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render/vulkan: allow rendering to non-8-bit buffers

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This is implemented by a two-subpass rendering scheme; the first
subpass draws (and blends) onto a linear R16G16B16A16_SFLOAT buffer,
while the second subpass performs linear->srgb conversion, writing
onto the actual output buffer.
This commit is contained in:
Manuel Stoeckl 2022-11-19 21:47:27 -05:00 • committed by Simon Ser
parent 8cdc4b7a31
commit 10dd416694
5 changed files with 651 additions and 90 deletions
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21
include/render/vulkan.h
View file

@ -140,6 +140,7 @@ struct wlr_vk_render_format_setup {
VkPipeline tex_srgb_pipe;
VkPipeline tex_nv12_pipe;
VkPipeline quad_pipe;
VkPipeline output_pipe;
};
// Renderer-internal represenation of an wlr_buffer imported for rendering.
@ -156,6 +157,13 @@ struct wlr_vk_render_buffer {
uint32_t mem_count;
VkDeviceMemory memories[WLR_DMABUF_MAX_PLANES];
bool transitioned;
VkImage blend_image;
VkImageView blend_image_view;
VkDeviceMemory blend_memory;
VkDescriptorSet blend_descriptor_set;
struct wlr_vk_descriptor_pool *blend_attachment_pool;
bool blend_transitioned;
};
struct wlr_vk_command_buffer {
@ -184,11 +192,17 @@ struct wlr_vk_renderer {
VkShaderModule vert_module;
VkShaderModule tex_frag_module;
VkShaderModule quad_frag_module;
VkShaderModule output_module;
VkDescriptorSetLayout ds_layout, nv12_ds_layout;
VkPipelineLayout pipe_layout, nv12_pipe_layout;
VkSampler sampler, nv12_sampler;
VkSamplerYcbcrConversion nv12_conversion;
// for blend->output subpass
VkPipelineLayout output_pipe_layout;
VkDescriptorSetLayout output_ds_layout;
size_t last_output_pool_size;
struct wl_list output_descriptor_pools; // wlr_vk_descriptor_pool.link
VkSemaphore timeline_semaphore;
uint64_t timeline_point;
@ -208,6 +222,7 @@ struct wlr_vk_renderer {
struct wl_list descriptor_pools; // wlr_vk_descriptor_pool.link
struct wl_list render_format_setups; // wlr_vk_render_format_setup.link
struct wl_list textures; // wlr_vk_texture.link
// Textures to return to foreign queue
struct wl_list foreign_textures; // wlr_vk_texture.foreign_link
@ -258,6 +273,12 @@ struct wlr_vk_descriptor_pool *vulkan_alloc_texture_ds(
struct wlr_vk_renderer *renderer, VkDescriptorSetLayout ds_layout,
VkDescriptorSet *ds);
// Tries to allocate a descriptor set for the blending image. Will
// additionally return the pool it was allocated from when successful
// (for freeing it later).
struct wlr_vk_descriptor_pool *vulkan_alloc_blend_ds(
struct wlr_vk_renderer *renderer, VkDescriptorSet *ds);
// Frees the given descriptor set from the pool its pool.
void vulkan_free_ds(struct wlr_vk_renderer *renderer,
struct wlr_vk_descriptor_pool *pool, VkDescriptorSet ds);