//// imgapi.c: The GIF and JPG Image Support API module.//// Copyright (C) 1999, Li Zhuo.// Copyright (C) 1999, 2000, EESG of ICT.//// Current maintainer: Wei Yongming./***  This library is free software; you can redistribute it and/or**  modify it under the terms of the GNU Library General Public**  License as published by the Free Software Foundation; either**  version 2 of the License, or (at your option) any later version.****  This library 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**  Library General Public License for more details.****  You should have received a copy of the GNU Library General Public**  License along with this library; if not, write to the Free**  Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,**  MA 02111-1307, USA*/// Create date: 1999.04.19//// Modify records:////  Who             When        Where       For What                Status//-----------------------------------------------------------------------------//// TODO://#include <stdio.h>#include <stddef.h>#include <stdlib.h>#ifndef __ECOS# include <malloc.h>#endif#include <string.h>#include <pthread.h>#include <semaphore.h>#include "common.h"#include "gdi.h"#include "gif.h"#include "jpg.h"#ifndef lintstatic char fileid[] = "$Id: imgapi.c,v 1.4 2000/08/28 03:08:22 weiym Exp $";#endifint GUIAPI CreateBitmapFromGIFMemory (HDC hdc, PBITMAP pBitmap, void* buffer, int buffer_length){    unsigned char* pBmpSurface;    unsigned char* pGifSurface;    int i,j;    int bpp = GetGDCapability (hdc, GDCAP_BPP);    gif_info_t *ginfo;    ginfo = (gif_info_t*)calloc(1, sizeof(gif_info_t));    ginfo->gif_buffer_length=buffer_length;	ginfo->gif_buffer=buffer;    unpack_gif(ginfo);    if (pBitmap!=NULL) {        pBitmap->bmWidth=ginfo->gif_global.width;        pBitmap->bmHeight=ginfo->gif_global.height;        pBitmap->bmBits=malloc(                pBitmap->bmWidth*pBitmap->bmHeight*bpp);    }    pGifSurface=ginfo->gif_surface;    pBmpSurface=pBitmap->bmBits;    for(i=0;i<ginfo->gif_global.height;i++) {        for(j=0;j<ginfo->gif_global.width;j++) {            int c;            int r,g,b;            r=*pGifSurface++;            g=*pGifSurface++;            b=*pGifSurface++;                        c = RGB2Pixel (hdc, r, g, b);            switch (bpp) {                case 1:                    *pBmpSurface = c;                    pBmpSurface++;                    break;                case 2:                    *(ushort *) pBmpSurface = c;                    pBmpSurface += 2;                    break;                case 3:                    *(ushort *) pBmpSurface = c;                    *(pBmpSurface + 2) = c >> 16;                    pBmpSurface += 3;                    break;                case 4:                    *(uint *) pBmpSurface = c;                    pBmpSurface += 4;                    break;            }        }    }    free(ginfo);    //destroy_gif(ginfo);	return 0;}int GUIAPI CreateBitmapFromGIFFile (HDC hdc, PBITMAP pBitmap, const char* filename){    int buffer_length;    FILE* file;    char* buffer;    int retval;    if ((file=fopen(filename,"rb"))==NULL) {        return -1;    }    fseek(file,0,SEEK_END);    buffer_length = ftell(file)+1;    buffer=(char*)malloc(buffer_length);    fseek(file,0,SEEK_SET);    fread(buffer, sizeof(char), buffer_length, file);    fclose(file);    retval=CreateBitmapFromGIFMemory (hdc, pBitmap,buffer,buffer_length);    free(buffer);    return retval;}int GUIAPI CreateBitmapFromJPGMemory (HDC hdc, PBITMAP pBitmap, void* buffer, int buffer_length){    unsigned char* pBmpSurface;    unsigned char* pJPGSurface;    int i,j;    int bpp = GetGDCapability (hdc, GDCAP_BPP);    jpg_info_t *jinfo;     jinfo = (jpg_info_t*)calloc(1, sizeof(jpg_info_t));    jinfo->jpg_buffer_length=buffer_length;	jinfo->jpg_buffer=buffer;    unpack_jpg(jinfo);    if (pBitmap!=NULL) {        pBitmap->bmWidth=jinfo->width;        pBitmap->bmHeight=jinfo->height;        pBitmap->bmBits=            malloc(pBitmap->bmWidth*pBitmap->bmHeight*bpp);    }    pJPGSurface=jinfo->jpg_surface;    pBmpSurface=pBitmap->bmBits;    for(i=0;i<jinfo->height;i++) {        for(j=0;j<jinfo->width;j++) {            int c;            int r,g,b;            r=*pJPGSurface++;            g=*pJPGSurface++;            b=*pJPGSurface++;            c = RGB2Pixel (hdc, r, g, b);            switch (bpp) {                case 1:                    *pBmpSurface = c;                    pBmpSurface++;                    break;                case 2:                    *(ushort *) pBmpSurface = c;                    pBmpSurface += 2;                    break;                case 3:                    *(ushort *) pBmpSurface = c;                    *(pBmpSurface + 2) = c >> 16;                    pBmpSurface += 3;                    break;                case 4:                    *(uint *) pBmpSurface = c;                    pBmpSurface += 4;                    break;            }        }    }    free(jinfo);    //destroy_jpg(jinfo);	return 0;}int GUIAPI CreateBitmapFromJPGFile (HDC hdc, PBITMAP pBitmap, const char* filename){    int buffer_length;    FILE* file;    char* buffer;    int retval;    if ((file=fopen(filename,"rb"))==NULL) {        return -1;    }    fseek(file,0,SEEK_END);    buffer_length = ftell(file)+1;    buffer=(char*)malloc(buffer_length);    fseek(file,0,SEEK_SET);    fread(buffer, sizeof(char), buffer_length, file);    fclose(file);    retval = CreateBitmapFromJPGMemory (hdc, pBitmap,buffer,buffer_length);    free(buffer);    return retval;}