mesa: Track the current vertex/element array buffers for glthread.

[mesa.git] / src / mesa / main / marshal.h

diff --git a/src/mesa/main/marshal.h b/src/mesa/main/marshal.h
index ad32b6b3f4df68fa8e0f8a704cc49101a8954a62..23b33002e42f14bce86a5036c7245e2f69c5725b 100644 (file)
--- a/src/mesa/main/marshal.h
+++ b/src/mesa/main/marshal.h
@@ -109,4 +109,79 @@ _mesa_post_marshal_hook(struct gl_context *ctx)
       _mesa_glthread_finish(ctx);
 }
 
+
+/**
+ * Checks whether we're on a compat context for code-generated
+ * glBindVertexArray().
+ *
+ * In order to decide whether a draw call uses only VBOs for vertex and index
+ * buffers, we track the current vertex and index buffer bindings by
+ * glBindBuffer().  However, the index buffer binding is stored in the vertex
+ * array as opposed to the context.  If we were to accurately track whether
+ * the index buffer was a user pointer ot not, we'd have to track it per
+ * vertex array, which would mean synchronizing with the client thread and
+ * looking into the hash table to find the actual vertex array object.  That's
+ * more tracking than we'd like to do in the main thread, if possible.
+ *
+ * Instead, just punt for now and disable threading on apps using vertex
+ * arrays and compat contexts.  Apps using vertex arrays can probably use a
+ * core context.
+ */
+static inline bool
+_mesa_glthread_is_compat_bind_vertex_array(const struct gl_context *ctx)
+{
+   return ctx->API != API_OPENGL_CORE;
+}
+
+/**
+ * Instead of conditionally handling marshaling previously-bound user vertex
+ * array data in draw calls (deprecated and removed in GL core), we just
+ * disable threading at the point where the user sets a user vertex array.
+ */
+static inline bool
+_mesa_glthread_is_non_vbo_vertex_attrib_pointer(const struct gl_context *ctx)
+{
+   struct glthread_state *glthread = ctx->GLThread;
+
+   return ctx->API != API_OPENGL_CORE && !glthread->vertex_array_is_vbo;
+}
+
+/**
+ * Instead of conditionally handling marshaling immediate index data in draw
+ * calls (deprecated and removed in GL core), we just disable threading.
+ */
+static inline bool
+_mesa_glthread_is_non_vbo_draw_elements(const struct gl_context *ctx)
+{
+   struct glthread_state *glthread = ctx->GLThread;
+
+   return ctx->API != API_OPENGL_CORE && !glthread->element_array_is_vbo;
+}
+
+struct marshal_cmd_ShaderSource;
+struct marshal_cmd_Flush;
+struct marshal_cmd_BindBuffer;
+
+void GLAPIENTRY
+_mesa_marshal_ShaderSource(GLuint shader, GLsizei count,
+                           const GLchar * const *string, const GLint *length);
+
+void
+_mesa_unmarshal_ShaderSource(struct gl_context *ctx,
+                             const struct marshal_cmd_ShaderSource *cmd);
+
+void GLAPIENTRY
+_mesa_marshal_Flush(void);
+
+void
+_mesa_unmarshal_Flush(struct gl_context *ctx,
+                      const struct marshal_cmd_Flush *cmd);
+
+void GLAPIENTRY
+_mesa_marshal_BindBuffer(GLenum target, GLuint buffer);
+
+void
+_mesa_unmarshal_BindBuffer(struct gl_context *ctx,
+                           const struct marshal_cmd_BindBuffer *cmd);
+
 #endif /* MARSHAL_H */