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render/vulkan: add support for RGB565 texture format

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Since this does not have a matching _SRGB-type vulkan format, add a
new shader variant/pipeline to perform the sRGB->linear texture
conversion.
This commit is contained in:
Manuel Stoeckl 2022-11-11 22:53:06 -05:00 • committed by Simon Ser
parent 060df4c6c0
commit 3ed69b4946
4 changed files with 78 additions and 8 deletions
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11
include/render/vulkan.h
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@ -78,6 +78,7 @@ int vulkan_find_mem_type(struct wlr_vk_device *device,
struct wlr_vk_format {
uint32_t drm_format;
VkFormat vk_format;
bool is_srgb;
};
// Returns all known format mappings.
@ -110,6 +111,13 @@ struct wlr_vk_format_modifier_props *vulkan_format_props_find_modifier(
struct wlr_vk_format_props *props, uint64_t mod, bool render);
void vulkan_format_props_finish(struct wlr_vk_format_props *props);
// Constants used to pick the color transform for the texture drawing
// fragment shader. Must match those in shaders/texture.frag
enum wlr_vk_texture_transform {
WLR_VK_TEXTURE_TRANSFORM_IDENTITY = 0,
WLR_VK_TEXTURE_TRANSFORM_SRGB = 1,
};
// For each format we want to render, we need a separate renderpass
// and therefore also separate pipelines.
struct wlr_vk_render_format_setup {
@ -117,7 +125,8 @@ struct wlr_vk_render_format_setup {
VkFormat render_format; // used in renderpass
VkRenderPass render_pass;
VkPipeline tex_pipe;
VkPipeline tex_identity_pipe;
VkPipeline tex_srgb_pipe;
VkPipeline quad_pipe;
};