SDL 2.0
SDL_rpiopengles.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#include "SDL_hints.h"
23#include "SDL_log.h"
24
25#if SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL
26
27#include "SDL_rpivideo.h"
28#include "SDL_rpiopengles.h"
29
30/* EGL implementation of SDL OpenGL support */
31
32void
33RPI_GLES_DefaultProfileConfig(_THIS, int *mask, int *major, int *minor)
34{
36 *major = 2;
37 *minor = 0;
38}
39
40int
41RPI_GLES_LoadLibrary(_THIS, const char *path) {
42 return SDL_EGL_LoadLibrary(_this, path, EGL_DEFAULT_DISPLAY, 0);
43}
44
45int
47 SDL_WindowData *wdata = ((SDL_WindowData *) window->driverdata);
48
49 if (!(_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, wdata->egl_surface))) {
50 SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "eglSwapBuffers failed.");
51 return 0;
52 }
53
54 /* Wait immediately for vsync (as if we only had two buffers), for low input-lag scenarios.
55 * Run your SDL2 program with "SDL_RPI_DOUBLE_BUFFER=1 <program_name>" to enable this. */
56 if (wdata->double_buffer) {
60 }
61
62 return 0;
63}
64
65SDL_EGL_CreateContext_impl(RPI)
66SDL_EGL_MakeCurrent_impl(RPI)
67
68#endif /* SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL */
69
70/* vi: set ts=4 sw=4 expandtab: */
71
#define _THIS
#define SDL_CondWait
#define SDL_LockMutex
#define SDL_LogError
#define SDL_UnlockMutex
@ SDL_LOG_CATEGORY_VIDEO
Definition: SDL_log.h:71
GLsizei const GLchar *const * path
GLenum GLint GLuint mask
int RPI_GLES_SwapWindow(_THIS, SDL_Window *window)
int RPI_GLES_LoadLibrary(_THIS, const char *path)
static SDL_VideoDevice * _this
Definition: SDL_video.c:118
@ SDL_GL_CONTEXT_PROFILE_ES
Definition: SDL_video.h:233
#define EGL_DEFAULT_DISPLAY
Definition: egl.h:227
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_bool double_buffer
SDL_cond * vsync_cond
Definition: SDL_rpivideo.h:53
EGLSurface egl_surface
SDL_mutex * vsync_cond_mutex
Definition: SDL_rpivideo.h:54
The type used to identify a window.
Definition: SDL_sysvideo.h:74