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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_Context_hpp
#define sw_Context_hpp
#include "Vulkan/VkConfig.h"
#include "Vulkan/VkDescriptorSet.hpp"
#include "Sampler.hpp"
#include "Stream.hpp"
#include "Point.hpp"
#include "Vertex.hpp"
#include "System/Types.hpp"
#include <Vulkan/VkConfig.h>
namespace vk
{
class DescriptorSet;
class ImageView;
class PipelineLayout;
}
namespace sw
{
struct Sampler;
class PixelShader;
class VertexShader;
class SpirvShader;
struct Triangle;
struct Primitive;
struct Vertex;
class Resource;
enum In // Default input stream semantic
{
Position = 0,
BlendWeight = 1,
BlendIndices = 2,
Normal = 3,
PointSize = 4,
Color0 = 5,
Color1 = 6,
TexCoord0 = 7,
TexCoord1 = 8,
TexCoord2 = 9,
TexCoord3 = 10,
TexCoord4 = 11,
TexCoord5 = 12,
TexCoord6 = 13,
TexCoord7 = 14,
PositionT = 15
};
enum CullMode ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
CULL_NONE,
CULL_CLOCKWISE,
CULL_COUNTERCLOCKWISE,
CULL_LAST = CULL_COUNTERCLOCKWISE
};
enum TransparencyAntialiasing ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
TRANSPARENCY_NONE,
TRANSPARENCY_ALPHA_TO_COVERAGE,
TRANSPARENCY_LAST = TRANSPARENCY_ALPHA_TO_COVERAGE
};
struct PushConstantStorage
{
unsigned char data[vk::MAX_PUSH_CONSTANT_SIZE];
};
class Context
{
public:
Context();
~Context();
void *operator new(size_t bytes);
void operator delete(void *pointer, size_t bytes);
void init();
bool isDrawPoint() const;
bool isDrawLine() const;
bool isDrawTriangle() const;
bool setDepthBufferEnable(bool depthBufferEnable);
bool setAlphaBlendEnable(bool alphaBlendEnable);
bool setColorWriteMask(int index, int colorWriteMask);
bool setWriteSRGB(bool sRGB);
bool depthWriteActive() const;
bool alphaTestActive() const;
bool depthBufferActive() const;
bool stencilActive() const;
bool allTargetsColorClamp() const;
bool alphaBlendActive() const;
VkBlendFactor sourceBlendFactor() const;
VkBlendFactor destBlendFactor() const;
VkBlendOp blendOperation() const;
VkBlendFactor sourceBlendFactorAlpha() const;
VkBlendFactor destBlendFactorAlpha() const;
VkBlendOp blendOperationAlpha() const;
VkPrimitiveTopology topology;
bool stencilEnable;
bool twoSidedStencil;
VkStencilOpState frontStencil;
VkStencilOpState backStencil;
// Pixel processor states
VkCullModeFlags cullMode;
bool frontFacingCCW;
float depthBias;
float slopeDepthBias;
VkFormat renderTargetInternalFormat(int index) const;
bool colorWriteActive() const;
int colorWriteActive(int index) const;
bool colorUsed() const;
vk::DescriptorSet::Bindings descriptorSets = {};
vk::DescriptorSet::DynamicOffsets descriptorDynamicOffsets = {};
Stream input[MAX_VERTEX_INPUTS];
void *indexBuffer;
vk::ImageView *renderTarget[RENDERTARGETS];
vk::ImageView *depthBuffer;
vk::ImageView *stencilBuffer;
vk::PipelineLayout const *pipelineLayout;
// Shaders
const SpirvShader *pixelShader;
const SpirvShader *vertexShader;
// Instancing
int instanceID;
bool occlusionEnabled;
// Pixel processor states
bool rasterizerDiscard;
bool depthBoundsTestEnable;
bool depthBufferEnable;
VkCompareOp depthCompareMode;
bool depthWriteEnable;
bool alphaBlendEnable;
VkBlendFactor sourceBlendFactorState;
VkBlendFactor destBlendFactorState;
VkBlendOp blendOperationState;
VkBlendFactor sourceBlendFactorStateAlpha;
VkBlendFactor destBlendFactorStateAlpha;
VkBlendOp blendOperationStateAlpha;
float lineWidth;
int colorWriteMask[RENDERTARGETS]; // RGBA
unsigned int sampleMask;
unsigned int multiSampleMask;
int sampleCount;
bool alphaToCoverage;
PushConstantStorage pushConstants;
};
}
#endif // sw_Context_hpp