SDL_rpiopengles.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#include "SDL_hints.h"
#include "SDL_log.h"
#if SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL
#include "SDL_rpivideo.h"
#include "SDL_rpiopengles.h"
/* EGL implementation of SDL OpenGL support */
void
RPI_GLES_DefaultProfileConfig(_THIS, int *mask, int *major, int *minor)
{
*mask = SDL_GL_CONTEXT_PROFILE_ES;
*major = 2;
*minor = 0;
}
int
RPI_GLES_LoadLibrary(_THIS, const char *path) {
return SDL_EGL_LoadLibrary(_this, path, EGL_DEFAULT_DISPLAY, 0);
}
int
RPI_GLES_SwapWindow(_THIS, SDL_Window * window) {
SDL_WindowData *wdata = ((SDL_WindowData *) window->driverdata);
if (!(_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, wdata->egl_surface))) {
SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "eglSwapBuffers failed.");
return 0;
}
/* Wait immediately for vsync (as if we only had two buffers), for low input-lag scenarios.
* Run your SDL2 program with "SDL_RPI_DOUBLE_BUFFER=1 <program_name>" to enable this. */
if (wdata->double_buffer) {
SDL_LockMutex(wdata->vsync_cond_mutex);
SDL_CondWait(wdata->vsync_cond, wdata->vsync_cond_mutex);
SDL_UnlockMutex(wdata->vsync_cond_mutex);
}
return 0;
}
SDL_EGL_CreateContext_impl(RPI)
SDL_EGL_MakeCurrent_impl(RPI)
#endif /* SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL */
/* vi: set ts=4 sw=4 expandtab: */
SDL_WindowData::vsync_cond_mutex
SDL_mutex * vsync_cond_mutex
Definition: SDL_rpivideo.h:54
mask
GLenum GLint GLuint mask
Definition: SDL_opengl_glext.h:657
SDL_WindowData::vsync_cond
SDL_cond * vsync_cond
Definition: SDL_rpivideo.h:53
SDL_LockMutex
#define SDL_LockMutex
Definition: SDL_dynapi_overrides.h:260
EGL_DEFAULT_DISPLAY
#define EGL_DEFAULT_DISPLAY
Definition: egl.h:227
SDL_log.h
SDL_WindowData
Definition: SDL_androidwindow.h:38
SDL_rpivideo.h
RPI_GLES_SwapWindow
int RPI_GLES_SwapWindow(_THIS, SDL_Window *window)
path
GLsizei const GLchar *const * path
Definition: SDL_opengl_glext.h:3730
SDL_LogError
#define SDL_LogError
Definition: SDL_dynapi_overrides.h:36
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_CondWait
#define SDL_CondWait
Definition: SDL_dynapi_overrides.h:275
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:118
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_GL_CONTEXT_PROFILE_ES
@ SDL_GL_CONTEXT_PROFILE_ES
Definition: SDL_video.h:233
SDL_LOG_CATEGORY_VIDEO
@ SDL_LOG_CATEGORY_VIDEO
Definition: SDL_log.h:71
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_WindowData::double_buffer
SDL_bool double_buffer
Definition: SDL_kmsdrmvideo.h:68
RPI_GLES_LoadLibrary
int RPI_GLES_LoadLibrary(_THIS, const char *path)
SDL_hints.h
SDL_rpiopengles.h
SDL_UnlockMutex
#define SDL_UnlockMutex
Definition: SDL_dynapi_overrides.h:262
SDL_WindowData::egl_surface
EGLSurface egl_surface
Definition: SDL_androidwindow.h:40