Lines Matching defs:alpha_code
151 const uint16_t alpha_code = AV_RL16(block + 2 * y);
154 alpha_values[0] = ((alpha_code >> 0) & 0x0F) * 17;
155 alpha_values[1] = ((alpha_code >> 4) & 0x0F) * 17;
156 alpha_values[2] = ((alpha_code >> 8) & 0x0F) * 17;
157 alpha_values[3] = ((alpha_code >> 12) & 0x0F) * 17;
271 int alpha_code = alpha_indices[x + y * 4];
275 if (alpha_code == 0) {
277 } else if (alpha_code == 1) {
281 alpha = (uint8_t) (((8 - alpha_code) * alpha0 +
282 (alpha_code - 1) * alpha1) / 7);
284 if (alpha_code == 6) {
286 } else if (alpha_code == 7) {
289 alpha = (uint8_t) (((6 - alpha_code) * alpha0 +
290 (alpha_code - 1) * alpha1) / 5);