From ed53e61bec9e926b60ede093d4dd2bac56a4c605 Mon Sep 17 00:00:00 2001 From: Erik Faye-Lund Date: Mon, 6 May 2019 15:35:04 +0200 Subject: [PATCH] llvmpipe: pass stream-out targets to draw-module early We currently set this state in the draw-module twice on each draw, but which trashes this state. So far that's not a problem, because we don't really do much from that function. But it turns out, we're going to have to do more; namely flush when the state changes. This will incur a large performance penalty due to the excessive setting. Instead, let's rely on the CSO caching making sure that llvmpipe_set_so_targets doesn't get called needlessly, and setup the state directly there instead. Signed-off-by: Erik Faye-Lund Reviewed-by: Roland Scheidegger --- src/gallium/drivers/llvmpipe/lp_draw_arrays.c | 11 ----------- src/gallium/drivers/llvmpipe/lp_state_so.c | 8 ++++++++ 2 files changed, 8 insertions(+), 11 deletions(-) diff --git a/src/gallium/drivers/llvmpipe/lp_draw_arrays.c b/src/gallium/drivers/llvmpipe/lp_draw_arrays.c index 2efe3ef..3ce3d47 100644 --- a/src/gallium/drivers/llvmpipe/lp_draw_arrays.c +++ b/src/gallium/drivers/llvmpipe/lp_draw_arrays.c @@ -99,16 +99,6 @@ llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info) info->index_size, available_space); } - for (i = 0; i < lp->num_so_targets; i++) { - void *buf = 0; - if (lp->so_targets[i]) { - buf = llvmpipe_resource(lp->so_targets[i]->target.buffer)->data; - lp->so_targets[i]->mapping = buf; - } - } - draw_set_mapped_so_targets(draw, lp->num_so_targets, - lp->so_targets); - llvmpipe_prepare_vertex_sampling(lp, lp->num_sampler_views[PIPE_SHADER_VERTEX], lp->sampler_views[PIPE_SHADER_VERTEX]); @@ -137,7 +127,6 @@ llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info) if (mapped_indices) { draw_set_indexes(draw, NULL, 0, 0); } - draw_set_mapped_so_targets(draw, 0, NULL); if (lp->gs && lp->gs->no_tokens) { /* we have attached stream output to the vs for rendering, diff --git a/src/gallium/drivers/llvmpipe/lp_state_so.c b/src/gallium/drivers/llvmpipe/lp_state_so.c index b2afd6f..0fd38c1 100644 --- a/src/gallium/drivers/llvmpipe/lp_state_so.c +++ b/src/gallium/drivers/llvmpipe/lp_state_so.c @@ -85,12 +85,20 @@ llvmpipe_set_so_targets(struct pipe_context *pipe, if (!append && llvmpipe->so_targets[i]) { llvmpipe->so_targets[i]->internal_offset = offsets[i]; } + + if (targets[i]) { + void *buf = llvmpipe_resource(targets[i]->buffer)->data; + llvmpipe->so_targets[i]->mapping = buf; + } } for (; i < llvmpipe->num_so_targets; i++) { pipe_so_target_reference((struct pipe_stream_output_target **)&llvmpipe->so_targets[i], NULL); } llvmpipe->num_so_targets = num_targets; + + draw_set_mapped_so_targets(llvmpipe->draw, llvmpipe->num_so_targets, + llvmpipe->so_targets); } void -- 2.7.4