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Bug 3044

Summary: [2.0.4 RC2] Problem when using SDL_SetRenderTarget + SDL_RenderReadPixels (Windows only)
Product: SDL Reporter: jnmaloney
Component: renderAssignee: Sam Lantinga <slouken>
Status: NEW --- QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: don't know   
Hardware: x86_64   
OS: Windows 7   

Description jnmaloney 2015-06-29 06:24:29 UTC 
I'm still experiencing this bug on Windows in 2.0.4 RC2.

https://bugzilla.libsdl.org/show_bug.cgi?id=2705

Using the code:

  SDL_SetRenderTarget(m_renderer, m_targetTex);
  int readResult = SDL_RenderReadPixels(m_renderer, NULL, SDL_PIXELFORMAT_ARGB8888, pixelData, pitch);
  SDL_SetRenderTarget(m_renderer, NULL);

The actual pixel data is grabbed from the backbuffer, and not the render target.