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generic-pc: add alternative clutter based framebuffer

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Add a framebuffer implementation based on clutter instead of "raw"
OpenGL. The performance is slightly worse, but it might bring some
platform abstraction and other benefits for the future.
This commit is contained in:
Stefan Seyfried
2016-10-30 13:08:34 +01:00
committed by Thilo Graf
parent 9a5bc535b4
commit c8c7f0c45f
6 changed files with 553 additions and 19 deletions
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33
generic-pc/glfb.h
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@@ -1,6 +1,6 @@
/*
Copyright 2010 Carsten Juttner <carjay@gmx.net>
Copyright 2012,2013 Stefan Seyfried <seife@tuxboxcvs.slipkontur.de>
Copyright 2012,2013,2016 Stefan Seyfried <seife@tuxboxcvs.slipkontur.de>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -18,14 +18,20 @@
#ifndef __glthread__
#define __glthread__
#include <config.h>
#include <OpenThreads/Thread>
#include <OpenThreads/Mutex>
#include <vector>
#include <map>
#if USE_OPENGL
#include <GL/glew.h>
#include <GL/freeglut.h>
#include <GL/gl.h>
#include <linux/fb.h> /* for screeninfo etc. */
#endif
#if USE_CLUTTER
#include <clutter/clutter.h>
#endif
extern "C" {
#include <libavutil/rational.h>
}
@@ -35,18 +41,15 @@ class GLFramebuffer : public OpenThreads::Thread
public:
GLFramebuffer(int x, int y);
~GLFramebuffer();
void run();
std::vector<unsigned char> *getOSDBuffer() { return &mOSDBuffer; } /* pointer to OSD bounce buffer */
int getOSDWidth() { return mState.width; }
int getOSDHeight() { return mState.height; }
void blit() { mState.blit = true; }
fb_var_screeninfo getScreenInfo() { return screeninfo; }
void setOutputFormat(AVRational a, int h, int c) { mOA = a; *mY = h; mCrop = c; mReInit = true; }
void clear();
fb_var_screeninfo getScreenInfo() { return screeninfo; }
int getWindowID() { return GLWinID; }
private:
@@ -74,33 +77,45 @@ private:
std::vector<unsigned char> mOSDBuffer; /* silly bounce buffer */
#if USE_OPENGL
std::map<unsigned char, int> mKeyMap;
std::map<int, int> mSpecialMap;
#endif
#if USE_CLUTTER
std::map<int, int> mKeyMap;
#endif
int input_fd;
int64_t last_apts;
static void rendercb(); /* callback for GLUT */
void render(); /* actual render function */
#if USE_OPENGL
static void keyboardcb(unsigned char key, int x, int y);
static void specialcb(int key, int x, int y);
static void resizecb(int w, int h);
void checkReinit(int w, int h); /* e.g. in case window was resized */
void setupGLObjects(); /* PBOs, textures and stuff */
void releaseGLObjects();
void drawSquare(float size, float x_factor = 1); /* do not be square */
#endif
#if USE_CLUTTER
static bool keyboardcb(ClutterActor *actor, ClutterEvent *event, gpointer user_data);
#endif
void initKeys(); /* setup key bindings for window */
void setupCtx(); /* create the window and make the context current */
void setupOSDBuffer(); /* create the OSD buffer */
void setupGLObjects(); /* PBOs, textures and stuff */
void releaseGLObjects();
void drawSquare(float size, float x_factor = 1); /* do not be square */
struct {
int width; /* width and height, fixed for a framebuffer instance */
int height;
bool blit;
#if USE_OPENGL
GLuint osdtex; /* holds the OSD texture */
GLuint pbo; /* PBO we use for transfer to texture */
GLuint displaytex; /* holds the display texture */
GLuint displaypbo;
bool blit;
#endif
} mState;
void bltOSDBuffer();