Mercurial > sdl-ios-xcode

comparison src/SDL_compat.c @ 2781:5651642f4a78

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added software fallback for YUV overlay code when YUV textures aren't available.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 24 Nov 2008 23:25:36 +0000
parents f55c87ae336b
children 6bacfecbf27e
comparison
equal deleted inserted replaced
2780:cc15254e44b6 2781:5651642f4a78
26 #include "SDL.h" 26 #include "SDL.h"
27 #include "SDL_syswm.h" 27 #include "SDL_syswm.h"
28 28
29 #include "video/SDL_sysvideo.h" 29 #include "video/SDL_sysvideo.h"
30 #include "video/SDL_pixels_c.h" 30 #include "video/SDL_pixels_c.h"
31 #include "video/SDL_yuv_sw_c.h"
31 32
32 static SDL_WindowID SDL_VideoWindow = 0; 33 static SDL_WindowID SDL_VideoWindow = 0;
33 static SDL_RendererInfo SDL_VideoRendererInfo; 34 static SDL_RendererInfo SDL_VideoRendererInfo;
34 static SDL_TextureID SDL_VideoTexture = 0; 35 static SDL_TextureID SDL_VideoTexture = 0;
35 static SDL_Surface *SDL_VideoSurface = NULL; 36 static SDL_Surface *SDL_VideoSurface = NULL;
1346 1347
1347 struct private_yuvhwdata 1348 struct private_yuvhwdata
1348 { 1349 {
1349 Uint16 pitches[3]; 1350 Uint16 pitches[3];
1350 Uint8 *planes[3]; 1351 Uint8 *planes[3];
1352
1353 SDL_SW_YUVTexture *sw;
1351 1354
1352 SDL_TextureID textureID; 1355 SDL_TextureID textureID;
1353 }; 1356 };
1354 1357
1355 SDL_Overlay * 1358 SDL_Overlay *
1429 break; 1432 break;
1430 } 1433 }
1431 1434
1432 overlay->hwdata->textureID = 1435 overlay->hwdata->textureID =
1433 SDL_CreateTexture(texture_format, SDL_TEXTUREACCESS_STREAMING, w, h); 1436 SDL_CreateTexture(texture_format, SDL_TEXTUREACCESS_STREAMING, w, h);
1434 if (!overlay->hwdata->textureID) { 1437 if (overlay->hwdata->textureID) {
1438 overlay->hwdata->sw = NULL;
1439 } else {
1440 overlay->hwdata->sw = SDL_SW_CreateYUVTexture(texture_format, w, h);
1441 if (!overlay->hwdata->sw) {
1442 SDL_FreeYUVOverlay(overlay);
1443 return NULL;
1444 }
1445
1446 /* Create a supported RGB format texture for display */
1447 overlay->hwdata->textureID =
1448 SDL_CreateTexture(SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, w, h);
1449 }
1450 if (!overlay->hwdata->textureID) {
1435 SDL_FreeYUVOverlay(overlay); 1451 SDL_FreeYUVOverlay(overlay);
1436 return NULL; 1452 return NULL;
1437 } 1453 }
1438 1454
1439 return overlay; 1455 return overlay;
1447 1463
1448 if (!overlay) { 1464 if (!overlay) {
1449 SDL_SetError("Passed a NULL overlay"); 1465 SDL_SetError("Passed a NULL overlay");
1450 return -1; 1466 return -1;
1451 } 1467 }
1452 if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch) 1468 if (overlay->hwdata->sw) {
1453 < 0) { 1469 if (SDL_SW_QueryYUVTexturePixels(overlay->hwdata->sw, &pixels, &pitch) < 0) {
1454 return -1; 1470 return -1;
1455 } 1471 }
1472 } else {
1473 if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch)
1474 < 0) {
1475 return -1;
1476 }
1477 }
1456 overlay->pixels[0] = (Uint8 *) pixels; 1478 overlay->pixels[0] = (Uint8 *) pixels;
1457 overlay->pitches[0] = pitch; 1479 overlay->pitches[0] = pitch;
1458 switch (overlay->format) { 1480 switch (overlay->format) {
1459 case SDL_YV12_OVERLAY: 1481 case SDL_YV12_OVERLAY:
1460 case SDL_IYUV_OVERLAY: 1482 case SDL_IYUV_OVERLAY:
1477 SDL_UnlockYUVOverlay(SDL_Overlay * overlay) 1499 SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
1478 { 1500 {
1479 if (!overlay) { 1501 if (!overlay) {
1480 return; 1502 return;
1481 } 1503 }
1482 SDL_UnlockTexture(overlay->hwdata->textureID); 1504 if (overlay->hwdata->sw) {
1505 void *pixels;
1506 int pitch;
1507 if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch) == 0) {
1508 SDL_Rect srcrect;
1509
1510 srcrect.x = 0;
1511 srcrect.y = 0;
1512 srcrect.w = overlay->w;
1513 srcrect.h = overlay->h;
1514 SDL_SW_CopyYUVToRGB(overlay->hwdata->sw, &srcrect, SDL_PIXELFORMAT_RGB888, overlay->w, overlay->h, pixels, pitch);
1515 SDL_UnlockTexture(overlay->hwdata->textureID);
1516 }
1517 } else {
1518 SDL_UnlockTexture(overlay->hwdata->textureID);
1519 }
1483 } 1520 }
1484 1521
1485 int 1522 int
1486 SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect) 1523 SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
1487 { 1524 {