[Mesa-dev] [PATCH 1/2] st_extensions: fixup GLSL 1.30 related enables

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This just fixes up the enables for native integers and EXT_texture_integer
support in st/mesa.

It also set the MaxClipPlanes to 8.

We should consider exposing caps for MCP vs MCD, but since core
mesa doesn't care yet maybe we can wait for now.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/mesa/state_tracker/st_extensions.c |   31 +++++++++++++++++++++++++------
 1 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index a9d4054..d583c88 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -263,12 +263,6 @@ void st_init_extensions(struct st_context *st)
    ctx->Const.GLSLVersion = 120;
    _mesa_override_glsl_version(st->ctx);
 
-   /* Extensions that only depend on the GLSL version:
-    */
-   if (ctx->Const.GLSLVersion >= 130) {
-      ctx->Extensions.ARB_conservative_depth = GL_TRUE;
-   }
-
    /*
     * Extensions that are supported by all Gallium drivers:
     */
@@ -587,6 +581,23 @@ void st_init_extensions(struct st_context *st)
 #endif
    }
 
+   if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
+                                PIPE_SHADER_CAP_INTEGERS) &&
+       screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
+                                PIPE_SHADER_CAP_INTEGERS)) {
+      ctx->Const.NativeIntegers = GL_TRUE;
+   }
+
+   if (ctx->Const.NativeIntegers)
+      ctx->Const.GLSLVersion = 130;
+
+   /* Extensions that only depend on the GLSL version:
+    */
+   if (ctx->Const.GLSLVersion >= 130) {
+      ctx->Extensions.ARB_conservative_depth = GL_TRUE;
+      ctx->Const.MaxClipPlanes = 8;
+   }
+
    ctx->Extensions.NV_primitive_restart = GL_TRUE;
    if (!screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {
       st->sw_primitive_restart = GL_TRUE;
@@ -703,4 +714,12 @@ void st_init_extensions(struct st_context *st)
          ctx->Extensions.ARB_transform_feedback2 = GL_TRUE;
       }
    }
+
+   if (ctx->Const.NativeIntegers &&
+       screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UINT, PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET) &&
+       screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SINT, PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET))
+      ctx->Extensions.EXT_texture_integer = GL_TRUE;
+
 }
-- 
1.7.7.4