mesa: add blend_equation_separatei() helper

Will be used to add KHR_no_error support.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index 8811ef9a339768564e51520df65ce8e5564e7b61..e91c14aeb9dd0e925f3120e98a42f31b16f2bc7f 100644 (file)
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -599,6 +599,22 @@ _mesa_BlendEquationSeparate( GLenum modeRGB, GLenum modeA )
 }
 
 
+static void
+blend_equation_separatei(struct gl_context *ctx, GLuint buf, GLenum modeRGB,
+                         GLenum modeA)
+{
+   if (ctx->Color.Blend[buf].EquationRGB == modeRGB &&
+       ctx->Color.Blend[buf].EquationA == modeA)
+      return;  /* no change */
+
+   FLUSH_VERTICES(ctx, _NEW_COLOR);
+   ctx->Color.Blend[buf].EquationRGB = modeRGB;
+   ctx->Color.Blend[buf].EquationA = modeA;
+   ctx->Color._BlendEquationPerBuffer = GL_TRUE;
+   ctx->Color._AdvancedBlendMode = BLEND_NONE;
+}
+
+
 /**
  * Set separate blend equations for one color buffer/target.
  */
@@ -634,15 +650,7 @@ _mesa_BlendEquationSeparateiARB(GLuint buf, GLenum modeRGB, GLenum modeA)
       return;
    }
 
-   if (ctx->Color.Blend[buf].EquationRGB == modeRGB &&
-       ctx->Color.Blend[buf].EquationA == modeA)
-      return;  /* no change */
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   ctx->Color.Blend[buf].EquationRGB = modeRGB;
-   ctx->Color.Blend[buf].EquationA = modeA;
-   ctx->Color._BlendEquationPerBuffer = GL_TRUE;
-   ctx->Color._AdvancedBlendMode = BLEND_NONE;
+   blend_equation_separatei(ctx, buf, modeRGB, modeA);
 }