SDL 2.0
SDL_x11opengles.c
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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#if SDL_VIDEO_DRIVER_X11 && SDL_VIDEO_OPENGL_EGL
24
25#include "SDL_x11video.h"
26#include "SDL_x11opengles.h"
27#include "SDL_x11opengl.h"
28
29/* EGL implementation of SDL OpenGL support */
30
31int
32X11_GLES_LoadLibrary(_THIS, const char *path)
33{
35
36 /* If the profile requested is not GL ES, switch over to X11_GL functions */
38 #if SDL_VIDEO_OPENGL_GLX
39 X11_GLES_UnloadLibrary(_this);
40 _this->GL_LoadLibrary = X11_GL_LoadLibrary;
41 _this->GL_GetProcAddress = X11_GL_GetProcAddress;
42 _this->GL_UnloadLibrary = X11_GL_UnloadLibrary;
43 _this->GL_CreateContext = X11_GL_CreateContext;
44 _this->GL_MakeCurrent = X11_GL_MakeCurrent;
45 _this->GL_SetSwapInterval = X11_GL_SetSwapInterval;
46 _this->GL_GetSwapInterval = X11_GL_GetSwapInterval;
47 _this->GL_SwapWindow = X11_GL_SwapWindow;
48 _this->GL_DeleteContext = X11_GL_DeleteContext;
49 return X11_GL_LoadLibrary(_this, path);
50 #else
51 return SDL_SetError("SDL not configured with OpenGL/GLX support");
52 #endif
53 }
54
55 return SDL_EGL_LoadLibrary(_this, path, (NativeDisplayType) data->display, 0);
56}
57
58XVisualInfo *
59X11_GLES_GetVisual(_THIS, Display * display, int screen)
60{
61
62 XVisualInfo *egl_visualinfo = NULL;
63 EGLint visual_id;
64 XVisualInfo vi_in;
65 int out_count;
66
67 if (!_this->egl_data) {
68 /* The EGL library wasn't loaded, SDL_GetError() should have info */
69 return NULL;
70 }
71
72 if (_this->egl_data->eglGetConfigAttrib(_this->egl_data->egl_display,
73 _this->egl_data->egl_config,
75 &visual_id) == EGL_FALSE || !visual_id) {
76 /* Use the default visual when all else fails */
77 vi_in.screen = screen;
78 egl_visualinfo = X11_XGetVisualInfo(display,
79 VisualScreenMask,
80 &vi_in, &out_count);
81 } else {
82 vi_in.screen = screen;
83 vi_in.visualid = visual_id;
84 egl_visualinfo = X11_XGetVisualInfo(display, VisualScreenMask | VisualIDMask, &vi_in, &out_count);
85 }
86
87 return egl_visualinfo;
88}
89
91X11_GLES_CreateContext(_THIS, SDL_Window * window)
92{
94 SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
95 Display *display = data->videodata->display;
96
97 X11_XSync(display, False);
98 context = SDL_EGL_CreateContext(_this, data->egl_surface);
99 X11_XSync(display, False);
100
101 return context;
102}
103
104SDL_EGL_SwapWindow_impl(X11)
105SDL_EGL_MakeCurrent_impl(X11)
106
107#endif /* SDL_VIDEO_DRIVER_X11 && SDL_VIDEO_OPENGL_EGL */
108
109/* vi: set ts=4 sw=4 expandtab: */
#define _THIS
#define SDL_SetError
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
GLsizei const GLchar *const * path
static SDL_VideoDevice * _this
Definition: SDL_video.c:118
void * SDL_GLContext
An opaque handle to an OpenGL context.
Definition: SDL_video.h:193
@ SDL_GL_CONTEXT_PROFILE_ES
Definition: SDL_video.h:233
#define NULL
Definition: begin_code.h:167
#define EGL_NATIVE_VISUAL_ID
Definition: egl.h:93
#define EGL_FALSE
Definition: egl.h:84
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
khronos_int32_t EGLint
Definition: eglplatform.h:122
EGLNativeDisplayType NativeDisplayType
Definition: eglplatform.h:110
struct wl_display * display
void(* GL_DeleteContext)(_THIS, SDL_GLContext context)
Definition: SDL_sysvideo.h:264
int(* GL_MakeCurrent)(_THIS, SDL_Window *window, SDL_GLContext context)
Definition: SDL_sysvideo.h:259
SDL_GLContext(* GL_CreateContext)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:258
int(* GL_SetSwapInterval)(_THIS, int interval)
Definition: SDL_sysvideo.h:261
void(* GL_UnloadLibrary)(_THIS)
Definition: SDL_sysvideo.h:257
int(* GL_GetSwapInterval)(_THIS)
Definition: SDL_sysvideo.h:262
int(* GL_LoadLibrary)(_THIS, const char *path)
Definition: SDL_sysvideo.h:255
int(* GL_SwapWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:263
struct SDL_VideoDevice::@262 gl_config
void *(* GL_GetProcAddress)(_THIS, const char *proc)
Definition: SDL_sysvideo.h:256
struct SDL_VideoData * videodata
The type used to identify a window.
Definition: SDL_sysvideo.h:74
SDL_Renderer * screen
static screen_context_t context
Definition: video.c:25