11504ca4c1
- Replaced instances of Renderer::GetInstance() with Renderer::Get() for consistency across the codebase. - Updated various rendering methods to streamline bitmap updates and enhance performance. - Removed unused includes and comments to improve code clarity and maintainability.
126 lines
3.9 KiB
C++
126 lines
3.9 KiB
C++
#ifndef YAZE_APP_CORE_PLATFORM_BACKEND_H
|
|
#define YAZE_APP_CORE_PLATFORM_BACKEND_H
|
|
|
|
#include <SDL.h>
|
|
|
|
#include <memory>
|
|
#include <stdexcept>
|
|
|
|
#include "app/core/platform/renderer.h"
|
|
#include "app/core/platform/sdl_deleter.h"
|
|
#include "imgui/backends/imgui_impl_sdl2.h"
|
|
#include "imgui/backends/imgui_impl_sdlrenderer2.h"
|
|
|
|
namespace yaze {
|
|
namespace core {
|
|
|
|
template <typename Derived>
|
|
class PlatformBackend {
|
|
public:
|
|
PlatformBackend() = default;
|
|
~PlatformBackend() = default;
|
|
|
|
void init() { static_cast<Derived *>(this)->init(); }
|
|
void init_audio() { static_cast<Derived *>(this)->init_audio(); }
|
|
void shutdown_audio() { static_cast<Derived *>(this)->shutdown_audio(); }
|
|
void shutdown() { static_cast<Derived *>(this)->shutdown(); }
|
|
void new_frame() { static_cast<Derived *>(this)->new_frame(); }
|
|
void render() { static_cast<Derived *>(this)->render(); }
|
|
};
|
|
|
|
class Sdl2Backend : public PlatformBackend<Sdl2Backend> {
|
|
public:
|
|
Sdl2Backend() = default;
|
|
~Sdl2Backend() = default;
|
|
|
|
void init() {
|
|
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) !=
|
|
0) {
|
|
throw std::runtime_error("Failed to initialize SDL2");
|
|
}
|
|
|
|
SDL_DisplayMode display_mode;
|
|
SDL_GetCurrentDisplayMode(0, &display_mode);
|
|
int screen_width = display_mode.w * 0.8;
|
|
int screen_height = display_mode.h * 0.8;
|
|
|
|
window = std::unique_ptr<SDL_Window, core::SDL_Deleter>(
|
|
SDL_CreateWindow("Yet Another Zelda3 Editor", // window title
|
|
SDL_WINDOWPOS_UNDEFINED, // initial x position
|
|
SDL_WINDOWPOS_UNDEFINED, // initial y position
|
|
screen_width, // width, in pixels
|
|
screen_height, // height, in pixels
|
|
SDL_WINDOW_RESIZABLE),
|
|
core::SDL_Deleter());
|
|
if (!window) {
|
|
throw std::runtime_error("Failed to create window");
|
|
}
|
|
|
|
if (!Renderer::Get().CreateRenderer(window.get()).ok()) {
|
|
throw std::runtime_error("Failed to create renderer");
|
|
}
|
|
|
|
ImGui_ImplSDL2_InitForSDLRenderer(window.get(),
|
|
Renderer::Get().renderer());
|
|
ImGui_ImplSDLRenderer2_Init(Renderer::Get().renderer());
|
|
}
|
|
|
|
void init_audio() {
|
|
const int audio_frequency = 48000;
|
|
SDL_AudioSpec want, have;
|
|
SDL_memset(&want, 0, sizeof(want));
|
|
want.freq = audio_frequency;
|
|
want.format = AUDIO_S16;
|
|
want.channels = 2;
|
|
want.samples = 2048;
|
|
want.callback = NULL; // Uses the queue
|
|
audio_device_ = SDL_OpenAudioDevice(NULL, 0, &want, &have, 0);
|
|
if (audio_device_ == 0) {
|
|
throw std::runtime_error(
|
|
absl::StrFormat("Failed to open audio: %s\n", SDL_GetError()));
|
|
}
|
|
audio_buffer_ = std::make_shared<int16_t>(audio_frequency / 50 * 4);
|
|
SDL_PauseAudioDevice(audio_device_, 0);
|
|
}
|
|
|
|
void shutdown_audio() {
|
|
SDL_PauseAudioDevice(audio_device_, 1);
|
|
SDL_CloseAudioDevice(audio_device_);
|
|
}
|
|
|
|
void shutdown() {
|
|
ImGui_ImplSDL2_Shutdown();
|
|
ImGui_ImplSDLRenderer2_Shutdown();
|
|
SDL_DestroyRenderer(Renderer::Get().renderer());
|
|
SDL_DestroyWindow(window.get());
|
|
SDL_Quit();
|
|
}
|
|
|
|
void new_frame() {
|
|
ImGui_ImplSDLRenderer2_NewFrame();
|
|
ImGui_ImplSDL2_NewFrame();
|
|
}
|
|
|
|
void render() {
|
|
ImGui::Render();
|
|
SDL_RenderClear(Renderer::Get().renderer());
|
|
ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData(),
|
|
Renderer::Get().renderer());
|
|
SDL_RenderPresent(Renderer::Get().renderer());
|
|
}
|
|
|
|
auto window_ptr() -> SDL_Window * { return window.get(); }
|
|
auto audio_device() -> SDL_AudioDeviceID { return audio_device_; }
|
|
auto audio_buffer() -> std::shared_ptr<int16_t> { return audio_buffer_; }
|
|
|
|
private:
|
|
SDL_AudioDeviceID audio_device_;
|
|
std::shared_ptr<int16_t> audio_buffer_;
|
|
std::unique_ptr<SDL_Window, SDL_Deleter> window;
|
|
};
|
|
|
|
} // namespace core
|
|
} // namespace yaze
|
|
|
|
#endif // YAZE_APP_CORE_PLATFORM_BACKEND_H
|