diff options
Diffstat (limited to 'src/modules/submit')
| -rw-r--r-- | src/modules/submit/submit.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/src/modules/submit/submit.c b/src/modules/submit/submit.c index a5c1941..1d0fea1 100644 --- a/src/modules/submit/submit.c +++ b/src/modules/submit/submit.c @@ -114,15 +114,6 @@ static inline uint32_t sample_grid_bilerp(submit_context_t *ctxt, float x, float uint8_t corners[2][2]; color_t x1, x2; - /* FIXME TODO: this short-circuit produces unsmoothed cells at the - * periphery, and could be simply avoided by putting the peripheral - * cells off-screen so all the samples are within the boundaries. - * Ignoring for now. - */ - if (ix < 1 || ix > GRID_SIZE - 2 || - iy < 1 || iy > GRID_SIZE - 2) - return color_to_uint32(colors[ctxt->cells[iy * GRID_SIZE + ix]]); - i = iy * GRID_SIZE + ix; /* ix,iy forms the corner of a 2x2 kernel, determine which corner */ @@ -192,15 +183,15 @@ static inline uint32_t sample_grid(submit_context_t *ctxt, float x, float y) static void draw_grid(submit_context_t *ctxt, fb_fragment_t *fragment, uint32_t (*sampler)(submit_context_t *ctxt, float x, float y)) { - float xscale = (float)GRID_SIZE / (float)fragment->frame_width; - float yscale = (float)GRID_SIZE / (float)fragment->frame_height; + float xscale = ((float)GRID_SIZE - 1.f) / (float)fragment->frame_width; + float yscale = ((float)GRID_SIZE - 1.f) / (float)fragment->frame_height; for (int y = 0; y < fragment->height; y++) { for (int x = 0; x < fragment->width; x++) { uint32_t color; /* TODO: this could be optimized a bit! i.e. don't recompute the y for every x etc. */ - color = sampler(ctxt, ((float)(fragment->x + x)) * xscale, ((float)(fragment->y + y)) * yscale); + color = sampler(ctxt, .5f + ((float)(fragment->x + x)) * xscale, .5f + ((float)(fragment->y + y)) * yscale); fb_fragment_put_pixel_unchecked(fragment, fragment->x + x, fragment->y + y, color); } } |