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annotate src/video/directfb/SDL_DirectFB_video.h @ 4590:1ad70fb49fcb

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Fix so many things that there is little place in this column to list them all but the result is that blending modes just work now for drawing primitives. Fixes involved: 1. Fix handling of alpha channel when SDL_BLENDMODE_NONE is set. 2. Make xrendercolor use floating-point values for color channels and then convert to 16 bit ints. 3. Fix handling of visuals in SDL_x11modes.c so that a 32 bit ARGB visual is used. 4. Fix the background pixel value in SDL_x11window.c so that the window background has an alpha value of 0xFF and not 0.
author Sunny Sachanandani <sunnysachanandani@gmail.com>
date Fri, 09 Jul 2010 21:36:41 +0530
parents f7b03b6838cb
children 25b9cd8bdc30
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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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 Lesser 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 Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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 #include "SDL_config.h"
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23
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24 #ifndef _SDL_DirectFB_video_h
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25 #define _SDL_DirectFB_video_h
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26
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27 #include "../SDL_sysvideo.h"
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28
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29 #include <directfb.h>
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30 #include <directfb_version.h>
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31
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32 #include "SDL_mouse.h"
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33
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34 #define DEBUG 0
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35 #define LOG_CHANNEL stdout
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36
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37 #define DFB_VERSIONNUM(X, Y, Z) \
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38 ((X)*1000 + (Y)*100 + (Z))
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39
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40 #define DFB_COMPILEDVERSION \
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41 DFB_VERSIONNUM(DIRECTFB_MAJOR_VERSION, DIRECTFB_MINOR_VERSION, DIRECTFB_MICRO_VERSION)
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42
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43 #define DFB_VERSION_ATLEAST(X, Y, Z) \
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44 (DFB_COMPILEDVERSION >= DFB_VERSIONNUM(X, Y, Z))
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45
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46 #if (DFB_VERSION_ATLEAST(1,0,0))
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47 #define SDL_DIRECTFB_OPENGL 1
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48 #include <directfbgl.h>
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49 #else
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50 #error "SDL_DIRECTFB: Please compile against libdirectfb version >= 1.0.0"
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51 #endif
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52
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53 #if SDL_DIRECTFB_OPENGL
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54 #include "SDL_loadso.h"
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55 #endif
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56
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57 #include "SDL_DirectFB_events.h"
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58 /*
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59 * #include "SDL_DirectFB_gamma.h"
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60 * #include "SDL_DirectFB_keyboard.h"
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61 */
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62 #include "SDL_DirectFB_modes.h"
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63 #include "SDL_DirectFB_mouse.h"
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64 #include "SDL_DirectFB_opengl.h"
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65 #include "SDL_DirectFB_window.h"
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66 #include "SDL_DirectFB_WM.h"
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67
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68 #define DFBENV_USE_YUV_UNDERLAY "SDL_DIRECTFB_YUV_UNDERLAY" /* Default: off */
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69 #define DFBENV_USE_YUV_DIRECT "SDL_DIRECTFB_YUV_DIRECT" /* Default: off */
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70 #define DFBENV_USE_X11_CHECK "SDL_DIRECTFB_X11_CHECK" /* Default: on */
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71 #define DFBENV_USE_LINUX_INPUT "SDL_DIRECTFB_LINUX_INPUT" /* Default: on */
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72 #define DFBENV_USE_WM "SDL_DIRECTFB_WM" /* Default: off */
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73
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74 #define SDL_DFB_RELEASE(x) do { if ( (x) != NULL ) { x->Release(x); x = NULL; } } while (0)
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75 #define SDL_DFB_FREE(x) do { if ( (x) != NULL ) { SDL_free(x); x = NULL; } } while (0)
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76 #define SDL_DFB_UNLOCK(x) do { if ( (x) != NULL ) { x->Unlock(x); } } while (0)
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77
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78 #if DEBUG
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79 #define SDL_DFB_DEBUG(x...) do { fprintf(LOG_CHANNEL, "%s:", __FUNCTION__); fprintf(LOG_CHANNEL, x); } while (0)
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80 #define SDL_DFB_DEBUGC(x...) do { fprintf(LOG_CHANNEL, x); } while (0)
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81 #else
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82 #define SDL_DFB_DEBUG(x...) do { } while (0)
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83 #define SDL_DFB_DEBUGC(x...) do { } while (0)
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84 #endif
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85
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86 #define SDL_DFB_CONTEXT "SDL_DirectFB"
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87
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88 #define SDL_DFB_ERR(x...) \
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89 do { \
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90 fprintf(LOG_CHANNEL, "%s: %s <%d>:\n\t", \
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91 SDL_DFB_CONTEXT, __FILE__, __LINE__ ); \
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92 fprintf(LOG_CHANNEL, x ); \
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93 } while (0)
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94
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95 #define SDL_DFB_CHECK(x...) \
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96 do { \
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97 ret = x; \
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98 if (ret != DFB_OK) { \
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99 fprintf(LOG_CHANNEL, "%s <%d>:\n\t", __FILE__, __LINE__ ); \
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100 fprintf(LOG_CHANNEL, "\t%s\n", #x ); \
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101 fprintf(LOG_CHANNEL, "\t%s\n", DirectFBErrorString (ret) ); \
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102 SDL_SetError( #x, DirectFBErrorString (ret) ); \
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103 } \
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104 } while (0)
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105
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106 #define SDL_DFB_CHECKERR(x...) \
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107 do { \
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108 ret = x; \
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109 if (ret != DFB_OK) { \
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110 fprintf(LOG_CHANNEL, "%s <%d>:\n", __FILE__, __LINE__ ); \
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111 fprintf(LOG_CHANNEL, "\t%s\n", #x ); \
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112 fprintf(LOG_CHANNEL, "\t%s\n", DirectFBErrorString (ret) ); \
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113 SDL_SetError( #x, DirectFBErrorString (ret) ); \
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114 goto error; \
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115 } \
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116 } while (0)
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117
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118 #define SDL_DFB_CALLOC(r, n, s) \
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119 do { \
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120 r = SDL_calloc (n, s); \
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121 if (!(r)) { \
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122 fprintf( LOG_CHANNEL, "%s <%d>:\n\t", __FILE__, __LINE__ ); \
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123 SDL_OutOfMemory(); \
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124 goto error; \
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125 } \
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126 } while (0)
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127
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128 /* Private display data */
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129
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130 #define SDL_DFB_DEVICEDATA(dev) DFB_DeviceData *devdata = (dev ? (DFB_DeviceData *) ((dev)->driverdata) : NULL)
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131
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132 #define DFB_MAX_SCREENS 10
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133
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134 typedef struct _DFB_DeviceData DFB_DeviceData;
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135 struct _DFB_DeviceData
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136 {
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137 int initialized;
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138
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139 IDirectFB *dfb;
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140 int num_mice;
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141 int mouse_id[0x100];
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142 int num_keyboard;
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143 struct
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144 {
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145 int is_generic;
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146 int id;
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147 } keyboard[10];
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148 DFB_WindowData *firstwin;
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149
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150 int use_yuv_underlays;
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151 int use_linux_input;
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152 int has_own_wm;
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153
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154 /* OpenGL */
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155 void (*glFinish) (void);
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156 void (*glFlush) (void);
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157
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158 /* global events */
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159 IDirectFBEventBuffer *events;
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160 };
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161
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162 #endif /* _SDL_DirectFB_video_h */