[Mesa-dev] [PATCH 2/7] st/mesa: Remove support for GL_EXT_blend_logic_op

[Ian Romanick]

From: Ian Romanick <ian.d.romanick at intel.com>

It was broken, and it isn't really useful anyway.

Cc: Brian Paul <brianp at vmware.com>
Cc: Roland Scheidegger <sroland at vmware.com>
Cc: Marek Olšák <maraeo at gmail.com>
---
 src/mesa/state_tracker/st_atom_blend.c |   10 +---------
 src/mesa/state_tracker/st_extensions.c |    1 -
 2 files changed, 1 insertions(+), 10 deletions(-)

diff --git a/src/mesa/state_tracker/st_atom_blend.c b/src/mesa/state_tracker/st_atom_blend.c
index 4c9a2b9..1ffc2f1 100644
--- a/src/mesa/state_tracker/st_atom_blend.c
+++ b/src/mesa/state_tracker/st_atom_blend.c
@@ -200,15 +200,7 @@ update_blend( struct st_context *st )
       num_state = ctx->Const.MaxDrawBuffers;
       blend->independent_blend_enable = 1;
    }
-   /* Note it is impossible to correctly deal with EXT_blend_logic_op and
-      EXT_draw_buffers2/EXT_blend_equation_separate at the same time.
-      These combinations would require support for per-rt logicop enables
-      and separate alpha/rgb logicop/blend support respectively. Neither
-      possible in gallium nor most hardware. Assume these combinations
-      don't happen. */
-   if (ctx->Color.ColorLogicOpEnabled ||
-       (ctx->Color.BlendEnabled &&
-        ctx->Color.Blend[0].EquationRGB == GL_LOGIC_OP)) {
+   if (ctx->Color.ColorLogicOpEnabled) {
       /* logicop enabled */
       blend->logicop_enable = 1;
       blend->logicop_func = translate_logicop(ctx->Color.LogicOp);
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 9f55676..3ed3abb 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -264,7 +264,6 @@ void st_init_extensions(struct st_context *st)
 
    ctx->Extensions.EXT_blend_color = GL_TRUE;
    ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
-   ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
    ctx->Extensions.EXT_blend_minmax = GL_TRUE;
    ctx->Extensions.EXT_blend_subtract = GL_TRUE;
    ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
-- 
1.7.6