Graphics

<br />
#include <windows.h><br />
#include <gl/gl.h><br />
<br />
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int iCmdShow)<br />
{<br />
	HDC hDC;<br />
	HGLRC hRC;<br />
	float theta = 0.0f;<br />
	<br />
<br />
	PIXELFORMATDESCRIPTOR pfd;<br />
	int format;<br />
	<br />
	// get the device context for the whole screen instead of a window<br />
	hDC = GetWindowDC(NULL);<br />
	<br />
	// set the pixel format for the DC<br />
	ZeroMemory( &pfd, sizeof( pfd ) );<br />
	pfd.nSize = sizeof( pfd );<br />
	pfd.nVersion = 1;<br />
	pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;<br />
	pfd.iPixelType = PFD_TYPE_RGBA;<br />
	pfd.cColorBits = 24;<br />
	pfd.cDepthBits = 16;<br />
	pfd.iLayerType = PFD_MAIN_PLANE;<br />
	format = ChoosePixelFormat( hDC, &pfd );<br />
	SetPixelFormat( hDC, format, &pfd );<br />
	<br />
	// create and enable the render context (RC)<br />
	hRC = wglCreateContext( hDC );<br />
	wglMakeCurrent( hDC, hRC );<br />
	<br />
<br />
	while ( true )<br />
	{<br />
		glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );<br />
		glClear( GL_COLOR_BUFFER_BIT );<br />
			<br />
		glPushMatrix();<br />
		glRotatef( theta, 0.0f, 0.0f, 1.0f );<br />
		glBegin( GL_TRIANGLES );<br />
		glColor3f( 1.0f, 0.0f, 0.0f ); glVertex2f( 0.0f, 1.0f );<br />
		glColor3f( 0.0f, 1.0f, 0.0f ); glVertex2f( 0.87f, -0.5f );<br />
		glColor3f( 0.0f, 0.0f, 1.0f ); glVertex2f( -0.87f, -0.5f );<br />
		glEnd();<br />
		glPopMatrix();<br />
			<br />
		SwapBuffers( hDC );<br />
			<br />
		theta += 1.0f;<br />
	}<br />
	<br />
	return 0;<br />
	<br />
}<br />

glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

enableBlend();
glColor4f(1.0f, 1.0f, 1.0f, 0.9f);
renderBackground(wf);     // Render warped background

enableTexture(image);
glBegin(GL_QUADS);        // Draw image over background
glTexCoord2f(0, 1);  glVertex2f(0, 0);
glTexCoord2f(0, 0);  glVertex2f(0, 512);
glTexCoord2f(1, 0);  glVertex2f(512, 512);
glTexCoord2f(1, 1);  glVertex2f(512, 0);
glEnd();
                      
glBindTexture(GL_TEXTURE_2D, backTexture);// Copy image to texture
glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, 512, 512, 0);

disableTexture();
disableBlend();

ifstream texFile("brickbump.ppm");
if (texFile.is_open())
{
	//Load texture properties
	char propBuf[8];
	texFile.getline(propBuf, 8);
	string format = propBuf;
	texFile.getline(propBuf, 8);
	int x = atoi(propBuf);
	texFile.getline(propBuf, 8);
	int y = atoi(propBuf);
	texFile.getline(propBuf, 8);
	int maxValue = atoi(propBuf);

	//Load texture data
	char* texArray = new char[3 * x * y];
	int count = 0;
	while (!texFile.eof())
	{
		texFile.get(texArray[count]);
		count++;
	}

	//Generate textures
	glGenTextures(1, &m_textures[0]);
	glBindTexture(GL_TEXTURE_2D, m_textures[0]);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, x, y, 0, GL_RGB, GL_UNSIGNED_BYTE, texArray);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

	delete [] texArray;
}