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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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14
render/vulkan/pixel_format.c
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@ -10,19 +10,29 @@ static const struct wlr_vk_format formats[] = {
{
.drm_format = DRM_FORMAT_ARGB8888,
.vk_format = VK_FORMAT_B8G8R8A8_SRGB,
.is_srgb = true,
},
{
.drm_format = DRM_FORMAT_XRGB8888,
.vk_format = VK_FORMAT_B8G8R8A8_SRGB,
.is_srgb = true,
},
{
.drm_format = DRM_FORMAT_XBGR8888,
.vk_format = VK_FORMAT_R8G8B8A8_SRGB,
.is_srgb = true,
},
{
.drm_format = DRM_FORMAT_ABGR8888,
.vk_format = VK_FORMAT_R8G8B8A8_SRGB,
.is_srgb = true,
},
#if WLR_LITTLE_ENDIAN
{
.drm_format = DRM_FORMAT_RGB565,
.vk_format = VK_FORMAT_R5G6B5_UNORM_PACK16,
},
#endif
};
const struct wlr_vk_format *vulkan_get_format_list(size_t *len) {
@ -139,7 +149,9 @@ static bool query_modifier_support(struct wlr_vk_device *dev,
const char *render_status, *texture_status;
// check that specific modifier for render usage
if ((m.drmFormatModifierTilingFeatures & render_features) == render_features) {
// also, only allow rendering to formats with SRGB encoding
if ((m.drmFormatModifierTilingFeatures & render_features) == render_features &&
props->format.is_srgb) {
fmti.usage = render_usage;
modi.drmFormatModifier = m.drmFormatModifier;