pandory500/SDL-mirror
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Updated blend semantics so blending uses the following formula:

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dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
    dstA = srcA + (dstA * (1-srcA))
This allows proper compositing semantics without requiring premultiplied alpha.

Needs full unit test coverage and bug fixes!
This commit is contained in:
Sam Lantinga 2013-07-23 08:06:49 -07:00
parent a99edf3519
commit 32188834b5
17 changed files with 362 additions and 1001 deletions
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2
src/render/opengles2/SDL_gles2funcs.h
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@ -2,7 +2,7 @@ SDL_PROC(void, glActiveTexture, (GLenum))
SDL_PROC(void, glAttachShader, (GLuint, GLuint))
SDL_PROC(void, glBindAttribLocation, (GLuint, GLuint, const char *))
SDL_PROC(void, glBindTexture, (GLenum, GLuint))
SDL_PROC(void, glBlendFunc, (GLenum, GLenum))
SDL_PROC(void, glBlendFuncSeparate, (GLenum, GLenum, GLenum, GLenum))
SDL_PROC(void, glClear, (GLbitfield))
SDL_PROC(void, glClearColor, (GLclampf, GLclampf, GLclampf, GLclampf))
SDL_PROC(void, glCompileShader, (GLuint))