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damage: Fix uninitialised value

rpi-vc4-hack
Andri Yngvason 2020-05-10 11:52:46 +00:00
parent 8eb6658162
commit 0761a5b818
1 changed files with 4 additions and 2 deletions
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6
src/damage.c
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@ -76,12 +76,14 @@ void damage_check_tile_row(struct pixman_region16* damage,
uint8_t* row_buffer, const uint8_t* buffer, uint8_t* row_buffer, const uint8_t* buffer,
uint32_t y_start, uint32_t width, uint32_t height) uint32_t y_start, uint32_t width, uint32_t height)
{ {
memset(row_buffer, 0, width / 32); uint32_t tiled_width = UDIV_UP(width, 32);
memset(row_buffer, 0, tiled_width);
for (uint32_t y = y_start; y < y_start + height; ++y) for (uint32_t y = y_start; y < y_start + height; ++y)
damage_check_row(row_buffer, buffer + y * width, width); damage_check_row(row_buffer, buffer + y * width, width);
for (uint32_t x = 0; x < width / 32; ++x) for (uint32_t x = 0; x < tiled_width; ++x)
if (row_buffer[x]) if (row_buffer[x])
pixman_region_union_rect(damage, damage, pixman_region_union_rect(damage, damage,
x * 32, y_start, 32, 32); x * 32, y_start, 32, 32);