--- a/hostsupport/hostopenvg/src/src/linux/riEGLOS.cpp Wed Oct 06 17:59:01 2010 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,258 +0,0 @@
-/*------------------------------------------------------------------------
- *
- * EGL 1.3
- * -------
- *
- * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and /or associated documentation files
- * (the "Materials "), to deal in the Materials without restriction,
- * including without limitation the rights to use, copy, modify, merge,
- * publish, distribute, sublicense, and/or sell copies of the Materials,
- * and to permit persons to whom the Materials are furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Materials.
- *
- * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
- * THE USE OR OTHER DEALINGS IN THE MATERIALS.
- *
- *//**
- * \file
- * \brief Linux specific EGL functionality, modified from macosx source file
- * \note
- *//*-------------------------------------------------------------------*/
-
-#include "riEGLOS.h"
-
-#include <pthread.h>
-#include <sys/errno.h>
-#include <GL/gl.h>
-#include <GL/glut.h>
-
-#if defined(None)
-# undef None
-#endif
-
-#include "sfCompiler.h"
-
-namespace OpenVGRI
-{
-
-/*-------------------------------------------------------------------*//*!
-* \brief
-* \param
-* \return
-* \note
-*//*-------------------------------------------------------------------*/
-
-void* OSGetCurrentThreadID(void)
-{
- return (void*)pthread_self(); //TODO this is not safe
-}
-
-/*-------------------------------------------------------------------*//*!
-* \brief
-* \param
-* \return
-* \note
-*//*-------------------------------------------------------------------*/
-
-static pthread_mutex_t mutex;
-static int mutexRefCount = 0;
-static bool mutexInitialized = false;
-//acquired mutex cannot be deinited
-void OSDeinitMutex(void)
-{
- RI_ASSERT(mutexInitialized);
- RI_ASSERT(mutexRefCount == 0);
- int ret = pthread_mutex_destroy(&mutex);
- RI_ASSERT(ret != EINVAL); //assert that the mutex has been initialized
- RI_ASSERT(ret != EAGAIN); //assert that the maximum number of recursive locks hasn't been exceeded
- RI_ASSERT(!ret); //check that there aren't other errors
- RI_UNREF(ret);
-}
-void OSAcquireMutex(void)
-{
- if(!mutexInitialized)
- {
- int ret;
- pthread_mutexattr_t attr;
- ret = pthread_mutexattr_init(&attr); //initially not locked
- RI_ASSERT(!ret); //check that there aren't any errors
- ret = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); //count the number of recursive locks
- RI_ASSERT(!ret); //check that there aren't any errors
- ret = pthread_mutex_init(&mutex, &attr);
- pthread_mutexattr_destroy(&attr);
- RI_ASSERT(!ret); //check that there aren't more errors
- RI_UNREF(ret);
- mutexInitialized = true;
- }
- int ret = pthread_mutex_lock(&mutex);
- RI_ASSERT(ret != EINVAL); //assert that the mutex has been initialized
- RI_ASSERT(ret != EAGAIN); //assert that the maximum number of recursive locks hasn't been exceeded
- RI_ASSERT(ret != EDEADLK); //recursive mutexes shouldn't return this
- RI_ASSERT(!ret); //check that there aren't other errors
- RI_UNREF(ret);
- mutexRefCount++;
-}
-void OSReleaseMutex(void)
-{
- RI_ASSERT(mutexInitialized);
- mutexRefCount--;
- RI_ASSERT(mutexRefCount >= 0);
- int ret = pthread_mutex_unlock(&mutex);
- RI_ASSERT(ret != EPERM); //assert that the current thread owns the mutex
- RI_ASSERT(!ret); //check that there aren't more errors
- RI_UNREF(ret);
-}
-
-/*-------------------------------------------------------------------*//*!
-* \brief
-* \param
-* \return
-* \note
-*//*-------------------------------------------------------------------*/
-
-static bool isBigEndian()
-{
- static const RIuint32 v = 0x12345678u;
- const RIuint8* p = (const RIuint8*)&v;
- RI_ASSERT (*p == (RIuint8)0x12u || *p == (RIuint8)0x78u);
- return (*p == (RIuint8)(0x12)) ? true : false;
-}
-
-
-/*-------------------------------------------------------------------*//*!
-* \brief
-* \param
-* \return
-* \note
-*//*-------------------------------------------------------------------*/
-
-OSWindowContext* OSCreateWindowContext(EGLNativeWindowType window)
-{
- try
- {
- OSWindowContext* ctx = RI_NEW(OSWindowContext, ());
- ctx->window = (int)window;
- ctx->tmp = NULL;
- ctx->tmpWidth = 0;
- ctx->tmpHeight = 0;
- return ctx;
- }
- catch(std::bad_alloc)
- {
- return NULL;
- }
-}
-
-void OSDestroyWindowContext(OSWindowContext* ctx)
-{
- if(ctx)
- {
- RI_DELETE_ARRAY(ctx->tmp);
- RI_DELETE(ctx);
- }
-}
-
-bool OSIsWindow(const OSWindowContext* context)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- //TODO implement
- return true;
- }
- return false;
-}
-
-void OSGetWindowSize(const OSWindowContext* ctx, int& width, int& height)
-{
- if(ctx)
- {
- int currWin = glutGetWindow();
- glutSetWindow((int)ctx->window);
- width = glutGet(GLUT_WINDOW_WIDTH);
- height = glutGet(GLUT_WINDOW_HEIGHT);
- glutSetWindow(currWin);
- }
- else
- {
- width = 0;
- height = 0;
- }
-}
-
-void OSBlitToWindow(OSWindowContext* ctx, const Drawable* drawable)
-{
- if(ctx)
- {
- int w = drawable->getWidth();
- int h = drawable->getHeight();
-
- int currWin = glutGetWindow();
- glutSetWindow((int)ctx->window);
-
- if(!ctx->tmp || ctx->tmpWidth != w || ctx->tmpHeight != h)
- {
- RI_DELETE_ARRAY(ctx->tmp);
- ctx->tmp = NULL;
- try
- {
- ctx->tmp = RI_NEW_ARRAY(unsigned int, w*h); //throws bad_alloc
- ctx->tmpWidth = w;
- ctx->tmpHeight = h;
- }
- catch(std::bad_alloc)
- {
- //do nothing
- }
- }
-
- if(ctx->tmp)
- {
- glViewport(0, 0, w, h);
- glDisable(GL_DEPTH_TEST);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- //NOTE: we assume here that the display is always in sRGB color space
- VGImageFormat f = VG_sABGR_8888_PRE;
- if(isBigEndian())
- f = VG_sRGBA_8888_PRE;
- static bool flip = false;
- if (!flip)
- {
- vgReadPixels(ctx->tmp, w*sizeof(unsigned int), f, 0, 0, w, h);
- //flip = true;
- }
- else
- {
- void* ptr = (void*)((RIuint8*)ctx->tmp + (w*sizeof(unsigned int)*(h-1)));
- vgReadPixels(ptr, -w*sizeof(unsigned int), f, 0, 0, w, h);
- flip = false;
- }
- glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, ctx->tmp);
- }
-
- glutSwapBuffers(); //shows the OpenGL frame buffer
- glutSetWindow(currWin); //restore the current window
- }
-}
-
-EGLDisplay OSGetDisplay(EGLNativeDisplayType display_id)
-{
- RI_UNREF(display_id);
- return (EGLDisplay)1; //support only a single display
-}
-
-} //namespace OpenVGRI