1 files changed, 30 insertions, 14 deletions

diff --git a/src/mesa/state_tracker/st_atom_blend.c b/src/mesa/state_tracker/st_atom_blend.c
index a8ec4adce7..fb1c7a4efe 100644
--- a/src/mesa/state_tracker/st_atom_blend.c
+++ b/src/mesa/state_tracker/st_atom_blend.c
@@ -169,13 +169,18 @@ colormask_per_rt(struct gl_context *ctx)
 }
 
 /**
- * Figure out if blend enables are different per rt.
+ * Figure out if blend enables/state are different per rt.
  */
 static GLboolean
 blend_per_rt(struct gl_context *ctx)
 {
    if (ctx->Color.BlendEnabled &&
       (ctx->Color.BlendEnabled != ((1 << ctx->Const.MaxDrawBuffers) - 1))) {
+      /* This can only happen if GL_EXT_draw_buffers2 is enabled */
+      return GL_TRUE;
+   }
+   if (ctx->Color._BlendFuncPerBuffer || ctx->Color._BlendEquationPerBuffer) {
+      /* this can only happen if GL_ARB_draw_buffers_blend is enabled */
       return GL_TRUE;
    }
    return GL_FALSE;
@@ -186,7 +191,7 @@ update_blend( struct st_context *st )
 {
    struct pipe_blend_state *blend = &st->state.blend;
    unsigned num_state = 1;
-   unsigned i;
+   unsigned i, j;
 
    memset(blend, 0, sizeof(*blend));
 
@@ -202,39 +207,50 @@ update_blend( struct st_context *st )
       don't happen. */
    if (st->ctx->Color.ColorLogicOpEnabled ||
        (st->ctx->Color.BlendEnabled &&
-        st->ctx->Color.BlendEquationRGB == GL_LOGIC_OP)) {
+        st->ctx->Color.Blend[0].EquationRGB == GL_LOGIC_OP)) {
       /* logicop enabled */
       blend->logicop_enable = 1;
       blend->logicop_func = translate_logicop(st->ctx->Color.LogicOp);
    }
    else if (st->ctx->Color.BlendEnabled) {
       /* blending enabled */
-      for (i = 0; i < num_state; i++) {
+      for (i = 0, j = 0; i < num_state; i++) {
 
          blend->rt[i].blend_enable = (st->ctx->Color.BlendEnabled >> i) & 0x1;
 
-         blend->rt[i].rgb_func = translate_blend(st->ctx->Color.BlendEquationRGB);
-         if (st->ctx->Color.BlendEquationRGB == GL_MIN ||
-             st->ctx->Color.BlendEquationRGB == GL_MAX) {
+         if (st->ctx->Extensions.ARB_draw_buffers_blend)
+            j = i;
+
+         blend->rt[i].rgb_func =
+            translate_blend(st->ctx->Color.Blend[j].EquationRGB);
+
+         if (st->ctx->Color.Blend[i].EquationRGB == GL_MIN ||
+             st->ctx->Color.Blend[i].EquationRGB == GL_MAX) {
             /* Min/max are special */
             blend->rt[i].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
             blend->rt[i].rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
          }
          else {
-            blend->rt[i].rgb_src_factor = translate_blend(st->ctx->Color.BlendSrcRGB);
-            blend->rt[i].rgb_dst_factor = translate_blend(st->ctx->Color.BlendDstRGB);
+            blend->rt[i].rgb_src_factor =
+               translate_blend(st->ctx->Color.Blend[j].SrcRGB);
+            blend->rt[i].rgb_dst_factor =
+               translate_blend(st->ctx->Color.Blend[j].DstRGB);
          }
 
-         blend->rt[i].alpha_func = translate_blend(st->ctx->Color.BlendEquationA);
-         if (st->ctx->Color.BlendEquationA == GL_MIN ||
-             st->ctx->Color.BlendEquationA == GL_MAX) {
+         blend->rt[i].alpha_func =
+            translate_blend(st->ctx->Color.Blend[j].EquationA);
+
+         if (st->ctx->Color.Blend[i].EquationA == GL_MIN ||
+             st->ctx->Color.Blend[i].EquationA == GL_MAX) {
             /* Min/max are special */
             blend->rt[i].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
             blend->rt[i].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
          }
          else {
-            blend->rt[i].alpha_src_factor = translate_blend(st->ctx->Color.BlendSrcA);
-            blend->rt[i].alpha_dst_factor = translate_blend(st->ctx->Color.BlendDstA);
+            blend->rt[i].alpha_src_factor =
+               translate_blend(st->ctx->Color.Blend[j].SrcA);
+            blend->rt[i].alpha_dst_factor =
+               translate_blend(st->ctx->Color.Blend[j].DstA);
          }
       }
    }