-/*\r
-Copyright (C) 1999-2007 id Software, Inc. and contributors.\r
-For a list of contributors, see the accompanying CONTRIBUTORS file.\r
-\r
-This file is part of GtkRadiant.\r
-\r
-GtkRadiant is free software; you can redistribute it and/or modify\r
-it under the terms of the GNU General Public License as published by\r
-the Free Software Foundation; either version 2 of the License, or\r
-(at your option) any later version.\r
-\r
-GtkRadiant is distributed in the hope that it will be useful,\r
-but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-GNU General Public License for more details.\r
-\r
-You should have received a copy of the GNU General Public License\r
-along with GtkRadiant; if not, write to the Free Software\r
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\r
-*/\r
-\r
-#include <stdio.h>\r
-#include <string.h>\r
-#include <glib.h>\r
-#include "bmp.h"\r
-\r
-#include "image.h"\r
-\r
-static void BMPLineNone(FILE *f, char *sline, int pixbytes, int width)\r
-{\r
- int nbytes, i, k, j;\r
-\r
- switch (pixbytes)\r
- {\r
- case 1 :\r
- nbytes = (width + 3) / 4;\r
- nbytes *= 4;\r
-\r
- fread(sline, width, 1, f);\r
- nbytes -= width;\r
-\r
- while (nbytes-- > 0) fgetc(f);\r
- return;\r
-\r
- case 3 :\r
- nbytes = ((width * 3) + 3) / 4;\r
- nbytes *= 4;\r
-\r
- fread(sline, width, 3, f);\r
- nbytes -= width * 3;\r
-\r
- while (nbytes-- > 0) fgetc(f);\r
-\r
- // reorder bgr to rgb\r
- for (i = 0, j = 0; i < width; i++, j += 3)\r
- {\r
- k = sline[j];\r
- sline[j] = sline[j+2];\r
- sline[j+2] = k;\r
- }\r
-\r
- return;\r
- }\r
-\r
- Error("BMPLineNone failed.");\r
-}\r
-\r
-\r
-static void BMPLineRLE8(FILE *f, char *sline, int pixbytes, int width)\r
-{\r
- Error("RLE8 not yet supported.");\r
-}\r
-\r
-\r
-static void BMPLineRLE4(FILE *f, char *sline, int pixbytes, int width)\r
-{\r
- Error("RLE4 not yet supported.");\r
-}\r
-\r
-\r
-static void BMPLine(FILE *f, char *scanline, int pixbytes, int width, int rle)\r
-{\r
- switch (rle)\r
- {\r
- case xBI_NONE : BMPLineNone(f, scanline, pixbytes, width); return;\r
- case xBI_RLE8 : BMPLineRLE8(f, scanline, pixbytes, width); return;\r
- case xBI_RLE4 : BMPLineRLE4(f, scanline, pixbytes, width); return;\r
- }\r
-\r
- Error("Unknown compression type.");\r
-}\r
-\r
-\r
-/*\r
-static void PrintHeader(binfo_t *b)\r
-{\r
- printf("biSize : %ld\n", b->biSize);\r
- printf("biWidth : %ld\n", b->biWidth);\r
- printf("biHeight : %ld\n", b->biHeight);\r
- printf("biPlanes : %d\n", b->biPlanes);\r
- printf("biBitCount : %d\n", b->biBitCount);\r
- printf("biCompression : %ld\n", b->biCompression);\r
- printf("biSizeImage : %ld\n", b->biSizeImage);\r
- printf("biXPelsPerMeter: %ld\n", b->biXPelsPerMeter);\r
- printf("biYPelsPerMeter: %ld\n", b->biYPelsPerMeter);\r
- printf("biClrUsed : %ld\n", b->biClrUsed);\r
- printf("biClrImportant : %ld\n", b->biClrImportant);\r
-}\r
-*/\r
-\r
-// FIXME: calls to Error(const char *, ... ) are dependant on qe3.cpp\r
-void LoadBMP(char *filename, bitmap_t *bit)\r
-{\r
- FILE *f;\r
- bmphd_t bhd;\r
- binfo_t info;\r
- // int pxlsize = 1;\r
- int rowbytes, i, pixbytes;\r
- char *scanline;\r
-\r
- // open file\r
- if ((f = fopen(filename, "rb")) == NULL)\r
- {\r
- Error("Unable to open file");// %s.", filename);\r
- }\r
-\r
- // read in bitmap header\r
- if (fread(&bhd, sizeof(bhd), 1, f) != 1)\r
- {\r
- fclose(f);\r
- Error("Unable to read in bitmap header.");\r
- }\r
-\r
- // make sure we have a valid bitmap file\r
- if (bhd.bfType != BMP_SIGNATURE_WORD)\r
- {\r
- fclose(f);\r
- Error("Invalid BMP file");//: %s", filename);\r
- }\r
-\r
- // load in info header\r
- if (fread(&info, sizeof(info), 1, f) != 1)\r
- {\r
- fclose(f);\r
- Error("Unable to read bitmap info header.");\r
- }\r
-\r
- // make sure this is an info type of bitmap\r
- if (info.biSize != sizeof(binfo_t))\r
- {\r
- fclose(f);\r
- Error("We only support the info bitmap type.");\r
- }\r
-\r
- // PrintHeader(&info);\r
-\r
- bit->bpp = info.biBitCount;\r
- bit->width = info.biWidth;\r
- bit->height = info.biHeight;\r
- bit->data = NULL;\r
- bit->palette = NULL;\r
-\r
- //currently we only read in 8 and 24 bit bmp files\r
- if (info.biBitCount == 8) pixbytes = 1;\r
- else if (info.biBitCount == 24) pixbytes = 3;\r
- else\r
- {\r
- Error("Only 8BPP and 24BPP supported");\r
- //Error("BPP %d not supported.", info.biBitCount);\r
- }\r
-\r
- // if this is an eight bit image load palette\r
- if (pixbytes == 1)\r
- {\r
- drgb_t q;\r
-\r
- bit->palette = reinterpret_cast<rgb_t*>(g_malloc(sizeof(rgb_t) * 256));\r
-\r
- for (i = 0; i < 256; i++)\r
- {\r
- if (fread(&q, sizeof(drgb_t), 1, f) != 1)\r
- {\r
- fclose(f); g_free(bit->palette);\r
- Error("Unable to read palette.");\r
- }\r
-\r
- bit->palette[i].r = q.red;\r
- bit->palette[i].g = q.green;\r
- bit->palette[i].b = q.blue;\r
- }\r
- }\r
-\r
- // position to start of bitmap\r
- fseek(f, bhd.bfOffBits, SEEK_SET);\r
-\r
- // create scanline to read data into\r
- rowbytes = ((info.biWidth * pixbytes) + 3) / 4;\r
- rowbytes *= 4;\r
-\r
- scanline = reinterpret_cast<char*>(g_malloc(rowbytes));\r
-\r
- // alloc space for new bitmap\r
- bit->data = reinterpret_cast<unsigned char*>(g_malloc(info.biWidth * pixbytes * info.biHeight));\r
-\r
- // read in image\r
- for (i = 0; i < info.biHeight; i++)\r
- {\r
- BMPLine(f, scanline, pixbytes, info.biWidth, info.biCompression);\r
-\r
- // store line\r
- memcpy(&bit->data[info.biWidth * pixbytes * (info.biHeight - i - 1)], scanline, info.biWidth * pixbytes);\r
- }\r
-\r
- g_free(scanline);\r
- fclose(f);\r
-}\r
-\r
-\r
-\r
-static void BMPEncodeLine(FILE *f, unsigned char *data, int npxls, int pixbytes)\r
-{\r
- int nbytes, i, j, k;\r
-\r
- switch (pixbytes)\r
- {\r
- case 1 :\r
- nbytes = (npxls + 3) / 4;\r
- nbytes *= 4;\r
-\r
- fwrite(data, npxls, 1, f);\r
- nbytes -= npxls;\r
-\r
- while (nbytes-- > 0) fputc(0, f);\r
- return;\r
-\r
- case 3 :\r
- // reorder rgb to bgr\r
- for (i = 0, j = 0; i < npxls; i++, j+= 3)\r
- {\r
- k = data[j];\r
- data[j] = data[j + 2];\r
- data[j + 2] = k;\r
- }\r
-\r
- nbytes = ((npxls * 3) + 3) / 4;\r
- nbytes *= 4;\r
-\r
- fwrite(data, npxls, 3, f);\r
- nbytes -= npxls * 3;\r
-\r
- while (nbytes-- > 0) fputc(0, f);\r
- return;\r
- }\r
-\r
- Error("BMPEncodeLine Failed.");\r
-}\r
-\r
-\r
-\r
-void WriteBMP(char *filename, bitmap_t *bit)\r
-{\r
- FILE *f;\r
- bmphd_t header;\r
- binfo_t info;\r
- drgb_t q; // palette that gets written\r
- long bmofs;\r
- int w, h, i;\r
- int pixbytes;\r
-\r
- if (bit->bpp == 8) pixbytes = 1;\r
- else if (bit->bpp == 24) pixbytes = 3;\r
-\r
- else\r
- {\r
- Error("Only 8BPP and 24BPP supported");\r
- //Error("BPP %d not supported.", bit->bpp);\r
- }\r
-\r
-\r
- if ((f = fopen(filename, "wb")) == NULL)\r
- {\r
- Error("Unable to open file");//%s.", filename);\r
- }\r
-\r
- // write out an empty header as a place holder\r
- if (fwrite(&header, sizeof(header), 1, f) != 1)\r
- {\r
- Error("Unable to fwrite.");\r
- }\r
-\r
- // init and write info header\r
- info.biSize = sizeof(binfo_t);\r
- info.biWidth = bit->width;\r
- info.biHeight = bit->height;\r
- info.biPlanes = 1;\r
- info.biBitCount = bit->bpp;\r
- info.biCompression = xBI_NONE;\r
- info.biSizeImage = bit->width * bit->height;\r
- info.biXPelsPerMeter = 0;\r
- info.biYPelsPerMeter = 0;\r
- info.biClrUsed = 256;\r
- info.biClrImportant = 256;\r
-\r
- if (fwrite(&info, sizeof(binfo_t), 1, f) != 1)\r
- {\r
- Error("fwrite failed.");\r
- }\r
-\r
- // write out palette if we need to\r
- if (bit->bpp == 8)\r
- {\r
- for (i = 0; i < 256; i++)\r
- {\r
- q.red = bit->palette[i].r;\r
- q.green = bit->palette[i].g;\r
- q.blue = bit->palette[i].b;\r
-\r
- fwrite(&q, sizeof(q), 1, f);\r
- }\r
- }\r
-\r
- // save offset to start of bitmap\r
- bmofs = ftell(f);\r
-\r
- // output bitmap\r
- w = bit->width;\r
- h = bit->height;\r
-\r
- for (i = h - 1; i >= 0; i--)\r
- {\r
- BMPEncodeLine(f, &bit->data[w * pixbytes * i], w, pixbytes);\r
- }\r
-\r
- // update and rewrite file header\r
- header.bfType = BMP_SIGNATURE_WORD;\r
- header.bfSize = ftell(f);\r
- header.bfOffBits = bmofs;\r
-\r
- fseek(f, 0L, SEEK_SET);\r
- fwrite(&header, sizeof(header), 1, f);\r
-\r
- fclose(f);\r
-}\r
-\r
-\r
-void NewBMP(int width, int height, int bpp, bitmap_t *bit)\r
-{\r
- int pixbytes;\r
-\r
- if (bpp == 8) pixbytes = 1;\r
- else if (bpp == 24) pixbytes = 3;\r
-\r
- else\r
- {\r
- Error("NewBMP: 8 or 24 bit only.");\r
- }\r
-\r
- bit->bpp = bpp;\r
- bit->width = width;\r
- bit->height = height;\r
-\r
- bit->data = reinterpret_cast<unsigned char*>(g_malloc(width * height * pixbytes));\r
-\r
- if (bit->data == NULL)\r
- {\r
- Error("NewBMP: g_malloc failed.");\r
- }\r
-\r
- // see if we need to create a palette\r
- if (pixbytes == 1)\r
- {\r
- bit->palette = (rgb_t *) g_malloc(768);\r
-\r
- if (bit->palette == NULL)\r
- {\r
- Error("NewBMP: unable to g_malloc palette.");\r
- }\r
- }\r
- else\r
- {\r
- bit->palette = NULL;\r
- }\r
-}\r
-\r
-\r
-\r
-void FreeBMP(bitmap_t *bitmap)\r
-{\r
- if (bitmap->palette)\r
- {\r
- g_free(bitmap->palette);\r
- bitmap->palette = NULL;\r
- }\r
-\r
- if (bitmap->data)\r
- {\r
- g_free(bitmap->data);\r
- bitmap->data = NULL;\r
- }\r
-}\r
-\r
-\r
+/*
+ Copyright (C) 2001-2006, William Joseph.
+ All Rights Reserved.
+
+ This file is part of GtkRadiant.
+
+ GtkRadiant is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ GtkRadiant is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GtkRadiant; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "bmp.h"
+
+#include "ifilesystem.h"
+
+typedef unsigned char byte;
+
+#include "imagelib.h"
+#include "bytestreamutils.h"
+
+
+typedef unsigned char PaletteEntry[4];
+typedef struct
+{
+ char id[2];
+ unsigned long fileSize;
+ unsigned long reserved0;
+ unsigned long bitmapDataOffset;
+ unsigned long bitmapHeaderSize;
+ unsigned long width;
+ unsigned long height;
+ unsigned short planes;
+ unsigned short bitsPerPixel;
+ unsigned long compression;
+ unsigned long bitmapDataSize;
+ unsigned long hRes;
+ unsigned long vRes;
+ unsigned long colors;
+ unsigned long importantColors;
+ PaletteEntry palette[256];
+} BMPHeader_t;
+
+class ReadPixel8
+{
+PaletteEntry* m_palette;
+public:
+ReadPixel8( PaletteEntry* palette ) : m_palette( palette ){
+}
+void operator()( PointerInputStream& inputStream, byte*& pixbuf ) const {
+ byte palIndex;
+ inputStream.read( &palIndex, 1 );
+ *pixbuf++ = m_palette[palIndex][2];
+ *pixbuf++ = m_palette[palIndex][1];
+ *pixbuf++ = m_palette[palIndex][0];
+ *pixbuf++ = 0xff;
+}
+};
+
+class ReadPixel16
+{
+public:
+void operator()( PointerInputStream& inputStream, byte*& pixbuf ) const {
+ unsigned short shortPixel;
+ inputStream.read( reinterpret_cast<byte*>( &shortPixel ), sizeof( unsigned short ) ); //!\todo Is this endian safe?
+ *pixbuf++ = static_cast<byte>( shortPixel & ( 31 << 10 ) ) >> 7;
+ *pixbuf++ = static_cast<byte>( shortPixel & ( 31 << 5 ) ) >> 2;
+ *pixbuf++ = static_cast<byte>( shortPixel & ( 31 ) ) << 3;
+ *pixbuf++ = 0xff;
+}
+};
+
+class ReadPixel24
+{
+public:
+void operator()( PointerInputStream& inputStream, byte*& pixbuf ) const {
+ byte bgr[3];
+ inputStream.read( bgr, 3 );
+ *pixbuf++ = bgr[2];
+ *pixbuf++ = bgr[1];
+ *pixbuf++ = bgr[0];
+ *pixbuf++ = 255;
+}
+};
+
+class ReadPixel32
+{
+public:
+void operator()( PointerInputStream& inputStream, byte*& pixbuf ) const {
+ byte bgra[4];
+ inputStream.read( bgra, 4 );
+ *pixbuf++ = bgra[2];
+ *pixbuf++ = bgra[1];
+ *pixbuf++ = bgra[0];
+ *pixbuf++ = bgra[3];
+}
+};
+
+template<typename ReadPixel>
+void ReadBMP( PointerInputStream& inputStream, byte* bmpRGBA, int rows, int columns, ReadPixel readPixel ){
+ for ( int row = rows - 1; row >= 0; row-- )
+ {
+ byte* pixbuf = bmpRGBA + row * columns * 4;
+
+ for ( int column = 0; column < columns; column++ )
+ {
+ readPixel( inputStream, pixbuf );
+ }
+ }
+}
+
+Image* LoadBMPBuff( PointerInputStream& inputStream, std::size_t length ){
+ BMPHeader_t bmpHeader;
+ inputStream.read( reinterpret_cast<byte*>( bmpHeader.id ), 2 );
+ bmpHeader.fileSize = istream_read_uint32_le( inputStream );
+ bmpHeader.reserved0 = istream_read_uint32_le( inputStream );
+ bmpHeader.bitmapDataOffset = istream_read_uint32_le( inputStream );
+ bmpHeader.bitmapHeaderSize = istream_read_uint32_le( inputStream );
+ bmpHeader.width = istream_read_uint32_le( inputStream );
+ bmpHeader.height = istream_read_uint32_le( inputStream );
+ bmpHeader.planes = istream_read_uint16_le( inputStream );
+ bmpHeader.bitsPerPixel = istream_read_uint16_le( inputStream );
+ bmpHeader.compression = istream_read_uint32_le( inputStream );
+ bmpHeader.bitmapDataSize = istream_read_uint32_le( inputStream );
+ bmpHeader.hRes = istream_read_uint32_le( inputStream );
+ bmpHeader.vRes = istream_read_uint32_le( inputStream );
+ bmpHeader.colors = istream_read_uint32_le( inputStream );
+ bmpHeader.importantColors = istream_read_uint32_le( inputStream );
+
+ if ( bmpHeader.bitsPerPixel == 8 ) {
+ int paletteSize = bmpHeader.colors * 4;
+ inputStream.read( reinterpret_cast<byte*>( bmpHeader.palette ), paletteSize );
+ }
+
+ if ( bmpHeader.id[0] != 'B' && bmpHeader.id[1] != 'M' ) {
+ globalErrorStream() << "LoadBMP: only Windows-style BMP files supported\n";
+ return 0;
+ }
+ if ( bmpHeader.fileSize != length ) {
+ globalErrorStream() << "LoadBMP: header size does not match file size (" << Unsigned( bmpHeader.fileSize ) << " vs. " << Unsigned( length ) << ")\n";
+ return 0;
+ }
+ if ( bmpHeader.compression != 0 ) {
+ globalErrorStream() << "LoadBMP: only uncompressed BMP files supported\n";
+ return 0;
+ }
+ if ( bmpHeader.bitsPerPixel < 8 ) {
+ globalErrorStream() << "LoadBMP: monochrome and 4-bit BMP files not supported\n";
+ return 0;
+ }
+
+ int columns = bmpHeader.width;
+ int rows = bmpHeader.height;
+ if ( rows < 0 ) {
+ rows = -rows;
+ }
+
+ RGBAImage* image = new RGBAImage( columns, rows );
+
+ switch ( bmpHeader.bitsPerPixel )
+ {
+ case 8:
+ ReadBMP( inputStream, image->getRGBAPixels(), rows, columns, ReadPixel8( bmpHeader.palette ) );
+ break;
+ case 16:
+ ReadBMP( inputStream, image->getRGBAPixels(), rows, columns, ReadPixel16() );
+ break;
+ case 24:
+ ReadBMP( inputStream, image->getRGBAPixels(), rows, columns, ReadPixel24() );
+ break;
+ case 32:
+ ReadBMP( inputStream, image->getRGBAPixels(), rows, columns, ReadPixel32() );
+ break;
+ default:
+ globalErrorStream() << "LoadBMP: illegal pixel_size '" << bmpHeader.bitsPerPixel << "'\n";
+ image->release();
+ return 0;
+ }
+ return image;
+}
+
+Image* LoadBMP( ArchiveFile& file ){
+ ScopedArchiveBuffer buffer( file );
+ PointerInputStream inputStream( buffer.buffer );
+ return LoadBMPBuff( inputStream, buffer.length );
+}
projects / xonotic / netradiant.git / blobdiff