Mesa (master): intel: Enable GL_ARB_internalformat_query

[Ian Romanick]

Module: Mesa
Branch: master
Commit: 3c00a52f7e02007f40fa53a06fad517bed0328ff
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3c00a52f7e02007f40fa53a06fad517bed0328ff

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Sat Dec  1 11:06:31 2012 -0800

intel: Enable GL_ARB_internalformat_query

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Eric Anholt <eric at anholt.net>
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>

---

 src/mesa/drivers/dri/i965/brw_context.c       |   23 +++++++++++++++++++++++
 src/mesa/drivers/dri/intel/intel_extensions.c |    1 +
 2 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 70657b7..7b53360 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -58,6 +58,28 @@
  * Mesa's Driver Functions
  ***************************************/
 
+static size_t
+brw_query_samples_for_format(struct gl_context *ctx, GLenum internalFormat,
+                             int samples[16])
+{
+   struct intel_context *intel = intel_context(ctx);
+
+   switch (intel->gen) {
+   case 7:
+      samples[0] = 8;
+      samples[1] = 4;
+      return 2;
+
+   case 6:
+      samples[0] = 4;
+      return 1;
+
+   default:
+      samples[0] = 1;
+      return 1;
+   }
+}
+
 static void brwInitDriverFunctions(struct intel_screen *screen,
 				   struct dd_function_table *functions)
 {
@@ -66,6 +88,7 @@ static void brwInitDriverFunctions(struct intel_screen *screen,
    brwInitFragProgFuncs( functions );
    brw_init_queryobj_functions(functions);
 
+   functions->QuerySamplesForFormat = brw_query_samples_for_format;
    functions->BeginTransformFeedback = brw_begin_transform_feedback;
 
    if (screen->gen >= 7)
diff --git a/src/mesa/drivers/dri/intel/intel_extensions.c b/src/mesa/drivers/dri/intel/intel_extensions.c
index 5c6b651..8d92df2 100755
--- a/src/mesa/drivers/dri/intel/intel_extensions.c
+++ b/src/mesa/drivers/dri/intel/intel_extensions.c
@@ -47,6 +47,7 @@ intelInitExtensions(struct gl_context *ctx)
    ctx->Extensions.ARB_explicit_attrib_location = true;
    ctx->Extensions.ARB_framebuffer_object = true;
    ctx->Extensions.ARB_half_float_pixel = true;
+   ctx->Extensions.ARB_internalformat_query = true;
    ctx->Extensions.ARB_map_buffer_range = true;
    ctx->Extensions.ARB_point_sprite = true;
    ctx->Extensions.ARB_shader_objects = true;