qzdoom-gpl/src/textures/jpegtexture.cpp

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/*
** jpegtexture.cpp
** Texture class for JPEG images
**
**---------------------------------------------------------------------------
** Copyright 2006-2007 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
**
*/
#include <stdio.h>
extern "C"
{
#include <jpeglib.h>
}
#include "doomtype.h"
#include "files.h"
#include "w_wad.h"
#include "v_text.h"
#include "bitmap.h"
#include "v_video.h"
#include "textures/textures.h"
struct FLumpSourceMgr : public jpeg_source_mgr
{
FileReader *Lump;
JOCTET Buffer[4096];
bool StartOfFile;
FLumpSourceMgr (FileReader *lump, j_decompress_ptr cinfo);
static void InitSource (j_decompress_ptr cinfo);
static boolean FillInputBuffer (j_decompress_ptr cinfo);
static void SkipInputData (j_decompress_ptr cinfo, long num_bytes);
static void TermSource (j_decompress_ptr cinfo);
};
//==========================================================================
//
//
//
//==========================================================================
void FLumpSourceMgr::InitSource (j_decompress_ptr cinfo)
{
((FLumpSourceMgr *)(cinfo->src))->StartOfFile = true;
}
//==========================================================================
//
//
//
//==========================================================================
boolean FLumpSourceMgr::FillInputBuffer (j_decompress_ptr cinfo)
{
FLumpSourceMgr *me = (FLumpSourceMgr *)(cinfo->src);
long nbytes = me->Lump->Read (me->Buffer, sizeof(me->Buffer));
if (nbytes <= 0)
{
me->Buffer[0] = (JOCTET)0xFF;
me->Buffer[1] = (JOCTET)JPEG_EOI;
nbytes = 2;
}
me->next_input_byte = me->Buffer;
me->bytes_in_buffer = nbytes;
me->StartOfFile = false;
return TRUE;
}
//==========================================================================
//
//
//
//==========================================================================
void FLumpSourceMgr::SkipInputData (j_decompress_ptr cinfo, long num_bytes)
{
FLumpSourceMgr *me = (FLumpSourceMgr *)(cinfo->src);
if (num_bytes <= (long)me->bytes_in_buffer)
{
me->bytes_in_buffer -= num_bytes;
me->next_input_byte += num_bytes;
}
else
{
num_bytes -= (long)me->bytes_in_buffer;
me->Lump->Seek (num_bytes, SEEK_CUR);
FillInputBuffer (cinfo);
}
}
//==========================================================================
//
//
//
//==========================================================================
void FLumpSourceMgr::TermSource (j_decompress_ptr cinfo)
{
}
//==========================================================================
//
//
//
//==========================================================================
FLumpSourceMgr::FLumpSourceMgr (FileReader *lump, j_decompress_ptr cinfo)
: Lump (lump)
{
cinfo->src = this;
init_source = InitSource;
fill_input_buffer = FillInputBuffer;
skip_input_data = SkipInputData;
resync_to_restart = jpeg_resync_to_restart;
term_source = TermSource;
bytes_in_buffer = 0;
next_input_byte = NULL;
}
//==========================================================================
//
//
//
//==========================================================================
void JPEG_ErrorExit (j_common_ptr cinfo)
{
(*cinfo->err->output_message) (cinfo);
throw -1;
}
//==========================================================================
//
//
//
//==========================================================================
void JPEG_OutputMessage (j_common_ptr cinfo)
{
char buffer[JMSG_LENGTH_MAX];
(*cinfo->err->format_message) (cinfo, buffer);
Printf (TEXTCOLOR_ORANGE "JPEG failure: %s\n", buffer);
}
//==========================================================================
//
// A JPEG texture
//
//==========================================================================
class FJPEGTexture : public FTexture
{
public:
FJPEGTexture (int lumpnum, int width, int height);
~FJPEGTexture ();
const BYTE *GetColumn (unsigned int column, const Span **spans_out);
const BYTE *GetPixels ();
void Unload ();
FTextureFormat GetFormat ();
int CopyTrueColorPixels(FBitmap *bmp, int x, int y, int rotate, FCopyInfo *inf = NULL);
bool UseBasePalette();
protected:
BYTE *Pixels;
Span DummySpans[2];
void MakeTexture ();
friend class FTexture;
};
//==========================================================================
//
//
//
//==========================================================================
FTexture *JPEGTexture_TryCreate(FileReader & data, int lumpnum)
{
union
{
DWORD dw;
WORD w[2];
BYTE b[4];
} first4bytes;
data.Seek(0, SEEK_SET);
if (data.Read(&first4bytes, 4) < 4) return NULL;
if (first4bytes.b[0] != 0xFF || first4bytes.b[1] != 0xD8 || first4bytes.b[2] != 0xFF)
return NULL;
// Find the SOFn marker to extract the image dimensions,
// where n is 0, 1, or 2 (other types are unsupported).
while ((unsigned)first4bytes.b[3] - 0xC0 >= 3)
{
if (data.Read (first4bytes.w, 2) != 2)
{
return NULL;
}
data.Seek (BigShort(first4bytes.w[0]) - 2, SEEK_CUR);
if (data.Read (first4bytes.b + 2, 2) != 2 || first4bytes.b[2] != 0xFF)
{
return NULL;
}
}
if (data.Read (first4bytes.b, 3) != 3)
{
return NULL;
}
if (BigShort (first4bytes.w[0]) < 5)
{
return NULL;
}
if (data.Read (first4bytes.b, 4) != 4)
{
return NULL;
}
return new FJPEGTexture (lumpnum, BigShort(first4bytes.w[1]), BigShort(first4bytes.w[0]));
}
//==========================================================================
//
//
//
//==========================================================================
FJPEGTexture::FJPEGTexture (int lumpnum, int width, int height)
: FTexture(NULL, lumpnum), Pixels(0)
{
UseType = TEX_MiscPatch;
LeftOffset = 0;
TopOffset = 0;
bMasked = false;
Width = width;
Height = height;
CalcBitSize ();
DummySpans[0].TopOffset = 0;
DummySpans[0].Length = Height;
DummySpans[1].TopOffset = 0;
DummySpans[1].Length = 0;
}
//==========================================================================
//
//
//
//==========================================================================
FJPEGTexture::~FJPEGTexture ()
{
Unload ();
}
//==========================================================================
//
//
//
//==========================================================================
void FJPEGTexture::Unload ()
{
if (Pixels != NULL)
{
delete[] Pixels;
Pixels = NULL;
}
}
//==========================================================================
//
//
//
//==========================================================================
FTextureFormat FJPEGTexture::GetFormat()
{
return TEX_RGB;
}
//==========================================================================
//
//
//
//==========================================================================
const BYTE *FJPEGTexture::GetColumn (unsigned int column, const Span **spans_out)
{
if (Pixels == NULL)
{
MakeTexture ();
}
if ((unsigned)column >= (unsigned)Width)
{
if (WidthMask + 1 == Width)
{
column &= WidthMask;
}
else
{
column %= Width;
}
}
if (spans_out != NULL)
{
*spans_out = DummySpans;
}
return Pixels + column*Height;
}
//==========================================================================
//
//
//
//==========================================================================
const BYTE *FJPEGTexture::GetPixels ()
{
if (Pixels == NULL)
{
MakeTexture ();
}
return Pixels;
}
//==========================================================================
//
//
//
//==========================================================================
void FJPEGTexture::MakeTexture ()
{
FWadLump lump = Wads.OpenLumpNum (SourceLump);
JSAMPLE *buff = NULL;
jpeg_decompress_struct cinfo;
jpeg_error_mgr jerr;
Pixels = new BYTE[Width * Height];
memset (Pixels, 0xBA, Width * Height);
cinfo.err = jpeg_std_error(&jerr);
cinfo.err->output_message = JPEG_OutputMessage;
cinfo.err->error_exit = JPEG_ErrorExit;
jpeg_create_decompress(&cinfo);
try
{
FLumpSourceMgr sourcemgr(&lump, &cinfo);
jpeg_read_header(&cinfo, TRUE);
if (!((cinfo.out_color_space == JCS_RGB && cinfo.num_components == 3) ||
(cinfo.out_color_space == JCS_CMYK && cinfo.num_components == 4) ||
(cinfo.out_color_space == JCS_GRAYSCALE && cinfo.num_components == 1)))
{
Printf (TEXTCOLOR_ORANGE "Unsupported color format\n");
throw -1;
}
jpeg_start_decompress(&cinfo);
int y = 0;
buff = new BYTE[cinfo.output_width * cinfo.output_components];
while (cinfo.output_scanline < cinfo.output_height)
{
int num_scanlines = jpeg_read_scanlines(&cinfo, &buff, 1);
BYTE *in = buff;
BYTE *out = Pixels + y;
switch (cinfo.out_color_space)
{
case JCS_RGB:
for (int x = Width; x > 0; --x)
{
*out = RGB32k[in[0]>>3][in[1]>>3][in[2]>>3];
out += Height;
in += 3;
}
break;
case JCS_GRAYSCALE:
for (int x = Width; x > 0; --x)
{
*out = GrayMap[in[0]];
out += Height;
in += 1;
}
break;
case JCS_CMYK:
// What are you doing using a CMYK image? :)
for (int x = Width; x > 0; --x)
{
// To be precise, these calculations should use 255, but
// 256 is much faster and virtually indistinguishable.
int r = in[3] - (((256-in[0])*in[3]) >> 8);
int g = in[3] - (((256-in[1])*in[3]) >> 8);
int b = in[3] - (((256-in[2])*in[3]) >> 8);
*out = RGB32k[r >> 3][g >> 3][b >> 3];
out += Height;
in += 4;
}
break;
default:
// The other colorspaces were considered above and discarded,
// but GCC will complain without a default for them here.
break;
}
y++;
}
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
}
catch (int)
{
Printf (TEXTCOLOR_ORANGE " in texture %s\n", Name.GetChars());
jpeg_destroy_decompress(&cinfo);
}
if (buff != NULL)
{
delete[] buff;
}
}
//===========================================================================
//
// FJPEGTexture::CopyTrueColorPixels
//
// Preserves the full color information (unlike software mode)
//
//===========================================================================
int FJPEGTexture::CopyTrueColorPixels(FBitmap *bmp, int x, int y, int rotate, FCopyInfo *inf)
{
PalEntry pe[256];
FWadLump lump = Wads.OpenLumpNum (SourceLump);
JSAMPLE *buff = NULL;
jpeg_decompress_struct cinfo;
jpeg_error_mgr jerr;
cinfo.err = jpeg_std_error(&jerr);
cinfo.err->output_message = JPEG_OutputMessage;
cinfo.err->error_exit = JPEG_ErrorExit;
jpeg_create_decompress(&cinfo);
try
{
FLumpSourceMgr sourcemgr(&lump, &cinfo);
jpeg_read_header(&cinfo, TRUE);
if (!((cinfo.out_color_space == JCS_RGB && cinfo.num_components == 3) ||
(cinfo.out_color_space == JCS_CMYK && cinfo.num_components == 4) ||
(cinfo.out_color_space == JCS_GRAYSCALE && cinfo.num_components == 1)))
{
Printf (TEXTCOLOR_ORANGE "Unsupported color format\n");
throw -1;
}
jpeg_start_decompress(&cinfo);
int yc = 0;
buff = new BYTE[cinfo.output_height * cinfo.output_width * cinfo.output_components];
while (cinfo.output_scanline < cinfo.output_height)
{
BYTE * ptr = buff + cinfo.output_width * cinfo.output_components * yc;
jpeg_read_scanlines(&cinfo, &ptr, 1);
yc++;
}
switch (cinfo.out_color_space)
{
case JCS_RGB:
bmp->CopyPixelDataRGB(x, y, buff, cinfo.output_width, cinfo.output_height,
3, cinfo.output_width * cinfo.output_components, rotate, CF_RGB, inf);
break;
case JCS_GRAYSCALE:
for(int i=0;i<256;i++) pe[i]=PalEntry(255,i,i,i); // default to a gray map
bmp->CopyPixelData(x, y, buff, cinfo.output_width, cinfo.output_height,
1, cinfo.output_width, rotate, pe, inf);
break;
case JCS_CMYK:
bmp->CopyPixelDataRGB(x, y, buff, cinfo.output_width, cinfo.output_height,
4, cinfo.output_width * cinfo.output_components, rotate, CF_CMYK, inf);
break;
default:
assert(0);
break;
}
jpeg_finish_decompress(&cinfo);
}
catch(int)
{
Printf (TEXTCOLOR_ORANGE " in JPEG texture %s\n", Name.GetChars());
}
jpeg_destroy_decompress(&cinfo);
if (buff != NULL) delete [] buff;
return 0;
}
//===========================================================================
//
//
//===========================================================================
bool FJPEGTexture::UseBasePalette()
{
return false;
}