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Fix encoding with offset

tight-png
Andri Yngvason 2019-08-29 23:02:42 +00:00 committed by Andri Yngvason
parent 20139f617d
commit 46dc074370
1 changed files with 3 additions and 3 deletions
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6
src/zrle.c
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@ -229,14 +229,14 @@ int zrle_encode_box(struct vec* out, const struct rfb_pixel_format *dst_fmt,
int n_tiles = UDIV_UP(width, 64) * UDIV_UP(height, 64); int n_tiles = UDIV_UP(width, 64) * UDIV_UP(height, 64);
for (int i = 0; i < n_tiles; ++i) { for (int i = 0; i < n_tiles; ++i) {
int tile_x = x + (i % UDIV_UP(width, 64)) * 64; int tile_x = (i % UDIV_UP(width, 64)) * 64;
int tile_y = y + (i / UDIV_UP(width, 64)) * 64; int tile_y = (i / UDIV_UP(width, 64)) * 64;
int tile_width = width - tile_x >= 64 ? 64 : width - tile_x; int tile_width = width - tile_x >= 64 ? 64 : width - tile_x;
int tile_height = height - tile_y >= 64 ? 64 : height - tile_y; int tile_height = height - tile_y >= 64 ? 64 : height - tile_y;
zrle_encode_tile(&in, dst_fmt, zrle_encode_tile(&in, dst_fmt,
((uint32_t*)src) + tile_x + tile_y * width, ((uint32_t*)src) + x + tile_x + (y + tile_y) * stride,
src_fmt, stride, tile_width, tile_height); src_fmt, stride, tile_width, tile_height);
r = zrle_deflate(out, &in, &zs, i == n_tiles - 1); r = zrle_deflate(out, &in, &zs, i == n_tiles - 1);