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// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <limits>
#include "common/assert.h"
#include "video_core/texture_cache/image_view_info.h"
#include "video_core/texture_cache/texture_cache_base.h"
#include "video_core/texture_cache/types.h"
#include "video_core/texture_cache/util.h"
#include "video_core/textures/texture.h"
namespace VideoCommon {
namespace {
using Tegra::Texture::TextureType;
constexpr u8 RENDER_TARGET_SWIZZLE = std::numeric_limits<u8>::max();
[[nodiscard]] u8 CastSwizzle(SwizzleSource source) {
const u8 casted = static_cast<u8>(source);
ASSERT(static_cast<SwizzleSource>(casted) == source);
return casted;
}
} // Anonymous namespace
ImageViewInfo::ImageViewInfo(const TICEntry& config, s32 base_layer) noexcept
: format{PixelFormatFromTIC(config)}, x_source{CastSwizzle(config.x_source)},
y_source{CastSwizzle(config.y_source)}, z_source{CastSwizzle(config.z_source)},
w_source{CastSwizzle(config.w_source)} {
range.base = SubresourceBase{
.level = static_cast<s32>(config.res_min_mip_level),
.layer = base_layer,
};
range.extent.levels = config.res_max_mip_level - config.res_min_mip_level + 1;
switch (config.texture_type) {
case TextureType::Texture1D:
ASSERT(config.Height() == 1);
ASSERT(config.Depth() == 1);
type = ImageViewType::e1D;
break;
case TextureType::Texture2D:
case TextureType::Texture2DNoMipmap:
ASSERT(config.Depth() == 1);
type = config.normalized_coords ? ImageViewType::e2D : ImageViewType::Rect;
break;
case TextureType::Texture3D:
type = ImageViewType::e3D;
break;
case TextureType::TextureCubemap:
ASSERT(config.Depth() == 1);
type = ImageViewType::Cube;
range.extent.layers = 6;
break;
case TextureType::Texture1DArray:
type = ImageViewType::e1DArray;
range.extent.layers = config.Depth();
break;
case TextureType::Texture2DArray:
type = ImageViewType::e2DArray;
range.extent.layers = config.Depth();
break;
case TextureType::Texture1DBuffer:
type = ImageViewType::Buffer;
break;
case TextureType::TextureCubeArray:
type = ImageViewType::CubeArray;
range.extent.layers = config.Depth() * 6;
break;
default:
ASSERT_MSG(false, "Invalid texture_type={}", static_cast<int>(config.texture_type.Value()));
break;
}
}
ImageViewInfo::ImageViewInfo(ImageViewType type_, PixelFormat format_,
SubresourceRange range_) noexcept
: type{type_}, format{format_}, range{range_}, x_source{RENDER_TARGET_SWIZZLE},
y_source{RENDER_TARGET_SWIZZLE}, z_source{RENDER_TARGET_SWIZZLE},
w_source{RENDER_TARGET_SWIZZLE} {}
bool ImageViewInfo::IsRenderTarget() const noexcept {
return x_source == RENDER_TARGET_SWIZZLE && y_source == RENDER_TARGET_SWIZZLE &&
z_source == RENDER_TARGET_SWIZZLE && w_source == RENDER_TARGET_SWIZZLE;
}
} // namespace VideoCommon
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