6017    png_byte     sample_depth;            /* Scale of samples */  member
6079    const png_byte sample_depth = (png_byte)(colour_type ==  in image_pixel_init()  local
6081    const unsigned int max = (1U<<sample_depth)-1;  in image_pixel_init()
6094       sample_depth;  in image_pixel_init()
6167    this->sample_depth = sample_depth;  in image_pixel_init()
6228                this->bit_depth = this->sample_depth = 8;  in image_pixel_add_alpha()
6238                   this->bit_depth = this->sample_depth = 8;  in image_pixel_add_alpha()
6433    const unsigned int scale = (1U<<that->sample_depth)-1;  in image_transform_mod_end()
6453    if (sig_bits && that->red_sBIT < that->sample_depth)  in image_transform_mod_end()
6454       that->red >>= that->sample_depth - that->red_sBIT;  in image_transform_mod_end()
6471       if (sig_bits && that->green_sBIT < that->sample_depth)  in image_transform_mod_end()
6472          that->green >>= that->sample_depth - that->green_sBIT;  in image_transform_mod_end()
6475       if (sig_bits && that->blue_sBIT < that->sample_depth)  in image_transform_mod_end()
6476          that->blue >>= that->sample_depth - that->blue_sBIT;  in image_transform_mod_end()
6501    if (sig_bits && that->alpha_sBIT < that->sample_depth)  in image_transform_mod_end()
6502       that->alpha >>= that->sample_depth - that->alpha_sBIT;  in image_transform_mod_end()
6621          test_pixel.sample_depth = 8;  in transform_info_imp()
6623          test_pixel.sample_depth = test_pixel.bit_depth;  in transform_info_imp()
6629          test_pixel.alpha_sBIT = test_pixel.sample_depth;  in transform_info_imp()
6660           test_pixel.sample_depth != 8) /* oops - internal error! */  in transform_info_imp()
6665               && test_pixel.bit_depth != test_pixel.sample_depth)  in transform_info_imp()
6675          pos = safecatn(message, sizeof message, pos, test_pixel.sample_depth);  in transform_info_imp()
6709    unsigned int out, png_byte sample_depth, double err, double limit,  in transform_range_check()  argument
6718    unsigned int max = (1U<<sample_depth)-1;  in transform_range_check()
6763    const png_byte sample_depth = (png_byte)(out_ct ==  in transform_image_validate()  local
6811       if (sample_depth != 16 || in_sample_depth > 8 ||  in transform_image_validate()
6884                out_pixel.red, sample_depth, in_pixel.rede,  in transform_image_validate()
6891                in_pixel.greenf, out_pixel.green, sample_depth, in_pixel.greene,  in transform_image_validate()
6898                out_pixel.blue, sample_depth, in_pixel.bluee,  in transform_image_validate()
6905                in_pixel.alphaf, out_pixel.alpha, sample_depth, in_pixel.alphae,  in transform_image_validate()
7139       if (that->sample_depth < 8)  in image_transform_png_set_tRNS_to_alpha_mod()
7140          that->sample_depth = 8;  in image_transform_png_set_tRNS_to_alpha_mod()
7202          that->sample_depth = that->bit_depth = 8;  in image_transform_png_set_gray_to_rgb_mod()
7256       that->sample_depth = that->bit_depth = 8;  in image_transform_png_set_expand_mod()
7309       that->sample_depth = that->bit_depth = 8;  in image_transform_png_set_expand_gray_1_2_4_to_8_mod()
7372       that->sample_depth = that->bit_depth = 16;  in image_transform_png_set_expand_16_mod()
7416       that->sample_depth = that->bit_depth = 8;  in image_transform_png_set_scale_16_mod()
7464       that->sample_depth = that->bit_depth = 8;  in image_transform_png_set_strip_16_mod()
7908          const unsigned int sample_depth = that->sample_depth;  in image_transform_png_set_rgb_to_gray_mod()  local
7910             sample_depth);  in image_transform_png_set_rgb_to_gray_mod()
7912             (sample_depth == 16 ?  in image_transform_png_set_rgb_to_gray_mod()
7916                   sample_depth));  in image_transform_png_set_rgb_to_gray_mod()
7961             const double abse = .5/(sample_depth == 16 ? 65535 : 255);  in image_transform_png_set_rgb_to_gray_mod()
8027             if (gamma_depth != sample_depth)  in image_transform_png_set_rgb_to_gray_mod()
8038             graylo = DD(pow(graylo, power), sample_depth, 1);  in image_transform_png_set_rgb_to_gray_mod()
8039             grayhi = DU(pow(grayhi, power), sample_depth, 1);  in image_transform_png_set_rgb_to_gray_mod()
8137             double in_qe = (that->sample_depth > 8 ? .5/65535 : .5/255);  in image_transform_png_set_rgb_to_gray_mod()
8138             double out_qe = (that->sample_depth > 8 ? .5/65535 :  in image_transform_png_set_rgb_to_gray_mod()