pandory500/SDL-mirror
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Fixed bug 1315 - Greenish video when video size smaller than texture

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The incoming pixels are contiguous for the update rectangle.
This commit is contained in:
Sam Lantinga 2011-12-30 18:18:42 -05:00
parent b7323989e9
commit 98615b55aa
1 changed files with 2 additions and 10 deletions
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12
src/render/opengl/SDL_render_gl.c
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@ -569,15 +569,10 @@ GL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
rect->h, data->format, data->formattype,
pixels);
if (data->yuv) {
const void *top;
renderdata->glPixelStorei(GL_UNPACK_ROW_LENGTH, (pitch / 2));
/* Skip to the top of the next texture */
top = (const void*)((const Uint8*)pixels + (texture->h-rect->y) * pitch - rect->x);
/* Skip to the correct offset into the next texture */
pixels = (const void*)((const Uint8*)top + (rect->y / 2) * pitch + rect->x / 2);
pixels = (const void*)((const Uint8*)pixels + rect->h * pitch);
if (texture->format == SDL_PIXELFORMAT_YV12) {
renderdata->glBindTexture(data->type, data->vtexture);
} else {
@ -587,11 +582,8 @@ GL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
rect->w/2, rect->h/2,
data->format, data->formattype, pixels);
/* Skip to the top of the next texture */
top = (const void*)((const Uint8*)top + (texture->h * pitch)/4);
/* Skip to the correct offset into the next texture */
pixels = (const void*)((const Uint8*)top + (rect->y / 2) * pitch + rect->x / 2);
pixels = (const void*)((const Uint8*)pixels + (rect->h * pitch)/4);
if (texture->format == SDL_PIXELFORMAT_YV12) {
renderdata->glBindTexture(data->type, data->utexture);
} else {