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| author | Niklas Haas <git@haasn.xyz> | 2017-09-08 06:13:55 +0200 |
|---|---|---|
| committer | Niklas Haas <git@haasn.xyz> | 2017-09-26 17:25:35 +0200 |
| commit | ca85a153b4a201c7f6d600f861639ef68c1edfa3 (patch) | |
| tree | 328594163e35181d10396e651c78f393cff38530 /video/out/vulkan | |
| parent | ed345ffc2f3373743d74a5e0a1dc73c012389273 (diff) | |
| download | mpv-ca85a153b4a201c7f6d600f861639ef68c1edfa3.tar.bz2 mpv-ca85a153b4a201c7f6d600f861639ef68c1edfa3.tar.xz | |
vo_gpu: vulkan: add support for push constants
Can in theory avoid updating the uniform buffer every frame
Diffstat (limited to 'video/out/vulkan')
| -rw-r--r-- | video/out/vulkan/ra_vk.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/video/out/vulkan/ra_vk.c b/video/out/vulkan/ra_vk.c index 897b2e1ff1..76e242601c 100644 --- a/video/out/vulkan/ra_vk.c +++ b/video/out/vulkan/ra_vk.c @@ -191,6 +191,7 @@ struct ra *ra_create_vk(struct mpvk_ctx *vk, struct mp_log *log) ra->glsl_version = vk->spirv->glsl_version; ra->glsl_vulkan = true; ra->max_shmem = vk->limits.maxComputeSharedMemorySize; + ra->max_pushc_size = vk->limits.maxPushConstantsSize; if (vk->pool->props.queueFlags & VK_QUEUE_COMPUTE_BIT) ra->caps |= RA_CAP_COMPUTE; @@ -1079,6 +1080,12 @@ static struct ra_renderpass *vk_renderpass_create(struct ra *ra, .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO, .setLayoutCount = 1, .pSetLayouts = &pass_vk->dsLayout, + .pushConstantRangeCount = params->push_constants_size ? 1 : 0, + .pPushConstantRanges = &(VkPushConstantRange){ + .stageFlags = stageFlags[params->type], + .offset = 0, + .size = params->push_constants_size, + }, }; VK(vkCreatePipelineLayout(vk->dev, &linfo, MPVK_ALLOCATOR, @@ -1416,6 +1423,13 @@ static void vk_renderpass_run(struct ra *ra, vkCmdBindDescriptorSets(cmd->buf, bindPoint[pass->params.type], pass_vk->pipeLayout, 0, 1, &ds, 0, NULL); + if (pass->params.push_constants_size) { + vkCmdPushConstants(cmd->buf, pass_vk->pipeLayout, + stageFlags[pass->params.type], 0, + pass->params.push_constants_size, + params->push_constants); + } + switch (pass->params.type) { case RA_RENDERPASS_TYPE_COMPUTE: vkCmdDispatch(cmd->buf, params->compute_groups[0], @@ -1664,6 +1678,7 @@ static struct ra_fns ra_fns_vk = { .clear = vk_clear, .blit = vk_blit, .uniform_layout = std140_layout, + .push_constant_layout = std430_layout, .renderpass_create = vk_renderpass_create, .renderpass_destroy = vk_renderpass_destroy_lazy, .renderpass_run = vk_renderpass_run, |