staticvoidcaerLibPNGWriteBuffer(png_structp png_ptr, png_bytep data,png_size_tlength){structmem_encode*p= (structmem_encode*)png_get_io_ptr(png_ptr);size_tnsize = p->size + length;// Allocate or grow buffer as needed.if(p->buffer) { p->buffer =realloc(p->buffer, nsize); }els...
png_byteppng_data,png_size_tdata_size){std::istream&is=*static_cast<std::istream*>(png_get_io_ptr(png_ptr));is.read(reinterpret_cast<char*>(png_data),data_size);};
* _png_ptr, uchar* src, size_t size) { if (size == 0) return; png_structp png_ptr = reinterpret_cast<png_structp>(_png_ptr); PngImageEncoder* encoder = (PngImageEncoder*)(png_get_io_ptr(png_ptr)); CV_Assert(encoder
png_init_io(png_ptr, file); // 读文件了 png_read_png(png_ptr, info_ptr, PNG_TRANSFORM_EXPAND, 0); // 得到文件的宽高色深 int m_width = png_get_image_width(png_ptr, info_ptr); int m_height = png_get_image_height(png_ptr, info_ptr); int color_type = png_get_color_type(...
static void pngReaderCallback(png_structp png_ptr, png_bytep data, png_size_t length) { ImageSource* isource = (ImageSource*)png_get_io_ptr(png_ptr); if(isource->offset + length <= isource->size) { memcpy(data, isource->data + isource->offset, length); ...
png_init_io(png_ptr, fp); png_read_info(png_ptr, info_ptr); png_uint_32 width = png_get_image_width(png_ptr, info_ptr); png_uint_32 height = png_get_image_height(png_ptr, info_ptr); int bit_depth = png_get_bit_depth(png_ptr, info_ptr); int color_type = png_get_color...
加载png图片并转换为DIB HBITMAP,staticvoidpngReaderCallback(png_structppng_ptr,png_bytepdata,png_size_tlength){ImageSource*isource=(ImageSource*)png_get_io_ptr(png_ptr)...
qanimationwriter.cpp:(.text._ZN19QAnimationWriterMNG5writeEP14png_struct_defPhj[QAnimationWriterMNG::write(png_struct_def*, unsigned char*, unsigned int)]+0xb): undefined reference to `png_get_io_ptr' .obj/release-shared/qanimationwriter.o: In function `QAnimationWriterMNG::composeImage(QI...
(png 4、_structp png_ptr, png_bytep data, png_size_t length)ImageSource* isource = (ImageSource*)png_get_io_ptr(png_ptr);if(isource-offset + length size) memcpy(data, isource-data + isource-offset, length); isource-offset += length;else png_error(png_ptr,pngReaderCallback failed)...
png_infop png_info_ptr){ LoadContext* lc; lc =png_get_progressive_ptr(png_read_ptr);if(lc->fatal_error_occurred)return; } 开发者ID:YueLinHo,项目名称:MB3Gdk-pixbuf,代码行数:12,代码来源:io-png.c 示例5: pngDecEndCallback ▲点赞 1▼ ...