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vwebp: activate GLUT double-buffering

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This prevents the flickering of animated webp + alpha.

Change-Id: I335a434ccc6c90e32528c9832555a38cc0f71cc4
This commit is contained in:
Pascal Massimino 2017-05-09 18:02:25 +02:00
parent 4d7084350e
commit 818d795b09
1 changed files with 2 additions and 2 deletions
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4
examples/vwebp.c
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@ -378,13 +378,13 @@ static void HandleDisplay(void) {
} }
} }
glPopMatrix(); glPopMatrix();
glFlush(); glutSwapBuffers();
} }
static void StartDisplay(void) { static void StartDisplay(void) {
const int width = kParams.canvas_width; const int width = kParams.canvas_width;
const int height = kParams.canvas_height; const int height = kParams.canvas_height;
glutInitDisplayMode(GLUT_RGBA); glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowSize(width, height); glutInitWindowSize(width, height);
glutCreateWindow("WebP viewer"); glutCreateWindow("WebP viewer");
glutDisplayFunc(HandleDisplay); glutDisplayFunc(HandleDisplay);