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// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef VK_FORMAT_HPP_
#define VK_FORMAT_HPP_
#include "System/Types.hpp"
#include "Vulkan/VulkanPlatform.hpp"
namespace vk {
class Format
{
public:
Format() {}
Format(VkFormat format)
: format(format)
{}
inline operator VkFormat() const { return format; }
bool isUnsignedNormalized() const;
bool isSignedNormalized() const;
bool isSignedUnnormalizedInteger() const;
bool isUnsignedUnnormalizedInteger() const;
bool isUnnormalizedInteger() const;
VkImageAspectFlags getAspects() const;
Format getAspectFormat(VkImageAspectFlags aspect) const;
bool isStencil() const;
bool isDepth() const;
bool isSRGBformat() const;
bool isFloatFormat() const;
bool isYcbcrFormat() const;
bool isCompatible(const Format &other) const;
bool isCompressed() const;
VkFormat getDecompressedFormat() const;
int blockWidth() const;
int blockHeight() const;
int bytesPerBlock() const;
int componentCount() const;
bool isUnsignedComponent(int component) const;
int bytes() const;
int pitchB(int width, int border, bool target) const;
int sliceB(int width, int height, int border, bool target) const;
sw::float4 getScale() const;
bool supportsColorAttachmentBlend() const;
// Texture sampling utilities
bool has16bitPackedTextureFormat() const;
bool has8bitTextureComponents() const;
bool has16bitTextureComponents() const;
bool has32bitIntegerTextureComponents() const;
bool isRGBComponent(int component) const;
static uint8_t mapTo8bit(VkFormat format);
static VkFormat mapFrom8bit(uint8_t format);
private:
VkFormat compatibleFormat() const;
int sliceBUnpadded(int width, int height, int border, bool target) const;
VkFormat format = VK_FORMAT_UNDEFINED;
};
} // namespace vk
#endif // VK_FORMAT_HPP_