79e512ab0b
Intel OpenGL drivers have an issue where the results of a series of glBlitFramebuffer() can delay updating the display, when we use GDK_GL=always, which is manifested when attempting to enter text in text boxes. This attempts to work around this issue by requiring a glFlush() call and a retry to the same glBlitFramebuffer() calls to avoid delays in keystrokes when using GDK_GL=always and when not using libANGLE OpenGL/ES emulation, when an Intel OpenGL driver is being used. Special thanks to Lukas K. for the analysis and coming up with a workaround, which this patch builds upon. Fixes issue 3487
142 lines
4.2 KiB
C
142 lines
4.2 KiB
C
/*
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* gdkdisplay-win32.h
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*
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* Copyright 2014 Chun-wei Fan <fanc999@yahoo.com.tw>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gdkdisplayprivate.h"
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#ifdef GDK_WIN32_ENABLE_EGL
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# include <epoxy/egl.h>
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#endif
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#ifndef __GDK_DISPLAY__WIN32_H__
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#define __GDK_DISPLAY__WIN32_H__
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/* Define values used to set DPI-awareness */
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typedef enum _GdkWin32ProcessDpiAwareness {
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PROCESS_DPI_UNAWARE = 0,
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PROCESS_SYSTEM_DPI_AWARE = 1,
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PROCESS_PER_MONITOR_DPI_AWARE = 2
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} GdkWin32ProcessDpiAwareness;
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/* APIs from shcore.dll */
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typedef HRESULT (WINAPI *funcSetProcessDpiAwareness) (GdkWin32ProcessDpiAwareness value);
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typedef HRESULT (WINAPI *funcGetProcessDpiAwareness) (HANDLE handle,
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GdkWin32ProcessDpiAwareness *awareness);
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typedef HRESULT (WINAPI *funcGetDpiForMonitor) (HMONITOR monitor,
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GdkWin32MonitorDpiType dpi_type,
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UINT *dpi_x,
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UINT *dpi_y);
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typedef struct _GdkWin32ShcoreFuncs
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{
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HMODULE hshcore;
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funcSetProcessDpiAwareness setDpiAwareFunc;
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funcGetProcessDpiAwareness getDpiAwareFunc;
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funcGetDpiForMonitor getDpiForMonitorFunc;
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} GdkWin32ShcoreFuncs;
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/* DPI awareness APIs from user32.dll */
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typedef BOOL (WINAPI *funcSetProcessDPIAware) (void);
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typedef BOOL (WINAPI *funcIsProcessDPIAware) (void);
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typedef struct _GdkWin32User32DPIFuncs
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{
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funcSetProcessDPIAware setDpiAwareFunc;
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funcIsProcessDPIAware isDpiAwareFunc;
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} GdkWin32User32DPIFuncs;
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/* Detect running architecture */
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typedef BOOL (WINAPI *funcIsWow64Process2) (HANDLE, USHORT *, USHORT *);
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typedef struct _GdkWin32KernelCPUFuncs
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{
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funcIsWow64Process2 isWow64Process2;
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} GdkWin32KernelCPUFuncs;
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struct _GdkWin32Display
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{
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GdkDisplay display;
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GdkScreen *screen;
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Win32CursorTheme *cursor_theme;
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gchar *cursor_theme_name;
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int cursor_theme_size;
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GHashTable *cursor_cache;
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HWND hwnd;
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HWND clipboard_hwnd;
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/* WGL/OpenGL Items */
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guint have_wgl : 1;
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guint gl_version;
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HWND gl_hwnd;
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#ifdef GDK_WIN32_ENABLE_EGL
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/* EGL (Angle) Items */
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guint have_egl : 1;
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guint egl_version;
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EGLDisplay egl_disp;
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HDC hdc_egl_temp;
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#endif
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GPtrArray *monitors;
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guint hasWglARBCreateContext : 1;
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guint hasWglEXTSwapControl : 1;
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guint hasWglOMLSyncControl : 1;
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guint hasWglARBPixelFormat : 1;
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guint hasWglARBmultisample : 1;
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/* compensate around Intel OpenGL driver issues on blitting, see issue #3487 */
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guint needIntelGLWorkaround : 1;
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#ifdef GDK_WIN32_ENABLE_EGL
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guint hasEglKHRCreateContext : 1;
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guint hasEglSurfacelessContext : 1;
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EGLint egl_min_swap_interval;
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#endif
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/* HiDPI Items */
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guint have_at_least_win81 : 1;
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GdkWin32ProcessDpiAwareness dpi_aware_type;
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guint has_fixed_scale : 1;
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guint window_scale;
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GdkWin32ShcoreFuncs shcore_funcs;
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GdkWin32User32DPIFuncs user32_dpi_funcs;
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/* Running CPU items */
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guint running_on_arm64 : 1;
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GdkWin32KernelCPUFuncs cpu_funcs;
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};
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struct _GdkWin32DisplayClass
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{
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GdkDisplayClass display_class;
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};
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gboolean _gdk_win32_display_init_monitors (GdkWin32Display *display);
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GPtrArray *_gdk_win32_display_get_monitor_list (GdkWin32Display *display);
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guint _gdk_win32_display_get_monitor_scale_factor (GdkWin32Display *win32_display,
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HMONITOR hmonitor,
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HWND hwnd,
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gint *dpi);
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#endif /* __GDK_DISPLAY__WIN32_H__ */
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