HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
{
JpegDecoder *This;
HRESULT ret;
TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
if (!libjpeg_handle && !load_libjpeg())
{
ERR("Failed reading JPEG because unable to find %s\n", SONAME_LIBJPEG);
return E_FAIL;
}
*ppv = NULL;
if (pUnkOuter) return CLASS_E_NOAGGREGATION;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(JpegDecoder));
if (!This) return E_OUTOFMEMORY;
This->lpVtbl = &JpegDecoder_Vtbl;
This->lpFrameVtbl = &JpegDecoder_Frame_Vtbl;
This->ref = 1;
This->initialized = FALSE;
This->cinfo_initialized = FALSE;
This->stream = NULL;
This->image_data = NULL;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": JpegDecoder.lock");
ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
IUnknown_Release((IUnknown*)This);
return ret;
}
HRESULT JpegDecoder_CreateInstance(REFIID iid, void** ppv)
{
JpegDecoder *This;
HRESULT ret;
TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
if (!libjpeg_handle && !load_libjpeg())
{
ERR("Failed reading JPEG because unable to find %s\n", SONAME_LIBJPEG);
return E_FAIL;
}
*ppv = NULL;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(JpegDecoder));
if (!This) return E_OUTOFMEMORY;
This->IWICBitmapDecoder_iface.lpVtbl = &JpegDecoder_Vtbl;
This->IWICBitmapFrameDecode_iface.lpVtbl = &JpegDecoder_Frame_Vtbl;
This->IWICMetadataBlockReader_iface.lpVtbl = &JpegDecoder_Block_Vtbl;
This->ref = 1;
This->initialized = FALSE;
This->cinfo_initialized = FALSE;
This->stream = NULL;
This->image_data = NULL;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": JpegDecoder.lock");
ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
return ret;
}
HRESULT JpegEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
{
JpegEncoder *This;
HRESULT ret;
TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
*ppv = NULL;
if (pUnkOuter) return CLASS_E_NOAGGREGATION;
if (!libjpeg_handle && !load_libjpeg())
{
ERR("Failed writing JPEG because unable to find %s\n",SONAME_LIBJPEG);
return E_FAIL;
}
This = HeapAlloc(GetProcessHeap(), 0, sizeof(JpegEncoder));
if (!This) return E_OUTOFMEMORY;
This->IWICBitmapEncoder_iface.lpVtbl = &JpegEncoder_Vtbl;
This->IWICBitmapFrameEncode_iface.lpVtbl = &JpegEncoder_FrameVtbl;
This->ref = 1;
This->initialized = 0;
This->frame_count = 0;
This->frame_initialized = 0;
This->started_compress = 0;
This->lines_written = 0;
This->frame_committed = 0;
This->committed = 0;
This->width = This->height = 0;
This->xres = This->yres = 0.0;
This->format = NULL;
This->stream = NULL;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": JpegEncoder.lock");
ret = IWICBitmapEncoder_QueryInterface(&This->IWICBitmapEncoder_iface, iid, ppv);
IWICBitmapEncoder_Release(&This->IWICBitmapEncoder_iface);
return ret;
}
TW_UINT16
_get_gphoto2_file_as_DIB(
const char *folder, const char *filename, CameraFileType type,
HWND hwnd, HBITMAP *hDIB
) {
const unsigned char *filedata;
unsigned long filesize;
int ret;
CameraFile *file;
struct jpeg_source_mgr xjsm;
struct jpeg_decompress_struct jd;
struct jpeg_error_mgr jerr;
HDC dc;
BITMAPINFO bmpInfo;
LPBYTE bits;
JSAMPROW samprow, oldsamprow;
if(!libjpeg_handle) {
if(!load_libjpeg()) {
FIXME("Failed reading JPEG because unable to find %s\n", SONAME_LIBJPEG);
filedata = NULL;
return TWRC_FAILURE;
}
}
gp_file_new (&file);
ret = gp_camera_file_get(activeDS.camera, folder, filename, type, file, activeDS.context);
if (ret < GP_OK) {
FIXME("Failed to get file?\n");
gp_file_unref (file);
return TWRC_FAILURE;
}
ret = gp_file_get_data_and_size (file, (const char**)&filedata, &filesize);
if (ret < GP_OK) {
FIXME("Failed to get file data?\n");
return TWRC_FAILURE;
}
/* FIXME: Actually we might get other types than JPEG ... But only handle JPEG for now */
if (filedata[0] != 0xff) {
ERR("File %s/%s might not be JPEG, cannot decode!\n", folder, filename);
}
/* This is basically so we can use in-memory data for jpeg decompression.
* We need to have all the functions.
*/
xjsm.next_input_byte = filedata;
xjsm.bytes_in_buffer = filesize;
xjsm.init_source = _jpeg_init_source;
xjsm.fill_input_buffer = _jpeg_fill_input_buffer;
xjsm.skip_input_data = _jpeg_skip_input_data;
xjsm.resync_to_restart = _jpeg_resync_to_restart;
xjsm.term_source = _jpeg_term_source;
jd.err = pjpeg_std_error(&jerr);
/* jpeg_create_decompress is a macro that expands to jpeg_CreateDecompress - see jpeglib.h
* jpeg_create_decompress(&jd); */
pjpeg_CreateDecompress(&jd, JPEG_LIB_VERSION, (size_t) sizeof(struct jpeg_decompress_struct));
jd.src = &xjsm;
ret=pjpeg_read_header(&jd,TRUE);
jd.out_color_space = JCS_RGB;
pjpeg_start_decompress(&jd);
if (ret != JPEG_HEADER_OK) {
ERR("Jpeg image in stream has bad format, read header returned %d.\n",ret);
gp_file_unref (file);
return TWRC_FAILURE;
}
ZeroMemory (&bmpInfo, sizeof (BITMAPINFO));
bmpInfo.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
bmpInfo.bmiHeader.biWidth = jd.output_width;
bmpInfo.bmiHeader.biHeight = -jd.output_height;
bmpInfo.bmiHeader.biPlanes = 1;
bmpInfo.bmiHeader.biBitCount = jd.output_components*8;
bmpInfo.bmiHeader.biCompression = BI_RGB;
bmpInfo.bmiHeader.biSizeImage = 0;
bmpInfo.bmiHeader.biXPelsPerMeter = 0;
bmpInfo.bmiHeader.biYPelsPerMeter = 0;
bmpInfo.bmiHeader.biClrUsed = 0;
bmpInfo.bmiHeader.biClrImportant = 0;
*hDIB = CreateDIBSection ((dc = GetDC(hwnd)), &bmpInfo, DIB_RGB_COLORS, (LPVOID)&bits, 0, 0);
if (!*hDIB) {
FIXME("Failed creating DIB.\n");
gp_file_unref (file);
return TWRC_FAILURE;
}
samprow = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,jd.output_width*jd.output_components);
oldsamprow = samprow;
while ( jd.output_scanline<jd.output_height ) {
int i, x = pjpeg_read_scanlines(&jd,&samprow,1);
if (x != 1) {
FIXME("failed to read current scanline?\n");
break;
}
/* We have to convert from RGB to BGR, see MSDN/ BITMAPINFOHEADER */
for(i=0;i<jd.output_width;i++,samprow+=jd.output_components) {
*(bits++) = *(samprow+2);
*(bits++) = *(samprow+1);
*(bits++) = *(samprow);
}
bits = (LPBYTE)(((UINT_PTR)bits + 3) & ~3);
samprow = oldsamprow;
}
if (hwnd) ReleaseDC (hwnd, dc);
HeapFree (GetProcessHeap(), 0, samprow);
gp_file_unref (file);
return TWRC_SUCCESS;
}
static TW_UINT16 _get_image_and_startup_jpeg(void) {
const char *folder = NULL, *filename = NULL;
struct gphoto2_file *file;
const unsigned char *filedata;
unsigned long filesize;
int ret;
if (activeDS.file) /* Already loaded. */
return TWRC_SUCCESS;
if(!libjpeg_handle) {
if(!load_libjpeg()) {
FIXME("Failed reading JPEG because unable to find %s\n", SONAME_LIBJPEG);
filedata = NULL;
return TWRC_FAILURE;
}
}
LIST_FOR_EACH_ENTRY( file, &activeDS.files, struct gphoto2_file, entry ) {
if (strstr(file->filename,".JPG") || strstr(file->filename,".jpg")) {
filename = file->filename;
folder = file->folder;
TRACE("downloading %s/%s\n", folder, filename);
if (file->download) {
file->download = FALSE; /* mark as done */
break;
}
}
}
gp_file_new (&activeDS.file);
ret = gp_camera_file_get(activeDS.camera, folder, filename, GP_FILE_TYPE_NORMAL,
activeDS.file, activeDS.context);
if (ret < GP_OK) {
FIXME("Failed to get file?\n");
activeDS.twCC = TWCC_SEQERROR;
return TWRC_FAILURE;
}
ret = gp_file_get_data_and_size (activeDS.file, (const char**)&filedata, &filesize);
if (ret < GP_OK) {
FIXME("Failed to get file data?\n");
activeDS.twCC = TWCC_SEQERROR;
return TWRC_FAILURE;
}
/* This is basically so we can use in-memory data for jpeg decompression.
* We need to have all the functions.
*/
activeDS.xjsm.next_input_byte = filedata;
activeDS.xjsm.bytes_in_buffer = filesize;
activeDS.xjsm.init_source = _jpeg_init_source;
activeDS.xjsm.fill_input_buffer = _jpeg_fill_input_buffer;
activeDS.xjsm.skip_input_data = _jpeg_skip_input_data;
activeDS.xjsm.resync_to_restart = _jpeg_resync_to_restart;
activeDS.xjsm.term_source = _jpeg_term_source;
activeDS.jd.err = pjpeg_std_error(&activeDS.jerr);
/* jpeg_create_decompress is a macro that expands to jpeg_CreateDecompress - see jpeglib.h
* jpeg_create_decompress(&jd); */
pjpeg_CreateDecompress(&activeDS.jd, JPEG_LIB_VERSION, (size_t) sizeof(struct jpeg_decompress_struct));
activeDS.jd.src = &activeDS.xjsm;
ret=pjpeg_read_header(&activeDS.jd,TRUE);
activeDS.jd.out_color_space = JCS_RGB;
pjpeg_start_decompress(&activeDS.jd);
if (ret != JPEG_HEADER_OK) {
ERR("Jpeg image in stream has bad format, read header returned %d.\n",ret);
gp_file_unref (activeDS.file);
activeDS.file = NULL;
return TWRC_FAILURE;
}
return TWRC_SUCCESS;
}
