diff options
| author | zccrs <zccrs@live.com> | 2022-11-09 17:57:56 +0800 |
|---|---|---|
| committer | zccrs <zccrs@live.com> | 2022-11-15 10:58:45 +0800 |
| commit | 5b34fe55136cca32c10e70e5fe44fea2d7c6520d (patch) | |
| tree | 747c6eba917645912cf11dfb541bfcb4cff3c1b4 /render/vulkan | |
| parent | 65836ce357e4140d4e5250228a05ddd96119a883 (diff) | |
render/vulkan: add wlr_vk_texture_has_alpha
Allow to get whether has alpha channel of the VkImage, it can help an
optimization to disable blending when the texture doesn't have alpha.
Because the VkFormat isn't enough because it's always set to
VK_FORMAT_B8G8R8A8_SRGB or VK_FORMAT_R8G8B8A8_SRGB.
Diffstat (limited to 'render/vulkan')
| -rw-r--r-- | render/vulkan/texture.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/render/vulkan/texture.c b/render/vulkan/texture.c index 1f70bc44..6c6e9825 100644 --- a/render/vulkan/texture.c +++ b/render/vulkan/texture.c @@ -322,6 +322,7 @@ static struct wlr_texture *vulkan_texture_from_pixels( const struct wlr_pixel_format_info *format_info = drm_get_pixel_format_info(drm_fmt); assert(format_info); + texture->has_alpha = format_info->has_alpha; // view VkImageViewCreateInfo view_info = { @@ -331,7 +332,7 @@ static struct wlr_texture *vulkan_texture_from_pixels( .components.r = VK_COMPONENT_SWIZZLE_IDENTITY, .components.g = VK_COMPONENT_SWIZZLE_IDENTITY, .components.b = VK_COMPONENT_SWIZZLE_IDENTITY, - .components.a = format_info->has_alpha + .components.a = texture->has_alpha ? VK_COMPONENT_SWIZZLE_IDENTITY : VK_COMPONENT_SWIZZLE_ONE, @@ -656,6 +657,7 @@ static struct wlr_vk_texture *vulkan_texture_from_dmabuf( const struct wlr_pixel_format_info *format_info = drm_get_pixel_format_info(attribs->format); assert(format_info); + texture->has_alpha = format_info->has_alpha; // view VkImageViewCreateInfo view_info = { @@ -665,7 +667,7 @@ static struct wlr_vk_texture *vulkan_texture_from_dmabuf( .components.r = VK_COMPONENT_SWIZZLE_IDENTITY, .components.g = VK_COMPONENT_SWIZZLE_IDENTITY, .components.b = VK_COMPONENT_SWIZZLE_IDENTITY, - .components.a = format_info->has_alpha + .components.a = texture->has_alpha ? VK_COMPONENT_SWIZZLE_IDENTITY : VK_COMPONENT_SWIZZLE_ONE, @@ -779,3 +781,8 @@ void wlr_vk_texture_get_image_attribs(struct wlr_texture *texture, attribs->layout = vk_texture->transitioned ? VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL : VK_IMAGE_LAYOUT_UNDEFINED; } + +bool wlr_vk_texture_has_alpha(struct wlr_texture *texture) { + struct wlr_vk_texture *vk_texture = vulkan_get_texture(texture); + return vk_texture->has_alpha; +} |