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zrle: Define tile side length in a macro

tight-png
Andri Yngvason 2019-09-09 19:09:40 +00:00
parent 3ce98968bb
commit b05791db4a
1 changed files with 11 additions and 8 deletions
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19
src/zrle.c
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@ -30,6 +30,8 @@
#include <uv.h>
#include <pixman.h>
#define TILE_LENGTH 64
#define POPCOUNT(x) __builtin_popcount(x)
#define UDIV_UP(a, b) (((a) + (b) - 1) / (b))
@ -337,14 +339,14 @@ int zrle_encode_box(struct vec* out, const struct rfb_pixel_format *dst_fmt,
{
int r = -1;
int bytes_per_cpixel = dst_fmt->depth / 8;
int chunk_size = 1 + bytes_per_cpixel * 64 * 64;
int chunk_size = 1 + bytes_per_cpixel * TILE_LENGTH * TILE_LENGTH;
struct vec in;
uint32_t *tile = malloc(64 * 64 * 4);
uint32_t *tile = malloc(TILE_LENGTH * TILE_LENGTH * 4);
if (!tile)
goto failure;
if (vec_init(&in, 1 + bytes_per_cpixel * 64 * 64) < 0)
if (vec_init(&in, 1 + bytes_per_cpixel * TILE_LENGTH * TILE_LENGTH) < 0)
goto failure;
struct rfb_server_fb_rect rect = {
@ -363,14 +365,15 @@ int zrle_encode_box(struct vec* out, const struct rfb_pixel_format *dst_fmt,
size_t size_index = out->len;
vec_append_zero(out, 4);
int n_tiles = UDIV_UP(width, 64) * UDIV_UP(height, 64);
int n_tiles =
UDIV_UP(width, TILE_LENGTH) * UDIV_UP(height, TILE_LENGTH);
for (int i = 0; i < n_tiles; ++i) {
int tile_x = (i % UDIV_UP(width, 64)) * 64;
int tile_y = (i / UDIV_UP(width, 64)) * 64;
int tile_x = (i % UDIV_UP(width, TILE_LENGTH)) * TILE_LENGTH;
int tile_y = (i / UDIV_UP(width, TILE_LENGTH)) * TILE_LENGTH;
int tile_width = width - tile_x >= 64 ? 64 : width - tile_x;
int tile_height = height - tile_y >= 64 ? 64 : height - tile_y;
int tile_width = width - tile_x >= TILE_LENGTH ? TILE_LENGTH : width - tile_x;
int tile_height = height - tile_y >= TILE_LENGTH ? TILE_LENGTH : height - tile_y;
int y_off = !(fb->nvnc_modifier & NVNC_MOD_Y_INVERT)
? y + tile_y