Added utility functions for gl to d3d11 blend states.
TRAC #22042
Signed-off-by: Nicolas Capens
Signed-off-by: Daniel Koch
Author: Geoff Lang
git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1430 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/renderer11_utils.cpp b/src/libGLESv2/renderer/renderer11_utils.cpp
index ab03b65..cb4a232 100644
--- a/src/libGLESv2/renderer/renderer11_utils.cpp
+++ b/src/libGLESv2/renderer/renderer11_utils.cpp
@@ -11,6 +11,75 @@
#include "common/debug.h"
+namespace gl_d3d11
+{
+
+D3D11_BLEND ConvertBlendFunc(GLenum glBlend)
+{
+ D3D11_BLEND d3dBlend = D3D11_BLEND_ZERO;
+
+ switch (glBlend)
+ {
+ case GL_ZERO: d3dBlend = D3D11_BLEND_ZERO; break;
+ case GL_ONE: d3dBlend = D3D11_BLEND_ONE; break;
+ case GL_SRC_COLOR: d3dBlend = D3D11_BLEND_SRC_COLOR; break;
+ case GL_ONE_MINUS_SRC_COLOR: d3dBlend = D3D11_BLEND_INV_SRC_COLOR; break;
+ case GL_DST_COLOR: d3dBlend = D3D11_BLEND_DEST_COLOR; break;
+ case GL_ONE_MINUS_DST_COLOR: d3dBlend = D3D11_BLEND_INV_DEST_COLOR; break;
+ case GL_SRC_ALPHA: d3dBlend = D3D11_BLEND_SRC_ALPHA; break;
+ case GL_ONE_MINUS_SRC_ALPHA: d3dBlend = D3D11_BLEND_INV_SRC_ALPHA; break;
+ case GL_DST_ALPHA: d3dBlend = D3D11_BLEND_DEST_ALPHA; break;
+ case GL_ONE_MINUS_DST_ALPHA: d3dBlend = D3D11_BLEND_INV_DEST_ALPHA; break;
+ case GL_CONSTANT_COLOR: d3dBlend = D3D11_BLEND_BLEND_FACTOR; break;
+ case GL_ONE_MINUS_CONSTANT_COLOR: d3dBlend = D3D11_BLEND_INV_BLEND_FACTOR; break;
+ case GL_CONSTANT_ALPHA: d3dBlend = D3D11_BLEND_BLEND_FACTOR; break;
+ case GL_ONE_MINUS_CONSTANT_ALPHA: d3dBlend = D3D11_BLEND_INV_BLEND_FACTOR; break;
+ case GL_SRC_ALPHA_SATURATE: d3dBlend = D3D11_BLEND_SRC_ALPHA_SAT; break;
+ default: UNREACHABLE();
+ }
+
+ return d3dBlend;
+}
+
+D3D11_BLEND_OP ConvertBlendOp(GLenum glBlendOp)
+{
+ D3D11_BLEND_OP d3dBlendOp = D3D11_BLEND_OP_ADD;
+
+ switch (glBlendOp)
+ {
+ case GL_FUNC_ADD: d3dBlendOp = D3D11_BLEND_OP_ADD; break;
+ case GL_FUNC_SUBTRACT: d3dBlendOp = D3D11_BLEND_OP_SUBTRACT; break;
+ case GL_FUNC_REVERSE_SUBTRACT: d3dBlendOp = D3D11_BLEND_OP_REV_SUBTRACT; break;
+ default: UNREACHABLE();
+ }
+
+ return d3dBlendOp;
+}
+
+UINT8 ConvertColorMask(bool red, bool green, bool blue, bool alpha)
+{
+ UINT8 mask = 0;
+ if (red)
+ {
+ mask |= D3D11_COLOR_WRITE_ENABLE_RED;
+ }
+ if (green)
+ {
+ mask |= D3D11_COLOR_WRITE_ENABLE_GREEN;
+ }
+ if (blue)
+ {
+ mask |= D3D11_COLOR_WRITE_ENABLE_BLUE;
+ }
+ if (alpha)
+ {
+ mask |= D3D11_COLOR_WRITE_ENABLE_ALPHA;
+ }
+ return mask;
+}
+
+}
+
namespace d3d11_gl
{