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tight2: limit width & height

tight-encoder-v2
Andri Yngvason 2020-07-08 21:05:25 +00:00
parent e941462fb2
commit 33540d9d5b
1 changed files with 24 additions and 6 deletions
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30
src/tight-encoder-v2.c
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@ -60,6 +60,18 @@ static inline struct tight_tile* tight_tile(struct tight_encoder_v2* self,
return &self->grid[x + y * self->grid_width];
}
static inline uint32_t tight_tile_width(struct tight_encoder_v2* self,
uint32_t x)
{
return x + TSL > self->width ? self->width - x : TSL;
}
static inline uint32_t tight_tile_height(struct tight_encoder_v2* self,
uint32_t y)
{
return y + TSL > self->height ? self->height - y : TSL;
}
int tight_encoder_v2_init(struct tight_encoder_v2* self, uint32_t width,
uint32_t height)
{
@ -237,15 +249,18 @@ static void tight_encode_tile_basic(struct tight_encoder_v2* self,
uint32_t* addr = nvnc_fb_get_addr(self->fb);
uint32_t stride = nvnc_fb_get_width(self->fb);
uint32_t width = tight_tile_width(self, x);
uint32_t height = tight_tile_height(self, y_start);
// TODO: Limit width and hight to the sides
for (uint32_t y = y_start; y < y_start + TSL; ++y) {
for (uint32_t y = y_start; y < y_start + height; ++y) {
void* img = addr + x + y * stride;
pixel32_to_cpixel(row, self->dfmt, img, self->sfmt,
bytes_per_cpixel, TSL);
bytes_per_cpixel, width);
// TODO What to do if the buffer fills up?
if (tight_deflate(tile, row, bytes_per_cpixel * TSL,
zs, y == y_start + TSL - 1) < 0)
if (tight_deflate(tile, row, bytes_per_cpixel * width,
zs, y == y_start + height - 1) < 0)
abort();
}
@ -286,12 +301,15 @@ static void on_encode_tile_done(void* obj)
uint32_t x = index % self->grid_width;
uint32_t y = index / self->grid_width;
uint32_t width = tight_tile_width(self, x * TSL);
uint32_t height = tight_tile_height(self, y * TSL);
struct rfb_server_fb_rect rect = {
.encoding = htonl(RFB_ENCODING_TIGHT),
.x = htons(x * TSL),
.y = htons(y * TSL),
.width = htons(TSL),
.height = htons(TSL),
.width = htons(width),
.height = htons(height),
};
vec_append(self->dst, &rect, sizeof(rect));