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sane.ds: Implement NATIVEXFER/MSG_GET for RGB scans.

This commit is contained in:
Jeremy White 2009-02-13 13:14:58 -06:00 committed by Alexandre Julliard
parent 9bb24b8f7e
commit aaf83dc1b2
1 changed files with 95 additions and 47 deletions
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142
dlls/sane.ds/ds_image.c
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@ -327,6 +327,30 @@ TW_UINT16 SANE_ImageMemXferGet (pTW_IDENTITY pOrigin,
#endif
}
#ifdef SONAME_LIBSANE
static SANE_Status read_one_line(SANE_Handle h, BYTE *line, int len)
{
int read_len;
SANE_Status status;
for (;;)
{
read_len = 0;
status = psane_read (activeDS.deviceHandle, line, len, &read_len);
if (status != SANE_STATUS_GOOD)
break;
if (read_len == len)
break;
line += read_len;
len -= read_len;
}
return status;
}
#endif
/* DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET */
TW_UINT16 SANE_ImageNativeXferGet (pTW_IDENTITY pOrigin,
TW_MEMREF pData)
@ -337,12 +361,12 @@ TW_UINT16 SANE_ImageNativeXferGet (pTW_IDENTITY pOrigin,
TW_UINT16 twRC = TWRC_SUCCESS;
pTW_UINT32 pHandle = (pTW_UINT32) pData;
SANE_Status status;
SANE_Byte buffer[32*1024];
int buff_len;
HBITMAP hDIB;
BITMAPINFO bmpInfo;
VOID *pBits;
HDC dc;
HANDLE hDIB;
BITMAPINFOHEADER *header = NULL;
int dib_bytes;
int dib_bytes_per_line;
BYTE *line;
int i;
TRACE("DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET\n");
@ -373,55 +397,79 @@ TW_UINT16 SANE_ImageNativeXferGet (pTW_IDENTITY pOrigin,
return TWRC_FAILURE;
}
TRACE("Acquiring image %dx%dx%d bits (format=%d last=%d) from sane...\n"
, activeDS.sane_param.pixels_per_line, activeDS.sane_param.lines,
activeDS.sane_param.depth, activeDS.sane_param.format,
activeDS.sane_param.last_frame);
ZeroMemory (&bmpInfo, sizeof (BITMAPINFO));
bmpInfo.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
bmpInfo.bmiHeader.biWidth = activeDS.sane_param.pixels_per_line;
bmpInfo.bmiHeader.biHeight = activeDS.sane_param.lines;
bmpInfo.bmiHeader.biPlanes = 1;
bmpInfo.bmiHeader.biBitCount = activeDS.sane_param.depth;
bmpInfo.bmiHeader.biCompression = BI_RGB;
bmpInfo.bmiHeader.biSizeImage = 0;
bmpInfo.bmiHeader.biXPelsPerMeter = 0;
bmpInfo.bmiHeader.biYPelsPerMeter = 0;
bmpInfo.bmiHeader.biClrUsed = 1;
bmpInfo.bmiHeader.biClrImportant = 0;
bmpInfo.bmiColors[0].rgbBlue = 128;
bmpInfo.bmiColors[0].rgbGreen = 128;
bmpInfo.bmiColors[0].rgbRed = 128;
hDIB = CreateDIBSection ((dc = GetDC(activeDS.hwndOwner)), &bmpInfo,
DIB_RGB_COLORS, &pBits, 0, 0);
if (!hDIB)
if (activeDS.sane_param.format != SANE_FRAME_RGB)
{
FIXME("For NATIVE, we support only RGB, not %d\n", activeDS.sane_param.format);
psane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_LOWMEMORY;
activeDS.twCC = TWCC_OPERATIONERROR;
return TWRC_FAILURE;
}
do
{
status = psane_read (activeDS.deviceHandle, buffer,
sizeof (buffer), &buff_len);
if (status == SANE_STATUS_GOOD)
{
/* FIXME: put code for converting the image data into DIB here */
TRACE("Acquiring image %dx%dx%d bits (format=%d last=%d bpl=%d) from sane...\n"
, activeDS.sane_param.pixels_per_line, activeDS.sane_param.lines,
activeDS.sane_param.depth, activeDS.sane_param.format,
activeDS.sane_param.last_frame, activeDS.sane_param.bytes_per_line);
}
else if (status != SANE_STATUS_EOF)
{
WARN("psane_read: %s\n", psane_strstatus (status));
psane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_OPERATIONERROR;
return TWRC_FAILURE;
}
} while (status == SANE_STATUS_GOOD);
dib_bytes_per_line = ((activeDS.sane_param.bytes_per_line + 3) / 4) * 4;
dib_bytes = activeDS.sane_param.lines * dib_bytes_per_line;
hDIB = GlobalAlloc(GMEM_ZEROINIT, dib_bytes + sizeof(*header));
if (hDIB)
header = GlobalLock(hDIB);
if (!header)
{
psane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_LOWMEMORY;
if (hDIB)
GlobalFree(hDIB);
return TWRC_FAILURE;
}
header->biSize = sizeof (*header);
header->biWidth = activeDS.sane_param.pixels_per_line;
header->biHeight = activeDS.sane_param.lines;
header->biPlanes = 1;
header->biBitCount = activeDS.sane_param.depth * 3;
header->biCompression = BI_RGB;
header->biSizeImage = dib_bytes;
header->biXPelsPerMeter = 0;
header->biYPelsPerMeter = 0;
header->biClrUsed = 0;
header->biClrImportant = 0;
/* Sane returns data in top down order. Acrobat does best with
a bottom up DIB being returned. */
line = (BYTE *)(header + 1) +
(activeDS.sane_param.lines - 1) * dib_bytes_per_line;
for (i = activeDS.sane_param.lines - 1; i >= 0; i--)
{
activeDS.progressWnd = ScanningDialogBox(activeDS.progressWnd,
((activeDS.sane_param.lines - 1 - i) * 100)
/
(activeDS.sane_param.lines - 1));
status = read_one_line(activeDS.deviceHandle, line,
activeDS.sane_param.bytes_per_line);
if (status != SANE_STATUS_GOOD)
break;
line -= dib_bytes_per_line;
}
activeDS.progressWnd = ScanningDialogBox(activeDS.progressWnd, -1);
GlobalUnlock(hDIB);
if (status != SANE_STATUS_GOOD && status != SANE_STATUS_EOF)
{
WARN("psane_read: %s, reading line %d\n", psane_strstatus(status), i);
psane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_OPERATIONERROR;
GlobalFree(hDIB);
return TWRC_FAILURE;
}
psane_cancel (activeDS.deviceHandle);
ReleaseDC (activeDS.hwndOwner, dc);
*pHandle = (TW_UINT32)hDIB;
twRC = TWRC_XFERDONE;
activeDS.twCC = TWCC_SUCCESS;