[Mesa-dev] [PATCH 2/2] i965: Add support for GL_EXT_packed_float.

[Eric Anholt]

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).
---
 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 9dd8bde..ff98bb6 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 9157ef9..2112916 100644
--- a/src/mesa/drivers/dri/intel/intel_extensions.c
+++ b/src/mesa/drivers/dri/intel/intel_extensions.c
@@ -134,6 +134,7 @@ 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;
-- 
1.7.5.4