vc4: Fix mixup of return type in reloc_tex().

[mesa.git] / src / gallium / drivers / vc4 / vc4_resource.h

diff --git a/src/gallium/drivers/vc4/vc4_resource.h b/src/gallium/drivers/vc4/vc4_resource.h
index 01f481d15c4a42c37bc33243b9874465ec8f5314..90b58e137dffb3a727c7d8d4ef1225b42bd31413 100644 (file)
--- a/src/gallium/drivers/vc4/vc4_resource.h
+++ b/src/gallium/drivers/vc4/vc4_resource.h
@@ -61,6 +61,29 @@ struct vc4_resource {
         bool tiled;
         /** One of VC4_TEXTURE_TYPE_* */
         enum vc4_texture_data_type vc4_format;
+
+        /**
+         * Number of times the resource has been written to.
+         *
+         * This is used to track when we need to update this shadow resource
+         * from its parent in the case of GL_TEXTURE_BASE_LEVEL (which we
+         * can't support in hardware) or GL_UNSIGNED_INTEGER index buffers.
+         */
+        uint64_t writes;
+
+        /**
+         * Resource containing the non-GL_TEXTURE_BASE_LEVEL-rebased texture
+         * contents, or the 4-byte index buffer.
+         *
+         * If the parent is set for an texture, then this resource is actually
+         * the texture contents just starting from the sampler_view's
+         * first_level.
+         *
+         * If the parent is set for an index index buffer, then this resource
+         * is actually a shadow containing a 2-byte index buffer starting from
+         * the ib's offset.
+         */
+        struct pipe_resource *shadow_parent;
 };
 
 static INLINE struct vc4_resource *
@@ -83,5 +106,11 @@ vc4_transfer(struct pipe_transfer *ptrans)
 
 void vc4_resource_screen_init(struct pipe_screen *pscreen);
 void vc4_resource_context_init(struct pipe_context *pctx);
+struct pipe_resource *vc4_resource_create(struct pipe_screen *pscreen,
+                                          const struct pipe_resource *tmpl);
+void vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
+                                         struct pipe_sampler_view *view);
+void vc4_update_shadow_index_buffer(struct pipe_context *pctx,
+                                    const struct pipe_index_buffer *ib);
 
 #endif /* VC4_RESOURCE_H */