png_set_IHDR 574 ext/gd/libgd/gd_png.c png_set_IHDR(png_ptr, info_ptr, width, height, 8, PNG_COLOR_TYPE_RGB_ALPHA, interlace_type, png_set_IHDR 577 ext/gd/libgd/gd_png.c png_set_IHDR(png_ptr, info_ptr, width, height, 8, PNG_COLOR_TYPE_RGB, interlace_type, png_set_IHDR 581 ext/gd/libgd/gd_png.c png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, PNG_COLOR_TYPE_PALETTE, interlace_type,