99     int color_type, num_trans;  in CheckImageHasAlphaChannel()  local
107     if (png_get_tRNS(png_ptr, info, NULL, &num_trans, NULL) == 0)  in CheckImageHasAlphaChannel()
109         num_trans = 0;  in CheckImageHasAlphaChannel()
123         if (num_trans > 0)  in CheckImageHasAlphaChannel()
294     int num_trans;  in ReadPixel48()  local
296     if (png_get_tRNS(png_instance, png_info_ptr, NULL, &num_trans, &trans_color) == 0)  in ReadPixel48()
298         num_trans = 0;  in ReadPixel48()
302     if ((num_trans > 0) &&  in ReadPixel48()
333     int num_palette, num_trans;  in ReadPixel1()  local
345     if (png_get_tRNS(png_instance, png_info_ptr, &trans_alpha, &num_trans, &trans_color) == 0)  in ReadPixel1()
348         num_trans = 0;  in ReadPixel1()
356         if ((num_trans > 0) && (trans_alpha[0] == pal_index))  in ReadPixel1()
374         if ((num_trans > 0) &&  (trans_color->gray == pal_index))  in ReadPixel1()
403     int num_palette, num_trans;  in ReadPixel2()  local
414     if (png_get_tRNS(png_instance, png_info_ptr, &trans_alpha, &num_trans, &trans_color) == 0)  in ReadPixel2()
417         num_trans = 0;  in ReadPixel2()
424         if ((num_trans > 0) && (trans_alpha[0] == pal_index))  in ReadPixel2()
442         if ((num_trans > 0) && (trans_color->gray == pal_index))  in ReadPixel2()
470     int num_palette, num_trans;  in ReadPixel4()  local
481     if (png_get_tRNS(png_instance, png_info_ptr, &trans_alpha, &num_trans, &trans_color) == 0)  in ReadPixel4()
484         num_trans = 0;  in ReadPixel4()
491         if ((num_trans > 0) && (trans_alpha[0] == pal_index))  in ReadPixel4()
510         if ((num_trans > 0) && (trans_color->gray == pal_index))  in ReadPixel4()
536     int color_type, num_palette, num_trans;  in ReadPixel8()  local
554     if (png_get_tRNS(png_instance, png_info_ptr, &trans_alpha, &num_trans, &trans_color) == 0)  in ReadPixel8()
557         num_trans = 0;  in ReadPixel8()
570         if (pal_index < num_trans)  in ReadPixel8()
587         if ((num_trans > 0) && (trans_alpha[0] == pal_index))  in ReadPixel8()
599         if ((num_trans > 0) && (trans_color->gray == pal_index))  in ReadPixel8()
628     int num_trans;  in ReadPixel24()  local
631     if (png_get_tRNS(png_instance, png_info_ptr, NULL, &num_trans, &trans_color) == 0)  in ReadPixel24()
634         num_trans = 0;  in ReadPixel24()
637     if ((num_trans > 0) &&  in ReadPixel24()
698     int num_trans;  in ReadPixel16To8()  local
701     if (png_get_tRNS(png_instance, png_info_ptr, NULL, &num_trans, &trans_color) == 0)  in ReadPixel16To8()
703         num_trans = 0;  in ReadPixel16To8()
707     if ((num_trans > 0) && (trans_color->gray == gray))  in ReadPixel16To8()
746     int bit_depth, color_type, num_trans;  in ConfigureInternalFormat()  local
755     if (png_get_tRNS(m_png, m_info, NULL, &num_trans, NULL) == 0)  in ConfigureInternalFormat()
757         num_trans = 0;  in ConfigureInternalFormat()
763         if (num_trans > 0)  in ConfigureInternalFormat()
798         if (num_trans > 0)  in ConfigureInternalFormat()