1 // Copyright 2019 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef VK_FORMAT_HPP_ 16 #define VK_FORMAT_HPP_ 17 18 #include "System/Types.hpp" 19 20 #include "Vulkan/VulkanPlatform.hpp" 21 22 namespace vk { 23 24 class Format 25 { 26 public: Format()27 Format() {} Format(VkFormat format)28 Format(VkFormat format) 29 : format(format) 30 {} operator VkFormat() const31 inline operator VkFormat() const { return format; } 32 33 bool isUnsignedNormalized() const; 34 bool isSignedNormalized() const; 35 bool isSignedUnnormalizedInteger() const; 36 bool isUnsignedUnnormalizedInteger() const; 37 bool isUnnormalizedInteger() const; 38 39 VkImageAspectFlags getAspects() const; 40 Format getAspectFormat(VkImageAspectFlags aspect) const; 41 bool isStencil() const; 42 bool isDepth() const; 43 bool isSRGBformat() const; 44 bool isFloatFormat() const; 45 bool isYcbcrFormat() const; 46 47 bool isCompatible(const Format &other) const; 48 bool isCompressed() const; 49 VkFormat getDecompressedFormat() const; 50 int blockWidth() const; 51 int blockHeight() const; 52 int bytesPerBlock() const; 53 54 int componentCount() const; 55 bool isUnsignedComponent(int component) const; 56 57 int bytes() const; 58 int pitchB(int width, int border, bool target) const; 59 int sliceB(int width, int height, int border, bool target) const; 60 61 sw::float4 getScale() const; 62 63 bool supportsColorAttachmentBlend() const; 64 65 // Texture sampling utilities 66 bool has16bitPackedTextureFormat() const; 67 bool has8bitTextureComponents() const; 68 bool has16bitTextureComponents() const; 69 bool has32bitIntegerTextureComponents() const; 70 bool isRGBComponent(int component) const; 71 72 static uint8_t mapTo8bit(VkFormat format); 73 74 private: 75 VkFormat compatibleFormat() const; 76 int sliceBUnpadded(int width, int height, int border, bool target) const; 77 78 VkFormat format = VK_FORMAT_UNDEFINED; 79 }; 80 81 } // namespace vk 82 83 #endif // VK_FORMAT_HPP_ 84