Added support for EXT_blend_equation_separate / ATI_blend_equation_separate.

The internal driver interface was also changed to use
BlendEquationSeparate instead of BlendEquation.

4 files changed, 12 insertions, 11 deletions

diff --git a/src/mesa/drivers/glide/fxdd.c b/src/mesa/drivers/glide/fxdd.c
index bda11f9644f..ef73f79641c 100644
--- a/src/mesa/drivers/glide/fxdd.c
+++ b/src/mesa/drivers/glide/fxdd.c
@@ -1531,10 +1531,10 @@ fx_check_IsInHardware(GLcontext * ctx)
    }
 
    if (ctx->Color.BlendEnabled) {
-      if (ctx->Color.BlendEquation != GL_FUNC_ADD_EXT) {
+      if (ctx->Color.BlendEquationRGB != GL_FUNC_ADD) {
          if (!fxMesa->HavePixExt ||
-             ((ctx->Color.BlendEquation != GL_FUNC_SUBTRACT_EXT) &&
-              (ctx->Color.BlendEquation != GL_FUNC_REVERSE_SUBTRACT_EXT))) {
+             ((ctx->Color.BlendEquationRGB != GL_FUNC_SUBTRACT) &&
+              (ctx->Color.BlendEquationRGB != GL_FUNC_REVERSE_SUBTRACT))) {
             return FX_FALLBACK_BLEND;
          }
       }
@@ -1702,7 +1702,7 @@ fxSetupDDPointers(GLcontext * ctx)
    ctx->Driver.UpdateTexturePalette = fxDDTexPalette;
    ctx->Driver.AlphaFunc = fxDDAlphaFunc;
    ctx->Driver.BlendFuncSeparate = fxDDBlendFuncSeparate;
-   ctx->Driver.BlendEquation = fxDDBlendEquation;
+   ctx->Driver.BlendEquationSeparate = fxDDBlendEquationSeparate;
    ctx->Driver.DepthFunc = fxDDDepthFunc;
    ctx->Driver.DepthMask = fxDDDepthMask;
    ctx->Driver.ColorMask = fxDDColorMask;
diff --git a/src/mesa/drivers/glide/fxdrv.h b/src/mesa/drivers/glide/fxdrv.h
index 1b42be8e7bb..d48e3dd3ef1 100644
--- a/src/mesa/drivers/glide/fxdrv.h
+++ b/src/mesa/drivers/glide/fxdrv.h
@@ -620,7 +620,7 @@ extern void fxDDTexUseGlbPalette(GLcontext *, GLboolean);
 extern void fxDDEnable(GLcontext *, GLenum, GLboolean);
 extern void fxDDAlphaFunc(GLcontext *, GLenum, GLfloat);
 extern void fxDDBlendFuncSeparate(GLcontext *, GLenum, GLenum, GLenum, GLenum);
-extern void fxDDBlendEquation(GLcontext *, GLenum);
+extern void fxDDBlendEquationSeparate(GLcontext *, GLenum, GLenum);
 extern void fxDDDepthMask(GLcontext *, GLboolean);
 extern void fxDDDepthFunc(GLcontext *, GLenum);
 extern void fxDDStencilFunc (GLcontext *ctx, GLenum func, GLint ref, GLuint mask);
diff --git a/src/mesa/drivers/glide/fxsetup.c b/src/mesa/drivers/glide/fxsetup.c
index 4c086302843..cb7c4e2b08b 100644
--- a/src/mesa/drivers/glide/fxsetup.c
+++ b/src/mesa/drivers/glide/fxsetup.c
@@ -1527,20 +1527,21 @@ which are drawn front-to-back.
 }
 
 void
-fxDDBlendEquation(GLcontext * ctx, GLenum mode)
+fxDDBlendEquationSeparate(GLcontext * ctx, GLenum modeRGB, GLenum modeA)
 {
  fxMesaContext fxMesa = FX_CONTEXT(ctx);
  tfxUnitsState *us = &fxMesa->unitsState;
  GrAlphaBlendOp_t q;
 
- switch (mode) {
-        case GL_FUNC_ADD_EXT:
+ assert( modeRGB == modeA );
+ switch (modeRGB) {
+        case GL_FUNC_ADD:
              q = GR_BLEND_OP_ADD;
              break;
-        case GL_FUNC_SUBTRACT_EXT:
+        case GL_FUNC_SUBTRACT:
              q = GR_BLEND_OP_SUB;
              break;
-        case GL_FUNC_REVERSE_SUBTRACT_EXT:
+        case GL_FUNC_REVERSE_SUBTRACT:
              q = GR_BLEND_OP_REVSUB;
              break;
         default:
diff --git a/src/mesa/drivers/glide/fxtris.c b/src/mesa/drivers/glide/fxtris.c
index 3b82b570eb7..846fd95f711 100644
--- a/src/mesa/drivers/glide/fxtris.c
+++ b/src/mesa/drivers/glide/fxtris.c
@@ -1407,7 +1407,7 @@ GLboolean fxMultipass_ColorSum (GLcontext *ctx, GLuint pass)
              ctx->Texture.Unit[0]._ReallyEnabled = 0;
              ctx->Texture.Unit[1]._ReallyEnabled = 0;
              /* SUM the colors */
-             fxDDBlendEquation(ctx, GL_FUNC_ADD_EXT);
+             fxDDBlendEquationSeparate(ctx, GL_FUNC_ADD, GL_FUNC_ADD);
              fxDDBlendFuncSeparate(ctx, GL_ONE, GL_ONE, GL_ZERO, GL_ONE);
              fxDDEnable(ctx, GL_BLEND, GL_TRUE);
              /* make sure we draw only where we want to */