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// Copyright 2016 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 sw_Sampler_hpp
#define sw_Sampler_hpp
#include "Device/Color.hpp"
#include "Device/Config.hpp"
#include "System/Types.hpp"
#include "Vulkan/VkFormat.h"
namespace vk
{
class Image;
}
namespace sw
{
struct Mipmap
{
const void *buffer[6];
float4 fWidth;
float4 fHeight;
float4 fDepth;
short uHalf[4];
short vHalf[4];
short wHalf[4];
short width[4];
short height[4];
short depth[4];
short onePitchP[4];
int4 pitchP;
int4 sliceP;
};
struct Texture
{
Mipmap mipmap[MIPMAP_LEVELS];
float4 widthWidthHeightHeight;
float4 width;
float4 height;
float4 depth;
};
enum SamplerType
{
SAMPLER_PIXEL,
SAMPLER_VERTEX
};
enum TextureType ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
TEXTURE_NULL, // TODO(b/129523279): Eliminate
TEXTURE_1D,
TEXTURE_2D,
TEXTURE_3D,
TEXTURE_CUBE,
TEXTURE_1D_ARRAY, // Treated as 2D texture with second coordinate 0.
TEXTURE_2D_ARRAY,
TEXTURE_CUBE_ARRAY,
TEXTURE_LAST = TEXTURE_CUBE_ARRAY
};
enum FilterType ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
FILTER_POINT,
FILTER_GATHER,
FILTER_MIN_POINT_MAG_LINEAR,
FILTER_MIN_LINEAR_MAG_POINT,
FILTER_LINEAR,
FILTER_ANISOTROPIC,
FILTER_LAST = FILTER_ANISOTROPIC
};
enum MipmapType ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
MIPMAP_NONE,
MIPMAP_POINT,
MIPMAP_LINEAR,
MIPMAP_LAST = MIPMAP_LINEAR
};
enum AddressingMode ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
ADDRESSING_UNUSED,
ADDRESSING_WRAP,
ADDRESSING_CLAMP,
ADDRESSING_MIRROR,
ADDRESSING_MIRRORONCE,
ADDRESSING_BORDER, // Single color
ADDRESSING_SEAMLESS, // Border of pixels
ADDRESSING_LAYER,
ADDRESSING_TEXELFETCH,
ADDRESSING_LAST = ADDRESSING_TEXELFETCH
};
enum CompareFunc ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
COMPARE_BYPASS,
COMPARE_LESSEQUAL,
COMPARE_GREATEREQUAL,
COMPARE_LESS,
COMPARE_GREATER,
COMPARE_EQUAL,
COMPARE_NOTEQUAL,
COMPARE_ALWAYS,
COMPARE_NEVER,
COMPARE_LAST = COMPARE_NEVER
};
enum SwizzleType ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
SWIZZLE_RED,
SWIZZLE_GREEN,
SWIZZLE_BLUE,
SWIZZLE_ALPHA,
SWIZZLE_ZERO,
SWIZZLE_ONE,
SWIZZLE_LAST = SWIZZLE_ONE
};
struct Sampler
{
TextureType textureType;
vk::Format textureFormat;
FilterType textureFilter;
AddressingMode addressingModeU;
AddressingMode addressingModeV;
AddressingMode addressingModeW;
MipmapType mipmapFilter;
VkComponentMapping swizzle;
bool highPrecisionFiltering;
bool compareEnable;
VkCompareOp compareOp;
VkBorderColor border;
bool unnormalizedCoordinates;
#if PERF_PROFILE
bool compressedFormat;
#endif
};
}
#endif // sw_Sampler_hpp