sdl-ios-xcode: src/video/SDL_surface.c annotate

annotate src/video/SDL_surface.c @ 1718:ed4d4f1ea201 SDL-1.3

Further progress on the new Windows video driver: * SDL_SetModuleHandle() is obsolete, I hope. * SDL 1.3 uses the UNICODE API * I'm ignoring Windows CE for the moment, we'll reevaluate what needs to be different for Windows CE later. * Pulled the stdio redirection from WinMain()

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 27 Jun 2006 07:46:36 +0000
parents	396a35389351
children	a1ebb17f9c52

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1251 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1251 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1251 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1251 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1251 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1251 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1251 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 130 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 #include "SDL_video.h"
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	25 #include "SDL_compat.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #include "SDL_sysvideo.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 #include "SDL_blit.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #include "SDL_RLEaccel_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 #include "SDL_pixels_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #include "SDL_leaks.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31
1251 86d0d01290ea Updated Windows CE/PocketPC support...adds GAPI driver, landscape mode, Ryan C. Gordon <icculus@icculus.org> parents: 1155 diff changeset	32
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 /* Public routines */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 * Create an empty RGB surface of the appropriate depth
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	37 SDL_Surface *
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	38 SDL_CreateRGBSurface(Uint32 flags,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	39 int width, int height, int depth,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	40 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	42 SDL_Surface *screen;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	43 SDL_Surface *surface;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	45 /* FIXME!! */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	46 /* Make sure the size requested doesn't overflow our datatypes */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	47 /* Next time I write a library like SDL, I'll use int for size. :) */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	48 if (width >= 16384 \|\| height >= 65536) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	49 SDL_SetError("Width or height is too large");
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	50 return NULL;
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	51 }
940 bb1588ebe47b Date: Sat, 10 Jul 2004 21:02:33 +0200 Sam Lantinga <slouken@libsdl.org> parents: 915 diff changeset	52
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	53 /* Allocate the surface */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	54 surface = (SDL_Surface ) SDL_malloc(sizeof(surface));
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	55 if (surface == NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	56 SDL_OutOfMemory();
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	57 return NULL;
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	58 }
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	59 SDL_zerop(surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	60
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	61 surface->format = SDL_AllocFormat(depth, Rmask, Gmask, Bmask, Amask);
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	62 if (!surface->format) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	63 SDL_FreeSurface(surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	64 return NULL;
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	65 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	66 if (Amask) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	67 surface->flags \|= SDL_SRCALPHA;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	68 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	69 surface->w = width;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	70 surface->h = height;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	71 surface->pitch = SDL_CalculatePitch(surface);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	72 SDL_SetClipRect(surface, NULL);
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	73
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	74 if (surface->format->BitsPerPixel <= 8) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	75 SDL_Palette *palette =
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	76 SDL_AllocPalette((1 << surface->format->BitsPerPixel));
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	77 if (!palette) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	78 SDL_FreeSurface(surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	79 return NULL;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	80 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	81 if (Rmask \|\| Bmask \|\| Gmask) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	82 const SDL_PixelFormat *format = surface->format;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	83
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	84 /* create palette according to masks */
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	85 int i;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	86 int Rm = 0, Gm = 0, Bm = 0;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	87 int Rw = 0, Gw = 0, Bw = 0;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	88
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	89 if (Rmask) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	90 Rw = 8 - format->Rloss;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	91 for (i = format->Rloss; i > 0; i -= Rw)
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	92 Rm \|= 1 << i;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	93 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	94 if (Gmask) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	95 Gw = 8 - format->Gloss;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	96 for (i = format->Gloss; i > 0; i -= Gw)
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	97 Gm \|= 1 << i;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	98 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	99 if (Bmask) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	100 Bw = 8 - format->Bloss;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	101 for (i = format->Bloss; i > 0; i -= Bw)
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	102 Bm \|= 1 << i;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	103 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	104 for (i = 0; i < palette->ncolors; ++i) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	105 int r, g, b;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	106 r = (i & Rmask) >> format->Rshift;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	107 r = (r << format->Rloss) \| ((r * Rm) >> Rw);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	108 palette->colors[i].r = r;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	109
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	110 g = (i & Gmask) >> format->Gshift;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	111 g = (g << format->Gloss) \| ((g * Gm) >> Gw);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	112 palette->colors[i].g = g;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	113
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	114 b = (i & Bmask) >> format->Bshift;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	115 b = (b << format->Bloss) \| ((b * Bm) >> Bw);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	116 palette->colors[i].b = b;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	117 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	118 } else if (palette->ncolors == 2) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	119 /* Create a black and white bitmap palette */
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	120 palette->colors[0].r = 0xFF;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	121 palette->colors[0].g = 0xFF;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	122 palette->colors[0].b = 0xFF;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	123 palette->colors[1].r = 0x00;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	124 palette->colors[1].g = 0x00;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	125 palette->colors[1].b = 0x00;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	126 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	127 SDL_SetSurfacePalette(surface, palette);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	128 SDL_FreePalette(palette);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	129 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	131 /* Get the pixels */
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	132 if (surface->w && surface->h) {
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	133 surface->pixels = SDL_malloc(surface->h * surface->pitch);
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	134 if (!surface->pixels) {
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	135 SDL_FreeSurface(surface);
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	136 SDL_OutOfMemory();
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	137 return NULL;
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	138 }
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	139 /* This is important for bitmaps */
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	140 SDL_memset(surface->pixels, 0, surface->h * surface->pitch);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	141 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	143 /* Allocate an empty mapping */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	144 surface->map = SDL_AllocBlitMap();
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	145 if (!surface->map) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	146 SDL_FreeSurface(surface);
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	147 return NULL;
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	148 }
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	149 SDL_FormatChanged(surface);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	151 /* The surface is ready to go */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	152 surface->refcount = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	153 #ifdef CHECK_LEAKS
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	154 ++surfaces_allocated;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	155 #endif
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	156 return surface;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	157 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	158
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	159 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	160 * Create an RGB surface from an existing memory buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	161 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	162 SDL_Surface *
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	163 SDL_CreateRGBSurfaceFrom(void *pixels,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	164 int width, int height, int depth, int pitch,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	165 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	166 Uint32 Amask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	168 SDL_Surface *surface;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	170 surface =
8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	171 SDL_CreateRGBSurface(0, 0, 0, depth, Rmask, Gmask, Bmask, Amask);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	172 if (surface != NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	173 surface->flags \|= SDL_PREALLOC;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	174 surface->pixels = pixels;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	175 surface->w = width;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	176 surface->h = height;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	177 surface->pitch = pitch;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	178 SDL_SetClipRect(surface, NULL);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	179 }
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	180 return surface;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	181 }
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	182
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	183 SDL_Surface *
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	184 SDL_CreateRGBSurfaceFromTexture(SDL_TextureID textureID)
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	185 {
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	186 SDL_Surface *surface;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	187 Uint32 format;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	188 int w, h;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	189 int bpp;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	190 Uint32 Rmask, Gmask, Bmask, Amask;
1678 90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	191 void *pixels;
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	192 int pitch;
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	193
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	194 if (SDL_QueryTexture(textureID, &format, NULL, &w, &h) < 0) {
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	195 return NULL;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	196 }
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	197
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	198 if (!SDL_PixelFormatEnumToMasks
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	199 (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	200 SDL_SetError("Unknown texture format");
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	201 return NULL;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	202 }
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	203
1678 90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	204 if (SDL_QueryTexturePixels(textureID, &pixels, &pitch) == 0) {
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	205 surface =
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	206 SDL_CreateRGBSurfaceFrom(pixels, w, h, bpp, pitch, Rmask, Gmask,
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	207 Bmask, Amask);
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	208 } else {
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	209 surface =
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	210 SDL_CreateRGBSurface(0, 0, 0, bpp, Rmask, Gmask, Bmask, Amask);
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	211 if (surface) {
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	212 surface->flags \|= SDL_HWSURFACE;
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	213 surface->w = w;
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	214 surface->h = h;
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	215 SDL_SetClipRect(surface, NULL);
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	216 }
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	217 }
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	218 if (surface) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	219 surface->textureID = textureID;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	220 }
1678 90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	221
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	222 return surface;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	223 }
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	224
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	225 static int
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	226 SDL_SurfacePaletteChanged(void userdata, SDL_Palette palette)
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	227 {
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	228 SDL_Surface surface = (SDL_Surface ) userdata;
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	229
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	230 if (surface->textureID) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	231 if (SDL_SetTexturePalette
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	232 (surface->textureID, palette->colors, 0, palette->ncolors) < 0) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	233 SDL_GetTexturePalette(surface->textureID, palette->colors, 0,
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	234 palette->ncolors);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	235 return -1;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	236 }
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	237 }
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	238 SDL_FormatChanged(surface);
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	239
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	240 return 0;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	241 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	242
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	243 int
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	244 SDL_SetSurfacePalette(SDL_Surface * surface, SDL_Palette * palette)
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	245 {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	246 if (!surface \|\| !surface->format) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	247 SDL_SetError("SDL_SetSurfacePalette() passed a NULL surface");
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	248 return -1;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	249 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	250
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	251 if (palette && palette->ncolors != (1 << surface->format->BitsPerPixel)) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	252 SDL_SetError
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	253 ("SDL_SetSurfacePalette() passed a palette that doesn't match the surface format");
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	254 return -1;
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	255 }
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	256
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	257 if (surface->format->palette == palette) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	258 return 0;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	259 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	260
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	261 if (surface->format->palette) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	262 SDL_DelPaletteWatch(surface->format->palette,
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	263 SDL_SurfacePaletteChanged, surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	264 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	265
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	266 surface->format->palette = palette;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	267
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	268 if (surface->format->palette) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	269 SDL_AddPaletteWatch(surface->format->palette,
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	270 SDL_SurfacePaletteChanged, surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	271 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	272 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	273 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	274
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 * Set the color key in a blittable surface
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	277 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	278 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	279 SDL_SetColorKey(SDL_Surface * surface, Uint32 flag, Uint32 key)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	280 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	281 /* Sanity check the flag as it gets passed in */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	282 if (flag & SDL_SRCCOLORKEY) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	283 if (flag & (SDL_RLEACCEL \| SDL_RLEACCELOK)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	284 flag = (SDL_SRCCOLORKEY \| SDL_RLEACCELOK);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	285 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	286 flag = SDL_SRCCOLORKEY;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	287 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	288 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	289 flag = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	290 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	292 /* Optimize away operations that don't change anything */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	293 if ((flag == (surface->flags & (SDL_SRCCOLORKEY \| SDL_RLEACCELOK))) &&
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	294 (key == surface->format->colorkey)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	295 return (0);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	296 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	297
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	298 /* UnRLE surfaces before we change the colorkey */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	299 if (surface->flags & SDL_RLEACCEL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	300 SDL_UnRLESurface(surface, 1);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	301 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	302
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	303 if (flag) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	304 surface->flags \|= SDL_SRCCOLORKEY;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	305 surface->format->colorkey = key;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	306 if (flag & SDL_RLEACCELOK) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	307 surface->flags \|= SDL_RLEACCELOK;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	308 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	309 surface->flags &= ~SDL_RLEACCELOK;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	310 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	311 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	312 surface->flags &= ~(SDL_SRCCOLORKEY \| SDL_RLEACCELOK);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	313 surface->format->colorkey = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	314 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	315 SDL_InvalidateMap(surface->map);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	316 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	317 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	318
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	319 /* This function sets the alpha channel of a surface */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	320 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	321 SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	323 Uint32 oldflags = surface->flags;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	324 Uint32 oldalpha = surface->format->alpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	325
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	326 /* Sanity check the flag as it gets passed in */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	327 if (flag & SDL_SRCALPHA) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	328 if (flag & (SDL_RLEACCEL \| SDL_RLEACCELOK)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	329 flag = (SDL_SRCALPHA \| SDL_RLEACCELOK);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	330 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	331 flag = SDL_SRCALPHA;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	332 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	333 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	334 flag = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	335 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	336
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	337 /* Optimize away operations that don't change anything */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	338 if ((flag == (surface->flags & (SDL_SRCALPHA \| SDL_RLEACCELOK))) &&
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	339 (!flag \|\| value == oldalpha)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	340 return (0);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	341 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	342
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	343 if (!(flag & SDL_RLEACCELOK) && (surface->flags & SDL_RLEACCEL))
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	344 SDL_UnRLESurface(surface, 1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	345
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	346 if (flag) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	347 surface->flags \|= SDL_SRCALPHA;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	348 surface->format->alpha = value;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	349 if (flag & SDL_RLEACCELOK) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	350 surface->flags \|= SDL_RLEACCELOK;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	351 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	352 surface->flags &= ~SDL_RLEACCELOK;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	353 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	354 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	355 surface->flags &= ~SDL_SRCALPHA;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	356 surface->format->alpha = SDL_ALPHA_OPAQUE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	357 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	358 /*
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	359 * The representation for software surfaces is independent of
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	360 * per-surface alpha, so no need to invalidate the blit mapping
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	361 * if just the alpha value was changed. (If either is 255, we still
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	362 * need to invalidate.)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	363 */
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	364 if (oldflags != surface->flags
8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	365 \|\| (((oldalpha + 1) ^ (value + 1)) & 0x100)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	366 SDL_InvalidateMap(surface->map);
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	367 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	368 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	369 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	370
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	371 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	372 SDL_SetAlphaChannel(SDL_Surface * surface, Uint8 value)
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	373 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	374 int row, col;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	375 int offset;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	376 Uint8 *buf;
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	377
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	378 if ((surface->format->Amask != 0xFF000000) &&
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	379 (surface->format->Amask != 0x000000FF)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	380 SDL_SetError("Unsupported surface alpha mask format");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	381 return -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	382 }
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	383 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	384 if (surface->format->Amask == 0xFF000000) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	385 offset = 3;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	386 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	387 offset = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	388 }
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	389 #else
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	390 if (surface->format->Amask == 0xFF000000) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	391 offset = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	392 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	393 offset = 3;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	394 }
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	395 #endif /* Byte ordering */
41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	396
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	397 /* Quickly set the alpha channel of an RGBA or ARGB surface */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	398 if (SDL_MUSTLOCK(surface)) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	399 if (SDL_LockSurface(surface) < 0) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	400 return -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	401 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	402 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	403 row = surface->h;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	404 while (row--) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	405 col = surface->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	406 buf = (Uint8 ) surface->pixels + row surface->pitch + offset;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	407 while (col--) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	408 *buf = value;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	409 buf += 4;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	410 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	411 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	412 if (SDL_MUSTLOCK(surface)) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	413 SDL_UnlockSurface(surface);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	414 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	415 return 0;
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	416 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	418 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 * A function to calculate the intersection of two rectangles:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	420 * return true if the rectangles intersect, false otherwise
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	421 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	422 static __inline__ SDL_bool
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	423 SDL_IntersectRect(const SDL_Rect * A, const SDL_Rect * B,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	424 SDL_Rect * intersection)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	425 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	426 int Amin, Amax, Bmin, Bmax;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	427
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	428 /* Horizontal intersection */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	429 Amin = A->x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	430 Amax = Amin + A->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	431 Bmin = B->x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	432 Bmax = Bmin + B->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	433 if (Bmin > Amin)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	434 Amin = Bmin;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	435 intersection->x = Amin;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	436 if (Bmax < Amax)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	437 Amax = Bmax;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	438 intersection->w = Amax - Amin > 0 ? Amax - Amin : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	439
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	440 /* Vertical intersection */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	441 Amin = A->y;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	442 Amax = Amin + A->h;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	443 Bmin = B->y;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	444 Bmax = Bmin + B->h;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	445 if (Bmin > Amin)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	446 Amin = Bmin;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	447 intersection->y = Amin;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	448 if (Bmax < Amax)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	449 Amax = Bmax;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	450 intersection->h = Amax - Amin > 0 ? Amax - Amin : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	451
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	452 return (intersection->w && intersection->h);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	453 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	454
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	455 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	456 * Set the clipping rectangle for a blittable surface
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	457 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	458 SDL_bool
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	459 SDL_SetClipRect(SDL_Surface * surface, const SDL_Rect * rect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	460 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	461 SDL_Rect full_rect;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	462
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	463 /* Don't do anything if there's no surface to act on */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	464 if (!surface) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	465 return SDL_FALSE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	466 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	467
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	468 /* Set up the full surface rectangle */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	469 full_rect.x = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	470 full_rect.y = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	471 full_rect.w = surface->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	472 full_rect.h = surface->h;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	473
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	474 /* Set the clipping rectangle */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	475 if (!rect) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	476 surface->clip_rect = full_rect;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	477 return 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	478 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	479 return SDL_IntersectRect(rect, &full_rect, &surface->clip_rect);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	480 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	481
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	482 void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	483 SDL_GetClipRect(SDL_Surface * surface, SDL_Rect * rect)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	484 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	485 if (surface && rect) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	486 *rect = surface->clip_rect;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	487 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	488 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	489
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	490 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	491 * Set up a blit between two surfaces -- split into three parts:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	492 * The upper part, SDL_UpperBlit(), performs clipping and rectangle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	493 * verification. The lower part is a pointer to a low level
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	494 * accelerated blitting function.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	495 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	496 * These parts are separated out and each used internally by this
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	497 * library in the optimimum places. They are exported so that if
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	498 * you know exactly what you are doing, you can optimize your code
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	499 * by calling the one(s) you need.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	500 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	501 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	502 SDL_LowerBlit(SDL_Surface * src, SDL_Rect * srcrect,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	503 SDL_Surface * dst, SDL_Rect * dstrect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	504 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	505 /* Check to make sure the blit mapping is valid */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	506 if ((src->map->dst != dst) \|\|
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	507 (src->map->dst->format_version != src->map->format_version)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	508 if (SDL_MapSurface(src, dst) < 0) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	509 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	510 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	511 }
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	512 return (src->map->sw_blit(src, srcrect, dst, dstrect));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	514
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	515
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	516 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	517 SDL_UpperBlit(SDL_Surface * src, SDL_Rect * srcrect,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	518 SDL_Surface * dst, SDL_Rect * dstrect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	519 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	520 SDL_Rect fulldst;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	521 int srcx, srcy, w, h;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	522
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	523 /* Make sure the surfaces aren't locked */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	524 if (!src \|\| !dst) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	525 SDL_SetError("SDL_UpperBlit: passed a NULL surface");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	526 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	527 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	528 if (src->locked \|\| dst->locked) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	529 SDL_SetError("Surfaces must not be locked during blit");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	530 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	531 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	532
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	533 /* If the destination rectangle is NULL, use the entire dest surface */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	534 if (dstrect == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	535 fulldst.x = fulldst.y = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	536 dstrect = &fulldst;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	537 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	538
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	539 /* clip the source rectangle to the source surface */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	540 if (srcrect) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	541 int maxw, maxh;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	542
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	543 srcx = srcrect->x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	544 w = srcrect->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	545 if (srcx < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	546 w += srcx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	547 dstrect->x -= srcx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	548 srcx = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	549 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	550 maxw = src->w - srcx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	551 if (maxw < w)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	552 w = maxw;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	553
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	554 srcy = srcrect->y;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	555 h = srcrect->h;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	556 if (srcy < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	557 h += srcy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	558 dstrect->y -= srcy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	559 srcy = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	560 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	561 maxh = src->h - srcy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	562 if (maxh < h)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	563 h = maxh;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	564
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	565 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	566 srcx = srcy = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	567 w = src->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	568 h = src->h;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	569 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	570
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	571 /* clip the destination rectangle against the clip rectangle */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	572 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	573 SDL_Rect *clip = &dst->clip_rect;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	574 int dx, dy;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	575
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	576 dx = clip->x - dstrect->x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	577 if (dx > 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	578 w -= dx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	579 dstrect->x += dx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	580 srcx += dx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	581 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	582 dx = dstrect->x + w - clip->x - clip->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	583 if (dx > 0)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	584 w -= dx;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	585
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	586 dy = clip->y - dstrect->y;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	587 if (dy > 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	588 h -= dy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	589 dstrect->y += dy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	590 srcy += dy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	591 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	592 dy = dstrect->y + h - clip->y - clip->h;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	593 if (dy > 0)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	594 h -= dy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	595 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	596
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	597 if (w > 0 && h > 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	598 SDL_Rect sr;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	599 sr.x = srcx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	600 sr.y = srcy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	601 sr.w = dstrect->w = w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	602 sr.h = dstrect->h = h;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	603 return SDL_LowerBlit(src, &sr, dst, dstrect);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	604 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	605 dstrect->w = dstrect->h = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	606 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	607 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	608
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	609 static int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	610 SDL_FillRect1(SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color)
532 058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	611 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	612 /* FIXME: We have to worry about packing order.. sigh */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	613 SDL_SetError("1-bpp rect fill not yet implemented");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	614 return -1;
532 058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	615 }
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	616
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	617 static int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	618 SDL_FillRect4(SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color)
532 058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	619 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	620 /* FIXME: We have to worry about packing order.. sigh */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	621 SDL_SetError("4-bpp rect fill not yet implemented");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	622 return -1;
532 058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	623 }
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	624
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	625 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	626 * This function performs a fast fill of the given rectangle with 'color'
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	627 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	628 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	629 SDL_FillRect(SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	630 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	631 int x, y;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	632 Uint8 *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	633
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	634 /* This function doesn't work on surfaces < 8 bpp */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	635 if (dst->format->BitsPerPixel < 8) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	636 switch (dst->format->BitsPerPixel) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	637 case 1:
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	638 return SDL_FillRect1(dst, dstrect, color);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	639 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	640 case 4:
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	641 return SDL_FillRect4(dst, dstrect, color);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	642 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	643 default:
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	644 SDL_SetError("Fill rect on unsupported surface format");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	645 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	646 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	647 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	648 }
532 058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	649
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	650 /* If 'dstrect' == NULL, then fill the whole surface */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	651 if (dstrect) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	652 /* Perform clipping */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	653 if (!SDL_IntersectRect(dstrect, &dst->clip_rect, dstrect)) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	654 return (0);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	655 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	656 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	657 dstrect = &dst->clip_rect;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	658 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	659
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	660 /* Perform software fill */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	661 if (SDL_LockSurface(dst) != 0) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	662 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	663 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	664 row = (Uint8 ) dst->pixels + dstrect->y dst->pitch +
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	665 dstrect->x * dst->format->BytesPerPixel;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	666 if (dst->format->palette \|\| (color == 0)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	667 x = dstrect->w * dst->format->BytesPerPixel;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	668 if (!color && !((uintptr_t) row & 3) && !(x & 3)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	669 && !(dst->pitch & 3)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	670 int n = x >> 2;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	671 for (y = dstrect->h; y; --y) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	672 SDL_memset4(row, 0, n);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	673 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	674 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	675 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	676 #ifdef __powerpc__
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	677 /*
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	678 * SDL_memset() on PPC (both glibc and codewarrior) uses
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	679 * the dcbz (Data Cache Block Zero) instruction, which
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	680 * causes an alignment exception if the destination is
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	681 * uncachable, so only use it on software surfaces
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	682 */
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	683 if (dst->flags & SDL_HWSURFACE) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	684 if (dstrect->w >= 8) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	685 /*
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	686 * 64-bit stores are probably most
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	687 * efficient to uncached video memory
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	688 */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	689 double fill;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	690 SDL_memset(&fill, color, (sizeof fill));
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	691 for (y = dstrect->h; y; y--) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	692 Uint8 *d = row;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	693 unsigned n = x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	694 unsigned nn;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	695 Uint8 c = color;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	696 double f = fill;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	697 while ((unsigned long) d & (sizeof(double) - 1)) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	698 *d++ = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	699 n--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	700 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	701 nn = n / (sizeof(double) * 4);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	702 while (nn) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	703 ((double *) d)[0] = f;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	704 ((double *) d)[1] = f;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	705 ((double *) d)[2] = f;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	706 ((double *) d)[3] = f;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	707 d += 4 * sizeof(double);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	708 nn--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	709 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	710 n &= ~(sizeof(double) * 4 - 1);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	711 nn = n / sizeof(double);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	712 while (nn) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	713 (double ) d = f;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	714 d += sizeof(double);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	715 nn--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	716 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	717 n &= ~(sizeof(double) - 1);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	718 while (n) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	719 *d++ = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	720 n--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	721 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	722 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	723 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	724 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	725 /* narrow boxes */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	726 for (y = dstrect->h; y; y--) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	727 Uint8 *d = row;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	728 Uint8 c = color;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	729 int n = x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	730 while (n) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	731 *d++ = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	732 n--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	733 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	734 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	735 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	736 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	737 } else
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	738 #endif /* __powerpc__ */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	739 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	740 for (y = dstrect->h; y; y--) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	741 SDL_memset(row, color, x);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	742 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	743 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	744 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	745 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	746 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	747 switch (dst->format->BytesPerPixel) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	748 case 2:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	749 for (y = dstrect->h; y; --y) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	750 Uint16 pixels = (Uint16 ) row;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	751 Uint16 c = (Uint16) color;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	752 Uint32 cc = (Uint32) c << 16 \| c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	753 int n = dstrect->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	754 if ((uintptr_t) pixels & 3) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	755 *pixels++ = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	756 n--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	757 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	758 if (n >> 1)
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	759 SDL_memset4(pixels, cc, n >> 1);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	760 if (n & 1)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	761 pixels[n - 1] = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	762 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	763 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	764 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	765
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	766 case 3:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	767 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	768 color <<= 8;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	769 #endif
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	770 for (y = dstrect->h; y; --y) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	771 Uint8 *pixels = row;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	772 for (x = dstrect->w; x; --x) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	773 SDL_memcpy(pixels, &color, 3);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	774 pixels += 3;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	775 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	776 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	777 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	778 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	779
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	780 case 4:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	781 for (y = dstrect->h; y; --y) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	782 SDL_memset4(row, color, dstrect->w);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	783 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	784 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	785 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	786 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	787 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	788 SDL_UnlockSurface(dst);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	789
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	790 /* We're done! */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	791 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	792 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	793
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	794 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	795 * Lock a surface to directly access the pixels
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	796 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	797 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	798 SDL_LockSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	799 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	800 if (!surface->locked) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	801 /* Perform the lock */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	802 if (surface->flags & SDL_HWSURFACE) {
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	803 if (SDL_LockTexture
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	804 (surface->textureID, NULL, 1, &surface->pixels,
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	805 &surface->pitch) < 0) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	806 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	807 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	808 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	809 if (surface->flags & SDL_RLEACCEL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	810 SDL_UnRLESurface(surface, 1);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	811 surface->flags \|= SDL_RLEACCEL; /* save accel'd state */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	812 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	813 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	814
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	815 /* Increment the surface lock count, for recursive locks */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	816 ++surface->locked;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	817
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	818 /* Ready to go.. */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	819 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	820 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	821
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	822 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	823 * Unlock a previously locked surface
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	824 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	825 void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	826 SDL_UnlockSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	827 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	828 /* Only perform an unlock if we are locked */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	829 if (!surface->locked \|\| (--surface->locked > 0)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	830 return;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	831 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	832
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	833 /* Unlock hardware or accelerated surfaces */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	834 if (surface->flags & SDL_HWSURFACE) {
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	835 SDL_UnlockTexture(surface->textureID);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	836 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	837
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	838 /* Update RLE encoded surface with new data */
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	839 if ((surface->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	840 surface->flags &= ~SDL_RLEACCEL; /* stop lying */
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	841 SDL_RLESurface(surface);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	842 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	843 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	844
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	845 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	846 * Convert a surface into the specified pixel format.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	847 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	848 SDL_Surface *
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	849 SDL_ConvertSurface(SDL_Surface * surface,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	850 SDL_PixelFormat * format, Uint32 flags)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	851 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	852 SDL_Surface *convert;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	853 Uint32 colorkey = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	854 Uint8 alpha = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	855 Uint32 surface_flags;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	856 SDL_Rect bounds;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	857
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	858 /* Check for empty destination palette! (results in empty image) */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	859 if (format->palette != NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	860 int i;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	861 for (i = 0; i < format->palette->ncolors; ++i) {
1682 7ae8018b2e5d Default palette entries to white, instead of black. Sam Lantinga <slouken@libsdl.org> parents: 1678 diff changeset	862 if ((format->palette->colors[i].r != 0xFF) \|\|
7ae8018b2e5d Default palette entries to white, instead of black. Sam Lantinga <slouken@libsdl.org> parents: 1678 diff changeset	863 (format->palette->colors[i].g != 0xFF) \|\|
7ae8018b2e5d Default palette entries to white, instead of black. Sam Lantinga <slouken@libsdl.org> parents: 1678 diff changeset	864 (format->palette->colors[i].b != 0xFF))
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	865 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	866 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	867 if (i == format->palette->ncolors) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	868 SDL_SetError("Empty destination palette");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	869 return (NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	870 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	871 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	872
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	873 /* Create a new surface with the desired format */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	874 convert = SDL_CreateRGBSurface(flags,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	875 surface->w, surface->h,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	876 format->BitsPerPixel, format->Rmask,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	877 format->Gmask, format->Bmask,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	878 format->Amask);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	879 if (convert == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	880 return (NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	881 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	882
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	883 /* Copy the palette if any */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	884 if (format->palette && convert->format->palette) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	885 SDL_memcpy(convert->format->palette->colors,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	886 format->palette->colors,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	887 format->palette->ncolors * sizeof(SDL_Color));
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	888 convert->format->palette->ncolors = format->palette->ncolors;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	889 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	890
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	891 /* Save the original surface color key and alpha */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	892 surface_flags = surface->flags;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	893 if ((surface_flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	894 /* Convert colourkeyed surfaces to RGBA if requested */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	895 if ((flags & SDL_SRCCOLORKEY) != SDL_SRCCOLORKEY && format->Amask) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	896 surface_flags &= ~SDL_SRCCOLORKEY;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	897 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	898 colorkey = surface->format->colorkey;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	899 SDL_SetColorKey(surface, 0, 0);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	900 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	901 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	902 if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	903 /* Copy over the alpha channel to RGBA if requested */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	904 if (format->Amask) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	905 surface->flags &= ~SDL_SRCALPHA;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	906 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	907 alpha = surface->format->alpha;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	908 SDL_SetAlpha(surface, 0, 0);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	909 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	910 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	911
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	912 /* Copy over the image data */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	913 bounds.x = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	914 bounds.y = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	915 bounds.w = surface->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	916 bounds.h = surface->h;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	917 SDL_LowerBlit(surface, &bounds, convert, &bounds);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	918
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	919 /* Clean up the original surface, and update converted surface */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	920 if (convert != NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	921 SDL_SetClipRect(convert, &surface->clip_rect);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	922 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	923 if ((surface_flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	924 Uint32 cflags = surface_flags & (SDL_SRCCOLORKEY \| SDL_RLEACCELOK);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	925 if (convert != NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	926 Uint8 keyR, keyG, keyB;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	927
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	928 SDL_GetRGB(colorkey, surface->format, &keyR, &keyG, &keyB);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	929 SDL_SetColorKey(convert, cflags \| (flags & SDL_RLEACCELOK),
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	930 SDL_MapRGB(convert->format, keyR, keyG, keyB));
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	931 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	932 SDL_SetColorKey(surface, cflags, colorkey);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	933 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	934 if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	935 Uint32 aflags = surface_flags & (SDL_SRCALPHA \| SDL_RLEACCELOK);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	936 if (convert != NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	937 SDL_SetAlpha(convert, aflags \| (flags & SDL_RLEACCELOK), alpha);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	938 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	939 if (format->Amask) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	940 surface->flags \|= SDL_SRCALPHA;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	941 } else {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	942 SDL_SetAlpha(surface, aflags, alpha);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	943 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	944 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	945
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	946 /* We're ready to go! */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	947 return (convert);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	948 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	949
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	950 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	951 * Free a surface created by the above function.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	952 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	953 void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	954 SDL_FreeSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	955 {
1666 6e7ec5cb83c3 The dummy video driver compiles. :) Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	956 if (surface == NULL) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	957 return;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	958 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	959 if (--surface->refcount > 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	960 return;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	961 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	962 while (surface->locked > 0) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	963 SDL_UnlockSurface(surface);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	964 }
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	965 if (surface->flags & SDL_RLEACCEL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	966 SDL_UnRLESurface(surface, 0);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	967 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	968 if (surface->format) {
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	969 SDL_SetSurfacePalette(surface, NULL);
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	970 SDL_FreeFormat(surface->format);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	971 surface->format = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	972 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	973 if (surface->map != NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	974 SDL_FreeBlitMap(surface->map);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	975 surface->map = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	976 }
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	977 /* Should we destroy the texture too?
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	978 if (surface->textureID) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	979 SDL_DestroyTexture(surface->textureID);
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	980 }
8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	981 */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	982 if (surface->pixels && ((surface->flags & SDL_PREALLOC) != SDL_PREALLOC)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	983 SDL_free(surface->pixels);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	984 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	985 SDL_free(surface);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	986 #ifdef CHECK_LEAKS
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	987 --surfaces_allocated;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	988 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	989 }
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	990
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	991 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_surface.c @ 1718:ed4d4f1ea201 SDL-1.3