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internal-screenshot-test: Fix endian problem 

Use bit-shifts to properly generate pixel data.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Derek Foreman 2015-05-26 12:00:49 -05:00 committed by Bryce Harrington
parent 2a746a52d4
commit 97b9b17668
1 changed files with 8 additions and 5 deletions
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13
tests/internal-screenshot-test.c
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@ -184,16 +184,19 @@ capture_screenshot_of_output(struct client *client) {
}
static void
draw_stuff(char *pixels, int w, int h)
draw_stuff(void *pixels, int w, int h)
{
int x, y;
uint8_t r, g, b;
uint32_t *pixel;
for (x = 0; x < w; x++)
for (y = 0; y < h; y++) {
pixels[y * w * 4 + x * 4] = x;
pixels[y * w * 4 + x * 4 + 1] = x + y;
pixels[y * w * 4 + x * 4 + 2] = y;
pixels[y * w * 4 + x * 4 + 3] = 255;
b = x;
g = x + y;
r = y;
pixel = (uint32_t *)pixels + y * w + x;
*pixel = (255 << 24) | (r << 16) | (g << 8) | b;
}
}