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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cstdlib>
#include <string>
#define SDL_MAIN_HANDLED
// Ignore -Wimplicit-fallthrough due to https://github.com/libsdl-org/SDL/issues/4307
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
#endif
#include <SDL.h>
#ifdef __clang__
#pragma clang diagnostic pop
#endif
#include <fmt/format.h>
#include <glad/glad.h>
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/scm_rev.h"
#include "common/settings.h"
#include "common/string_util.h"
#include "core/core.h"
#include "input_common/keyboard.h"
#include "input_common/main.h"
#include "video_core/renderer_base.h"
#include "yuzu_cmd/emu_window/emu_window_sdl2_gl.h"
class SDLGLContext : public Core::Frontend::GraphicsContext {
public:
explicit SDLGLContext(SDL_Window* window_) : window{window_} {
context = SDL_GL_CreateContext(window);
}
~SDLGLContext() {
DoneCurrent();
SDL_GL_DeleteContext(context);
}
void SwapBuffers() override {
SDL_GL_SwapWindow(window);
}
void MakeCurrent() override {
if (is_current) {
return;
}
is_current = SDL_GL_MakeCurrent(window, context) == 0;
}
void DoneCurrent() override {
if (!is_current) {
return;
}
SDL_GL_MakeCurrent(window, nullptr);
is_current = false;
}
private:
SDL_Window* window;
SDL_GLContext context;
bool is_current = false;
};
bool EmuWindow_SDL2_GL::SupportsRequiredGLExtensions() {
std::vector<std::string_view> unsupported_ext;
// Extensions required to support some texture formats.
if (!GLAD_GL_EXT_texture_compression_s3tc) {
unsupported_ext.push_back("EXT_texture_compression_s3tc");
}
if (!GLAD_GL_ARB_texture_compression_rgtc) {
unsupported_ext.push_back("ARB_texture_compression_rgtc");
}
for (const auto& extension : unsupported_ext) {
LOG_CRITICAL(Frontend, "Unsupported GL extension: {}", extension);
}
return unsupported_ext.empty();
}
EmuWindow_SDL2_GL::EmuWindow_SDL2_GL(InputCommon::InputSubsystem* input_subsystem, bool fullscreen)
: EmuWindow_SDL2{input_subsystem} {
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 6);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 0);
SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1);
if (Settings::values.renderer_debug) {
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG);
}
SDL_GL_SetSwapInterval(0);
std::string window_title = fmt::format("yuzu {} | {}-{}", Common::g_build_fullname,
Common::g_scm_branch, Common::g_scm_desc);
render_window =
SDL_CreateWindow(window_title.c_str(),
SDL_WINDOWPOS_UNDEFINED, // x position
SDL_WINDOWPOS_UNDEFINED, // y position
Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
if (render_window == nullptr) {
LOG_CRITICAL(Frontend, "Failed to create SDL2 window! {}", SDL_GetError());
exit(1);
}
SetWindowIcon();
if (fullscreen) {
Fullscreen();
}
window_context = SDL_GL_CreateContext(render_window);
core_context = CreateSharedContext();
if (window_context == nullptr) {
LOG_CRITICAL(Frontend, "Failed to create SDL2 GL context: {}", SDL_GetError());
exit(1);
}
if (core_context == nullptr) {
LOG_CRITICAL(Frontend, "Failed to create shared SDL2 GL context: {}", SDL_GetError());
exit(1);
}
if (!gladLoadGLLoader(static_cast<GLADloadproc>(SDL_GL_GetProcAddress))) {
LOG_CRITICAL(Frontend, "Failed to initialize GL functions! {}", SDL_GetError());
exit(1);
}
if (!SupportsRequiredGLExtensions()) {
LOG_CRITICAL(Frontend, "GPU does not support all required OpenGL extensions! Exiting...");
exit(1);
}
OnResize();
OnMinimalClientAreaChangeRequest(GetActiveConfig().min_client_area_size);
SDL_PumpEvents();
LOG_INFO(Frontend, "yuzu Version: {} | {}-{}", Common::g_build_fullname, Common::g_scm_branch,
Common::g_scm_desc);
Settings::LogSettings();
}
EmuWindow_SDL2_GL::~EmuWindow_SDL2_GL() {
core_context.reset();
SDL_GL_DeleteContext(window_context);
}
std::unique_ptr<Core::Frontend::GraphicsContext> EmuWindow_SDL2_GL::CreateSharedContext() const {
return std::make_unique<SDLGLContext>(render_window);
}
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