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

annotate src/video/SDL_surface.c @ 3473:7bdc10624cba

This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 21 Nov 2009 07:14:21 +0000
parents	0538362b98d3
children	5543db4239e6

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
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2853 diff changeset	3 Copyright (C) 1997-2009 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"
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 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 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	37 SDL_Surface *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	38 SDL_CreateRGBSurface(Uint32 flags,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	39 int width, int height, int depth,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	40 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. 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
2807 365fe1a2aad5 The SDL_RLEACCEL flag is respected in SDL_ConvertSurface(), per the docs. Sam Lantinga <slouken@libsdl.org> parents: 2787 diff changeset	44 /* The flags are no longer used, make the compiler happy */
365fe1a2aad5 The SDL_RLEACCEL flag is respected in SDL_ConvertSurface(), per the docs. Sam Lantinga <slouken@libsdl.org> parents: 2787 diff changeset	45 flags;
365fe1a2aad5 The SDL_RLEACCEL flag is respected in SDL_ConvertSurface(), per the docs. Sam Lantinga <slouken@libsdl.org> parents: 2787 diff changeset	46
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	47 /* Allocate the surface */
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	48 surface = (SDL_Surface ) SDL_calloc(1, sizeof(surface));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	49 if (surface == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	50 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	51 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	52 }
940 bb1588ebe47b Date: Sat, 10 Jul 2004 21:02:33 +0200 Sam Lantinga <slouken@libsdl.org> parents: 915 diff changeset	53
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	54 surface->format = SDL_AllocFormat(depth, Rmask, Gmask, Bmask, Amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	55 if (!surface->format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	56 SDL_FreeSurface(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	57 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	58 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	59 surface->w = width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	60 surface->h = height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	61 surface->pitch = SDL_CalculatePitch(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	62 SDL_SetClipRect(surface, NULL);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	63
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	64 if (surface->format->BitsPerPixel <= 8) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	65 SDL_Palette *palette =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	66 SDL_AllocPalette((1 << surface->format->BitsPerPixel));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	67 if (!palette) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	68 SDL_FreeSurface(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	69 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	70 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	71 if (Rmask \|\| Bmask \|\| Gmask) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	72 const SDL_PixelFormat *format = surface->format;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	73
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	74 /* create palette according to masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	75 int i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	76 int Rm = 0, Gm = 0, Bm = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	77 int Rw = 0, Gw = 0, Bw = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	79 if (Rmask) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	80 Rw = 8 - format->Rloss;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	81 for (i = format->Rloss; i > 0; i -= Rw)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	82 Rm \|= 1 << i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	83 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	84 if (Gmask) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	85 Gw = 8 - format->Gloss;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	86 for (i = format->Gloss; i > 0; i -= Gw)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	87 Gm \|= 1 << i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	88 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	89 if (Bmask) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	90 Bw = 8 - format->Bloss;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	91 for (i = format->Bloss; i > 0; i -= Bw)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	92 Bm \|= 1 << i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	93 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	94 for (i = 0; i < palette->ncolors; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	95 int r, g, b;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	96 r = (i & Rmask) >> format->Rshift;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	97 r = (r << format->Rloss) \| ((r * Rm) >> Rw);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	98 palette->colors[i].r = r;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	99
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	100 g = (i & Gmask) >> format->Gshift;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	101 g = (g << format->Gloss) \| ((g * Gm) >> Gw);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	102 palette->colors[i].g = g;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	103
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	104 b = (i & Bmask) >> format->Bshift;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	105 b = (b << format->Bloss) \| ((b * Bm) >> Bw);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	106 palette->colors[i].b = b;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	107 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	108 } else if (palette->ncolors == 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	109 /* Create a black and white bitmap palette */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	110 palette->colors[0].r = 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	111 palette->colors[0].g = 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	112 palette->colors[0].b = 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	113 palette->colors[1].r = 0x00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	114 palette->colors[1].g = 0x00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	115 palette->colors[1].b = 0x00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	116 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	117 SDL_SetSurfacePalette(surface, palette);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	118 SDL_FreePalette(palette);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	119 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	120
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	121 /* Get the pixels */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	122 if (surface->w && surface->h) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	123 surface->pixels = SDL_malloc(surface->h * surface->pitch);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	124 if (!surface->pixels) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	125 SDL_FreeSurface(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	126 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	127 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	128 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	129 /* This is important for bitmaps */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	130 SDL_memset(surface->pixels, 0, surface->h * surface->pitch);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	131 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	133 /* Allocate an empty mapping */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	134 surface->map = SDL_AllocBlitMap();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	135 if (!surface->map) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	136 SDL_FreeSurface(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	137 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	138 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	139 SDL_FormatChanged(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	140
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	141 /* By default surface with an alpha mask are set up for blending */
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	142 if (Amask) {
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	143 SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	144 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	145
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	146 /* The surface is ready to go */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	147 surface->refcount = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148 #ifdef CHECK_LEAKS
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	149 ++surfaces_allocated;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	151 return surface;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	153
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	154 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	155 * Create an RGB surface from an existing memory buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	157 SDL_Surface *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	158 SDL_CreateRGBSurfaceFrom(void *pixels,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	159 int width, int height, int depth, int pitch,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	160 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	161 Uint32 Amask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	163 SDL_Surface *surface;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	164
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	165 surface =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	166 SDL_CreateRGBSurface(0, 0, 0, depth, Rmask, Gmask, Bmask, Amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	167 if (surface != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	168 surface->flags \|= SDL_PREALLOC;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	169 surface->pixels = pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	170 surface->w = width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	171 surface->h = height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	172 surface->pitch = pitch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	173 SDL_SetClipRect(surface, NULL);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	174 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	175 return surface;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	176 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	177
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	178 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	179 SDL_SurfacePaletteChanged(void userdata, SDL_Palette palette)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	180 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	181 SDL_Surface surface = (SDL_Surface ) userdata;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	182
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	183 SDL_FormatChanged(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	184
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	185 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	186 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	187
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	188 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	189 SDL_SetSurfacePalette(SDL_Surface * surface, SDL_Palette * palette)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	190 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	191 if (!surface \|\| !surface->format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	192 SDL_SetError("SDL_SetSurfacePalette() passed a NULL surface");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	193 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	194 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	195
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	196 if (palette && palette->ncolors != (1 << surface->format->BitsPerPixel)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	197 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	198 ("SDL_SetSurfacePalette() passed a palette that doesn't match the surface format");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	199 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	200 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	201
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	202 if (surface->format->palette == palette) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	203 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	204 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	205
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	206 if (surface->format->palette) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	207 SDL_DelPaletteWatch(surface->format->palette,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	208 SDL_SurfacePaletteChanged, surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	209 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	210
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	211 surface->format->palette = palette;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	212
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	213 if (surface->format->palette) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	214 SDL_AddPaletteWatch(surface->format->palette,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	215 SDL_SurfacePaletteChanged, surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	216 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	217 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	218 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	219
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	220 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	221 SDL_SetSurfaceRLE(SDL_Surface * surface, int flag)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	223 int flags;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	225 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	226 return -1;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	227 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	229 flags = surface->map->info.flags;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	230 if (flag) {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	231 surface->map->info.flags \|= SDL_COPY_RLE_DESIRED;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	232 } else {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	233 surface->map->info.flags &= ~SDL_COPY_RLE_DESIRED;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	234 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	235 if (surface->map->info.flags != flags) {
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	236 SDL_InvalidateMap(surface->map);
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	237 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	238 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	239 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	240
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	241 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	242 SDL_SetColorKey(SDL_Surface * surface, Uint32 flag, Uint32 key)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243 {
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	244 int flags;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	245
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	246 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	247 return -1;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	248 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	249
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	250 if (flag & SDL_RLEACCEL) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	251 SDL_SetSurfaceRLE(surface, 1);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	252 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	254 flags = surface->map->info.flags;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	255 if (flag) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	256 surface->map->info.flags \|= SDL_COPY_COLORKEY;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	257 surface->map->info.colorkey = key;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	258 } else {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	259 surface->map->info.flags &= ~SDL_COPY_COLORKEY;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	260 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	261 if (surface->map->info.flags != flags) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	262 SDL_InvalidateMap(surface->map);
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	263 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	264
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	265 /* Compatibility mode */
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	266 if (surface->map->info.flags & SDL_COPY_COLORKEY) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	267 surface->flags \|= SDL_SRCCOLORKEY;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	268 } else {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	269 surface->flags &= ~SDL_SRCCOLORKEY;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	270 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	271
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	272 return 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	273 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	274
3103 7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	275 int
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	276 SDL_GetColorKey(SDL_Surface * surface, Uint32 * key)
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	277 {
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	278 if (!surface) {
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	279 return -1;
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	280 }
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	281
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	282 if (!(surface->map->info.flags & SDL_COPY_COLORKEY)) {
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	283 return -1;
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	284 }
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	285
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	286 if (key) {
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	287 *key = surface->map->info.colorkey;
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	288 }
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	289 return 0;
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	290 }
7be21a78777e Added SDL_GetColorKey() Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	291
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	292 /* This is a fairly slow function to switch from colorkey to alpha */
2787 93764fe8601a It turns out both the software and the OpenGL renderer had the same problem. Sam Lantinga <slouken@libsdl.org> parents: 2786 diff changeset	293 static void
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	294 SDL_ConvertColorkeyToAlpha(SDL_Surface * surface)
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	295 {
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	296 int x, y;
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	297
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	298 if (!surface) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	299 return;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	300 }
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	301
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	302 if (!(surface->map->info.flags & SDL_COPY_COLORKEY) \|\|
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	303 !surface->format->Amask) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	304 return;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	305 }
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	306
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	307 SDL_LockSurface(surface);
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	308
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	309 switch (surface->format->BytesPerPixel) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	310 case 2:
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	311 {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	312 Uint16 row, spot;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	313 Uint16 ckey = (Uint16) surface->map->info.colorkey;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	314 Uint16 mask = (Uint16) (~surface->format->Amask);
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	315
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	316 row = (Uint16 *) surface->pixels;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	317 for (y = surface->h; y--;) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	318 spot = row;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	319 for (x = surface->w; x--;) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	320 if (*spot == ckey) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	321 *spot &= mask;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	322 }
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	323 ++spot;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	324 }
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	325 row += surface->pitch / 2;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	326 }
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	327 }
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	328 break;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	329 case 3:
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	330 /* FIXME */
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	331 break;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	332 case 4:
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	333 {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	334 Uint32 row, spot;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	335 Uint32 ckey = surface->map->info.colorkey;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	336 Uint32 mask = ~surface->format->Amask;
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	337
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	338 row = (Uint32 *) surface->pixels;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	339 for (y = surface->h; y--;) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	340 spot = row;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	341 for (x = surface->w; x--;) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	342 if (*spot == ckey) {
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	343 *spot &= mask;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	344 }
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	345 ++spot;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	346 }
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	347 row += surface->pitch / 4;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	348 }
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	349 }
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	350 break;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	351 }
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	352
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	353 SDL_UnlockSurface(surface);
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	354
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2785 diff changeset	355 SDL_SetColorKey(surface, 0, 0);
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	356 SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
2785 fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	357 }
fa1095d42a5b Fixed bug with converting colorkey surface to texture Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	358
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	359 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	360 SDL_SetSurfaceColorMod(SDL_Surface * surface, Uint8 r, Uint8 g, Uint8 b)
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	361 {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	362 int flags;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	363
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	364 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	365 return -1;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	366 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	367
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	368 surface->map->info.r = r;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	369 surface->map->info.g = g;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	370 surface->map->info.b = b;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	371
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	372 flags = surface->map->info.flags;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	373 if (r != 0xFF \|\| g != 0xFF \|\| b != 0xFF) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	374 surface->map->info.flags \|= SDL_COPY_MODULATE_COLOR;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	375 } else {
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	376 surface->map->info.flags &= ~SDL_COPY_MODULATE_COLOR;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	377 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	378 if (surface->map->info.flags != flags) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	379 SDL_InvalidateMap(surface->map);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	380 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	381 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	382 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	383
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	384
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	385 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	386 SDL_GetSurfaceColorMod(SDL_Surface * surface, Uint8 * r, Uint8 * g, Uint8 * b)
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	387 {
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	388 if (!surface) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	389 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	390 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	391
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	392 if (r) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	393 *r = surface->map->info.r;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	394 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	395 if (g) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	396 *g = surface->map->info.g;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	397 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	398 if (b) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	399 *b = surface->map->info.b;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	400 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	401 return 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	402 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	403
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	404 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	405 SDL_SetSurfaceAlphaMod(SDL_Surface * surface, Uint8 alpha)
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	406 {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	407 int flags;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	408
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	409 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	410 return -1;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	411 }
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	412
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	413 surface->map->info.a = alpha;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	414
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	415 flags = surface->map->info.flags;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	416 if (alpha != 0xFF) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	417 surface->map->info.flags \|= SDL_COPY_MODULATE_ALPHA;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	418 } else {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	419 surface->map->info.flags &= ~SDL_COPY_MODULATE_ALPHA;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	420 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	421 if (surface->map->info.flags != flags) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	422 SDL_InvalidateMap(surface->map);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	423 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	424 return 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	425 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	426
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	427 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	428 SDL_GetSurfaceAlphaMod(SDL_Surface * surface, Uint8 * alpha)
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	429 {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	430 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	431 return -1;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	432 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	433
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	434 if (alpha) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	435 *alpha = surface->map->info.a;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	436 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	437 return 0;
431 41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha Sam Lantinga <slouken@libsdl.org> parents: 422 diff changeset	438 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	439
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	440 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	441 SDL_SetSurfaceBlendMode(SDL_Surface * surface, int blendMode)
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	442 {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	443 int flags, status;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	444
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	445 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	446 return -1;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	447 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	448
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	449 status = 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	450 flags = surface->map->info.flags;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	451 surface->map->info.flags &=
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	452 ~(SDL_COPY_MASK \| SDL_COPY_BLEND \| SDL_COPY_ADD \| SDL_COPY_MOD);
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	453 switch (blendMode) {
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	454 case SDL_BLENDMODE_NONE:
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	455 break;
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	456 case SDL_BLENDMODE_MASK:
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	457 surface->map->info.flags \|= SDL_COPY_MASK;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	458 break;
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	459 case SDL_BLENDMODE_BLEND:
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	460 surface->map->info.flags \|= SDL_COPY_BLEND;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	461 break;
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	462 case SDL_BLENDMODE_ADD:
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	463 surface->map->info.flags \|= SDL_COPY_ADD;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	464 break;
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	465 case SDL_BLENDMODE_MOD:
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	466 surface->map->info.flags \|= SDL_COPY_MOD;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	467 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	468 default:
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	469 SDL_Unsupported();
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	470 status = -1;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	471 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	472 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	473
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	474 if (surface->map->info.flags != flags) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	475 SDL_InvalidateMap(surface->map);
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	476 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	477
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	478 /* Compatibility mode */
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	479 if (surface->map->info.flags & SDL_COPY_BLEND) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	480 surface->flags \|= SDL_SRCALPHA;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	481 } else {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	482 surface->flags &= ~SDL_SRCALPHA;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	483 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	484
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	485 return status;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	486 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	487
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	488 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	489 SDL_GetSurfaceBlendMode(SDL_Surface * surface, int *blendMode)
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	490 {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	491 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	492 return -1;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	493 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	494
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	495 if (!blendMode) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	496 return 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	497 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	498
3013 8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	499 switch (surface->map->
8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	500 info.flags & (SDL_COPY_MASK \| SDL_COPY_BLEND \| SDL_COPY_ADD \|
8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	501 SDL_COPY_MOD)) {
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	502 case SDL_COPY_MASK:
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	503 *blendMode = SDL_BLENDMODE_MASK;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	504 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	505 case SDL_COPY_BLEND:
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	506 *blendMode = SDL_BLENDMODE_BLEND;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	507 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	508 case SDL_COPY_ADD:
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	509 *blendMode = SDL_BLENDMODE_ADD;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	510 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	511 case SDL_COPY_MOD:
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	512 *blendMode = SDL_BLENDMODE_MOD;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	513 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	514 default:
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	515 *blendMode = SDL_BLENDMODE_NONE;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	516 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	517 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	518 return 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	519 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	520
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	521 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	522 SDL_SetSurfaceScaleMode(SDL_Surface * surface, int scaleMode)
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	523 {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	524 int flags, status;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	525
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	526 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	527 return -1;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	528 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	529
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	530 status = 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	531 flags = surface->map->info.flags;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	532 surface->map->info.flags &= ~(SDL_COPY_NEAREST);
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	533 switch (scaleMode) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	534 case SDL_TEXTURESCALEMODE_NONE:
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	535 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	536 case SDL_TEXTURESCALEMODE_FAST:
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	537 surface->map->info.flags \|= SDL_COPY_NEAREST;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	538 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	539 case SDL_TEXTURESCALEMODE_SLOW:
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	540 case SDL_TEXTURESCALEMODE_BEST:
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	541 SDL_Unsupported();
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	542 surface->map->info.flags \|= SDL_COPY_NEAREST;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	543 status = -1;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	544 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	545 default:
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	546 SDL_Unsupported();
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	547 status = -1;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	548 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	549 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	550
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	551 if (surface->map->info.flags != flags) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	552 SDL_InvalidateMap(surface->map);
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	553 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	554 return status;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	555 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	556
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	557 int
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	558 SDL_GetSurfaceScaleMode(SDL_Surface * surface, int *scaleMode)
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	559 {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	560 if (!surface) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	561 return -1;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	562 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	563
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	564 if (!scaleMode) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	565 return 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	566 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	567
2853 6258fa7cd300 Fixed picking blit function when RLE fails Sam Lantinga <slouken@libsdl.org> parents: 2824 diff changeset	568 switch (surface->map->info.flags & SDL_COPY_NEAREST) {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	569 case SDL_COPY_NEAREST:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	570 *scaleMode = SDL_TEXTURESCALEMODE_FAST;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	571 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	572 default:
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	573 *scaleMode = SDL_TEXTURESCALEMODE_NONE;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	574 break;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	575 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	576 return 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	577 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	578
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	579 SDL_bool
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	580 SDL_SetClipRect(SDL_Surface * surface, const SDL_Rect * rect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	581 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	582 SDL_Rect full_rect;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	583
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	584 /* Don't do anything if there's no surface to act on */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	585 if (!surface) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	586 return SDL_FALSE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	587 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	588
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	589 /* Set up the full surface rectangle */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	590 full_rect.x = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	591 full_rect.y = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	592 full_rect.w = surface->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	593 full_rect.h = surface->h;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	594
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	595 /* Set the clipping rectangle */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	596 if (!rect) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	597 surface->clip_rect = full_rect;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	598 return 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	599 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	600 return SDL_IntersectRect(rect, &full_rect, &surface->clip_rect);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	601 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	602
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	603 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	604 SDL_GetClipRect(SDL_Surface * surface, SDL_Rect * rect)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	605 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	606 if (surface && rect) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	607 *rect = surface->clip_rect;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	608 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	609 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	610
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	611 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	612 * Set up a blit between two surfaces -- split into three parts:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	613 * The upper part, SDL_UpperBlit(), performs clipping and rectangle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	614 * verification. The lower part is a pointer to a low level
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	615 * accelerated blitting function.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	616 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	617 * These parts are separated out and each used internally by this
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	618 * library in the optimimum places. They are exported so that if
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	619 * you know exactly what you are doing, you can optimize your code
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	620 * by calling the one(s) you need.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	621 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	622 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	623 SDL_LowerBlit(SDL_Surface * src, SDL_Rect * srcrect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	624 SDL_Surface * dst, SDL_Rect * dstrect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	625 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	626 /* Check to make sure the blit mapping is valid */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	627 if ((src->map->dst != dst) \|\|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	628 (src->map->dst->format_version != src->map->format_version)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	629 if (SDL_MapSurface(src, dst) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	630 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	631 }
2328 91e601d9df8b re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being Bob Pendleton <bob@pendleton.com> parents: 2267 diff changeset	632 /* just here for debugging */
2329 c1a390f6a819 ran make indent Bob Pendleton <bob@pendleton.com> parents: 2328 diff changeset	633 /* printf */
c1a390f6a819 ran make indent Bob Pendleton <bob@pendleton.com> parents: 2328 diff changeset	634 /* ("src = 0x%08X src->flags = %08X src->map->info.flags = %08x\ndst = 0x%08X dst->flags = %08X dst->map->info.flags = %08X\nsrc->map->blit = 0x%08x\n", */
c1a390f6a819 ran make indent Bob Pendleton <bob@pendleton.com> parents: 2328 diff changeset	635 /* src, dst->flags, src->map->info.flags, dst, dst->flags, */
c1a390f6a819 ran make indent Bob Pendleton <bob@pendleton.com> parents: 2328 diff changeset	636 /* dst->map->info.flags, src->map->blit); */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	637 }
2257 340942cfda48 Moved the colorkey and per-surface alpha into the blit info, Sam Lantinga <slouken@libsdl.org> parents: 2253 diff changeset	638 return (src->map->blit(src, srcrect, dst, dstrect));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	639 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	640
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	641
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	642 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	643 SDL_UpperBlit(SDL_Surface * src, SDL_Rect * srcrect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	644 SDL_Surface * dst, SDL_Rect * dstrect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	645 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	646 SDL_Rect fulldst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	647 int srcx, srcy, w, h;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	648
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	649 /* Make sure the surfaces aren't locked */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	650 if (!src \|\| !dst) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	651 SDL_SetError("SDL_UpperBlit: passed a NULL surface");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	652 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	653 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	654 if (src->locked \|\| dst->locked) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	655 SDL_SetError("Surfaces must not be locked during blit");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	656 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	657 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	658
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	659 /* If the destination rectangle is NULL, use the entire dest surface */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	660 if (dstrect == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	661 fulldst.x = fulldst.y = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	662 dstrect = &fulldst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	663 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	664
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	665 /* clip the source rectangle to the source surface */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	666 if (srcrect) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	667 int maxw, maxh;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	668
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	669 srcx = srcrect->x;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	670 w = srcrect->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	671 if (srcx < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	672 w += srcx;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	673 dstrect->x -= srcx;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	674 srcx = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	675 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	676 maxw = src->w - srcx;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	677 if (maxw < w)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	678 w = maxw;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	679
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	680 srcy = srcrect->y;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	681 h = srcrect->h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	682 if (srcy < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	683 h += srcy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	684 dstrect->y -= srcy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	685 srcy = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	686 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	687 maxh = src->h - srcy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	688 if (maxh < h)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	689 h = maxh;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	690
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	691 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	692 srcx = srcy = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	693 w = src->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	694 h = src->h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	695 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	696
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	697 /* clip the destination rectangle against the clip rectangle */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	698 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	699 SDL_Rect *clip = &dst->clip_rect;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	700 int dx, dy;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	701
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	702 dx = clip->x - dstrect->x;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	703 if (dx > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	704 w -= dx;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	705 dstrect->x += dx;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	706 srcx += dx;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	707 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	708 dx = dstrect->x + w - clip->x - clip->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	709 if (dx > 0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	710 w -= dx;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	711
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	712 dy = clip->y - dstrect->y;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	713 if (dy > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	714 h -= dy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	715 dstrect->y += dy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	716 srcy += dy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	717 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	718 dy = dstrect->y + h - clip->y - clip->h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	719 if (dy > 0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	720 h -= dy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	721 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	722
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	723 if (w > 0 && h > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	724 SDL_Rect sr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	725 sr.x = srcx;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	726 sr.y = srcy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	727 sr.w = dstrect->w = w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	728 sr.h = dstrect->h = h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	729 return SDL_LowerBlit(src, &sr, dst, dstrect);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	730 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	731 dstrect->w = dstrect->h = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	732 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	733 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	734
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	735 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	736 * Lock a surface to directly access the pixels
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	737 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	738 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	739 SDL_LockSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	740 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	741 if (!surface->locked) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	742 /* Perform the lock */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	743 if (surface->flags & SDL_RLEACCEL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	744 SDL_UnRLESurface(surface, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	745 surface->flags \|= SDL_RLEACCEL; /* save accel'd state */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	746 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	747 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	748
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	749 /* Increment the surface lock count, for recursive locks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	750 ++surface->locked;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	751
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	752 /* Ready to go.. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	753 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	754 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	755
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	756 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	757 * Unlock a previously locked surface
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	758 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	759 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	760 SDL_UnlockSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	761 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	762 /* Only perform an unlock if we are locked */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	763 if (!surface->locked \|\| (--surface->locked > 0)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	764 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	765 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	766
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	767 /* Update RLE encoded surface with new data */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	768 if ((surface->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	769 surface->flags &= ~SDL_RLEACCEL; /* stop lying */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	770 SDL_RLESurface(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	771 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	772 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	773
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	774 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	775 * Convert a surface into the specified pixel format.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	776 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	777 SDL_Surface *
2807 365fe1a2aad5 The SDL_RLEACCEL flag is respected in SDL_ConvertSurface(), per the docs. Sam Lantinga <slouken@libsdl.org> parents: 2787 diff changeset	778 SDL_ConvertSurface(SDL_Surface * surface, SDL_PixelFormat * format,
365fe1a2aad5 The SDL_RLEACCEL flag is respected in SDL_ConvertSurface(), per the docs. Sam Lantinga <slouken@libsdl.org> parents: 2787 diff changeset	779 Uint32 flags)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	780 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	781 SDL_Surface *convert;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	782 Uint32 copy_flags;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	783 SDL_Rect bounds;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	784
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	785 /* Check for empty destination palette! (results in empty image) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	786 if (format->palette != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	787 int i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	788 for (i = 0; i < format->palette->ncolors; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	789 if ((format->palette->colors[i].r != 0xFF) \|\|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	790 (format->palette->colors[i].g != 0xFF) \|\|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	791 (format->palette->colors[i].b != 0xFF))
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	792 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	793 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	794 if (i == format->palette->ncolors) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	795 SDL_SetError("Empty destination palette");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	796 return (NULL);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	797 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	798 }
264 c9cd3b564e4b * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	799
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	800 /* Create a new surface with the desired format */
2807 365fe1a2aad5 The SDL_RLEACCEL flag is respected in SDL_ConvertSurface(), per the docs. Sam Lantinga <slouken@libsdl.org> parents: 2787 diff changeset	801 convert = SDL_CreateRGBSurface(flags, surface->w, surface->h,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	802 format->BitsPerPixel, format->Rmask,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	803 format->Gmask, format->Bmask,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	804 format->Amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	805 if (convert == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	806 return (NULL);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	807 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	808
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	809 /* Copy the palette if any */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	810 if (format->palette && convert->format->palette) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	811 SDL_memcpy(convert->format->palette->colors,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	812 format->palette->colors,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	813 format->palette->ncolors * sizeof(SDL_Color));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	814 convert->format->palette->ncolors = format->palette->ncolors;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	815 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	816
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	817 /* Save the original copy flags */
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	818 copy_flags = surface->map->info.flags;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	819 surface->map->info.flags = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	820
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	821 /* Copy over the image data */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	822 bounds.x = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	823 bounds.y = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	824 bounds.w = surface->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	825 bounds.h = surface->h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	826 SDL_LowerBlit(surface, &bounds, convert, &bounds);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	827
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	828 /* Clean up the original surface, and update converted surface */
2824 4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	829 convert->map->info.r = surface->map->info.r;
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	830 convert->map->info.g = surface->map->info.g;
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	831 convert->map->info.b = surface->map->info.b;
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	832 convert->map->info.a = surface->map->info.a;
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	833 convert->map->info.flags =
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	834 (copy_flags &
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	835 ~(SDL_COPY_COLORKEY \| SDL_COPY_BLEND
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	836 \| SDL_COPY_RLE_DESIRED \| SDL_COPY_RLE_COLORKEY \|
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	837 SDL_COPY_RLE_ALPHAKEY));
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	838 surface->map->info.flags = copy_flags;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	839 if (copy_flags & SDL_COPY_COLORKEY) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	840 Uint8 keyR, keyG, keyB, keyA;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	841
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	842 SDL_GetRGBA(surface->map->info.colorkey, surface->format, &keyR,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	843 &keyG, &keyB, &keyA);
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	844 SDL_SetColorKey(convert, 1,
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	845 SDL_MapRGBA(convert->format, keyR, keyG, keyB, keyA));
2824 4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	846 /* This is needed when converting for 3D texture upload */
2787 93764fe8601a It turns out both the software and the OpenGL renderer had the same problem. Sam Lantinga <slouken@libsdl.org> parents: 2786 diff changeset	847 SDL_ConvertColorkeyToAlpha(convert);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	848 }
2824 4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	849 SDL_SetClipRect(convert, &surface->clip_rect);
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	850
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	851 /* Enable alpha blending by default if the new surface has an
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	852 * alpha channel or alpha modulation */
2824 4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	853 if ((surface->format->Amask && format->Amask) \|\|
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	854 (copy_flags & SDL_COPY_MODULATE_ALPHA)) {
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	855 SDL_SetSurfaceBlendMode(convert, SDL_BLENDMODE_BLEND);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	856 }
2824 4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	857 if ((copy_flags & SDL_COPY_RLE_DESIRED) \|\| (flags & SDL_RLEACCEL)) {
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	858 SDL_SetSurfaceRLE(convert, SDL_RLEACCEL);
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	859 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	860
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	861 /* We're ready to go! */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	862 return (convert);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	863 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	864
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	865 /*
3434 147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	866 * Create a surface on the stack for quick blit operations
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	867 */
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	868 static __inline__ SDL_bool
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	869 SDL_CreateSurfaceOnStack(int width, int height, Uint32 pixel_format,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	870 void * pixels, int pitch, SDL_Surface * surface,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	871 SDL_PixelFormat * format, SDL_BlitMap * blitmap)
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	872 {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	873 int bpp;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	874 Uint32 Rmask, Gmask, Bmask, Amask;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	875
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	876 if (!SDL_PixelFormatEnumToMasks(pixel_format,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	877 &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	878 return SDL_FALSE;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	879 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	880 if (bpp <= 8) {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	881 SDL_SetError("Indexed pixel formats not supported");
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	882 return SDL_FALSE;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	883 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	884
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	885 SDL_zerop(surface);
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	886 surface->flags = SDL_PREALLOC;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	887 surface->format = SDL_InitFormat(format, bpp, Rmask, Gmask, Bmask, Amask);
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	888 surface->pixels = pixels;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	889 surface->w = width;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	890 surface->h = height;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	891 surface->pitch = pitch;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	892 /* We don't actually need to set up the clip rect for our purposes */
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	893 /SDL_SetClipRect(surface, NULL);/
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	894
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	895 /* Allocate an empty mapping */
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	896 SDL_zerop(blitmap);
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	897 blitmap->info.r = 0xFF;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	898 blitmap->info.g = 0xFF;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	899 blitmap->info.b = 0xFF;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	900 blitmap->info.a = 0xFF;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	901 surface->map = blitmap;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	902 SDL_FormatChanged(surface);
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	903
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	904 /* The surface is ready to go */
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	905 surface->refcount = 1;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	906 return SDL_TRUE;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	907 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	908
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	909 /*
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	910 * Copy a block of pixels of one format to another format
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	911 */
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	912 int SDL_ConvertPixels(int width, int height,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	913 Uint32 src_format, const void * src, int src_pitch,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	914 Uint32 dst_format, void * dst, int dst_pitch)
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	915 {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	916 SDL_Surface src_surface, dst_surface;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	917 SDL_PixelFormat src_fmt, dst_fmt;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	918 SDL_BlitMap src_blitmap, dst_blitmap;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	919 SDL_Rect rect;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	920
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	921 /* Fast path for same format copy */
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	922 if (src_format == dst_format) {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	923 int bpp;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	924
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	925 if (SDL_ISPIXELFORMAT_FOURCC(src_format)) {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	926 switch (src_format) {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	927 case SDL_PIXELFORMAT_YV12:
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	928 case SDL_PIXELFORMAT_IYUV:
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	929 case SDL_PIXELFORMAT_YUY2:
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	930 case SDL_PIXELFORMAT_UYVY:
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	931 case SDL_PIXELFORMAT_YVYU:
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	932 bpp = 2;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	933 default:
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	934 SDL_SetError("Unknown FOURCC pixel format");
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	935 return -1;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	936 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	937 } else {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	938 bpp = SDL_BYTESPERPIXEL(src_format);
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	939 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	940 width *= bpp;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	941
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	942 while (height-- > 0) {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	943 SDL_memcpy(dst, src, width);
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	944 src = (Uint8*)src + src_pitch;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	945 dst = (Uint8*)dst + dst_pitch;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	946 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	947 return SDL_TRUE;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	948 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	949
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	950 if (!SDL_CreateSurfaceOnStack(width, height, src_format, (void*)src,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	951 src_pitch,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	952 &src_surface, &src_fmt, &src_blitmap)) {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	953 return -1;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	954 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	955 if (!SDL_CreateSurfaceOnStack(width, height, dst_format, dst, dst_pitch,
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	956 &dst_surface, &dst_fmt, &dst_blitmap)) {
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	957 return -1;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	958 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	959
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	960 /* Set up the rect and go! */
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	961 rect.x = 0;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	962 rect.y = 0;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	963 rect.w = width;
3436 0538362b98d3 Fixed memory corruption in SW_RenderReadPixels() Sam Lantinga <slouken@libsdl.org> parents: 3434 diff changeset	964 rect.h = height;
3434 147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	965 return SDL_LowerBlit(&src_surface, &rect, &dst_surface, &rect);
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	966 }
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	967
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	968 /*
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	969 * Free a surface created by the above function.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	970 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	971 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	972 SDL_FreeSurface(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	973 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	974 if (surface == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	975 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	976 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	977 if (--surface->refcount > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	978 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	979 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	980 while (surface->locked > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	981 SDL_UnlockSurface(surface);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	982 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	983 if (surface->flags & SDL_RLEACCEL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	984 SDL_UnRLESurface(surface, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	985 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	986 if (surface->format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	987 SDL_SetSurfacePalette(surface, NULL);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	988 SDL_FreeFormat(surface->format);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	989 surface->format = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	990 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	991 if (surface->map != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	992 SDL_FreeBlitMap(surface->map);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	993 surface->map = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	994 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	995 if (surface->pixels && ((surface->flags & SDL_PREALLOC) != SDL_PREALLOC)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	996 SDL_free(surface->pixels);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	997 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	998 SDL_free(surface);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	999 #ifdef CHECK_LEAKS
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	1000 --surfaces_allocated;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1001 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1002 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	1003
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	1004 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_surface.c @ 3473:7bdc10624cba