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-rw-r--r--progs/samples/copy.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/progs/samples/copy.c b/progs/samples/copy.c
index 391c637d6fa..353a3a2e1a2 100644
--- a/progs/samples/copy.c
+++ b/progs/samples/copy.c
@@ -25,6 +25,7 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
+#include <GL/glew.h>
#include <GL/glut.h>
@@ -35,7 +36,6 @@ GLint windW, windH;
char *fileName = 0;
PPMImage *image;
-float point[3];
float zoom;
GLint x, y;
@@ -97,27 +97,27 @@ static void Mouse(int button, int state, int mouseX, int mouseY)
static void Draw(void)
{
+ GLint src[3], dst[3];
glClear(GL_COLOR_BUFFER_BIT);
- point[0] = (windW / 2) - (image->sizeX / 2);
- point[1] = (windH / 2) - (image->sizeY / 2);
- point[2] = 0;
- glRasterPos3fv(point);
+ src[0] = (int) ((windW / 2.0) - (image->sizeX / 2.0));
+ src[1] = (int) ((windH / 2.0) - (image->sizeY / 2.0));
+ src[2] = 0;
+ glWindowPos3ivARB(src);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glPixelZoom(1.0, 1.0);
glDrawPixels(image->sizeX, image->sizeY, GL_RGB, GL_UNSIGNED_BYTE,
image->data);
- point[0] = (float)x;
- point[1] = windH - (float)y;
- point[2] = 0.0;
- glRasterPos3fv(point);
+ dst[0] = x;
+ dst[1] = windH - y;
+ dst[2] = 0;
+ glWindowPos3ivARB(dst);
glPixelZoom(zoom, zoom);
- glCopyPixels((windW/2)-(image->sizeX/2),
- (windH/2)-(image->sizeY/2),
+ glCopyPixels(src[0], src[1],
image->sizeX, image->sizeY, GL_COLOR);
glFlush();
@@ -170,8 +170,8 @@ int main(int argc, char **argv)
image = LoadPPM(fileName);
- windW = 300;
- windH = 300;
+ windW = 2*300;
+ windH = 2*300;
glutInitWindowPosition(0, 0); glutInitWindowSize( windW, windH);
type = GLUT_RGB;
@@ -182,6 +182,7 @@ int main(int argc, char **argv)
exit(1);
}
+ glewInit();
Init();
glutReshapeFunc(Reshape);