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added pixelzoom cmd line opt

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This commit is contained in:
Brian 2007-08-13 18:18:45 -06:00
parent 2f605fd457
commit 9f51e181b1
1 changed files with 5 additions and 0 deletions
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5
progs/trivial/readpixels.c
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@ -10,6 +10,7 @@
#include <GL/glut.h>
static int Width = 250, Height = 250;
static GLfloat Zoom = 1.0;
static void Init(void)
{
@ -70,6 +71,7 @@ static void Draw(void)
image[0], image[1], image[2], image[3]);
/* draw to right half of window */
glWindowPos2iARB(Width, 0);
glPixelZoom(Zoom, Zoom);
glDrawPixels(Width, Height, GL_RGBA, GL_FLOAT, image);
free(image);
@ -86,6 +88,9 @@ int main(int argc, char **argv)
exit(1);
}
if (argc > 1)
Zoom = atof(argv[1]);
Init();
glutReshapeFunc(Reshape);