mesa: begin implementation of GL_ARB_draw_buffers_blend

[mesa.git] / src / mesa / main / mtypes.h

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 7b4c1161f5af47b562d9ba96f4ae0def67da71c5..55c5fd2b84908c4ed27dd4bc5c75dcfd5ddda777 100644 (file)
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -719,13 +719,20 @@ struct gl_colorbuffer_attrib
     */
    /*@{*/
    GLbitfield BlendEnabled;            /**< Per-buffer blend enable flags */
-   GLenum BlendSrcRGB;                 /**< Blending source operator */
-   GLenum BlendDstRGB;                 /**< Blending destination operator */
-   GLenum BlendSrcA;                   /**< GL_INGR_blend_func_separate */
-   GLenum BlendDstA;                   /**< GL_INGR_blend_func_separate */
-   GLenum BlendEquationRGB;            /**< Blending equation */
-   GLenum BlendEquationA;              /**< GL_EXT_blend_equation_separate */
    GLfloat BlendColor[4];              /**< Blending color */
+   struct
+   {
+      GLenum SrcRGB;             /**< RGB blend source term */
+      GLenum DstRGB;             /**< RGB blend dest term */
+      GLenum SrcA;               /**< Alpha blend source term */
+      GLenum DstA;               /**< Alpha blend dest term */
+      GLenum EquationRGB;        /**< GL_ADD, GL_SUBTRACT, etc. */
+      GLenum EquationA;          /**< GL_ADD, GL_SUBTRACT, etc. */
+   } Blend[MAX_DRAW_BUFFERS];
+   /** Are the blend func terms currently different for each buffer/target? */
+   GLboolean _BlendFuncPerBuffer;
+   /** Are the blend equations currently different for each buffer/target? */
+   GLboolean _BlendEquationPerBuffer;
    /*@}*/
 
    /** 
@@ -2679,6 +2686,7 @@ struct gl_extensions
    GLboolean ARB_depth_clamp;
    GLboolean ARB_depth_texture;
    GLboolean ARB_draw_buffers;
+   GLboolean ARB_draw_buffers_blend;
    GLboolean ARB_draw_elements_base_vertex;
    GLboolean ARB_draw_instanced;
    GLboolean ARB_fragment_coord_conventions;