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Fixed bug 3349 - GLES2_RenderReadPixels doesn't use target texture format

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Simon Hug

The OpenGL ES 2 renderer does not check the target texture format when using SDL_RenderReadPixels and just always uses ABGR8888. This can result in swapped or wrong colors.

The attached patch adds a check and selects the target texture format, if a texture is set as the target.
This commit is contained in:
Sam Lantinga 2016-10-01 11:38:53 -07:00
parent 51d6371ec1
commit 061cc5e75f
3 changed files with 3 additions and 3 deletions
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2
src/render/opengl/SDL_render_gl.c
View File

@ -1414,7 +1414,7 @@ GL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
Uint32 pixel_format, void * pixels, int pitch)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
Uint32 temp_format = SDL_PIXELFORMAT_ARGB8888;
Uint32 temp_format = renderer->target ? renderer->target->format : SDL_PIXELFORMAT_ABGR8888;
void *temp_pixels;
int temp_pitch;
GLint internalFormat;

2
src/render/opengles/SDL_render_gles.c
View File

@ -1069,7 +1069,7 @@ GLES_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
Uint32 pixel_format, void * pixels, int pitch)
{
GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
Uint32 temp_format = SDL_PIXELFORMAT_ABGR8888;
Uint32 temp_format = renderer->target ? renderer->target->format : SDL_PIXELFORMAT_ABGR8888;
void *temp_pixels;
int temp_pitch;
Uint8 *src, *dst, *tmp;

2
src/render/opengles2/SDL_render_gles2.c
View File

@ -1817,7 +1817,7 @@ GLES2_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
Uint32 pixel_format, void * pixels, int pitch)
{
GLES2_DriverContext *data = (GLES2_DriverContext *)renderer->driverdata;
Uint32 temp_format = SDL_PIXELFORMAT_ABGR8888;
Uint32 temp_format = renderer->target ? renderer->target->format : SDL_PIXELFORMAT_ABGR8888;
void *temp_pixels;
int temp_pitch;
Uint8 *src, *dst, *tmp;