SDL  2.0
SDL_egl_c.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2019 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 typedef struct SDL_EGL_VideoData
33 {
34  void *egl_dll_handle, *dll_handle;
35  EGLDisplay egl_display;
36  EGLConfig egl_config;
37  int egl_swapinterval;
38  int egl_surfacetype;
39  int egl_version_major, egl_version_minor;
40  EGLint egl_required_visual_id;
41 
44  void *native_display,
45  const EGLint *attrib_list);
46  EGLDisplay(EGLAPIENTRY *eglGetPlatformDisplayEXT) (EGLenum platform,
47  void *native_display,
48  const EGLint *attrib_list);
50  EGLint * minor);
52 
53  void *(EGLAPIENTRY *eglGetProcAddress) (const char * procName);
54 
56  const EGLint * attrib_list,
57  EGLConfig * configs,
58  EGLint config_size, EGLint * num_config);
59 
62  EGLContext share_list,
63  const EGLint * attrib_list);
64 
66 
68  EGLint const* attrib_list);
69 
73  const EGLint * attrib_list);
75 
77  EGLSurface read, EGLContext ctx);
78 
80 
82 
83  const char *(EGLAPIENTRY *eglQueryString) (EGLDisplay dpy, EGLint name);
84 
87 
89 
91 
93 
95 
96 } SDL_EGL_VideoData;
97 
98 /* OpenGLES functions */
99 extern int SDL_EGL_GetAttribute(_THIS, SDL_GLattr attrib, int *value);
100 /* SDL_EGL_LoadLibrary can get a display for a specific platform (EGL_PLATFORM_*)
101  * or, if 0 is passed, let the implementation decide.
102  */
103 extern int SDL_EGL_LoadLibrary(_THIS, const char *path, NativeDisplayType native_display, EGLenum platform);
104 extern void *SDL_EGL_GetProcAddress(_THIS, const char *proc);
105 extern void SDL_EGL_UnloadLibrary(_THIS);
106 extern void SDL_EGL_SetRequiredVisualId(_THIS, int visual_id);
107 extern int SDL_EGL_ChooseConfig(_THIS);
108 extern int SDL_EGL_SetSwapInterval(_THIS, int interval);
109 extern int SDL_EGL_GetSwapInterval(_THIS);
110 extern void SDL_EGL_DeleteContext(_THIS, SDL_GLContext context);
111 extern EGLSurface *SDL_EGL_CreateSurface(_THIS, NativeWindowType nw);
112 extern void SDL_EGL_DestroySurface(_THIS, EGLSurface egl_surface);
113 
114 /* These need to be wrapped to get the surface for the window by the platform GLES implementation */
115 extern SDL_GLContext SDL_EGL_CreateContext(_THIS, EGLSurface egl_surface);
116 extern int SDL_EGL_MakeCurrent(_THIS, EGLSurface egl_surface, SDL_GLContext context);
117 extern int SDL_EGL_SwapBuffers(_THIS, EGLSurface egl_surface);
118 
119 /* SDL Error-reporting */
120 extern int SDL_EGL_SetErrorEx(const char * message, const char * eglFunctionName, EGLint eglErrorCode);
121 #define SDL_EGL_SetError(message, eglFunctionName) SDL_EGL_SetErrorEx(message, eglFunctionName, _this->egl_data->eglGetError())
122 
123 /* A few of useful macros */
124 
125 #define SDL_EGL_SwapWindow_impl(BACKEND) int \
126 BACKEND ## _GLES_SwapWindow(_THIS, SDL_Window * window) \
127 {\
128  return SDL_EGL_SwapBuffers(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);\
129 }
130 
131 #define SDL_EGL_MakeCurrent_impl(BACKEND) int \
132 BACKEND ## _GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) \
133 {\
134  if (window && context) { \
135  return SDL_EGL_MakeCurrent(_this, ((SDL_WindowData *) window->driverdata)->egl_surface, context); \
136  }\
137  else {\
138  return SDL_EGL_MakeCurrent(_this, NULL, NULL);\
139  }\
140 }
141 
142 #define SDL_EGL_CreateContext_impl(BACKEND) SDL_GLContext \
143 BACKEND ## _GLES_CreateContext(_THIS, SDL_Window * window) \
144 {\
145  return SDL_EGL_CreateContext(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);\
146 }
147 
148 #endif /* SDL_VIDEO_OPENGL_EGL */
149 
150 #endif /* SDL_egl_h_ */
151 
152 /* vi: set ts=4 sw=4 expandtab: */
EGLAPI EGLBoolean EGLAPIENTRY eglTerminate(EGLDisplay dpy)
EGLAPI const char *EGLAPIENTRY eglQueryString(EGLDisplay dpy, EGLint name)
void * EGLSurface
Definition: egl.h:59
EGLAPI EGLBoolean EGLAPIENTRY eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
EGLenum const EGLAttribKHR * attrib_list
Definition: eglext.h:63
EGLAPI EGLSurface EGLAPIENTRY eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint *attrib_list)
void * EGLConfig
Definition: egl.h:58
EGLAPI EGLBoolean EGLAPIENTRY eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx)
GLuint GLsizei const GLchar * message
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display dpy)
Definition: SDL_x11sym.h:44
EGLSurface surface
Definition: eglext.h:248
static screen_context_t context
Definition: video.c:25
EGLAPI EGLint EGLAPIENTRY eglGetError(void)
EGLAPI EGLSurface EGLAPIENTRY eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list)
EGLAPI __eglMustCastToProperFunctionPointerType EGLAPIENTRY eglGetProcAddress(const char *procname)
void * EGLDisplay
Definition: egl.h:55
EGLAPI EGLBoolean EGLAPIENTRY eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value)
EGLAPI EGLBoolean EGLAPIENTRY eglBindAPI(EGLenum api)
unsigned int EGLenum
Definition: egl.h:171
GLuint const GLchar * name
unsigned int EGLBoolean
Definition: egl.h:54
EGLAPI EGLBoolean EGLAPIENTRY eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config)
EGLNativeWindowType NativeWindowType
Definition: eglplatform.h:112
EGLAPI EGLBoolean EGLAPIENTRY eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
SDL_GLattr
OpenGL configuration attributes.
Definition: SDL_video.h:198
void * EGLContext
Definition: egl.h:60
#define EGLAPIENTRY
Definition: eglplatform.h:54
void * SDL_GLContext
An opaque handle to an OpenGL context.
Definition: SDL_video.h:193
void * native_display
Definition: eglext.h:789
#define _THIS
khronos_int32_t EGLint
Definition: eglplatform.h:122
GLsizei const GLfloat * value
EGLAPI EGLDisplay EGLAPIENTRY eglGetDisplay(EGLNativeDisplayType display_id)
EGLAPI EGLBoolean EGLAPIENTRY eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 void
EGLConfig config
Definition: eglext.h:433
EGLAPI EGLBoolean EGLAPIENTRY eglWaitGL(void)
EGLAPI EGLBoolean EGLAPIENTRY eglSwapInterval(EGLDisplay dpy, EGLint interval)
EGLNativeDisplayType NativeDisplayType
Definition: eglplatform.h:110
EGLAPI EGLBoolean EGLAPIENTRY eglWaitNative(EGLint engine)
GLsizei const GLchar *const * path
EGLSurface EGLint attribute
Definition: eglext.h:263
EGLAPI EGLDisplay EGLAPIENTRY eglGetPlatformDisplay(EGLenum platform, void *native_display, const EGLAttrib *attrib_list)
EGLAPI EGLContext EGLAPIENTRY eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list)
EGLAPI EGLBoolean EGLAPIENTRY eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
EGLContext ctx
Definition: eglext.h:208