GL_SRC_ALPHA_SATURATE for OpenGL ES 3.0

GL_SRC_ALPHA_SATURATE can now be used as a dst type. Change-Id: I48764a8fb8900d418de3180cf1a485871582e931 Reviewed-on: https://swiftshader-review.googlesource.com/3104Tested-by: Alexis Hétu <sugoi@google.com> Reviewed-by: Nicolas Capens <capn@google.com>

GL_SRC_ALPHA_SATURATE for OpenGL ES 3.0
ff5e0528 · Alexis Hetu · Alexis Hétu · f16c91af · ff5e0528
Commit ff5e0528 authored May 12, 2015 by Alexis Hetu Committed by Alexis Hétu May 13, 2015
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libGLESv2.cpp src/OpenGL/libGLESv2/libGLESv2.cpp +14 -0

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--- a/src/OpenGL/libGLESv2/libGLESv2.cpp
+++ b/src/OpenGL/libGLESv2/libGLESv2.cpp
@@ -637,6 +637,8 @@ void BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dst
 	TRACE("(GLenum srcRGB = 0x%X, GLenum dstRGB = 0x%X, GLenum srcAlpha = 0x%X, GLenum dstAlpha = 0x%X)",
 	      srcRGB, dstRGB, srcAlpha, dstAlpha);

+	egl::GLint clientVersion = egl::getClientVersion();
+
 	switch(srcRGB)
 	{
 	case GL_ZERO:
@@ -676,6 +678,12 @@ void BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dst
 	case GL_CONSTANT_ALPHA:
 	case GL_ONE_MINUS_CONSTANT_ALPHA:
 		break;
+	case GL_SRC_ALPHA_SATURATE:
+		if(clientVersion < 3)
+		{
+			return error(GL_INVALID_ENUM);
+		}
+		break;
 	default:
 		return error(GL_INVALID_ENUM);
 	}
@@ -719,6 +727,12 @@ void BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dst
 	case GL_CONSTANT_ALPHA:
 	case GL_ONE_MINUS_CONSTANT_ALPHA:
 		break;
+	case GL_SRC_ALPHA_SATURATE:
+		if(clientVersion < 3)
+		{
+			return error(GL_INVALID_ENUM);
+		}
+		break;
 	default:
 		return error(GL_INVALID_ENUM);
 	}