GUAC-240: Ensure initialization of last_pixel is obvious.
This commit is contained in:
parent
f17fbf28ea
commit
7cb632c5c9
@ -343,25 +343,27 @@ static int __guac_common_surface_png_optimality(guac_common_surface* surface,
|
|||||||
/* Get buffer from surface */
|
/* Get buffer from surface */
|
||||||
unsigned char* buffer = surface->buffer + rect->y * stride + rect->x * 4;
|
unsigned char* buffer = surface->buffer + rect->y * stride + rect->x * 4;
|
||||||
|
|
||||||
|
/* Image must be at least 1x1 */
|
||||||
|
if (width < 1 || height < 1)
|
||||||
|
return 0;
|
||||||
|
|
||||||
/* For each row */
|
/* For each row */
|
||||||
for (y = 0; y < height; y++) {
|
for (y = 0; y < height; y++) {
|
||||||
|
|
||||||
uint32_t last_pixel;
|
|
||||||
uint32_t* row = (uint32_t*) buffer;
|
uint32_t* row = (uint32_t*) buffer;
|
||||||
|
uint32_t last_pixel = *(row++) | 0xFF000000;
|
||||||
|
|
||||||
/* For each pixel in current row */
|
/* For each pixel in current row */
|
||||||
for (x = 0; x < width; x++) {
|
for (x = 1; x < width; x++) {
|
||||||
|
|
||||||
/* Get next pixel */
|
/* Get next pixel */
|
||||||
uint32_t current_pixel = *(row++) | 0xFF000000;
|
uint32_t current_pixel = *(row++) | 0xFF000000;
|
||||||
|
|
||||||
/* Update same/different counts according to pixel value */
|
/* Update same/different counts according to pixel value */
|
||||||
if (x != 0) {
|
|
||||||
if (current_pixel == last_pixel)
|
if (current_pixel == last_pixel)
|
||||||
num_same++;
|
num_same++;
|
||||||
else
|
else
|
||||||
num_different++;
|
num_different++;
|
||||||
}
|
|
||||||
|
|
||||||
last_pixel = current_pixel;
|
last_pixel = current_pixel;
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user