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Fix invalid memory usage when using Image.convert

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(cherry picked from commit 34c1a2beaa)
This commit is contained in:
Haoyu Qiu 2022-05-11 16:12:31 +08:00 committed by Rémi Verschelde
parent 7a4187495d
commit b40dff698c
1 changed files with 2 additions and 2 deletions
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4
core/image.cpp
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@ -370,7 +370,7 @@ static void _convert(int p_width, int p_height, const uint8_t *p_src, uint8_t *p
const uint8_t *rofs = &p_src[((y * p_width) + x) * (read_bytes + (read_alpha ? 1 : 0))]; const uint8_t *rofs = &p_src[((y * p_width) + x) * (read_bytes + (read_alpha ? 1 : 0))];
uint8_t *wofs = &p_dst[((y * p_width) + x) * (write_bytes + (write_alpha ? 1 : 0))]; uint8_t *wofs = &p_dst[((y * p_width) + x) * (write_bytes + (write_alpha ? 1 : 0))];
uint8_t rgba[4]; uint8_t rgba[4] = { 0, 0, 0, 255 };
if (read_gray) { if (read_gray) {
rgba[0] = rofs[0]; rgba[0] = rofs[0];
@ -388,7 +388,7 @@ static void _convert(int p_width, int p_height, const uint8_t *p_src, uint8_t *p
if (write_gray) { if (write_gray) {
//TODO: not correct grayscale, should use fixed point version of actual weights //TODO: not correct grayscale, should use fixed point version of actual weights
wofs[0] = uint8_t((uint16_t(rofs[0]) + uint16_t(rofs[1]) + uint16_t(rofs[2])) / 3); wofs[0] = uint8_t((uint16_t(rgba[0]) + uint16_t(rgba[1]) + uint16_t(rgba[2])) / 3);
} else { } else {
for (uint32_t i = 0; i < write_bytes; i++) { for (uint32_t i = 0; i < write_bytes; i++) {
wofs[i] = rgba[i]; wofs[i] = rgba[i];