diff options
Diffstat (limited to 'src/modules/checkers/checkers.c')
| -rw-r--r-- | src/modules/checkers/checkers.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/modules/checkers/checkers.c b/src/modules/checkers/checkers.c index 32b5aa3..9dcc05c 100644 --- a/src/modules/checkers/checkers.c +++ b/src/modules/checkers/checkers.c @@ -146,6 +146,9 @@ int checkers_fragment_tile_single(const til_fb_fragment_t *fragment, unsigned ti unsigned tiled_w = w * tile_size, tiled_h = h * tile_size; unsigned x, y, xoff, yoff, xshift = 0, yshift = 0; + assert(fragment); + assert(res_fragment); + /* Detect the need for fractional tiles on both axis and shift the fragments * to keep the overall checkered output centered. This complicates res_fragment.{x,y,width,height} * calculations for the peripheral checker tiles as those must clip when shifted. @@ -171,8 +174,32 @@ int checkers_fragment_tile_single(const til_fb_fragment_t *fragment, unsigned ti xoff = x * tile_size; yoff = y * tile_size; + if (fragment->texture) { + assert(res_fragment->texture); + assert(fragment->frame_width == fragment->texture->frame_width); + assert(fragment->frame_height == fragment->texture->frame_height); + assert(fragment->width == fragment->texture->width); + assert(fragment->height == fragment->texture->height); + assert(fragment->x == fragment->texture->x); + assert(fragment->y == fragment->texture->y); + + *(res_fragment->texture) = (til_fb_fragment_t){ + .buf = fragment->texture->buf + (yoff * fragment->texture->pitch) - (y ? (yshift * fragment->texture->pitch) : 0) + (xoff - (x ? xshift : 0)), + .width = MIN(fragment->width - (xoff - xshift), x ? tile_size : (tile_size - xshift)), + .height = MIN(fragment->height - (yoff - yshift), y ? tile_size : (tile_size - yshift)), + .x = x ? 0 : xshift, + .y = y ? 0 : yshift, + .frame_width = tile_size, + .frame_height = tile_size, + .stride = fragment->texture->stride + (fragment->width - MIN(fragment->width - (xoff - xshift), x ? tile_size : (tile_size - xshift))), + .pitch = fragment->texture->pitch, + .cleared = fragment->texture->cleared, + }; + } + *res_fragment = (til_fb_fragment_t){ - .texture = fragment->texture, + .texture = fragment->texture ? res_fragment->texture : NULL, + /* TODO: copy pasta! */ .buf = fragment->buf + (yoff * fragment->pitch) - (y ? (yshift * fragment->pitch) : 0) + (xoff - (x ? xshift : 0)), .width = MIN(fragment->width - (xoff - xshift), x ? tile_size : (tile_size - xshift)), .height = MIN(fragment->height - (yoff - yshift), y ? tile_size : (tile_size - yshift)), |