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radv: allow to create a noop FS in a library with GPL

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Otherwise, a noop FS will be always compiled during linking if not
provided by the application and that is too slow for fast-linking.

This should be improved to use a global noop FS but it's really tricky
because NIR linking doesn't do anything when the next stage is unknown,
and hence doesn't remove unused varyings.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21042>
This commit is contained in:
Samuel Pitoiset
2023-02-01 14:56:22 +01:00
committed by Marge Bot
parent 68e914a4ca
commit c9e032be7f
1 changed files with 17 additions and 4 deletions
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21
src/amd/vulkan/radv_pipeline.c
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@@ -3481,9 +3481,11 @@ radv_graphics_pipeline_compile(struct radv_graphics_pipeline *pipeline,
if (pCreateInfo->flags & VK_PIPELINE_CREATE_FAIL_ON_PIPELINE_COMPILE_REQUIRED_BIT)
return VK_PIPELINE_COMPILE_REQUIRED;
if (pipeline->base.type == RADV_PIPELINE_GRAPHICS &&
!(radv_pipeline_to_graphics(&pipeline->base)->active_stages &
VK_SHADER_STAGE_FRAGMENT_BIT)) {
if ((pipeline->base.type == RADV_PIPELINE_GRAPHICS &&
!(radv_pipeline_to_graphics(&pipeline->base)->active_stages & VK_SHADER_STAGE_FRAGMENT_BIT)) ||
(pipeline->base.type == RADV_PIPELINE_GRAPHICS_LIB &&
(lib_flags & VK_GRAPHICS_PIPELINE_LIBRARY_FRAGMENT_SHADER_BIT_EXT) &&
!(radv_pipeline_to_graphics_lib(&pipeline->base)->base.active_stages & VK_SHADER_STAGE_FRAGMENT_BIT))) {
nir_builder fs_b = radv_meta_init_shader(device, MESA_SHADER_FRAGMENT, "noop_fs");
stages[MESA_SHADER_FRAGMENT] = (struct radv_pipeline_stage) {
@@ -5165,7 +5167,11 @@ radv_graphics_lib_pipeline_init(struct radv_graphics_lib_pipeline *pipeline,
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
if (pipeline->base.active_stages != 0) {
if (pipeline->base.active_stages != 0 ||
(imported_flags & VK_GRAPHICS_PIPELINE_LIBRARY_FRAGMENT_SHADER_BIT_EXT)) {
const VkPipelineCreationFeedbackCreateInfo *creation_feedback =
vk_find_struct_const(pCreateInfo->pNext, PIPELINE_CREATION_FEEDBACK_CREATE_INFO);
struct radv_pipeline_key key =
radv_generate_graphics_pipeline_key(&pipeline->base, pCreateInfo, state);
@@ -5186,6 +5192,13 @@ radv_graphics_lib_pipeline_init(struct radv_graphics_lib_pipeline *pipeline,
&pipeline->base.last_vgt_api_stage);
if (result != VK_SUCCESS)
return result;
/* Force add the fragment shader stage when a noop FS has been compiled. */
if ((imported_flags & VK_GRAPHICS_PIPELINE_LIBRARY_FRAGMENT_SHADER_BIT_EXT) &&
!(pipeline->base.active_stages & VK_SHADER_STAGE_FRAGMENT_BIT)) {
assert(pipeline->base.base.shaders[MESA_SHADER_FRAGMENT]);
pipeline->base.active_stages |= VK_SHADER_STAGE_FRAGMENT_BIT;
}
}
return VK_SUCCESS;