Lines Matching refs:alpha_code
151 const uint16_t alpha_code = AV_RL16(block + 2 * y); in dxt3_block_internal() local
154 alpha_values[0] = ((alpha_code >> 0) & 0x0F) * 17; in dxt3_block_internal()
155 alpha_values[1] = ((alpha_code >> 4) & 0x0F) * 17; in dxt3_block_internal()
156 alpha_values[2] = ((alpha_code >> 8) & 0x0F) * 17; in dxt3_block_internal()
157 alpha_values[3] = ((alpha_code >> 12) & 0x0F) * 17; in dxt3_block_internal()
271 int alpha_code = alpha_indices[x + y * 4]; in dxt5_block_internal() local
275 if (alpha_code == 0) { in dxt5_block_internal()
277 } else if (alpha_code == 1) { in dxt5_block_internal()
281 alpha = (uint8_t) (((8 - alpha_code) * alpha0 + in dxt5_block_internal()
282 (alpha_code - 1) * alpha1) / 7); in dxt5_block_internal()
284 if (alpha_code == 6) { in dxt5_block_internal()
286 } else if (alpha_code == 7) { in dxt5_block_internal()
289 alpha = (uint8_t) (((6 - alpha_code) * alpha0 + in dxt5_block_internal()
290 (alpha_code - 1) * alpha1) / 5); in dxt5_block_internal()