[Mesa-dev] [PATCH 1/2] i965: Add support for GL_EXT_texture_shared_exponent.

[Eric Anholt]

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 ac20788..9dd8bde 100644
--- a/docs/relnotes-7.12.html
+++ b/docs/relnotes-7.12.html
@@ -36,6 +36,7 @@ tbd
 
 <h2>New features</h2>
 <ul>
+<li>GL_EXT_texture_shared_exponent (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 1df2202..20e7265 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -121,6 +121,7 @@ brw_format_for_mesa_format(gl_format mesa_format)
       [MESA_FORMAT_SIGNED_RED_RGTC1] = BRW_SURFACEFORMAT_BC4_SNORM,
       [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,
    };
    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 2589ee5..ada503f 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -730,6 +730,9 @@ intelInitContext(struct intel_context *intel,
    ctx->TextureFormatSupported[MESA_FORMAT_LUMINANCE_FLOAT32] = GL_TRUE;
    ctx->TextureFormatSupported[MESA_FORMAT_ALPHA_FLOAT32] = GL_TRUE;
    ctx->TextureFormatSupported[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32] = GL_TRUE;
+
+   /* GL_EXT_texture_shared_exponent */
+   ctx->TextureFormatSupported[MESA_FORMAT_RGB9_E5_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 3727b05..9157ef9 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)
       ctx->Extensions.ARB_shader_texture_lod = true;
 #ifdef TEXTURE_FLOAT_ENABLED
       ctx->Extensions.ARB_texture_float = true;
+      ctx->Extensions.EXT_texture_shared_exponent = true;
 #endif
       ctx->Extensions.ARB_texture_compression_rgtc = true;
       ctx->Extensions.ARB_texture_rg = true;
-- 
1.7.5.4