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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <unordered_map>
#include "video_core/renderer_vulkan/maxwell_to_vk.h"
#include "video_core/renderer_vulkan/vk_sampler_cache.h"
#include "video_core/renderer_vulkan/wrapper.h"
#include "video_core/textures/texture.h"
using Tegra::Texture::TextureMipmapFilter;
namespace Vulkan {
namespace {
VkBorderColor ConvertBorderColor(std::array<float, 4> color) {
// TODO(Rodrigo): Manage integer border colors
if (color == std::array<float, 4>{0, 0, 0, 0}) {
return VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
} else if (color == std::array<float, 4>{0, 0, 0, 1}) {
return VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK;
} else if (color == std::array<float, 4>{1, 1, 1, 1}) {
return VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
}
if (color[0] + color[1] + color[2] > 1.35f) {
// If color elements are brighter than roughly 0.5 average, use white border
return VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
} else if (color[3] > 0.5f) {
return VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK;
} else {
return VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
}
}
} // Anonymous namespace
VKSamplerCache::VKSamplerCache(const VKDevice& device) : device{device} {}
VKSamplerCache::~VKSamplerCache() = default;
vk::Sampler VKSamplerCache::CreateSampler(const Tegra::Texture::TSCEntry& tsc) const {
const bool arbitrary_borders = device.IsExtCustomBorderColorSupported();
const std::array color = tsc.GetBorderColor();
VkSamplerCustomBorderColorCreateInfoEXT border{
.sType = VK_STRUCTURE_TYPE_SAMPLER_CUSTOM_BORDER_COLOR_CREATE_INFO_EXT,
.pNext = nullptr,
.format = VK_FORMAT_UNDEFINED,
};
std::memcpy(&border.customBorderColor, color.data(), sizeof(color));
return device.GetLogical().CreateSampler({
.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
.pNext = arbitrary_borders ? &border : nullptr,
.flags = 0,
.magFilter = MaxwellToVK::Sampler::Filter(tsc.mag_filter),
.minFilter = MaxwellToVK::Sampler::Filter(tsc.min_filter),
.mipmapMode = MaxwellToVK::Sampler::MipmapMode(tsc.mipmap_filter),
.addressModeU = MaxwellToVK::Sampler::WrapMode(device, tsc.wrap_u, tsc.mag_filter),
.addressModeV = MaxwellToVK::Sampler::WrapMode(device, tsc.wrap_v, tsc.mag_filter),
.addressModeW = MaxwellToVK::Sampler::WrapMode(device, tsc.wrap_p, tsc.mag_filter),
.mipLodBias = tsc.GetLodBias(),
.anisotropyEnable =
static_cast<VkBool32>(tsc.GetMaxAnisotropy() > 1.0f ? VK_TRUE : VK_FALSE),
.maxAnisotropy = tsc.GetMaxAnisotropy(),
.compareEnable = tsc.depth_compare_enabled,
.compareOp = MaxwellToVK::Sampler::DepthCompareFunction(tsc.depth_compare_func),
.minLod = tsc.mipmap_filter == TextureMipmapFilter::None ? 0.0f : tsc.GetMinLod(),
.maxLod = tsc.mipmap_filter == TextureMipmapFilter::None ? 0.25f : tsc.GetMaxLod(),
.borderColor =
arbitrary_borders ? VK_BORDER_COLOR_INT_CUSTOM_EXT : ConvertBorderColor(color),
.unnormalizedCoordinates = VK_FALSE,
});
}
VkSampler VKSamplerCache::ToSamplerType(const vk::Sampler& sampler) const {
return *sampler;
}
} // namespace Vulkan
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