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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstring>
#include <optional>
#include <unordered_map>
#include "common/assert.h"
#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"
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 {
VkSamplerCreateInfo ci;
ci.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
ci.pNext = nullptr;
ci.flags = 0;
ci.magFilter = MaxwellToVK::Sampler::Filter(tsc.mag_filter);
ci.minFilter = MaxwellToVK::Sampler::Filter(tsc.min_filter);
ci.mipmapMode = MaxwellToVK::Sampler::MipmapMode(tsc.mipmap_filter);
ci.addressModeU = MaxwellToVK::Sampler::WrapMode(device, tsc.wrap_u, tsc.mag_filter);
ci.addressModeV = MaxwellToVK::Sampler::WrapMode(device, tsc.wrap_v, tsc.mag_filter);
ci.addressModeW = MaxwellToVK::Sampler::WrapMode(device, tsc.wrap_p, tsc.mag_filter);
ci.mipLodBias = tsc.GetLodBias();
ci.anisotropyEnable = tsc.GetMaxAnisotropy() > 1.0f ? VK_TRUE : VK_FALSE;
ci.maxAnisotropy = tsc.GetMaxAnisotropy();
ci.compareEnable = tsc.depth_compare_enabled;
ci.compareOp = MaxwellToVK::Sampler::DepthCompareFunction(tsc.depth_compare_func);
ci.minLod = tsc.GetMinLod();
ci.maxLod = tsc.GetMaxLod();
ci.borderColor = ConvertBorderColor(tsc.GetBorderColor());
ci.unnormalizedCoordinates = VK_FALSE;
return device.GetLogical().CreateSampler(ci);
}
VkSampler VKSamplerCache::ToSamplerType(const vk::Sampler& sampler) const {
return *sampler;
}
} // namespace Vulkan
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