From: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Date: Tue, 9 Jun 2015 07:16:33 +0000 (+0200)
Subject: i965: set ARB_shader_storage_buffer_object related constant values
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=36f392c4ef5fd8793127132f9b4465249e92c9ce;p=mesa.git

i965: set ARB_shader_storage_buffer_object related constant values

v2:
- Add tessellation shader constants assignment

v3:
- Set MaxShaderStorageBufferBindings to 36.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
---

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 0cfc8435964..47203c1701b 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -579,6 +579,18 @@ brw_initialize_context_constants(struct brw_context *brw)
    ctx->Const.TextureBufferOffsetAlignment = 16;
    ctx->Const.MaxTextureBufferSize = 128 * 1024 * 1024;
 
+   /* FIXME: Tessellation stages are not yet supported in i965, so
+    * MaxCombinedShaderStorageBlocks doesn't take them into account.
+    */
+   ctx->Const.Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks = 12;
+   ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks = 12;
+   ctx->Const.Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks = 0;
+   ctx->Const.Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks = 0;
+   ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks = 12;
+   ctx->Const.Program[MESA_SHADER_COMPUTE].MaxShaderStorageBlocks = 12;
+   ctx->Const.MaxCombinedShaderStorageBlocks = 12 * 3;
+   ctx->Const.MaxShaderStorageBufferBindings = 36;
+
    if (brw->gen >= 6) {
       ctx->Const.MaxVarying = 32;
       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 128;