diff options
Diffstat (limited to 'media/libstagefright/codecs/m4v_h263/dec/src/get_pred_adv_b_add.cpp')
| -rw-r--r-- | media/libstagefright/codecs/m4v_h263/dec/src/get_pred_adv_b_add.cpp | 1190 |
1 files changed, 0 insertions, 1190 deletions
diff --git a/media/libstagefright/codecs/m4v_h263/dec/src/get_pred_adv_b_add.cpp b/media/libstagefright/codecs/m4v_h263/dec/src/get_pred_adv_b_add.cpp deleted file mode 100644 index e23f23d..0000000 --- a/media/libstagefright/codecs/m4v_h263/dec/src/get_pred_adv_b_add.cpp +++ /dev/null @@ -1,1190 +0,0 @@ -/* ------------------------------------------------------------------ - * Copyright (C) 1998-2009 PacketVideo - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either - * express or implied. - * See the License for the specific language governing permissions - * and limitations under the License. - * ------------------------------------------------------------------- - */ -/* ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - Inputs: - xpos = x half-pixel of (x,y) coordinates within a VOP; motion - compensated coordinates; native type - ypos = y half-pixel of (x,y) coordinates within a VOP; motion - compensated coordinates; native type - comp = pointer to 8-bit compensated prediction values within a VOP; - computed by this module (i/o); full-pel resolution - c_prev = pointer to previous 8-bit prediction values within a VOP; - values range from (0-255); full-pel resolution - sh_d = pointer to residual values used to compensate the predicted - value; values range from (-512 to 511); full-pel resolution - width = width of the VOP in pixels (x axis); full-pel resolution - rnd1 = rounding value for case when one dimension uses half-pel - resolution - rnd2 = rounding value for case when two dimensions uses half-pel - resolution - CBP = flag indicating whether residual is all zeros - (0 -> all zeros, 1 -> not all zeros) - outside_flag = flag indicating whether motion vector is outside the - VOP (0 -> inside, 1 -> outside) - - Outputs: - returns 1 - - Local Stores/Buffers/Pointers Needed: - None - - Global Stores/Buffers/Pointers Needed: - None - - Pointers and Buffers Modified: - comp = buffer contains newly computed compensated prediction values - - Local Stores Modified: - None - - Global Stores Modified: - None - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - Compute pixel values for a block in the current VOP. The prediction - values are generated by averaging pixel values in the previous VOP; the - block position in the previous frame is computed from the current block's - motion vector. The computed pixel values are then computed by adding the - prediction values to the block residual values. - - ------------------------------------------------------------------------------- -*/ - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ -#include "mp4dec_lib.h" -#include "motion_comp.h" - -#define OSCL_DISABLE_WARNING_CONV_POSSIBLE_LOSS_OF_DATA - -int GetPredAdvancedBy0x0( - uint8 *prev, /* i */ - uint8 *pred_block, /* i */ - int width, /* i */ - int pred_width_rnd /* i */ -) -{ - uint i; /* loop variable */ - int offset, offset2; - uint32 pred_word, word1, word2; - int tmp; - - /* initialize offset to adjust pixel counter */ - /* the next row; full-pel resolution */ - offset = width - B_SIZE; /* offset for prev */ - offset2 = (pred_width_rnd >> 1) - 4; /* offset for pred_block */ - - tmp = (uint32)prev & 0x3; - pred_block -= offset2; /* preset */ - - if (tmp == 0) /* word-aligned */ - { - for (i = B_SIZE; i > 0; i--) - { - *((uint32*)(pred_block += offset2)) = *((uint32*)prev); - *((uint32*)(pred_block += 4)) = *((uint32*)(prev + 4)); - prev += width; - } - return 1; - } - else if (tmp == 1) /* first position */ - { - prev--; /* word-aligned */ - - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* read 4 bytes, b4 b3 b2 b1 */ - word2 = *((uint32*)(prev += 4)); /* read 4 bytes, b8 b7 b6 b5 */ - word1 >>= 8; /* 0 b4 b3 b2 */ - pred_word = word1 | (word2 << 24); /* b5 b4 b3 b2 */ - *((uint32*)(pred_block += offset2)) = pred_word; - - word1 = *((uint32*)(prev += 4)); /* b12 b11 b10 b9 */ - word2 >>= 8; /* 0 b8 b7 b6 */ - pred_word = word2 | (word1 << 24); /* b9 b8 b7 b6 */ - *((uint32*)(pred_block += 4)) = pred_word; - - prev += offset; - } - - return 1; - } - else if (tmp == 2) /* second position */ - { - prev -= 2; /* word1-aligned */ - - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* read 4 bytes, b4 b3 b2 b1 */ - word2 = *((uint32*)(prev += 4)); /* read 4 bytes, b8 b7 b6 b5 */ - word1 >>= 16; /* 0 0 b4 b3 */ - pred_word = word1 | (word2 << 16); /* b6 b5 b4 b3 */ - *((uint32*)(pred_block += offset2)) = pred_word; - - word1 = *((uint32*)(prev += 4)); /* b12 b11 b10 b9 */ - word2 >>= 16; /* 0 0 b8 b7 */ - pred_word = word2 | (word1 << 16); /* b10 b9 b8 b7 */ - *((uint32*)(pred_block += 4)) = pred_word; - - - prev += offset; - } - - return 1; - } - else /* third position */ - { - prev -= 3; /* word1-aligned */ - - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* read 4 bytes, b4 b3 b2 b1 */ - word2 = *((uint32*)(prev += 4)); /* read 4 bytes, b8 b7 b6 b5 */ - word1 >>= 24; /* 0 0 0 b4 */ - pred_word = word1 | (word2 << 8); /* b7 b6 b5 b4 */ - *((uint32*)(pred_block += offset2)) = pred_word; - - word1 = *((uint32*)(prev += 4)); /* b12 b11 b10 b9 */ - word2 >>= 24; /* 0 0 0 b8 */ - pred_word = word2 | (word1 << 8); /* b11 b10 b9 b8 */ - *((uint32*)(pred_block += 4)) = pred_word; - - prev += offset; - } - - return 1; - } -} - -/**************************************************************************/ -int GetPredAdvancedBy0x1( - uint8 *prev, /* i */ - uint8 *pred_block, /* i */ - int width, /* i */ - int pred_width_rnd /* i */ -) -{ - uint i; /* loop variable */ - int offset, offset2; - uint32 word1, word2, word3, word12; - int tmp; - int rnd1; - uint32 mask; - - /* initialize offset to adjust pixel counter */ - /* the next row; full-pel resolution */ - offset = width - B_SIZE; /* offset for prev */ - offset2 = (pred_width_rnd >> 1) - 4; /* offset of pred_block */ - - rnd1 = pred_width_rnd & 1; - - /* Branch based on pixel location (half-pel or full-pel) for x and y */ - pred_block -= offset2; /* preset */ - - tmp = (uint32)prev & 3; - mask = 254; - mask |= (mask << 8); - mask |= (mask << 16); /* 0xFEFEFEFE */ - - if (tmp == 0) /* word-aligned */ - { - if (rnd1 == 1) - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* b4 b3 b2 b1 */ - word2 = *((uint32*)(prev += 4)); /* b8 b7 b6 b5 */ - word12 = (word1 >> 8); /* 0 b4 b3 b2 */ - word12 |= (word2 << 24); /* b5 b4 b3 b2 */ - word3 = word1 | word12; // rnd1 = 1; otherwise word3 = word1&word12 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word1 >>= 1; - word1 = word1 + (word12 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; /* write 4 pixels */ - - word1 = *((uint32*)(prev += 4)); /* b12 b11 b10 b9 */ - word12 = (word2 >> 8); /* 0 b8 b7 b6 */ - word12 |= (word1 << 24); /* b9 b8 b7 b6 */ - word3 = word2 | word12; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word2 >>= 1; - word2 = word2 + (word12 >> 1); - word2 += word3; - *((uint32*)(pred_block += 4)) = word2; /* write 4 pixels */ - - prev += offset; - } - return 1; - } - else /* rnd1 == 0 */ - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* b4 b3 b2 b1 */ - - word2 = *((uint32*)(prev += 4)); /* b8 b7 b6 b5 */ - word12 = (word1 >> 8); /* 0 b4 b3 b2 */ - word12 |= (word2 << 24); /* b5 b4 b3 b2 */ - word3 = word1 & word12; // rnd1 = 1; otherwise word3 = word1&word12 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word1 >>= 1; - word1 = word1 + (word12 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; /* write 4 pixels */ - - word1 = *((uint32*)(prev += 4)); /* b12 b11 b10 b9 */ - word12 = (word2 >> 8); /* 0 b8 b7 b6 */ - word12 |= (word1 << 24); /* b9 b8 b7 b6 */ - word3 = word2 & word12; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word2 >>= 1; - word2 = word2 + (word12 >> 1); - word2 += word3; - *((uint32*)(pred_block += 4)) = word2; /* write 4 pixels */ - - prev += offset; - } - return 1; - } /* rnd1 */ - } - else if (tmp == 1) - { - prev--; /* word-aligned */ - if (rnd1 == 1) - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* b3 b2 b1 b0 */ - word2 = *((uint32*)(prev += 4)); /* b7 b6 b5 b4 */ - word12 = (word1 >> 8); /* 0 b3 b2 b1 */ - word1 >>= 16; /* 0 0 b3 b2 */ - word12 |= (word2 << 24); /* b4 b3 b2 b1 */ - word1 |= (word2 << 16); /* b5 b4 b3 b2 */ - word3 = word1 | word12; // rnd1 = 1; otherwise word3 = word1&word12 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word1 >>= 1; - word1 = word1 + (word12 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; /* write 4 pixels */ - - word1 = *((uint32*)(prev += 4)); /* b11 b10 b9 b8 */ - word12 = (word2 >> 8); /* 0 b7 b6 b5 */ - word2 >>= 16; /* 0 0 b7 b6 */ - word12 |= (word1 << 24); /* b8 b7 b6 b5 */ - word2 |= (word1 << 16); /* b9 b8 b7 b6 */ - word3 = word2 | word12; // rnd1 = 1; otherwise word3 = word2&word12 - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word2 >>= 1; - word2 = word2 + (word12 >> 1); - word2 += word3; - *((uint32*)(pred_block += 4)) = word2; /* write 4 pixels */ - - prev += offset; - } - return 1; - } - else /* rnd1 = 0 */ - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* b3 b2 b1 b0 */ - - word2 = *((uint32*)(prev += 4)); /* b7 b6 b5 b4 */ - word12 = (word1 >> 8); /* 0 b3 b2 b1 */ - word1 >>= 16; /* 0 0 b3 b2 */ - word12 |= (word2 << 24); /* b4 b3 b2 b1 */ - word1 |= (word2 << 16); /* b5 b4 b3 b2 */ - word3 = word1 & word12; - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word1 >>= 1; - word1 = word1 + (word12 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; /* write 4 pixels */ - - word1 = *((uint32*)(prev += 4)); /* b11 b10 b9 b8 */ - word12 = (word2 >> 8); /* 0 b7 b6 b5 */ - word2 >>= 16; /* 0 0 b7 b6 */ - word12 |= (word1 << 24); /* b8 b7 b6 b5 */ - word2 |= (word1 << 16); /* b9 b8 b7 b6 */ - word3 = word2 & word12; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word2 >>= 1; - word2 = word2 + (word12 >> 1); - word2 += word3; - *((uint32*)(pred_block += 4)) = word2; /* write 4 pixels */ - - prev += offset; - } - return 1; - } /* rnd1 */ - } - else if (tmp == 2) - { - prev -= 2; /* word-aligned */ - if (rnd1 == 1) - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* b2 b1 b0 bN1 */ - word2 = *((uint32*)(prev += 4)); /* b6 b5 b4 b3 */ - word12 = (word1 >> 16); /* 0 0 b2 b1 */ - word1 >>= 24; /* 0 0 0 b2 */ - word12 |= (word2 << 16); /* b4 b3 b2 b1 */ - word1 |= (word2 << 8); /* b5 b4 b3 b2 */ - word3 = word1 | word12; // rnd1 = 1; otherwise word3 = word1&word12 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word1 >>= 1; - word1 = word1 + (word12 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; /* write 4 pixels */ - - word1 = *((uint32*)(prev += 4)); /* b10 b9 b8 b7 */ - word12 = (word2 >> 16); /* 0 0 b6 b5 */ - word2 >>= 24; /* 0 0 0 b6 */ - word12 |= (word1 << 16); /* b8 b7 b6 b5 */ - word2 |= (word1 << 8); /* b9 b8 b7 b6 */ - word3 = word2 | word12; // rnd1 = 1; otherwise word3 = word1&word12 - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word2 >>= 1; - word2 = word2 + (word12 >> 1); - word2 += word3; - *((uint32*)(pred_block += 4)) = word2; /* write 4 pixels */ - prev += offset; - } - return 1; - } - else /* rnd1 == 0 */ - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* b2 b1 b0 bN1 */ - word2 = *((uint32*)(prev += 4)); /* b6 b5 b4 b3 */ - word12 = (word1 >> 16); /* 0 0 b2 b1 */ - word1 >>= 24; /* 0 0 0 b2 */ - word12 |= (word2 << 16); /* b4 b3 b2 b1 */ - word1 |= (word2 << 8); /* b5 b4 b3 b2 */ - word3 = word1 & word12; // rnd1 = 1; otherwise word3 = word1&word12 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word1 >>= 1; - word1 = word1 + (word12 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; /* write 4 pixels */ - - word1 = *((uint32*)(prev += 4)); /* b10 b9 b8 b7 */ - word12 = (word2 >> 16); /* 0 0 b6 b5 */ - word2 >>= 24; /* 0 0 0 b6 */ - word12 |= (word1 << 16); /* b8 b7 b6 b5 */ - word2 |= (word1 << 8); /* b9 b8 b7 b6 */ - word3 = word2 & word12; // rnd1 = 1; otherwise word3 = word1&word12 - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word2 >>= 1; - word2 = word2 + (word12 >> 1); - word2 += word3; - *((uint32*)(pred_block += 4)) = word2; /* write 4 pixels */ - prev += offset; - } - return 1; - } - } - else /* tmp = 3 */ - { - prev -= 3; /* word-aligned */ - if (rnd1 == 1) - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* b1 b0 bN1 bN2 */ - word2 = *((uint32*)(prev += 4)); /* b5 b4 b3 b2 */ - word12 = (word1 >> 24); /* 0 0 0 b1 */ - word12 |= (word2 << 8); /* b4 b3 b2 b1 */ - word1 = word2; - word3 = word1 | word12; // rnd1 = 1; otherwise word3 = word1&word12 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word1 >>= 1; - word1 = word1 + (word12 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; /* write 4 pixels */ - - word1 = *((uint32*)(prev += 4)); /* b9 b8 b7 b6 */ - word12 = (word2 >> 24); /* 0 0 0 b5 */ - word12 |= (word1 << 8); /* b8 b7 b6 b5 */ - word2 = word1; /* b9 b8 b7 b6 */ - word3 = word2 | word12; // rnd1 = 1; otherwise word3 = word1&word12 - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word2 >>= 1; - word2 = word2 + (word12 >> 1); - word2 += word3; - *((uint32*)(pred_block += 4)) = word2; /* write 4 pixels */ - prev += offset; - } - return 1; - } - else - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)prev); /* b1 b0 bN1 bN2 */ - word2 = *((uint32*)(prev += 4)); /* b5 b4 b3 b2 */ - word12 = (word1 >> 24); /* 0 0 0 b1 */ - word12 |= (word2 << 8); /* b4 b3 b2 b1 */ - word1 = word2; - word3 = word1 & word12; // rnd1 = 1; otherwise word3 = word1&word12 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word1 >>= 1; - word1 = word1 + (word12 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; /* write 4 pixels */ - - word1 = *((uint32*)(prev += 4)); /* b9 b8 b7 b6 */ - word12 = (word2 >> 24); /* 0 0 0 b5 */ - word12 |= (word1 << 8); /* b8 b7 b6 b5 */ - word2 = word1; /* b9 b8 b7 b6 */ - word3 = word2 & word12; // rnd1 = 1; otherwise word3 = word1&word12 - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 &= mask; - word2 >>= 1; - word2 = word2 + (word12 >> 1); - word2 += word3; - *((uint32*)(pred_block += 4)) = word2; /* write 4 pixels */ - prev += offset; - } - return 1; - } - } -} - -/**************************************************************************/ -int GetPredAdvancedBy1x0( - uint8 *prev, /* i */ - uint8 *pred_block, /* i */ - int width, /* i */ - int pred_width_rnd /* i */ -) -{ - uint i; /* loop variable */ - int offset, offset2; - uint32 word1, word2, word3, word12, word22; - int tmp; - int rnd1; - uint32 mask; - - /* initialize offset to adjust pixel counter */ - /* the next row; full-pel resolution */ - offset = width - B_SIZE; /* offset for prev */ - offset2 = (pred_width_rnd >> 1) - 4; /* offset for pred_block */ - - rnd1 = pred_width_rnd & 1; - - /* Branch based on pixel location (half-pel or full-pel) for x and y */ - pred_block -= offset2; /* preset */ - - tmp = (uint32)prev & 3; - mask = 254; - mask |= (mask << 8); - mask |= (mask << 16); /* 0xFEFEFEFE */ - - if (tmp == 0) /* word-aligned */ - { - prev -= 4; - if (rnd1 == 1) - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)(prev += 4)); - word2 = *((uint32*)(prev + width)); - word3 = word1 | word2; // rnd1 = 1; otherwise word3 = word1&word2 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word2 &= mask; - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; - word1 = *((uint32*)(prev += 4)); - word2 = *((uint32*)(prev + width)); - word3 = word1 | word2; // rnd1 = 1; otherwise word3 = word1&word2 - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word2 &= mask; - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += 4)) = word1; - - prev += offset; - } - return 1; - } - else /* rnd1 = 0 */ - { - for (i = B_SIZE; i > 0; i--) - { - word1 = *((uint32*)(prev += 4)); - word2 = *((uint32*)(prev + width)); - word3 = word1 & word2; /* rnd1 = 0; */ - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word2 &= mask; - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += offset2)) = word1; - word1 = *((uint32*)(prev += 4)); - word2 = *((uint32*)(prev + width)); - word3 = word1 & word2; /* rnd1 = 0; */ - word1 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word2 &= mask; - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += 4)) = word1; - - prev += offset; - } - return 1; - } - } - else if (tmp == 1) - { - prev--; /* word-aligned */ - if (rnd1 == 1) - { - for (i = B_SIZE; i > 0; i--) - { - word12 = *((uint32*)prev); /* read b4 b3 b2 b1 */ - word22 = *((uint32*)(prev + width)); - - word1 = *((uint32*)(prev += 4)); /* read b8 b7 b6 b5 */ - word2 = *((uint32*)(prev + width)); - word12 >>= 8; /* 0 b4 b3 b2 */ - word22 >>= 8; - word12 = word12 | (word1 << 24); /* b5 b4 b3 b2 */ - word22 = word22 | (word2 << 24); - word3 = word12 | word22; - word12 &= mask; - word22 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 >>= 1; - word12 = word12 + (word22 >> 1); - word12 += word3; - *((uint32*)(pred_block += offset2)) = word12; - - word12 = *((uint32*)(prev += 4)); /* read b12 b11 b10 b9 */ - word22 = *((uint32*)(prev + width)); - word1 >>= 8; /* 0 b8 b7 b6 */ - word2 >>= 8; - word1 = word1 | (word12 << 24); /* b9 b8 b7 b6 */ - word2 = word2 | (word22 << 24); - word3 = word1 | word2; - word1 &= mask; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += 4)) = word1; - prev += offset; - } - return 1; - } - else /* rnd1 = 0 */ - { - for (i = B_SIZE; i > 0; i--) - { - word12 = *((uint32*)prev); /* read b4 b3 b2 b1 */ - word22 = *((uint32*)(prev + width)); - - word1 = *((uint32*)(prev += 4)); /* read b8 b7 b6 b5 */ - word2 = *((uint32*)(prev + width)); - word12 >>= 8; /* 0 b4 b3 b2 */ - word22 >>= 8; - word12 = word12 | (word1 << 24); /* b5 b4 b3 b2 */ - word22 = word22 | (word2 << 24); - word3 = word12 & word22; - word12 &= mask; - word22 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 >>= 1; - word12 = word12 + (word22 >> 1); - word12 += word3; - *((uint32*)(pred_block += offset2)) = word12; - - word12 = *((uint32*)(prev += 4)); /* read b12 b11 b10 b9 */ - word22 = *((uint32*)(prev + width)); - word1 >>= 8; /* 0 b8 b7 b6 */ - word2 >>= 8; - word1 = word1 | (word12 << 24); /* b9 b8 b7 b6 */ - word2 = word2 | (word22 << 24); - word3 = word1 & word2; - word1 &= mask; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += 4)) = word1; - prev += offset; - } - return 1; - } - } - else if (tmp == 2) - { - prev -= 2; /* word-aligned */ - if (rnd1 == 1) - { - for (i = B_SIZE; i > 0; i--) - { - word12 = *((uint32*)prev); /* read b4 b3 b2 b1 */ - word22 = *((uint32*)(prev + width)); - - word1 = *((uint32*)(prev += 4)); /* read b8 b7 b6 b5 */ - word2 = *((uint32*)(prev + width)); - word12 >>= 16; /* 0 0 b4 b3 */ - word22 >>= 16; - word12 = word12 | (word1 << 16); /* b6 b5 b4 b3 */ - word22 = word22 | (word2 << 16); - word3 = word12 | word22; - word12 &= mask; - word22 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 >>= 1; - word12 = word12 + (word22 >> 1); - word12 += word3; - *((uint32*)(pred_block += offset2)) = word12; - - word12 = *((uint32*)(prev += 4)); /* read b12 b11 b10 b9 */ - word22 = *((uint32*)(prev + width)); - word1 >>= 16; /* 0 0 b8 b7 */ - word2 >>= 16; - word1 = word1 | (word12 << 16); /* b10 b9 b8 b7 */ - word2 = word2 | (word22 << 16); - word3 = word1 | word2; - word1 &= mask; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += 4)) = word1; - prev += offset; - } - return 1; - } - else /* rnd1 = 0 */ - { - for (i = B_SIZE; i > 0; i--) - { - word12 = *((uint32*)prev); /* read b4 b3 b2 b1 */ - word22 = *((uint32*)(prev + width)); - - word1 = *((uint32*)(prev += 4)); /* read b8 b7 b6 b5 */ - word2 = *((uint32*)(prev + width)); - word12 >>= 16; /* 0 0 b4 b3 */ - word22 >>= 16; - word12 = word12 | (word1 << 16); /* b6 b5 b4 b3 */ - word22 = word22 | (word2 << 16); - word3 = word12 & word22; - word12 &= mask; - word22 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 >>= 1; - word12 = word12 + (word22 >> 1); - word12 += word3; - *((uint32*)(pred_block += offset2)) = word12; - - word12 = *((uint32*)(prev += 4)); /* read b12 b11 b10 b9 */ - word22 = *((uint32*)(prev + width)); - word1 >>= 16; /* 0 0 b8 b7 */ - word2 >>= 16; - word1 = word1 | (word12 << 16); /* b10 b9 b8 b7 */ - word2 = word2 | (word22 << 16); - word3 = word1 & word2; - word1 &= mask; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += 4)) = word1; - prev += offset; - } - - return 1; - } - } - else /* tmp == 3 */ - { - prev -= 3; /* word-aligned */ - if (rnd1 == 1) - { - for (i = B_SIZE; i > 0; i--) - { - word12 = *((uint32*)prev); /* read b4 b3 b2 b1 */ - word22 = *((uint32*)(prev + width)); - - word1 = *((uint32*)(prev += 4)); /* read b8 b7 b6 b5 */ - word2 = *((uint32*)(prev + width)); - word12 >>= 24; /* 0 0 0 b4 */ - word22 >>= 24; - word12 = word12 | (word1 << 8); /* b7 b6 b5 b4 */ - word22 = word22 | (word2 << 8); - word3 = word12 | word22; - word12 &= mask; - word22 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 >>= 1; - word12 = word12 + (word22 >> 1); - word12 += word3; - *((uint32*)(pred_block += offset2)) = word12; - - word12 = *((uint32*)(prev += 4)); /* read b12 b11 b10 b9 */ - word22 = *((uint32*)(prev + width)); - word1 >>= 24; /* 0 0 0 b8 */ - word2 >>= 24; - word1 = word1 | (word12 << 8); /* b11 b10 b9 b8 */ - word2 = word2 | (word22 << 8); - word3 = word1 | word2; - word1 &= mask; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += 4)) = word1; - prev += offset; - } - return 1; - } - else /* rnd1 = 0 */ - { - for (i = B_SIZE; i > 0; i--) - { - word12 = *((uint32*)prev); /* read b4 b3 b2 b1 */ - word22 = *((uint32*)(prev + width)); - - word1 = *((uint32*)(prev += 4)); /* read b8 b7 b6 b5 */ - word2 = *((uint32*)(prev + width)); - word12 >>= 24; /* 0 0 0 b4 */ - word22 >>= 24; - word12 = word12 | (word1 << 8); /* b7 b6 b5 b4 */ - word22 = word22 | (word2 << 8); - word3 = word12 & word22; - word12 &= mask; - word22 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word12 >>= 1; - word12 = word12 + (word22 >> 1); - word12 += word3; - *((uint32*)(pred_block += offset2)) = word12; - - word12 = *((uint32*)(prev += 4)); /* read b12 b11 b10 b9 */ - word22 = *((uint32*)(prev + width)); - word1 >>= 24; /* 0 0 0 b8 */ - word2 >>= 24; - word1 = word1 | (word12 << 8); /* b11 b10 b9 b8 */ - word2 = word2 | (word22 << 8); - word3 = word1 & word2; - word1 &= mask; - word2 &= mask; - word3 &= (~mask); /* 0x1010101, check last bit */ - word1 >>= 1; - word1 = word1 + (word2 >> 1); - word1 += word3; - *((uint32*)(pred_block += 4)) = word1; - prev += offset; - } - return 1; - } /* rnd */ - } /* tmp */ -} - -/**********************************************************************************/ -int GetPredAdvancedBy1x1( - uint8 *prev, /* i */ - uint8 *pred_block, /* i */ - int width, /* i */ - int pred_width_rnd /* i */ -) -{ - uint i; /* loop variable */ - int offset, offset2; - uint32 x1, x2, x1m, x2m, y1, y2, y1m, y2m; /* new way */ - int tmp; - int rnd1, rnd2; - uint32 mask; - - /* initialize offset to adjust pixel counter */ - /* the next row; full-pel resolution */ - offset = width - B_SIZE; /* offset for prev */ - offset2 = (pred_width_rnd >> 1) - 8; /* offset for pred_block */ - - rnd1 = pred_width_rnd & 1; - - rnd2 = rnd1 + 1; - rnd2 |= (rnd2 << 8); - rnd2 |= (rnd2 << 16); - - mask = 0x3F; - mask |= (mask << 8); - mask |= (mask << 16); /* 0x3f3f3f3f */ - - tmp = (uint32)prev & 3; - - pred_block -= 4; /* preset */ - - if (tmp == 0) /* word-aligned */ - { - for (i = B_SIZE; i > 0; i--) - { - x1 = *((uint32*)prev); /* load a3 a2 a1 a0 */ - x2 = *((uint32*)(prev + width)); /* load b3 b2 b1 b0, another line */ - y1 = *((uint32*)(prev += 4)); /* a7 a6 a5 a4 */ - y2 = *((uint32*)(prev + width)); /* b7 b6 b5 b4 */ - - x1m = (x1 >> 2) & mask; /* zero out last 2 bits */ - x2m = (x2 >> 2) & mask; - x1 = x1 ^(x1m << 2); - x2 = x2 ^(x2m << 2); - x1m += x2m; - x1 += x2; - - /* x2m, x2 free */ - y1m = (y1 >> 2) & mask; /* zero out last 2 bits */ - y2m = (y2 >> 2) & mask; - y1 = y1 ^(y1m << 2); - y2 = y2 ^(y2m << 2); - y1m += y2m; - y1 += y2; - - /* y2m, y2 free */ - /* x2m, x2 free */ - x2 = *((uint32*)(prev += 4)); /* a11 a10 a9 a8 */ - y2 = *((uint32*)(prev + width)); /* b11 b10 b9 b8 */ - x2m = (x2 >> 2) & mask; - y2m = (y2 >> 2) & mask; - x2 = x2 ^(x2m << 2); - y2 = y2 ^(y2m << 2); - x2m += y2m; - x2 += y2; - /* y2m, y2 free */ - - /* now operate on x1m, x1, y1m, y1, x2m, x2 */ - /* x1m = a3+b3, a2+b2, a1+b1, a0+b0 */ - /* y1m = a7+b7, a6+b6, a5+b5, a4+b4 */ - /* x2m = a11+b11, a10+b10, a9+b9, a8+b8 */ - /* x1, y1, x2 */ - - y2m = x1m >> 8; - y2 = x1 >> 8; - y2m |= (y1m << 24); /* a4+b4, a3+b3, a2+b2, a1+b1 */ - y2 |= (y1 << 24); - x1m += y2m; /* a3+b3+a4+b4, ....., a0+b0+a1+b1 */ - x1 += y2; - x1 += rnd2; - x1 &= (mask << 2); - x1m += (x1 >> 2); - *((uint32*)(pred_block += 4)) = x1m; /* save x1m */ - - y2m = y1m >> 8; - y2 = y1 >> 8; - y2m |= (x2m << 24); /* a8+b8, a7+b7, a6+b6, a5+b5 */ - y2 |= (x2 << 24); - y1m += y2m; /* a7+b7+a8+b8, ....., a4+b4+a5+b5 */ - y1 += y2; - y1 += rnd2; - y1 &= (mask << 2); - y1m += (y1 >> 2); - *((uint32*)(pred_block += 4)) = y1m; /* save y1m */ - - pred_block += offset2; - prev += offset; - } - - return 1; - } - else if (tmp == 1) - { - prev--; /* to word-aligned */ - for (i = B_SIZE; i > 0; i--) - { - x1 = *((uint32*)prev); /* load a3 a2 a1 a0 */ - x2 = *((uint32*)(prev + width)); /* load b3 b2 b1 b0, another line */ - y1 = *((uint32*)(prev += 4)); /* a7 a6 a5 a4 */ - y2 = *((uint32*)(prev + width)); /* b7 b6 b5 b4 */ - - x1m = (x1 >> 2) & mask; /* zero out last 2 bits */ - x2m = (x2 >> 2) & mask; - x1 = x1 ^(x1m << 2); - x2 = x2 ^(x2m << 2); - x1m += x2m; - x1 += x2; - - /* x2m, x2 free */ - y1m = (y1 >> 2) & mask; /* zero out last 2 bits */ - y2m = (y2 >> 2) & mask; - y1 = y1 ^(y1m << 2); - y2 = y2 ^(y2m << 2); - y1m += y2m; - y1 += y2; - - /* y2m, y2 free */ - /* x2m, x2 free */ - x2 = *((uint32*)(prev += 4)); /* a11 a10 a9 a8 */ - y2 = *((uint32*)(prev + width)); /* b11 b10 b9 b8 */ - x2m = (x2 >> 2) & mask; - y2m = (y2 >> 2) & mask; - x2 = x2 ^(x2m << 2); - y2 = y2 ^(y2m << 2); - x2m += y2m; - x2 += y2; - /* y2m, y2 free */ - - /* now operate on x1m, x1, y1m, y1, x2m, x2 */ - /* x1m = a3+b3, a2+b2, a1+b1, a0+b0 */ - /* y1m = a7+b7, a6+b6, a5+b5, a4+b4 */ - /* x2m = a11+b11, a10+b10, a9+b9, a8+b8 */ - /* x1, y1, x2 */ - - x1m >>= 8 ; - x1 >>= 8; - x1m |= (y1m << 24); /* a4+b4, a3+b3, a2+b2, a1+b1 */ - x1 |= (y1 << 24); - y2m = (y1m << 16); - y2 = (y1 << 16); - y2m |= (x1m >> 8); /* a5+b5, a4+b4, a3+b3, a2+b2 */ - y2 |= (x1 >> 8); - x1 += rnd2; - x1m += y2m; /* a4+b4+a5+b5, ....., a1+b1+a2+b2 */ - x1 += y2; - x1 &= (mask << 2); - x1m += (x1 >> 2); - *((uint32*)(pred_block += 4)) = x1m; /* save x1m */ - - y1m >>= 8; - y1 >>= 8; - y1m |= (x2m << 24); /* a8+b8, a7+b7, a6+b6, a5+b5 */ - y1 |= (x2 << 24); - y2m = (x2m << 16); - y2 = (x2 << 16); - y2m |= (y1m >> 8); /* a9+b9, a8+b8, a7+b7, a6+b6,*/ - y2 |= (y1 >> 8); - y1 += rnd2; - y1m += y2m; /* a8+b8+a9+b9, ....., a5+b5+a6+b6 */ - y1 += y2; - y1 &= (mask << 2); - y1m += (y1 >> 2); - *((uint32*)(pred_block += 4)) = y1m; /* save y1m */ - - pred_block += offset2; - prev += offset; - } - return 1; - } - else if (tmp == 2) - { - prev -= 2; /* to word-aligned */ - for (i = B_SIZE; i > 0; i--) - { - x1 = *((uint32*)prev); /* load a3 a2 a1 a0 */ - x2 = *((uint32*)(prev + width)); /* load b3 b2 b1 b0, another line */ - y1 = *((uint32*)(prev += 4)); /* a7 a6 a5 a4 */ - y2 = *((uint32*)(prev + width)); /* b7 b6 b5 b4 */ - - x1m = (x1 >> 2) & mask; /* zero out last 2 bits */ - x2m = (x2 >> 2) & mask; - x1 = x1 ^(x1m << 2); - x2 = x2 ^(x2m << 2); - x1m += x2m; - x1 += x2; - - /* x2m, x2 free */ - y1m = (y1 >> 2) & mask; /* zero out last 2 bits */ - y2m = (y2 >> 2) & mask; - y1 = y1 ^(y1m << 2); - y2 = y2 ^(y2m << 2); - y1m += y2m; - y1 += y2; - - /* y2m, y2 free */ - /* x2m, x2 free */ - x2 = *((uint32*)(prev += 4)); /* a11 a10 a9 a8 */ - y2 = *((uint32*)(prev + width)); /* b11 b10 b9 b8 */ - x2m = (x2 >> 2) & mask; - y2m = (y2 >> 2) & mask; - x2 = x2 ^(x2m << 2); - y2 = y2 ^(y2m << 2); - x2m += y2m; - x2 += y2; - /* y2m, y2 free */ - - /* now operate on x1m, x1, y1m, y1, x2m, x2 */ - /* x1m = a3+b3, a2+b2, a1+b1, a0+b0 */ - /* y1m = a7+b7, a6+b6, a5+b5, a4+b4 */ - /* x2m = a11+b11, a10+b10, a9+b9, a8+b8 */ - /* x1, y1, x2 */ - - x1m >>= 16 ; - x1 >>= 16; - x1m |= (y1m << 16); /* a5+b5, a4+b4, a3+b3, a2+b2 */ - x1 |= (y1 << 16); - y2m = (y1m << 8); - y2 = (y1 << 8); - y2m |= (x1m >> 8); /* a6+b6, a5+b5, a4+b4, a3+b3 */ - y2 |= (x1 >> 8); - x1 += rnd2; - x1m += y2m; /* a5+b5+a6+b6, ....., a2+b2+a3+b3 */ - x1 += y2; - x1 &= (mask << 2); - x1m += (x1 >> 2); - *((uint32*)(pred_block += 4)) = x1m; /* save x1m */ - - y1m >>= 16; - y1 >>= 16; - y1m |= (x2m << 16); /* a9+b9, a8+b8, a7+b7, a6+b6 */ - y1 |= (x2 << 16); - y2m = (x2m << 8); - y2 = (x2 << 8); - y2m |= (y1m >> 8); /* a10+b10, a9+b9, a8+b8, a7+b7,*/ - y2 |= (y1 >> 8); - y1 += rnd2; - y1m += y2m; /* a9+b9+a10+b10, ....., a6+b6+a7+b7 */ - y1 += y2; - y1 &= (mask << 2); - y1m += (y1 >> 2); - *((uint32*)(pred_block += 4)) = y1m; /* save y1m */ - - pred_block += offset2; - prev += offset; - } - return 1; - } - else /* tmp == 3 */ - { - prev -= 3; /* to word-aligned */ - for (i = B_SIZE; i > 0; i--) - { - x1 = *((uint32*)prev); /* load a3 a2 a1 a0 */ - x2 = *((uint32*)(prev + width)); /* load b3 b2 b1 b0, another line */ - y1 = *((uint32*)(prev += 4)); /* a7 a6 a5 a4 */ - y2 = *((uint32*)(prev + width)); /* b7 b6 b5 b4 */ - - x1m = (x1 >> 2) & mask; /* zero out last 2 bits */ - x2m = (x2 >> 2) & mask; - x1 = x1 ^(x1m << 2); - x2 = x2 ^(x2m << 2); - x1m += x2m; - x1 += x2; - - /* x2m, x2 free */ - y1m = (y1 >> 2) & mask; /* zero out last 2 bits */ - y2m = (y2 >> 2) & mask; - y1 = y1 ^(y1m << 2); - y2 = y2 ^(y2m << 2); - y1m += y2m; - y1 += y2; - - /* y2m, y2 free */ - /* x2m, x2 free */ - x2 = *((uint32*)(prev += 4)); /* a11 a10 a9 a8 */ - y2 = *((uint32*)(prev + width)); /* b11 b10 b9 b8 */ - x2m = (x2 >> 2) & mask; - y2m = (y2 >> 2) & mask; - x2 = x2 ^(x2m << 2); - y2 = y2 ^(y2m << 2); - x2m += y2m; - x2 += y2; - /* y2m, y2 free */ - - /* now operate on x1m, x1, y1m, y1, x2m, x2 */ - /* x1m = a3+b3, a2+b2, a1+b1, a0+b0 */ - /* y1m = a7+b7, a6+b6, a5+b5, a4+b4 */ - /* x2m = a11+b11, a10+b10, a9+b9, a8+b8 */ - /* x1, y1, x2 */ - - x1m >>= 24 ; - x1 >>= 24; - x1m |= (y1m << 8); /* a6+b6, a5+b5, a4+b4, a3+b3 */ - x1 |= (y1 << 8); - - x1m += y1m; /* a6+b6+a7+b7, ....., a3+b3+a4+b4 */ - x1 += y1; - x1 += rnd2; - x1 &= (mask << 2); - x1m += (x1 >> 2); - *((uint32*)(pred_block += 4)) = x1m; /* save x1m */ - - y1m >>= 24; - y1 >>= 24; - y1m |= (x2m << 8); /* a10+b10, a9+b9, a8+b8, a7+b7 */ - y1 |= (x2 << 8); - y1m += x2m; /* a10+b10+a11+b11, ....., a7+b7+a8+b8 */ - y1 += x2; - y1 += rnd2; - y1 &= (mask << 2); - y1m += (y1 >> 2); - *((uint32*)(pred_block += 4)) = y1m; /* save y1m */ - - pred_block += offset2; - prev += offset; - } - return 1; - } -} - - |