+/* Helper function for ARB_framebuffer_no_attachments functions interacting with EXT_direct_state_access */
+static struct gl_framebuffer *
+lookup_named_framebuffer_ext_dsa(struct gl_context *ctx, GLuint framebuffer, const char* caller)
+{
+ struct gl_framebuffer *fb = NULL;
+
+ if (framebuffer) {
+ /* The ARB_framebuffer_no_attachments spec says:
+ *
+ * "The error INVALID_VALUE is generated if <framebuffer> is not
+ * a name returned by GenFramebuffers. If a framebuffer object
+ * named <framebuffer> does not yet exist, it will be created."
+ *
+ * This is different from the EXT_direct_state_access spec which says:
+ *
+ * "If the framebuffer object named by the framebuffer parameter has not
+ * been previously bound or has been deleted since the last binding,
+ * the GL first creates a new state vector in the same manner as when
+ * BindFramebuffer creates a new framebuffer object"
+ *
+ * So first we verify that the name exists.
+ */
+ fb = _mesa_lookup_framebuffer(ctx, framebuffer);
+ if (!fb) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(frameBuffer)", caller);
+ return NULL;
+ }
+ /* Then, make sure it's initialized */
+ if (fb == &DummyFramebuffer) {
+ fb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
+ _mesa_HashLockMutex(ctx->Shared->FrameBuffers);
+ _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, fb);
+ _mesa_HashUnlockMutex(ctx->Shared->BufferObjects);
+ }
+ }
+ else
+ fb = ctx->WinSysDrawBuffer;
+
+ return fb;
+}
+
+
+void GLAPIENTRY
+_mesa_NamedFramebufferParameteriEXT(GLuint framebuffer, GLenum pname,
+ GLint param)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_framebuffer *fb =
+ lookup_named_framebuffer_ext_dsa(ctx, framebuffer,
+ "glNamedFramebufferParameteriEXT");
+
+ if (!fb)
+ return;
+
+ framebuffer_parameteri(ctx, fb, pname, param,
+ "glNamedFramebufferParameteriEXT");
+}
+
+
projects / mesa.git / commitdiff