mirror of
https://git.code.sf.net/p/libpng/code.git
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Made VSX code pedantic strict C90 compliant
Fixed signed/unsigned comparations, png_byte and summations. Also fixed combound literals which are permited by C90.
This commit is contained in:
Vadim Barkov
parent
6f6c396604
commit
a343882c74
@ -39,7 +39,7 @@
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*/
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#define vsx_declare_common_vars(row_info,row,prev_row,offset) \
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png_size_t i;\
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png_byte i;\
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png_bytep rp = row + offset;\
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png_const_bytep pp = prev_row;\
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png_size_t unaligned_top = 16 - (((png_size_t)rp % 16));\
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@ -100,69 +100,69 @@ void png_read_filter_row_up_vsx(png_row_infop row_info, png_bytep row,
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}
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#define VSX_LEFTSHIFTED1_4 (vector unsigned char){16,16,16,16, 0, 1, 2, 3,16,16,16,16,16,16,16,16}
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#define VSX_LEFTSHIFTED2_4 (vector unsigned char){16,16,16,16,16,16,16,16, 4, 5, 6, 7,16,16,16,16}
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#define VSX_LEFTSHIFTED3_4 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16, 8, 9,10,11}
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static const vector unsigned char VSX_LEFTSHIFTED1_4 = {16,16,16,16, 0, 1, 2, 3,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_LEFTSHIFTED2_4 = {16,16,16,16,16,16,16,16, 4, 5, 6, 7,16,16,16,16};
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static const vector unsigned char VSX_LEFTSHIFTED3_4 = {16,16,16,16,16,16,16,16,16,16,16,16, 8, 9,10,11};
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#define VSX_LEFTSHIFTED1_3 (vector unsigned char){16,16,16, 0, 1, 2,16,16,16,16,16,16,16,16,16,16}
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#define VSX_LEFTSHIFTED2_3 (vector unsigned char){16,16,16,16,16,16, 3, 4, 5,16,16,16,16,16,16,16}
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#define VSX_LEFTSHIFTED3_3 (vector unsigned char){16,16,16,16,16,16,16,16,16, 6, 7, 8,16,16,16,16}
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#define VSX_LEFTSHIFTED4_3 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16, 9,10,11,16}
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static const vector unsigned char VSX_LEFTSHIFTED1_3 = {16,16,16, 0, 1, 2,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_LEFTSHIFTED2_3 = {16,16,16,16,16,16, 3, 4, 5,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_LEFTSHIFTED3_3 = {16,16,16,16,16,16,16,16,16, 6, 7, 8,16,16,16,16};
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static const vector unsigned char VSX_LEFTSHIFTED4_3 = {16,16,16,16,16,16,16,16,16,16,16,16, 9,10,11,16};
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#define VSX_NOT_SHIFTED1_4 (vector unsigned char){16,16,16,16, 4, 5, 6, 7,16,16,16,16,16,16,16,16}
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#define VSX_NOT_SHIFTED2_4 (vector unsigned char){16,16,16,16,16,16,16,16, 8, 9,10,11,16,16,16,16}
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#define VSX_NOT_SHIFTED3_4 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16,12,13,14,15}
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static const vector unsigned char VSX_NOT_SHIFTED1_4 = {16,16,16,16, 4, 5, 6, 7,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_NOT_SHIFTED2_4 = {16,16,16,16,16,16,16,16, 8, 9,10,11,16,16,16,16};
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static const vector unsigned char VSX_NOT_SHIFTED3_4 = {16,16,16,16,16,16,16,16,16,16,16,16,12,13,14,15};
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#define VSX_NOT_SHIFTED1_3 (vector unsigned char){16,16,16, 3, 4, 5,16,16,16,16,16,16,16,16,16,16}
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#define VSX_NOT_SHIFTED2_3 (vector unsigned char){16,16,16,16,16,16, 6, 7, 8,16,16,16,16,16,16,16}
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#define VSX_NOT_SHIFTED3_3 (vector unsigned char){16,16,16,16,16,16,16,16,16, 9,10,11,16,16,16,16}
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#define VSX_NOT_SHIFTED4_3 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16,12,13,14,16}
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static const vector unsigned char VSX_NOT_SHIFTED1_3 = {16,16,16, 3, 4, 5,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_NOT_SHIFTED2_3 = {16,16,16,16,16,16, 6, 7, 8,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_NOT_SHIFTED3_3 = {16,16,16,16,16,16,16,16,16, 9,10,11,16,16,16,16};
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static const vector unsigned char VSX_NOT_SHIFTED4_3 = {16,16,16,16,16,16,16,16,16,16,16,16,12,13,14,16};
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#define VSX_CHAR_ZERO (vector unsigned char){0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
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static const vector unsigned char VSX_CHAR_ZERO = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
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#ifdef __LITTLE_ENDIAN__
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# define VSX_CHAR_TO_SHORT1_4 (vector unsigned char){ 4,16, 5,16, 6,16, 7,16,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT2_4 (vector unsigned char){ 8,16, 9,16,10,16,11,16,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT3_4 (vector unsigned char){12,16,13,16,14,16,15,16,16,16,16,16,16,16,16,16}
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static const vector unsigned char VSX_CHAR_TO_SHORT1_4 = { 4,16, 5,16, 6,16, 7,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT2_4 = { 8,16, 9,16,10,16,11,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT3_4 = {12,16,13,16,14,16,15,16,16,16,16,16,16,16,16,16};
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# define VSX_SHORT_TO_CHAR1_4 (vector unsigned char){16,16,16,16, 0, 2, 4, 6,16,16,16,16,16,16,16,16}
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# define VSX_SHORT_TO_CHAR2_4 (vector unsigned char){16,16,16,16,16,16,16,16, 0, 2, 4, 6,16,16,16,16}
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# define VSX_SHORT_TO_CHAR3_4 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16, 0, 2, 4, 6}
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static const vector unsigned char VSX_SHORT_TO_CHAR1_4 = {16,16,16,16, 0, 2, 4, 6,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR2_4 = {16,16,16,16,16,16,16,16, 0, 2, 4, 6,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR3_4 = {16,16,16,16,16,16,16,16,16,16,16,16, 0, 2, 4, 6};
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# define VSX_CHAR_TO_SHORT1_3 (vector unsigned char){ 3,16, 4,16, 5,16,16,16,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT2_3 (vector unsigned char){ 6,16, 7,16, 8,16,16,16,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT3_3 (vector unsigned char){ 9,16,10,16,11,16,16,16,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT4_3 (vector unsigned char){12,16,13,16,14,16,16,16,16,16,16,16,16,16,16,16}
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static const vector unsigned char VSX_CHAR_TO_SHORT1_3 = { 3,16, 4,16, 5,16,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT2_3 = { 6,16, 7,16, 8,16,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT3_3 = { 9,16,10,16,11,16,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT4_3 = {12,16,13,16,14,16,16,16,16,16,16,16,16,16,16,16};
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# define VSX_SHORT_TO_CHAR1_3 (vector unsigned char){16,16,16, 0, 2, 4,16,16,16,16,16,16,16,16,16,16}
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# define VSX_SHORT_TO_CHAR2_3 (vector unsigned char){16,16,16,16,16,16, 0, 2, 4,16,16,16,16,16,16,16}
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# define VSX_SHORT_TO_CHAR3_3 (vector unsigned char){16,16,16,16,16,16,16,16,16, 0, 2, 4,16,16,16,16}
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# define VSX_SHORT_TO_CHAR4_3 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16, 0, 2, 4,16}
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static const vector unsigned char VSX_SHORT_TO_CHAR1_3 = {16,16,16, 0, 2, 4,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR2_3 = {16,16,16,16,16,16, 0, 2, 4,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR3_3 = {16,16,16,16,16,16,16,16,16, 0, 2, 4,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR4_3 = {16,16,16,16,16,16,16,16,16,16,16,16, 0, 2, 4,16};
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#elif defined(__BIG_ENDIAN__)
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# define VSX_CHAR_TO_SHORT1_4 (vector unsigned char){16, 4,16, 5,16, 6,16, 7,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT2_4 (vector unsigned char){16, 8,16, 9,16,10,16,11,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT3_4 (vector unsigned char){16,12,16,13,16,14,16,15,16,16,16,16,16,16,16,16}
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static const vector unsigned char VSX_CHAR_TO_SHORT1_4 = {16, 4,16, 5,16, 6,16, 7,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT2_4 = {16, 8,16, 9,16,10,16,11,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT3_4 = {16,12,16,13,16,14,16,15,16,16,16,16,16,16,16,16};
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# define VSX_SHORT_TO_CHAR1_4 (vector unsigned char){16,16,16,16, 1, 3, 5, 7,16,16,16,16,16,16,16,16}
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# define VSX_SHORT_TO_CHAR2_4 (vector unsigned char){16,16,16,16,16,16,16,16, 1, 3, 5, 7,16,16,16,16}
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# define VSX_SHORT_TO_CHAR3_4 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16, 1, 3, 5, 7}
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static const vector unsigned char VSX_SHORT_TO_CHAR1_4 = {16,16,16,16, 1, 3, 5, 7,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR2_4 = {16,16,16,16,16,16,16,16, 1, 3, 5, 7,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR3_4 = {16,16,16,16,16,16,16,16,16,16,16,16, 1, 3, 5, 7};
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# define VSX_CHAR_TO_SHORT1_3 (vector unsigned char){16, 3,16, 4,16, 5,16,16,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT2_3 (vector unsigned char){16, 6,16, 7,16, 8,16,16,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT3_3 (vector unsigned char){16, 9,16,10,16,11,16,16,16,16,16,16,16,16,16,16}
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# define VSX_CHAR_TO_SHORT4_3 (vector unsigned char){16,12,16,13,16,14,16,16,16,16,16,16,16,16,16,16}
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static const vector unsigned char VSX_CHAR_TO_SHORT1_3 = {16, 3,16, 4,16, 5,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT2_3 = {16, 6,16, 7,16, 8,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT3_3 = {16, 9,16,10,16,11,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_CHAR_TO_SHORT4_3 = {16,12,16,13,16,14,16,16,16,16,16,16,16,16,16,16};
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# define VSX_SHORT_TO_CHAR1_3 (vector unsigned char){16,16,16, 1, 3, 5,16,16,16,16,16,16,16,16,16,16}
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# define VSX_SHORT_TO_CHAR2_3 (vector unsigned char){16,16,16,16,16,16, 1, 3, 5,16,16,16,16,16,16,16}
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# define VSX_SHORT_TO_CHAR3_3 (vector unsigned char){16,16,16,16,16,16,16,16,16, 1, 3, 5,16,16,16,16}
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# define VSX_SHORT_TO_CHAR4_3 (vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16, 1, 3, 5,16}
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static const vector unsigned char VSX_SHORT_TO_CHAR1_3 = {16,16,16, 1, 3, 5,16,16,16,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR2_3 = {16,16,16,16,16,16, 1, 3, 5,16,16,16,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR3_3 = {16,16,16,16,16,16,16,16,16, 1, 3, 5,16,16,16,16};
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static const vector unsigned char VSX_SHORT_TO_CHAR4_3 = {16,16,16,16,16,16,16,16,16,16,16,16, 1, 3, 5,16};
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#endif
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#define vsx_char_to_short(vec,offset,bpp) (vector unsigned short)vec_perm((vec),VSX_CHAR_ZERO,VSX_CHAR_TO_SHORT##offset##_##bpp)
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#define vsx_short_to_char(vec,offset,bpp) vec_perm((vector unsigned char)(vec),VSX_CHAR_ZERO,VSX_SHORT_TO_CHAR##offset##_##bpp)
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#define vsx_short_to_char(vec,offset,bpp) vec_perm(((vector unsigned char)(vec)),VSX_CHAR_ZERO,VSX_SHORT_TO_CHAR##offset##_##bpp)
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#ifdef PNG_USE_ABS
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# define vsx_abs(number) abs(number)
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@ -173,7 +173,7 @@ void png_read_filter_row_up_vsx(png_row_infop row_info, png_bytep row,
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void png_read_filter_row_sub4_vsx(png_row_infop row_info, png_bytep row,
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png_const_bytep prev_row)
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{
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const unsigned int bpp = 4;
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const png_byte bpp = 4;
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vector unsigned char rp_vec;
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vector unsigned char part_vec;
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@ -196,7 +196,11 @@ void png_read_filter_row_sub4_vsx(png_row_infop row_info, png_bytep row,
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while( istop >= 16 )
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{
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for(i=0;i < bpp ; i++)
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*(rp+i) += *(rp+i - bpp);
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{
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*rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
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rp++;
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}
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rp -= bpp;
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rp_vec = vec_ld(0,rp);
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part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED1_4);
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@ -226,7 +230,7 @@ void png_read_filter_row_sub4_vsx(png_row_infop row_info, png_bytep row,
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void png_read_filter_row_sub3_vsx(png_row_infop row_info, png_bytep row,
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png_const_bytep prev_row)
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{
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const unsigned int bpp = 3;
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const png_byte bpp = 3;
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vector unsigned char rp_vec;
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vector unsigned char part_vec;
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@ -249,7 +253,11 @@ void png_read_filter_row_sub3_vsx(png_row_infop row_info, png_bytep row,
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while( istop >= 16 )
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{
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for(i=0;i < bpp ; i++)
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*(rp+i) += *(rp+i - bpp);
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{
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*rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
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rp++;
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}
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rp -= bpp;
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rp_vec = vec_ld(0,rp);
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part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED1_3);
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@ -265,13 +273,14 @@ void png_read_filter_row_sub3_vsx(png_row_infop row_info, png_bytep row,
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rp_vec = vec_add(rp_vec,part_vec);
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vec_st(rp_vec,0,rp);
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rp += 16;
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rp += 15;
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istop -= 16;
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/* Since 16 % bpp = 16 % 3 = 1, last element of array must
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* be proceeded manually
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*/
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*(rp - 1) += *(rp - 1 - 3);
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*rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
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rp++;
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}
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if(istop > 0)
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@ -285,7 +294,7 @@ void png_read_filter_row_sub3_vsx(png_row_infop row_info, png_bytep row,
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void png_read_filter_row_avg4_vsx(png_row_infop row_info, png_bytep row,
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png_const_bytep prev_row)
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{
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const unsigned int bpp = 4;
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const png_byte bpp = 4;
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vector unsigned char rp_vec;
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vector unsigned char pp_vec;
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@ -372,7 +381,7 @@ void png_read_filter_row_avg4_vsx(png_row_infop row_info, png_bytep row,
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void png_read_filter_row_avg3_vsx(png_row_infop row_info, png_bytep row,
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png_const_bytep prev_row)
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{
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const unsigned int bpp = 3;
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const png_byte bpp = 3;
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vector unsigned char rp_vec;
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vector unsigned char pp_vec;
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@ -490,7 +499,7 @@ void png_read_filter_row_avg3_vsx(png_row_infop row_info, png_bytep row,
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void png_read_filter_row_paeth4_vsx(png_row_infop row_info, png_bytep row,
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png_const_bytep prev_row)
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{
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const unsigned int bpp = 4;
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const png_byte bpp = 4;
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int a, b, c, pa, pb, pc, p;
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vector unsigned char rp_vec;
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@ -610,7 +619,7 @@ void png_read_filter_row_paeth4_vsx(png_row_infop row_info, png_bytep row,
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void png_read_filter_row_paeth3_vsx(png_row_infop row_info, png_bytep row,
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png_const_bytep prev_row)
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{
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const unsigned int bpp = 3;
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const png_byte bpp = 3;
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int a, b, c, pa, pb, pc, p;
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vector unsigned char rp_vec;
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