Mercurial > sdl-ios-xcode
annotate src/video/photon/SDL_photon_render.c @ 3315:87ffdad11607
Fixed bug #761
Mason Wheeler 2009-07-05 09:28:33 PDT
This patch fixes two issues with SDL_CreateTextureFromSurface.
1. If no renderer is available, the function will return 0 without calling
SDL_SetError. (It does this in other places as well, but it appears that in
these cases, SDL_SetError was already called by a previous function call.)
2. Removal of a dead code block that checks for an impossible return value.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 26 Sep 2009 10:13:44 +0000 |
| parents | 7f684f249ec9 |
| children | dd105b317335 |
| rev | line source |
|---|---|
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2009 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 QNX Photon GUI SDL driver |
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23 Copyright (C) 2009 Mike Gorchak |
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24 (mike@malva.ua, lestat@i.com.ua) |
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25 */ |
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26 |
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27 #include "SDL_config.h" |
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28 |
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29 #include "../SDL_pixels_c.h" |
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30 #include "../SDL_yuv_sw_c.h" |
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31 |
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32 #include "SDL_video.h" |
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33 |
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34 #include "SDL_photon_render.h" |
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35 #include "SDL_photon.h" |
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36 |
| 3139 | 37 static SDL_Renderer *photon_createrenderer(SDL_Window * window, Uint32 flags); |
| 38 static int photon_displaymodechanged(SDL_Renderer * renderer); | |
| 39 static int photon_activaterenderer(SDL_Renderer * renderer); | |
| 40 static int photon_createtexture(SDL_Renderer * renderer, | |
| 41 SDL_Texture * texture); | |
| 42 static int photon_querytexturepixels(SDL_Renderer * renderer, | |
| 43 SDL_Texture * texture, void **pixels, | |
| 44 int *pitch); | |
| 45 static int photon_settexturepalette(SDL_Renderer * renderer, | |
| 46 SDL_Texture * texture, | |
| 47 const SDL_Color * colors, int firstcolor, | |
| 48 int ncolors); | |
| 49 static int photon_gettexturepalette(SDL_Renderer * renderer, | |
| 50 SDL_Texture * texture, SDL_Color * colors, | |
| 51 int firstcolor, int ncolors); | |
| 52 static int photon_settexturecolormod(SDL_Renderer * renderer, | |
| 53 SDL_Texture * texture); | |
| 54 static int photon_settexturealphamod(SDL_Renderer * renderer, | |
| 55 SDL_Texture * texture); | |
| 56 static int photon_settextureblendmode(SDL_Renderer * renderer, | |
| 57 SDL_Texture * texture); | |
| 58 static int photon_settexturescalemode(SDL_Renderer * renderer, | |
| 59 SDL_Texture * texture); | |
| 60 static int photon_updatetexture(SDL_Renderer * renderer, | |
| 61 SDL_Texture * texture, const SDL_Rect * rect, | |
| 62 const void *pixels, int pitch); | |
| 63 static int photon_locktexture(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 64 const SDL_Rect * rect, int markDirty, | |
| 65 void **pixels, int *pitch); | |
| 66 static void photon_unlocktexture(SDL_Renderer * renderer, | |
| 67 SDL_Texture * texture); | |
| 68 static void photon_dirtytexture(SDL_Renderer * renderer, | |
| 69 SDL_Texture * texture, int numrects, | |
| 70 const SDL_Rect * rects); | |
| 71 static int photon_renderpoint(SDL_Renderer * renderer, int x, int y); | |
| 72 static int photon_renderline(SDL_Renderer * renderer, int x1, int y1, int x2, | |
| 73 int y2); | |
| 74 static int photon_renderfill(SDL_Renderer * renderer, const SDL_Rect * rect); | |
| 75 static int photon_rendercopy(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 76 const SDL_Rect * srcrect, | |
| 77 const SDL_Rect * dstrect); | |
| 78 static void photon_renderpresent(SDL_Renderer * renderer); | |
| 79 static void photon_destroytexture(SDL_Renderer * renderer, | |
| 80 SDL_Texture * texture); | |
| 81 static void photon_destroyrenderer(SDL_Renderer * renderer); | |
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82 |
| 3139 | 83 SDL_RenderDriver photon_renderdriver = { |
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84 photon_createrenderer, |
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85 { |
| 3139 | 86 "photon", |
| 87 (SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY | | |
| 88 SDL_RENDERER_PRESENTFLIP2 | SDL_RENDERER_PRESENTFLIP3 | | |
| 89 SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_PRESENTDISCARD | | |
| 90 SDL_RENDERER_ACCELERATED), | |
| 91 (SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR | | |
| 92 SDL_TEXTUREMODULATE_ALPHA), | |
| 93 (SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK | | |
| 94 SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD), | |
| 95 (SDL_TEXTURESCALEMODE_NONE | SDL_TEXTURESCALEMODE_SLOW), | |
| 96 13, | |
| 97 { | |
| 98 SDL_PIXELFORMAT_INDEX8, | |
| 99 SDL_PIXELFORMAT_RGB555, | |
| 100 SDL_PIXELFORMAT_RGB565, | |
| 101 SDL_PIXELFORMAT_RGB888, | |
| 102 SDL_PIXELFORMAT_BGR888, | |
| 103 SDL_PIXELFORMAT_ARGB8888, | |
| 104 SDL_PIXELFORMAT_RGBA8888, | |
| 105 SDL_PIXELFORMAT_ABGR8888, | |
| 106 SDL_PIXELFORMAT_BGRA8888, | |
| 107 SDL_PIXELFORMAT_YV12, | |
| 108 SDL_PIXELFORMAT_YUY2, | |
| 109 SDL_PIXELFORMAT_UYVY, | |
| 110 SDL_PIXELFORMAT_YVYU}, | |
| 111 0, | |
| 112 0} | |
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113 }; |
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114 |
| 3139 | 115 static SDL_Renderer * |
| 116 photon_createrenderer(SDL_Window * window, Uint32 flags) | |
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117 { |
| 3139 | 118 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window); |
| 119 SDL_DisplayData *didata = (SDL_DisplayData *) display->driverdata; | |
| 120 SDL_WindowData *wdata = (SDL_WindowData *) window->driverdata; | |
| 121 SDL_Renderer *renderer = NULL; | |
| 122 SDL_RenderData *rdata = NULL; | |
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123 |
| 3139 | 124 /* Allocate new renderer structure */ |
| 125 renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(SDL_Renderer)); | |
| 126 if (renderer == NULL) { | |
| 127 SDL_OutOfMemory(); | |
| 128 return NULL; | |
| 129 } | |
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130 |
| 3139 | 131 /* Allocate renderer data */ |
| 132 rdata = (SDL_RenderData *) SDL_calloc(1, sizeof(SDL_RenderData)); | |
| 133 if (rdata == NULL) { | |
| 134 SDL_free(renderer); | |
| 135 SDL_OutOfMemory(); | |
| 136 return NULL; | |
| 137 } | |
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138 |
| 3139 | 139 renderer->DisplayModeChanged = photon_displaymodechanged; |
| 140 renderer->ActivateRenderer = photon_activaterenderer; | |
| 141 renderer->CreateTexture = photon_createtexture; | |
| 142 renderer->QueryTexturePixels = photon_querytexturepixels; | |
| 143 renderer->SetTexturePalette = photon_settexturepalette; | |
| 144 renderer->GetTexturePalette = photon_gettexturepalette; | |
| 145 renderer->SetTextureAlphaMod = photon_settexturealphamod; | |
| 146 renderer->SetTextureColorMod = photon_settexturecolormod; | |
| 147 renderer->SetTextureBlendMode = photon_settextureblendmode; | |
| 148 renderer->SetTextureScaleMode = photon_settexturescalemode; | |
| 149 renderer->UpdateTexture = photon_updatetexture; | |
| 150 renderer->LockTexture = photon_locktexture; | |
| 151 renderer->UnlockTexture = photon_unlocktexture; | |
| 152 renderer->DirtyTexture = photon_dirtytexture; | |
| 153 renderer->RenderPoint = photon_renderpoint; | |
| 154 renderer->RenderLine = photon_renderline; | |
| 155 renderer->RenderFill = photon_renderfill; | |
| 156 renderer->RenderCopy = photon_rendercopy; | |
| 157 renderer->RenderPresent = photon_renderpresent; | |
| 158 renderer->DestroyTexture = photon_destroytexture; | |
| 159 renderer->DestroyRenderer = photon_destroyrenderer; | |
| 160 renderer->info = photon_renderdriver.info; | |
| 161 renderer->window = window->id; | |
| 162 renderer->driverdata = rdata; | |
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163 |
| 3139 | 164 /* Set render acceleration flag in case it is accelerated */ |
| 165 if ((didata->caps & SDL_PHOTON_ACCELERATED) == SDL_PHOTON_ACCELERATED) { | |
| 166 renderer->info.flags = SDL_RENDERER_ACCELERATED; | |
| 167 } else { | |
| 168 renderer->info.flags &= ~(SDL_RENDERER_ACCELERATED); | |
| 169 } | |
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170 |
| 3139 | 171 rdata->window = window; |
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172 |
| 3139 | 173 /* Check if upper level requested synchronization on vsync signal */ |
| 174 if ((flags & SDL_RENDERER_PRESENTVSYNC) == SDL_RENDERER_PRESENTVSYNC) { | |
| 175 rdata->enable_vsync = SDL_TRUE; | |
| 176 } else { | |
| 177 rdata->enable_vsync = SDL_FALSE; | |
| 178 } | |
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179 |
| 3139 | 180 /* Check what buffer copy/flip scheme is requested */ |
| 181 rdata->surfaces_count = 0; | |
| 182 if ((flags & SDL_RENDERER_SINGLEBUFFER) == SDL_RENDERER_SINGLEBUFFER) { | |
| 183 if ((flags & SDL_RENDERER_PRESENTDISCARD) == | |
| 184 SDL_RENDERER_PRESENTDISCARD) { | |
| 185 renderer->info.flags |= | |
| 186 SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD; | |
| 187 } else { | |
| 188 renderer->info.flags |= | |
| 189 SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY; | |
| 190 } | |
| 191 rdata->surfaces_count = 1; | |
| 192 rdata->surface_visible_idx = 0; | |
| 193 rdata->surface_render_idx = 0; | |
| 194 } else { | |
| 195 if ((flags & SDL_RENDERER_PRESENTFLIP2) == SDL_RENDERER_PRESENTFLIP2) { | |
| 196 renderer->info.flags |= SDL_RENDERER_PRESENTFLIP2; | |
| 197 rdata->surfaces_count = 2; | |
| 198 rdata->surface_visible_idx = 0; | |
| 199 rdata->surface_render_idx = 1; | |
| 200 } else { | |
| 201 if ((flags & SDL_RENDERER_PRESENTFLIP3) == | |
| 202 SDL_RENDERER_PRESENTFLIP3) { | |
| 203 renderer->info.flags |= SDL_RENDERER_PRESENTFLIP3; | |
| 204 rdata->surfaces_count = 3; | |
| 205 rdata->surface_visible_idx = 0; | |
| 206 rdata->surface_render_idx = 1; | |
| 207 } else { | |
| 208 renderer->info.flags |= | |
| 209 SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY; | |
| 210 rdata->surfaces_count = 1; | |
| 211 rdata->surface_visible_idx = 0; | |
| 212 rdata->surface_render_idx = 0; | |
| 213 } | |
| 214 } | |
| 215 } | |
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216 |
| 3139 | 217 return renderer; |
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218 } |
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219 |
| 3139 | 220 void |
| 221 photon_addrenderdriver(_THIS) | |
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222 { |
| 3139 | 223 uint32_t it; |
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224 |
| 3139 | 225 for (it = 0; it < _this->num_displays; it++) { |
| 226 SDL_AddRenderDriver(it, &photon_renderdriver); | |
| 227 } | |
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228 } |
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229 |
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230 /****************************************************************************/ |
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231 /* SDL render interface */ |
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232 /****************************************************************************/ |
| 3139 | 233 static int |
| 234 photon_displaymodechanged(SDL_Renderer * renderer) | |
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235 { |
| 3139 | 236 SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata; |
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237 |
| 3139 | 238 /* Remove all allocated surfaces, they are no more valid */ |
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239 |
| 3139 | 240 /* TODO: Add video mode change detection and new parameters detection */ |
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241 |
| 3139 | 242 return 0; |
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243 } |
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244 |
| 3139 | 245 static int |
| 246 photon_activaterenderer(SDL_Renderer * renderer) | |
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247 { |
| 3139 | 248 SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata; |
| 249 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(rdata->window); | |
| 250 SDL_DisplayData *didata = (SDL_DisplayData *) display->driverdata; | |
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251 |
| 3139 | 252 return 0; |
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253 } |
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254 |
| 3139 | 255 static int |
| 256 photon_createtexture(SDL_Renderer * renderer, SDL_Texture * texture) | |
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257 { |
| 3139 | 258 SDL_RenderData *renderdata = (SDL_RenderData *) renderer->driverdata; |
| 259 SDL_Window *window = SDL_GetWindowFromID(renderer->window); | |
| 260 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window); | |
| 261 SDL_TextureData *tdata = NULL; | |
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262 |
| 3139 | 263 /* Allocate texture driver data */ |
| 264 tdata = (SDL_TextureData *) SDL_calloc(1, sizeof(SDL_TextureData)); | |
| 265 if (tdata == NULL) { | |
| 266 SDL_OutOfMemory(); | |
| 267 return -1; | |
| 268 } | |
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269 |
| 3139 | 270 /* Set texture driver data */ |
| 271 texture->driverdata = tdata; | |
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272 |
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273 } |
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274 |
| 3139 | 275 static int |
| 276 photon_querytexturepixels(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 277 void **pixels, int *pitch) | |
| 278 { | |
| 279 } | |
| 280 | |
| 281 static int | |
| 282 photon_settexturepalette(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 283 const SDL_Color * colors, int firstcolor, | |
| 284 int ncolors) | |
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285 { |
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286 } |
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287 |
| 3139 | 288 static int |
| 289 photon_gettexturepalette(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 290 SDL_Color * colors, int firstcolor, int ncolors) | |
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291 { |
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292 } |
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293 |
| 3139 | 294 static int |
| 295 photon_settexturecolormod(SDL_Renderer * renderer, SDL_Texture * texture) | |
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296 { |
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297 } |
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298 |
| 3139 | 299 static int |
| 300 photon_settexturealphamod(SDL_Renderer * renderer, SDL_Texture * texture) | |
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301 { |
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302 } |
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303 |
| 3139 | 304 static int |
| 305 photon_settextureblendmode(SDL_Renderer * renderer, SDL_Texture * texture) | |
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306 { |
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307 } |
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308 |
| 3139 | 309 static int |
| 310 photon_settexturescalemode(SDL_Renderer * renderer, SDL_Texture * texture) | |
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311 { |
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312 } |
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313 |
| 3139 | 314 static int |
| 315 photon_updatetexture(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 316 const SDL_Rect * rect, const void *pixels, int pitch) | |
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317 { |
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318 } |
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319 |
| 3139 | 320 static int |
| 321 photon_locktexture(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 322 const SDL_Rect * rect, int markDirty, void **pixels, | |
| 323 int *pitch) | |
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324 { |
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325 } |
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326 |
| 3139 | 327 static void |
| 328 photon_unlocktexture(SDL_Renderer * renderer, SDL_Texture * texture) | |
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329 { |
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330 } |
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331 |
| 3139 | 332 static void |
| 333 photon_dirtytexture(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 334 int numrects, const SDL_Rect * rects) | |
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335 { |
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336 } |
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337 |
| 3139 | 338 static int |
| 339 photon_renderpoint(SDL_Renderer * renderer, int x, int y) | |
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340 { |
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341 } |
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342 |
| 3139 | 343 static int |
| 344 photon_renderline(SDL_Renderer * renderer, int x1, int y1, int x2, int y2) | |
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345 { |
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346 } |
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347 |
| 3139 | 348 static int |
| 349 photon_renderfill(SDL_Renderer * renderer, const SDL_Rect * rect) | |
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350 { |
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351 } |
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352 |
| 3139 | 353 static int |
| 354 photon_rendercopy(SDL_Renderer * renderer, SDL_Texture * texture, | |
| 355 const SDL_Rect * srcrect, const SDL_Rect * dstrect) | |
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356 { |
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357 } |
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358 |
| 3139 | 359 static void |
| 360 photon_renderpresent(SDL_Renderer * renderer) | |
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361 { |
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362 } |
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363 |
| 3139 | 364 static void |
| 365 photon_destroytexture(SDL_Renderer * renderer, SDL_Texture * texture) | |
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366 { |
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367 } |
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368 |
| 3139 | 369 static void |
| 370 photon_destroyrenderer(SDL_Renderer * renderer) | |
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371 { |
| 3139 | 372 SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata; |
| 373 uint32_t it; | |
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374 |
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375 } |
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376 |
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377 /* vi: set ts=4 sw=4 expandtab: */ |