1d3f5f58ce
The application provides the window handle to which the OpenglRenderer should render to however only a sub-region of this window needs to be rendered. This change adds this functionality by creating a native child subwindow into which rendering will happen.
56 lines
2.2 KiB
C++
56 lines
2.2 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "NativeSubWindow.h"
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#include <stdio.h>
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LRESULT CALLBACK myWndProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)
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{
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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EGLNativeWindowType createSubWindow(FBNativeWindowType p_window,
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EGLNativeDisplayType* display_out,
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int x, int y,int width, int height){
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WNDCLASS wc;
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wc.style = CS_OWNDC |CS_HREDRAW |CS_VREDRAW; // redraw if size changes
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wc.lpfnWndProc = myWndProc; // points to window procedure
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wc.cbClsExtra = 0; // no extra class memory
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wc.cbWndExtra = sizeof(void*); // save extra window memory, to store VasWindow instance
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wc.hInstance = NULL; // handle to instance
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wc.hIcon = NULL; // predefined app. icon
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wc.hCursor = NULL;
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wc.hbrBackground = NULL; // no background brush
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wc.lpszMenuName = NULL; // name of menu resource
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wc.lpszClassName = "subWin"; // name of window class
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RegisterClass(&wc);
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printf("creating window %d %d %d %d\n",x,y,width,height);
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EGLNativeWindowType ret = CreateWindow("subWin",
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"sub",
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WS_CHILD,
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x,y,width,height,
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p_window,
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NULL,
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NULL,
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NULL);
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ShowWindow(ret,SW_SHOW);
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return ret;
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}
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void destroySubWindow(EGLNativeDisplayType dis,EGLNativeWindowType win){
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DestroyWindow(win);
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}
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