Mesa (master): meta: Disable GL_FRAGMENT_SHADER_ATI in MESA_META_SHADER

[Alex Deucher]

Module: Mesa
Branch: master
Commit: d8069b7603c368c59e7a605d696d2bd65ad414f6
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d8069b7603c368c59e7a605d696d2bd65ad414f6

Author: Stefan Dösinger <stefandoesinger at gmx.at>
Date:   Wed Dec  5 23:08:21 2012 +0100

meta: Disable GL_FRAGMENT_SHADER_ATI in MESA_META_SHADER

Fixes clears in Wine on r200.

NOTE: This is a candidate for stable release branches.

Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>

---

 src/mesa/drivers/common/meta.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index d5e8af3..ad21fa8 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -133,6 +133,7 @@ struct save_state
    struct gl_vertex_program *VertexProgram;
    GLboolean FragmentProgramEnabled;
    struct gl_fragment_program *FragmentProgram;
+   GLboolean ATIFragmentShaderEnabled;
    struct gl_shader_program *VertexShader;
    struct gl_shader_program *GeometryShader;
    struct gl_shader_program *FragmentShader;
@@ -594,6 +595,11 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
          _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_FALSE);
       }
 
+      if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ATI_fragment_shader) {
+         save->ATIFragmentShaderEnabled = ctx->ATIFragmentShader.Enabled;
+         _mesa_set_enable(ctx, GL_FRAGMENT_SHADER_ATI, GL_FALSE);
+      }
+
       if (ctx->Extensions.ARB_shader_objects) {
 	 _mesa_reference_shader_program(ctx, &save->VertexShader,
 					ctx->Shader.CurrentVertexProgram);
@@ -914,6 +920,11 @@ _mesa_meta_end(struct gl_context *ctx)
 	 _mesa_reference_fragprog(ctx, &save->FragmentProgram, NULL);
       }
 
+      if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ATI_fragment_shader) {
+         _mesa_set_enable(ctx, GL_FRAGMENT_SHADER_ATI,
+                          save->ATIFragmentShaderEnabled);
+      }
+
       if (ctx->Extensions.ARB_vertex_shader)
 	 _mesa_use_shader_program(ctx, GL_VERTEX_SHADER, save->VertexShader);