sdl-ios-xcode: src/video/SDL

annotate src/video/SDL_bmp.c @ 3024:1a08749aebce

Add SDL_LoadICO_RW to SDL. Loads best quality icon from *.ico file.

author	Couriersud <couriersud@arcor.de>
date	Sun, 11 Jan 2009 23:56:19 +0000
parents	502adab079a4
children	69ab1117dd3b

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: 2851 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: 1012 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: 1012 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: 1012 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: 1012 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: 1012 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: 1012 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: 0 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: 1361 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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 Code to load and save surfaces in Windows BMP format.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 Why support BMP format? Well, it's a native format for Windows, and
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 most image processing programs can read and write it. It would be nice
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 to be able to have at least one image format that we can natively load
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 and save, and since PNG is so complex that it would bloat the library,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 BMP is a good alternative.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 This code currently supports Win32 DIBs in uncompressed 8 and 24 bpp.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 #include "SDL_video.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 #include "SDL_endian.h"
2823 15e1dd1fff78 Added missing header Sam Lantinga <slouken@libsdl.org> parents: 2807 diff changeset	38 #include "SDL_pixels_c.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 /* Compression encodings for BMP files */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 #ifndef BI_RGB
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42 #define BI_RGB 0
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43 #define BI_RLE8 1
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44 #define BI_RLE4 2
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45 #define BI_BITFIELDS 3
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48
3024 1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	49 static Uint8
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	50 SDL_Read8(SDL_RWops * src)
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	51 {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	52 Uint8 value;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	53
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	54 SDL_RWread(src, &value, 1, 1);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	55 return (value);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	56 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	57
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	58 SDL_Surface *
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	59 SDL_LoadICO_RW(SDL_RWops * src, int freesrc)
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	60 {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	61 int was_error;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	62 long fp_offset;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	63 int bmpPitch;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	64 int i, pad;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	65 SDL_Surface *surface;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	66 Uint32 Rmask;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	67 Uint32 Gmask;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	68 Uint32 Bmask;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	69 Uint8 *bits;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	70 int ExpandBMP;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	71 int maxCol = 0;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	72 int icoOfs = 0;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	73 Uint32 palette[256];
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	74
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	75 /* The Win32 ICO file header (14 bytes) */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	76 Uint16 bfReserved;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	77 Uint16 bfType;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	78 Uint16 bfCount;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	79
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	80 /* The Win32 BITMAPINFOHEADER struct (40 bytes) */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	81 Uint32 biSize;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	82 Sint32 biWidth;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	83 Sint32 biHeight;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	84 Uint16 biPlanes;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	85 Uint16 biBitCount;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	86 Uint32 biCompression;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	87 Uint32 biSizeImage;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	88 Sint32 biXPelsPerMeter;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	89 Sint32 biYPelsPerMeter;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	90 Uint32 biClrUsed;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	91 Uint32 biClrImportant;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	92
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	93 /* Make sure we are passed a valid data source */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	94 surface = NULL;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	95 was_error = 0;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	96 if (src == NULL) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	97 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	98 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	99 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	100
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	101 /* Read in the ICO file header */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	102 fp_offset = SDL_RWtell(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	103 SDL_ClearError();
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	104
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	105 bfReserved = SDL_ReadLE16(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	106 bfType = SDL_ReadLE16(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	107 bfCount = SDL_ReadLE16(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	108 if ((bfType != 1 && bfType != 2) \|\| (bfCount == 0)) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	109 SDL_SetError("File is not a Windows ICO file");
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	110 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	111 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	112 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	113
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	114 /* Read the Win32 Icon Directory */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	115 for (i = 0; i < bfCount; i++) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	116 /* Icon Directory Entries */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	117 int bWidth = SDL_Read8(src); /* Uint8, but 0 = 256 ! */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	118 int bHeight = SDL_Read8(src); /* Uint8, but 0 = 256 ! */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	119 int bColorCount = SDL_Read8(src); /* Uint8, but 0 = 256 ! */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	120 Uint8 bReserved = SDL_Read8(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	121 Uint16 wPlanes = SDL_ReadLE16(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	122 Uint16 wBitCount = SDL_ReadLE16(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	123 Uint32 dwBytesInRes = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	124 Uint32 dwImageOffset = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	125
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	126 if (!bWidth)
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	127 bWidth = 256;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	128 if (!bHeight)
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	129 bHeight = 256;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	130 if (!bColorCount)
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	131 bColorCount = 256;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	132
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	133 //printf("%dx%d@%d - %08x\n", bWidth, bHeight, bColorCount, dwImageOffset);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	134 if (bColorCount > maxCol) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	135 maxCol = bColorCount;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	136 icoOfs = dwImageOffset;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	137 //printf("marked\n");
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	138 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	139 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	140
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	141 /* Advance to the DIB Data */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	142 if (SDL_RWseek(src, icoOfs, RW_SEEK_SET) < 0) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	143 SDL_Error(SDL_EFSEEK);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	144 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	145 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	146 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	147
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	148 /* Read the Win32 BITMAPINFOHEADER */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	149 biSize = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	150 if (biSize == 40) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	151 biWidth = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	152 biHeight = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	153 biPlanes = SDL_ReadLE16(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	154 biBitCount = SDL_ReadLE16(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	155 biCompression = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	156 biSizeImage = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	157 biXPelsPerMeter = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	158 biYPelsPerMeter = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	159 biClrUsed = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	160 biClrImportant = SDL_ReadLE32(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	161 } else {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	162 SDL_SetError("Unsupported ICO bitmap format");
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	163 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	164 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	165 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	166
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	167 /* Check for read error */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	168 if (SDL_strcmp(SDL_GetError(), "") != 0) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	169 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	170 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	171 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	172
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	173 /* We don't support any BMP compression right now */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	174 switch (biCompression) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	175 case BI_RGB:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	176 /* Default values for the BMP format */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	177 switch (biBitCount) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	178 case 1:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	179 case 4:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	180 ExpandBMP = biBitCount;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	181 biBitCount = 8;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	182 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	183 case 8:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	184 ExpandBMP = 8;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	185 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	186 case 32:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	187 Rmask = 0x00FF0000;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	188 Gmask = 0x0000FF00;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	189 Bmask = 0x000000FF;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	190 ExpandBMP = 0;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	191 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	192 default:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	193 SDL_SetError("ICO file with unsupported bit count");
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	194 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	195 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	196 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	197 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	198 default:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	199 SDL_SetError("Compressed ICO files not supported");
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	200 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	201 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	202 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	203
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	204 /* Create a RGBA surface */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	205 biHeight = biHeight >> 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	206 //printf("%d x %d\n", biWidth, biHeight);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	207 surface =
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	208 SDL_CreateRGBSurface(0, biWidth, biHeight, 32, 0x00FF0000,
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	209 0x0000FF00, 0x000000FF, 0xFF000000);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	210 if (surface == NULL) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	211 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	212 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	213 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	214
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	215 /* Load the palette, if any */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	216 //printf("bc %d bused %d\n", biBitCount, biClrUsed);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	217 if (biBitCount <= 8) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	218 if (biClrUsed == 0) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	219 biClrUsed = 1 << biBitCount;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	220 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	221 for (i = 0; i < (int) biClrUsed; ++i) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	222 SDL_RWread(src, &palette[i], 4, 1);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	223 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	224 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	225
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	226 /* Read the surface pixels. Note that the bmp image is upside down */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	227 bits = (Uint8 ) surface->pixels + (surface->h surface->pitch);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	228 switch (ExpandBMP) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	229 case 1:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	230 bmpPitch = (biWidth + 7) >> 3;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	231 pad = (((bmpPitch) % 4) ? (4 - ((bmpPitch) % 4)) : 0);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	232 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	233 case 4:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	234 bmpPitch = (biWidth + 1) >> 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	235 pad = (((bmpPitch) % 4) ? (4 - ((bmpPitch) % 4)) : 0);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	236 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	237 case 8:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	238 bmpPitch = biWidth;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	239 pad = (((bmpPitch) % 4) ? (4 - ((bmpPitch) % 4)) : 0);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	240 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	241 default:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	242 bmpPitch = biWidth * 4;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	243 pad = 0;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	244 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	245 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	246 while (bits > (Uint8 *) surface->pixels) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	247 bits -= surface->pitch;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	248 switch (ExpandBMP) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	249 case 1:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	250 case 4:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	251 case 8:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	252 {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	253 Uint8 pixel = 0;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	254 int shift = (8 - ExpandBMP);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	255 for (i = 0; i < surface->w; ++i) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	256 if (i % (8 / ExpandBMP) == 0) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	257 if (!SDL_RWread(src, &pixel, 1, 1)) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	258 SDL_SetError("Error reading from ICO");
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	259 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	260 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	261 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	262 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	263 ((Uint32 ) bits + i) = (palette[pixel >> shift]);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	264 pixel <<= ExpandBMP;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	265 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	266 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	267 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	268
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	269 default:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	270 if (SDL_RWread(src, bits, 1, surface->pitch)
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	271 != surface->pitch) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	272 SDL_Error(SDL_EFREAD);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	273 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	274 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	275 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	276 break;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	277 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	278 /* Skip padding bytes, ugh */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	279 if (pad) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	280 Uint8 padbyte;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	281 for (i = 0; i < pad; ++i) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	282 SDL_RWread(src, &padbyte, 1, 1);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	283 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	284 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	285 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	286 /* Read the mask pixels. Note that the bmp image is upside down */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	287 bits = (Uint8 ) surface->pixels + (surface->h surface->pitch);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	288 ExpandBMP = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	289 bmpPitch = (biWidth + 7) >> 3;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	290 pad = (((bmpPitch) % 4) ? (4 - ((bmpPitch) % 4)) : 0);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	291 while (bits > (Uint8 *) surface->pixels) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	292 Uint8 pixel = 0;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	293 int shift = (8 - ExpandBMP);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	294
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	295 bits -= surface->pitch;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	296 for (i = 0; i < surface->w; ++i) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	297 if (i % (8 / ExpandBMP) == 0) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	298 if (!SDL_RWread(src, &pixel, 1, 1)) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	299 SDL_SetError("Error reading from ICO");
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	300 was_error = 1;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	301 goto done;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	302 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	303 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	304 ((Uint32 ) bits + i) \|= ((pixel >> shift) ? 0 : 0xFF000000);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	305 pixel <<= ExpandBMP;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	306 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	307 /* Skip padding bytes, ugh */
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	308 if (pad) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	309 Uint8 padbyte;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	310 for (i = 0; i < pad; ++i) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	311 SDL_RWread(src, &padbyte, 1, 1);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	312 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	313 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	314 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	315 done:
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	316 if (was_error) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	317 if (src) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	318 SDL_RWseek(src, fp_offset, RW_SEEK_SET);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	319 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	320 if (surface) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	321 SDL_FreeSurface(surface);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	322 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	323 surface = NULL;
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	324 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	325 if (freesrc && src) {
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	326 SDL_RWclose(src);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	327 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	328 return (surface);
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	329 }
1a08749aebce Add SDL_LoadICO_RW to SDL. Loads best quality icon from .ico file. Couriersud <couriersud@arcor.de>* parents: 2990 diff changeset	330
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	331 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: 1402 diff changeset	332 SDL_LoadBMP_RW(SDL_RWops * src, int freesrc)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	334 int was_error;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	335 long fp_offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	336 int bmpPitch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	337 int i, pad;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	338 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: 1402 diff changeset	339 Uint32 Rmask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	340 Uint32 Gmask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	341 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: 1402 diff changeset	342 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: 1402 diff changeset	343 Uint8 *bits;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	344 int ExpandBMP;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	345
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	346 /* The Win32 BMP file header (14 bytes) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	347 char magic[2];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	348 Uint32 bfSize;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	349 Uint16 bfReserved1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	350 Uint16 bfReserved2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	351 Uint32 bfOffBits;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	352
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	353 /* The Win32 BITMAPINFOHEADER struct (40 bytes) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	354 Uint32 biSize;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	355 Sint32 biWidth;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	356 Sint32 biHeight;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	357 Uint16 biPlanes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	358 Uint16 biBitCount;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	359 Uint32 biCompression;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	360 Uint32 biSizeImage;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	361 Sint32 biXPelsPerMeter;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	362 Sint32 biYPelsPerMeter;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	363 Uint32 biClrUsed;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	364 Uint32 biClrImportant;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	366 /* Make sure we are passed a valid data source */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	367 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: 1402 diff changeset	368 was_error = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	369 if (src == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	370 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	371 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	372 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	373
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	374 /* Read in the BMP file header */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	375 fp_offset = SDL_RWtell(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	376 SDL_ClearError();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	377 if (SDL_RWread(src, magic, 1, 2) != 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	378 SDL_Error(SDL_EFREAD);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	379 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	380 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	381 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	382 if (SDL_strncmp(magic, "BM", 2) != 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	383 SDL_SetError("File is not a Windows BMP file");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	384 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	385 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	386 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	387 bfSize = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	388 bfReserved1 = SDL_ReadLE16(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	389 bfReserved2 = SDL_ReadLE16(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	390 bfOffBits = SDL_ReadLE32(src);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	391
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	392 /* Read the Win32 BITMAPINFOHEADER */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	393 biSize = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	394 if (biSize == 12) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	395 biWidth = (Uint32) SDL_ReadLE16(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	396 biHeight = (Uint32) SDL_ReadLE16(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	397 biPlanes = SDL_ReadLE16(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	398 biBitCount = SDL_ReadLE16(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	399 biCompression = BI_RGB;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	400 biSizeImage = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	401 biXPelsPerMeter = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	402 biYPelsPerMeter = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	403 biClrUsed = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	404 biClrImportant = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	405 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	406 biWidth = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	407 biHeight = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	408 biPlanes = SDL_ReadLE16(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	409 biBitCount = SDL_ReadLE16(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	410 biCompression = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	411 biSizeImage = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	412 biXPelsPerMeter = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	413 biYPelsPerMeter = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	414 biClrUsed = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	415 biClrImportant = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	416 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	418 /* Check for read error */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	419 if (SDL_strcmp(SDL_GetError(), "") != 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	420 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	421 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	422 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	423
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	424 /* Expand 1 and 4 bit bitmaps to 8 bits per pixel */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	425 switch (biBitCount) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	426 case 1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	427 case 4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	428 ExpandBMP = biBitCount;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	429 biBitCount = 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	430 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	431 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	432 ExpandBMP = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	433 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	434 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	435
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	436 /* We don't support any BMP compression right now */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	437 Rmask = Gmask = Bmask = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	438 switch (biCompression) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	439 case BI_RGB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	440 /* If there are no masks, use the defaults */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	441 if (bfOffBits == (14 + biSize)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	442 /* Default values for the BMP format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	443 switch (biBitCount) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	444 case 15:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	445 case 16:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	446 Rmask = 0x7C00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	447 Gmask = 0x03E0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	448 Bmask = 0x001F;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	449 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	450 case 24:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	451 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	452 Rmask = 0x000000FF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	453 Gmask = 0x0000FF00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	454 Bmask = 0x00FF0000;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	455 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	456 #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: 1402 diff changeset	457 case 32:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	458 Rmask = 0x00FF0000;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	459 Gmask = 0x0000FF00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	460 Bmask = 0x000000FF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	461 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	462 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	463 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	464 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	465 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	466 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	467 /* Fall through -- read the RGB masks */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	468
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	469 case BI_BITFIELDS:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	470 switch (biBitCount) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	471 case 15:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	472 case 16:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	473 case 32:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	474 Rmask = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	475 Gmask = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	476 Bmask = SDL_ReadLE32(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	477 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	478 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	479 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	480 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	481 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	482 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	483 SDL_SetError("Compressed BMP files not supported");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	484 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	485 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	486 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	487
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	488 /* Create a compatible surface, note that the colors are RGB ordered */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	489 surface =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	490 SDL_CreateRGBSurface(0, biWidth, biHeight, biBitCount, Rmask, Gmask,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	491 Bmask, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	492 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: 1402 diff changeset	493 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	494 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	495 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	496
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	497 /* Load 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: 1402 diff changeset	498 palette = (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: 1402 diff changeset	499 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: 1402 diff changeset	500 if (biClrUsed == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	501 biClrUsed = 1 << biBitCount;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	502 }
2920 cdb01906cb7e indent Sam Lantinga <slouken@libsdl.org> parents: 2918 diff changeset	503 if ((int) biClrUsed > palette->ncolors) {
2851 6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	504 palette->ncolors = biClrUsed;
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	505 palette->colors =
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	506 (SDL_Color *) SDL_realloc(palette->colors,
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	507 palette->ncolors *
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	508 sizeof(*palette->colors));
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	509 if (!palette->colors) {
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	510 SDL_OutOfMemory();
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	511 was_error = 1;
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	512 goto done;
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	513 }
2920 cdb01906cb7e indent Sam Lantinga <slouken@libsdl.org> parents: 2918 diff changeset	514 } else if ((int) biClrUsed < palette->ncolors) {
2851 6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	515 palette->ncolors = biClrUsed;
6c3fbeb04eca Fixed crash in testpalette and potential crash in SDL_LoadBMP_RW() Sam Lantinga <slouken@libsdl.org> parents: 2823 diff changeset	516 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	517 if (biSize == 12) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	518 for (i = 0; i < (int) biClrUsed; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	519 SDL_RWread(src, &palette->colors[i].b, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	520 SDL_RWread(src, &palette->colors[i].g, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	521 SDL_RWread(src, &palette->colors[i].r, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	522 palette->colors[i].unused = SDL_ALPHA_OPAQUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	523 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	524 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	525 for (i = 0; i < (int) biClrUsed; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	526 SDL_RWread(src, &palette->colors[i].b, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	527 SDL_RWread(src, &palette->colors[i].g, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	528 SDL_RWread(src, &palette->colors[i].r, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	529 SDL_RWread(src, &palette->colors[i].unused, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	530 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	531 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	532 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	533
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	534 /* Read the surface pixels. Note that the bmp image is upside down */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	535 if (SDL_RWseek(src, fp_offset + bfOffBits, RW_SEEK_SET) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	536 SDL_Error(SDL_EFSEEK);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	537 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	538 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	539 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	540 bits = (Uint8 ) surface->pixels + (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: 1402 diff changeset	541 switch (ExpandBMP) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	542 case 1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	543 bmpPitch = (biWidth + 7) >> 3;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	544 pad = (((bmpPitch) % 4) ? (4 - ((bmpPitch) % 4)) : 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	545 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	546 case 4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	547 bmpPitch = (biWidth + 1) >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	548 pad = (((bmpPitch) % 4) ? (4 - ((bmpPitch) % 4)) : 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	549 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	550 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	551 pad = ((surface->pitch % 4) ? (4 - (surface->pitch % 4)) : 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	552 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	553 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	554 while (bits > (Uint8 *) 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: 1402 diff changeset	555 bits -= 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: 1402 diff changeset	556 switch (ExpandBMP) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	557 case 1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	558 case 4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	559 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	560 Uint8 pixel = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	561 int shift = (8 - ExpandBMP);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	562 for (i = 0; i < surface->w; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	563 if (i % (8 / ExpandBMP) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	564 if (!SDL_RWread(src, &pixel, 1, 1)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	565 SDL_SetError("Error reading from BMP");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	566 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	567 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	568 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	569 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	570 *(bits + i) = (pixel >> shift);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	571 pixel <<= ExpandBMP;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	572 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	573 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	574 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	575
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	576 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	577 if (SDL_RWread(src, bits, 1, 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: 1402 diff changeset	578 != 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: 1402 diff changeset	579 SDL_Error(SDL_EFREAD);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	580 was_error = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	581 goto done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	582 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	583 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	584 /* Byte-swap the pixels if needed. Note that the 24bpp
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	585 case has already been taken care of above. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	586 switch (biBitCount) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	587 case 15:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	588 case 16:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	589 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	590 Uint16 pix = (Uint16 ) bits;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	591 for (i = 0; i < surface->w; i++)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	592 pix[i] = SDL_Swap16(pix[i]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	593 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	594 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	595
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	596 case 32:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	597 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	598 Uint32 pix = (Uint32 ) bits;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	599 for (i = 0; i < surface->w; i++)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	600 pix[i] = SDL_Swap32(pix[i]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	601 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	602 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	603 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	604 #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: 1402 diff changeset	605 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	606 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	607 /* Skip padding bytes, ugh */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	608 if (pad) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	609 Uint8 padbyte;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	610 for (i = 0; i < pad; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	611 SDL_RWread(src, &padbyte, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	612 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	613 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	614 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	615 done:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	616 if (was_error) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	617 if (src) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	618 SDL_RWseek(src, fp_offset, RW_SEEK_SET);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	619 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	620 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: 1402 diff changeset	621 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: 1402 diff changeset	622 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	623 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: 1402 diff changeset	624 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	625 if (freesrc && src) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	626 SDL_RWclose(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	627 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	628 return (surface);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	629 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	630
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	631 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	632 SDL_SaveBMP_RW(SDL_Surface * saveme, SDL_RWops * dst, int freedst)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	633 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	634 long fp_offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	635 int i, pad;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	636 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: 1402 diff changeset	637 Uint8 *bits;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	638
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	639 /* The Win32 BMP file header (14 bytes) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	640 char magic[2] = { 'B', 'M' };
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	641 Uint32 bfSize;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	642 Uint16 bfReserved1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	643 Uint16 bfReserved2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	644 Uint32 bfOffBits;
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: 1402 diff changeset	646 /* The Win32 BITMAPINFOHEADER struct (40 bytes) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	647 Uint32 biSize;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	648 Sint32 biWidth;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	649 Sint32 biHeight;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	650 Uint16 biPlanes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	651 Uint16 biBitCount;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	652 Uint32 biCompression;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	653 Uint32 biSizeImage;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	654 Sint32 biXPelsPerMeter;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	655 Sint32 biYPelsPerMeter;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	656 Uint32 biClrUsed;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	657 Uint32 biClrImportant;
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: 1402 diff changeset	659 /* Make sure we have somewhere to save */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	660 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: 1402 diff changeset	661 if (dst) {
2969 1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	662 SDL_bool save32bit = SDL_FALSE;
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	663 #ifdef SAVE_32BIT_BMP
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	664 /* We can save alpha information in a 32-bit BMP */
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	665 if (saveme->map->info.flags & SDL_COPY_COLORKEY \|\|
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	666 saveme->format->Amask) {
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	667 save32bit = SDL_TRUE;
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	668 }
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	669 #endif /* SAVE_32BIT_BMP */
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	670
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	671 if (saveme->format->palette && !save32bit) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	672 if (saveme->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: 1402 diff changeset	673 surface = saveme;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	674 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	675 SDL_SetError("%d bpp BMP files not supported",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	676 saveme->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: 1402 diff changeset	677 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	678 } else if ((saveme->format->BitsPerPixel == 24) &&
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	679 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	680 (saveme->format->Rmask == 0x00FF0000) &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	681 (saveme->format->Gmask == 0x0000FF00) &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	682 (saveme->format->Bmask == 0x000000FF)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	683 #else
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	684 (saveme->format->Rmask == 0x000000FF) &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	685 (saveme->format->Gmask == 0x0000FF00) &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	686 (saveme->format->Bmask == 0x00FF0000)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	687 #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: 1402 diff changeset	688 ) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	689 surface = saveme;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	690 } else {
2967 e4a469d6ddab Implemented SDL_SetWindowIcon(), with translucent icon support under X11. Sam Lantinga <slouken@libsdl.org> parents: 2920 diff changeset	691 SDL_PixelFormat format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	692
2969 1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	693 /* If the surface has a colorkey or alpha channel we'll save a
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	694 32-bit BMP with alpha channel, otherwise save a 24-bit BMP. */
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	695 if (save32bit) {
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	696 SDL_InitFormat(&format, 32,
2990 502adab079a4 indent Sam Lantinga <slouken@libsdl.org> parents: 2969 diff changeset	697 0x00FF0000, 0x0000FF00, 0x000000FF,
502adab079a4 indent Sam Lantinga <slouken@libsdl.org> parents: 2969 diff changeset	698 0xFF000000);
2969 1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	699 } else {
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	700 SDL_InitFormat(&format, 24,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	701 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
2969 1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	702 0x00FF0000, 0x0000FF00, 0x000000FF,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	703 #else
2969 1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	704 0x000000FF, 0x0000FF00, 0x00FF0000,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	705 #endif
2969 1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	706 0);
1ee69e7e7cea Added support for saving 32-bit BMP with alpha channel (disabled by default) Sam Lantinga <slouken@libsdl.org> parents: 2967 diff changeset	707 }
2967 e4a469d6ddab Implemented SDL_SetWindowIcon(), with translucent icon support under X11. Sam Lantinga <slouken@libsdl.org> parents: 2920 diff changeset	708 surface = SDL_ConvertSurface(saveme, &format, 0);
e4a469d6ddab Implemented SDL_SetWindowIcon(), with translucent icon support under X11. Sam Lantinga <slouken@libsdl.org> parents: 2920 diff changeset	709 if (!surface) {
2990 502adab079a4 indent Sam Lantinga <slouken@libsdl.org> parents: 2969 diff changeset	710 SDL_SetError("Couldn't convert image to %d bpp",
502adab079a4 indent Sam Lantinga <slouken@libsdl.org> parents: 2969 diff changeset	711 format.BitsPerPixel);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	712 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	713 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	714 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	715
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	716 if (surface && (SDL_LockSurface(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: 1402 diff changeset	717 const int bw = surface->w * surface->format->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	718
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	719 /* Set the BMP file header values */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	720 bfSize = 0; /* We'll write this when we're done */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	721 bfReserved1 = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	722 bfReserved2 = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	723 bfOffBits = 0; /* We'll write this when we're done */
1012 f14e3059e138 Date: Mon, 13 Dec 2004 21:28:18 -0500 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	724
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	725 /* Write the BMP file header values */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	726 fp_offset = SDL_RWtell(dst);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	727 SDL_ClearError();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	728 SDL_RWwrite(dst, magic, 2, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	729 SDL_WriteLE32(dst, bfSize);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	730 SDL_WriteLE16(dst, bfReserved1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	731 SDL_WriteLE16(dst, bfReserved2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	732 SDL_WriteLE32(dst, bfOffBits);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	733
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	734 /* Set the BMP info values */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	735 biSize = 40;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	736 biWidth = 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: 1402 diff changeset	737 biHeight = 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: 1402 diff changeset	738 biPlanes = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	739 biBitCount = 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: 1402 diff changeset	740 biCompression = BI_RGB;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	741 biSizeImage = 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: 1402 diff changeset	742 biXPelsPerMeter = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	743 biYPelsPerMeter = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	744 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: 1402 diff changeset	745 biClrUsed = surface->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: 1402 diff changeset	746 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	747 biClrUsed = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	748 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	749 biClrImportant = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	750
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	751 /* Write the BMP info values */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	752 SDL_WriteLE32(dst, biSize);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	753 SDL_WriteLE32(dst, biWidth);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	754 SDL_WriteLE32(dst, biHeight);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	755 SDL_WriteLE16(dst, biPlanes);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	756 SDL_WriteLE16(dst, biBitCount);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	757 SDL_WriteLE32(dst, biCompression);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	758 SDL_WriteLE32(dst, biSizeImage);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	759 SDL_WriteLE32(dst, biXPelsPerMeter);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	760 SDL_WriteLE32(dst, biYPelsPerMeter);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	761 SDL_WriteLE32(dst, biClrUsed);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	762 SDL_WriteLE32(dst, biClrImportant);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	763
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	764 /* Write the palette (in BGR color order) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	765 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: 1402 diff changeset	766 SDL_Color *colors;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	767 int ncolors;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	768
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	769 colors = surface->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: 1402 diff changeset	770 ncolors = surface->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: 1402 diff changeset	771 for (i = 0; i < 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: 1402 diff changeset	772 SDL_RWwrite(dst, &colors[i].b, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	773 SDL_RWwrite(dst, &colors[i].g, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	774 SDL_RWwrite(dst, &colors[i].r, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	775 SDL_RWwrite(dst, &colors[i].unused, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	776 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	777 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	778
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	779 /* Write the bitmap offset */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	780 bfOffBits = SDL_RWtell(dst) - fp_offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	781 if (SDL_RWseek(dst, fp_offset + 10, RW_SEEK_SET) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	782 SDL_Error(SDL_EFSEEK);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	783 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	784 SDL_WriteLE32(dst, bfOffBits);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	785 if (SDL_RWseek(dst, fp_offset + bfOffBits, RW_SEEK_SET) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	786 SDL_Error(SDL_EFSEEK);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	787 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	788
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	789 /* Write the bitmap image upside down */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	790 bits = (Uint8 ) surface->pixels + (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: 1402 diff changeset	791 pad = ((bw % 4) ? (4 - (bw % 4)) : 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	792 while (bits > (Uint8 *) 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: 1402 diff changeset	793 bits -= 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: 1402 diff changeset	794 if (SDL_RWwrite(dst, bits, 1, bw) != bw) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	795 SDL_Error(SDL_EFWRITE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	796 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 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: 1402 diff changeset	798 if (pad) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	799 const Uint8 padbyte = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	800 for (i = 0; i < pad; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	801 SDL_RWwrite(dst, &padbyte, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	802 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	803 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	804 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	805
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	806 /* Write the BMP file size */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	807 bfSize = SDL_RWtell(dst) - fp_offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	808 if (SDL_RWseek(dst, fp_offset + 2, RW_SEEK_SET) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	809 SDL_Error(SDL_EFSEEK);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	810 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	811 SDL_WriteLE32(dst, bfSize);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	812 if (SDL_RWseek(dst, fp_offset + bfSize, RW_SEEK_SET) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	813 SDL_Error(SDL_EFSEEK);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	814 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	815
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	816 /* Close it up.. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	817 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: 1402 diff changeset	818 if (surface != saveme) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	819 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: 1402 diff changeset	820 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	821 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	822
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	823 if (freedst && dst) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	824 SDL_RWclose(dst);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	825 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	826 return ((SDL_strcmp(SDL_GetError(), "") == 0) ? 0 : -1);
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: 1402 diff changeset	828
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	829 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_bmp.c @ 3024:1a08749aebce