Source code of Windows XP (NT5)
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67 lines
1.3 KiB

#include <stdio.h>
#include <windows.h>
#include <gl\gl.h>
#include "skeltest.h"
#include "small1.h"
SmallTriangle::SmallTriangle()
{
td.swapbuffers = FALSE;
td.iDuration = 10000;
td.iX = 0;
td.iY = 0;
td.iW = 640;
td.iH = 480;
sprintf(td.acName, "Small Triangle (demo only)");
bd.cColorBits = 8;
bd.cDepthBits = 16;
bFlip = FALSE;
}
void SmallTriangle::INITFUNCTION()
{
if (h == 0)
h = 1;
td.iW = w;
td.iH = h;
glViewport(0,0,w,h);
glLoadIdentity();
glOrtho(0.0f, w, 0.0f, h, 1.0f, -1.0f);
}
void SmallTriangle::IDLEFUNCTION()
{
bFlip = !bFlip;
}
void SmallTriangle::RENDFUNCTION()
{
int xa,xb,ya,yb;
// glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// glClear(GL_COLOR_BUFFER_BIT);
if (bFlip)
glColor3f(1.0f, 0.0f, 0.0f);
else
glColor3f(0.0f, 0.0f, 1.0f);
glBegin(GL_TRIANGLES);
for(ya = 0, yb = 10 ; yb <= td.iH ; ya += 10, yb += 10)
for(xa = 0, xb = 10 ; xb <= td.iW ; xa += 10, xb += 10) {
if (bFlip) {
glVertex2i(xa, ya);
glVertex2i(xa, yb);
glVertex2i(xb, yb);
} else {
glVertex2i(xa, ya);
glVertex2i(xb, yb);
glVertex2i(xb, ya);
}
}
glEnd();
glFlush();
}