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#include "../core/je_configuration.h"
#if defined(jin_graphics)
#include <iostream>
#include "../utils/je_utils.h"
#include "../audio/sdl/je_sdl_audio.h"
#include "../utils/je_log.h"
#include "shaders/je_shader.h"
#include "je_window.h"
#include "je_gl.h"
#include "je_canvas.h"
using namespace JinEngine::Graphics::Shaders;
namespace JinEngine
{
namespace Graphics
{
bool Window::initSystem(const SettingBase* s)
{
jin_log_info("Initialize window system.");
if (SDL_Init(SDL_INIT_VIDEO) < 0)
return false;
const Setting* setting = (Setting*)s;
mSize.w = setting->width;
mSize.h = setting->height;
mFps = setting->fps;
bool vsync = setting->vsync;
const char* title = setting->title;
if (mWnd)
{
SDL_DestroyWindow(mWnd);
SDL_FlushEvent(SDL_WINDOWEVENT);
}
SDL_GLContext ctx = NULL;
if (ctx)
{
SDL_GL_DeleteContext(ctx);
}
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);
int wx = SDL_WINDOWPOS_UNDEFINED,
wy = SDL_WINDOWPOS_UNDEFINED;
int flag = SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL;
if (setting->fullscreen) flag |= SDL_WINDOW_FULLSCREEN;
if (setting->resizable) flag |= SDL_WINDOW_RESIZABLE;
mWnd = SDL_CreateWindow(title, wx, wy, mSize.w, mSize.h, flag);
if (mWnd == NULL)
return false;
ctx = SDL_GL_CreateContext(mWnd);
if (ctx == NULL)
return false;
SDL_GL_SetSwapInterval(vsync ? 1 : 0);
SDL_GL_MakeCurrent(mWnd, ctx);
// Default configuration
gl.setClearColor(0, 0, 0, 0xff);
glClear(GL_COLOR_BUFFER_BIT);
gl.pushColor(0xff, 0xff, 0xff, 0xff);
gl.enable(GL_BLEND);
gl.enable(GL_TEXTURE_2D);
gl.setBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Bind to default canvas
Canvas::unbind();
Shader::unuse();
// Avoid white blinnk.
swapBuffers();
return true;
}
void Window::quitSystem()
{
jin_log_info("Quit window system.");
// disable opengl
gl.disable(GL_BLEND);
gl.disable(GL_TEXTURE_2D);
// close window
SDL_DestroyWindow(mWnd);
SDL_Quit();
}
void Window::swapBuffers()
{
if (mWnd)
SDL_GL_SwapWindow(mWnd);
}
void Window::setTitle(const char* title)
{
SDL_SetWindowTitle(mWnd, title);
};
} // namespace Graphics
} // namespace JinEngine
#endif // defined(jin_graphics)
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