static int py_JpegObject_init(py_JpegObject *self, PyObject *args, PyObject *kwds) {
if (args == NULL) {
return -1;
}
const char *filename;
if (!PyArg_ParseTuple(args, "s", &filename)) {
return -1;
}
FILE *file = fopen(filename, "rb");
if (file == NULL) {
PyErr_SetString(PyExc_IOError, "no such file!");
return -1;
}
int err = FALSE;
if (0 != readjpeg(file, &self->stuff)) {
PyErr_SetString(PyExc_IOError, "file loading failed!");
err = TRUE;
} else {
self->inited = TRUE;
}
if (0 != fclose(file)) {
if (PyErr_Occurred() == NULL) {
PyErr_SetFromErrno(PyExc_IOError);
}
err = TRUE;
}
if (err) {
if (self->inited) {
closejpeg(&self->stuff);
}
return -1;
}
return 0;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM w, LPARAM l)
{
HDC hdc;// = GetDC(hwnd);
PAINTSTRUCT ps;
RECT rect;
BITMAPINFO bmi;
ZeroMemory(&bmi, sizeof(BITMAPINFO));
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 24;
bmi.bmiHeader.biCompression = BI_RGB;
switch (msg) {
case WM_DESTROY:
PostQuitMessage(1);
break;
case WM_PAINT: {
hdc=BeginPaint(hwnd,&ps);
//GetWindowRect(hwnd,&rect);
//RedrawWindow(hwnd,&rect,0,0);
if(num==vs.length-1)exit(0);
readjpeg(vs.strs[num++], &img);
bmi.bmiHeader.biWidth = img.Width;
bmi.bmiHeader.biHeight = img.Height;
//SetDIBitsToDevice(hdc, 0, 0, img.Width, img.Height,0, 0, 0, img.Height, img.Data, &bmi, DIB_RGB_COLORS);
SetStretchBltMode(hdc,STRETCH_HALFTONE);//注意第二个参数会影响显示质量
StretchDIBits(hdc, 0, 0, img.Width/2, img.Height/2,0, 0,img.Width,img.Height, img.Data, &bmi, DIB_RGB_COLORS,SRCCOPY);
free(img.Data);
EndPaint(hwnd,&ps);
}
break;
default:
return DefWindowProc(hwnd, msg, w, l);
}
return 0;
}
unsigned char *readpicture(char *filename, int *width, int *height, int printflag){
char *ext;
unsigned char *returncode;
char *filebuffer=NULL;
int allocated;
STRUCTSTAT statbuffer;
if(filename==NULL)return NULL;
if(STAT(filename,&statbuffer)==0){
filebuffer=filename;
allocated=0;
}
else{
size_t lenbuffer;
if(texturedir==NULL){
if(printflag==1){
fprintf(stderr,"*** Error: texture file: %s unavailable\n",filename);
}
return NULL;
}
else{
FILE *stream;
lenbuffer=strlen(filename)+strlen(texturedir)+1;
NewMemory((void **)&filebuffer,(unsigned int)(lenbuffer+1));
allocated=1;
strcpy(filebuffer,texturedir);
strcat(filebuffer,dirseparator);
strcat(filebuffer,filename);
stream=fopen(filebuffer,"rb");
if(stream==NULL){
if(printflag==1){
fprintf(stderr,"*** Error: texture file: %s unavailable\n",filebuffer);
}
FREEMEMORY(filebuffer);
return NULL;
}
else{
fclose(stream);
}
}
}
if(printflag==1)PRINTF("Loading texture:%s ",filebuffer);
ext = filebuffer + strlen(filebuffer) - 4;
if(strncmp(ext,".jpg",4)==0||strncmp(ext,".JPG",4)==0){
returncode = readjpeg(filebuffer,width,height,pixel_skip);
}
else if(strncmp(ext,".png",4)==0||strncmp(ext,".PNG",4)==0){
returncode = readpng(filebuffer,width,height);
}
else{
if(allocated==1){
FREEMEMORY(filebuffer);
}
return NULL;
}
if(allocated==1){
FREEMEMORY(filebuffer);
}
if(printflag==1){
if(returncode!=NULL){
PRINTF(" - completed\n");
}
else{
PRINTF(" - failed\n");
fprintf(stderr,"*** Error: attempt to input %s failed\n",filename);
}
}
return returncode;
}
int readimage(rawimage * img) {
int rc;
int xres, yres;
unsigned char * imgdata;
char * name = img->name;
if (strstr(name, ".ppm")) {
rc = readppm(name, &xres, &yres, &imgdata);
}
else if (strstr(name, ".tga")) {
rc = readtga(name, &xres, &yres, &imgdata);
}
else if (strstr(name, ".jpg")) {
rc = readjpeg(name, &xres, &yres, &imgdata);
}
else if (strstr(name, ".gif")) {
rc = IMAGEUNSUP;
}
else if (strstr(name, ".png")) {
rc = IMAGEUNSUP;
}
else if (strstr(name, ".tiff")) {
rc = IMAGEUNSUP;
}
else if (strstr(name, ".rgb")) {
rc = IMAGEUNSUP;
}
else if (strstr(name, ".xpm")) {
rc = IMAGEUNSUP;
}
else {
rc = readppm(name, &xres, &yres, &imgdata);
}
switch (rc) {
case IMAGEREADERR:
fprintf(stderr, "Short read encountered while loading image %s\n", name);
rc = IMAGENOERR; /* remap to non-fatal error */
break;
case IMAGEUNSUP:
fprintf(stderr, "Cannot read unsupported image format for image %s\n", name);
break;
}
/* If the image load failed, create a tiny white colored image to fake it */
/* this allows a scene to render even when a file can't be loaded */
if (rc != IMAGENOERR) {
rc = fakeimage(name, &xres, &yres, &imgdata);
}
/* If we succeeded in loading the image, return it. */
if (rc == IMAGENOERR) {
img->xres = xres;
img->yres = yres;
img->bpp = 3;
img->data = imgdata;
}
return rc;
}
