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Pixel shader working package renaming to quad #236

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Description:
  In order to SIMD, we need to pass 2x2 pixels in to pixel shader.
  For now we have a special name for 2x2 regions.
  So we need to name it "quad" to distinguish other pixel rectangles.

  When renaming it, we need to:
  1. Change draw package functions to draw quad
  2. Change 4x4 package to 2x2 quads.
  3. If any samples avaiable in quad, full quads need to be interpolated.

Original issue reported on code.google.com by wuye9036 on 15 Apr 2013 at 3:15