Lines Matching refs:readPtr
81 static void readDataFromStream(png_structp readPtr, png_bytep data, png_size_t length) {
82 std::istream* input = reinterpret_cast<std::istream*>(png_get_io_ptr(readPtr));
84 png_error(readPtr, strerror(errno));
97 static void logWarning(png_structp readPtr, png_const_charp warningMessage) {
98 SourceLogger* logger = reinterpret_cast<SourceLogger*>(png_get_error_ptr(readPtr));
103 static bool readPng(png_structp readPtr, png_infop infoPtr, PngInfo* outInfo,
105 if (setjmp(png_jmpbuf(readPtr))) {
110 png_set_sig_bytes(readPtr, kPngSignatureSize);
111 png_read_info(readPtr, infoPtr);
114 png_get_IHDR(readPtr, infoPtr, &outInfo->width, &outInfo->height, &bitDepth, &colorType,
118 png_set_palette_to_rgb(readPtr);
122 png_set_expand_gray_1_2_4_to_8(readPtr);
125 if (png_get_valid(readPtr, infoPtr, PNG_INFO_tRNS)) {
126 png_set_tRNS_to_alpha(readPtr);
130 png_set_strip_16(readPtr);
134 png_set_add_alpha(readPtr, 0xFF, PNG_FILLER_AFTER);
138 png_set_gray_to_rgb(readPtr);
141 png_set_interlace_handling(readPtr);
142 png_read_update_info(readPtr, infoPtr);
144 const uint32_t rowBytes = png_get_rowbytes(readPtr, infoPtr);
150 png_read_image(readPtr, outInfo->rows.data());
151 png_read_end(readPtr, infoPtr);
1213 png_structp readPtr = nullptr;
1219 readPtr = png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, nullptr, nullptr);
1220 if (!readPtr) {
1225 infoPtr = png_create_info_struct(readPtr);
1231 png_set_error_fn(readPtr, reinterpret_cast<png_voidp>(&logger), nullptr, logWarning);
1234 png_set_read_fn(readPtr, (png_voidp)&input, readDataFromStream);
1236 if (!readPng(readPtr, infoPtr, &pngInfo, outError)) {
1270 if (readPtr) {
1271 png_destroy_read_struct(&readPtr, &infoPtr, nullptr);
