Jiga228/glfw
0
0
Fork 0
mirror of https://github.com/glfw/glfw.git synced 2026-09-21 00:30:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

Win32: Disable fb transparency when it is broken

Browse Source 
On Windows 7, when GLFW framebuffer transparency and the DWM are enabled
but DWM transparency is disabled (i.e. when the Transparency setting is
disabled under Personalization > Color), the contents of the framebuffer
is combined with the last frame using additive blending instead of
replacing the previous contents.

This commit limits GLFW framebuffer transparency on Windows 7 to when
DWM transparency is enabled, removing the previous workaround of setting
a layered window color key that led to rendering artifacts.

Fixes #1512.
This commit is contained in:
Camilla Löwy
2020-07-28 00:12:45 +02:00
parent a2674a9034
commit 05dd2fa298
6 changed files with 52 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/win32_platform.h
+6
View File
@@ -77,6 +77,9 @@
#ifndef WM_DWMCOMPOSITIONCHANGED
#define WM_DWMCOMPOSITIONCHANGED 0x031E
#endif
#ifndef WM_DWMCOLORIZATIONCOLORCHANGED
#define WM_DWMCOLORIZATIONCOLORCHANGED 0x0320
#endif
#ifndef WM_COPYGLOBALDATA
#define WM_COPYGLOBALDATA 0x0049
#endif
@@ -244,9 +247,11 @@ typedef BOOL (WINAPI * PFN_AdjustWindowRectExForDpi)(LPRECT,DWORD,BOOL,DWORD,UIN
typedef HRESULT (WINAPI * PFN_DwmIsCompositionEnabled)(BOOL*);
typedef HRESULT (WINAPI * PFN_DwmFlush)(VOID);
typedef HRESULT(WINAPI * PFN_DwmEnableBlurBehindWindow)(HWND,const DWM_BLURBEHIND*);
typedef HRESULT (WINAPI * PFN_DwmGetColorizationColor)(DWORD*,BOOL*);
#define DwmIsCompositionEnabled _glfw.win32.dwmapi.IsCompositionEnabled
#define DwmFlush _glfw.win32.dwmapi.Flush
#define DwmEnableBlurBehindWindow _glfw.win32.dwmapi.EnableBlurBehindWindow
#define DwmGetColorizationColor _glfw.win32.dwmapi.GetColorizationColor
// shcore.dll function pointer typedefs
typedef HRESULT (WINAPI * PFN_SetProcessDpiAwareness)(PROCESS_DPI_AWARENESS);
@@ -368,6 +373,7 @@ typedef struct _GLFWlibraryWin32
PFN_DwmIsCompositionEnabled IsCompositionEnabled;
PFN_DwmFlush Flush;
PFN_DwmEnableBlurBehindWindow EnableBlurBehindWindow;
PFN_DwmGetColorizationColor GetColorizationColor;
} dwmapi;
struct {