1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20*/
21#include "../SDL_internal.h"
22
23#ifndef SDL_egl_h_
24#define SDL_egl_h_
25
26#if SDL_VIDEO_OPENGL_EGL
27
28#include "SDL_egl.h"
29
30#include "SDL_sysvideo.h"
31
32#define SDL_EGL_MAX_DEVICES 8
33
34typedef struct SDL_EGL_VideoData
35{
36 void *egl_dll_handle, *dll_handle;
37 EGLDisplay egl_display;
38 EGLConfig egl_config;
39 int egl_swapinterval;
40 int egl_surfacetype;
41 int egl_version_major, egl_version_minor;
42 EGLint egl_required_visual_id;
43
44 EGLDisplay(EGLAPIENTRY *eglGetDisplay) (NativeDisplayType display);
45 EGLDisplay(EGLAPIENTRY *eglGetPlatformDisplay) (EGLenum platform,
46 void *native_display,
47 const EGLint *attrib_list);
48 EGLDisplay(EGLAPIENTRY *eglGetPlatformDisplayEXT) (EGLenum platform,
49 void *native_display,
50 const EGLint *attrib_list);
51 EGLBoolean(EGLAPIENTRY *eglInitialize) (EGLDisplay dpy, EGLint * major,
52 EGLint * minor);
53 EGLBoolean(EGLAPIENTRY *eglTerminate) (EGLDisplay dpy);
54
55 void *(EGLAPIENTRY *eglGetProcAddress) (const char * procName);
56
57 EGLBoolean(EGLAPIENTRY *eglChooseConfig) (EGLDisplay dpy,
58 const EGLint * attrib_list,
59 EGLConfig * configs,
60 EGLint config_size, EGLint * num_config);
61
62 EGLContext(EGLAPIENTRY *eglCreateContext) (EGLDisplay dpy,
63 EGLConfig config,
64 EGLContext share_list,
65 const EGLint * attrib_list);
66
67 EGLBoolean(EGLAPIENTRY *eglDestroyContext) (EGLDisplay dpy, EGLContext ctx);
68
69 EGLSurface(EGLAPIENTRY *eglCreatePbufferSurface)(EGLDisplay dpy, EGLConfig config,
70 EGLint const* attrib_list);
71
72 EGLSurface(EGLAPIENTRY *eglCreateWindowSurface) (EGLDisplay dpy,
73 EGLConfig config,
74 NativeWindowType window,
75 const EGLint * attrib_list);
76 EGLBoolean(EGLAPIENTRY *eglDestroySurface) (EGLDisplay dpy, EGLSurface surface);
77
78 EGLBoolean(EGLAPIENTRY *eglMakeCurrent) (EGLDisplay dpy, EGLSurface draw,
79 EGLSurface read, EGLContext ctx);
80
81 EGLBoolean(EGLAPIENTRY *eglSwapBuffers) (EGLDisplay dpy, EGLSurface draw);
82
83 EGLBoolean(EGLAPIENTRY *eglSwapInterval) (EGLDisplay dpy, EGLint interval);
84
85 const char *(EGLAPIENTRY *eglQueryString) (EGLDisplay dpy, EGLint name);
86
87 EGLenum(EGLAPIENTRY *eglQueryAPI)(void);
88
89 EGLBoolean(EGLAPIENTRY *eglGetConfigAttrib) (EGLDisplay dpy, EGLConfig config,
90 EGLint attribute, EGLint * value);
91
92 EGLBoolean(EGLAPIENTRY *eglWaitNative) (EGLint engine);
93
94 EGLBoolean(EGLAPIENTRY *eglWaitGL)(void);
95
96 EGLBoolean(EGLAPIENTRY *eglBindAPI)(EGLenum);
97
98 EGLint(EGLAPIENTRY *eglGetError)(void);
99
100 EGLBoolean(EGLAPIENTRY *eglQueryDevicesEXT)(EGLint max_devices,
101 void **devices,
102 EGLint *num_devices);
103
104 /* Atomic functions */
105
106 EGLSyncKHR(EGLAPIENTRY *eglCreateSyncKHR)(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list);
107
108 EGLBoolean(EGLAPIENTRY *eglDestroySyncKHR)(EGLDisplay dpy, EGLSyncKHR sync);
109
110 EGLint(EGLAPIENTRY *eglDupNativeFenceFDANDROID)(EGLDisplay dpy, EGLSyncKHR sync);
111
112 EGLint(EGLAPIENTRY *eglWaitSyncKHR)(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags);
113
114 EGLint(EGLAPIENTRY *eglClientWaitSyncKHR)(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout);
115
116 /* Atomic functions end */
117
118
119 /* whether EGL display was offscreen */
120 int is_offscreen;
121
122} SDL_EGL_VideoData;
123
124/* OpenGLES functions */
125typedef enum SDL_EGL_ExtensionType {
126 SDL_EGL_DISPLAY_EXTENSION,
127 SDL_EGL_CLIENT_EXTENSION
128} SDL_EGL_ExtensionType;
129
130extern SDL_bool SDL_EGL_HasExtension(_THIS, SDL_EGL_ExtensionType type, const char *ext);
131
132extern int SDL_EGL_GetAttribute(_THIS, SDL_GLattr attrib, int *value);
133/* SDL_EGL_LoadLibrary can get a display for a specific platform (EGL_PLATFORM_*)
134 * or, if 0 is passed, let the implementation decide.
135 */
136extern int SDL_EGL_LoadLibraryOnly(_THIS, const char *path);
137extern int SDL_EGL_LoadLibrary(_THIS, const char *path, NativeDisplayType native_display, EGLenum platform);
138extern void *SDL_EGL_GetProcAddress(_THIS, const char *proc);
139extern void SDL_EGL_UnloadLibrary(_THIS);
140extern void SDL_EGL_SetRequiredVisualId(_THIS, int visual_id);
141extern int SDL_EGL_ChooseConfig(_THIS);
142extern int SDL_EGL_SetSwapInterval(_THIS, int interval);
143extern int SDL_EGL_GetSwapInterval(_THIS);
144extern void SDL_EGL_DeleteContext(_THIS, SDL_GLContext context);
145extern EGLSurface *SDL_EGL_CreateSurface(_THIS, NativeWindowType nw);
146extern void SDL_EGL_DestroySurface(_THIS, EGLSurface egl_surface);
147
148extern EGLSurface SDL_EGL_CreateOffscreenSurface(_THIS, int width, int height);
149/* Assumes that LoadLibraryOnly() has succeeded */
150extern int SDL_EGL_InitializeOffscreen(_THIS, int device);
151
152/* These need to be wrapped to get the surface for the window by the platform GLES implementation */
153extern SDL_GLContext SDL_EGL_CreateContext(_THIS, EGLSurface egl_surface);
154extern int SDL_EGL_MakeCurrent(_THIS, EGLSurface egl_surface, SDL_GLContext context);
155extern int SDL_EGL_SwapBuffers(_THIS, EGLSurface egl_surface);
156
157/* SDL Error-reporting */
158extern int SDL_EGL_SetErrorEx(const char * message, const char * eglFunctionName, EGLint eglErrorCode);
159#define SDL_EGL_SetError(message, eglFunctionName) SDL_EGL_SetErrorEx(message, eglFunctionName, _this->egl_data->eglGetError())
160
161/* A few of useful macros */
162
163#define SDL_EGL_SwapWindow_impl(BACKEND) int \
164BACKEND ## _GLES_SwapWindow(_THIS, SDL_Window * window) \
165{\
166 return SDL_EGL_SwapBuffers(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);\
167}
168
169#define SDL_EGL_MakeCurrent_impl(BACKEND) int \
170BACKEND ## _GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) \
171{\
172 return SDL_EGL_MakeCurrent(_this, window ? ((SDL_WindowData *) window->driverdata)->egl_surface : EGL_NO_SURFACE, context);\
173}
174
175#define SDL_EGL_CreateContext_impl(BACKEND) SDL_GLContext \
176BACKEND ## _GLES_CreateContext(_THIS, SDL_Window * window) \
177{\
178 return SDL_EGL_CreateContext(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);\
179}
180
181#endif /* SDL_VIDEO_OPENGL_EGL */
182
183#endif /* SDL_egl_h_ */
184
185/* vi: set ts=4 sw=4 expandtab: */
186