--- a/hostsupport/hostopenvg/src/src/win32/riEGLOS.cpp Wed Oct 06 17:59:01 2010 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,382 +0,0 @@
-/*------------------------------------------------------------------------
- *
- * EGL 1.3
- * -------
- *
- * Copyright (c) 2007 The Khronos Group Inc.
- * Portions 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 Simple implementation of EGL 1.3
- * \note caveats:
- - always renders into the backbuffer and blits it to window (no single buffered rendering)
- - no native Windows or Mac OS X pixmap support
- - no power management events
- - no support for swap interval
- * \todo what happens in egl functions when eglTerminate has been called but the context and surface are still in use?
- * \todo OSDeinitMutex should be called in case getEGL fails.
- * \todo clarify getThread and getCurrentThread distinction.
- *//*-------------------------------------------------------------------*/
-
-#include "EGL/egl.h"
-#include "openvg.h"
-#include "riArray.h"
-#include "riMath.h"
-#include "riContext.h"
-#include "riImage.h"
-
-namespace OpenVGRI
-{
-
-#include <windows.h>
-
-void* OSGetCurrentThreadID(void)
-{
- return (void*)GetCurrentThreadId(); //TODO this is not safe
-}
-
-static HANDLE mutex = NULL;
-static int mutexRefCount = 0;
-//acquired mutex cannot be deinited.
-void OSDeinitMutex(void)
-{
- RI_ASSERT(mutex);
- RI_ASSERT(mutexRefCount == 0);
- BOOL ret = CloseHandle(mutex);
- RI_ASSERT(ret);
- RI_UNREF(ret);
-}
-void OSAcquireMutex(void)
-{
- if(!mutex)
- {
- mutex = CreateMutex(NULL, FALSE, NULL); //initially not locked
- mutexRefCount = 0;
- }
- RI_ASSERT(mutex);
- DWORD ret = WaitForSingleObject(mutex, INFINITE);
- RI_ASSERT(ret != WAIT_FAILED);
- RI_UNREF(ret);
- mutexRefCount++;
-}
-void OSReleaseMutex(void)
-{
- RI_ASSERT(mutex);
- mutexRefCount--;
- RI_ASSERT(mutexRefCount >= 0);
- BOOL ret = ReleaseMutex(mutex);
- RI_ASSERT(ret);
- RI_UNREF(ret);
-}
-
-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;
-}
-
-
-#ifdef RI_USE_GLUT
-# include <GL/gl.h>
-# define GLUT_DISABLE_ATEXIT_HACK
-# include "glut.h"
-
-struct OSWindowContext
-{
- int window;
- unsigned int* tmp;
- int tmpWidth;
- int tmpHeight;
-};
-
-void* 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(void* context)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- RI_DELETE_ARRAY(ctx->tmp);
- RI_DELETE(ctx);
- }
-}
-
-bool OSIsWindow(const void* context)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- //TODO implement
- return true;
- }
- return false;
-}
-
-void OSGetWindowSize(const void* context, int& width, int& height)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- int currWin = glutGetWindow();
- glutSetWindow(ctx->window);
- width = glutGet(GLUT_WINDOW_WIDTH);
- height = glutGet(GLUT_WINDOW_HEIGHT);
- glutSetWindow(currWin);
- }
- else
- {
- width = 0;
- height = 0;
- }
-}
-
-void OSBlitToWindow(void* context, const Drawable* drawable)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- int w = drawable->getWidth();
- int h = drawable->getHeight();
-
- int currWin = glutGetWindow();
- glutSetWindow(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_sXBGR_8888;
- if(isBigEndian())
- f = VG_sRGBX_8888;
- vgReadPixels(ctx->tmp, w*sizeof(unsigned int), f, 0, 0, w, h);
- 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)
-{
- return (EGLDisplay)display_id; //just casting to (EGLDisplay) should be enough to make a unique identifier out of this
-}
-
-#else
-//Windows native
-#ifndef _WINDOWS_
-# define _WIN32_WINNT 0x0400
-# define WIN32_LEAN_AND_MEAN
-# include <windows.h>
-#endif
-
-struct OSWindowContext
-{
- HWND window;
- HDC bufDC;
- HBITMAP bufDIB;
- unsigned int* tmp;
- int tmpWidth;
- int tmpHeight;
-};
-
-OSWindowContext* OSCreateWindowContext(EGLNativeWindowType window)
-{
- OSWindowContext* ctx = NULL;
- try
- {
- ctx = RI_NEW(OSWindowContext, ());
- }
- catch(std::bad_alloc)
- {
- return NULL;
- }
-
- ctx->window = (HWND)window;
- HDC winDC = GetDC(ctx->window);
- ctx->bufDC = CreateCompatibleDC(winDC);
- ReleaseDC(ctx->window, winDC);
- if(!ctx->bufDC)
- {
- RI_DELETE(ctx);
- return NULL;
- }
-
- ctx->bufDIB = NULL;
- ctx->tmp = NULL;
- ctx->tmpWidth = 0;
- ctx->tmpHeight = 0;
- return ctx;
-}
-
-void OSDestroyWindowContext(OSWindowContext* context)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- if(ctx->bufDC)
- {
- SelectObject(ctx->bufDC, NULL);
- DeleteDC(ctx->bufDC);
- }
- if(ctx->bufDIB)
- DeleteObject(ctx->bufDIB);
- RI_DELETE(ctx);
- }
-}
-
-bool OSIsWindow(const OSWindowContext* context)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- if(IsWindow(ctx->window))
- return true;
- }
- return false;
-}
-
-void OSGetWindowSize(const OSWindowContext* context, int& width, int& height)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- RECT rect;
- GetClientRect(ctx->window, &rect);
- width = rect.right - rect.left;
- height = rect.bottom - rect.top;
- }
- else
- {
- width = 0;
- height = 0;
- }
-}
-
-void OSBlitToWindow(OSWindowContext* context, const Drawable* drawable)
-{
- OSWindowContext* ctx = (OSWindowContext*)context;
- if(ctx)
- {
- int w = drawable->getWidth();
- int h = drawable->getHeight();
-
- if(!ctx->tmp || !ctx->bufDIB || ctx->tmpWidth != w || ctx->tmpHeight != h)
- {
- if(ctx->bufDIB)
- DeleteObject(ctx->bufDIB);
- ctx->tmp = NULL;
- ctx->bufDIB = NULL;
-
- ctx->tmpWidth = w;
- ctx->tmpHeight = h;
-
- struct
- {
- BITMAPINFOHEADER header;
- DWORD rMask;
- DWORD gMask;
- DWORD bMask;
- } bmi;
- bmi.header.biSize = sizeof(BITMAPINFOHEADER);
- bmi.header.biWidth = w;
- bmi.header.biHeight = h;
- bmi.header.biPlanes = 1;
- bmi.header.biBitCount = (WORD)32;
- bmi.header.biCompression = BI_BITFIELDS;
- bmi.rMask = 0x000000ff;
- bmi.gMask = 0x0000ff00;
- bmi.bMask = 0x00ff0000;
- ctx->bufDIB = CreateDIBSection(ctx->bufDC, (BITMAPINFO*)&bmi, DIB_RGB_COLORS, (void**)&ctx->tmp, NULL, 0);
- if(!ctx->bufDIB)
- {
- ctx->tmp = NULL;
- return;
- }
- }
-
- if(ctx->tmp)
- {
- //NOTE: we assume here that the display is always in sRGB color space
- GdiFlush();
- VGImageFormat f = VG_sABGR_8888_PRE;
- if(isBigEndian())
- f = VG_sRGBA_8888_PRE;
- vgReadPixels(ctx->tmp, w*sizeof(unsigned int), f, 0, 0, w, h);
-
- SelectObject(ctx->bufDC, ctx->bufDIB);
- HDC winDC = GetDC(ctx->window);
- BitBlt(winDC, 0, 0, w, h, ctx->bufDC, 0, 0, SRCCOPY);
- ReleaseDC(ctx->window, winDC);
- SelectObject(ctx->bufDC, NULL);
- }
- }
-}
-
-EGLDisplay OSGetDisplay(EGLNativeDisplayType display_id)
-{
- RI_UNREF(display_id);
- return (EGLDisplay)1; //support only a single display
-}
-
-#endif
-
-} //namespace OpenVGRI