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#include "graphics/host_gpu/renderer/samplerCache.h"
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#include "common/assert.h"
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#include "common/logging/log.h"
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#include "graphics/guest_gpu/gpu_defs.h"
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#include "graphics/host_gpu/renderer/renderContext.h"
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namespace Libs::Graphics {
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VkSampler SamplerCache::GetSampler(const ShaderSamplerResource& r) {
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Common::LockGuard lock(m_mutex);
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const SamplerKey key {r.fields[0], r.fields[1], r.fields[2], r.fields[3]};
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if (auto iter = m_samplers.find(key); iter != m_samplers.end()) {
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return iter->second;
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}
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float aniso_ratio = 1.0f;
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const auto mag_filter = r.XyMagFilter();
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const auto min_filter = r.XyMinFilter();
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auto is_aniso_filter = [](uint8_t filter) {
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switch (static_cast<Prospero::SamplerFilter>(filter)) {
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case Prospero::SamplerFilter::kAnisoPoint:
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case Prospero::SamplerFilter::kAnisoLinear: return true;
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case Prospero::SamplerFilter::kPoint:
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case Prospero::SamplerFilter::kBilinear: return false;
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default: EXIT("unknown sampler filter: %u\n", filter);
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}
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return false;
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};
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auto to_vk_filter = [](uint8_t filter) {
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switch (static_cast<Prospero::SamplerFilter>(filter)) {
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case Prospero::SamplerFilter::kPoint:
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case Prospero::SamplerFilter::kAnisoPoint: return VK_FILTER_NEAREST;
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case Prospero::SamplerFilter::kBilinear:
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case Prospero::SamplerFilter::kAnisoLinear: return VK_FILTER_LINEAR;
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default: EXIT("unknown sampler filter: %u\n", filter);
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}
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return VK_FILTER_NEAREST;
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};
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const bool aniso = is_aniso_filter(mag_filter) || is_aniso_filter(min_filter);
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if (aniso) {
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switch (static_cast<Prospero::SamplerAnisoRatio>(r.MaxAnisoRatio())) {
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case Prospero::SamplerAnisoRatio::kOne: aniso_ratio = 1.0f; break;
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case Prospero::SamplerAnisoRatio::kTwo: aniso_ratio = 2.0f; break;
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case Prospero::SamplerAnisoRatio::kFour: aniso_ratio = 4.0f; break;
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case Prospero::SamplerAnisoRatio::kEight: aniso_ratio = 8.0f; break;
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case Prospero::SamplerAnisoRatio::kSixteen: aniso_ratio = 16.0f; break;
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default: EXIT("unknown ratio: %d\n", static_cast<int>(r.MaxAnisoRatio()));
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}
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}
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const auto mip_filter = r.MipFilter();
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float min_lod = 0.0f;
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float max_lod = 0.0f;
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if (static_cast<Prospero::SamplerMipFilter>(mip_filter) != Prospero::SamplerMipFilter::kNone) {
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min_lod = static_cast<float>(r.MinLod()) / 256.0f;
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max_lod = static_cast<float>(r.MaxLod()) / 256.0f;
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}
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VkSamplerCreateInfo sampler_info {};
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auto to_vk_address_mode = [](uint8_t clamp) {
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switch (static_cast<Prospero::SamplerClampMode>(clamp)) {
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case Prospero::SamplerClampMode::kWrap: return VK_SAMPLER_ADDRESS_MODE_REPEAT;
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case Prospero::SamplerClampMode::kMirror: return VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
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case Prospero::SamplerClampMode::kClampLastTexel: return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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case Prospero::SamplerClampMode::kMirrorOnceLastTexel:
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return VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE;
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case Prospero::SamplerClampMode::kClampHalfBorder:
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return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER;
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case Prospero::SamplerClampMode::kMirrorOnceHalfBorder:
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return VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE;
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case Prospero::SamplerClampMode::kClampBorder: return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER;
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case Prospero::SamplerClampMode::kMirrorOnceBorder:
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return VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE;
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default: EXIT("unknown clamp: %u\n", clamp);
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}
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return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER;
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};
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VkBorderColor border = VK_BORDER_COLOR_INT_TRANSPARENT_BLACK;
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switch (static_cast<Prospero::SamplerBorderColor>(r.BorderColorType())) {
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case Prospero::SamplerBorderColor::kTransBlack:
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border = VK_BORDER_COLOR_INT_TRANSPARENT_BLACK;
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break;
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case Prospero::SamplerBorderColor::kOpaqueBlack: border = VK_BORDER_COLOR_INT_OPAQUE_BLACK; break;
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case Prospero::SamplerBorderColor::kOpaqueWhite: border = VK_BORDER_COLOR_INT_OPAQUE_WHITE; break;
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case Prospero::SamplerBorderColor::kFromTable:
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LOGF(
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"temporary: approximating table border color as transparent black, index = %" PRIu16
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"\n",
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r.BorderColorPtr());
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border = VK_BORDER_COLOR_INT_TRANSPARENT_BLACK;
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break;
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default: EXIT("unknown border color: %d", static_cast<int>(r.BorderColorType()));
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}
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sampler_info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
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sampler_info.pNext = nullptr;
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sampler_info.flags = 0;
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sampler_info.magFilter = to_vk_filter(mag_filter);
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sampler_info.minFilter = to_vk_filter(min_filter);
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sampler_info.mipmapMode =
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(static_cast<Prospero::SamplerMipFilter>(mip_filter) == Prospero::SamplerMipFilter::kLinear
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? VK_SAMPLER_MIPMAP_MODE_LINEAR
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: VK_SAMPLER_MIPMAP_MODE_NEAREST);
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sampler_info.addressModeU = to_vk_address_mode(r.ClampX());
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sampler_info.addressModeV = to_vk_address_mode(r.ClampY());
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sampler_info.addressModeW = to_vk_address_mode(r.ClampZ());
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sampler_info.mipLodBias =
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static_cast<float>(static_cast<int16_t>((r.LodBias() ^ 0x2000u) - 0x2000u)) / 256.0f;
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sampler_info.anisotropyEnable = (aniso ? VK_TRUE : VK_FALSE);
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sampler_info.maxAnisotropy = aniso_ratio;
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sampler_info.compareEnable = (r.DepthCompareFunc() != 0 ? VK_TRUE : VK_FALSE);
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sampler_info.compareOp = static_cast<VkCompareOp>(r.DepthCompareFunc());
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sampler_info.minLod = min_lod;
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sampler_info.maxLod = max_lod;
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sampler_info.borderColor = border;
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sampler_info.unnormalizedCoordinates = (r.ForceUnormCoords() ? VK_TRUE : VK_FALSE);
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if (r.ForceUnormCoords()) {
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sampler_info.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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sampler_info.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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sampler_info.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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sampler_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
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sampler_info.minLod = 0.0f;
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sampler_info.maxLod = 0.0f;
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sampler_info.anisotropyEnable = VK_FALSE;
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sampler_info.maxAnisotropy = 1.0f;
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sampler_info.compareEnable = VK_FALSE;
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sampler_info.mipLodBias = 0.0f;
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}
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VkSampler vk_sampler = nullptr;
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vkCreateSampler(g_render_ctx->GetGraphicCtx()->device, &sampler_info, nullptr, &vk_sampler);
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EXIT_NOT_IMPLEMENTED(vk_sampler == nullptr);
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m_samplers.emplace(key, vk_sampler);
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return vk_sampler;
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}
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} // namespace Libs::Graphics
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