SDL
2.0
SDL_rpiopengles.c
Go to the documentation of this file.
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#include "
SDL_hints.h
"
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#include "
SDL_log.h
"
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#if SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL
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#include "
SDL_rpivideo.h
"
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#include "
SDL_rpiopengles.h
"
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/* EGL implementation of SDL OpenGL support */
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void
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RPI_GLES_DefaultProfileConfig(
_THIS
,
int
*
mask
,
int
*major,
int
*minor)
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{
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*
mask
=
SDL_GL_CONTEXT_PROFILE_ES
;
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*major = 2;
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*minor = 0;
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}
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int
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RPI_GLES_LoadLibrary
(
_THIS
,
const
char
*
path
) {
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return
SDL_EGL_LoadLibrary(
_this
,
path
,
EGL_DEFAULT_DISPLAY
, 0);
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}
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int
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RPI_GLES_SwapWindow
(
_THIS
,
SDL_Window
*
window
) {
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SDL_WindowData
*wdata = ((
SDL_WindowData
*)
window
->driverdata);
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if
(!(
_this
->egl_data->eglSwapBuffers(
_this
->egl_data->egl_display, wdata->
egl_surface
))) {
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SDL_LogError
(
SDL_LOG_CATEGORY_VIDEO
,
"eglSwapBuffers failed."
);
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return
0;
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}
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/* Wait immediately for vsync (as if we only had two buffers), for low input-lag scenarios.
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* Run your SDL2 program with "SDL_RPI_DOUBLE_BUFFER=1 <program_name>" to enable this. */
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if
(wdata->
double_buffer
) {
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SDL_LockMutex
(wdata->
vsync_cond_mutex
);
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SDL_CondWait
(wdata->
vsync_cond
, wdata->
vsync_cond_mutex
);
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SDL_UnlockMutex
(wdata->
vsync_cond_mutex
);
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}
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return
0;
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}
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SDL_EGL_CreateContext_impl(RPI)
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SDL_EGL_MakeCurrent_impl(RPI)
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#endif
/* SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL */
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/* vi: set ts=4 sw=4 expandtab: */
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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
src
video
raspberry
SDL_rpiopengles.c
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