r600g: various fixes

- enabled flushing a buffer more than once
- enabled the blitter for r600_clear
- added some more colors to r600_is_format_supported (copied from r600_conv_pipe_format)
- r600_set_framebuffer_state now sets rctx->fb_state
- more states are saved before a blit (had to add some accounting for the viewport and the vertex elements state)
- fixed a few errors with reference counting

src/gallium/drivers/r600/r600_blit.c

@@ -47,6 +47,10 @@ static void r600_blitter_save_states(struct pipe_context *ctx)
 					rctx->ps_shader);
 	util_blitter_save_vertex_shader(rctx->blitter,
 					rctx->vs_shader);
+	util_blitter_save_vertex_elements(rctx->blitter,
+					rctx->vertex_elements);
+	util_blitter_save_viewport(rctx->blitter,
+					rctx->viewport);
 }
 
 void r600_clear(struct pipe_context *ctx, unsigned buffers,
@@ -55,12 +59,10 @@ void r600_clear(struct pipe_context *ctx, unsigned buffers,
 	struct r600_context *rctx = (struct r600_context*)ctx;
 	struct pipe_framebuffer_state *fb = &rctx->fb_state;
 
-#if 0
 	r600_blitter_save_states(ctx);
 	util_blitter_clear(rctx->blitter, fb->width, fb->height,
 				fb->nr_cbufs, buffers, rgba, depth,
 				stencil);
-#endif
 }
 
 void r600_surface_copy(struct pipe_context *ctx,

src/gallium/drivers/r600/r600_buffer.c

@@ -73,8 +73,8 @@ struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
 	if (rbuffer == NULL)
 		return NULL;
 
-	pipe_reference_init(&rbuffer->b.b.reference, 1);
 	rbuffer->b.b = *templ;
+	pipe_reference_init(&rbuffer->b.b.reference, 1);
 	rbuffer->b.b.screen = screen;
 	rbuffer->b.vtbl = &r600_buffer_vtbl;
 

src/gallium/drivers/r600/r600_context.c

@@ -50,9 +50,8 @@ static int dc = 0;
 
 	if (radeon_ctx_pm4(rctx->ctx))
 		return;
-	if (dc)
-		return;
-	radeon_ctx_dump_bof(rctx->ctx, "gallium.bof");
+	if (!dc)
+	    radeon_ctx_dump_bof(rctx->ctx, "gallium.bof");
 	radeon_ctx_submit(rctx->ctx);
 	rctx->ctx = radeon_ctx_decref(rctx->ctx);
 	rctx->ctx = radeon_ctx(rscreen->rw);
@@ -78,13 +77,12 @@ struct pipe_context *r600_create_context(struct pipe_screen *screen, void *priv)
 	r600_init_query_functions(rctx);
 	r600_init_state_functions(rctx);
 	r600_init_context_resource_functions(rctx);
-#if 0
+
 	rctx->blitter = util_blitter_create(&rctx->context);
 	if (rctx->blitter == NULL) {
 		FREE(rctx);
 		return NULL;
 	}
-#endif
 
 	rctx->cb_cntl = radeon_state(rscreen->rw, R600_CB_CNTL_TYPE, R600_CB_CNTL);
 	rctx->cb_cntl->states[R600_CB_CNTL__CB_SHADER_MASK] = 0x0000000F;

src/gallium/drivers/r600/r600_context.h

@@ -35,6 +35,13 @@
 struct r600_state;
 typedef void (*r600_state_destroy_t)(struct r600_state *rstate);
 
+/* XXX move this to a more appropriate place */
+struct r600_vertex_elements_state
+{
+	unsigned count;
+	struct pipe_vertex_element elements[32];
+};
+
 struct r600_state {
 	unsigned		type;
 	struct r600_atom	*atom;
@@ -63,13 +70,13 @@ struct r600_context {
 	struct r600_pipe_shader		*vs_shader;
 	unsigned			flat_shade;
 	unsigned			nvertex_buffer;
-	unsigned			nvertex_element;
+	struct r600_vertex_elements_state *vertex_elements;
 	struct pipe_vertex_buffer	vertex_buffer[PIPE_MAX_ATTRIBS];
-	struct pipe_vertex_element	vertex_element[PIPE_MAX_ATTRIBS];
 	struct blitter_context		*blitter;
 	struct pipe_stencil_ref		stencil_ref;
 	struct pipe_framebuffer_state	fb_state;
 	struct radeon_draw		*draw;
+	struct pipe_viewport_state *viewport;
 };
 
 void r600_draw_arrays(struct pipe_context *ctx, unsigned mode,

src/gallium/drivers/r600/r600_draw.c

@@ -99,11 +99,11 @@ static int r600_draw_common(struct r600_draw *draw)
 	if (r)
 		return r;
 
-	for (i = 0 ; i < rctx->nvertex_element; i++) {
-		j = rctx->vertex_element[i].vertex_buffer_index;
+	for (i = 0 ; i < rctx->vertex_elements->count; i++) {
+		j = rctx->vertex_elements->elements[i].vertex_buffer_index;
 		rbuffer = (struct r600_buffer*)rctx->vertex_buffer[j].buffer;
-		offset = rctx->vertex_element[i].src_offset + rctx->vertex_buffer[j].buffer_offset;
-		r = r600_conv_pipe_format(rctx->vertex_element[i].src_format, &format);
+		offset = rctx->vertex_elements->elements[i].src_offset + rctx->vertex_buffer[j].buffer_offset;
+		r = r600_conv_pipe_format(rctx->vertex_elements->elements[i].src_format, &format);
 		if (r)
 			return r;
 		vs_resource = radeon_state(rscreen->rw, R600_VS_RESOURCE_TYPE, R600_VS_RESOURCE + i);

src/gallium/drivers/r600/r600_shader.c

@@ -200,8 +200,8 @@ int r600_pipe_shader_update(struct pipe_context *ctx, struct r600_pipe_shader *r
 	rshader = &rpshader->shader;
 	switch (rpshader->type) {
 	case C_PROGRAM_TYPE_VS:
-		for (i = 0; i < rctx->nvertex_element; i++) {
-			resource_format[nresources++] = rctx->vertex_element[i].src_format;
+		for (i = 0; i < rctx->vertex_elements->count; i++) {
+			resource_format[nresources++] = rctx->vertex_elements->elements[i].src_format;
 		}
 		break;
 	default:

src/gallium/drivers/r600/r600_state.c

@@ -128,6 +128,7 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx,
 	rctx->db->bo[0] = radeon_bo_incref(rscreen->rw, rstate->bo[0]);
 	rctx->db->nbo = 1;
 	rctx->db->placement[0] = RADEON_GEM_DOMAIN_GTT;
+	rctx->fb_state = *state;
 }
 
 static void *r600_create_fs_state(struct pipe_context *ctx,
@@ -308,6 +309,7 @@ static void r600_set_viewport_state(struct pipe_context *ctx,
 		return;
 	}
 	radeon_draw_set_new(rctx->draw, rstate);
+	rctx->viewport = state;
 }
 
 static void r600_set_vertex_buffers(struct pipe_context *ctx,
@@ -320,12 +322,6 @@ static void r600_set_vertex_buffers(struct pipe_context *ctx,
 	rctx->nvertex_buffer = count;
 }
 
-/* XXX move this to a more appropriate place */
-struct r600_vertex_elements_state
-{
-	unsigned count;
-	struct pipe_vertex_element elements[32];
-};
 
 static void *r600_create_vertex_elements_state(struct pipe_context *ctx,
 					       unsigned count,
@@ -344,8 +340,7 @@ static void r600_bind_vertex_elements_state(struct pipe_context *ctx, void *stat
 	struct r600_context *rctx = (struct r600_context*)ctx;
 	struct r600_vertex_elements_state *v = (struct r600_vertex_elements_state*)state;
 
-	memcpy(rctx->vertex_element, v->elements, v->count * sizeof(struct pipe_vertex_element));
-	rctx->nvertex_element = v->count;
+	rctx->vertex_elements = v;
 }
 
 static void r600_delete_vertex_elements_state(struct pipe_context *ctx, void *state)

src/gallium/drivers/r600/r600_texture.c

@@ -113,7 +113,6 @@ static void r600_texture_destroy(struct pipe_screen *screen,
 {
 	struct r600_texture *rtex = (struct r600_texture*)ptex;
 
-	pipe_resource_reference((struct pipe_resource**)&rtex, NULL);
 	FREE(rtex);
 }