You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.0 KiB
64 lines
1.0 KiB
#include "graphics.h"
|
|
|
|
#include <GL/gl.h>
|
|
#include <GL/glu.h>
|
|
|
|
Graphics g_graphics;
|
|
|
|
Graphics::Graphics()
|
|
{
|
|
|
|
}
|
|
|
|
Graphics::~Graphics()
|
|
{
|
|
|
|
}
|
|
|
|
void Graphics::init()
|
|
{
|
|
// setup opengl
|
|
glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // black background
|
|
glEnable(GL_ALPHA_TEST); // enable alpha
|
|
glAlphaFunc(GL_GREATER, 0.0f); // default alpha mode
|
|
glDisable(GL_DEPTH_TEST); // we are rendering 2D only, we don't need it
|
|
}
|
|
|
|
void Graphics::terminate()
|
|
{
|
|
|
|
}
|
|
|
|
void Graphics::resize(int width, int height)
|
|
{
|
|
// resize gl viewport
|
|
glViewport(0, 0, width, height);
|
|
|
|
/*
|
|
0,0---------0,w
|
|
| |
|
|
| |
|
|
| |
|
|
h,0---------h,w
|
|
*/
|
|
// setup view region like above
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
gluOrtho2D(0.0f, width, height, 0.0f);
|
|
|
|
// back to model view
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
}
|
|
|
|
void Graphics::beginRender()
|
|
{
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
glLoadIdentity();
|
|
}
|
|
|
|
void Graphics::endRender()
|
|
{
|
|
|
|
}
|