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

annotate src/video/SDL_surface.c @ 3434:147d6ef5be03

Added a utility function to convert blocks of pixels

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 15 Nov 2009 09:21:46 +0000
parents	7be21a78777e
children	0538362b98d3

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;
147d6ef5be03 Added a utility function to convert blocks of pixels Sam Lantinga <slouken@libsdl.org> parents: 3103 diff changeset	964 rect.h = width;
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 @ 3434:147d6ef5be03