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texture_cache: Implement depth stencil texture swizzles

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Stop ignoring image swizzles on depth and stencil images.

This doesn't fix a known issue on Xenoblade Chronicles 2 where an OpenGL
texture changes swizzles twice before being used. A proper fix would be
having a small texture view cache for this like we do on Vulkan.
This commit is contained in:
ReinUsesLisp 2020-05-24 17:57:54 -03:00
parent 86345c126a
commit 8bba84a401
3 changed files with 42 additions and 36 deletions
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29
src/video_core/renderer_vulkan/vk_texture_cache.cpp
View file

@ -354,26 +354,23 @@ CachedSurfaceView::~CachedSurfaceView() = default;
VkImageView CachedSurfaceView::GetHandle(SwizzleSource x_source, SwizzleSource y_source,
SwizzleSource z_source, SwizzleSource w_source) {
const u32 swizzle = EncodeSwizzle(x_source, y_source, z_source, w_source);
if (last_image_view && last_swizzle == swizzle) {
const u32 new_swizzle = EncodeSwizzle(x_source, y_source, z_source, w_source);
if (last_image_view && last_swizzle == new_swizzle) {
return last_image_view;
}
last_swizzle = swizzle;
last_swizzle = new_swizzle;
const auto [entry, is_cache_miss] = view_cache.try_emplace(swizzle);
const auto [entry, is_cache_miss] = view_cache.try_emplace(new_swizzle);
auto& image_view = entry->second;
if (!is_cache_miss) {
return last_image_view = *image_view;
}
auto swizzle_x = MaxwellToVK::SwizzleSource(x_source);
auto swizzle_y = MaxwellToVK::SwizzleSource(y_source);
auto swizzle_z = MaxwellToVK::SwizzleSource(z_source);
auto swizzle_w = MaxwellToVK::SwizzleSource(w_source);
std::array swizzle{MaxwellToVK::SwizzleSource(x_source), MaxwellToVK::SwizzleSource(y_source),
MaxwellToVK::SwizzleSource(z_source), MaxwellToVK::SwizzleSource(w_source)};
if (params.pixel_format == VideoCore::Surface::PixelFormat::A1B5G5R5U) {
// A1B5G5R5 is implemented as A1R5G5B5, we have to change the swizzle here.
std::swap(swizzle_x, swizzle_z);
std::swap(swizzle[0], swizzle[2]);
}
// Games can sample depth or stencil values on textures. This is decided by the swizzle value on
@ -395,11 +392,11 @@ VkImageView CachedSurfaceView::GetHandle(SwizzleSource x_source, SwizzleSource y
UNIMPLEMENTED();
}
// Vulkan doesn't seem to understand swizzling of a depth stencil image, use identity
swizzle_x = VK_COMPONENT_SWIZZLE_R;
swizzle_y = VK_COMPONENT_SWIZZLE_G;
swizzle_z = VK_COMPONENT_SWIZZLE_B;
swizzle_w = VK_COMPONENT_SWIZZLE_A;
// Make sure we sample the first component
std::transform(
swizzle.begin(), swizzle.end(), swizzle.begin(), [](VkComponentSwizzle component) {
return component == VK_COMPONENT_SWIZZLE_G ? VK_COMPONENT_SWIZZLE_R : component;
});
}
VkImageViewCreateInfo ci;
@ -409,7 +406,7 @@ VkImageView CachedSurfaceView::GetHandle(SwizzleSource x_source, SwizzleSource y
ci.image = surface.GetImageHandle();
ci.viewType = image_view_type;
ci.format = surface.GetImage().GetFormat();
ci.components = {swizzle_x, swizzle_y, swizzle_z, swizzle_w};
ci.components = {swizzle[0], swizzle[1], swizzle[2], swizzle[3]};
ci.subresourceRange.aspectMask = aspect;
ci.subresourceRange.baseMipLevel = base_level;
ci.subresourceRange.levelCount = num_levels;