Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
---

The dEQP tests expect this to enable per-sample interpolation, so I had to undo
some of the changes in st/mesa from earlier to get it to pass.

 docs/GL3.txt                            | 2 +-
 src/mapi/glapi/gen/es_EXT.xml           | 6 ++++++
 src/mesa/main/enable.c                  | 4 ++--
 src/mesa/main/extensions_table.h        | 1 +
 src/mesa/main/multisample.c             | 3 ++-
 src/mesa/main/tests/dispatch_sanity.cpp | 3 +++
 6 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/docs/GL3.txt b/docs/GL3.txt
index ae439f6..2e528d4 100644
--- a/docs/GL3.txt
+++ b/docs/GL3.txt
@@ -247,7 +247,7 @@ GLES3.2, GLSL ES 3.2
   GL_OES_geometry_shader                               started (Marta)
   GL_OES_gpu_shader5                                   not started (based on 
parts of GL_ARB_gpu_shader5, which is done for some drivers)
   GL_OES_primitive_bounding box                        not started
-  GL_OES_sample_shading                                not started (based on 
parts of GL_ARB_sample_shading, which is done for some drivers)
+  GL_OES_sample_shading                                DONE (nvc0, r600, 
radeonsi)
   GL_OES_sample_variables                              DONE (nvc0, r600, 
radeonsi)
   GL_OES_shader_image_atomic                           not started (based on 
parts of GL_ARB_shader_image_load_store, which is done for some drivers)
   GL_OES_shader_io_blocks                              not started (based on 
parts of GLSL 1.50, which is done)
diff --git a/src/mapi/glapi/gen/es_EXT.xml b/src/mapi/glapi/gen/es_EXT.xml
index 93284be..35c286d 100644
--- a/src/mapi/glapi/gen/es_EXT.xml
+++ b/src/mapi/glapi/gen/es_EXT.xml
@@ -798,6 +798,12 @@
     </function>
 </category>
 
+<category name="GL_OES_sample_shading" number="169">
+    <function name="MinSampleShadingOES" alias="MinSampleShading" es2="3.0">
+        <param name="value" type="GLfloat"/>
+    </function>
+</category>
+
 <!-- 174. GL_OES_texture_storage_multisample_2d_array -->
 <category name="GL_OES_texture_storage_multisample_2d_array" number="174">
     <enum name="TEXTURE_2D_MULTISAMPLE_ARRAY_OES"              value="0x9102"/>
diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index 3985457..566b29b 100644
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -805,7 +805,7 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, 
GLboolean state)
 
       /* GL_ARB_sample_shading */
       case GL_SAMPLE_SHADING:
-         if (!_mesa_is_desktop_gl(ctx))
+         if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
          CHECK_EXTENSION(ARB_sample_shading, cap);
          if (ctx->Multisample.SampleShading == state)
@@ -1604,7 +1604,7 @@ _mesa_IsEnabled( GLenum cap )
 
       /* ARB_sample_shading */
       case GL_SAMPLE_SHADING:
-         if (!_mesa_is_desktop_gl(ctx))
+         if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
          CHECK_EXTENSION(ARB_sample_shading);
          return ctx->Multisample.SampleShading;
diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
index 196a0c6..5cf4ba5 100644
--- a/src/mesa/main/extensions_table.h
+++ b/src/mesa/main/extensions_table.h
@@ -326,6 +326,7 @@ EXT(OES_point_sprite                        , 
ARB_point_sprite
 EXT(OES_query_matrix                        , dummy_true                       
      ,  x ,  x , ES1,  x , 2003)
 EXT(OES_read_format                         , dummy_true                       
      , GLL, GLC, ES1,  x , 2003)
 EXT(OES_rgb8_rgba8                          , dummy_true                       
      ,  x ,  x , ES1, ES2, 2005)
+EXT(OES_sample_shading                      , OES_sample_variables             
      ,  x ,  x ,  x ,  30, 2014)
 EXT(OES_sample_variables                    , OES_sample_variables             
      ,  x ,  x ,  x ,  30, 2014)
 EXT(OES_single_precision                    , dummy_true                       
      ,  x ,  x , ES1,  x , 2003)
 EXT(OES_standard_derivatives                , OES_standard_derivatives         
      ,  x ,  x ,  x , ES2, 2005)
diff --git a/src/mesa/main/multisample.c b/src/mesa/main/multisample.c
index e7783ea..6b644461 100644
--- a/src/mesa/main/multisample.c
+++ b/src/mesa/main/multisample.c
@@ -127,7 +127,8 @@ _mesa_MinSampleShading(GLclampf value)
 {
    GET_CURRENT_CONTEXT(ctx);
 
-   if (!ctx->Extensions.ARB_sample_shading || !_mesa_is_desktop_gl(ctx)) {
+   if (!_mesa_has_ARB_sample_shading(ctx) &&
+       !_mesa_has_OES_sample_shading(ctx)) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glMinSampleShading");
       return;
    }
diff --git a/src/mesa/main/tests/dispatch_sanity.cpp 
b/src/mesa/main/tests/dispatch_sanity.cpp
index 3d0fce6..c323766 100644
--- a/src/mesa/main/tests/dispatch_sanity.cpp
+++ b/src/mesa/main/tests/dispatch_sanity.cpp
@@ -2449,6 +2449,9 @@ const struct function gles3_functions_possible[] = {
    /* GL_OES_copy_image */
    { "glCopyImageSubDataOES", 30, -1 },
 
+   /* GL_OES_sample_shading */
+   { "glMinSampleShadingOES", 30, -1 },
+
    { NULL, 0, -1 }
 };
 
-- 
2.4.10

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