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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 setMatricesWindow( const Vec2i &windowSize ) { setMatricesWindow( windowSize.x, windowSize.y ); }
00047 void setMatricesWindowPersp( int screenWidth, int screenHeight, float fovDegrees = 60.0f, float nearPlane = 1.0f, float farPlane = 1000.0f );
00048 void setMatricesWindowPersp( const Vec2i &windowSize, float fovDegrees = 60.0f, float nearPlane = 1.0f, float farPlane = 1000.0f )
00049 { setMatricesWindowPersp( windowSize.x, windowSize.y, fovDegrees, nearPlane, farPlane ); }
00050 void setMatrices( const Camera &camera );
00051
00052 void frustum( float left, float right, float bottom, float top, float nearPlane, float farPlane );
00053 void ortho( float left, float right, float bottom, float top, float nearPlane, float farPlane );
00054
00055 protected:
00056 void updateFrustum();
00057
00058 int32_t mImageWidth, mImageHeight;
00059 int32_t mTileWidth, mTileHeight;
00060 int32_t mNumTilesX, mNumTilesY;
00061
00062 int32_t mCurrentTile;
00063 Area mCurrentArea;
00064 Rectf mCurrentFrustumCoords;
00065 float mCurrentFrustumNear, mCurrentFrustumFar;
00066 bool mCurrentFrustumPersp;
00067
00068 Area mSavedViewport;
00069 Surface mSurface;
00070 };
00071
00072 } }