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#include "../core_config.h"
#if ASURA_WINDOW_SDL
#include <SDL2/SDL.h>
#include <asura-utils/exceptions/exception.h>
#include "window_impl_sdl.h"
using namespace AEGraphics;
namespace AsuraEngine
{
namespace Wnd
{
#define asura_flag_to_sdl_flag(flag, _flag, _sdl_flag) \
if ((flag & _flag) != 0) \
flag |= _sdl_flag
WindowImplSDL::WindowImplSDL(const WindowConfig& config)
: mWnd(nullptr)
, mGLContext(0)
{
if (SDL_Init(SDL_INIT_VIDEO) < 0)
throw Exception("Cant init sdl video.");
int flag = 0x0;
asura_flag_to_sdl_flag(flag, WINDOW_FULLSCREEN, SDL_WINDOW_FULLSCREEN);
asura_flag_to_sdl_flag(flag, WINDOW_OPENGL, SDL_WINDOW_OPENGL);
asura_flag_to_sdl_flag(flag, WINDOW_SHOWN, SDL_WINDOW_SHOWN);
asura_flag_to_sdl_flag(flag, WINDOW_HIDDEN, SDL_WINDOW_HIDDEN);
asura_flag_to_sdl_flag(flag, WINDOW_BORDERLESS, SDL_WINDOW_BORDERLESS);
asura_flag_to_sdl_flag(flag, WINDOW_RESIZABLE, SDL_WINDOW_RESIZABLE);
asura_flag_to_sdl_flag(flag, WINDOW_MINIMIZED, SDL_WINDOW_MINIMIZED);
asura_flag_to_sdl_flag(flag, WINDOW_MAXIMIZED, SDL_WINDOW_MAXIMIZED);
asura_flag_to_sdl_flag(flag, WINDOW_INPUT_GRABBED, SDL_WINDOW_INPUT_GRABBED);
asura_flag_to_sdl_flag(flag, WINDOW_INPUT_FOCUS, SDL_WINDOW_INPUT_FOCUS);
asura_flag_to_sdl_flag(flag, WINDOW_MOUSE_FOCUS, SDL_WINDOW_MOUSE_FOCUS);
asura_flag_to_sdl_flag(flag, WINDOW_ALLOW_HIGHDPI, SDL_WINDOW_ALLOW_HIGHDPI);
asura_flag_to_sdl_flag(flag, WINDOW_MOUSE_CAPTURE, SDL_WINDOW_MOUSE_CAPTURE);
asura_flag_to_sdl_flag(flag, WINDOW_ALWAYS_ON_TOP, SDL_WINDOW_ALWAYS_ON_TOP);
// Set GL window / framebuffer attributes.
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 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, 8);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_RETAINED_BACKING, 0);
mWnd = SDL_CreateWindow(config.title.c_str(), config.x, config.y, config.width, config.height, flag);
if (!mWnd)
throw Exception("Cant create SDL window.");
// ͼ
try
{
if (config.icon)
{
ImageData* img = config.icon;
if (img->format == COLOR_FORMAT_RGBA8)
{
SDL_Surface *surface;
img->Lock();
int w = img->width, h = img->height;
surface = SDL_CreateRGBSurfaceFrom(
img->pixels,
w, h,
32,
w * 4,
Color32::RMASK,
Color32::GMASK,
Color32::BMASK,
Color32::AMASK
);
img->Unlock();
SDL_SetWindowIcon(mWnd, surface);
SDL_FreeSurface(surface);
}
}
} catch (...)
{
}
mGLContext = SDL_GL_CreateContext(mWnd);
if (!mGLContext)
{
SDL_DestroyWindow(mWnd);
throw Exception("Cant create SDL GL Context.");
}
SDL_GL_MakeCurrent(mWnd, mGLContext);
SDL_GL_SetSwapInterval(config.vsync ? 1 : 0);
}
WindowImplSDL::~WindowImplSDL()
{
SDL_GL_DeleteContext(mGLContext);
SDL_DestroyWindow(mWnd);
SDL_FlushEvent(SDL_WINDOWEVENT);
}
void WindowImplSDL::SetSize(uint width, uint height)
{
SDL_SetWindowSize(mWnd, width, height);
}
void WindowImplSDL::SetPosition(int x, int y)
{
SDL_SetWindowPosition(mWnd, x, y);
}
void WindowImplSDL::SetTitils(const std::string& title)
{
SDL_SetWindowTitle(mWnd, title.c_str());
}
void WindowImplSDL::Show()
{
SDL_ShowWindow(mWnd);
}
void WindowImplSDL::Hide()
{
SDL_HideWindow(mWnd);
}
void WindowImplSDL::SwapRenderBuffer()
{
SDL_GL_SwapWindow(mWnd);
}
}
}
#endif // ASURA_WINDOW_SDL
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