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Fixed bug #276

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PlanarPixmapInfoYUV420 is a big endian structure.
Fix contributed by Jean-Charles BERTIN

--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402106
This commit is contained in:
Sam Lantinga 2006-09-24 00:04:06 +00:00
parent 0b9d71091e
commit 6a16eb68dc
1 changed files with 8 additions and 6 deletions
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14
src/video/quartz/SDL_QuartzYUV.m
View file

@ -274,6 +274,8 @@ SDL_Overlay* QZ_CreateYUVOverlay (_THIS, int width, int height,
return NULL;
}
/* Fix: jc.bertin@free.fr
PlanarPixmapInfoYUV420 is a big-endian struct */
yuv_pixmap = (PlanarPixmapInfoYUV420*)
SDL_malloc (sizeof(PlanarPixmapInfoYUV420) +
(width * height * 2));
@ -291,20 +293,20 @@ SDL_Overlay* QZ_CreateYUVOverlay (_THIS, int width, int height,
/* CHECK_ALIGN(pixels[0]); */
pitches[0] = width;
yuv_pixmap->componentInfoY.offset = offset;
yuv_pixmap->componentInfoY.rowBytes = width;
yuv_pixmap->componentInfoY.offset = EndianS32_NtoB(offset);
yuv_pixmap->componentInfoY.rowBytes = EndianU32_NtoB(width);
offset += width * height;
pixels[plane2] = (Uint8*)yuv_pixmap + offset;
pitches[plane2] = width / 2;
yuv_pixmap->componentInfoCb.offset = offset;
yuv_pixmap->componentInfoCb.rowBytes = width / 2;
yuv_pixmap->componentInfoCb.offset = EndianS32_NtoB(offset);
yuv_pixmap->componentInfoCb.rowBytes = EndianU32_NtoB(width / 2);
offset += (width * height / 4);
pixels[plane3] = (Uint8*)yuv_pixmap + offset;
pitches[plane3] = width / 2;
yuv_pixmap->componentInfoCr.offset = offset;
yuv_pixmap->componentInfoCr.rowBytes = width / 2;
yuv_pixmap->componentInfoCr.offset = EndianS32_NtoB(offset);
yuv_pixmap->componentInfoCr.rowBytes = EndianU32_NtoB(width / 2);
overlay->pixels = pixels;
overlay->pitches = pitches;