/*
-Copyright (C) 1999-2007 id Software, Inc. and contributors.
-For a list of contributors, see the accompanying CONTRIBUTORS file.
+ Copyright (C) 2001-2006, William Joseph.
+ All Rights Reserved.
-This file is part of GtkRadiant.
+ 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 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.
+ 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
-*/
+ 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 <stdio.h>
-#include <string.h>
-#include <glib.h>
#include "bmp.h"
-#include "image.h"
+#include "ifilesystem.h"
-static void BMPLineNone(FILE *f, char *sline, int pixbytes, int width)
-{
- int nbytes, i, k, j;
-
- switch (pixbytes)
- {
- case 1 :
- nbytes = (width + 3) / 4;
- nbytes *= 4;
-
- fread(sline, width, 1, f);
- nbytes -= width;
-
- while (nbytes-- > 0) fgetc(f);
- return;
-
- case 3 :
- nbytes = ((width * 3) + 3) / 4;
- nbytes *= 4;
+typedef unsigned char byte;
- fread(sline, width, 3, f);
- nbytes -= width * 3;
-
- while (nbytes-- > 0) fgetc(f);
-
- // reorder bgr to rgb
- for (i = 0, j = 0; i < width; i++, j += 3)
- {
- k = sline[j];
- sline[j] = sline[j+2];
- sline[j+2] = k;
- }
-
- return;
- }
-
- Error("BMPLineNone failed.");
-}
+#include "imagelib.h"
+#include "bytestreamutils.h"
-static void BMPLineRLE8(FILE *f, char *sline, int pixbytes, int width)
+typedef unsigned char PaletteEntry[4];
+typedef struct
{
- Error("RLE8 not yet supported.");
-}
-
-
-static void BMPLineRLE4(FILE *f, char *sline, int pixbytes, int width)
+ 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
{
- Error("RLE4 not yet supported.");
+PaletteEntry* m_palette;
+public:
+ReadPixel8( PaletteEntry* palette ) : m_palette( palette ){
}
-
-
-static void BMPLine(FILE *f, char *scanline, int pixbytes, int width, int rle)
-{
- switch (rle)
- {
- case xBI_NONE : BMPLineNone(f, scanline, pixbytes, width); return;
- case xBI_RLE8 : BMPLineRLE8(f, scanline, pixbytes, width); return;
- case xBI_RLE4 : BMPLineRLE4(f, scanline, pixbytes, width); return;
- }
-
- Error("Unknown compression type.");
+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;
}
+};
-
-/*
-static void PrintHeader(binfo_t *b)
+class ReadPixel16
{
- printf("biSize : %ld\n", b->biSize);
- printf("biWidth : %ld\n", b->biWidth);
- printf("biHeight : %ld\n", b->biHeight);
- printf("biPlanes : %d\n", b->biPlanes);
- printf("biBitCount : %d\n", b->biBitCount);
- printf("biCompression : %ld\n", b->biCompression);
- printf("biSizeImage : %ld\n", b->biSizeImage);
- printf("biXPelsPerMeter: %ld\n", b->biXPelsPerMeter);
- printf("biYPelsPerMeter: %ld\n", b->biYPelsPerMeter);
- printf("biClrUsed : %ld\n", b->biClrUsed);
- printf("biClrImportant : %ld\n", b->biClrImportant);
+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;
}
-*/
+};
-// FIXME: calls to Error(const char *, ... ) are dependant on qe3.cpp
-void LoadBMP(char *filename, bitmap_t *bit)
+class ReadPixel24
{
- FILE *f;
- bmphd_t bhd;
- binfo_t info;
- // int pxlsize = 1;
- int rowbytes, i, pixbytes;
- char *scanline;
-
- // open file
- if ((f = fopen(filename, "rb")) == NULL)
- {
- Error("Unable to open file");// %s.", filename);
- }
-
- // read in bitmap header
- if (fread(&bhd, sizeof(bhd), 1, f) != 1)
- {
- fclose(f);
- Error("Unable to read in bitmap header.");
- }
-
- // make sure we have a valid bitmap file
- if (bhd.bfType != BMP_SIGNATURE_WORD)
- {
- fclose(f);
- Error("Invalid BMP file");//: %s", filename);
- }
-
- // load in info header
- if (fread(&info, sizeof(info), 1, f) != 1)
- {
- fclose(f);
- Error("Unable to read bitmap info header.");
- }
-
- // make sure this is an info type of bitmap
- if (info.biSize != sizeof(binfo_t))
- {
- fclose(f);
- Error("We only support the info bitmap type.");
- }
-
- // PrintHeader(&info);
-
- bit->bpp = info.biBitCount;
- bit->width = info.biWidth;
- bit->height = info.biHeight;
- bit->data = NULL;
- bit->palette = NULL;
-
- //currently we only read in 8 and 24 bit bmp files
- if (info.biBitCount == 8) pixbytes = 1;
- else if (info.biBitCount == 24) pixbytes = 3;
- else
- {
- Error("Only 8BPP and 24BPP supported");
- //Error("BPP %d not supported.", info.biBitCount);
- }
-
- // if this is an eight bit image load palette
- if (pixbytes == 1)
- {
- drgb_t q;
-
- bit->palette = reinterpret_cast<rgb_t*>(g_malloc(sizeof(rgb_t) * 256));
-
- for (i = 0; i < 256; i++)
- {
- if (fread(&q, sizeof(drgb_t), 1, f) != 1)
- {
- fclose(f); g_free(bit->palette);
- Error("Unable to read palette.");
- }
-
- bit->palette[i].r = q.red;
- bit->palette[i].g = q.green;
- bit->palette[i].b = q.blue;
- }
- }
-
- // position to start of bitmap
- fseek(f, bhd.bfOffBits, SEEK_SET);
-
- // create scanline to read data into
- rowbytes = ((info.biWidth * pixbytes) + 3) / 4;
- rowbytes *= 4;
-
- scanline = reinterpret_cast<char*>(g_malloc(rowbytes));
-
- // alloc space for new bitmap
- bit->data = reinterpret_cast<unsigned char*>(g_malloc(info.biWidth * pixbytes * info.biHeight));
-
- // read in image
- for (i = 0; i < info.biHeight; i++)
- {
- BMPLine(f, scanline, pixbytes, info.biWidth, info.biCompression);
-
- // store line
- memcpy(&bit->data[info.biWidth * pixbytes * (info.biHeight - i - 1)], scanline, info.biWidth * pixbytes);
- }
-
- g_free(scanline);
- fclose(f);
+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;
}
+};
-
-
-static void BMPEncodeLine(FILE *f, unsigned char *data, int npxls, int pixbytes)
+class ReadPixel32
{
- int nbytes, i, j, k;
-
- switch (pixbytes)
- {
- case 1 :
- nbytes = (npxls + 3) / 4;
- nbytes *= 4;
-
- fwrite(data, npxls, 1, f);
- nbytes -= npxls;
-
- while (nbytes-- > 0) fputc(0, f);
- return;
-
- case 3 :
- // reorder rgb to bgr
- for (i = 0, j = 0; i < npxls; i++, j+= 3)
- {
- k = data[j];
- data[j] = data[j + 2];
- data[j + 2] = k;
- }
-
- nbytes = ((npxls * 3) + 3) / 4;
- nbytes *= 4;
-
- fwrite(data, npxls, 3, f);
- nbytes -= npxls * 3;
-
- while (nbytes-- > 0) fputc(0, f);
- return;
- }
-
- Error("BMPEncodeLine Failed.");
+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];
}
+};
-
-
-void WriteBMP(char *filename, bitmap_t *bit)
-{
- FILE *f;
- bmphd_t header;
- binfo_t info;
- drgb_t q; // palette that gets written
- long bmofs;
- int w, h, i;
- int pixbytes;
-
- if (bit->bpp == 8) pixbytes = 1;
- else if (bit->bpp == 24) pixbytes = 3;
-
- else
- {
- Error("Only 8BPP and 24BPP supported");
- //Error("BPP %d not supported.", bit->bpp);
- }
-
-
- if ((f = fopen(filename, "wb")) == NULL)
- {
- Error("Unable to open file");//%s.", filename);
- }
-
- // write out an empty header as a place holder
- if (fwrite(&header, sizeof(header), 1, f) != 1)
- {
- Error("Unable to fwrite.");
- }
-
- // init and write info header
- info.biSize = sizeof(binfo_t);
- info.biWidth = bit->width;
- info.biHeight = bit->height;
- info.biPlanes = 1;
- info.biBitCount = bit->bpp;
- info.biCompression = xBI_NONE;
- info.biSizeImage = bit->width * bit->height;
- info.biXPelsPerMeter = 0;
- info.biYPelsPerMeter = 0;
- info.biClrUsed = 256;
- info.biClrImportant = 256;
-
- if (fwrite(&info, sizeof(binfo_t), 1, f) != 1)
- {
- Error("fwrite failed.");
- }
-
- // write out palette if we need to
- if (bit->bpp == 8)
+template<typename ReadPixel>
+void ReadBMP( PointerInputStream& inputStream, byte* bmpRGBA, int rows, int columns, ReadPixel readPixel ){
+ for ( int row = rows - 1; row >= 0; row-- )
{
- for (i = 0; i < 256; i++)
- {
- q.red = bit->palette[i].r;
- q.green = bit->palette[i].g;
- q.blue = bit->palette[i].b;
+ byte* pixbuf = bmpRGBA + row * columns * 4;
- fwrite(&q, sizeof(q), 1, f);
+ for ( int column = 0; column < columns; column++ )
+ {
+ readPixel( inputStream, pixbuf );
}
- }
-
- // save offset to start of bitmap
- bmofs = ftell(f);
-
- // output bitmap
- w = bit->width;
- h = bit->height;
-
- for (i = h - 1; i >= 0; i--)
- {
- BMPEncodeLine(f, &bit->data[w * pixbytes * i], w, pixbytes);
- }
-
- // update and rewrite file header
- header.bfType = BMP_SIGNATURE_WORD;
- header.bfSize = ftell(f);
- header.bfOffBits = bmofs;
-
- fseek(f, 0L, SEEK_SET);
- fwrite(&header, sizeof(header), 1, f);
-
- fclose(f);
+ }
}
-
-void NewBMP(int width, int height, int bpp, bitmap_t *bit)
-{
- int pixbytes;
-
- if (bpp == 8) pixbytes = 1;
- else if (bpp == 24) pixbytes = 3;
-
- else
- {
- Error("NewBMP: 8 or 24 bit only.");
+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 );
}
- bit->bpp = bpp;
- bit->width = width;
- bit->height = height;
-
- bit->data = reinterpret_cast<unsigned char*>(g_malloc(width * height * pixbytes));
+ 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;
+ }
- if (bit->data == NULL)
- {
- Error("NewBMP: g_malloc failed.");
+ int columns = bmpHeader.width;
+ int rows = bmpHeader.height;
+ if ( rows < 0 ) {
+ rows = -rows;
}
- // see if we need to create a palette
- if (pixbytes == 1)
- {
- bit->palette = (rgb_t *) g_malloc(768);
+ RGBAImage* image = new RGBAImage( columns, rows );
- if (bit->palette == NULL)
- {
- Error("NewBMP: unable to g_malloc palette.");
- }
- }
- else
+ switch ( bmpHeader.bitsPerPixel )
{
- bit->palette = NULL;
+ 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;
}
-
-
-void FreeBMP(bitmap_t *bitmap)
-{
- if (bitmap->palette)
- {
- g_free(bitmap->palette);
- bitmap->palette = NULL;
- }
-
- if (bitmap->data)
- {
- g_free(bitmap->data);
- bitmap->data = NULL;
- }
+Image* LoadBMP( ArchiveFile& file ){
+ ScopedArchiveBuffer buffer( file );
+ PointerInputStream inputStream( buffer.buffer );
+ return LoadBMPBuff( inputStream, buffer.length );
}
-
-
projects / xonotic / netradiant.git / blobdiff