3168
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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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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 Stefan Klug
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23 klug.stefan@gmx.de
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24 */
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25 #include "SDL_config.h"
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26
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27 #if SDL_VIDEO_RENDER_GAPI
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28
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29 #include "SDL_win32video.h"
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30 //#include "../SDL_sysvideo.h"
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31 #include "../SDL_yuv_sw_c.h"
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32 #include "../SDL_renderer_sw.h"
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33
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34 #include "SDL_gapirender_c.h"
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35
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36 #define GAPI_RENDERER_DEBUG 1
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37
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38 /* GAPI renderer implementation */
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39
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40 static SDL_Renderer *GAPI_CreateRenderer(SDL_Window * window, Uint32 flags);
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41 static int GAPI_RenderPoint(SDL_Renderer * renderer, int x, int y);
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42 static int GAPI_RenderLine(SDL_Renderer * renderer, int x1, int y1,
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43 int x2, int y2);
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44 static int GAPI_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect);
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45 static int GAPI_RenderCopy(SDL_Renderer * renderer,
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46 SDL_Texture * texture,
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47 const SDL_Rect * srcrect,
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48 const SDL_Rect * dstrect);
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49 static void GAPI_RenderPresent(SDL_Renderer * renderer);
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50 static void GAPI_DestroyRenderer(SDL_Renderer * renderer);
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51
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52
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53 SDL_RenderDriver GAPI_RenderDriver = {
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54 GAPI_CreateRenderer,
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55 {
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56 "gapi",
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57 (SDL_RENDERER_SINGLEBUFFER),
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58 }
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59 };
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60
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61 static HMODULE g_hGapiLib = 0;
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62
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63 // for testing with GapiEmu
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64 #define USE_GAPI_EMU 0
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65 #define EMULATE_AXIM_X30 0
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66
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67 #if 0
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68 #define GAPI_LOG(...) printf(__VA_ARGS__)
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69 #else
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70 #define GAPI_LOG(...)
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71 #endif
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72
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73
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74 #if USE_GAPI_EMU && !REPORT_VIDEO_INFO
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75 #pragma message("Warning: Using GapiEmu in release build. I assume you'd like to set USE_GAPI_EMU to zero.")
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76 #endif
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77
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78
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79 static void
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80 GAPI_SetError(const char *prefix, HRESULT result)
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81 {
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82 const char *error;
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83
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84 switch (result) {
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85 default:
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86 error = "UNKNOWN";
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87 break;
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88 }
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89 SDL_SetError("%s: %s", prefix, error);
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90 }
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91
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92 void
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93 GAPI_AddRenderDriver(_THIS)
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94 {
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95 /* TODO: should we check for support of GetRawFramebuffer here?
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96 */
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97 #if USE_GAPI_EMU
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98 g_hGapiLib = LoadLibrary(L"GAPI_Emu.dll");
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99 #else
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100 g_hGapiLib = LoadLibrary(L"\\Windows\\gx.dll");
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101 #endif
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102
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103 if (g_hGapiLib) {
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104 #define LINK(name,import) gx.name = (PFN##name)GetProcAddress( g_hGapiLib, L##import );
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105
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106 LINK(GXOpenDisplay, "?GXOpenDisplay@@YAHPAUHWND__@@K@Z")
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107 LINK(GXCloseDisplay, "?GXCloseDisplay@@YAHXZ")
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108 LINK(GXBeginDraw, "?GXBeginDraw@@YAPAXXZ")
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109 LINK(GXEndDraw, "?GXEndDraw@@YAHXZ")
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110 LINK(GXOpenInput, "?GXOpenInput@@YAHXZ")
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111 LINK(GXCloseInput, "?GXCloseInput@@YAHXZ")
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112 LINK(GXGetDisplayProperties,
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113 "?GXGetDisplayProperties@@YA?AUGXDisplayProperties@@XZ")
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114 LINK(GXGetDefaultKeys, "?GXGetDefaultKeys@@YA?AUGXKeyList@@H@Z")
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115 LINK(GXSuspend, "?GXSuspend@@YAHXZ")
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116 LINK(GXResume, "?GXResume@@YAHXZ")
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117 LINK(GXSetViewport, "?GXSetViewport@@YAHKKKK@Z")
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118 LINK(GXIsDisplayDRAMBuffer, "?GXIsDisplayDRAMBuffer@@YAHXZ")
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119
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120 /* wrong gapi.dll */
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121 if (!gx.GXOpenDisplay) {
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122 FreeLibrary(g_hGapiLib);
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123 g_hGapiLib = 0;
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124 }
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125 #undef LINK
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126 }
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127
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128 SDL_AddRenderDriver(0, &GAPI_RenderDriver);
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129 }
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130
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131 typedef enum
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132 {
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133 USAGE_GX_FUNCS = 0x0001, /* enable to use GXOpen/GXClose/GXBeginDraw... */
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134 USAGE_DATA_PTR_CONSTANT = 0x0002 /* the framebuffer is at a constant location, don't use values from GXBeginDraw() */
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135 } GAPI_UsageFlags;
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136
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137
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138
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139 typedef struct
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140 {
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141 int w;
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142 int h;
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143 int xPitch; /* bytes to move to go to the next pixel */
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144 int yPitch; /* bytes to move to go to the next line */
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145 int offset; /* data offset, to add to the data returned from GetFramebuffer, before processing */
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146
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147 void *data;
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148 Uint32 usageFlags; /* these flags contain options to define screen handling and to reliably workarounds */
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149
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150 Uint32 format; /* pixel format as defined in SDL_pixels.h */
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151
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152 } GAPI_RenderData;
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153
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154
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155 static Uint32
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156 GuessPixelFormatFromBpp(int bpp)
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157 {
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158 switch (bpp) {
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159 case 15:
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160 return SDL_PIXELFORMAT_RGB555;
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161 case 16:
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162 return SDL_PIXELFORMAT_RGB565;
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163 default:
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164 return SDL_PIXELFORMAT_UNKNOWN;
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165 break;
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166 }
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167 }
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168
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169 static GAPI_RenderData *
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170 FillRenderDataRawFramebuffer(SDL_Window * window)
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171 {
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172 RawFrameBufferInfo rbi;
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173 GAPI_RenderData *renderdata;
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174 HDC hdc;
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175
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176 //TODO should we use the hdc of the window?
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177 hdc = GetDC(NULL);
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178 int result = ExtEscape(hdc, GETRAWFRAMEBUFFER, 0, NULL,
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179 sizeof(RawFrameBufferInfo),
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180 (char *) &rbi);
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181 ReleaseDC(NULL, hdc);
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182
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183 if (!(result > 0)) {
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184 return NULL;
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185 }
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186
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187 /* Asus A696 returns wrong results so we do a sanity check
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188 See:
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189 http://groups.google.com/group/microsoft.public.smartphone.developer/browse_thread/thread/4fde5bddd477de81
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190 */
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191 if (rbi.cxPixels <= 0 ||
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192 rbi.cyPixels <= 0 ||
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193 rbi.cxStride == 0 || rbi.cyStride == 0 || rbi.pFramePointer == 0) {
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194 return NULL;
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195 }
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196
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197
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198 renderdata = (GAPI_RenderData *) SDL_calloc(1, sizeof(*renderdata));
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199 if (!renderdata) {
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200 SDL_OutOfMemory();
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201 return NULL;
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202 }
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203 //Try to match the window size
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204 //TODO add rotation support
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205 if (rbi.cxPixels != window->w || rbi.cyPixels != window->h) {
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206 SDL_free(renderdata);
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207 return NULL;
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208 }
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209 //Check that the display uses a known display format
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210 switch (rbi.wFormat) {
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211 case FORMAT_565:
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212 renderdata->format = SDL_PIXELFORMAT_RGB565;
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213 break;
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214 case FORMAT_555:
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215 renderdata->format = SDL_PIXELFORMAT_RGB555;
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216 break;
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217 default:
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218 //TODO we should add support for other formats
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219 SDL_free(renderdata);
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220 return NULL;
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221 }
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222
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223 renderdata->usageFlags = USAGE_DATA_PTR_CONSTANT;
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224 renderdata->data = rbi.pFramePointer;
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225 renderdata->w = rbi.cxPixels;
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226 renderdata->h = rbi.cyPixels;
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227 renderdata->xPitch = rbi.cxStride;
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228 renderdata->yPitch = rbi.cyStride;
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229
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230 return renderdata;
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231
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232 }
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233
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234
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235 static GAPI_RenderData *
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236 FillRenderDataGAPI(SDL_Window * window)
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237 {
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238 GAPI_RenderData *renderdata;
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239 struct GXDisplayProperties gxdp;
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240 int tmp;
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241
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242 #ifdef _ARM_
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243 WCHAR oemstr[100];
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244 #endif
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245
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246 if (!g_hGapiLib) {
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247 return NULL;
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248 }
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249
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250 renderdata = (GAPI_RenderData *) SDL_calloc(1, sizeof(GAPI_RenderData));
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251 if (!renderdata) {
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252 SDL_OutOfMemory();
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253 return NULL;
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254 }
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255
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256 gxdp = gx.GXGetDisplayProperties();
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257 renderdata->usageFlags = USAGE_GX_FUNCS;
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258 renderdata->w = gxdp.cxWidth;
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259 renderdata->h = gxdp.cyHeight;
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260 renderdata->xPitch = gxdp.cbxPitch;
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261 renderdata->yPitch = gxdp.cbyPitch;
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262
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263 //Check that the display uses a known display format
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264 if (gxdp.ffFormat & kfDirect565) {
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265 renderdata->format = SDL_PIXELFORMAT_RGB565;
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266 } else if (gxdp.ffFormat & kfDirect555) {
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267 renderdata->format = SDL_PIXELFORMAT_RGB555;
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268 } else {
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269 renderdata->format = SDL_PIXELFORMAT_UNKNOWN;
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270 }
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271
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272 /* apply some device specific corrections */
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273 #ifdef _ARM_
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274 SystemParametersInfo(SPI_GETOEMINFO, sizeof(oemstr), oemstr, 0);
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275
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276 // buggy iPaq38xx
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277 if ((oemstr[12] == 'H') && (oemstr[13] == '3')
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278 && (oemstr[14] == '8')
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279 && (gxdp.cbxPitch > 0)) {
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280 renderdata->data = (void *) 0xac0755a0;
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281 renderdata->xPitch = -640;
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282 renderdata->yPitch = 2;
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283 }
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284 #if (EMULATE_AXIM_X30 == 0)
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285 // buggy Dell Axim X30
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286 if (_tcsncmp(oemstr, L"Dell Axim X30", 13) == 0)
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287 #endif
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288 {
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289 GXDeviceInfo gxInfo = { 0 };
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290 HDC hdc = GetDC(NULL);
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291 int result;
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292
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293 gxInfo.Version = 100;
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294 result =
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295 ExtEscape(hdc, GETGXINFO, 0, NULL, sizeof(gxInfo),
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296 (char *) &gxInfo);
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297 if (result > 0) {
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298 renderdata->usageFlags = USAGE_DATA_PTR_CONSTANT; /* no more GAPI usage from now */
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299 renderdata->data = gxInfo.pvFrameBuffer;
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300 this->hidden->needUpdate = 0;
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301 renderdata->xPitch = 2;
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302 renderdata->yPitch = 480;
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303 renderdata->w = gxInfo.cxWidth;
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304 renderdata->h = gxInfo.cyHeight;
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305
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306 //Check that the display uses a known display format
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307 switch (rbi->wFormat) {
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308 case FORMAT_565:
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309 renderdata->format = SDL_PIXELFORMAT_RGB565;
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310 break;
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311 case FORMAT_555:
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312 renderdata->format = SDL_PIXELFORMAT_RGB555;
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313 break;
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314 default:
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315 //TODO we should add support for other formats
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316 SDL_free(renderdata);
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317 return NULL;
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318 }
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319 }
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320 }
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321 #endif
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322
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323
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324 if (renderdata->format == SDL_PIXELFORMAT_UNKNOWN) {
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325 SDL_SetError("Gapi Pixelformat is unknown");
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326 SDL_free(renderdata);
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327 return NULL;
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328 }
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329
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330 /* Gapi always returns values in standard orientation, so we manually apply
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331 the current orientation
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332 */
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333
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334 DEVMODE settings;
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335 SDL_memset(&settings, 0, sizeof(DEVMODE));
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336 settings.dmSize = sizeof(DEVMODE);
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337
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338 settings.dmFields = DM_DISPLAYORIENTATION;
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339 ChangeDisplaySettingsEx(NULL, &settings, NULL, CDS_TEST, NULL);
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340
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341 if (settings.dmDisplayOrientation == DMDO_90) {
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342
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343 tmp = renderdata->w;
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344 renderdata->w = renderdata->h;
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345 renderdata->h = tmp;
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346
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347 tmp = renderdata->xPitch;
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348 renderdata->xPitch = -renderdata->yPitch;
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349 renderdata->yPitch = tmp;
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350
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351 renderdata->offset = -renderdata->w * renderdata->xPitch;
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352
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353 } else if (settings.dmDisplayOrientation == DMDO_180) {
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354
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355 renderdata->xPitch = -renderdata->xPitch;
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356 renderdata->yPitch = -renderdata->yPitch;
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357
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358 renderdata->offset = -renderdata->h * renderdata->yPitch
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359 - renderdata->w * renderdata->xPitch;
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360
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361 } else if (settings.dmDisplayOrientation == DMDO_270) {
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362
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363 tmp = renderdata->w;
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364 renderdata->w = renderdata->h;
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365 renderdata->h = tmp;
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366
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367 tmp = renderdata->xPitch;
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368 renderdata->xPitch = renderdata->yPitch;
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369 renderdata->yPitch = -tmp;
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370
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371 renderdata->offset = -renderdata->h * renderdata->yPitch;
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372
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373 }
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374
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375 if (renderdata->w != window->w || renderdata->h != window->h) {
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376 GAPI_LOG("GAPI open failed, wrong size %i %i %i %i\n", renderdata->w,
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377 renderdata->h, renderdata->xPitch, renderdata->yPitch);
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378 SDL_free(renderdata);
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379 return NULL;
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380 }
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381
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382 return renderdata;
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383
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384 }
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385
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386
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387 /* This function does the whole encapsulation of Gapi/RAWFRAMEBUFFER
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388 it should handle all the device dependent details and fill the device INDEPENDENT
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389 RenderData structure.
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390 */
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391 GAPI_RenderData *
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392 FillRenderData(SDL_Window * window)
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393 {
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394 /* We try to match the requested window to the modes available by GAPI and RAWFRAMEBUFFER.
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395 First RAWFRAMEBUFFER is tried, as it is the most reliable one
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396 Look here for detailed discussions:
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397 http://pdaphonehome.com/forums/samsung-i700/28087-just-saw.html
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398 http://blogs.msdn.com/windowsmobile/archive/2007/08/13/have-you-migrated-to-directdraw-yet.aspx
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399 */
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400
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401 GAPI_RenderData *res;
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402
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403 res = FillRenderDataRawFramebuffer(window);
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404 GAPI_LOG("FillRenderDataRawFramebuffer: %p\n", res);
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405 if (res) {
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406 return res;
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407 }
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408 //Now we try gapi
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409 res = FillRenderDataGAPI(window);
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410 GAPI_LOG("FillRenderDataGAPI: %p\n", res);
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411
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412 return res;
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413 }
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414
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415 void *
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416 GetFramebuffer()
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417 {
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418
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419 }
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420
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421
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422 SDL_Renderer *
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423 GAPI_CreateRenderer(SDL_Window * window, Uint32 flags)
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424 {
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425 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
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426 SDL_WindowData *windowdata = (SDL_WindowData *) window->driverdata;
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427 SDL_DisplayMode *displayMode = &display->current_mode;
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428 SDL_Renderer *renderer;
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429 GAPI_RenderData *data;
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430 int i, n;
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431 int bpp;
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432 Uint32 Rmask, Gmask, Bmask, Amask;
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433
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434 if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
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435 SDL_SetError("Gapi supports only fullscreen windows");
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436 return NULL;
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437 }
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438
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439 if (!SDL_PixelFormatEnumToMasks
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440 (displayMode->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
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441 SDL_SetError("Unknown display format");
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442 return NULL;
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443 }
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444
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445 renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
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446 if (!renderer) {
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447 SDL_OutOfMemory();
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448 return NULL;
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449 }
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450
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451 data = FillRenderData(window);
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452 if (!data) {
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453 GAPI_DestroyRenderer(renderer);
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454 SDL_OutOfMemory();
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455 return NULL;
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456 }
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457
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458 renderer->RenderPoint = GAPI_RenderPoint;
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459 renderer->RenderLine = GAPI_RenderLine;
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460 renderer->RenderFill = GAPI_RenderFill;
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461 renderer->RenderCopy = GAPI_RenderCopy;
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462 renderer->RenderPresent = GAPI_RenderPresent;
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463 renderer->DestroyRenderer = GAPI_DestroyRenderer;
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464 renderer->info.name = GAPI_RenderDriver.info.name;
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465 renderer->info.flags = 0;
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466 renderer->window = window->id;
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467 renderer->driverdata = data;
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468
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469 /* Gapi provides only a framebuffer so lets use software implementation */
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470 Setup_SoftwareRenderer(renderer);
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471
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472 #ifdef GAPI_RENDERER_DEBUG
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473 printf("Created gapi renderer\n");
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474 printf("use GX functions: %i\n", data->usageFlags & USAGE_GX_FUNCS);
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475 printf("framebuffer is constant: %i\n",
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476 data->usageFlags & USAGE_DATA_PTR_CONSTANT);
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477 printf("w: %i h: %i\n", data->w, data->h);
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478 printf("data ptr: %p\n", data->data); /* this can be 0 in case of GAPI usage */
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479 printf("xPitch: %i\n", data->xPitch);
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480 printf("yPitch: %i\n", data->yPitch);
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481 printf("offset: %i\n", data->offset);
|
|
482 printf("format: %x\n", data->format);
|
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483 #endif
|
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484
|
|
485 if (data->usageFlags & USAGE_GX_FUNCS) {
|
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486 if (gx.GXOpenDisplay(windowdata->hwnd, GX_FULLSCREEN) == 0) {
|
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487 GAPI_DestroyRenderer(renderer);
|
|
488 return NULL;
|
|
489 }
|
|
490 }
|
|
491
|
|
492 return renderer;
|
|
493 }
|
|
494
|
|
495 static int
|
|
496 GAPI_RenderPoint(SDL_Renderer * renderer, int x, int y)
|
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497 {
|
|
498 //TODO implement
|
|
499 return -1;
|
|
500 }
|
|
501
|
|
502 static int
|
|
503 GAPI_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
|
|
504 {
|
|
505 //TODO implement
|
|
506 return -11;
|
|
507 }
|
|
508
|
|
509 static int
|
|
510 GAPI_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect)
|
|
511 {
|
|
512 //TODO implement
|
|
513 return -1;
|
|
514 }
|
|
515
|
|
516 /* Video memory is very slow so lets optimize as much as possible */
|
|
517 static void
|
|
518 updateLine16to16(char *src, int srcXPitch, int srcYPitch,
|
|
519 char *dst, int dstXPitch, int dstYPitch, int width,
|
|
520 int height)
|
|
521 {
|
|
522 char *srcLine, *dstLine;
|
|
523 char *srcPix, *dstPix;
|
|
524
|
|
525 int x, y;
|
|
526
|
|
527 //First dumb solution
|
|
528 if (srcXPitch == 2 && dstXPitch == 2) {
|
|
529 srcLine = src;
|
|
530 dstLine = dst;
|
|
531 y = height;
|
|
532 while (y--) {
|
|
533 SDL_memcpy(dstLine, srcLine, width * sizeof(Uint16));
|
|
534 srcLine += srcYPitch;
|
|
535 dstLine += dstYPitch;
|
|
536 }
|
|
537 } else {
|
|
538 //printf("GAPI uses slow blit path %i, %i\n", dstXPitch, dstYPitch);
|
|
539 srcLine = src;
|
|
540 dstLine = dst;
|
|
541 y = height;
|
|
542 while (y--) {
|
|
543 srcPix = srcLine;
|
|
544 dstPix = dstLine;
|
|
545 x = width;
|
|
546 while (x--) {
|
|
547 *((Uint16 *) dstPix) = *((Uint16 *) srcPix);
|
|
548 dstPix += dstXPitch;
|
|
549 srcPix += srcXPitch;
|
|
550 }
|
|
551 srcLine += srcYPitch;
|
|
552 dstLine += dstYPitch;
|
|
553 }
|
|
554 }
|
|
555 }
|
|
556
|
|
557 static int
|
|
558 GAPI_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
|
|
559 const SDL_Rect * srcrect, const SDL_Rect * dstrect)
|
|
560 {
|
|
561 GAPI_RenderData *data = (GAPI_RenderData *) renderer->driverdata;
|
|
562 int bpp;
|
|
563 int bytespp;
|
|
564 int status;
|
|
565 Uint32 Rmask, Gmask, Bmask, Amask;
|
|
566
|
|
567 if (texture->format != data->format) {
|
|
568 SDL_SetError("Gapi got wrong texture");
|
|
569 return -1;
|
|
570 }
|
|
571
|
|
572 GAPI_LOG("GAPI_RenderCopy\n");
|
|
573
|
|
574 if (data->usageFlags & USAGE_GX_FUNCS) {
|
|
575 char *buffer;
|
|
576 buffer = gx.GXBeginDraw();
|
|
577 if (!(data->usageFlags & USAGE_DATA_PTR_CONSTANT)) {
|
|
578 data->data = buffer;
|
|
579 }
|
|
580 }
|
|
581
|
|
582 GAPI_LOG("GAPI_RenderCopy blit\n");
|
|
583 /* If our framebuffer has an xPitch which matches the pixelsize, we
|
|
584 can convert the framebuffer to a SDL_surface and blit there,
|
|
585 otherwise, we have to use our own blitting routine
|
|
586 */
|
|
587 SDL_PixelFormatEnumToMasks(data->format, &bpp, &Rmask, &Gmask, &Bmask,
|
|
588 &Amask);
|
|
589 bytespp = bpp >> 3;
|
|
590 if (data->xPitch == bytespp && 0) {
|
|
591 SDL_Surface *screen =
|
|
592 SDL_CreateRGBSurfaceFrom(data->data, data->w, data->h,
|
|
593 bpp, data->yPitch, Rmask, Gmask, Bmask,
|
|
594 Amask);
|
|
595 status =
|
|
596 SDL_UpperBlit((SDL_Surface *) texture->driverdata, srcrect,
|
|
597 screen, dstrect);
|
|
598 SDL_FreeSurface(screen);
|
|
599 } else { /* screen is rotated, we have to blit on our own */
|
|
600 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
|
|
601
|
|
602 char *src, *dst;
|
|
603 src = surface->pixels;
|
|
604 src += srcrect->y * surface->pitch + srcrect->x * 2;
|
|
605
|
|
606 dst = data->data + data->offset;
|
|
607 dst += dstrect->y * data->yPitch + dstrect->x * data->xPitch;
|
|
608
|
|
609 updateLine16to16(src, 2, surface->pitch,
|
|
610 dst, data->xPitch, data->yPitch,
|
|
611 srcrect->w, srcrect->h);
|
|
612
|
|
613 }
|
|
614
|
|
615 Uint32 ticks = SDL_GetTicks();
|
|
616 if (data->usageFlags & USAGE_GX_FUNCS) {
|
|
617 gx.GXEndDraw();
|
|
618 }
|
|
619 GAPI_LOG("GAPI_RenderCopy %i\n", SDL_GetTicks() - ticks);
|
|
620 return status;
|
|
621 }
|
|
622
|
|
623 static void
|
|
624 GAPI_RenderPresent(SDL_Renderer * renderer)
|
|
625 {
|
|
626 /* Nothing todo as we rendered directly to the screen on RenderCopy */
|
|
627 }
|
|
628
|
|
629 static void
|
|
630 GAPI_DestroyRenderer(SDL_Renderer * renderer)
|
|
631 {
|
|
632 GAPI_RenderData *data = (GAPI_RenderData *) renderer->driverdata;
|
|
633
|
|
634 if (data->usageFlags & USAGE_GX_FUNCS) {
|
|
635 gx.GXCloseDisplay();
|
|
636 }
|
|
637
|
|
638 if (data) {
|
|
639 SDL_free(data);
|
|
640 }
|
|
641 SDL_free(renderer);
|
|
642 }
|
|
643
|
|
644 #endif /* SDL_VIDEO_RENDER_GAPI */
|
|
645
|
|
646 /* vi: set ts=4 sw=4 expandtab: */
|