Mercurial > sdl-ios-xcode
annotate src/video/SDL_bmp.c @ 2825:620a91b6d263
Date: Tue, 02 Dec 2008 23:38:26 +0100
From: Couriersud
Subject: Re: SDL: Keyboard layout unknown
I have attached a diff which will add an additional keyboard layout to
the x11 driver. The issue arose, when I moved to ubuntu intrepid. I was
only able to map the keys available on my keyboard. The differences to
the existing keyboard was the mapping of HOME,UP,DOWN and some other
keys.
Now only one issue remains. Dead keys (e.g. ^, ` ') on european
keyboards do not generate a "scancode" event. Just a text event when the
key is composed (e.g. ?? ?? ??).
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 03 Dec 2008 04:32:24 +0000 |
parents | 15e1dd1fff78 |
children | 6c3fbeb04eca |
rev | line source |
---|---|
0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
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22 #include "SDL_config.h" |
0 | 23 |
24 /* | |
25 Code to load and save surfaces in Windows BMP format. | |
26 | |
27 Why support BMP format? Well, it's a native format for Windows, and | |
28 most image processing programs can read and write it. It would be nice | |
29 to be able to have at least one image format that we can natively load | |
30 and save, and since PNG is so complex that it would bloat the library, | |
31 BMP is a good alternative. | |
32 | |
33 This code currently supports Win32 DIBs in uncompressed 8 and 24 bpp. | |
34 */ | |
35 | |
36 #include "SDL_video.h" | |
37 #include "SDL_endian.h" | |
2823 | 38 #include "SDL_pixels_c.h" |
0 | 39 |
40 /* Compression encodings for BMP files */ | |
41 #ifndef BI_RGB | |
42 #define BI_RGB 0 | |
43 #define BI_RLE8 1 | |
44 #define BI_RLE4 2 | |
45 #define BI_BITFIELDS 3 | |
46 #endif | |
47 | |
48 | |
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49 SDL_Surface * |
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50 SDL_LoadBMP_RW(SDL_RWops * src, int freesrc) |
0 | 51 { |
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52 int was_error; |
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53 long fp_offset; |
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54 int bmpPitch; |
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55 int i, pad; |
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56 SDL_Surface *surface; |
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57 Uint32 Rmask; |
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58 Uint32 Gmask; |
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59 Uint32 Bmask; |
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60 SDL_Palette *palette; |
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61 Uint8 *bits; |
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62 int ExpandBMP; |
0 | 63 |
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64 /* The Win32 BMP file header (14 bytes) */ |
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65 char magic[2]; |
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66 Uint32 bfSize; |
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67 Uint16 bfReserved1; |
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68 Uint16 bfReserved2; |
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69 Uint32 bfOffBits; |
0 | 70 |
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71 /* The Win32 BITMAPINFOHEADER struct (40 bytes) */ |
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72 Uint32 biSize; |
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73 Sint32 biWidth; |
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74 Sint32 biHeight; |
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75 Uint16 biPlanes; |
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76 Uint16 biBitCount; |
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77 Uint32 biCompression; |
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78 Uint32 biSizeImage; |
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79 Sint32 biXPelsPerMeter; |
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80 Sint32 biYPelsPerMeter; |
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81 Uint32 biClrUsed; |
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82 Uint32 biClrImportant; |
0 | 83 |
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84 /* Make sure we are passed a valid data source */ |
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85 surface = NULL; |
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86 was_error = 0; |
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87 if (src == NULL) { |
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88 was_error = 1; |
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89 goto done; |
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90 } |
0 | 91 |
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92 /* Read in the BMP file header */ |
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93 fp_offset = SDL_RWtell(src); |
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94 SDL_ClearError(); |
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95 if (SDL_RWread(src, magic, 1, 2) != 2) { |
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96 SDL_Error(SDL_EFREAD); |
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97 was_error = 1; |
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98 goto done; |
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99 } |
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100 if (SDL_strncmp(magic, "BM", 2) != 0) { |
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101 SDL_SetError("File is not a Windows BMP file"); |
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102 was_error = 1; |
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103 goto done; |
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104 } |
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105 bfSize = SDL_ReadLE32(src); |
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106 bfReserved1 = SDL_ReadLE16(src); |
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107 bfReserved2 = SDL_ReadLE16(src); |
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108 bfOffBits = SDL_ReadLE32(src); |
0 | 109 |
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110 /* Read the Win32 BITMAPINFOHEADER */ |
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111 biSize = SDL_ReadLE32(src); |
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112 if (biSize == 12) { |
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113 biWidth = (Uint32) SDL_ReadLE16(src); |
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114 biHeight = (Uint32) SDL_ReadLE16(src); |
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115 biPlanes = SDL_ReadLE16(src); |
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116 biBitCount = SDL_ReadLE16(src); |
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117 biCompression = BI_RGB; |
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118 biSizeImage = 0; |
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119 biXPelsPerMeter = 0; |
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120 biYPelsPerMeter = 0; |
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121 biClrUsed = 0; |
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122 biClrImportant = 0; |
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123 } else { |
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124 biWidth = SDL_ReadLE32(src); |
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125 biHeight = SDL_ReadLE32(src); |
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126 biPlanes = SDL_ReadLE16(src); |
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127 biBitCount = SDL_ReadLE16(src); |
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128 biCompression = SDL_ReadLE32(src); |
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129 biSizeImage = SDL_ReadLE32(src); |
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130 biXPelsPerMeter = SDL_ReadLE32(src); |
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131 biYPelsPerMeter = SDL_ReadLE32(src); |
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132 biClrUsed = SDL_ReadLE32(src); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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133 biClrImportant = SDL_ReadLE32(src); |
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134 } |
0 | 135 |
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136 /* Check for read error */ |
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137 if (SDL_strcmp(SDL_GetError(), "") != 0) { |
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138 was_error = 1; |
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139 goto done; |
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140 } |
0 | 141 |
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142 /* Expand 1 and 4 bit bitmaps to 8 bits per pixel */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
143 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
|
144 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
|
145 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
|
146 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
|
147 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
|
148 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
|
149 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
|
150 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
|
151 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
|
152 } |
0 | 153 |
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
|
154 /* 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
|
155 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
|
156 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
|
157 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
|
158 /* 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
|
159 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
|
160 /* 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
|
161 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
|
162 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
|
163 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
|
164 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
|
165 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
|
166 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
|
167 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
|
168 case 24: |
0 | 169 #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
|
170 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
|
171 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
|
172 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
|
173 break; |
0 | 174 #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
|
175 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
|
176 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
|
177 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
|
178 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
|
179 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
|
180 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
|
181 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
|
182 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
183 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
|
184 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
185 /* Fall through -- read the RGB masks */ |
0 | 186 |
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
|
187 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
|
188 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
|
189 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
|
190 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
|
191 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
|
192 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
|
193 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
|
194 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
|
195 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
|
196 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
|
197 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
|
198 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
199 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
|
200 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
|
201 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
|
202 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
|
203 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
|
204 } |
0 | 205 |
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
|
206 /* 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
|
207 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
|
208 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
|
209 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
|
210 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
|
211 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
|
212 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
|
213 } |
0 | 214 |
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
|
215 /* 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
|
216 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
|
217 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
|
218 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
|
219 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
|
220 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
221 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
|
222 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
|
223 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
|
224 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
|
225 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
|
226 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
|
227 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
228 } 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
|
229 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
|
230 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
|
231 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
|
232 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
|
233 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
|
234 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
235 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
236 } |
0 | 237 |
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
|
238 /* 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
|
239 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
|
240 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
|
241 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
|
242 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
|
243 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
244 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
|
245 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
|
246 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
|
247 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
|
248 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
|
249 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
|
250 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
|
251 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
|
252 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
|
253 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
|
254 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
|
255 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
|
256 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
257 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
258 while (bits > (Uint8 *) surface->pixels) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
259 bits -= surface->pitch; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
260 switch (ExpandBMP) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
261 case 1: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
262 case 4: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
263 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
264 Uint8 pixel = 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
265 int shift = (8 - ExpandBMP); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
266 for (i = 0; i < surface->w; ++i) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
267 if (i % (8 / ExpandBMP) == 0) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
268 if (!SDL_RWread(src, &pixel, 1, 1)) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
269 SDL_SetError("Error reading from BMP"); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
270 was_error = 1; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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271 goto done; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
272 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
273 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
274 *(bits + i) = (pixel >> shift); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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275 pixel <<= ExpandBMP; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
276 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
277 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
278 break; |
0 | 279 |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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280 default: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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281 if (SDL_RWread(src, bits, 1, surface->pitch) |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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282 != surface->pitch) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
283 SDL_Error(SDL_EFREAD); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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284 was_error = 1; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
285 goto done; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
286 } |
0 | 287 #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
288 /* 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.
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|
289 case has already been taken care of above. */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
290 switch (biBitCount) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
291 case 15: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
292 case 16: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
293 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
294 Uint16 *pix = (Uint16 *) bits; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
295 for (i = 0; i < surface->w; i++) |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
296 pix[i] = SDL_Swap16(pix[i]); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
297 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
298 } |
0 | 299 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
300 case 32: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
301 { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
302 Uint32 *pix = (Uint32 *) bits; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
303 for (i = 0; i < surface->w; i++) |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
304 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>
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|
305 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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|
306 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
307 } |
0 | 308 #endif |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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diff
changeset
|
309 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
|
310 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
311 /* 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:
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diff
changeset
|
312 if (pad) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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diff
changeset
|
313 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:
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changeset
|
314 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:
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diff
changeset
|
315 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:
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|
316 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
317 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
318 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
319 done: |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
320 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:
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diff
changeset
|
321 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:
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diff
changeset
|
322 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:
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diff
changeset
|
323 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
324 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:
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diff
changeset
|
325 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:
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diff
changeset
|
326 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
327 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:
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diff
changeset
|
328 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
329 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:
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diff
changeset
|
330 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:
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diff
changeset
|
331 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
332 return (surface); |
0 | 333 } |
334 | |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
335 int |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
336 SDL_SaveBMP_RW(SDL_Surface * saveme, SDL_RWops * dst, int freedst) |
0 | 337 { |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
338 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:
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diff
changeset
|
339 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:
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diff
changeset
|
340 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:
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diff
changeset
|
341 Uint8 *bits; |
0 | 342 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
343 /* 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:
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diff
changeset
|
344 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:
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diff
changeset
|
345 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:
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diff
changeset
|
346 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:
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diff
changeset
|
347 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:
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diff
changeset
|
348 Uint32 bfOffBits; |
0 | 349 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
350 /* 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:
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diff
changeset
|
351 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:
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diff
changeset
|
352 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:
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diff
changeset
|
353 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:
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diff
changeset
|
354 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:
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diff
changeset
|
355 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:
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diff
changeset
|
356 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
|
357 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
|
358 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
|
359 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
|
360 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
|
361 Uint32 biClrImportant; |
0 | 362 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
363 /* 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:
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diff
changeset
|
364 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
|
365 if (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
|
366 if (saveme->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
|
367 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
|
368 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:
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diff
changeset
|
369 } else { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
370 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
|
371 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:
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diff
changeset
|
372 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
373 } else if ((saveme->format->BitsPerPixel == 24) && |
0 | 374 #if SDL_BYTEORDER == SDL_LIL_ENDIAN |
1895
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375 (saveme->format->Rmask == 0x00FF0000) && |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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376 (saveme->format->Gmask == 0x0000FF00) && |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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377 (saveme->format->Bmask == 0x000000FF) |
0 | 378 #else |
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379 (saveme->format->Rmask == 0x000000FF) && |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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380 (saveme->format->Gmask == 0x0000FF00) && |
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381 (saveme->format->Bmask == 0x00FF0000) |
0 | 382 #endif |
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383 ) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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384 surface = saveme; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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385 } else { |
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386 SDL_PixelFormat *format; |
0 | 387 |
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388 /* Convert to 24 bits per pixel */ |
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389 format = SDL_AllocFormat(24, |
0 | 390 #if SDL_BYTEORDER == SDL_LIL_ENDIAN |
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391 0x00FF0000, 0x0000FF00, 0x000000FF, |
0 | 392 #else |
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393 0x000000FF, 0x0000FF00, 0x00FF0000, |
0 | 394 #endif |
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395 0); |
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396 if (format != NULL) { |
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397 surface = SDL_ConvertSurface(saveme, format, 0); |
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398 if (!surface) { |
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399 SDL_SetError("Couldn't convert image to 24 bpp"); |
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400 } |
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401 SDL_FreeFormat(format); |
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402 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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403 } |
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404 } |
0 | 405 |
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406 if (surface && (SDL_LockSurface(surface) == 0)) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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407 const int bw = surface->w * surface->format->BytesPerPixel; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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408 |
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409 /* Set the BMP file header values */ |
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410 bfSize = 0; /* We'll write this when we're done */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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411 bfReserved1 = 0; |
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412 bfReserved2 = 0; |
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413 bfOffBits = 0; /* We'll write this when we're done */ |
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414 |
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415 /* Write the BMP file header values */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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416 fp_offset = SDL_RWtell(dst); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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417 SDL_ClearError(); |
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418 SDL_RWwrite(dst, magic, 2, 1); |
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419 SDL_WriteLE32(dst, bfSize); |
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420 SDL_WriteLE16(dst, bfReserved1); |
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421 SDL_WriteLE16(dst, bfReserved2); |
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422 SDL_WriteLE32(dst, bfOffBits); |
0 | 423 |
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424 /* Set the BMP info values */ |
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425 biSize = 40; |
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426 biWidth = surface->w; |
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427 biHeight = surface->h; |
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428 biPlanes = 1; |
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429 biBitCount = surface->format->BitsPerPixel; |
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430 biCompression = BI_RGB; |
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431 biSizeImage = surface->h * surface->pitch; |
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432 biXPelsPerMeter = 0; |
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433 biYPelsPerMeter = 0; |
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434 if (surface->format->palette) { |
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435 biClrUsed = surface->format->palette->ncolors; |
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436 } else { |
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437 biClrUsed = 0; |
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438 } |
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439 biClrImportant = 0; |
0 | 440 |
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441 /* Write the BMP info values */ |
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442 SDL_WriteLE32(dst, biSize); |
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443 SDL_WriteLE32(dst, biWidth); |
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444 SDL_WriteLE32(dst, biHeight); |
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445 SDL_WriteLE16(dst, biPlanes); |
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446 SDL_WriteLE16(dst, biBitCount); |
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447 SDL_WriteLE32(dst, biCompression); |
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448 SDL_WriteLE32(dst, biSizeImage); |
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449 SDL_WriteLE32(dst, biXPelsPerMeter); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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450 SDL_WriteLE32(dst, biYPelsPerMeter); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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451 SDL_WriteLE32(dst, biClrUsed); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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452 SDL_WriteLE32(dst, biClrImportant); |
0 | 453 |
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454 /* Write the palette (in BGR color order) */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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455 if (surface->format->palette) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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456 SDL_Color *colors; |
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457 int ncolors; |
0 | 458 |
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459 colors = surface->format->palette->colors; |
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460 ncolors = surface->format->palette->ncolors; |
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461 for (i = 0; i < ncolors; ++i) { |
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462 SDL_RWwrite(dst, &colors[i].b, 1, 1); |
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463 SDL_RWwrite(dst, &colors[i].g, 1, 1); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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464 SDL_RWwrite(dst, &colors[i].r, 1, 1); |
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465 SDL_RWwrite(dst, &colors[i].unused, 1, 1); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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466 } |
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467 } |
0 | 468 |
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469 /* Write the bitmap offset */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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470 bfOffBits = SDL_RWtell(dst) - fp_offset; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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471 if (SDL_RWseek(dst, fp_offset + 10, RW_SEEK_SET) < 0) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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472 SDL_Error(SDL_EFSEEK); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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473 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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474 SDL_WriteLE32(dst, bfOffBits); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
475 if (SDL_RWseek(dst, fp_offset + bfOffBits, RW_SEEK_SET) < 0) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
476 SDL_Error(SDL_EFSEEK); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
477 } |
0 | 478 |
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|
479 /* Write the bitmap image upside down */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
480 bits = (Uint8 *) surface->pixels + (surface->h * surface->pitch); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
481 pad = ((bw % 4) ? (4 - (bw % 4)) : 0); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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482 while (bits > (Uint8 *) surface->pixels) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
483 bits -= surface->pitch; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
484 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.
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|
485 SDL_Error(SDL_EFWRITE); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
486 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
487 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
488 if (pad) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
489 const Uint8 padbyte = 0; |
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490 for (i = 0; i < pad; ++i) { |
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491 SDL_RWwrite(dst, &padbyte, 1, 1); |
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492 } |
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493 } |
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494 } |
0 | 495 |
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496 /* Write the BMP file size */ |
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497 bfSize = SDL_RWtell(dst) - fp_offset; |
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498 if (SDL_RWseek(dst, fp_offset + 2, RW_SEEK_SET) < 0) { |
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499 SDL_Error(SDL_EFSEEK); |
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500 } |
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501 SDL_WriteLE32(dst, bfSize); |
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502 if (SDL_RWseek(dst, fp_offset + bfSize, RW_SEEK_SET) < 0) { |
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503 SDL_Error(SDL_EFSEEK); |
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504 } |
0 | 505 |
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506 /* Close it up.. */ |
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507 SDL_UnlockSurface(surface); |
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508 if (surface != saveme) { |
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509 SDL_FreeSurface(surface); |
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510 } |
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511 } |
0 | 512 |
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513 if (freedst && dst) { |
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514 SDL_RWclose(dst); |
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515 } |
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516 return ((SDL_strcmp(SDL_GetError(), "") == 0) ? 0 : -1); |
0 | 517 } |
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518 |
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519 /* vi: set ts=4 sw=4 expandtab: */ |