1 files changed, 88 insertions, 0 deletions
diff --git a/src/video_core/texture_cache/image_view_info.cpp b/src/video_core/texture_cache/image_view_info.cpp
new file mode 100644
index 000000000..faf5b151f
--- /dev/null
+++ b/src/video_core/texture_cache/image_view_info.cpp
@@ -0,0 +1,88 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <limits>
+
+#include "common/assert.h"
+#include "video_core/texture_cache/image_view_info.h"
+#include "video_core/texture_cache/texture_cache.h"
+#include "video_core/texture_cache/types.h"
+#include "video_core/textures/texture.h"
+
+namespace VideoCommon {
+
+namespace {
+
+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:
+        UNREACHABLE_MSG("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