Lines Matching refs:alpha
253 int alpha = 1;
293 while ((1 << alpha) < w)
294 alpha++;
297 w2 = 1 << alpha;
367 sprite_offset[0][0] = ((int64_t) sprite_ref[0][0] * (1 << alpha + rho)) +
371 ((int64_t) -vop_ref[0][1]) + (1 << (alpha + rho - 1));
372 sprite_offset[0][1] = ((int64_t) sprite_ref[0][1] * (1 << alpha + rho)) +
376 ((int64_t) -vop_ref[0][1]) + (1 << (alpha + rho - 1));
381 (int64_t) sprite_ref[0][0] - 16 * w2 + (1 << (alpha + rho + 1)));
386 (int64_t) sprite_ref[0][1] - 16 * w2 + (1 << (alpha + rho + 1)));
392 ctx->sprite_shift[0] = alpha + rho;
393 ctx->sprite_shift[1] = alpha + rho + 2;
396 min_ab = FFMIN(alpha, beta);
399 sprite_offset[0][0] = ((int64_t)sprite_ref[0][0] * (1 << (alpha + beta + rho - min_ab))) +
402 ((int64_t)1 << (alpha + beta + rho - min_ab - 1));
403 sprite_offset[0][1] = ((int64_t)sprite_ref[0][1] * (1 << (alpha + beta + rho - min_ab))) +
406 ((int64_t)1 << (alpha + beta + rho - min_ab - 1));
410 ((int64_t)1 << (alpha + beta + rho - min_ab + 1));
414 ((int64_t)1 << (alpha + beta + rho - min_ab + 1));
420 ctx->sprite_shift[0] = alpha + beta + rho - min_ab;
421 ctx->sprite_shift[1] = alpha + beta + rho - min_ab + 2;