From bef610f693266c338b99511b4d1eea5d5b97644e Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Wed, 20 Jan 2010 18:26:49 +0100 Subject: gallium: prepare for per-rendertarget blend enables, writemasks, blend funcs GL 3.0 (EXT_draw_buffers2) and other APIs allow independent blend enables and write masks per render target, ARB_draw_buffers_blend (and other APIs) also allow independent blend functions. Things like dithering, logic ops however are not extended to be per rendertarget, that might be conceptually possible however it doesn't look like any API wants to expose this. --- src/gallium/auxiliary/cso_cache/cso_context.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'src/gallium/auxiliary/cso_cache') diff --git a/src/gallium/auxiliary/cso_cache/cso_context.c b/src/gallium/auxiliary/cso_cache/cso_context.c index fdfb5faa59e..c8fdfc81248 100644 --- a/src/gallium/auxiliary/cso_cache/cso_context.c +++ b/src/gallium/auxiliary/cso_cache/cso_context.c @@ -310,18 +310,21 @@ void cso_destroy_context( struct cso_context *ctx ) enum pipe_error cso_set_blend(struct cso_context *ctx, const struct pipe_blend_state *templ) { - unsigned hash_key = cso_construct_key((void*)templ, sizeof(struct pipe_blend_state)); - struct cso_hash_iter iter = cso_find_state_template(ctx->cache, - hash_key, CSO_BLEND, - (void*)templ); + unsigned key_size, hash_key; + struct cso_hash_iter iter; void *handle; + key_size = templ->independent_blend_enable ? sizeof(struct pipe_blend_state) : + (void *)&(templ->rt[1]) - (void *)templ; + hash_key = cso_construct_key((void*)templ, key_size); + iter = cso_find_state_template(ctx->cache, hash_key, CSO_BLEND, (void*)templ); + if (cso_hash_iter_is_null(iter)) { struct cso_blend *cso = MALLOC(sizeof(struct cso_blend)); if (!cso) return PIPE_ERROR_OUT_OF_MEMORY; - memcpy(&cso->state, templ, sizeof(*templ)); + memcpy(&cso->state, templ, key_size); cso->data = ctx->pipe->create_blend_state(ctx->pipe, &cso->state); cso->delete_state = (cso_state_callback)ctx->pipe->delete_blend_state; cso->context = ctx->pipe; -- cgit v1.2.3