Mercurial > sdl-ios-xcode
annotate src/video/photon/SDL_phyuv.c @ 532:058d47b7a3b4
Return an error with color fills on less than 8 bpp surfaces.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 15 Oct 2002 05:22:50 +0000 |
| parents | bce7171e7a85 |
| children | 8e3ce997621c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* This is the QNX Realtime Platform version for SDL YUV video overlays */ | |
| 29 | |
| 30 #include <stdlib.h> | |
| 31 #include <string.h> | |
| 32 #ifndef bool | |
| 33 #define bool char | |
| 34 #define TRUE 1 | |
| 35 #define FALSE 0 | |
| 36 #endif | |
| 37 #include <errno.h> | |
| 38 | |
| 39 #include <Ph.h> | |
| 40 #include <Pt.h> | |
| 41 | |
| 42 #include "SDL_error.h" | |
| 43 #include "SDL_video.h" | |
| 44 #include "SDL_phyuv_c.h" | |
| 45 #include "SDL_yuvfuncs.h" | |
| 46 | |
| 47 #if 0 //just for reference | |
| 48 /* YUV data formats FourCC Layout H sample (YUV) V sample (YUV) BPP */ | |
| 49 #define Pg_VIDEO_FORMAT_IYU1 0x31555949 /* U2Y2Y2V2Y2Y2 144 111 12 */ | |
| 50 #define Pg_VIDEO_FORMAT_IYU2 0x32555949 /* U4Y4V4U4Y4V4 111 111 24 */ | |
| 51 #define Pg_VIDEO_FORMAT_UYVY 0x59565955 /* U8Y8V8Y8 122 111 16 */ | |
| 52 #define Pg_VIDEO_FORMAT_YUY2 0x32595559 /* Y8U8Y8V8 122 111 16 */ | |
| 53 #define Pg_VIDEO_FORMAT_YVYU 0x55595659 /* Y8V8Y8U8 122 111 16 */ | |
| 54 #define Pg_VIDEO_FORMAT_V422 0x56343232 /* V8Y8U8Y8 122 111 16 */ | |
| 55 #define Pg_VIDEO_FORMAT_CLJR 0x524a4c43 /* V6U6Y5Y5Y5Y5 133 111 8 */ | |
| 56 #define Pg_VIDEO_FORMAT_YVU9 0x39555659 /* Planar YVU 144 144 9 */ | |
| 57 #define Pg_VIDEO_FORMAT_YV12 0x32315659 /* Planar YUV 122 122 12 */ | |
| 58 | |
| 59 /* There seems to be no FourCC that matches this */ | |
| 60 #define Pg_VIDEO_FORMAT_YUV420 0x00000100 /* Planar YUV 122 111 16 */ | |
| 61 | |
| 62 /* These formats are the same as YV12, except the U and V planes do not have to contiguously follow the Y plane */ | |
| 63 /* but they're all the same to us, since we always have 3 plane pointers */ | |
| 64 #define Pg_VIDEO_FORMAT_CLPL Pg_VIDEO_FORMAT_YV12 /* Cirrus Logic Planar format */ | |
| 65 #define Pg_VIDEO_FORMAT_VBPL Pg_VIDEO_FORMAT_YV12 /* VooDoo Banshee planar format */ | |
| 66 | |
| 67 #define SDL_YV12_OVERLAY 0x32315659 /* Planar mode: Y + V + U */ | |
| 68 #define SDL_IYUV_OVERLAY 0x56555949 /* Planar mode: Y + U + V */ | |
| 69 #define SDL_YUY2_OVERLAY 0x32595559 /* Packed mode: Y0+U0+Y1+V0 */ | |
| 70 #define SDL_UYVY_OVERLAY 0x59565955 /* Packed mode: U0+Y0+V0+Y1 */ | |
| 71 #define SDL_YVYU_OVERLAY 0x55595659 /* Packed mode: Y0+V0+Y1+U0 */ | |
| 72 | |
| 73 #endif | |
| 74 | |
| 75 | |
| 76 #define OVERLAY_STATE_UNINIT 0 | |
| 77 #define OVERLAY_STATE_ACTIVE 1 | |
| 78 | |
| 79 /* The functions used to manipulate software video overlays */ | |
| 80 static struct private_yuvhwfuncs ph_yuvfuncs = { | |
| 81 ph_LockYUVOverlay, | |
| 82 ph_UnlockYUVOverlay, | |
| 83 ph_DisplayYUVOverlay, | |
| 84 ph_FreeYUVOverlay | |
| 85 }; | |
| 86 | |
| 87 | |
| 88 typedef struct { | |
| 89 int id; | |
| 90 int width, height; | |
| 91 int data_size; /* bytes */ | |
| 92 int num_planes; | |
| 93 int *pitches; /* bytes */ | |
| 94 int *offsets; /* bytes */ | |
| 95 char *data; | |
| 96 void *obdata; | |
| 97 } XvImage; | |
| 98 | |
| 99 | |
| 100 struct private_yuvhwdata { | |
| 101 XvImage *image; | |
| 102 FRAMEDATA *CurrentFrameData; | |
| 103 FRAMEDATA *FrameData0; | |
| 104 FRAMEDATA *FrameData1; | |
| 105 PgScalerProps_t props; | |
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106 PgScalerCaps_t caps; |
| 0 | 107 PgVideoChannel_t *channel; |
| 108 SDL_Rect CurrentWindow; | |
| 109 long format; | |
| 110 int screen_width; | |
| 111 int screen_height ; | |
| 112 int screen_bpp ; //2 | |
| 113 bool planar; | |
| 114 bool scaler_on ; | |
| 115 int current; | |
| 116 long YStride; | |
| 117 long VStride; | |
| 118 long UStride; | |
| 119 long chromakey; | |
| 120 unsigned long State; | |
| 121 long flags; | |
| 122 }; | |
| 123 | |
| 124 extern PgVideoChannel_t * PgCreateVideoChannel(unsigned type, unsigned flags); | |
| 125 extern int PgGetScalerCapabilities( PgVideoChannel_t *channel, int format_index, PgScalerCaps_t *vcaps ); | |
| 126 extern int PgConfigScalerChannel(PgVideoChannel_t *channel, PgScalerProps_t *props); | |
| 127 extern void PgDestroyVideoChannel(PgVideoChannel_t *channel); | |
| 128 extern PgColor_t PgGetOverlayChromaColor(void); | |
| 129 | |
| 130 void | |
| 131 grab_ptrs2(PgVideoChannel_t *channel, FRAMEDATA *Frame0, FRAMEDATA *Frame1 ) | |
| 132 { | |
| 133 | |
| 134 /* Buffers have moved; re-obtain the pointers */ | |
| 135 Frame0->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane1); | |
| 136 Frame1->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane2); | |
| 137 Frame0->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane1); | |
| 138 Frame1->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane2); | |
| 139 Frame0->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane1); | |
| 140 Frame1->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane2); | |
| 141 | |
| 142 } | |
| 143 | |
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144 SDL_Overlay* ph_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display) |
| 0 | 145 { |
| 146 SDL_Overlay *overlay; | |
| 147 struct private_yuvhwdata *hwdata; | |
| 148 int xv_port; | |
| 149 int rtncode; | |
| 150 // PhRect_t rect; | |
| 151 // PhSysInfo_t info; | |
| 152 // PhRegion_t region; | |
| 153 // short x, y; | |
| 154 PtArg_t argt; | |
| 155 int i =0; | |
| 156 // bool bCont = TRUE; | |
| 157 int Priority[20]; | |
| 158 int Type[20]; | |
| 159 int entries, select, highest; | |
| 160 | |
| 161 PhDCSetCurrent(0); //Need to set draw context to window esp. if we we in Offscreeen mode | |
| 162 | |
| 163 /* Create the overlay structure */ | |
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164 overlay = (SDL_Overlay *)malloc(sizeof(SDL_Overlay)); |
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165 memset(overlay, 0x00, sizeof(SDL_Overlay)); |
| 0 | 166 if ( overlay == NULL ) { |
| 167 SDL_OutOfMemory(); | |
| 168 return(NULL); | |
| 169 } | |
| 170 memset(overlay, 0, (sizeof *overlay)); | |
| 171 | |
| 172 /* Fill in the basic members */ | |
| 173 overlay->format = format; | |
| 174 overlay->w = width; | |
| 175 overlay->h = height; | |
| 176 | |
| 177 /* Set up the YUV surface function structure */ | |
| 178 overlay->hwfuncs = &ph_yuvfuncs; | |
| 179 | |
| 180 /* Create the pixel data and lookup tables */ | |
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181 hwdata = (struct private_yuvhwdata *)malloc(sizeof(struct private_yuvhwdata)); |
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182 memset(hwdata, 0x00, sizeof(struct private_yuvhwdata)); |
| 0 | 183 overlay->hwdata = hwdata; |
| 184 if ( hwdata == NULL ) { | |
| 185 SDL_OutOfMemory(); | |
| 186 SDL_FreeYUVOverlay(overlay); | |
| 187 return(NULL); | |
| 188 } | |
| 189 | |
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190 if (overlay->hwdata->channel == NULL) |
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191 { |
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192 if ((overlay->hwdata->channel = PgCreateVideoChannel(Pg_VIDEO_CHANNEL_SCALER,0)) == NULL) |
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193 { |
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194 SDL_SetError("ph_CreateYUVOverlay(): Create channel failed: %s\n", strerror( errno )); |
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195 free(overlay->hwdata); |
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196 free(overlay); |
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197 return (NULL); |
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198 } |
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199 } |
| 0 | 200 |
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201 overlay->hwdata->CurrentWindow.x = 0; |
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202 overlay->hwdata->CurrentWindow.y = 0; |
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203 overlay->hwdata->CurrentWindow.w = 320; |
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204 overlay->hwdata->CurrentWindow.h = 240; |
| 0 | 205 |
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206 overlay->hwdata->State = OVERLAY_STATE_UNINIT; |
| 0 | 207 |
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208 overlay->hwdata->screen_bpp = 2; |
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209 overlay->hwdata->scaler_on = FALSE; |
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210 overlay->hwdata->screen_width = 1024; |
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211 overlay->hwdata->screen_height = 768; |
| 0 | 212 |
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213 overlay->hwdata->FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA))); |
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214 overlay->hwdata->FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA))); |
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215 memset(overlay->hwdata->FrameData0, 0x00, (size_t)(sizeof(FRAMEDATA))); |
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216 memset(overlay->hwdata->FrameData1, 0x00, (size_t)(sizeof(FRAMEDATA))); |
| 0 | 217 |
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218 overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps); |
| 0 | 219 |
| 220 //Note you really don't need to do this for SDL as you are given a format, but this is a good example | |
| 221 | |
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222 xv_port = -1; |
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223 i=0; |
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224 |
| 0 | 225 while(PgGetScalerCapabilities(overlay->hwdata->channel, i++, &(overlay->hwdata->caps)) == 0) |
| 226 { | |
| 227 if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YV12) //in SDL | |
| 228 { | |
| 229 | |
| 230 Priority[i-1] = 0; | |
| 231 Type[i-1] = Pg_VIDEO_FORMAT_YV12; | |
| 232 if(format == Pg_VIDEO_FORMAT_YV12) | |
| 233 { | |
| 234 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_YV12; | |
| 235 xv_port = 1; //supported | |
| 236 Priority[i-1] = 100; //force selected | |
| 237 } | |
| 238 | |
| 239 } | |
| 240 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YVU9) //in SDL | |
| 241 { | |
| 242 | |
| 243 Priority[i-1] = 0; | |
| 244 Type[i-1] = Pg_VIDEO_FORMAT_YVU9; | |
| 245 if(format == Pg_VIDEO_FORMAT_YVU9) | |
| 246 { | |
| 247 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_YVU9; | |
| 248 xv_port = 1; //supported | |
| 249 Priority[i-1] = 100; //force selected | |
| 250 } | |
| 251 | |
| 252 } | |
| 253 #if 0 //this part of SDL is YUV specific | |
| 254 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_RGB555) | |
| 255 { | |
| 256 | |
| 257 Priority[i-1] = 3; | |
| 258 Type[i-1] = Pg_VIDEO_FORMAT_RGB555; | |
| 259 } | |
| 260 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_RGB565) | |
| 261 { | |
| 262 | |
| 263 Priority[i-1] = 2; | |
| 264 Type[i-1] = Pg_VIDEO_FORMAT_RGB565; | |
| 265 } | |
| 266 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_RGB8888) | |
| 267 { | |
| 268 | |
| 269 Priority[i-1] = 1; | |
| 270 Type[i-1] = Pg_VIDEO_FORMAT_RGB8888; | |
| 271 } | |
| 272 #endif | |
| 273 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_IYU1) | |
| 274 { | |
| 275 | |
| 276 Priority[i-1] = 0; | |
| 277 Type[i-1] = Pg_VIDEO_FORMAT_IYU1; | |
| 278 | |
| 279 } | |
| 280 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_IYU2) | |
| 281 { | |
| 282 | |
| 283 Priority[i-1] = 0; | |
| 284 Type[i-1] = Pg_VIDEO_FORMAT_IYU2; | |
| 285 } | |
| 286 | |
| 287 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_UYVY) //in SDL | |
| 288 { | |
| 289 | |
| 290 Priority[i-1] = 7; | |
| 291 Type[i-1] = Pg_VIDEO_FORMAT_UYVY; | |
| 292 if(format == Pg_VIDEO_FORMAT_UYVY) | |
| 293 { | |
| 294 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_UYVY; | |
| 295 xv_port = 1; //supported | |
| 296 Priority[i-1] = 100; //force selected | |
| 297 } | |
| 298 | |
| 299 } | |
| 300 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YUY2) //in SDL | |
| 301 { | |
| 302 | |
| 303 Priority[i-1] = 8; | |
| 304 Type[i-1] = Pg_VIDEO_FORMAT_YUY2; | |
| 305 if(format == Pg_VIDEO_FORMAT_YUY2) | |
| 306 { | |
| 307 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_YUY2; | |
| 308 xv_port = 1; //supported | |
| 309 Priority[i-1] = 100; //force selected | |
| 310 } | |
| 311 | |
| 312 } | |
| 313 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YVYU) //in SDL | |
| 314 { | |
| 315 | |
| 316 Priority[i-1] = 4; | |
| 317 Type[i-1] = Pg_VIDEO_FORMAT_YVYU; | |
| 318 | |
| 319 if(format == Pg_VIDEO_FORMAT_YVYU) | |
| 320 { | |
| 321 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_YVYU; | |
| 322 xv_port = 1; //supported | |
| 323 Priority[i-1] = 100; //force selected | |
| 324 | |
| 325 } | |
| 326 | |
| 327 } | |
| 328 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_V422) | |
| 329 { | |
| 330 | |
| 331 Priority[i-1] = 5; | |
| 332 Type[i-1] = Pg_VIDEO_FORMAT_V422; | |
| 333 } | |
| 334 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_CLJR) | |
| 335 { | |
| 336 | |
| 337 Priority[i-1] = 6; | |
| 338 Type[i-1] = Pg_VIDEO_FORMAT_CLJR; | |
| 339 } | |
| 340 else | |
| 341 { | |
| 342 | |
| 343 Priority[i-1] = 0; | |
| 344 } | |
| 345 | |
| 346 overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps); | |
| 347 } | |
| 348 | |
| 349 if ( xv_port == -1 ) | |
| 350 { | |
| 351 SDL_SetError("No available video ports for requested format"); | |
| 352 return(NULL); | |
| 353 } | |
| 354 | |
| 355 //Pick the highest priority format | |
| 356 entries = i -2; | |
| 357 highest = Priority[0]; //make first entry top at begining | |
| 358 select = 0; | |
| 359 | |
| 360 for (i = 1; i < entries; i++) | |
| 361 { | |
| 362 | |
| 363 | |
| 364 if(Priority[i] > highest) | |
| 365 { | |
| 366 highest = Priority[i]; | |
| 367 select = i; | |
| 368 } | |
| 369 } | |
| 370 | |
| 371 | |
| 372 | |
| 373 overlay->hwdata->caps.size = sizeof (overlay->hwdata->caps ); | |
| 374 PgGetScalerCapabilities(overlay->hwdata->channel, select, &(overlay->hwdata->caps)); | |
| 375 overlay->hwdata->props.format = overlay->hwdata->caps.format ; | |
| 376 | |
| 377 overlay->hwdata->format = overlay->hwdata->props.format; //to make easier for apps to use | |
| 378 | |
| 379 | |
| 380 overlay->hwdata->props.size = sizeof (overlay->hwdata->props); | |
| 381 overlay->hwdata->props.src_dim.w = width; | |
| 382 overlay->hwdata->props.src_dim.h = height; | |
| 383 | |
| 384 overlay->hwdata->chromakey = PgGetOverlayChromaColor(); | |
| 385 | |
| 386 // Set chromakey in video widget so we can see overlay data | |
| 387 /* I don't know where the container widget is!!!, I guess it is in hidden->window*/ | |
| 388 | |
| 389 PtEnter(0); | |
| 390 PtSetArg( &argt, Pt_ARG_FILL_COLOR, overlay->hwdata->chromakey, 0 ); | |
| 391 PtSetResources( window, 1, &argt ); | |
| 392 PtLeave(0); | |
| 393 | |
| 394 | |
| 395 fflush( stderr ); | |
| 396 | |
| 397 overlay->hwdata->props.viewport.ul.x = overlay->hwdata->CurrentWindow.x; | |
| 398 overlay->hwdata->props.viewport.ul.y = overlay->hwdata->CurrentWindow.y; | |
| 399 //Next line MIGHT have x and y reversed!!!!!!!!!!!! | |
| 400 overlay->hwdata->props.viewport.lr.x = overlay->hwdata->CurrentWindow.x +overlay->hwdata->CurrentWindow.w; | |
| 401 overlay->hwdata->props.viewport.lr.y = overlay->hwdata->CurrentWindow.y + overlay->hwdata->CurrentWindow.h; | |
| 402 | |
| 403 | |
| 404 | |
| 405 overlay->hwdata->props.flags = | |
| 406 ~Pg_SCALER_PROP_SCALER_ENABLE | Pg_SCALER_PROP_DOUBLE_BUFFER ; | |
| 407 | |
| 408 if (overlay->hwdata->chromakey) { | |
| 409 overlay->hwdata->props.flags |= Pg_SCALER_PROP_CHROMA_ENABLE; | |
| 410 overlay->hwdata->props.color_key = overlay->hwdata->chromakey; | |
| 411 overlay->hwdata->props.color_key_mask = 0xffffff; | |
| 412 } | |
| 413 else | |
| 414 { | |
| 415 overlay->hwdata->props.flags &= ~Pg_SCALER_PROP_CHROMA_ENABLE; | |
| 416 } | |
| 417 | |
| 418 | |
| 419 overlay->hwdata->scaler_on = FALSE; | |
| 420 | |
| 421 | |
| 422 | |
| 423 rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props)); | |
| 424 switch(rtncode) | |
| 425 { | |
| 426 case -1: | |
| 427 SDL_SetError("PgConfigScalerChannel failed\n"); | |
| 428 SDL_FreeYUVOverlay(overlay); | |
| 429 return(NULL); | |
| 430 break; | |
| 431 case 1: | |
| 432 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1); | |
| 433 break; | |
| 434 case 0: | |
| 435 default: | |
| 436 break; | |
| 437 } | |
| 438 | |
| 439 | |
| 440 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1); | |
| 441 | |
| 442 if(overlay->hwdata->channel->yplane1 != NULL) | |
| 443 overlay->hwdata->YStride = overlay->hwdata->channel->yplane1->pitch; | |
| 444 if(overlay->hwdata->channel->uplane1 != NULL) | |
| 445 overlay->hwdata->UStride = overlay->hwdata->channel->uplane1->pitch; | |
| 446 if(overlay->hwdata->channel->vplane1 != NULL) | |
| 447 overlay->hwdata->VStride = overlay->hwdata->channel->vplane1->pitch; | |
| 448 | |
| 449 | |
| 450 overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel); | |
| 451 | |
| 452 | |
| 453 | |
| 454 if (overlay->hwdata->current == -1) | |
| 455 { | |
| 456 SDL_SetError("PgNextFrame failed, bailing out\n"); | |
| 457 SDL_FreeYUVOverlay(overlay); | |
| 458 return(NULL); | |
| 459 } | |
| 460 | |
| 461 //set current frame for double buffering | |
| 462 if(overlay->hwdata->current == 0) | |
| 463 { | |
| 464 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0; | |
| 465 } | |
| 466 else | |
| 467 { | |
| 468 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1; | |
| 469 } | |
| 470 | |
| 471 overlay->hwdata->State = OVERLAY_STATE_ACTIVE; | |
| 472 | |
| 473 | |
| 474 /* We're all done.. */ | |
| 475 return(overlay); | |
| 476 } | |
| 477 | |
| 478 int ph_LockYUVOverlay(_THIS, SDL_Overlay *overlay) | |
| 479 { | |
| 480 //int rtncode; | |
| 481 | |
| 482 if(overlay == NULL) | |
| 483 return 0; | |
| 484 | |
| 485 //set current frame for double buffering | |
| 486 if(overlay->hwdata->current == 0) | |
| 487 { | |
| 488 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0; | |
| 489 } | |
| 490 else | |
| 491 { | |
| 492 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1; | |
| 493 } | |
| 494 | |
| 495 //Lock gets the pointer and passes it to the app. The app writes all yuv data into overlay->pixels | |
| 496 //Note this is defined as Uint8 **pixels; /* Read-write */ | |
| 497 overlay->pixels = &overlay->hwdata->CurrentFrameData->Y; | |
|
380
bce7171e7a85
Date: Wed, 22 May 2002 22:30:58 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
370
diff
changeset
|
498 overlay->pitches = (Uint16*) &(overlay->hwdata->YStride); |
| 0 | 499 |
| 500 return(0); | |
| 501 } | |
| 502 | |
| 503 void ph_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay) | |
| 504 { | |
| 505 int rtncode; | |
| 506 | |
| 507 if(overlay == NULL) | |
| 508 return ; | |
| 509 | |
| 510 if(overlay->hwdata->scaler_on == FALSE) | |
| 511 { | |
| 512 | |
| 513 | |
| 514 overlay->hwdata->props.flags |= Pg_SCALER_PROP_SCALER_ENABLE; | |
| 515 rtncode =PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props)); | |
| 516 switch(rtncode) | |
| 517 { | |
| 518 case -1: | |
| 519 SDL_SetError("PgConfigScalerChannel failed\n"); | |
| 520 SDL_FreeYUVOverlay(overlay); | |
| 521 break; | |
| 522 case 1: | |
| 523 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1); | |
| 524 overlay->hwdata->scaler_on = TRUE; | |
| 525 break; | |
| 526 case 0: | |
| 527 default: | |
| 528 overlay->hwdata->scaler_on = TRUE; | |
| 529 break; | |
| 530 } | |
| 531 //This would be the best place to draw chromakey but we do not have a SDL_Surface in the args | |
| 532 //This means we might see a chromakey flicker at startup | |
| 533 } | |
| 534 overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel); | |
| 535 | |
| 536 | |
| 537 if (overlay->hwdata->current == -1) { | |
| 538 SDL_SetError("PgNextVideoFrame failed\n"); | |
| 539 SDL_FreeYUVOverlay(overlay); | |
| 540 return; | |
| 541 } | |
| 542 | |
| 543 overlay->pixels = NULL; | |
| 544 } | |
| 545 | |
| 546 int ph_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *dstrect) | |
| 547 { | |
| 548 int rtncode; | |
| 549 | |
| 550 if(overlay == NULL) | |
| 551 return 0; | |
| 552 | |
| 553 | |
| 554 /*SDL_Rect CurrentWindow*/ | |
| 555 //If CurrentWindow has change, move the viewport | |
| 556 if((overlay->hwdata->CurrentWindow.x != dstrect->x) || | |
| 557 (overlay->hwdata->CurrentWindow.y != dstrect->y) || | |
| 558 (overlay->hwdata->CurrentWindow.w != dstrect->w) || | |
| 559 (overlay->hwdata->CurrentWindow.h != dstrect->h)) | |
| 560 { | |
| 561 if(overlay->hwdata->State == OVERLAY_STATE_UNINIT) | |
| 562 return -1; | |
| 563 | |
| 564 overlay->hwdata->CurrentWindow.x = dstrect->x; | |
| 565 overlay->hwdata->CurrentWindow.y = dstrect->y; | |
| 566 overlay->hwdata->CurrentWindow.w = dstrect->w; | |
| 567 overlay->hwdata->CurrentWindow.h = dstrect->h; | |
| 568 | |
| 569 overlay->hwdata->props.viewport.ul.x = overlay->hwdata->CurrentWindow.x; | |
| 570 overlay->hwdata->props.viewport.ul.y = overlay->hwdata->CurrentWindow.y; | |
| 571 //Next line MIGHT have x and y reversed!!!!!!!!!!!! | |
| 572 overlay->hwdata->props.viewport.lr.x = overlay->hwdata->CurrentWindow.x +overlay->hwdata->CurrentWindow.w; | |
| 573 overlay->hwdata->props.viewport.lr.y = overlay->hwdata->CurrentWindow.y + overlay->hwdata->CurrentWindow.h; | |
| 574 | |
| 575 | |
| 576 rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props)); | |
| 577 | |
| 578 switch(rtncode) | |
| 579 { | |
| 580 case -1: | |
| 581 SDL_SetError("PgConfigScalerChannel failed\n"); | |
| 582 SDL_FreeYUVOverlay(overlay); | |
| 583 return(0); | |
| 584 break; | |
| 585 case 1: | |
| 586 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1); | |
| 587 break; | |
| 588 case 0: | |
| 589 default: | |
| 590 break; | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 | |
| 595 //JB the X11 file did this. We do this in SDL_unlock, we need to confirm that lock and unlock are called for each frame! | |
| 596 // XvShmPutImage(GFX_Display, hwdata->port, SDL_Window, SDL_GC, | |
| 597 // hwdata->image, 0, 0, overlay->w, overlay->h, | |
| 598 // dstrect->x, dstrect->y, dstrect->w, dstrect->h, False); | |
| 599 /* This is what this call is | |
| 600 int XvShmPutImage ( | |
| 601 Display *dpy, | |
| 602 XvPortID port, | |
| 603 Drawable d, | |
| 604 GC gc, | |
| 605 XvImage *image, | |
| 606 int src_x, | |
| 607 int src_y, | |
| 608 unsigned int src_w, | |
| 609 unsigned int src_h, | |
| 610 int dest_x, | |
| 611 int dest_y, | |
| 612 unsigned int dest_w, | |
| 613 unsigned int dest_h, | |
| 614 Bool send_event | |
| 615 ) | |
| 616 */ | |
| 617 | |
| 618 return(0); | |
| 619 } | |
| 620 | |
| 621 void ph_FreeYUVOverlay(_THIS, SDL_Overlay *overlay) | |
| 622 { | |
| 623 //struct private_yuvhwdata *hwdata; | |
| 624 | |
| 625 if(overlay == NULL) | |
| 626 return; | |
| 627 | |
| 628 if(overlay->hwdata == NULL) | |
| 629 return; | |
| 630 | |
| 631 overlay->hwdata->State = OVERLAY_STATE_UNINIT; | |
| 632 | |
| 633 if( overlay->hwdata->channel == NULL ) | |
| 634 { | |
| 635 return; | |
| 636 } | |
| 637 | |
| 638 PgDestroyVideoChannel(overlay->hwdata->channel); | |
| 639 | |
| 640 overlay->hwdata->channel = NULL; | |
| 641 overlay->hwdata->CurrentFrameData = NULL; | |
| 642 | |
| 643 free(overlay->hwdata->FrameData0); | |
| 644 free(overlay->hwdata->FrameData1); | |
| 645 overlay->hwdata->FrameData0 = NULL; | |
| 646 overlay->hwdata->FrameData1 = NULL; | |
| 647 free(overlay->hwdata); | |
| 648 | |
| 649 } |