46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
#pragma once
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#include "OpenGLRenderer.h"
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#include "ShaderTypes.h"
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#include <string>
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#include <vector>
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class ShaderTextureBindings
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{
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public:
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using LayerProgram = OpenGLRenderer::LayerProgram;
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using PassProgram = OpenGLRenderer::LayerProgram::PassProgram;
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struct RuntimeTextureBinding
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{
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std::string semanticName;
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std::string samplerName;
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GLuint texture = 0;
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GLuint textureUnit = 0;
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};
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struct RuntimeTextureBindingPlan
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{
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std::vector<RuntimeTextureBinding> bindings;
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};
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bool LoadTextureAsset(const ShaderTextureAsset& textureAsset, GLuint& textureId, std::string& error);
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void CreateTextBindings(const RuntimeRenderState& state, std::vector<LayerProgram::TextBinding>& textBindings);
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bool UpdateTextBindingTexture(const RuntimeRenderState& state, LayerProgram::TextBinding& textBinding, std::string& error);
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GLint FindSamplerUniformLocation(GLuint program, const std::string& samplerName) const;
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GLuint ResolveFeedbackTextureUnit(const RuntimeRenderState& state, unsigned historyCap) const;
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GLuint ResolveShaderTextureBase(const RuntimeRenderState& state, unsigned historyCap) const;
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void AssignLayerSamplerUniforms(GLuint program, const RuntimeRenderState& state, const PassProgram& passProgram, unsigned historyCap) const;
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RuntimeTextureBindingPlan BuildLayerRuntimeBindingPlan(
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const PassProgram& passProgram,
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GLuint layerInputTexture,
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GLuint originalLayerInputTexture,
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const RuntimeRenderState& state,
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GLuint feedbackTexture,
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const std::vector<GLuint>& sourceHistoryTextures,
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const std::vector<GLuint>& temporalHistoryTextures) const;
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void BindRuntimeTexturePlan(const RuntimeTextureBindingPlan& plan) const;
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void UnbindRuntimeTexturePlan(const RuntimeTextureBindingPlan& plan) const;
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};
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