102 lines
3.8 KiB
C++
Executable File
102 lines
3.8 KiB
C++
Executable File
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "common/settings.h"
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#include "video_core/fsr.h"
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#include "video_core/renderer_opengl/gl_fsr.h"
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#include "video_core/renderer_opengl/gl_shader_manager.h"
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#include "video_core/renderer_opengl/gl_shader_util.h"
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namespace OpenGL {
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using namespace FSR;
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using FsrConstants = std::array<u32, 4 * 4>;
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FSR::FSR(std::string_view fsr_vertex_source, std::string_view fsr_easu_source,
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std::string_view fsr_rcas_source)
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: fsr_vertex{CreateProgram(fsr_vertex_source, GL_VERTEX_SHADER)},
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fsr_easu_frag{CreateProgram(fsr_easu_source, GL_FRAGMENT_SHADER)},
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fsr_rcas_frag{CreateProgram(fsr_rcas_source, GL_FRAGMENT_SHADER)} {
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glProgramUniform2f(fsr_vertex.handle, 0, 1.0f, 1.0f);
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glProgramUniform2f(fsr_vertex.handle, 1, 0.0f, 0.0f);
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}
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FSR::~FSR() = default;
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void FSR::Draw(ProgramManager& program_manager, const Common::Rectangle<u32>& screen,
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u32 input_image_width, u32 input_image_height,
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const Common::Rectangle<int>& crop_rect) {
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const auto output_image_width = screen.GetWidth();
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const auto output_image_height = screen.GetHeight();
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if (fsr_intermediate_tex.handle) {
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GLint fsr_tex_width, fsr_tex_height;
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glGetTextureLevelParameteriv(fsr_intermediate_tex.handle, 0, GL_TEXTURE_WIDTH,
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&fsr_tex_width);
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glGetTextureLevelParameteriv(fsr_intermediate_tex.handle, 0, GL_TEXTURE_HEIGHT,
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&fsr_tex_height);
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if (static_cast<u32>(fsr_tex_width) != output_image_width ||
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static_cast<u32>(fsr_tex_height) != output_image_height) {
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fsr_intermediate_tex.Release();
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}
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}
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if (!fsr_intermediate_tex.handle) {
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fsr_intermediate_tex.Create(GL_TEXTURE_2D);
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glTextureStorage2D(fsr_intermediate_tex.handle, 1, GL_RGB16F, output_image_width,
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output_image_height);
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glNamedFramebufferTexture(fsr_framebuffer.handle, GL_COLOR_ATTACHMENT0,
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fsr_intermediate_tex.handle, 0);
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}
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GLint old_draw_fb;
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glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &old_draw_fb);
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glFrontFace(GL_CW);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fsr_framebuffer.handle);
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glViewportIndexedf(0, 0.0f, 0.0f, static_cast<GLfloat>(output_image_width),
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static_cast<GLfloat>(output_image_height));
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FsrConstants constants;
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FsrEasuConOffset(
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constants.data() + 0, constants.data() + 4, constants.data() + 8, constants.data() + 12,
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static_cast<f32>(crop_rect.GetWidth()), static_cast<f32>(crop_rect.GetHeight()),
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static_cast<f32>(input_image_width), static_cast<f32>(input_image_height),
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static_cast<f32>(output_image_width), static_cast<f32>(output_image_height),
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static_cast<f32>(crop_rect.left), static_cast<f32>(crop_rect.top));
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glProgramUniform4uiv(fsr_easu_frag.handle, 0, sizeof(constants), std::data(constants));
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program_manager.BindPresentPrograms(fsr_vertex.handle, fsr_easu_frag.handle);
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glDrawArrays(GL_TRIANGLES, 0, 3);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, old_draw_fb);
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glBindTextureUnit(0, fsr_intermediate_tex.handle);
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const float sharpening =
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static_cast<float>(Settings::values.fsr_sharpening_slider.GetValue()) / 100.0f;
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FsrRcasCon(constants.data(), sharpening);
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glProgramUniform4uiv(fsr_rcas_frag.handle, 0, sizeof(constants), std::data(constants));
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}
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void FSR::InitBuffers() {
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fsr_framebuffer.Create();
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}
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void FSR::ReleaseBuffers() {
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fsr_framebuffer.Release();
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fsr_intermediate_tex.Release();
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}
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const OGLProgram& FSR::GetPresentFragmentProgram() const noexcept {
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return fsr_rcas_frag;
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}
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bool FSR::AreBuffersInitialized() const noexcept {
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return fsr_framebuffer.handle;
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}
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} // namespace OpenGL
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