mesa: GL_ARB_texture_storage is not optional

In Mesa, this extension is implemented purely in software.  Drivers may
*optionally* provide optimized paths.

NOTE: This has the side effect of enabling the extension in the radeon,
r200, and nouveau drivers.

v2: Minor whitespace tidying (suggested by Brian).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

8 files changed, 4 insertions, 16 deletions

diff --git a/docs/relnotes/9.2.html b/docs/relnotes/9.2.html
index 2f2c39415d5..1f49191148e 100644
--- a/docs/relnotes/9.2.html
+++ b/docs/relnotes/9.2.html
@@ -48,6 +48,7 @@ Note: some of the new features are only available with certain drivers.
 <li>GL_ARB_texture_multisample</li>
 <li>GL_ARB_texture_storage_multisample</li>
 <li>GL_ARB_texture_query_lod</li>
+<li>Enable GL_ARB_texture_storage on radeon, r200, and nouveau</li>
 <li>Added new freedreno gallium driver</li>
 <li>OSMesa interface for gallium llvmpipe/softpipe drivers</li>
 <li>Gallium Heads-Up Display (HUD) feature for performance monitoring</li>
diff --git a/src/mesa/drivers/dri/i915/intel_extensions.c b/src/mesa/drivers/dri/i915/intel_extensions.c
index 74b304a23c4..479217b889d 100644
--- a/src/mesa/drivers/dri/i915/intel_extensions.c
+++ b/src/mesa/drivers/dri/i915/intel_extensions.c
@@ -57,7 +57,6 @@ intelInitExtensions(struct gl_context *ctx)
    ctx->Extensions.ARB_texture_env_combine = true;
    ctx->Extensions.ARB_texture_env_crossbar = true;
    ctx->Extensions.ARB_texture_env_dot3 = true;
-   ctx->Extensions.ARB_texture_storage = true;
    ctx->Extensions.ARB_vertex_program = true;
    ctx->Extensions.ARB_vertex_shader = true;
    ctx->Extensions.EXT_blend_color = true;
diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
index 23b74a521d2..50640184e66 100644
--- a/src/mesa/drivers/dri/i965/intel_extensions.c
+++ b/src/mesa/drivers/dri/i965/intel_extensions.c
@@ -79,7 +79,6 @@ intelInitExtensions(struct gl_context *ctx)
    ctx->Extensions.ARB_texture_non_power_of_two = true;
    ctx->Extensions.ARB_texture_rg = true;
    ctx->Extensions.ARB_texture_rgb10_a2ui = true;
-   ctx->Extensions.ARB_texture_storage = true;
    ctx->Extensions.ARB_vertex_program = true;
    ctx->Extensions.ARB_vertex_shader = true;
    ctx->Extensions.ARB_vertex_type_2_10_10_10_rev = true;
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 73282e13b51..f914981cb66 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -149,7 +149,7 @@ static const struct extension extension_table[] = {
    { "GL_ARB_texture_rectangle",                   o(NV_texture_rectangle),                    GL,             2004 },
    { "GL_ARB_texture_rgb10_a2ui",                  o(ARB_texture_rgb10_a2ui),                  GL,             2009 },
    { "GL_ARB_texture_rg",                          o(ARB_texture_rg),                          GL,             2008 },
-   { "GL_ARB_texture_storage",                     o(ARB_texture_storage),                     GL,             2011 },
+   { "GL_ARB_texture_storage",                     o(dummy_true),                              GL,             2011 },
    { "GL_ARB_texture_storage_multisample",         o(ARB_texture_storage_multisample),         GL,             2012 },
    { "GL_ARB_texture_swizzle",                     o(EXT_texture_swizzle),                     GL,             2008 },
    { "GL_ARB_timer_query",                         o(ARB_timer_query),                         GL,             2010 },
@@ -403,7 +403,6 @@ _mesa_enable_sw_extensions(struct gl_context *ctx)
    ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
    ctx->Extensions.ARB_texture_rg = GL_TRUE;
    ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE;
-   ctx->Extensions.ARB_texture_storage = GL_TRUE;
    ctx->Extensions.ARB_vertex_program = GL_TRUE;
    ctx->Extensions.ARB_vertex_shader = GL_TRUE;
    ctx->Extensions.ARB_sync = GL_TRUE;
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 287934139de..a19ecd6a919 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3036,7 +3036,6 @@ struct gl_extensions
    GLboolean ARB_texture_query_lod;
    GLboolean ARB_texture_rg;
    GLboolean ARB_texture_rgb10_a2ui;
-   GLboolean ARB_texture_storage;
    GLboolean ARB_texture_storage_multisample;
    GLboolean ARB_timer_query;
    GLboolean ARB_transform_feedback2;
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index 5226687ff92..11184965513 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1852,12 +1852,8 @@ legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
 static GLboolean
 mutable_tex_object(struct gl_context *ctx, GLenum target)
 {
-   if (ctx->Extensions.ARB_texture_storage) {
-      struct gl_texture_object *texObj =
-         _mesa_get_current_tex_object(ctx, target);
-      return !texObj->Immutable;
-   }
-   return GL_TRUE;
+   struct gl_texture_object *texObj = _mesa_get_current_tex_object(ctx, target);
+   return !texObj->Immutable;
 }
 
 
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 9507bc3947f..8ed8fe0980d 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -1541,8 +1541,6 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
          break;
 
       case GL_TEXTURE_IMMUTABLE_FORMAT:
-         if (!ctx->Extensions.ARB_texture_storage)
-            goto invalid_pname;
          *params = (GLfloat) obj->Immutable;
          break;
 
@@ -1724,8 +1722,6 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
          break;
 
       case GL_TEXTURE_IMMUTABLE_FORMAT:
-         if (!ctx->Extensions.ARB_texture_storage)
-            goto invalid_pname;
          *params = (GLint) obj->Immutable;
          break;
 
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index cd24ed3e27f..906eb07a220 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -542,7 +542,6 @@ void st_init_extensions(struct st_context *st)
    ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
    ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
    ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
-   ctx->Extensions.ARB_texture_storage = GL_TRUE;
    ctx->Extensions.ARB_vertex_program = GL_TRUE;
    ctx->Extensions.ARB_vertex_shader = GL_TRUE;