00001 /* 00002 Copyright (c) 2010, The Barbarian Group 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that 00006 the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and 00009 the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 00011 the following disclaimer in the documentation and/or other materials provided with the distribution. 00012 00013 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 00014 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00015 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 00016 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00017 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00018 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00019 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00020 POSSIBILITY OF SUCH DAMAGE. 00021 */ 00022 00023 #pragma once 00024 00025 #include "cinder/Cinder.h" 00026 #include "cinder/gl/gl.h" 00027 #include "cinder/Exception.h" 00028 #include "cinder/Surface.h" 00029 #include "cinder/Camera.h" 00030 00031 namespace cinder { namespace gl { 00032 00033 class TileRender { 00034 public: 00035 TileRender( int32_t imageWidth, int32_t imageHeight, int32_t tileWidth = 512, int32_t tileHeight = 512 ); 00036 00037 bool nextTile(); 00038 00039 int32_t getImageWidth() const { return mImageWidth; } 00040 int32_t getImageHeight() const { return mImageHeight; } 00041 float getImageAspectRatio() const { return mImageWidth / (float)mImageHeight; } 00042 Area getCurrentTileArea() const { return mCurrentArea; } 00043 Surface getSurface() const { return mSurface; } 00044 00045 void setMatricesWindow( int32_t windowWidth, int32_t windowHeight ); 00046 void setMatrices( const Camera &camera ); 00047 00048 void frustum( float left, float right, float bottom, float top, float nearPlane, float farPlane ); 00049 void ortho( float left, float right, float bottom, float top, float nearPlane, float farPlane ); 00050 00051 protected: 00052 void updateFrustum(); 00053 00054 int32_t mImageWidth, mImageHeight; 00055 int32_t mTileWidth, mTileHeight; 00056 int32_t mNumTilesX, mNumTilesY; 00057 00058 int32_t mCurrentTile; 00059 Area mCurrentArea; 00060 Rectf mCurrentFrustumCoords; 00061 float mCurrentFrustumNear, mCurrentFrustumFar; 00062 bool mCurrentFrustumPersp; 00063 00064 Area mSavedViewport; 00065 Surface mSurface; 00066 }; 00067 00068 } } // namespace cinder::gl