33bbe22391
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@11972 a95241bf-73f2-0310-859d-f6bbb57e9c96
113 lines
3.2 KiB
C++
113 lines
3.2 KiB
C++
//------------------------------------------------------------------------------
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// Copyright (c) 2001-2002, Haiku, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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// File Name: PNGDump.cpp
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// Author: DarkWyrm <bpmagic@columbus.rr.com>
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// Description: Function for saving a generic framebuffer to a PNG file
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//
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//------------------------------------------------------------------------------
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#include <Rect.h>
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#include <Bitmap.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <png.h>
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#include <ColorUtils.h>
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#include "PNGDump.h"
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#define DEBUG_PNGDUMP
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void SaveToPNG(const char *filename, const BRect &bounds, color_space space,
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const void *bits, const int32 &bitslength, const int32 bytesperrow)
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{
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#ifdef DEBUG_PNGDUMP
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printf("SaveToPNG: %s ",filename);
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bounds.PrintToStream();
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#endif
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FILE *fp;
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png_structp png_ptr;
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png_infop info_ptr;
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fp=fopen(filename, "wb");
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if(fp==NULL)
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{
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#ifdef DEBUG_PNGDUMP
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printf("Couldn't open file\n");
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#endif
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return;
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}
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png_ptr=png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
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if(png_ptr==NULL)
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{
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#ifdef DEBUG_PNGDUMP
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printf("Couldn't create write struct\n");
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#endif
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fclose(fp);
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return;
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}
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info_ptr=png_create_info_struct(png_ptr);
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if(info_ptr==NULL)
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{
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#ifdef DEBUG_PNGDUMP
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printf("Couldn't create info struct\n");
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#endif
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fclose(fp);
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png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
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return;
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}
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if(setjmp(png_ptr->jmpbuf))
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{
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#ifdef DEBUG_PNGDUMP
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printf("Couldn't set jump\n");
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#endif
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fclose(fp);
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png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
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return;
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}
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png_init_io(png_ptr, fp);
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png_set_compression_level(png_ptr,Z_NO_COMPRESSION);
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png_set_bgr(png_ptr);
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png_set_IHDR(png_ptr, info_ptr, bounds.IntegerWidth(), bounds.IntegerHeight(), 8, PNG_COLOR_TYPE_RGB_ALPHA,
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PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
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png_write_info(png_ptr, info_ptr);
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png_byte *row_pointers[bounds.IntegerHeight()];
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png_byte *index=(png_byte*)bits;
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for(int32 i=0;i<bounds.IntegerHeight();i++)
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{
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row_pointers[i]=index;
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index+=bytesperrow;
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}
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png_write_image(png_ptr, row_pointers);
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png_write_end(png_ptr, info_ptr);
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png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
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fclose(fp);
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}
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