mirror of https://github.com/ZDoom/raze-gles.git
463 lines
12 KiB
C++
463 lines
12 KiB
C++
/*
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** jpegtexture.cpp
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** Texture class for JPEG images
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**
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**---------------------------------------------------------------------------
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** Copyright 2005-2016 Randy Heit
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** Copyright 2005-2019 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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**
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*/
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#include <stdio.h>
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#include "files.h"
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#include "printf.h"
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#include "bitmap.h"
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#include "image.h"
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#include "filesystem/filesystem.h"
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#include "imagehelpers.h"
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#include "v_text.h"
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extern "C"
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{
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#include <jpeglib.h>
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}
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struct FLumpSourceMgr : public jpeg_source_mgr
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{
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FileReader *Lump;
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JOCTET Buffer[4096];
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bool StartOfFile;
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FLumpSourceMgr (FileReader *lump, j_decompress_ptr cinfo);
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static void InitSource (j_decompress_ptr cinfo);
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static boolean FillInputBuffer (j_decompress_ptr cinfo);
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static void SkipInputData (j_decompress_ptr cinfo, long num_bytes);
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static void TermSource (j_decompress_ptr cinfo);
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};
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FLumpSourceMgr::InitSource (j_decompress_ptr cinfo)
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{
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((FLumpSourceMgr *)(cinfo->src))->StartOfFile = true;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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boolean FLumpSourceMgr::FillInputBuffer (j_decompress_ptr cinfo)
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{
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FLumpSourceMgr *me = (FLumpSourceMgr *)(cinfo->src);
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auto nbytes = me->Lump->Read (me->Buffer, sizeof(me->Buffer));
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if (nbytes <= 0)
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{
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me->Buffer[0] = (JOCTET)0xFF;
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me->Buffer[1] = (JOCTET)JPEG_EOI;
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nbytes = 2;
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}
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me->next_input_byte = me->Buffer;
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me->bytes_in_buffer = nbytes;
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me->StartOfFile = false;
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return TRUE;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FLumpSourceMgr::SkipInputData (j_decompress_ptr cinfo, long num_bytes)
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{
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FLumpSourceMgr *me = (FLumpSourceMgr *)(cinfo->src);
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if (num_bytes <= (long)me->bytes_in_buffer)
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{
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me->bytes_in_buffer -= num_bytes;
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me->next_input_byte += num_bytes;
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}
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else
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{
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num_bytes -= (long)me->bytes_in_buffer;
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me->Lump->Seek (num_bytes, FileReader::SeekCur);
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FillInputBuffer (cinfo);
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FLumpSourceMgr::TermSource (j_decompress_ptr cinfo)
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{
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FLumpSourceMgr::FLumpSourceMgr (FileReader *lump, j_decompress_ptr cinfo)
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: Lump (lump)
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{
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cinfo->src = this;
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init_source = InitSource;
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fill_input_buffer = FillInputBuffer;
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skip_input_data = SkipInputData;
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resync_to_restart = jpeg_resync_to_restart;
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term_source = TermSource;
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bytes_in_buffer = 0;
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next_input_byte = NULL;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void JPEG_ErrorExit (j_common_ptr cinfo)
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{
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(*cinfo->err->output_message) (cinfo);
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throw -1;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void JPEG_OutputMessage (j_common_ptr cinfo)
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{
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char buffer[JMSG_LENGTH_MAX];
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(*cinfo->err->format_message) (cinfo, buffer);
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Printf (TEXTCOLOR_ORANGE "JPEG failure: %s\n", buffer);
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}
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//==========================================================================
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//
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// A JPEG texture
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//
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//==========================================================================
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class FJPEGTexture : public FImageSource
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{
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public:
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FJPEGTexture (int width, int height);
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void CreatePalettedPixels(uint8_t* destbuffer) override;
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int CopyPixels(FBitmap *bmp, int conversion) override;
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};
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FImageSource *JPEGImage_TryCreate(FileReader & data)
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{
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union
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{
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uint32_t dw;
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uint16_t w[2];
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uint8_t b[4];
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} first4bytes;
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data.Seek(0, FileReader::SeekSet);
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if (data.Read(&first4bytes, 4) < 4) return NULL;
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if (first4bytes.b[0] != 0xFF || first4bytes.b[1] != 0xD8 || first4bytes.b[2] != 0xFF)
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return NULL;
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// Find the SOFn marker to extract the image dimensions,
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// where n is 0, 1, or 2 (other types are unsupported).
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while ((unsigned)first4bytes.b[3] - 0xC0 >= 3)
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{
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if (data.Read (first4bytes.w, 2) != 2)
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{
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return NULL;
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}
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data.Seek (BigShort(first4bytes.w[0]) - 2, FileReader::SeekCur);
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if (data.Read (first4bytes.b + 2, 2) != 2 || first4bytes.b[2] != 0xFF)
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{
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return NULL;
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}
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}
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if (data.Read (first4bytes.b, 3) != 3)
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{
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return NULL;
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}
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if (BigShort (first4bytes.w[0]) < 5)
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{
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return NULL;
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}
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if (data.Read (first4bytes.b, 4) != 4)
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{
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return NULL;
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}
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return new FJPEGTexture (BigShort(first4bytes.w[1]), BigShort(first4bytes.w[0]));
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FJPEGTexture::FJPEGTexture (int width, int height)
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{
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bMasked = false;
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Width = width;
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Height = height;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FJPEGTexture::CreatePalettedPixels(uint8_t *buffer)
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{
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auto lump = fileSystem.OpenFileReader(Name, 0);
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if (!lump.isOpen()) return; // Just leave the texture blank.
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JSAMPLE *buff = NULL;
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jpeg_decompress_struct cinfo;
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jpeg_error_mgr jerr;
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TArray<uint8_t> Pixels(Width * Height, true);
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memset (Pixels.Data(), 0xBA, Width * Height);
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cinfo.err = jpeg_std_error(&jerr);
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cinfo.err->output_message = JPEG_OutputMessage;
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cinfo.err->error_exit = JPEG_ErrorExit;
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jpeg_create_decompress(&cinfo);
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FLumpSourceMgr sourcemgr(&lump, &cinfo);
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try
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{
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jpeg_read_header(&cinfo, TRUE);
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if (!((cinfo.out_color_space == JCS_RGB && cinfo.num_components == 3) ||
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(cinfo.out_color_space == JCS_CMYK && cinfo.num_components == 4) ||
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(cinfo.out_color_space == JCS_YCbCr && cinfo.num_components == 3) ||
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(cinfo.out_color_space == JCS_GRAYSCALE && cinfo.num_components == 1)))
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{
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Printf(TEXTCOLOR_ORANGE "Unsupported color format in %s\n", Name.GetChars());
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}
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else
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{
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jpeg_start_decompress(&cinfo);
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int y = 0;
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buff = new uint8_t[cinfo.output_width * cinfo.output_components];
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while (cinfo.output_scanline < cinfo.output_height)
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{
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int num_scanlines = jpeg_read_scanlines(&cinfo, &buff, 1);
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uint8_t *in = buff;
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uint8_t *out = Pixels.Data() + y;
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switch (cinfo.out_color_space)
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{
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case JCS_RGB:
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for (int x = Width; x > 0; --x)
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{
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*out = ImageHelpers::RGBToPalette(false, in[0], in[1], in[2]);
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out += Height;
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in += 3;
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}
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break;
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case JCS_GRAYSCALE:
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{
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auto remap = ImageHelpers::GetGraymap();
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for (int x = Width; x > 0; --x)
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{
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*out = remap[in[0]];
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out += Height;
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in += 1;
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}
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break;
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}
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case JCS_CMYK:
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// What are you doing using a CMYK image? :)
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for (int x = Width; x > 0; --x)
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{
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// To be precise, these calculations should use 255, but
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// 256 is much faster and virtually indistinguishable.
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int r = in[3] - (((256 - in[0])*in[3]) >> 8);
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int g = in[3] - (((256 - in[1])*in[3]) >> 8);
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int b = in[3] - (((256 - in[2])*in[3]) >> 8);
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*out = ImageHelpers::RGBToPalette(false, r, g, b);
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out += Height;
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in += 4;
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}
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break;
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case JCS_YCbCr:
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// Probably useless but since I had the formula available...
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for (int x = Width; x > 0; --x)
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{
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double Y = in[0], Cb = in[1], Cr = in[2];
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int r = clamp((int)(Y + 1.40200 * (Cr - 0x80)), 0, 255);
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int g = clamp((int)(Y - 0.34414 * (Cb - 0x80) - 0.71414 * (Cr - 0x80)), 0, 255);
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int b = clamp((int)(Y + 1.77200 * (Cb - 0x80)), 0, 255);
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*out = ImageHelpers::RGBToPalette(false, r, g, b);
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out += Height;
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in += 4;
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}
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break;
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default:
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// The other colorspaces were considered above and discarded,
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// but GCC will complain without a default for them here.
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break;
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}
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y++;
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}
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jpeg_finish_decompress(&cinfo);
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}
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}
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catch (int)
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{
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Printf(TEXTCOLOR_ORANGE "JPEG error in %s\n", Name.GetChars());
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}
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jpeg_destroy_decompress(&cinfo);
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if (buff != NULL)
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{
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delete[] buff;
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}
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}
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//===========================================================================
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//
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// FJPEGTexture::CopyPixels
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//
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// Preserves the full color information (unlike software mode)
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//
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//===========================================================================
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int FJPEGTexture::CopyPixels(FBitmap *bmp, int conversion)
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{
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PalEntry pe[256];
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auto lump = fileSystem.OpenFileReader(Name, 0);
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if (!lump.isOpen()) return -1; // Just leave the texture blank.
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jpeg_decompress_struct cinfo;
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jpeg_error_mgr jerr;
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cinfo.err = jpeg_std_error(&jerr);
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cinfo.err->output_message = JPEG_OutputMessage;
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cinfo.err->error_exit = JPEG_ErrorExit;
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jpeg_create_decompress(&cinfo);
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FLumpSourceMgr sourcemgr(&lump, &cinfo);
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try
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{
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jpeg_read_header(&cinfo, TRUE);
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if (!((cinfo.out_color_space == JCS_RGB && cinfo.num_components == 3) ||
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(cinfo.out_color_space == JCS_CMYK && cinfo.num_components == 4) ||
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(cinfo.out_color_space == JCS_YCbCr && cinfo.num_components == 3) ||
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(cinfo.out_color_space == JCS_GRAYSCALE && cinfo.num_components == 1)))
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{
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Printf(TEXTCOLOR_ORANGE "Unsupported color format in %s\n", Name.GetChars());
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}
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else
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{
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jpeg_start_decompress(&cinfo);
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int yc = 0;
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TArray<uint8_t> buff(cinfo.output_height * cinfo.output_width * cinfo.output_components, true);
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while (cinfo.output_scanline < cinfo.output_height)
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{
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uint8_t * ptr = buff.Data() + cinfo.output_width * cinfo.output_components * yc;
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jpeg_read_scanlines(&cinfo, &ptr, 1);
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yc++;
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}
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switch (cinfo.out_color_space)
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{
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case JCS_RGB:
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bmp->CopyPixelDataRGB(0, 0, buff.Data(), cinfo.output_width, cinfo.output_height,
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3, cinfo.output_width * cinfo.output_components, 0, CF_RGB);
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break;
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case JCS_GRAYSCALE:
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for (int i = 0; i < 256; i++) pe[i] = PalEntry(255, i, i, i); // default to a gray map
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bmp->CopyPixelData(0, 0, buff.Data(), cinfo.output_width, cinfo.output_height,
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1, cinfo.output_width, 0, pe);
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break;
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case JCS_CMYK:
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bmp->CopyPixelDataRGB(0, 0, buff.Data(), cinfo.output_width, cinfo.output_height,
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4, cinfo.output_width * cinfo.output_components, 0, CF_CMYK);
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break;
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case JCS_YCbCr:
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bmp->CopyPixelDataRGB(0, 0, buff.Data(), cinfo.output_width, cinfo.output_height,
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4, cinfo.output_width * cinfo.output_components, 0, CF_YCbCr);
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break;
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default:
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assert(0);
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break;
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}
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jpeg_finish_decompress(&cinfo);
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}
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}
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catch (int)
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{
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Printf(TEXTCOLOR_ORANGE "JPEG error in %s\n", Name.GetChars());
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}
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jpeg_destroy_decompress(&cinfo);
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return 0;
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}
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