From: Eric Anholt <eric@anholt.net>
Date: Thu, 25 Apr 2013 19:06:23 +0000 (-0700)
Subject: i965: Remove GL_ARB_color_buffer_float from GL core contexts.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bd850cb4f2c77e2eb6716c865c40b9976633fc23;p=mesa.git

i965: Remove GL_ARB_color_buffer_float from GL core contexts.

Of the 3 controls in the extension, one was kept in GL core and the other
two were explicitly deprecated and the reasonable default behavior was
encoded in the spec.  By not exposing the extension, we avoid shader
recompiles when switching between float and unorm color buffers.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
---

diff --git a/src/mesa/drivers/dri/intel/intel_extensions.c b/src/mesa/drivers/dri/intel/intel_extensions.c
index 18f19b8eefe..8d8e325a2c9 100644
--- a/src/mesa/drivers/dri/intel/intel_extensions.c
+++ b/src/mesa/drivers/dri/intel/intel_extensions.c
@@ -125,7 +125,8 @@ intelInitExtensions(struct gl_context *ctx)
    if (intel->gen >= 4) {
       if (ctx->API == API_OPENGL_CORE)
          ctx->Extensions.ARB_base_instance = true;
-      ctx->Extensions.ARB_color_buffer_float = true;
+      if (ctx->API != API_OPENGL_CORE)
+         ctx->Extensions.ARB_color_buffer_float = true;
       ctx->Extensions.ARB_depth_buffer_float = true;
       ctx->Extensions.ARB_depth_clamp = true;
       ctx->Extensions.ARB_draw_instanced = true;