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// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "video_core/host_shaders/fxaa_frag.h"
#include "video_core/host_shaders/fxaa_vert.h"
#include "video_core/renderer_opengl/gl_shader_manager.h"
#include "video_core/renderer_opengl/gl_shader_util.h"
#include "video_core/renderer_opengl/present/fxaa.h"
#include "video_core/renderer_opengl/present/util.h"
namespace OpenGL {
FXAA::FXAA(u32 width, u32 height) {
vert_shader = CreateProgram(HostShaders::FXAA_VERT, GL_VERTEX_SHADER);
frag_shader = CreateProgram(HostShaders::FXAA_FRAG, GL_FRAGMENT_SHADER);
sampler = CreateBilinearSampler();
framebuffer.Create();
texture.Create(GL_TEXTURE_2D);
glTextureStorage2D(texture.handle, 1, GL_RGBA16F, width, height);
glNamedFramebufferTexture(framebuffer.handle, GL_COLOR_ATTACHMENT0, texture.handle, 0);
}
FXAA::~FXAA() = default;
GLuint FXAA::Draw(ProgramManager& program_manager, GLuint input_texture) {
glFrontFace(GL_CCW);
program_manager.BindPresentPrograms(vert_shader.handle, frag_shader.handle);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer.handle);
glBindTextureUnit(0, input_texture);
glDrawArrays(GL_TRIANGLES, 0, 3);
glFrontFace(GL_CW);
return texture.handle;
}
} // namespace OpenGL
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