Merge pull request #83 from glyptodon/fix-false-warning
GUAC-240: Ensure initialization of last_pixel is obvious.
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dc9092be94
@ -343,25 +343,27 @@ static int __guac_common_surface_png_optimality(guac_common_surface* surface,
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/* Get buffer from surface */
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unsigned char* buffer = surface->buffer + rect->y * stride + rect->x * 4;
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/* Image must be at least 1x1 */
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if (width < 1 || height < 1)
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return 0;
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/* For each row */
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for (y = 0; y < height; y++) {
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uint32_t last_pixel;
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uint32_t* row = (uint32_t*) buffer;
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uint32_t last_pixel = *(row++) | 0xFF000000;
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/* For each pixel in current row */
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for (x = 0; x < width; x++) {
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for (x = 1; x < width; x++) {
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/* Get next pixel */
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uint32_t current_pixel = *(row++) | 0xFF000000;
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/* Update same/different counts according to pixel value */
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if (x != 0) {
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if (current_pixel == last_pixel)
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num_same++;
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else
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num_different++;
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}
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if (current_pixel == last_pixel)
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num_same++;
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else
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num_different++;
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last_pixel = current_pixel;
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