mesa: remove struct gl_extensions::ATI_separate_stencil

Virtually every driver that supports ATI_separate_stencil
also supports EXT_stencil_two_side.

Use the latter boolean for both extension. With that in mind we can drop
the explicit true from the drivers and the nasty comment in
compute_version().

Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>

7 files changed, 2 insertions, 15 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_extensions.c b/src/mesa/drivers/dri/i915/intel_extensions.c
index c3851530139..05ac4874947 100644
--- a/src/mesa/drivers/dri/i915/intel_extensions.c
+++ b/src/mesa/drivers/dri/i915/intel_extensions.c
@@ -90,7 +90,6 @@ intelInitExtensions(struct gl_context *ctx)
       ctx->Extensions.EXT_texture_sRGB = true;
       ctx->Extensions.EXT_texture_sRGB_decode = true;
       ctx->Extensions.EXT_stencil_two_side = true;
-      ctx->Extensions.ATI_separate_stencil = true;
       ctx->Extensions.ATI_texture_env_combine3 = true;
       ctx->Extensions.NV_texture_env_combine4 = true;
 
diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
index 5a9369d7b43..f8373564783 100644
--- a/src/mesa/drivers/dri/i965/intel_extensions.c
+++ b/src/mesa/drivers/dri/i965/intel_extensions.c
@@ -118,7 +118,6 @@ intelInitExtensions(struct gl_context *ctx)
    ctx->Extensions.KHR_robustness = true;
    ctx->Extensions.AMD_seamless_cubemap_per_texture = true;
    ctx->Extensions.APPLE_object_purgeable = true;
-   ctx->Extensions.ATI_separate_stencil = true;
    ctx->Extensions.ATI_texture_env_combine3 = true;
    ctx->Extensions.MESA_pack_invert = true;
    ctx->Extensions.NV_conditional_render = true;
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 5c8bd7a8741..25c3161f7d0 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -142,7 +142,6 @@ _mesa_enable_sw_extensions(struct gl_context *ctx)
    ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE;
    ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
    ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
-   ctx->Extensions.ATI_separate_stencil = GL_TRUE;
    ctx->Extensions.EXT_blend_color = GL_TRUE;
    ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
    ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
index 1c55df8a228..7af48a4ad91 100644
--- a/src/mesa/main/extensions_table.h
+++ b/src/mesa/main/extensions_table.h
@@ -189,7 +189,7 @@ EXT(ATI_blend_equation_separate             , EXT_blend_equation_separate
 EXT(ATI_draw_buffers                        , dummy_true                             , GLL,  x ,  x ,  x , 2002)
 EXT(ATI_fragment_shader                     , ATI_fragment_shader                    , GLL,  x ,  x ,  x , 2001)
 EXT(ATI_meminfo                             , ATI_meminfo                            , GLL, GLC,  x ,  x , 2009)
-EXT(ATI_separate_stencil                    , ATI_separate_stencil                   , GLL,  x ,  x ,  x , 2006)
+EXT(ATI_separate_stencil                    , EXT_stencil_two_side                   , GLL,  x ,  x ,  x , 2006)
 EXT(ATI_texture_compression_3dc             , ATI_texture_compression_3dc            , GLL,  x ,  x ,  x , 2004)
 EXT(ATI_texture_env_combine3                , ATI_texture_env_combine3               , GLL,  x ,  x ,  x , 2002)
 EXT(ATI_texture_float                       , ARB_texture_float                      , GLL, GLC,  x ,  x , 2002)
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 220751ba7bb..19c673eb1dc 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -4238,7 +4238,6 @@ struct gl_extensions
    GLboolean ATI_texture_mirror_once;
    GLboolean ATI_texture_env_combine3;
    GLboolean ATI_fragment_shader;
-   GLboolean ATI_separate_stencil;
    GLboolean GREMEDY_string_marker;
    GLboolean INTEL_conservative_rasterization;
    GLboolean INTEL_performance_query;
diff --git a/src/mesa/main/version.c b/src/mesa/main/version.c
index 1bdccf4a1df..42f58ba175b 100644
--- a/src/mesa/main/version.c
+++ b/src/mesa/main/version.c
@@ -263,15 +263,7 @@ compute_version(const struct gl_extensions *extensions,
                          extensions->ARB_fragment_shader &&
                          extensions->ARB_texture_non_power_of_two &&
                          extensions->EXT_blend_equation_separate &&
-
-                         /* Technically, 2.0 requires the functionality of the
-                          * EXT version.  Enable 2.0 if either extension is
-                          * available, and assume that a driver that only
-                          * exposes the ATI extension will fallback to
-                          * software when necessary.
-                          */
-                         (extensions->EXT_stencil_two_side
-                          || extensions->ATI_separate_stencil));
+                         extensions->EXT_stencil_two_side);
    const bool ver_2_1 = (ver_2_0 &&
                          extensions->EXT_pixel_buffer_object &&
                          extensions->EXT_texture_sRGB);
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index f18eafe898d..274df7bd6a6 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -901,7 +901,6 @@ void st_init_extensions(struct pipe_screen *screen,
    extensions->EXT_texture_env_dot3 = GL_TRUE;
 
    extensions->ATI_fragment_shader = GL_TRUE;
-   extensions->ATI_separate_stencil = GL_TRUE;
    extensions->ATI_texture_env_combine3 = GL_TRUE;
 
    extensions->MESA_pack_invert = GL_TRUE;