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257fd990d1
This is for adding a EGL-based renderer which is done via the ANGLE project, which translate EGL calls to Direct3D 9/11. This is done as a possible solution to issue #105, especially for cases where the needed full GL extensions to map OpenGL to Direct3D is unavailable or unreliable, or when the OpenGL implementation from the graphics drivers are problematic. To enable this, do the following: -Build ANGLE and ensure the ANGLE libEGL.dll and libGLESv2.dll are available. A sufficiently-recent ANGLE is needed for things to work correctly--note that the copy of ANGLE that is included in qtbase-5.10.1 is sufficient. ANGLE is licensed under a BSD 3-clause license. -Build libepoxy on Windows with EGL support enabled. -Currently, prior to running GTK+ programs, the GDK_DEBUG envvar needs to be set with gl-gles as at least one of the flags. Known issues: -Only OpenGL ES 3 is supported, ANGLE's ES 2 does not support the needed extensions, notably GL_OES_vertex_array_object, but its ES 3 support is sufficient. -There is no autodetection or fallback mechanism to enable using EGL/Angle automatically yet. There are no plans to do this in this commit.
163 lines
4.7 KiB
C
163 lines
4.7 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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#ifndef __GDK_DISPLAY__WIN32_H__
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#define __GDK_DISPLAY__WIN32_H__
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#include "gdkwin32screen.h"
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#include "gdkwin32cursor.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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/* 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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typedef enum _GdkWin32MonitorDpiType {
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MDT_EFFECTIVE_DPI = 0,
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MDT_ANGULAR_DPI = 1,
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MDT_RAW_DPI = 2,
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MDT_DEFAULT = MDT_EFFECTIVE_DPI
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} GdkWin32MonitorDpiType;
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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, 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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struct _GdkWin32Display
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{
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GdkDisplay display;
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GdkWin32Screen *screen;
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Win32CursorTheme *cursor_theme;
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char *cursor_theme_name;
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int cursor_theme_size;
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HWND 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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GListModel *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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#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 surface_scale;
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GdkWin32ShcoreFuncs shcore_funcs;
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GdkWin32User32DPIFuncs user32_dpi_funcs;
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/* Cursor Items (GdkCursor->GdkWin32HCursor) */
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GHashTable *cursors;
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/* The cursor that is used by current grab (if any) */
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GdkWin32HCursor *grab_cursor;
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/* HCURSOR -> GdkWin32HCursorTableEntry */
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GHashTable *cursor_reftable;
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/* ID of the idle callback scheduled to destroy cursors */
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guint idle_cursor_destructor_id;
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/* A list of cursor handles slated for destruction. */
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GList *cursors_for_destruction;
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/* Message filters */
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GList *filters;
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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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void _gdk_win32_display_init_monitors (GdkWin32Display *display);
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GPtrArray *_gdk_win32_display_get_monitor_list (GdkWin32Display *display);
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void gdk_win32_display_check_composited (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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int *dpi);
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typedef struct _GdkWin32MessageFilter GdkWin32MessageFilter;
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struct _GdkWin32MessageFilter
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{
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GdkWin32MessageFilterFunc function;
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gpointer data;
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gboolean removed;
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guint ref_count;
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};
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#endif /* __GDK_DISPLAY__WIN32_H__ */
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