Mesa (master): i965: Add support for GL_EXT_packed_float.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: 03e623a27b95ef228fb4fca71c6d7c7a21630033
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=03e623a27b95ef228fb4fca71c6d7c7a21630033

Author: Eric Anholt <eric at anholt.net>
Date:   Tue Sep 20 15:27:07 2011 -0700

i965: Add support for GL_EXT_packed_float.

This doesn't cover support for this format as a renderbuffer yet.  The
spec allows implementations to not support it, though it is something
we do want to support.

Only one failure in piglit on gen6, which is texwrap with bordercolor
(as usual).

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

---

 docs/relnotes-7.12.html                          |    1 +
 src/mesa/drivers/dri/i965/brw_wm_surface_state.c |    1 +
 src/mesa/drivers/dri/intel/intel_context.c       |    3 +++
 src/mesa/drivers/dri/intel/intel_extensions.c    |    1 +
 4 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/docs/relnotes-7.12.html b/docs/relnotes-7.12.html
index f469f10..19b918b 100644
--- a/docs/relnotes-7.12.html
+++ b/docs/relnotes-7.12.html
@@ -37,6 +37,7 @@ tbd
 <h2>New features</h2>
 <ul>
 <li>GL_EXT_texture_shared_exponent (i965)
+<li>GL_EXT_packed_float (i965)
 </ul>
 
 
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 20e7265..5be5c16 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -122,6 +122,7 @@ brw_format_for_mesa_format(gl_format mesa_format)
       [MESA_FORMAT_RG_RGTC2] = BRW_SURFACEFORMAT_BC5_UNORM,
       [MESA_FORMAT_SIGNED_RG_RGTC2] = BRW_SURFACEFORMAT_BC5_SNORM,
       [MESA_FORMAT_RGB9_E5_FLOAT] = BRW_SURFACEFORMAT_R9G9B9E5_SHAREDEXP,
+      [MESA_FORMAT_R11_G11_B10_FLOAT] = BRW_SURFACEFORMAT_R11G11B10_FLOAT,
    };
    assert(mesa_format < MESA_FORMAT_COUNT);
    return table[mesa_format];
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index ada503f..caac24a 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -733,6 +733,9 @@ intelInitContext(struct intel_context *intel,
 
    /* GL_EXT_texture_shared_exponent */
    ctx->TextureFormatSupported[MESA_FORMAT_RGB9_E5_FLOAT] = GL_TRUE;
+
+   /* GL_EXT_packed_float */
+   ctx->TextureFormatSupported[MESA_FORMAT_R11_G11_B10_FLOAT] = GL_TRUE;
 #endif
 
 #endif /* !I915 */
diff --git a/src/mesa/drivers/dri/intel/intel_extensions.c b/src/mesa/drivers/dri/intel/intel_extensions.c
index 43f0d83..f6b8258 100644
--- a/src/mesa/drivers/dri/intel/intel_extensions.c
+++ b/src/mesa/drivers/dri/intel/intel_extensions.c
@@ -133,6 +133,7 @@ intelInitExtensions(struct gl_context *ctx)
 #ifdef TEXTURE_FLOAT_ENABLED
       ctx->Extensions.ARB_texture_float = true;
       ctx->Extensions.EXT_texture_shared_exponent = true;
+      ctx->Extensions.EXT_packed_float = true;
 #endif
       ctx->Extensions.ARB_texture_compression_rgtc = true;
       ctx->Extensions.ARB_texture_rg = true;