[TextureMapper] Replace the source transform with a flip uniform
https://bugs.webkit.org/show_bug.cgi?id=89317
Patch by Martin Robinson <mrobinson@igalia.com> on 2012-06-18
Reviewed by Noam Rosenthal.
No new tests. This should not change any observable behavior.
* platform/graphics/texmap/TextureMapperGL.cpp: Instead of building and passing
the m4src matrix to the shader, just pass a single uniform that says whether or
not the texture should be flipped.
* platform/graphics/texmap/TextureMapperShaderManager.cpp: Change the shader programs
to deal with a flip variable rather than a source matrix.
(WebCore::TextureMapperShaderProgram::TextureMapperShaderProgram): Instead of getting the location
of the source matrix, get the location of the flip uniform.
(WebCore::TextureMapperShaderProgramSimple::TextureMapperShaderProgramSimple): Ditto.
(WebCore::TextureMapperShaderProgramRectSimple::TextureMapperShaderProgramRectSimple): Ditto.
(WebCore::TextureMapperShaderProgramOpacityAndMask::TextureMapperShaderProgramOpacityAndMask): Ditto.
(WebCore::TextureMapperShaderProgramRectOpacityAndMask::TextureMapperShaderProgramRectOpacityAndMask): Ditto.
* platform/graphics/texmap/TextureMapperShaderManager.h:
(WebCore::TextureMapperShaderProgram::flipLocation): Added this getter.
(TextureMapperShaderProgram): Rename the source matrix location member to reflect above changes.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@120608 268f45cc-cd09-0410-ab3c-d52691b4dbfc
4 files changed
