Duckstation/src/util/postprocessing_shader_glsl.h

57 lines
1.8 KiB
C++

// SPDX-FileCopyrightText: 2019-2023 Connor McLaughlin <stenzek@gmail.com>
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
#pragma once
#include "postprocessing_shader.h"
namespace PostProcessing {
class GLSLShader final : public Shader
{
public:
GLSLShader();
GLSLShader(std::string name, std::string code);
~GLSLShader();
ALWAYS_INLINE const std::string& GetCode() const { return m_code; }
bool IsValid() const override;
bool LoadFromFile(std::string name, const char* filename, Error* error);
bool LoadFromString(std::string name, std::string code, Error* error);
bool ResizeOutput(GPUTexture::Format format, u32 width, u32 height) override;
bool CompilePipeline(GPUTexture::Format format, u32 width, u32 height) override;
bool Apply(GPUTexture* input, GPUFramebuffer* final_target, s32 final_left, s32 final_top, s32 final_width,
s32 final_height, s32 orig_width, s32 orig_height, u32 target_width, u32 target_height) override;
private:
struct CommonUniforms
{
float src_rect[4];
float src_size[2];
float resolution[2];
float rcp_resolution[2];
float window_resolution[2];
float rcp_window_resolution[2];
float original_size[2];
float padded_original_size[2];
float time;
float padding;
};
void LoadOptions();
u32 GetUniformsSize() const;
void FillUniformBuffer(void* buffer, u32 texture_width, s32 texture_height, s32 texture_view_x, s32 texture_view_y,
s32 texture_view_width, s32 texture_view_height, u32 window_width, u32 window_height,
s32 original_width, s32 original_height, float time) const;
std::string m_code;
std::unique_ptr<GPUPipeline> m_pipeline;
std::unique_ptr<GPUSampler> m_sampler;
};
} // namespace PostProcessing