st/mesa: provide GL_OES_copy_image support by caching the original ETC data
[mesa.git] / src / mesa / state_tracker / st_extensions.c
index 4b9a3bd2858b9490a82998fbea1d5cecd6ebf89f..1f53bdfd3650ea2cab98d8f069dd15f73e0cf548 100644 (file)
@@ -105,6 +105,9 @@ void st_init_limits(struct pipe_screen *screen,
    c->MaxViewportHeight =
    c->MaxRenderbufferSize = c->MaxTextureRectSize;
 
+   c->ViewportSubpixelBits =
+      screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
+
    c->MaxDrawBuffers = c->MaxColorAttachments =
       _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
              1, MAX_DRAW_BUFFERS);
@@ -314,6 +317,9 @@ void st_init_limits(struct pipe_screen *screen,
    }
 
    c->LowerTessLevel = true;
+   c->LowerCsDerivedVariables = true;
+   c->PrimitiveRestartForPatches =
+      screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
 
    c->MaxCombinedTextureImageUnits =
          _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
@@ -440,7 +446,6 @@ void st_init_limits(struct pipe_screen *screen,
          c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
    c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
    c->MaxImageUnits = MAX_IMAGE_UNITS;
-   c->MaxImageSamples = 0; /* XXX */
    if (c->MaxCombinedImageUniforms) {
       extensions->ARB_shader_image_load_store = GL_TRUE;
       extensions->ARB_shader_image_size = GL_TRUE;
@@ -457,6 +462,9 @@ void st_init_limits(struct pipe_screen *screen,
     */
    c->MaxFramebufferLayers =
       screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
+
+   c->MaxWindowRectangles =
+      screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
 }
 
 
@@ -574,6 +582,7 @@ void st_init_extensions(struct pipe_screen *screen,
       { o(ARB_color_buffer_float),           PIPE_CAP_VERTEX_COLOR_UNCLAMPED           },
       { o(ARB_conditional_render_inverted),  PIPE_CAP_CONDITIONAL_RENDER_INVERTED      },
       { o(ARB_copy_image),                   PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
+      { o(OES_copy_image),                   PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
       { o(ARB_cull_distance),                PIPE_CAP_CULL_DISTANCE                    },
       { o(ARB_depth_clamp),                  PIPE_CAP_DEPTH_CLIP_DISABLE               },
       { o(ARB_depth_texture),                PIPE_CAP_TEXTURE_SHADOW_MAP               },
@@ -594,6 +603,7 @@ void st_init_extensions(struct pipe_screen *screen,
       { o(ARB_sample_shading),               PIPE_CAP_SAMPLE_SHADING                   },
       { o(ARB_seamless_cube_map),            PIPE_CAP_SEAMLESS_CUBE_MAP                },
       { o(ARB_shader_draw_parameters),       PIPE_CAP_DRAW_PARAMETERS                  },
+      { o(ARB_shader_group_vote),            PIPE_CAP_TGSI_VOTE                        },
       { o(ARB_shader_stencil_export),        PIPE_CAP_SHADER_STENCIL_EXPORT            },
       { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS                        },
       { o(ARB_shader_texture_lod),           PIPE_CAP_SM3                              },
@@ -620,6 +630,7 @@ void st_init_extensions(struct pipe_screen *screen,
       { o(EXT_texture_mirror_clamp),         PIPE_CAP_TEXTURE_MIRROR_CLAMP             },
       { o(EXT_texture_swizzle),              PIPE_CAP_TEXTURE_SWIZZLE                  },
       { o(EXT_transform_feedback),           PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS        },
+      { o(EXT_window_rectangles),            PIPE_CAP_MAX_WINDOW_RECTANGLES            },
 
       { o(AMD_pinned_memory),                PIPE_CAP_RESOURCE_FROM_USER_MEMORY        },
       { o(ATI_meminfo),                      PIPE_CAP_QUERY_MEMORY_INFO                },
@@ -770,6 +781,8 @@ void st_init_extensions(struct pipe_screen *screen,
 
    /* Required: vertex fetch support. */
    static const struct st_extension_format_mapping vertex_mapping[] = {
+      { { o(EXT_vertex_array_bgra) },
+        { PIPE_FORMAT_B8G8R8A8_UNORM } },
       { { o(ARB_vertex_type_2_10_10_10_rev) },
         { PIPE_FORMAT_R10G10B10A2_UNORM,
           PIPE_FORMAT_B10G10R10A2_UNORM,
@@ -822,7 +835,6 @@ void st_init_extensions(struct pipe_screen *screen,
    extensions->EXT_provoking_vertex = GL_TRUE;
 
    extensions->EXT_texture_env_dot3 = GL_TRUE;
-   extensions->EXT_vertex_array_bgra = GL_TRUE;
 
    extensions->ATI_fragment_shader = GL_TRUE;
    extensions->ATI_texture_env_combine3 = GL_TRUE;
@@ -902,6 +914,7 @@ void st_init_extensions(struct pipe_screen *screen,
 
       extensions->EXT_shader_integer_mix = GL_TRUE;
       extensions->ARB_arrays_of_arrays = GL_TRUE;
+      extensions->MESA_shader_integer_functions = GL_TRUE;
    } else {
       /* Optional integer support for GLSL 1.2. */
       if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
@@ -917,6 +930,8 @@ void st_init_extensions(struct pipe_screen *screen,
       extensions->EXT_texture_integer = GL_FALSE;
    }
 
+   consts->GLSLZeroInit = options->glsl_zero_init;
+
    consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
 
    /* Below are the cases which cannot be moved into tables easily. */
@@ -941,17 +956,6 @@ void st_init_extensions(struct pipe_screen *screen,
    extensions->OES_sample_variables = extensions->ARB_sample_shading &&
       extensions->ARB_gpu_shader5;
 
-   /* If we don't have native ETC2 support, we don't keep track of the
-    * original ETC2 data. This is necessary to be able to copy images between
-    * compatible view classes.
-    */
-   if (extensions->ARB_copy_image && screen->is_format_supported(
-             screen, PIPE_FORMAT_ETC2_RGB8,
-             PIPE_TEXTURE_2D, 0,
-             PIPE_BIND_SAMPLER_VIEW)) {
-      extensions->OES_copy_image = GL_TRUE;
-   }
-
    /* Maximum sample count. */
    {
       enum pipe_format color_formats[] = {
@@ -979,6 +983,11 @@ void st_init_extensions(struct pipe_screen *screen,
                                      color_formats, 16,
                                      PIPE_BIND_RENDER_TARGET);
 
+      consts->MaxImageSamples =
+         get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
+                                     color_formats, 16,
+                                     PIPE_BIND_SHADER_IMAGE);
+
       consts->MaxColorTextureSamples =
          get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
                                      color_formats, consts->MaxSamples,
@@ -1179,4 +1188,32 @@ void st_init_extensions(struct pipe_screen *screen,
                                       extensions->ARB_shader_atomic_counters;
       }
    }
+
+   /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
+    * there's no clean way of telling whether we would support ES 3.1 from
+    * here, so copy the condition from compute_version_es2 here. A lot of
+    * these are redunant, but simpler to just have a (near-)exact copy here.
+    */
+   extensions->ARB_ES3_1_compatibility =
+      extensions->ARB_ES3_compatibility &&
+      extensions->ARB_arrays_of_arrays &&
+      extensions->ARB_compute_shader &&
+      extensions->ARB_draw_indirect &&
+      extensions->ARB_explicit_uniform_location &&
+      extensions->ARB_framebuffer_no_attachments &&
+      extensions->ARB_shader_atomic_counters &&
+      extensions->ARB_shader_image_load_store &&
+      extensions->ARB_shader_image_size &&
+      extensions->ARB_shader_storage_buffer_object &&
+      extensions->ARB_shading_language_packing &&
+      extensions->ARB_stencil_texturing &&
+      extensions->ARB_texture_multisample &&
+      extensions->ARB_gpu_shader5 &&
+      extensions->EXT_shader_integer_mix;
+
+   /* And if we have enough for ES 3.1, we can also expose
+    * OES_shader_io_blocks, which is only hidden due to the compiler not being
+    * able to version-restrict things.
+    */
+   extensions->OES_shader_io_blocks = extensions->ARB_ES3_1_compatibility;
 }