ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

gdi32: Implement EMFDRV_AlphaBlend(). 

Fix a bug that Tally produces a blank print preview when images have to be scaled.

Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zhiyi Zhang 2021-04-20 09:09:19 +01:00 committed by Alexandre Julliard
parent 0893240da5
commit 8ae18d055a
4 changed files with 92 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
dlls/gdi32/enhmfdrv/bitblt.c
View File

@ -27,6 +27,94 @@
#include "enhmetafiledrv.h"
#include "wine/debug.h"
BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst,
PHYSDEV dev_src, struct bitblt_coords *src, BLENDFUNCTION func )
{
unsigned char src_buffer[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
BITMAPINFO *src_info = (BITMAPINFO *)src_buffer;
UINT bits_size, bmi_size, emr_size, size, bpp;
struct gdi_image_bits bits;
EMRALPHABLEND *emr;
BITMAPINFO *bmi;
DC *dc_src;
DWORD err;
BOOL ret = FALSE;
dc_src = get_physdev_dc(dev_src);
dev_src = GET_DC_PHYSDEV(dc_src, pGetImage);
err = dev_src->funcs->pGetImage(dev_src, src_info, &bits, src);
if (err)
{
SetLastError(err);
return FALSE;
}
bpp = src_info->bmiHeader.biBitCount;
if (bpp <= 8)
bmi_size = sizeof(BITMAPINFOHEADER) + (1 << bpp) * sizeof(RGBQUAD);
else if (bpp == 16 || bpp == 32)
bmi_size = sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD);
else
bmi_size = sizeof(BITMAPINFOHEADER);
emr_size = sizeof(EMRALPHABLEND);
bits_size = src_info->bmiHeader.biSizeImage;
size = emr_size + bmi_size + bits_size;
emr = HeapAlloc(GetProcessHeap(), 0, size);
if (!emr) goto err;
emr->emr.iType = EMR_ALPHABLEND;
emr->emr.nSize = size;
emr->rclBounds.left = dst->log_x;
emr->rclBounds.top = dst->log_y;
emr->rclBounds.right = dst->log_x + dst->log_width - 1;
emr->rclBounds.bottom = dst->log_y + dst->log_height - 1;
emr->xDest = dst->log_x;
emr->yDest = dst->log_y;
emr->cxDest = dst->log_width;
emr->cyDest = dst->log_height;
emr->xSrc = src->log_x;
emr->ySrc = src->log_y;
emr->cxSrc = src->log_width;
emr->cySrc = src->log_height;
emr->dwRop = *(DWORD *)&func;
GetTransform(dev_src->hdc, 0x204, &emr->xformSrc);
emr->crBkColorSrc = GetBkColor(dev_src->hdc);
emr->iUsageSrc = DIB_RGB_COLORS;
emr->offBmiSrc = emr_size;
emr->cbBmiSrc = bmi_size;
emr->offBitsSrc = emr_size + bmi_size;
emr->cbBitsSrc = bits_size;
bmi = (BITMAPINFO *)((BYTE *)emr + emr->offBmiSrc);
memcpy(bmi, src_info, bmi_size);
memcpy((BYTE *)emr + emr->offBitsSrc, bits.ptr, bits_size);
bmi->bmiHeader.biClrUsed = 0;
if (bmi->bmiHeader.biCompression == BI_RGB && bmi->bmiHeader.biBitCount == 16)
{
bmi->bmiHeader.biCompression = BI_BITFIELDS;
((DWORD *)bmi->bmiColors)[0] = 0xf800;
((DWORD *)bmi->bmiColors)[1] = 0x07e0;
((DWORD *)bmi->bmiColors)[2] = 0x001f;
}
else if (bmi->bmiHeader.biCompression == BI_RGB && bmi->bmiHeader.biBitCount == 32)
{
bmi->bmiHeader.biCompression = BI_BITFIELDS;
((DWORD *)bmi->bmiColors)[0] = 0xff0000;
((DWORD *)bmi->bmiColors)[1] = 0x00ff00;
((DWORD *)bmi->bmiColors)[2] = 0x0000ff;
}
ret = EMFDRV_WriteRecord(dev_dst, (EMR *)emr);
if (ret) EMFDRV_UpdateBBox(dev_dst, &emr->rclBounds);
err:
HeapFree(GetProcessHeap(), 0, emr);
if (bits.free) bits.free(&bits);
return ret;
}
BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
{
EMRBITBLT emr;

2
dlls/gdi32/enhmfdrv/enhmetafiledrv.h
View File

@ -58,6 +58,8 @@ extern DWORD EMFDRV_CreateBrushIndirect( PHYSDEV dev, HBRUSH hBrush ) DECLSPEC_H
/* Metafile driver functions */
extern BOOL CDECL EMFDRV_AbortPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
extern BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst,
PHYSDEV dev_src, struct bitblt_coords *src, BLENDFUNCTION func ) DECLSPEC_HIDDEN;
extern BOOL CDECL EMFDRV_AngleArc( PHYSDEV dev, INT x, INT y, DWORD radius, FLOAT start, FLOAT sweep ) DECLSPEC_HIDDEN;
extern BOOL CDECL EMFDRV_Arc( PHYSDEV dev, INT left, INT top, INT right,
INT bottom, INT xstart, INT ystart, INT xend, INT yend ) DECLSPEC_HIDDEN;

2
dlls/gdi32/enhmfdrv/init.c
View File

@ -38,7 +38,7 @@ static const struct gdi_dc_funcs emfdrv_driver =
{
NULL, /* pAbortDoc */
EMFDRV_AbortPath, /* pAbortPath */
NULL, /* pAlphaBlend */
EMFDRV_AlphaBlend, /* pAlphaBlend */
EMFDRV_AngleArc, /* pAngleArc */
EMFDRV_Arc, /* pArc */
EMFDRV_ArcTo, /* pArcTo */

4
dlls/gdi32/tests/metafile.c
View File

@ -5001,15 +5001,13 @@ static void test_emf_AlphaBlend(void)
ret = BitBlt(hdc_bitmap, 0, 0, bitmap_width, bitmap_height, 0, 0, 0, BLACKNESS);
ok(ret, "Test %d: BitBlt failed, error %d\n", test_idx, GetLastError());
ret = GdiAlphaBlend(hdc_emf, 0, 0, bitmap_width, bitmap_height, hdc_bitmap, 0, 0, 400, 400, blend);
todo_wine
ok(ret, "Test %d: GdiAlphaBlend failed, error %d\n", test_idx, GetLastError());
hemf = CloseEnhMetaFile(hdc_emf);
ok(!!hemf, "Test %d: CloseEnhMetaFile failed, %d\n", test_idx, GetLastError());
sprintf(comment, "test_emf_AlphaBlend() test %d", test_idx);
if (ret)
ret = compare_emf_bits(hemf, tests[test_idx].bits, tests[test_idx].bits_count, comment, FALSE);
ret = compare_emf_bits(hemf, tests[test_idx].bits, tests[test_idx].bits_count, comment, FALSE);
if (ret)
{
dump_emf_bits(hemf, comment);