annotate src/video/ataricommon/SDL_atarigl.c @ 1336:3692456e7b0f

Use SDL_ prefixed versions of C library functions. FIXME: Change #include <stdlib.h> to #include "SDL_stdlib.h" Change #include <string.h> to #include "SDL_string.h" Make sure nothing else broke because of this...
author Sam Lantinga <slouken@libsdl.org>
date Tue, 07 Feb 2006 06:59:48 +0000
parents cbdb2c156aca
children 604d73db6802
rev   line source
989
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /* Atari OSMesa.ldg implementation of SDL OpenGL support */
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24
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25 /*--- Includes ---*/
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26
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27 #include <stdio.h>
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28 #include <stdlib.h>
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29 #include <string.h>
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30 #ifdef HAVE_OPENGL
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31 #include <GL/osmesa.h>
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32 #endif
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33
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34 #include <mint/osbind.h>
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35
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36 #include "SDL_video.h"
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37 #include "SDL_error.h"
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38 #include "SDL_endian.h"
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39 #include "SDL_atarigl_c.h"
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40 #ifdef ENABLE_OSMESA_SHARED
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41 #include "SDL_loadso.h"
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42 #endif
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43
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44 /*--- Defines ---*/
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45
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46 #define PATH_OSMESA_LDG "osmesa.ldg"
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47 #define PATH_MESAGL_LDG "mesa_gl.ldg"
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48 #define PATH_TINYGL_LDG "tiny_gl.ldg"
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49
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50 #define VDI_RGB 0xf
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51
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52 /*--- Functions prototypes ---*/
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53
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54 static void SDL_AtariGL_UnloadLibrary(_THIS);
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55
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56 #ifdef HAVE_OPENGL
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57 static void CopyShadowNull(_THIS, SDL_Surface *surface);
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58 static void CopyShadowDirect(_THIS, SDL_Surface *surface);
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59 static void CopyShadowRGBTo555(_THIS, SDL_Surface *surface);
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60 static void CopyShadowRGBTo565(_THIS, SDL_Surface *surface);
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61 static void CopyShadowRGBSwap(_THIS, SDL_Surface *surface);
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62 static void CopyShadowRGBToARGB(_THIS, SDL_Surface *surface);
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63 static void CopyShadowRGBToABGR(_THIS, SDL_Surface *surface);
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64 static void CopyShadowRGBToBGRA(_THIS, SDL_Surface *surface);
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65 static void CopyShadowRGBToRGBA(_THIS, SDL_Surface *surface);
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66 static void CopyShadow8888To555(_THIS, SDL_Surface *surface);
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67 static void CopyShadow8888To565(_THIS, SDL_Surface *surface);
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68
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69 static void ConvertNull(_THIS, SDL_Surface *surface);
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70 static void Convert565To555be(_THIS, SDL_Surface *surface);
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71 static void Convert565To555le(_THIS, SDL_Surface *surface);
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72 static void Convert565le(_THIS, SDL_Surface *surface);
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73 static void ConvertBGRAToABGR(_THIS, SDL_Surface *surface);
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74
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75 static int InitNew(_THIS, SDL_Surface *current);
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76 static int InitOld(_THIS, SDL_Surface *current);
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77 #endif
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78
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79 /*--- Public functions ---*/
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80
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81 int SDL_AtariGL_Init(_THIS, SDL_Surface *current)
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82 {
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83 #ifdef HAVE_OPENGL
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84 if (gl_oldmesa) {
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85 gl_active = InitOld(this, current);
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86 } else {
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87 gl_active = InitNew(this, current);
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88 }
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89 #endif
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90
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91 return (gl_active);
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92 }
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93
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94 void SDL_AtariGL_Quit(_THIS, SDL_bool unload)
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95 {
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96 #ifdef HAVE_OPENGL
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97 if (gl_oldmesa) {
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98 /* Old mesa implementations */
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99 if (this->gl_data->OSMesaDestroyLDG) {
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100 this->gl_data->OSMesaDestroyLDG();
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101 }
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102 if (gl_shadow) {
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103 Mfree(gl_shadow);
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104 gl_shadow = NULL;
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105 }
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106 } else {
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107 /* New mesa implementation */
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108 if (gl_ctx) {
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109 if (this->gl_data->OSMesaDestroyContext) {
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110 this->gl_data->OSMesaDestroyContext(gl_ctx);
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111 }
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112 gl_ctx = NULL;
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113 }
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114 }
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115
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116 if (unload) {
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117 SDL_AtariGL_UnloadLibrary(this);
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118 }
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119
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120 #endif /* HAVE_OPENGL */
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121 gl_active = 0;
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122 }
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123
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124 int SDL_AtariGL_LoadLibrary(_THIS, const char *path)
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125 {
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126 #ifdef HAVE_OPENGL
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parents: 989
diff changeset
127
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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diff changeset
128 #ifdef ENABLE_OSMESA_SHARED
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diff changeset
129 void *handle;
995
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
130 SDL_bool cancel_load;
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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131
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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diff changeset
132 if (gl_active) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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diff changeset
133 SDL_SetError("OpenGL context already created");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
134 return -1;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
135 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
136
1239
cbdb2c156aca Rollback
Patrice Mandin <patmandin@gmail.com>
parents: 1238
diff changeset
137 /* Unload previous driver */
cbdb2c156aca Rollback
Patrice Mandin <patmandin@gmail.com>
parents: 1238
diff changeset
138 SDL_AtariGL_UnloadLibrary(this);
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
139
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
140 /* Load library given by path */
1239
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parents: 1238
diff changeset
141 handle = SDL_LoadObject(path);
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
142 if (handle == NULL) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
143 /* Try to load another one */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
144 path = SDL_getenv("SDL_VIDEO_GL_DRIVER");
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
145 if ( path != NULL ) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
146 handle = SDL_LoadObject(path);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
147 }
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parents: 989
diff changeset
148
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
149 /* If it does not work, try some other */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
150 if (handle == NULL) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
151 path = PATH_OSMESA_LDG;
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parents: 989
diff changeset
152 handle = SDL_LoadObject(path);
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diff changeset
153 }
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diff changeset
154
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diff changeset
155 if (handle == NULL) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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diff changeset
156 path = PATH_MESAGL_LDG;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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diff changeset
157 handle = SDL_LoadObject(path);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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diff changeset
158 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
159
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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diff changeset
160 if (handle == NULL) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
161 path = PATH_TINYGL_LDG;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
162 handle = SDL_LoadObject(path);
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parents: 989
diff changeset
163 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
164 }
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parents: 989
diff changeset
165
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
166 if (handle == NULL) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
167 SDL_SetError("Could not load OpenGL library");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
168 return -1;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
169 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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diff changeset
170
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
171 this->gl_data->glGetIntegerv = SDL_LoadFunction(handle, "glGetIntegerv");
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
172 this->gl_data->glFinish = SDL_LoadFunction(handle, "glFinish");
995
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
Patrice Mandin <patmandin@gmail.com>
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diff changeset
173 this->gl_data->glFlush = SDL_LoadFunction(handle, "glFlush");
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
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diff changeset
174
995
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
Patrice Mandin <patmandin@gmail.com>
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diff changeset
175 cancel_load = SDL_FALSE;
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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parents: 993
diff changeset
176 if (this->gl_data->glGetIntegerv == NULL) {
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
177 cancel_load = SDL_TRUE;
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
178 } else {
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
179 /* We need either glFinish (OSMesa) or glFlush (TinyGL) */
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
180 if ((this->gl_data->glFinish == NULL) &&
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
181 (this->gl_data->glFlush == NULL)) {
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
182 cancel_load = SDL_TRUE;
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
183 }
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
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diff changeset
184 }
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
Patrice Mandin <patmandin@gmail.com>
parents: 993
diff changeset
185 if (cancel_load) {
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
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parents: 992
diff changeset
186 SDL_SetError("Could not retrieve OpenGL functions");
2662da16d668 Forgot to flush OpenGL buffer using glFinish
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diff changeset
187 SDL_UnloadObject(handle);
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
188 /* Restore pointers to static library */
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
189 SDL_AtariGL_InitPointers(this);
2662da16d668 Forgot to flush OpenGL buffer using glFinish
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parents: 992
diff changeset
190 return -1;
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
191 }
2662da16d668 Forgot to flush OpenGL buffer using glFinish
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parents: 992
diff changeset
192
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
193 /* Load functions pointers (osmesa.ldg) */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
194 this->gl_data->OSMesaCreateContextExt = SDL_LoadFunction(handle, "OSMesaCreateContextExt");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
195 this->gl_data->OSMesaDestroyContext = SDL_LoadFunction(handle, "OSMesaDestroyContext");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
196 this->gl_data->OSMesaMakeCurrent = SDL_LoadFunction(handle, "OSMesaMakeCurrent");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
197 this->gl_data->OSMesaPixelStore = SDL_LoadFunction(handle, "OSMesaPixelStore");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
198 this->gl_data->OSMesaGetProcAddress = SDL_LoadFunction(handle, "OSMesaGetProcAddress");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
199
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
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parents: 989
diff changeset
200 /* Load old functions pointers (mesa_gl.ldg, tiny_gl.ldg) */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
201 this->gl_data->OSMesaCreateLDG = SDL_LoadFunction(handle, "OSMesaCreateLDG");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
202 this->gl_data->OSMesaDestroyLDG = SDL_LoadFunction(handle, "OSMesaDestroyLDG");
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
203
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
204 gl_oldmesa = 0;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
205
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
206 if ( (this->gl_data->OSMesaCreateContextExt == NULL) ||
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
207 (this->gl_data->OSMesaDestroyContext == NULL) ||
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
208 (this->gl_data->OSMesaMakeCurrent == NULL) ||
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
209 (this->gl_data->OSMesaPixelStore == NULL) ||
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
210 (this->gl_data->OSMesaGetProcAddress == NULL)) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
211 /* Hum, maybe old library ? */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
212 if ( (this->gl_data->OSMesaCreateLDG == NULL) ||
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
213 (this->gl_data->OSMesaDestroyLDG == NULL)) {
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
214 SDL_SetError("Could not retrieve OSMesa functions");
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
215 SDL_UnloadObject(handle);
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
216 /* Restore pointers to static library */
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
217 SDL_AtariGL_InitPointers(this);
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
218 return -1;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
219 } else {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
220 gl_oldmesa = 1;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
221 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
222 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
223
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
224 this->gl_config.dll_handle = handle;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
225 if ( path ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1239
diff changeset
226 SDL_strncpy(this->gl_config.driver_path, path,
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
227 sizeof(this->gl_config.driver_path)-1);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
228 } else {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1239
diff changeset
229 SDL_strcpy(this->gl_config.driver_path, "");
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
230 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
231
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
232 #endif
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
233 this->gl_config.driver_loaded = 1;
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
234
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
235 return 0;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
236 #else
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
237 return -1;
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
238 #endif
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
239 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
240
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
241 void *SDL_AtariGL_GetProcAddress(_THIS, const char *proc)
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
242 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
243 void *func = NULL;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
244 #ifdef HAVE_OPENGL
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
245
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
246 if (this->gl_config.dll_handle) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
247 func = SDL_LoadFunction(this->gl_config.dll_handle, (void *)proc);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
248 } else if (this->gl_data->OSMesaGetProcAddress) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
249 func = this->gl_data->OSMesaGetProcAddress(proc);
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
250 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
251
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
252 #endif
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
253 return func;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
254 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
255
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
256 int SDL_AtariGL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
257 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
258 #ifdef HAVE_OPENGL
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
259 GLenum mesa_attrib;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
260 SDL_Surface *surface;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
261
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
262 if (!gl_active) {
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
263 return -1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
264 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
265
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
266 switch(attrib) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
267 case SDL_GL_RED_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
268 mesa_attrib = GL_RED_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
269 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
270 case SDL_GL_GREEN_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
271 mesa_attrib = GL_GREEN_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
272 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
273 case SDL_GL_BLUE_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
274 mesa_attrib = GL_BLUE_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
275 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
276 case SDL_GL_ALPHA_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
277 mesa_attrib = GL_ALPHA_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
278 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
279 case SDL_GL_DOUBLEBUFFER:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
280 surface = this->screen;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
281 *value = ((surface->flags & SDL_DOUBLEBUF)==SDL_DOUBLEBUF);
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
282 return 0;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
283 case SDL_GL_DEPTH_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
284 mesa_attrib = GL_DEPTH_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
285 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
286 case SDL_GL_STENCIL_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
287 mesa_attrib = GL_STENCIL_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
288 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
289 case SDL_GL_ACCUM_RED_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
290 mesa_attrib = GL_ACCUM_RED_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
291 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
292 case SDL_GL_ACCUM_GREEN_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
293 mesa_attrib = GL_ACCUM_GREEN_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
294 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
295 case SDL_GL_ACCUM_BLUE_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
296 mesa_attrib = GL_ACCUM_BLUE_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
297 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
298 case SDL_GL_ACCUM_ALPHA_SIZE:
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
299 mesa_attrib = GL_ACCUM_ALPHA_BITS;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
300 break;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
301 default :
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
302 return -1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
303 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
304
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
305 this->gl_data->glGetIntegerv(mesa_attrib, value);
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
306 return 0;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
307 #else
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
308 return -1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
309 #endif
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
310 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
311
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
312 int SDL_AtariGL_MakeCurrent(_THIS)
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
313 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
314 #ifdef HAVE_OPENGL
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
315 SDL_Surface *surface;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
316 GLenum type;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
317
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
318 if (gl_oldmesa && gl_active) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
319 return 0;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
320 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
321
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
322 if (this->gl_config.dll_handle) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
323 if ((this->gl_data->OSMesaMakeCurrent == NULL) ||
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
324 (this->gl_data->OSMesaPixelStore == NULL)) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
325 return -1;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
326 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
327 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
328
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
329 if (!gl_active) {
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
330 SDL_SetError("Invalid OpenGL context");
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
331 return -1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
332 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
333
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
334 surface = this->screen;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
335
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
336 if ((surface->format->BitsPerPixel == 15) || (surface->format->BitsPerPixel == 16)) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
337 type = GL_UNSIGNED_SHORT_5_6_5;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
338 } else {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
339 type = GL_UNSIGNED_BYTE;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
340 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
341
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
342 if (!(this->gl_data->OSMesaMakeCurrent(gl_ctx, surface->pixels, type, surface->w, surface->h))) {
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
343 SDL_SetError("Can not make OpenGL context current");
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
344 return -1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
345 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
346
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
347 /* OSMesa draws upside down */
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
348 this->gl_data->OSMesaPixelStore(OSMESA_Y_UP, 0);
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
349
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
350 return 0;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
351 #else
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
352 return -1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
353 #endif
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
354 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
355
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
356 void SDL_AtariGL_SwapBuffers(_THIS)
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
357 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
358 #ifdef HAVE_OPENGL
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
359 if (gl_active) {
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
360 if (this->gl_config.dll_handle) {
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
361 if (this->gl_data->glFinish) {
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
362 this->gl_data->glFinish();
995
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
Patrice Mandin <patmandin@gmail.com>
parents: 993
diff changeset
363 } else if (this->gl_data->glFlush) {
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
Patrice Mandin <patmandin@gmail.com>
parents: 993
diff changeset
364 this->gl_data->glFlush();
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
365 }
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
366 } else {
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
367 this->gl_data->glFinish();
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
368 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
369 gl_copyshadow(this, this->screen);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
370 gl_convert(this, this->screen);
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
371 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
372 #endif
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
373 }
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
374
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
375 void SDL_AtariGL_InitPointers(_THIS)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
376 {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
377 #if defined(HAVE_OPENGL)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
378 this->gl_data->OSMesaCreateContextExt = OSMesaCreateContextExt;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
379 this->gl_data->OSMesaDestroyContext = OSMesaDestroyContext;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
380 this->gl_data->OSMesaMakeCurrent = OSMesaMakeCurrent;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
381 this->gl_data->OSMesaPixelStore = OSMesaPixelStore;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
382 this->gl_data->OSMesaGetProcAddress = OSMesaGetProcAddress;
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
383
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
384 this->gl_data->glGetIntegerv = glGetIntegerv;
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
385 this->gl_data->glFinish = glFinish;
995
22fc5f45bbb7 TinyGL does not have glFinish, only glFlush
Patrice Mandin <patmandin@gmail.com>
parents: 993
diff changeset
386 this->gl_data->glFlush = glFlush;
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
387
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
388 this->gl_data->OSMesaCreateLDG = NULL;
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
389 this->gl_data->OSMesaDestroyLDG = NULL;
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
390 #endif
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
391 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
392
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
393 /*--- Private functions ---*/
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
394
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
395 static void SDL_AtariGL_UnloadLibrary(_THIS)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
396 {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
397 #if defined(HAVE_OPENGL)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
398 if (this->gl_config.dll_handle) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
399 SDL_UnloadObject(this->gl_config.dll_handle);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
400 this->gl_config.dll_handle = NULL;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
401
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
402 /* Restore pointers to static library */
993
2662da16d668 Forgot to flush OpenGL buffer using glFinish
Patrice Mandin <patmandin@gmail.com>
parents: 992
diff changeset
403 SDL_AtariGL_InitPointers(this);
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
404 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
405 #endif
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
406 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
407
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
408 /*--- Creation of an OpenGL context using new/old functions ---*/
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
409
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
410 #ifdef HAVE_OPENGL
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
411 static int InitNew(_THIS, SDL_Surface *current)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
412 {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
413 GLenum osmesa_format;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
414 SDL_PixelFormat *pixel_format;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
415 Uint32 redmask;
992
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
416 int recreatecontext;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
417 GLint newaccumsize;
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
418
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
419 if (this->gl_config.dll_handle) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
420 if (this->gl_data->OSMesaCreateContextExt == NULL) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
421 return 0;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
422 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
423 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
424
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
425 /* Init OpenGL context using OSMesa */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
426 gl_convert = ConvertNull;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
427 gl_copyshadow = CopyShadowNull;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
428 gl_upsidedown = SDL_FALSE;
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
429
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
430 pixel_format = current->format;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
431 redmask = pixel_format->Rmask;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
432 switch (pixel_format->BitsPerPixel) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
433 case 15:
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
434 /* 1555, big and little endian, unsupported */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
435 gl_pixelsize = 2;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
436 osmesa_format = OSMESA_RGB_565;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
437 if (redmask == 31<<10) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
438 gl_convert = Convert565To555be;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
439 } else {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
440 gl_convert = Convert565To555le;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
441 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
442 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
443 case 16:
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
444 gl_pixelsize = 2;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
445 if (redmask == 31<<11) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
446 osmesa_format = OSMESA_RGB_565;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
447 } else {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
448 /* 565, little endian, unsupported */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
449 osmesa_format = OSMESA_RGB_565;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
450 gl_convert = Convert565le;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
451 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
452 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
453 case 24:
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
454 gl_pixelsize = 3;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
455 if (redmask == 255<<16) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
456 osmesa_format = OSMESA_RGB;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
457 } else {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
458 osmesa_format = OSMESA_BGR;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
459 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
460 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
461 case 32:
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
462 gl_pixelsize = 4;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
463 if (redmask == 255<<16) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
464 osmesa_format = OSMESA_ARGB;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
465 } else if (redmask == 255<<8) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
466 osmesa_format = OSMESA_BGRA;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
467 } else if (redmask == 255<<24) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
468 osmesa_format = OSMESA_RGBA;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
469 } else {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
470 /* ABGR format unsupported */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
471 osmesa_format = OSMESA_BGRA;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
472 gl_convert = ConvertBGRAToABGR;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
473 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
474 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
475 default:
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
476 gl_pixelsize = 1;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
477 osmesa_format = OSMESA_COLOR_INDEX;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
478 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
479 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
480
992
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
481 /* Try to keep current context if possible */
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
482 newaccumsize =
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
483 this->gl_config.accum_red_size +
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
484 this->gl_config.accum_green_size +
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
485 this->gl_config.accum_blue_size +
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
486 this->gl_config.accum_alpha_size;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
487 recreatecontext=1;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
488 if (gl_ctx &&
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
489 (gl_curformat == osmesa_format) &&
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
490 (gl_curdepth == this->gl_config.depth_size) &&
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
491 (gl_curstencil == this->gl_config.stencil_size) &&
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
492 (gl_curaccum == newaccumsize)) {
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
493 recreatecontext = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
494 }
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
495 if (recreatecontext) {
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
496 SDL_AtariGL_Quit(this, SDL_FALSE);
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
497
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
498 gl_ctx = this->gl_data->OSMesaCreateContextExt(
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
499 osmesa_format, this->gl_config.depth_size,
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
500 this->gl_config.stencil_size, newaccumsize, NULL );
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
501
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
502 if (gl_ctx) {
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
503 gl_curformat = osmesa_format;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
504 gl_curdepth = this->gl_config.depth_size;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
505 gl_curstencil = this->gl_config.stencil_size;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
506 gl_curaccum = newaccumsize;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
507 } else {
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
508 gl_curformat = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
509 gl_curdepth = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
510 gl_curstencil = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
511 gl_curaccum = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
512 }
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
513 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
514
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
515 return (gl_ctx != NULL);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
516 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
517
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
518
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
519 static int InitOld(_THIS, SDL_Surface *current)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
520 {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
521 GLenum osmesa_format;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
522 SDL_PixelFormat *pixel_format;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
523 Uint32 redmask;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
524 int recreatecontext, tinygl_present;
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
525
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
526 if (this->gl_config.dll_handle) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
527 if (this->gl_data->OSMesaCreateLDG == NULL) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
528 return 0;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
529 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
530 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
531
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
532 /* TinyGL only supports VDI_RGB (OSMESA_RGB) */
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
533 tinygl_present=0;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
534 if (this->gl_config.dll_handle) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
535 if (this->gl_data->glFinish == NULL) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
536 tinygl_present=1;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
537 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
538 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
539
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
540 /* Init OpenGL context using OSMesa */
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
541 gl_convert = ConvertNull;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
542 gl_copyshadow = CopyShadowNull;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
543 gl_upsidedown = SDL_FALSE;
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
544
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
545 pixel_format = current->format;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
546 redmask = pixel_format->Rmask;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
547 switch (pixel_format->BitsPerPixel) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
548 case 15:
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
549 /* 15 bits unsupported */
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
550 if (tinygl_present) {
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
551 gl_pixelsize = 3;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
552 osmesa_format = VDI_RGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
553 if (redmask == 31<<10) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
554 gl_copyshadow = CopyShadowRGBTo555;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
555 } else {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
556 gl_copyshadow = CopyShadowRGBTo565;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
557 gl_convert = Convert565To555le;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
558 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
559 } else {
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
560 gl_pixelsize = 4;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
561 gl_upsidedown = SDL_TRUE;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
562 osmesa_format = OSMESA_ARGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
563 if (redmask == 31<<10) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
564 gl_copyshadow = CopyShadow8888To555;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
565 } else {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
566 gl_copyshadow = CopyShadow8888To565;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
567 gl_convert = Convert565To555le;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
568 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
569 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
570 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
571 case 16:
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
572 /* 16 bits unsupported */
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
573 if (tinygl_present) {
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
574 gl_pixelsize = 3;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
575 osmesa_format = VDI_RGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
576 gl_copyshadow = CopyShadowRGBTo565;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
577 if (redmask != 31<<11) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
578 /* 565, little endian, unsupported */
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
579 gl_convert = Convert565le;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
580 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
581 } else {
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
582 gl_pixelsize = 4;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
583 gl_upsidedown = SDL_TRUE;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
584 osmesa_format = OSMESA_ARGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
585 gl_copyshadow = CopyShadow8888To565;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
586 if (redmask != 31<<11) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
587 /* 565, little endian, unsupported */
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
588 gl_convert = Convert565le;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
589 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
590 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
591 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
592 case 24:
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
593 gl_pixelsize = 3;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
594 if (tinygl_present) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
595 osmesa_format = VDI_RGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
596 gl_copyshadow = CopyShadowDirect;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
597 if (redmask != 255<<16) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
598 gl_copyshadow = CopyShadowRGBSwap;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
599 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
600 } else {
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
601 gl_copyshadow = CopyShadowDirect;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
602 gl_upsidedown = SDL_TRUE;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
603 if (redmask == 255<<16) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
604 osmesa_format = OSMESA_RGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
605 } else {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
606 osmesa_format = OSMESA_BGR;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
607 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
608 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
609 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
610 case 32:
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
611 if (tinygl_present) {
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
612 gl_pixelsize = 3;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
613 osmesa_format = VDI_RGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
614 gl_copyshadow = CopyShadowRGBToARGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
615 if (redmask == 255) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
616 gl_convert = CopyShadowRGBToABGR;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
617 } else if (redmask == 255<<8) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
618 gl_convert = CopyShadowRGBToBGRA;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
619 } else if (redmask == 255<<24) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
620 gl_convert = CopyShadowRGBToRGBA;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
621 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
622 } else {
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
623 gl_pixelsize = 4;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
624 gl_upsidedown = SDL_TRUE;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
625 gl_copyshadow = CopyShadowDirect;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
626 if (redmask == 255<<16) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
627 osmesa_format = OSMESA_ARGB;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
628 } else if (redmask == 255<<8) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
629 osmesa_format = OSMESA_BGRA;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
630 } else if (redmask == 255<<24) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
631 osmesa_format = OSMESA_RGBA;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
632 } else {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
633 /* ABGR format unsupported */
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
634 osmesa_format = OSMESA_BGRA;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
635 gl_convert = ConvertBGRAToABGR;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
636 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
637 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
638 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
639 default:
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
640 if (tinygl_present) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
641 SDL_AtariGL_Quit(this, SDL_FALSE);
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
642 return 0;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
643 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
644 gl_pixelsize = 1;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
645 gl_copyshadow = CopyShadowDirect;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
646 osmesa_format = OSMESA_COLOR_INDEX;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
647 break;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
648 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
649
992
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
650 /* Try to keep current context if possible */
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
651 recreatecontext=1;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
652 if (gl_shadow &&
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
653 (gl_curformat == osmesa_format) &&
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
654 (gl_curwidth == current->w) &&
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
655 (gl_curheight == current->h)) {
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
656 recreatecontext = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
657 }
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
658 if (recreatecontext) {
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
659 SDL_AtariGL_Quit(this, SDL_FALSE);
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
660
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
661 gl_shadow = this->gl_data->OSMesaCreateLDG(
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
662 osmesa_format, GL_UNSIGNED_BYTE, current->w, current->h
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
663 );
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
664
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
665 if (gl_shadow) {
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
666 gl_curformat = osmesa_format;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
667 gl_curwidth = current->w;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
668 gl_curheight = current->h;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
669 } else {
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
670 gl_curformat = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
671 gl_curwidth = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
672 gl_curheight = 0;
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
673 }
0324ce32b2d9 Keep current OpenGL context when possible
Patrice Mandin <patmandin@gmail.com>
parents: 991
diff changeset
674 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
675
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
676 return (gl_shadow != NULL);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
677 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
678
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
679 /*--- Conversions routines from shadow buffer to the screen ---*/
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
680
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
681 static void CopyShadowNull(_THIS, SDL_Surface *surface)
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
682 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
683 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
684
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
685 static void CopyShadowDirect(_THIS, SDL_Surface *surface)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
686 {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
687 int y, srcpitch, dstpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
688 Uint8 *srcline, *dstline;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
689
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
690 srcline = gl_shadow;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
691 srcpitch = surface->w * gl_pixelsize;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
692 dstline = surface->pixels;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
693 dstpitch = surface->pitch;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
694 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
695 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
696 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
697 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
698
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
699 for (y=0; y<surface->h; y++) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1239
diff changeset
700 SDL_memcpy(dstline, srcline, srcpitch);
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
701
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
702 srcline += srcpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
703 dstline += dstpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
704 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
705 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
706
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
707 static void CopyShadowRGBTo555(_THIS, SDL_Surface *surface)
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
708 {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
709 int x,y, srcpitch, dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
710 Uint16 *dstline, *dstcol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
711 Uint8 *srcline, *srccol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
712
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
713 srcline = (Uint8 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
714 srcpitch = surface->w * gl_pixelsize;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
715 dstline = surface->pixels;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
716 dstpitch = surface->pitch >>1;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
717 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
718 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
719 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
720 }
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
721
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
722 for (y=0; y<surface->h; y++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
723 srccol = srcline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
724 dstcol = dstline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
725 for (x=0; x<surface->w; x++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
726 Uint16 dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
727
1003
ece5ab8acd1c Wrong RGB24 to RGB16 conversion
Patrice Mandin <patmandin@gmail.com>
parents: 1002
diff changeset
728 dstcolor = ((*srccol++)<<7) & (31<<10);
ece5ab8acd1c Wrong RGB24 to RGB16 conversion
Patrice Mandin <patmandin@gmail.com>
parents: 1002
diff changeset
729 dstcolor |= ((*srccol++)<<2) & (31<<5);
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
730 dstcolor |= ((*srccol++)>>3) & 31;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
731 *dstcol++ = dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
732 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
733
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
734 srcline += srcpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
735 dstline += dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
736 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
737 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
738
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
739 static void CopyShadowRGBTo565(_THIS, SDL_Surface *surface)
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
740 {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
741 int x,y, srcpitch, dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
742 Uint16 *dstline, *dstcol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
743 Uint8 *srcline, *srccol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
744
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
745 srcline = (Uint8 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
746 srcpitch = surface->w * gl_pixelsize;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
747 dstline = surface->pixels;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
748 dstpitch = surface->pitch >>1;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
749 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
750 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
751 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
752 }
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
753
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
754 for (y=0; y<surface->h; y++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
755 srccol = srcline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
756 dstcol = dstline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
757
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
758 for (x=0; x<surface->w; x++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
759 Uint16 dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
760
1003
ece5ab8acd1c Wrong RGB24 to RGB16 conversion
Patrice Mandin <patmandin@gmail.com>
parents: 1002
diff changeset
761 dstcolor = ((*srccol++)<<8) & (31<<11);
ece5ab8acd1c Wrong RGB24 to RGB16 conversion
Patrice Mandin <patmandin@gmail.com>
parents: 1002
diff changeset
762 dstcolor |= ((*srccol++)<<3) & (63<<5);
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
763 dstcolor |= ((*srccol++)>>3) & 31;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
764 *dstcol++ = dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
765 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
766
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
767 srcline += srcpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
768 dstline += dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
769 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
770 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
771
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
772 static void CopyShadowRGBSwap(_THIS, SDL_Surface *surface)
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
773 {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
774 int x,y, srcpitch, dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
775 Uint8 *dstline, *dstcol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
776 Uint8 *srcline, *srccol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
777
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
778 srcline = (Uint8 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
779 srcpitch = surface->w * gl_pixelsize;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
780 dstline = surface->pixels;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
781 dstpitch = surface->pitch;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
782 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
783 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
784 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
785 }
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
786
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
787 for (y=0; y<surface->h; y++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
788 srccol = srcline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
789 dstcol = dstline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
790
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
791 for (x=0; x<surface->w; x++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
792 *dstcol++ = srccol[2];
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
793 *dstcol++ = srccol[1];
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
794 *dstcol++ = srccol[0];
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
795 srccol += 3;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
796 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
797
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
798 srcline += srcpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
799 dstline += dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
800 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
801 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
802
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
803 static void CopyShadowRGBToARGB(_THIS, SDL_Surface *surface)
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
804 {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
805 int x,y, srcpitch, dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
806 Uint32 *dstline, *dstcol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
807 Uint8 *srcline, *srccol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
808
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
809 srcline = (Uint8 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
810 srcpitch = surface->w * gl_pixelsize;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
811 dstline = surface->pixels;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
812 dstpitch = surface->pitch >>2;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
813 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
814 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
815 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
816 }
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
817
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
818 for (y=0; y<surface->h; y++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
819 srccol = srcline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
820 dstcol = dstline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
821
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
822 for (x=0; x<surface->w; x++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
823 Uint32 dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
824
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
825 dstcolor = (*srccol++)<<16;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
826 dstcolor |= (*srccol++)<<8;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
827 dstcolor |= *srccol++;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
828
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
829 *dstcol++ = dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
830 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
831
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
832 srcline += srcpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
833 dstline += dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
834 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
835 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
836
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
837 static void CopyShadowRGBToABGR(_THIS, SDL_Surface *surface)
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
838 {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
839 int x,y, srcpitch, dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
840 Uint32 *dstline, *dstcol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
841 Uint8 *srcline, *srccol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
842
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
843 srcline = (Uint8 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
844 srcpitch = surface->w * gl_pixelsize;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
845 dstline = surface->pixels;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
846 dstpitch = surface->pitch >>2;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
847 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
848 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
849 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
850 }
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
851
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
852 for (y=0; y<surface->h; y++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
853 srccol = srcline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
854 dstcol = dstline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
855
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
856 for (x=0; x<surface->w; x++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
857 Uint32 dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
858
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
859 dstcolor = *srccol++;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
860 dstcolor |= (*srccol++)<<8;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
861 dstcolor |= (*srccol++)<<16;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
862
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
863 *dstcol++ = dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
864 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
865
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
866 srcline += srcpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
867 dstline += dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
868 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
869 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
870
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
871 static void CopyShadowRGBToBGRA(_THIS, SDL_Surface *surface)
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
872 {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
873 int x,y, srcpitch, dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
874 Uint32 *dstline, *dstcol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
875 Uint8 *srcline, *srccol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
876
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
877 srcline = (Uint8 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
878 srcpitch = surface->w * gl_pixelsize;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
879 dstline = surface->pixels;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
880 dstpitch = surface->pitch >>2;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
881 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
882 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
883 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
884 }
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
885
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
886 for (y=0; y<surface->h; y++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
887 srccol = srcline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
888 dstcol = dstline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
889
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
890 for (x=0; x<surface->w; x++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
891 Uint32 dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
892
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
893 dstcolor = (*srccol++)<<8;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
894 dstcolor |= (*srccol++)<<16;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
895 dstcolor |= (*srccol++)<<24;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
896
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
897 *dstcol++ = dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
898 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
899
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
900 srcline += srcpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
901 dstline += dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
902 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
903 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
904
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
905 static void CopyShadowRGBToRGBA(_THIS, SDL_Surface *surface)
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
906 {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
907 int x,y, srcpitch, dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
908 Uint32 *dstline, *dstcol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
909 Uint8 *srcline, *srccol;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
910
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
911 srcline = (Uint8 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
912 srcpitch = surface->w * gl_pixelsize;
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
913 dstline = surface->pixels;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
914 dstpitch = surface->pitch >>2;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
915 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
916 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
917 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
918 }
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
919
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
920 for (y=0; y<surface->h; y++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
921 srccol = srcline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
922 dstcol = dstline;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
923
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
924 for (x=0; x<surface->w; x++) {
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
925 Uint32 dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
926
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
927 dstcolor = (*srccol++)<<24;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
928 dstcolor |= (*srccol++)<<16;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
929 dstcolor |= (*srccol++)<<8;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
930
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
931 *dstcol++ = dstcolor;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
932 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
933
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
934 srcline += srcpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
935 dstline += dstpitch;
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
936 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
937 }
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
938
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
939 static void CopyShadow8888To555(_THIS, SDL_Surface *surface)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
940 {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
941 int x,y, srcpitch, dstpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
942 Uint16 *dstline, *dstcol;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
943 Uint32 *srcline, *srccol;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
944
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
945 srcline = (Uint32 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
946 srcpitch = (surface->w * gl_pixelsize) >>2;
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
947 dstline = surface->pixels;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
948 dstpitch = surface->pitch >>1;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
949 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
950 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
951 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
952 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
953
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
954 for (y=0; y<surface->h; y++) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
955 srccol = srcline;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
956 dstcol = dstline;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
957 for (x=0; x<surface->w; x++) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
958 Uint32 srccolor;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
959 Uint16 dstcolor;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
960
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
961 srccolor = *srccol++;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
962 dstcolor = (srccolor>>9) & (31<<10);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
963 dstcolor |= (srccolor>>6) & (31<<5);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
964 dstcolor |= (srccolor>>3) & 31;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
965 *dstcol++ = dstcolor;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
966 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
967
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
968 srcline += srcpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
969 dstline += dstpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
970 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
971 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
972
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
973 static void CopyShadow8888To565(_THIS, SDL_Surface *surface)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
974 {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
975 int x,y, srcpitch, dstpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
976 Uint16 *dstline, *dstcol;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
977 Uint32 *srcline, *srccol;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
978
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
979 srcline = (Uint32 *)gl_shadow;
1002
13aa96c76e86 Wrong pixel size for source buffer for old drivers
Patrice Mandin <patmandin@gmail.com>
parents: 1000
diff changeset
980 srcpitch = (surface->w * gl_pixelsize) >> 2;
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
981 dstline = surface->pixels;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
982 dstpitch = surface->pitch >>1;
1005
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
983 if (gl_upsidedown) {
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
984 srcline += (surface->h-1)*srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
985 srcpitch = -srcpitch;
2ab1cb02a44e Some Atari OpenGL implementations draw upside down
Patrice Mandin <patmandin@gmail.com>
parents: 1003
diff changeset
986 }
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
987
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
988 for (y=0; y<surface->h; y++) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
989 srccol = srcline;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
990 dstcol = dstline;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
992 for (x=0; x<surface->w; x++) {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
993 Uint32 srccolor;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
994 Uint16 dstcolor;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
995
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
996 srccolor = *srccol++;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
997 dstcolor = (srccolor>>8) & (31<<11);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
998 dstcolor |= (srccolor>>5) & (63<<5);
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
999 dstcolor |= (srccolor>>3) & 31;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1000 *dstcol++ = dstcolor;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1001 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1002
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1003 srcline += srcpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1004 dstline += dstpitch;
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1005 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1006 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1007
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1008 /*--- Conversions routines in the screen ---*/
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1009
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1010 static void ConvertNull(_THIS, SDL_Surface *surface)
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1011 {
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1012 }
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1013
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1014 static void Convert565To555be(_THIS, SDL_Surface *surface)
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1015 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1016 int x,y, pitch;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1017 unsigned short *line, *pixel;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1018
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1019 line = surface->pixels;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1020 pitch = surface->pitch >> 1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1021 for (y=0; y<surface->h; y++) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1022 pixel = line;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1023 for (x=0; x<surface->w; x++) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1024 unsigned short color = *pixel;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1025
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1026 *pixel++ = (color & 0x1f)|((color>>1) & 0xffe0);
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1027 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1028
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1029 line += pitch;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1030 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1031 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1032
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1033 static void Convert565To555le(_THIS, SDL_Surface *surface)
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1034 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1035 int x,y, pitch;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1036 unsigned short *line, *pixel;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1037
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1038 line = surface->pixels;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1039 pitch = surface->pitch >>1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1040 for (y=0; y<surface->h; y++) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1041 pixel = line;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1042 for (x=0; x<surface->w; x++) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1043 unsigned short color = *pixel;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1044
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1045 color = (color & 0x1f)|((color>>1) & 0xffe0);
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1046 *pixel++ = SDL_Swap16(color);
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1047 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1048
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1049 line += pitch;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1050 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1051 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1052
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1053 static void Convert565le(_THIS, SDL_Surface *surface)
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1054 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1055 int x,y, pitch;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1056 unsigned short *line, *pixel;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1057
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1058 line = surface->pixels;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1059 pitch = surface->pitch >>1;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1060 for (y=0; y<surface->h; y++) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1061 pixel = line;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1062 for (x=0; x<surface->w; x++) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1063 unsigned short color = *pixel;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1064
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1065 *pixel++ = SDL_Swap16(color);
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1066 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1067
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1068 line += pitch;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1069 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1070 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1071
991
12b13601a544 Final touches to OSMesa OpenGL support on Atari, using loadable libraries. Hope SDL 1.2.8 is out soon.
Patrice Mandin <patmandin@gmail.com>
parents: 989
diff changeset
1072 static void ConvertBGRAToABGR(_THIS, SDL_Surface *surface)
989
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1073 {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1074 int x,y, pitch;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1075 unsigned long *line, *pixel;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1076
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1077 line = surface->pixels;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1078 pitch = surface->pitch >>2;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1079 for (y=0; y<surface->h; y++) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1080 pixel = line;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1081 for (x=0; x<surface->w; x++) {
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1082 unsigned long color = *pixel;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1083
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1084 *pixel++ = (color<<24)|(color>>8);
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1085 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1086
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1087 line += pitch;
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1088 }
475166d13b44 Factorize OSMesa OpenGL code for Atari drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
1089 }
1000
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
1090
fbeac9312843 TinyGL only support RGB24 color buffer
Patrice Mandin <patmandin@gmail.com>
parents: 995
diff changeset
1091 #endif /* HAVE_OPENGL */