From e73bf3b805de78299f1a652668ba4e6eab9bac94 Mon Sep 17 00:00:00 2001 From: Marek Olšák Date: Thu, 29 Mar 2012 17:51:50 +0200 Subject: gallium: add start_slot parameter to set_vertex_buffers This allows updating only a subrange of buffer bindings. set_vertex_buffers(pipe, start_slot, count, NULL) unbinds buffers in that range. Binding NULL resources unbinds buffers too (both buffer and user_buffer must be NULL). The meta ops are adapted to only save, change, and restore the single slot they use. The cso_context can save and restore only one vertex buffer slot. The clients can query which one it is using cso_get_aux_vertex_buffer_slot. It's currently set to 0. (the Draw module breaks if it's set to non-zero) It should decrease the CPU overhead when using a lot of meta ops, but the drivers must be able to treat each vertex buffer slot as a separate state (only r600g does so at the moment). I can imagine this also being useful for optimizing some OpenGL use cases. Reviewed-by: Brian Paul --- src/gallium/drivers/radeonsi/si_state.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'src/gallium/drivers/radeonsi/si_state.c') diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 66f0bd886fe..bd44d732935 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -27,6 +27,7 @@ #include "util/u_memory.h" #include "util/u_framebuffer.h" #include "util/u_blitter.h" +#include "util/u_helpers.h" #include "util/u_math.h" #include "util/u_pack_color.h" #include "tgsi/tgsi_parse.h" @@ -2488,12 +2489,12 @@ static void si_delete_vertex_element(struct pipe_context *ctx, void *state) FREE(state); } -static void si_set_vertex_buffers(struct pipe_context *ctx, unsigned count, +static void si_set_vertex_buffers(struct pipe_context *ctx, unsigned start_slot, unsigned count, const struct pipe_vertex_buffer *buffers) { struct r600_context *rctx = (struct r600_context *)ctx; - util_copy_vertex_buffers(rctx->vertex_buffer, &rctx->nr_vertex_buffers, buffers, count); + util_set_vertex_buffers_count(rctx->vertex_buffer, &rctx->nr_vertex_buffers, buffers, start_slot, count); } static void si_set_index_buffer(struct pipe_context *ctx, -- cgit v1.2.3