[Mesa-dev] [PATCH 11/17] mesa: add blend_equation_separatei() helper

[Timothy Arceri]

Will be used to add KHR_no_error support.
---
 src/mesa/main/blend.c | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index 8811ef9..e91c14a 100644
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -592,20 +592,36 @@ _mesa_BlendEquationSeparate( GLenum modeRGB, GLenum modeA )
       ctx->Color.Blend[buf].EquationA = modeA;
    }
    ctx->Color._BlendEquationPerBuffer = GL_FALSE;
    ctx->Color._AdvancedBlendMode = BLEND_NONE;
 
    if (ctx->Driver.BlendEquationSeparate)
       ctx->Driver.BlendEquationSeparate(ctx, modeRGB, 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.
  */
 void GLAPIENTRY
 _mesa_BlendEquationSeparateiARB(GLuint buf, GLenum modeRGB, GLenum modeA)
 {
    GET_CURRENT_CONTEXT(ctx);
 
    if (MESA_VERBOSE & VERBOSE_API)
       _mesa_debug(ctx, "glBlendEquationSeparatei(%u, %s %s)\n", buf,
@@ -627,29 +643,21 @@ _mesa_BlendEquationSeparateiARB(GLuint buf, GLenum modeRGB, GLenum modeA)
    if (!legal_simple_blend_equation(ctx, modeRGB)) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeRGB)");
       return;
    }
 
    if (!legal_simple_blend_equation(ctx, modeA)) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(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);
 }
 
 
 /**
  * Set the blending color.
  *
  * \param red red color component.
  * \param green green color component.
  * \param blue blue color component.
  * \param alpha alpha color component.
-- 
2.9.3