mirror of https://git.ffmpeg.org/ffmpeg.git
indeo3: use unaligned reads on reference blocks.
They are not guaranteed to be aligned. Fixes Bug 503. CC:libav-stable@libav.org
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70f9661542
commit
a97d8cc16e
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@ -276,10 +276,10 @@ static int copy_cell(Indeo3DecodeContext *ctx, Plane *plane, Cell *cell)
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/* Average 4/8 pixels at once without rounding using SWAR */
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/* Average 4/8 pixels at once without rounding using SWAR */
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#define AVG_32(dst, src, ref) \
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#define AVG_32(dst, src, ref) \
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AV_WN32A(dst, ((AV_RN32A(src) + AV_RN32A(ref)) >> 1) & 0x7F7F7F7FUL)
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AV_WN32A(dst, ((AV_RN32(src) + AV_RN32(ref)) >> 1) & 0x7F7F7F7FUL)
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#define AVG_64(dst, src, ref) \
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#define AVG_64(dst, src, ref) \
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AV_WN64A(dst, ((AV_RN64A(src) + AV_RN64A(ref)) >> 1) & 0x7F7F7F7F7F7F7F7FULL)
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AV_WN64A(dst, ((AV_RN64(src) + AV_RN64(ref)) >> 1) & 0x7F7F7F7F7F7F7F7FULL)
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/*
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/*
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@ -338,7 +338,7 @@ if (*data_ptr >= last_ptr) \
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ctx->hdsp.put_pixels_tab[2][0](dst, ref, row_offset, 4 << v_zoom)
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ctx->hdsp.put_pixels_tab[2][0](dst, ref, row_offset, 4 << v_zoom)
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#define RLE_BLOCK_COPY_8 \
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#define RLE_BLOCK_COPY_8 \
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pix64 = AV_RN64A(ref);\
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pix64 = AV_RN64(ref);\
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if (is_first_row) {/* special prediction case: top line of a cell */\
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if (is_first_row) {/* special prediction case: top line of a cell */\
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pix64 = replicate64(pix64);\
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pix64 = replicate64(pix64);\
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fill_64(dst + row_offset, pix64, 7, row_offset);\
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fill_64(dst + row_offset, pix64, 7, row_offset);\
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@ -350,7 +350,7 @@ if (*data_ptr >= last_ptr) \
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ctx->hdsp.put_pixels_tab[2][0](dst, ref, row_offset, num_lines << v_zoom)
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ctx->hdsp.put_pixels_tab[2][0](dst, ref, row_offset, num_lines << v_zoom)
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#define RLE_LINES_COPY_M10 \
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#define RLE_LINES_COPY_M10 \
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pix64 = AV_RN64A(ref);\
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pix64 = AV_RN64(ref);\
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if (is_top_of_cell) {\
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if (is_top_of_cell) {\
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pix64 = replicate64(pix64);\
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pix64 = replicate64(pix64);\
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fill_64(dst + row_offset, pix64, (num_lines << 1) - 1, row_offset);\
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fill_64(dst + row_offset, pix64, (num_lines << 1) - 1, row_offset);\
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@ -360,12 +360,12 @@ if (*data_ptr >= last_ptr) \
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#define APPLY_DELTA_4 \
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#define APPLY_DELTA_4 \
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AV_WN16A(dst + line_offset ,\
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AV_WN16A(dst + line_offset ,\
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(AV_RN16A(ref ) + delta_tab->deltas[dyad1]) & 0x7F7F);\
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(AV_RN16(ref ) + delta_tab->deltas[dyad1]) & 0x7F7F);\
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AV_WN16A(dst + line_offset + 2,\
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AV_WN16A(dst + line_offset + 2,\
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(AV_RN16A(ref + 2) + delta_tab->deltas[dyad2]) & 0x7F7F);\
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(AV_RN16(ref + 2) + delta_tab->deltas[dyad2]) & 0x7F7F);\
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if (mode >= 3) {\
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if (mode >= 3) {\
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if (is_top_of_cell && !cell->ypos) {\
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if (is_top_of_cell && !cell->ypos) {\
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AV_COPY32(dst, dst + row_offset);\
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AV_COPY32U(dst, dst + row_offset);\
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} else {\
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} else {\
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AVG_32(dst, ref, dst + row_offset);\
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AVG_32(dst, ref, dst + row_offset);\
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}\
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}\
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@ -375,20 +375,20 @@ if (*data_ptr >= last_ptr) \
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/* apply two 32-bit VQ deltas to next even line */\
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/* apply two 32-bit VQ deltas to next even line */\
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if (is_top_of_cell) { \
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if (is_top_of_cell) { \
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AV_WN32A(dst + row_offset , \
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AV_WN32A(dst + row_offset , \
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(replicate32(AV_RN32A(ref )) + delta_tab->deltas_m10[dyad1]) & 0x7F7F7F7F);\
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(replicate32(AV_RN32(ref )) + delta_tab->deltas_m10[dyad1]) & 0x7F7F7F7F);\
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AV_WN32A(dst + row_offset + 4, \
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AV_WN32A(dst + row_offset + 4, \
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(replicate32(AV_RN32A(ref + 4)) + delta_tab->deltas_m10[dyad2]) & 0x7F7F7F7F);\
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(replicate32(AV_RN32(ref + 4)) + delta_tab->deltas_m10[dyad2]) & 0x7F7F7F7F);\
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} else { \
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} else { \
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AV_WN32A(dst + row_offset , \
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AV_WN32A(dst + row_offset , \
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(AV_RN32A(ref ) + delta_tab->deltas_m10[dyad1]) & 0x7F7F7F7F);\
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(AV_RN32(ref ) + delta_tab->deltas_m10[dyad1]) & 0x7F7F7F7F);\
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AV_WN32A(dst + row_offset + 4, \
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AV_WN32A(dst + row_offset + 4, \
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(AV_RN32A(ref + 4) + delta_tab->deltas_m10[dyad2]) & 0x7F7F7F7F);\
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(AV_RN32(ref + 4) + delta_tab->deltas_m10[dyad2]) & 0x7F7F7F7F);\
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} \
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} \
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/* odd lines are not coded but rather interpolated/replicated */\
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/* odd lines are not coded but rather interpolated/replicated */\
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/* first line of the cell on the top of image? - replicate */\
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/* first line of the cell on the top of image? - replicate */\
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/* otherwise - interpolate */\
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/* otherwise - interpolate */\
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if (is_top_of_cell && !cell->ypos) {\
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if (is_top_of_cell && !cell->ypos) {\
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AV_COPY64(dst, dst + row_offset);\
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AV_COPY64U(dst, dst + row_offset);\
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} else \
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} else \
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AVG_64(dst, ref, dst + row_offset);
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AVG_64(dst, ref, dst + row_offset);
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@ -396,22 +396,22 @@ if (*data_ptr >= last_ptr) \
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#define APPLY_DELTA_1011_INTER \
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#define APPLY_DELTA_1011_INTER \
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if (mode == 10) { \
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if (mode == 10) { \
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AV_WN32A(dst , \
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AV_WN32A(dst , \
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(AV_RN32A(dst ) + delta_tab->deltas_m10[dyad1]) & 0x7F7F7F7F);\
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(AV_RN32(dst ) + delta_tab->deltas_m10[dyad1]) & 0x7F7F7F7F);\
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AV_WN32A(dst + 4 , \
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AV_WN32A(dst + 4 , \
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(AV_RN32A(dst + 4 ) + delta_tab->deltas_m10[dyad2]) & 0x7F7F7F7F);\
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(AV_RN32(dst + 4 ) + delta_tab->deltas_m10[dyad2]) & 0x7F7F7F7F);\
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AV_WN32A(dst + row_offset , \
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AV_WN32A(dst + row_offset , \
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(AV_RN32A(dst + row_offset ) + delta_tab->deltas_m10[dyad1]) & 0x7F7F7F7F);\
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(AV_RN32(dst + row_offset ) + delta_tab->deltas_m10[dyad1]) & 0x7F7F7F7F);\
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AV_WN32A(dst + row_offset + 4, \
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AV_WN32A(dst + row_offset + 4, \
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(AV_RN32A(dst + row_offset + 4) + delta_tab->deltas_m10[dyad2]) & 0x7F7F7F7F);\
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(AV_RN32(dst + row_offset + 4) + delta_tab->deltas_m10[dyad2]) & 0x7F7F7F7F);\
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} else { \
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} else { \
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AV_WN16A(dst , \
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AV_WN16A(dst , \
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(AV_RN16A(dst ) + delta_tab->deltas[dyad1]) & 0x7F7F);\
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(AV_RN16(dst ) + delta_tab->deltas[dyad1]) & 0x7F7F);\
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AV_WN16A(dst + 2 , \
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AV_WN16A(dst + 2 , \
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(AV_RN16A(dst + 2 ) + delta_tab->deltas[dyad2]) & 0x7F7F);\
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(AV_RN16(dst + 2 ) + delta_tab->deltas[dyad2]) & 0x7F7F);\
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AV_WN16A(dst + row_offset , \
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AV_WN16A(dst + row_offset , \
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(AV_RN16A(dst + row_offset ) + delta_tab->deltas[dyad1]) & 0x7F7F);\
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(AV_RN16(dst + row_offset ) + delta_tab->deltas[dyad1]) & 0x7F7F);\
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AV_WN16A(dst + row_offset + 2, \
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AV_WN16A(dst + row_offset + 2, \
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(AV_RN16A(dst + row_offset + 2) + delta_tab->deltas[dyad2]) & 0x7F7F);\
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(AV_RN16(dst + row_offset + 2) + delta_tab->deltas[dyad2]) & 0x7F7F);\
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}
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}
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