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tune get_effective_dc and release_effective_dc

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This commit is contained in:
Vincent Wei
2020-03-04 15:27:16 +08:00
parent 38e189ad17
commit 88603deb44
1 changed files with 28 additions and 16 deletions
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src/include/dc.h
+28 -16
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@@ -240,8 +240,8 @@ struct tagDC
DC_STEP_X step_x;
/* === context information. ============================================= */
/* DK[01/22/10]:This segment is binary compatible with _COMP_CTXT struct */
/* VW[01/18/18]:Adjust the fields sequence for 64-bit to ensure 8-byte alignment */
// DK[01/22/10]:This segment is binary compatible with _COMP_CTXT struct
// VW[01/18/18]:Adjust the fields order for 64bit to ensure 8-byte alignment
gal_uint8* cur_dst;
void* user_comp_ctxt;
gal_pixel skip_pixel;
@@ -663,51 +663,63 @@ leave_drawing:
static inline HDC get_effective_dc (PMAINWIN pWin, BOOL client)
{
#if 0 /* deprecated code */
if (!(pWin->dwExStyle & WS_EX_CTRLASMAINWIN)
&& (pWin->pMainWin->secondaryDC)) {
if (client && (pWin->dwExStyle & WS_EX_USEPRIVATECDC)) {
if (client && pWin->privCDC) {
return pWin->privCDC;
}
else
return GetSecondarySubDC (pWin->pMainWin->secondaryDC,
(HWND)pWin, client);
return GetDCInSecondarySurface ((HWND)pWin, client);
}
else {
if (client && (pWin->dwExStyle & WS_EX_USEPRIVATECDC)) {
if (client && pWin->privCDC) {
return pWin->privCDC;
}
if (client) {
return GetClientDC ((HWND)pWin);
}
else {
return GetDC ((HWND)pWin);
return GetDCEx ((HWND)pWin, client);
}
}
#else /* deprecated code */
if (client && pWin->privCDC)
return pWin->privCDC;
else
return GetDCInSecondarySurface ((HWND)pWin, client);
#endif
}
static inline void release_effective_dc (PMAINWIN pWin, HDC hdc)
{
#if 0 /* deprecated code */
if (pWin->pMainWin->secondaryDC) {
if (pWin->privCDC != hdc)
ReleaseSecondarySubDC (hdc);
ReleaseDC (hdc);
}
else {
// Since 5.0.0, we always call ReleaseDC even if it is private CDC.
// if (pWin->privCDC != hdc)
ReleaseDC (hdc);
if (pWin->privCDC != hdc)
ReleaseDC (hdc);
}
#else /* deprecated code */
// Since 5.0.0, we always call ReleaseDC even if it is private CDC.
ReleaseDC (hdc);
#endif
}
void __mg_update_secondary_dc (PMAINWIN pWin, HDC secondary_dc,
HDC real_dc, const RECT* rc, DWORD flags);
/* Since 5.0.0.
* helpers for getting and reseting common RGBA8888 DC for internal use.
*/
helpers for getting and reseting common RGBA8888 DC for internal use. */
HDC __mg_get_common_rgba8888_dc (void);
BOOL __mg_reset_common_rgba8888_dc (int width, int height, int pitch,
void* pixels);
/* Since 5.0.0.
helpers to update the private client DC of window and it's descendants */
void __mg_update_dc_on_surface_changed (PMAINWIN pWin, GAL_Surface* surf);
void __mg_update_dc_on_secondary_dc_changed (PMAINWIN pMainWin);
void __mg_delete_secondary_dc (PMAINWIN pMainWin);
#ifdef __cplusplus
}
#endif /* __cplusplus */