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

annotate src/video/SDL_surface.c @ 1734:f7c667ded87d SDL-1.3

The general code handles restoring video mode/gamma/etc. when the window loses focus. Support for changing fullscreen/windowed mode in progress.

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 09 Jul 2006 18:09:16 +0000
parents	6c63fc2bd986
children	8dd28c4ef746

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 *surface;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	44 /* 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	45 /* 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	46 /* 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	47 if (width >= 16384 \|\| height >= 65536) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	48 SDL_SetError("Width or height is too large");
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	49 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	50 }
940 bb1588ebe47b Date: Sat, 10 Jul 2004 21:02:33 +0200 Sam Lantinga <slouken@libsdl.org> parents: 915 diff changeset	51
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	52 /* Allocate the surface */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	53 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	54 if (surface == NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	55 SDL_OutOfMemory();
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	56 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	57 }
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	58 SDL_zerop(surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	59
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	60 surface->format = SDL_AllocFormat(depth, Rmask, Gmask, Bmask, Amask);
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	61 if (!surface->format) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	62 SDL_FreeSurface(surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	63 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	64 }
782fd950bd46 Revamp of the video system in 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 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	66 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	67 }
782fd950bd46 Revamp of the video system in 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 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	69 surface->h = height;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	70 surface->pitch = SDL_CalculatePitch(surface);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	71 SDL_SetClipRect(surface, NULL);
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	72
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	73 if (surface->format->BitsPerPixel <= 8) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	74 SDL_Palette *palette =
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	75 SDL_AllocPalette((1 << surface->format->BitsPerPixel));
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	76 if (!palette) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	77 SDL_FreeSurface(surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	78 return NULL;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	79 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	80 if (Rmask \|\| Bmask \|\| Gmask) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	81 const SDL_PixelFormat *format = surface->format;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	82
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	83 /* create palette according to masks */
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	84 int i;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	85 int Rm = 0, Gm = 0, Bm = 0;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	86 int Rw = 0, Gw = 0, Bw = 0;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	87
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	88 if (Rmask) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	89 Rw = 8 - format->Rloss;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	90 for (i = format->Rloss; i > 0; i -= Rw)
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	91 Rm \|= 1 << i;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	92 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	93 if (Gmask) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	94 Gw = 8 - format->Gloss;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	95 for (i = format->Gloss; i > 0; i -= Gw)
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	96 Gm \|= 1 << i;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	97 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	98 if (Bmask) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	99 Bw = 8 - format->Bloss;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	100 for (i = format->Bloss; i > 0; i -= Bw)
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	101 Bm \|= 1 << i;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	102 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	103 for (i = 0; i < palette->ncolors; ++i) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	104 int r, g, b;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	105 r = (i & Rmask) >> format->Rshift;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	106 r = (r << format->Rloss) \| ((r * Rm) >> Rw);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	107 palette->colors[i].r = r;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	108
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	109 g = (i & Gmask) >> format->Gshift;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	110 g = (g << format->Gloss) \| ((g * Gm) >> Gw);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	111 palette->colors[i].g = g;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	112
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	113 b = (i & Bmask) >> format->Bshift;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	114 b = (b << format->Bloss) \| ((b * Bm) >> Bw);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	115 palette->colors[i].b = b;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	116 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	117 } else if (palette->ncolors == 2) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	118 /* Create a black and white bitmap palette */
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	119 palette->colors[0].r = 0xFF;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	120 palette->colors[0].g = 0xFF;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	121 palette->colors[0].b = 0xFF;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	122 palette->colors[1].r = 0x00;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	123 palette->colors[1].g = 0x00;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	124 palette->colors[1].b = 0x00;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	125 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	126 SDL_SetSurfacePalette(surface, palette);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	127 SDL_FreePalette(palette);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	128 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129
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	130 /* Get the pixels */
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	131 if (surface->w && surface->h) {
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	132 surface->pixels = SDL_malloc(surface->h * surface->pitch);
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	133 if (!surface->pixels) {
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	134 SDL_FreeSurface(surface);
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	135 SDL_OutOfMemory();
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	136 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	137 }
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	138 /* This is important for bitmaps */
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	139 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	140 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141
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	142 /* Allocate an empty mapping */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	143 surface->map = SDL_AllocBlitMap();
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	144 if (!surface->map) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	145 SDL_FreeSurface(surface);
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	146 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	147 }
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	148 SDL_FormatChanged(surface);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149
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	150 /* 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	151 surface->refcount = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152 #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	153 ++surfaces_allocated;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	154 #endif
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	155 return surface;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156 }
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	157
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	158 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	159 * Create an RGB surface from an existing memory buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	160 */
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	161 SDL_Surface *
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	162 SDL_CreateRGBSurfaceFrom(void *pixels,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	163 int width, int height, int depth, int pitch,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	164 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	165 Uint32 Amask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	166 {
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	167 SDL_Surface *surface;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	169 surface =
8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	170 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	171 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	172 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	173 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	174 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	175 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	176 surface->pitch = pitch;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	177 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	178 }
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	179 return surface;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	180 }
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 SDL_Surface *
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	183 SDL_CreateRGBSurfaceFromTexture(SDL_TextureID textureID)
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	184 {
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	185 SDL_Surface *surface;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	186 Uint32 format;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	187 int w, h;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	188 int bpp;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	189 Uint32 Rmask, Gmask, Bmask, Amask;
1678 90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	190 void *pixels;
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	191 int pitch;
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	192
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	193 if (SDL_QueryTexture(textureID, &format, NULL, &w, &h) < 0) {
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	194 return NULL;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	195 }
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 if (!SDL_PixelFormatEnumToMasks
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	198 (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	199 SDL_SetError("Unknown texture format");
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	200 return NULL;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	201 }
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	202
1678 90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	203 if (SDL_QueryTexturePixels(textureID, &pixels, &pitch) == 0) {
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	204 surface =
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	205 SDL_CreateRGBSurfaceFrom(pixels, w, h, bpp, pitch, Rmask, Gmask,
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	206 Bmask, Amask);
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	207 } else {
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	208 surface =
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	209 SDL_CreateRGBSurface(0, 0, 0, bpp, Rmask, Gmask, Bmask, Amask);
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	210 if (surface) {
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	211 surface->flags \|= SDL_HWSURFACE;
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	212 surface->w = w;
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	213 surface->h = h;
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	214 SDL_SetClipRect(surface, NULL);
90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	215 }
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	216 }
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	217 if (surface) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	218 surface->textureID = textureID;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	219 }
1678 90bf530ced8e SDL_SetVideoMode() compiles now... Sam Lantinga <slouken@libsdl.org> parents: 1672 diff changeset	220
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	221 return surface;
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	222 }
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	223
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	224 static int
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	225 SDL_SurfacePaletteChanged(void userdata, SDL_Palette palette)
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	226 {
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	227 SDL_Surface surface = (SDL_Surface ) userdata;
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	228
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	229 if (surface->textureID) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	230 if (SDL_SetTexturePalette
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	231 (surface->textureID, palette->colors, 0, palette->ncolors) < 0) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	232 SDL_GetTexturePalette(surface->textureID, palette->colors, 0,
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	233 palette->ncolors);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	234 return -1;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	235 }
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	236 }
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	237 SDL_FormatChanged(surface);
eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	238
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	239 return 0;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	240 }
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 int
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	243 SDL_SetSurfacePalette(SDL_Surface * surface, SDL_Palette * palette)
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	244 {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	245 if (!surface \|\| !surface->format) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	246 SDL_SetError("SDL_SetSurfacePalette() passed a NULL surface");
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	247 return -1;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	248 }
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 if (palette && palette->ncolors != (1 << surface->format->BitsPerPixel)) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	251 SDL_SetError
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	252 ("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	253 return -1;
1670 eef792d31de8 Work in progress. :) Sam Lantinga <slouken@libsdl.org> parents: 1668 diff changeset	254 }
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	255
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	256 if (surface->format->palette == palette) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	257 return 0;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	258 }
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 if (surface->format->palette) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	261 SDL_DelPaletteWatch(surface->format->palette,
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	262 SDL_SurfacePaletteChanged, surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	263 }
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 surface->format->palette = palette;
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	266
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	267 if (surface->format->palette) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	268 SDL_AddPaletteWatch(surface->format->palette,
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	269 SDL_SurfacePaletteChanged, surface);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	270 }
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	271 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	272 }
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	273
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	274 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 * Set the color key in a blittable surface
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 */
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	277 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	278 SDL_SetColorKey(SDL_Surface * surface, Uint32 flag, Uint32 key)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 {
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	280 /* 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	281 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	282 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	283 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	284 } 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	285 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	286 }
782fd950bd46 Revamp of the video system in 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 } 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	288 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	289 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290
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	291 /* 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	292 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	293 (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	294 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	295 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	296
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	297 /* 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	298 if (surface->flags & SDL_RLEACCEL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	299 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	300 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301
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	302 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	303 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	304 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	305 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	306 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	307 } 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	308 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	309 }
782fd950bd46 Revamp of the video system in 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 } 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	311 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	312 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	313 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	314 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	315 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	316 }
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	317
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	318 /* 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	319 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	320 SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321 {
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	322 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	323 Uint32 oldalpha = surface->format->alpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324
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	325 /* 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	326 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	327 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	328 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	329 } 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	330 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	331 }
782fd950bd46 Revamp of the video system in 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 } 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	333 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	334 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	335
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	336 /* 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	337 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	338 (!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	339 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	340 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341
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	342 if (!(flag & SDL_RLEACCELOK) && (surface->flags & SDL_RLEACCEL))
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	343 SDL_UnRLESurface(surface, 1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	344
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	345 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	346 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	347 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	348 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	349 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	350 } 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	351 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	352 }
782fd950bd46 Revamp of the video system in 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 } 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	354 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	355 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	356 }
782fd950bd46 Revamp of the video system in 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 * 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	359 * 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	360 * 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	361 * 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	362 */
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	363 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	364 \|\| (((oldalpha + 1) ^ (value + 1)) & 0x100)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	365 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	366 }
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	367 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	368 }
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	369
782fd950bd46 Revamp of the video system in 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 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	371 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	372 {
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	373 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	374 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	375 Uint8 *buf;
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	376
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	377 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	378 (surface->format->Amask != 0x000000FF)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	379 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	380 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	381 }
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	382 #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	383 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	384 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	385 } 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	386 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	387 }
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	388 #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	389 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	390 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	391 } 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	392 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	393 }
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	394 #endif /* Byte ordering */
41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	395
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	396 /* 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	397 if (SDL_MUSTLOCK(surface)) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	398 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	399 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	400 }
782fd950bd46 Revamp of the video system in 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 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	403 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	404 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	405 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	406 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	407 *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	408 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	409 }
782fd950bd46 Revamp of the video system in 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 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	411 if (SDL_MUSTLOCK(surface)) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	412 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	413 }
782fd950bd46 Revamp of the video system in 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 return 0;
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	415 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	416
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	418 * A function to calculate the intersection of two rectangles:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 * return true if the rectangles intersect, false otherwise
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	420 */
1724 6c63fc2bd986 Proof of concept done - Win32 GDI implementation mostly complete. Sam Lantinga <slouken@libsdl.org> parents: 1720 diff changeset	421 SDL_bool
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	422 SDL_IntersectRect(const SDL_Rect * A, const SDL_Rect * B,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	423 SDL_Rect * intersection)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	424 {
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	425 int Amin, Amax, Bmin, Bmax;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	426
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	427 /* 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	428 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	429 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	430 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	431 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	432 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	433 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	434 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	435 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	436 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	437 intersection->w = Amax - Amin > 0 ? Amax - Amin : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	438
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	439 /* 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	440 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	441 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	442 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	443 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	444 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	445 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	446 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	447 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	448 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	449 intersection->h = Amax - Amin > 0 ? Amax - Amin : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	450
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	451 return (intersection->w && intersection->h);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	452 }
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	453
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	454 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	455 * Set the clipping rectangle for a blittable surface
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	456 */
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	457 SDL_bool
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	458 SDL_SetClipRect(SDL_Surface * surface, const SDL_Rect * rect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	459 {
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	460 SDL_Rect full_rect;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	461
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	462 /* 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	463 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	464 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	465 }
782fd950bd46 Revamp of the video system in 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 /* 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	468 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	469 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	470 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	471 full_rect.h = surface->h;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	472
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	473 /* 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	474 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	475 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	476 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	477 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	478 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	479 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	480
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	481 void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	482 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	483 {
782fd950bd46 Revamp of the video system in 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 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	485 *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	486 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	487 }
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	488
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	489 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	490 * Set up a blit between two surfaces -- split into three parts:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	491 * The upper part, SDL_UpperBlit(), performs clipping and rectangle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	492 * verification. The lower part is a pointer to a low level
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	493 * accelerated blitting function.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	494 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	495 * These parts are separated out and each used internally by this
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	496 * library in the optimimum places. They are exported so that if
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	497 * you know exactly what you are doing, you can optimize your code
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	498 * by calling the one(s) you need.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	499 */
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	500 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	501 SDL_LowerBlit(SDL_Surface * src, SDL_Rect * srcrect,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	502 SDL_Surface * dst, SDL_Rect * dstrect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	503 {
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	504 /* 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	505 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	506 (src->map->dst->format_version != src->map->format_version)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	507 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	508 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	509 }
782fd950bd46 Revamp of the video system in 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 }
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	511 return (src->map->sw_blit(src, srcrect, dst, dstrect));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	512 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	514
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	515 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	516 SDL_UpperBlit(SDL_Surface * src, SDL_Rect * srcrect,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	517 SDL_Surface * dst, SDL_Rect * dstrect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	518 {
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	519 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	520 int srcx, srcy, w, h;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	521
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	522 /* 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	523 if (!src \|\| !dst) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	524 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	525 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	526 }
782fd950bd46 Revamp of the video system in 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 if (src->locked \|\| dst->locked) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	528 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	529 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	530 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	531
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	532 /* 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	533 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	534 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	535 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	536 }
782fd950bd46 Revamp of the video system in 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 /* 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	539 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	540 int maxw, maxh;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	541
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	542 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	543 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	544 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	545 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	546 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	547 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	548 }
782fd950bd46 Revamp of the video system in 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 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	550 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	551 w = maxw;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	552
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	553 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	554 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	555 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	556 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	557 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	558 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	559 }
782fd950bd46 Revamp of the video system in 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 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	561 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	562 h = maxh;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	563
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	564 } 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	565 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	566 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	567 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	568 }
782fd950bd46 Revamp of the video system in 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 /* 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	571 {
782fd950bd46 Revamp of the video system in 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 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	573 int dx, dy;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	574
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	575 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	576 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	577 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	578 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	579 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	580 }
782fd950bd46 Revamp of the video system in 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 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	582 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	583 w -= dx;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	584
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	585 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	586 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	587 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	588 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	589 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	590 }
782fd950bd46 Revamp of the video system in 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 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	592 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	593 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	594 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	595
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	596 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	597 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	598 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	599 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	600 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	601 sr.h = dstrect->h = h;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	602 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	603 }
782fd950bd46 Revamp of the video system in 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 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	605 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	606 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	607
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	608 static int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	609 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	610 {
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	611 /* FIXME: We have to worry about packing order.. sigh */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	612 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	613 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	614 }
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	615
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	616 static int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	617 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	618 {
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	619 /* FIXME: We have to worry about packing order.. sigh */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	620 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	621 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	622 }
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	623
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	624 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	625 * This function performs a fast fill of the given rectangle with 'color'
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	626 */
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	627 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	628 SDL_FillRect(SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	629 {
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	630 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	631 Uint8 *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	632
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	633 /* 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	634 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	635 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	636 case 1:
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	637 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	638 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	639 case 4:
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	640 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	641 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	642 default:
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	643 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	644 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	645 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	646 }
782fd950bd46 Revamp of the video system in 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 }
532 058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces. Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	648
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	649 /* 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	650 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	651 /* Perform clipping */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	652 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	653 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	654 }
782fd950bd46 Revamp of the video system in 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 } 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	656 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	657 }
782fd950bd46 Revamp of the video system in 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 /* Perform software fill */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	660 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	661 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	662 }
782fd950bd46 Revamp of the video system in 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 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	664 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	665 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	666 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	667 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	668 && !(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	669 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	670 for (y = dstrect->h; y; --y) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	671 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	672 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	673 }
782fd950bd46 Revamp of the video system in 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 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	675 #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	676 /*
782fd950bd46 Revamp of the video system in 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 * 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	678 * 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	679 * 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	680 * 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	681 */
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	682 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	683 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	684 /*
782fd950bd46 Revamp of the video system in 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 * 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	686 * 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	687 */
782fd950bd46 Revamp of the video system in 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 double fill;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	689 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	690 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	691 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	692 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	693 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	694 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	695 double f = fill;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	696 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	697 *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	698 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	699 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	700 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	701 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	702 ((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	703 ((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	704 ((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	705 ((double *) d)[3] = f;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	706 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	707 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	708 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	709 n &= ~(sizeof(double) * 4 - 1);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	710 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	711 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	712 (double ) d = f;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	713 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	714 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	715 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	716 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	717 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	718 *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	719 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	720 }
782fd950bd46 Revamp of the video system in 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 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	722 }
782fd950bd46 Revamp of the video system in 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 } 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	724 /* 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	725 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	726 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	727 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	728 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	729 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	730 *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	731 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	732 }
782fd950bd46 Revamp of the video system in 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 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	734 }
782fd950bd46 Revamp of the video system in 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 } else
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	737 #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	738 {
782fd950bd46 Revamp of the video system in 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 for (y = dstrect->h; y; y--) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	740 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	741 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	742 }
782fd950bd46 Revamp of the video system in 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 } 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	746 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	747 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	748 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	749 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	750 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	751 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	752 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	753 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	754 *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	755 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	756 }
782fd950bd46 Revamp of the video system in 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 if (n >> 1)
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	758 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	759 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	760 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	761 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	762 }
782fd950bd46 Revamp of the video system in 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 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	764
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	765 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	766 #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	767 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	768 #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	769 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	770 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	771 for (x = dstrect->w; x; --x) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	772 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	773 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	774 }
782fd950bd46 Revamp of the video system in 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 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	776 }
782fd950bd46 Revamp of the video system in 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 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	778
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	779 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	780 for (y = dstrect->h; y; --y) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	781 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	782 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	783 }
782fd950bd46 Revamp of the video system in 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 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	785 }
782fd950bd46 Revamp of the video system in 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 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	787 SDL_UnlockSurface(dst);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	788
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	789 /* 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	790 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	791 }
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 * Lock a surface to directly access the pixels
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	795 */
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	796 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	797 SDL_LockSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	798 {
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	799 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	800 /* 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	801 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	802 if (SDL_LockTexture
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	803 (surface->textureID, NULL, 1, &surface->pixels,
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	804 &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	805 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	806 }
782fd950bd46 Revamp of the video system in 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 if (surface->flags & SDL_RLEACCEL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	809 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	810 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	811 }
782fd950bd46 Revamp of the video system in 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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	813
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	814 /* 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	815 ++surface->locked;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	816
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	817 /* 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	818 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	819 }
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	820
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	821 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	822 * Unlock a previously locked surface
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	823 */
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	824 void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	825 SDL_UnlockSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	826 {
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	827 /* 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	828 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	829 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	830 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	831
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	832 /* 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	833 if (surface->flags & SDL_HWSURFACE) {
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	834 SDL_UnlockTexture(surface->textureID);
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	835 }
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 /* Update RLE encoded surface with new data */
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	838 if ((surface->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	839 surface->flags &= ~SDL_RLEACCEL; /* stop lying */
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	840 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	841 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	842 }
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 * Convert a surface into the specified pixel format.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	846 */
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	847 SDL_Surface *
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	848 SDL_ConvertSurface(SDL_Surface * surface,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	849 SDL_PixelFormat * format, Uint32 flags)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	850 {
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	851 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	852 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	853 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	854 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	855 SDL_Rect bounds;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	856
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	857 /* 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	858 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	859 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	860 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	861 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	862 (format->palette->colors[i].g != 0xFF) \|\|
7ae8018b2e5d Default palette entries to white, instead of black. Sam Lantinga <slouken@libsdl.org> parents: 1678 diff changeset	863 (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	864 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	865 }
782fd950bd46 Revamp of the video system in 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 if (i == format->palette->ncolors) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	867 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	868 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	869 }
782fd950bd46 Revamp of the video system in 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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	871
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	872 /* Create a new surface with the desired format */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	873 convert = SDL_CreateRGBSurface(flags,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	874 surface->w, surface->h,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	875 format->BitsPerPixel, format->Rmask,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	876 format->Gmask, format->Bmask,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	877 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	878 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	879 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	880 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	881
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	882 /* 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	883 if (format->palette && convert->format->palette) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	884 SDL_memcpy(convert->format->palette->colors,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	885 format->palette->colors,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	886 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	887 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	888 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	889
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	890 /* 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	891 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	892 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	893 /* 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	894 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	895 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	896 } 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	897 colorkey = surface->format->colorkey;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	898 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	899 }
782fd950bd46 Revamp of the video system in 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 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	902 /* 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	903 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	904 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	905 } 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	906 alpha = surface->format->alpha;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	907 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	908 }
782fd950bd46 Revamp of the video system in 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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	910
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	911 /* 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	912 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	913 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	914 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	915 bounds.h = surface->h;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	916 SDL_LowerBlit(surface, &bounds, convert, &bounds);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	917
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	918 /* 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	919 if (convert != NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	920 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	921 }
782fd950bd46 Revamp of the video system in 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 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	923 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	924 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	925 Uint8 keyR, keyG, keyB;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	926
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	927 SDL_GetRGB(colorkey, surface->format, &keyR, &keyG, &keyB);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	928 SDL_SetColorKey(convert, cflags \| (flags & SDL_RLEACCELOK),
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	929 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	930 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	931 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	932 }
782fd950bd46 Revamp of the video system in 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 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	934 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	935 if (convert != NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	936 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	937 }
782fd950bd46 Revamp of the video system in 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 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	939 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	940 } else {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	941 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	942 }
782fd950bd46 Revamp of the video system in 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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	944
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	945 /* 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	946 return (convert);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	947 }
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 * Free a surface created by the above function.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	951 */
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	952 void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	953 SDL_FreeSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	954 {
1666 6e7ec5cb83c3 The dummy video driver compiles. :) Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	955 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	956 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	957 }
782fd950bd46 Revamp of the video system in 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 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	959 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	960 }
782fd950bd46 Revamp of the video system in 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 while (surface->locked > 0) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	962 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	963 }
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	964 if (surface->flags & SDL_RLEACCEL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	965 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	966 }
782fd950bd46 Revamp of the video system in 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 if (surface->format) {
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	968 SDL_SetSurfacePalette(surface, NULL);
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	969 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	970 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	971 }
782fd950bd46 Revamp of the video system in 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 if (surface->map != NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	973 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	974 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	975 }
1672 8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	976 /* Should we destroy the texture too?
1683 396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	977 if (surface->textureID) {
396a35389351 Finished palettized display handling. Sam Lantinga <slouken@libsdl.org> parents: 1682 diff changeset	978 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	979 }
8e754b82cecc Updated SDL_Surface code for software-only access, fixed some build errors Sam Lantinga <slouken@libsdl.org> parents: 1670 diff changeset	980 */
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	981 if (surface->pixels && ((surface->flags & SDL_PREALLOC) != SDL_PREALLOC)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	982 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	983 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1666 diff changeset	984 SDL_free(surface);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	985 #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	986 --surfaces_allocated;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	987 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	988 }
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	989
782fd950bd46 Revamp of the video system in 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 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_surface.c @ 1734:f7c667ded87d SDL-1.3