51     mpRowPointers = NULL;  in png_reader()
78         NULL, NULL, NULL);  in CheckImageHasAlphaChannel()
91         png_destroy_read_struct(&png_ptr, NULL, NULL);  in CheckImageHasAlphaChannel()
102     if (png_get_IHDR(png_ptr, info, NULL, NULL, NULL, &color_type, NULL, NULL, NULL) == 0)  in CheckImageHasAlphaChannel()
107     if (png_get_tRNS(png_ptr, info, NULL, &num_trans, NULL) == 0)  in CheckImageHasAlphaChannel()
132     png_destroy_read_struct(&png_ptr, &info, NULL);  in CheckImageHasAlphaChannel()
157         NULL, NULL, NULL);  in ReadImage()
170         png_destroy_read_struct(&m_png, NULL, NULL);  in ReadImage()
176     png_read_png(m_png, m_info, PNG_TRANSFORM_IDENTITY, NULL);  in ReadImage()
182     if (png_get_IHDR(m_png, m_info, &width, &height, NULL, NULL, NULL, NULL, NULL) != 0)  in ReadImage()
192                 png_destroy_read_struct(&m_png, &m_info, NULL);  in ReadImage()
199     png_destroy_read_struct(&m_png, &m_info, NULL);  in ReadImage()
209     input_stream->Read(signature, 8, NULL);  in ReadImage()
217         NULL, NULL, NULL);  in ReadImage()
228         png_destroy_read_struct(&m_png, NULL, NULL);  in ReadImage()
236     png_read_png(m_png, m_info, PNG_TRANSFORM_IDENTITY, NULL);  in ReadImage()
242     if (png_get_IHDR(m_png, m_info, &width, &height, NULL, NULL, NULL, NULL, NULL) != 0)  in ReadImage()
252                 png_destroy_read_struct(&m_png, &m_info, NULL);  in ReadImage()
258     png_destroy_read_struct(&m_png, &m_info, NULL);  in ReadImage()
277     return NULL;  in GetInputDataPtr()
296     if (png_get_tRNS(png_instance, png_info_ptr, NULL, &num_trans, &trans_color) == 0)  in ReadPixel48()
299         trans_color = NULL;  in ReadPixel48()
341         palette = NULL;  in ReadPixel1()
347         trans_alpha = NULL;  in ReadPixel1()
349         trans_color = NULL;  in ReadPixel1()
410         palette = NULL;  in ReadPixel2()
416         trans_alpha = NULL;  in ReadPixel2()
418         trans_color = NULL;  in ReadPixel2()
477         palette = NULL;  in ReadPixel4()
483         trans_alpha = NULL;  in ReadPixel4()
485         trans_color = NULL;  in ReadPixel4()
542 …if (png_get_IHDR(png_instance, png_info_ptr, NULL, NULL, NULL, &color_type, NULL, NULL, NULL) == 0)  in ReadPixel8()
550         palette = NULL;  in ReadPixel8()
556         trans_alpha = NULL;  in ReadPixel8()
558         trans_color = NULL;  in ReadPixel8()
631     if (png_get_tRNS(png_instance, png_info_ptr, NULL, &num_trans, &trans_color) == 0)  in ReadPixel24()
633         trans_color = NULL;  in ReadPixel24()
701     if (png_get_tRNS(png_instance, png_info_ptr, NULL, &num_trans, &trans_color) == 0)  in ReadPixel16To8()
704         trans_color = NULL;  in ReadPixel16To8()
749     if (png_get_IHDR(m_png, m_info, NULL, NULL, &bit_depth, &color_type, NULL, NULL, NULL) == 0)  in ConfigureInternalFormat()
755     if (png_get_tRNS(m_png, m_info, NULL, &num_trans, NULL) == 0)  in ConfigureInternalFormat()