Lines Matching refs:stride
174 static unsigned int match_colors(const uint8_t *block, ptrdiff_t stride,
201 dots[k++] = block[0 + x * 4 + y * stride] * dirr +
202 block[1 + x * 4 + y * stride] * dirg +
203 block[2 + x * 4 + y * stride] * dirb;
237 static void optimize_colors(const uint8_t *block, ptrdiff_t stride,
259 muv += bp[x * 4 + y * stride];
260 if (bp[x * 4 + y * stride] < minv)
261 minv = bp[x * 4 + y * stride];
262 else if (bp[x * 4 + y * stride] > maxv)
263 maxv = bp[x * 4 + y * stride];
275 int r = block[x * 4 + stride * y + 0] - mu[0];
276 int g = block[x * 4 + stride * y + 1] - mu[1];
277 int b = block[x * 4 + stride * y + 2] - mu[2];
330 int dot = block[x * 4 + y * stride + 0] * v_r +
331 block[x * 4 + y * stride + 1] * v_g +
332 block[x * 4 + y * stride + 2] * v_b;
336 minp = block + x * 4 + y * stride;
339 maxp = block + x * 4 + y * stride;
350 static int refine_colors(const uint8_t *block, ptrdiff_t stride,
372 r += block[0 + x * 4 + y * stride];
373 g += block[1 + x * 4 + y * stride];
374 b += block[2 + x * 4 + y * stride];
395 int r = block[0 + x * 4 + y * stride];
396 int g = block[1 + x * 4 + y * stride];
397 int b = block[2 + x * 4 + y * stride];
440 static int constant_color(const uint8_t *block, ptrdiff_t stride)
447 if (first != AV_RL32(block + x * 4 + y * stride))
453 static void compress_color(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
457 int constant = constant_color(block, stride);
471 optimize_colors(block, stride, &max16, &min16);
473 mask = match_colors(block, stride, max16, min16);
478 refine = refine_colors(block, stride, &max16, &min16, mask);
481 mask = match_colors(block, stride, max16, min16);
499 static void compress_alpha(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
513 int val = block[3 + x * 4 + y * stride];
544 int alp = block[3 + x * 4 + y * stride] * 7 + bias;
597 * @param stride scanline in bytes.
601 static int dxt1_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
603 compress_color(dst, stride, block);
613 * @param stride scanline in bytes.
617 static int dxt5_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
619 compress_alpha(dst, stride, block);
620 compress_color(dst + 8, stride, block);
630 * @param stride scanline in bytes.
634 static int dxt5ys_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
642 rgba2ycocg(reorder + x * 4 + y * 16, block + x * 4 + y * stride);
655 * @param stride scanline in bytes.
659 static int rgtc1u_alpha_block(uint8_t *dst, ptrdiff_t stride, const uint8_t *block)
661 compress_alpha(dst, stride, block);