kc3-lang/SDL/src/render/direct3d

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• Hash : e343273a
  Author :
  Date : 2013-10-19T01:29:23
  

  Fixed bug 2162 - SDL_RenderClear not clearing entire render target
  
  Kevin Wells
  
  Overview:
  SDL_RenderClear is only clearing part of a texture when it is the render target and a different size than the screen.
  
  Steps to Reproduce:
  1) This only occurs with the render driver set to direct3d, so: SDL_SetHint(SDL_HINT_RENDER_DRIVER,"direct3d")
  Also, my window was 1280x720.
  
  2) Create a texture for a render target with a resolution of 1024x1024:
  texture=SDL_CreateTexture(main_window.renderer,SDL_PIXELFORMAT_RGBA8888,SDL_TEXTUREACCESS_TARGET,1024,1024);
  SDL_SetTextureBlendMode(texture,SDL_BLENDMODE_BLEND);
  
  3) Target the texture for rendering: SDL_SetRenderTarget(main_window.renderer,texture);
  
  4) Set the draw color to whatever you want (problem occurs with both 0,0,0,0 and 0,0,0,255 among others) and then clear the render target:
  SDL_SetRenderDrawColor(main_window.renderer,0,0,0,0);
  SDL_RenderClear(main_window.renderer);
  
  Actual Results:
  Only about the top 3/4s of the texture gets cleared on calling SDL_RenderClear. The bottom 1/4 or so does not clear.
  
  Expected Results:
  Entire render target should be cleared.
  

• Files

• SDL_render_d3d.c

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