/*
* Copyright (C) 2003-2006 Gabest
* http://www.gabest.org
*
* This Program 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, or (at your option)
* any later version.
*
* This Program 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include <stdio.h>
#include <malloc.h>
#include "libpng.h"
#include "..\..\libpng\png.h"
static void read_data_fn(png_structp png_ptr, png_bytep data, png_size_t length)
{
struct png_t* png = (struct png_t*)png_get_progressive_ptr(png_ptr);
if(png->pos + length > png->size) png_error(png_ptr, "Read Error");
memcpy(data, &png->data[png->pos], length);
png->pos += length;
}
unsigned char* DecompressPNG(struct png_t* png, int* w, int* h)
{
png_structp png_ptr;
png_infop info_ptr;
png_infop end_info;
unsigned char* pic;
unsigned char* row;
unsigned int x, y, c;
if(png_sig_cmp(png->data, 0, 8) != 0)
return NULL;
png->pos = 8;
png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
// (png_voidp)user_error_ptr, user_error_fn, user_warning_fn);
if(!png_ptr)
return NULL;
png_set_read_fn(png_ptr, (png_voidp)png, read_data_fn);
info_ptr = png_create_info_struct(png_ptr);
if(!info_ptr)
{
png_destroy_read_struct(&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
return NULL;
}
end_info = png_create_info_struct(png_ptr);
if(!end_info)
{
png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
return NULL;
}
if(setjmp(png_jmpbuf(png_ptr)))
{
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
return NULL;
}
png_set_sig_bytes(png_ptr, 8);
png_read_png(
png_ptr, info_ptr,
PNG_TRANSFORM_STRIP_16 |
PNG_TRANSFORM_STRIP_ALPHA |
PNG_TRANSFORM_PACKING |
PNG_TRANSFORM_EXPAND |
PNG_TRANSFORM_BGR,
NULL);
if(png_get_channels(png_ptr, info_ptr) != 3)
{
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
return NULL;
}
pic = calloc(info_ptr->width * info_ptr->height, 4);
*w = info_ptr->width;
*h = info_ptr->height;
for(y = 0; y < info_ptr->height; y++)
{
row = &pic[y * info_ptr->width * 4];
for(x = 0; x < info_ptr->width*3; row += 4)
{
for(c = 0; c < 3; c++)
{
row[c] = info_ptr->row_pointers[y][x++];
}
}
}
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
return pic;
}
暴风影音源码Media Player Classic
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2008-09-28
17:06:32
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暴风影音源码Media Player Classic （272个子文件） 
ani.avi 15KB
authhdrpic.bmp 56KB streamtypes.bmp 7KB toolbar1.bmp 2KB stereo.bmp 2KB noaudio.bmp 2KB mono.bmp 2KB onoff.bmp 358B
libpng.c 3KB MainFrm.cpp 244KB mplayerc.cpp 81KB PlayerCaptureDialog.cpp 43KB DX7AllocatorPresenter.cpp 36KB PlayerPlaylistBar.cpp 34KB PPageAccelTbl.cpp 32KB ConvertDlg.cpp 32KB LineNumberEdit.cpp 28KB PlayerListCtrl.cpp 20KB PPageFormats.cpp 20KB FakeFilterMapper2.cpp 20KB RealMediaGraph.cpp 19KB PPageExternalFilters.cpp 19KB WebServer.cpp 18KB WebClientSocket.cpp 17KB RealMediaWindowlessSite.cpp 17KB OpenCapDeviceDlg.cpp 17KB BaseGraph.cpp 16KB QuicktimeGraph.cpp 16KB FGFilter.cpp 14KB ShaderAutoCompleteDlg.cpp 13KB IPinHook.cpp 12KB DX9AllocatorPresenter.cpp 12KB ShaderEditorDlg.cpp 10KB PPageAudioSwitcher.cpp 10KB MediaFormats.cpp 10KB PPageInternalFilters.cpp 8KB PPageDVD.cpp 8KB jpeg.cpp 8KB PPageSubStyle.cpp 8KB PlayerStatusBar.cpp 8KB FavoriteOrganizeDlg.cpp 7KB PPageFileInfoDetails.cpp 7KB PlayerSubresyncBar.cpp 7KB ChildView.cpp 7KB TextPassThruFilter.cpp 6KB PlayerSeekBar.cpp 6KB PPageWebServer.cpp 6KB ShockwaveGraph.cpp 6KB PlayerToolBar.cpp 6KB PnSPresetsDlg.cpp 6KB SaveDlg.cpp 6KB ComPropertySheet.cpp 6KB PPageOutput.cpp 6KB PPagePlayback.cpp 6KB StaticLink.cpp 6KB PPagePlayer.cpp 6KB Playlist.cpp 5KB OpenDlg.cpp 5KB ConvertPropsDlg.cpp 5KB PlayerInfoBar.cpp 5KB GoToDlg.cpp 5KB OpenFileDlg.cpp 5KB PPageLogo.cpp 4KB VolumeCtrl.cpp 4KB RegFilterChooserDlg.cpp 4KB MediaTypesDlg.cpp 4KB PPageFileInfoRes.cpp 4KB PPageSubtitles.cpp 4KB DeinterlacerFilter.cpp 4KB PPageTweaks.cpp 4KB AuthDlg.cpp 4KB SubtitleDlDlg.cpp 4KB PPageFileInfoClip.cpp 3KB ConvertResDlg.cpp 3KB FloatEdit.cpp 3KB ShaderCombineDlg.cpp 3KB PixelShaderCompiler.cpp 3KB PPageSubDB.cpp 3KB SaveTextFileDialog.cpp 3KB PPageSheet.cpp 3KB MacrovisionKicker.cpp 3KB StatusLabel.cpp 3KB SelectMediaType.cpp 3KB SaveThumbnailsDialog.cpp 3KB ComPropertyPage.cpp 3KB PPageBase.cpp 2KB FileDropTarget.cpp 2KB ConvertChapDlg.cpp 2KB FavoriteAddDlg.cpp 2KB PlayerShaderEditorBar.cpp 2KB PPageFileInfoSheet.cpp 2KB PlayerCaptureBar.cpp 2KB ISDb.cpp 2KB KeyProvider.cpp 2KB CShockwaveFlash.cpp 1KB StdAfx.cpp 1KB WebServerSocket.cpp 404B UpgradeReport.css 3KB default.css 88B Thumbs.db 48KB共 272 条
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