Mesa (master): i965: Enable ChooseTexFormat for supported GL_EXT_texture_integer formats.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: a00c5a71cd95d340f9ba54a0360f654414d627d2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a00c5a71cd95d340f9ba54a0360f654414d627d2

Author: Eric Anholt <eric at anholt.net>
Date:   Wed Oct  5 13:42:19 2011 -0700

i965: Enable ChooseTexFormat for supported GL_EXT_texture_integer formats.

v2: s/GL_TRUE/true/, and re-enable RGB_INT32 based on discussion
    yesterday about required RB formats vs texture formats.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org> (v1)

---

 src/mesa/drivers/dri/intel/intel_context.c |   30 ++++++++++++++++++++++++++++
 1 files changed, 30 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 3e10ce0..d00d5d4 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -710,6 +710,36 @@ intelInitContext(struct intel_context *intel,
       ctx->TextureFormatSupported[MESA_FORMAT_SLA8] = true;
    }
 
+   if (intel->gen >= 4) {
+      /* Each combination of 32-bit ints are supported, but the RGB 32-bit ints
+       * don't support use as a render target (GPU hangs).
+       */
+      ctx->TextureFormatSupported[MESA_FORMAT_R_INT32] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RG_INT32] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RGB_INT32] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RGBA_INT32] = true;
+
+      ctx->TextureFormatSupported[MESA_FORMAT_R_UINT32] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RG_UINT32] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RGB_UINT32] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RGBA_UINT32] = true;
+
+      /* For 16 and 8 bits, RGB is unsupported entirely. */
+      ctx->TextureFormatSupported[MESA_FORMAT_R_UINT16] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RG_UINT16] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RGBA_UINT16] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_R_INT16] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RG_INT16] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RGBA_INT16] = true;
+
+      ctx->TextureFormatSupported[MESA_FORMAT_R_UINT8] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RG_UINT8] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RGBA_UINT8] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_R_INT8] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RG_INT8] = true;
+      ctx->TextureFormatSupported[MESA_FORMAT_RGBA_INT8] = true;
+   }
+
 #ifdef TEXTURE_FLOAT_ENABLED
    ctx->TextureFormatSupported[MESA_FORMAT_RGBA_FLOAT32] = true;
    ctx->TextureFormatSupported[MESA_FORMAT_RG_FLOAT32] = true;