mirror of https://github.com/buggins/dlangui.git
use Derelict/FreeImage instead of libpng to fix library version issues
This commit is contained in:
Vadim Lopatin
parent
a3d195fb8b
commit
81a71fab33
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@ -190,13 +190,10 @@
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</Config>
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<Folder name="dlangui">
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<Folder name="3rdparty">
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<Folder name="DerelictUtil">
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<File path="..\DerelictUtil\source\derelict\util\exception.d" />
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<File path="..\DerelictUtil\source\derelict\util\loader.d" />
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<File path="..\DerelictUtil\source\derelict\util\sharedlib.d" />
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<File path="..\DerelictUtil\source\derelict\util\system.d" />
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<File path="..\DerelictUtil\source\derelict\util\wintypes.d" />
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<File path="..\DerelictUtil\source\derelict\util\xtypes.d" />
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<Folder name="DerelictFT">
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<File path="..\DerelictFT\source\derelict\freetype\ft.d" />
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<File path="..\DerelictFT\source\derelict\freetype\functions.d" />
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<File path="..\DerelictFT\source\derelict\freetype\types.d" />
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</Folder>
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<Folder name="DerelictGL3">
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<File path="..\DerelictGL3\source\derelict\opengl3\arb.d" />
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@ -215,10 +212,18 @@
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<File path="..\DerelictGL3\source\derelict\opengl3\wgl.d" />
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<File path="..\DerelictGL3\source\derelict\opengl3\wglext.d" />
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</Folder>
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<Folder name="DerelictFT">
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<File path="..\DerelictFT\source\derelict\freetype\ft.d" />
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<File path="..\DerelictFT\source\derelict\freetype\functions.d" />
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<File path="..\DerelictFT\source\derelict\freetype\types.d" />
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<Folder name="DerelictUtil">
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<File path="..\DerelictUtil\source\derelict\util\exception.d" />
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<File path="..\DerelictUtil\source\derelict\util\loader.d" />
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<File path="..\DerelictUtil\source\derelict\util\sharedlib.d" />
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<File path="..\DerelictUtil\source\derelict\util\system.d" />
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<File path="..\DerelictUtil\source\derelict\util\wintypes.d" />
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<File path="..\DerelictUtil\source\derelict\util\xtypes.d" />
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</Folder>
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<Folder name="DerelictFI">
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<File path="..\DerelictFI\source\derelict\freeimage\freeimage.d" />
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<File path="..\DerelictFI\source\derelict\freeimage\functions.d" />
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<File path="..\DerelictFI\source\derelict\freeimage\types.d" />
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</Folder>
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<Folder name="gl3n">
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<File path="..\gl3n\gl3n\aabb.d" />
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Binary file not shown.
Binary file not shown.
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@ -216,8 +216,11 @@ ColorDrawBuf loadImage(string filename) {
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ColorDrawBuf loadImage(InputStream stream) {
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if (stream is null || !stream.isOpen)
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return null;
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// TODO: support more image types
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return loadPngImage(stream);
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static if (USE_FREEIMAGE) {
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return loadFreeImage(stream);
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} else static if (USE_LIBPNG) {
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return loadPngImage(stream);
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}
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}
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class ImageDecodingException : Exception {
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@ -226,110 +229,205 @@ class ImageDecodingException : Exception {
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}
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}
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extern (C) void lvpng_error_func (png_structp png, png_const_charp msg)
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{
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string s = fromStringz(msg);
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Log.d("Error while reading PNG image: ", s);
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// todo: exceptions do not work inside C function
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throw new ImageDecodingException("Error while decoding PNG image");
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immutable bool USE_LIBPNG = false;
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immutable bool USE_FREEIMAGE = true;
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shared static this() {
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//import derelict.freeimage.freeimage;
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//DerelictFI.load();
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}
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extern (C) void lvpng_warning_func (png_structp png, png_const_charp msg)
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{
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string s = fromStringz(msg);
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Log.d("Warn while reading PNG image: ", s);
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// todo: exceptions do not work inside C function
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throw new ImageDecodingException("Error while decoding PNG image");
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static if (USE_FREEIMAGE) {
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ColorDrawBuf loadFreeImage(InputStream stream) {
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import derelict.freeimage.freeimage;
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static bool FREE_IMAGE_LOADED;
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if (!FREE_IMAGE_LOADED) {
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DerelictFI.load();
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FREE_IMAGE_LOADED = true;
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}
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ubyte imagebuf[];
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ubyte readbuf[4096];
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for (;;) {
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size_t bytesRead = stream.read(readbuf);
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if (!bytesRead)
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break;
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imagebuf ~= readbuf[0..bytesRead];
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}
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//pointer to the image, once loaded
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FIBITMAP *dib = null; //image format
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FREE_IMAGE_FORMAT fif = FIF_UNKNOWN;
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// attach the binary data to a memory stream
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FIMEMORY *hmem = FreeImage_OpenMemory(imagebuf.ptr, imagebuf.length);
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fif = FreeImage_GetFileTypeFromMemory(hmem);
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//check that the plugin has reading capabilities and load the file
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if(!FreeImage_FIFSupportsReading(fif)) {
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FreeImage_CloseMemory(hmem);
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return null;
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}
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// load an image from the memory stream
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dib = FreeImage_LoadFromMemory(fif, hmem, 0);
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//if the image failed to load, return failure
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if (!dib) {
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Log.e("Failed to decode image");
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FreeImage_CloseMemory(hmem);
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return null;
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}
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//retrieve the image data
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ubyte * data = cast(ubyte*)FreeImage_GetBits(dib);
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//get the image width and height, and size per pixel
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int width = FreeImage_GetWidth(dib);
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int height = FreeImage_GetHeight(dib);
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int pixelSize = FreeImage_GetBPP(dib)/8;
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int size = width*height*pixelSize;
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ColorDrawBuf res = new ColorDrawBuf(width, height);
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//swap R and B and invert image while copying
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ubyte* src;
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uint* dst;
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uint r, g, b, a;
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for( int i = 0, ii = height-1; i < height ; ++i, --ii ) {
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dst = res.scanLine(i);
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src = data + (ii * width) * pixelSize;
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for( int j = 0; j < width; ++j, ++dst, src += pixelSize ) {
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a = 0;
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switch (pixelSize) {
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case 4:
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a = src[3] ^ 255;
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case 3:
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r = src[2];
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g = src[1];
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b = src[0];
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break;
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case 2:
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// todo: do something better
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r = g = src[1];
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b = src[0];
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break;
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default:
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case 1:
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r = g = b = src[0];
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break;
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}
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dst[0] = (a << 24) | (r << 16) | (g << 8) | b;
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}
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}
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FreeImage_CloseMemory(hmem);
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return res;
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}
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}
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extern (C) void lvpng_read_func(png_structp png, png_bytep buf, png_size_t len)
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{
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InputStream stream = cast(InputStream)png_get_io_ptr(png);
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ubyte[] localbuf = new ubyte[len];
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if (stream.read(localbuf) != len)
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throw new ImageDecodingException("Error while reading PNG image");
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for (uint i = 0; i < len; i++)
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buf[i] = localbuf[i];
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}
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static if (USE_LIBPNG) {
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/// load and decode PNG image
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ColorDrawBuf loadPngImage(InputStream stream)
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{
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png_structp png_ptr = null;
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png_infop info_ptr = null;
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png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
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cast(png_voidp)stream, &lvpng_error_func, &lvpng_warning_func);
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if ( !png_ptr )
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return null;
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extern (C) void lvpng_error_func (png_structp png, png_const_charp msg)
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{
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string s = fromStringz(msg);
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Log.d("Error while reading PNG image: ", s);
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// todo: exceptions do not work inside C function
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throw new ImageDecodingException("Error while decoding PNG image");
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}
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try {
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//
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info_ptr = png_create_info_struct(png_ptr);
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if (!info_ptr)
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lvpng_error_func(png_ptr, "cannot create png info struct");
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png_set_read_fn(png_ptr,
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cast(void*)stream, &lvpng_read_func);
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png_read_info( png_ptr, info_ptr );
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extern (C) void lvpng_warning_func (png_structp png, png_const_charp msg)
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{
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string s = fromStringz(msg);
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Log.d("Warn while reading PNG image: ", s);
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// todo: exceptions do not work inside C function
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throw new ImageDecodingException("Error while decoding PNG image");
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}
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extern (C) void lvpng_read_func(png_structp png, png_bytep buf, png_size_t len)
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{
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InputStream stream = cast(InputStream)png_get_io_ptr(png);
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ubyte[] localbuf = new ubyte[len];
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if (stream.read(localbuf) != len)
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throw new ImageDecodingException("Error while reading PNG image");
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for (uint i = 0; i < len; i++)
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buf[i] = localbuf[i];
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}
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/// load and decode PNG image
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ColorDrawBuf loadPngImage(InputStream stream)
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{
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png_structp png_ptr = null;
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png_infop info_ptr = null;
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png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
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cast(png_voidp)stream, &lvpng_error_func, &lvpng_warning_func);
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if ( !png_ptr )
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return null;
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try {
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//
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info_ptr = png_create_info_struct(png_ptr);
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if (!info_ptr)
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lvpng_error_func(png_ptr, "cannot create png info struct");
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png_set_read_fn(png_ptr,
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cast(void*)stream, &lvpng_read_func);
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png_read_info( png_ptr, info_ptr );
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png_uint_32 width, height;
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int bit_depth, color_type, interlace_type;
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png_get_IHDR(png_ptr, info_ptr, &width, &height,
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&bit_depth, &color_type, &interlace_type,
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null, null);
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ColorDrawBuf drawbuf = new ColorDrawBuf(width, height);
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png_uint_32 width, height;
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int bit_depth, color_type, interlace_type;
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png_get_IHDR(png_ptr, info_ptr, &width, &height,
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&bit_depth, &color_type, &interlace_type,
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null, null);
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ColorDrawBuf drawbuf = new ColorDrawBuf(width, height);
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if (color_type & PNG_COLOR_MASK_PALETTE)
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png_set_palette_to_rgb(png_ptr);
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if (color_type & PNG_COLOR_MASK_PALETTE)
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png_set_palette_to_rgb(png_ptr);
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if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
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png_set_expand_gray_1_2_4_to_8(png_ptr);
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if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
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png_set_expand_gray_1_2_4_to_8(png_ptr);
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if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
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png_set_tRNS_to_alpha(png_ptr);
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if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
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png_set_tRNS_to_alpha(png_ptr);
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if (bit_depth == 16)
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png_set_strip_16(png_ptr);
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if (bit_depth == 16)
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png_set_strip_16(png_ptr);
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png_set_invert_alpha(png_ptr);
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png_set_invert_alpha(png_ptr);
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if (bit_depth < 8)
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png_set_packing(png_ptr);
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if (bit_depth < 8)
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png_set_packing(png_ptr);
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png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
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png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
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if (color_type == PNG_COLOR_TYPE_GRAY ||
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color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
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png_set_gray_to_rgb(png_ptr);
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if (color_type == PNG_COLOR_TYPE_GRAY ||
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color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
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png_set_gray_to_rgb(png_ptr);
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int number_passes = png_set_interlace_handling(png_ptr);
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png_set_bgr(png_ptr);
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int number_passes = png_set_interlace_handling(png_ptr);
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png_set_bgr(png_ptr);
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for (int pass = 0; pass < number_passes; pass++)
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{
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for (int y = 0; y < height; y++)
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{
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uint * row = drawbuf.scanLine(y);
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png_read_rows(png_ptr, cast(ubyte **)&row, null, 1);
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}
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}
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for (int pass = 0; pass < number_passes; pass++)
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{
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for (int y = 0; y < height; y++)
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{
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uint * row = drawbuf.scanLine(y);
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png_read_rows(png_ptr, cast(ubyte **)&row, null, 1);
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}
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}
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png_read_end(png_ptr, info_ptr);
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png_read_end(png_ptr, info_ptr);
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png_destroy_read_struct(&png_ptr, &info_ptr, null);
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png_destroy_read_struct(&png_ptr, &info_ptr, null);
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return drawbuf;
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} catch (ImageDecodingException e) {
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if (png_ptr)
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{
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png_destroy_read_struct(&png_ptr, &info_ptr, null);
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}
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return null;
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}
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}
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return drawbuf;
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} catch (ImageDecodingException e) {
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if (png_ptr)
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{
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png_destroy_read_struct(&png_ptr, &info_ptr, null);
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}
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return null;
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}
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}
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//bool LVPngImageSource::CheckPattern( const lUInt8 * buf, int )
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//{
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//return( !png_sig_cmp((unsigned char *)buf, (png_size_t)0, 4) );
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//}
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//bool LVPngImageSource::CheckPattern( const lUInt8 * buf, int )
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//{
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//return( !png_sig_cmp((unsigned char *)buf, (png_size_t)0, 4) );
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//}
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}
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