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// SPDX-FileCopyrightText: 2014 Citra Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <cstddef>
#include <cstdlib>
#include <memory>
#include <glad/glad.h>
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/settings.h"
#include "common/telemetry.h"
#include "core/core_timing.h"
#include "core/frontend/emu_window.h"
#include "core/telemetry_session.h"
#include "video_core/renderer_opengl/gl_blit_screen.h"
#include "video_core/renderer_opengl/gl_fsr.h"
#include "video_core/renderer_opengl/gl_rasterizer.h"
#include "video_core/renderer_opengl/gl_shader_manager.h"
#include "video_core/renderer_opengl/gl_shader_util.h"
#include "video_core/renderer_opengl/renderer_opengl.h"
#include "video_core/textures/decoders.h"
namespace OpenGL {
namespace {
const char* GetSource(GLenum source) {
switch (source) {
case GL_DEBUG_SOURCE_API:
return "API";
case GL_DEBUG_SOURCE_WINDOW_SYSTEM:
return "WINDOW_SYSTEM";
case GL_DEBUG_SOURCE_SHADER_COMPILER:
return "SHADER_COMPILER";
case GL_DEBUG_SOURCE_THIRD_PARTY:
return "THIRD_PARTY";
case GL_DEBUG_SOURCE_APPLICATION:
return "APPLICATION";
case GL_DEBUG_SOURCE_OTHER:
return "OTHER";
default:
ASSERT(false);
return "Unknown source";
}
}
const char* GetType(GLenum type) {
switch (type) {
case GL_DEBUG_TYPE_ERROR:
return "ERROR";
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR:
return "DEPRECATED_BEHAVIOR";
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
return "UNDEFINED_BEHAVIOR";
case GL_DEBUG_TYPE_PORTABILITY:
return "PORTABILITY";
case GL_DEBUG_TYPE_PERFORMANCE:
return "PERFORMANCE";
case GL_DEBUG_TYPE_OTHER:
return "OTHER";
case GL_DEBUG_TYPE_MARKER:
return "MARKER";
default:
ASSERT(false);
return "Unknown type";
}
}
void APIENTRY DebugHandler(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length,
const GLchar* message, const void* user_param) {
const char format[] = "{} {} {}: {}";
const char* const str_source = GetSource(source);
const char* const str_type = GetType(type);
switch (severity) {
case GL_DEBUG_SEVERITY_HIGH:
LOG_CRITICAL(Render_OpenGL, format, str_source, str_type, id, message);
break;
case GL_DEBUG_SEVERITY_MEDIUM:
LOG_WARNING(Render_OpenGL, format, str_source, str_type, id, message);
break;
case GL_DEBUG_SEVERITY_NOTIFICATION:
case GL_DEBUG_SEVERITY_LOW:
LOG_DEBUG(Render_OpenGL, format, str_source, str_type, id, message);
break;
}
}
} // Anonymous namespace
RendererOpenGL::RendererOpenGL(Core::TelemetrySession& telemetry_session_,
Core::Frontend::EmuWindow& emu_window_,
Tegra::MaxwellDeviceMemoryManager& device_memory_, Tegra::GPU& gpu_,
std::unique_ptr<Core::Frontend::GraphicsContext> context_)
: RendererBase{emu_window_, std::move(context_)}, telemetry_session{telemetry_session_},
emu_window{emu_window_}, device_memory{device_memory_}, gpu{gpu_}, device{emu_window_},
state_tracker{}, program_manager{device},
rasterizer(emu_window, gpu, device_memory, device, program_manager, state_tracker) {
if (Settings::values.renderer_debug && GLAD_GL_KHR_debug) {
glEnable(GL_DEBUG_OUTPUT);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
glDebugMessageCallback(DebugHandler, nullptr);
}
AddTelemetryFields();
// Initialize default attributes to match hardware's disabled attributes
GLint max_attribs{};
glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &max_attribs);
for (GLint attrib = 0; attrib < max_attribs; ++attrib) {
glVertexAttrib4f(attrib, 0.0f, 0.0f, 0.0f, 1.0f);
}
// Enable seamless cubemaps when per texture parameters are not available
if (!GLAD_GL_ARB_seamless_cubemap_per_texture && !GLAD_GL_AMD_seamless_cubemap_per_texture) {
glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
}
blit_screen = std::make_unique<BlitScreen>(rasterizer, device_memory, state_tracker,
program_manager, device);
}
RendererOpenGL::~RendererOpenGL() = default;
void RendererOpenGL::SwapBuffers(const Tegra::FramebufferConfig* framebuffer) {
if (!framebuffer) {
return;
}
RenderScreenshot(*framebuffer);
state_tracker.BindFramebuffer(0);
blit_screen->DrawScreen(*framebuffer, emu_window.GetFramebufferLayout());
++m_current_frame;
gpu.RendererFrameEndNotify();
rasterizer.TickFrame();
context->SwapBuffers();
render_window.OnFrameDisplayed();
}
void RendererOpenGL::AddTelemetryFields() {
const char* const gl_version{reinterpret_cast<char const*>(glGetString(GL_VERSION))};
const char* const gpu_vendor{reinterpret_cast<char const*>(glGetString(GL_VENDOR))};
const char* const gpu_model{reinterpret_cast<char const*>(glGetString(GL_RENDERER))};
LOG_INFO(Render_OpenGL, "GL_VERSION: {}", gl_version);
LOG_INFO(Render_OpenGL, "GL_VENDOR: {}", gpu_vendor);
LOG_INFO(Render_OpenGL, "GL_RENDERER: {}", gpu_model);
constexpr auto user_system = Common::Telemetry::FieldType::UserSystem;
telemetry_session.AddField(user_system, "GPU_Vendor", std::string(gpu_vendor));
telemetry_session.AddField(user_system, "GPU_Model", std::string(gpu_model));
telemetry_session.AddField(user_system, "GPU_OpenGL_Version", std::string(gl_version));
}
void RendererOpenGL::RenderScreenshot(const Tegra::FramebufferConfig& framebuffer) {
if (!renderer_settings.screenshot_requested) {
return;
}
GLint old_read_fb;
GLint old_draw_fb;
glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &old_read_fb);
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &old_draw_fb);
// Draw the current frame to the screenshot framebuffer
screenshot_framebuffer.Create();
glBindFramebuffer(GL_FRAMEBUFFER, screenshot_framebuffer.handle);
const Layout::FramebufferLayout layout{renderer_settings.screenshot_framebuffer_layout};
GLuint renderbuffer;
glGenRenderbuffers(1, &renderbuffer);
glBindRenderbuffer(GL_RENDERBUFFER, renderbuffer);
glRenderbufferStorage(GL_RENDERBUFFER, GL_SRGB8, layout.width, layout.height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, renderbuffer);
blit_screen->DrawScreen(framebuffer, layout);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
glReadPixels(0, 0, layout.width, layout.height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
renderer_settings.screenshot_bits);
screenshot_framebuffer.Release();
glDeleteRenderbuffers(1, &renderbuffer);
glBindFramebuffer(GL_READ_FRAMEBUFFER, old_read_fb);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, old_draw_fb);
renderer_settings.screenshot_complete_callback(true);
renderer_settings.screenshot_requested = false;
}
} // namespace OpenGL
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