convolve.h

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// Copyright JRM Enterprises, Inc. 2006
// All rights reserved.
//
// This code is the intellectual property of JRM Enterprises, Inc.
// It may not be used or released as source or compiled binary form
// without the prior written consent of JRM Enterprises, Inc.
//
// Original Authors:    Ken George  

// used as pre-compiled header file
#include "seIncAll.h"



#include <Cg/cg.h>
#include <Cg/cgGL.h>
#include "glh/glh_linear.h"
#include "glh/glh_array.h"
#include "NVIFilter.h"

using namespace glh;
typedef vec<2, int> vec2i;
typedef glh::array2<float> Image2D;



void initConvolve(CGcontext cgContext, bool use_half, int components, bool use_looping);
void destroyConvolve();

float *evaluateFilter1D(NVIFilter2D &filter, int radius, int &nsamples, bool normalize);
Image2D *evaluateFilter2D(NVIFilter2D &filter, int radius_x, int radius_y, bool normalize);
Image2D *evaluateFilterAtlas2D(NVIFilter2D &filter, int nkernels, int max_radius, float min_r, float max_r);

GLuint createTextureFromImage2D(Image2D &img, GLenum target, GLenum internalFormat);
GLuint createTextureFromImage1D(float *data, int width, GLenum target, GLenum internalFormat);

CGprogram createPassThruProgram(CGcontext cgContext, bool use_tex2D, bool useFiltering, bool useLogScale, 
                                bool noiseEnable, int useColorConversion, bool use888Encoding, 
                        bool usePolaritySwitch, bool scanningSensorEnable, bool fullColorEnable, bool histogramEnable,
                                bool normalizeOutput, char *shaderFile);
void setFlagsPassThruProgram(CGprogram fprog, bool useFiltering, bool useLogScale, 
                                bool noiseEnable, int useColorConversion, bool use888Encoding, 
                        bool usePolaritySwitch, bool scanningSensorEnable, bool fullColorEnable, bool histogramEnable);
CGprogram createThresholdProgram(CGcontext cgContext, bool useTex2D, bool useFiltering, char *shaderFile);
CGprogram createHaloBlendProgram(CGcontext cgContext, bool useTex2D, bool useFiltering, char *shaderFile);

CGprogram createDopplerProgram(CGcontext cgContext, bool useTex2D, bool useFiltering, char *shaderFile);

CGprogram createMipConvolutionProgram(CGcontext cgContext, bool use_tex2D, int image_w, int image_h, bool useFiltering, char *shaderFile);

CGprogram createConvolveProgram(CGcontext cgContext, int nsamples, vec4f *offsetsWeights, bool use_tex2D, bool useFiltering, char *shaderFile);
CGprogram createConvolutionProgramSeparable(CGcontext cgContext, float *weights, int nsamples, int radius, bool use_filtering, bool vertical, bool use_tex2D, int image_w, int image_h, char *shaderFile);
CGprogram createConvolutionProgram2D(CGcontext cgContext, NVIFilter2D &filter, int radius_x, int radius_y, bool useFiltering, bool use_tex2D, int image_w, int image_h, char *shaderFile);

void setSeparableConvolutionParameters(CGprogram &prog, float *weights, int nsamples, int radius, bool useFiltering, bool vertical, bool use_tex2D, int image_w, int image_h);
void setConvolutionParameters2D(CGprogram &prog, NVIFilter2D &filter, int radius_x, int radius_y, bool useFiltering, bool use_tex2D, int image_w, int image_h);
void setConvolutionParametersKernels2D(CGprogram &prog, float *kernels, bool useFiltering, bool use_tex2D, int kernelWidth, int kernelHeight, int image_w, int image_h);
void setUpSampleConvolutionParameters(CGprogram &prog, bool useTex2D, int imageW, int imageH);
void setHaloConvolveTexSeparableParameters(CGprogram &prog, bool use_tex2D, int img_width, int img_height, int kernelTexSizeX, int kernelTexSizeY, int *kernelSizes);

CGprogram createConvolveProgramTex(CGcontext cgContext, int kernel_width, int kernel_height, int xoffset, int yoffset, bool use_tex2D, int img_width, int img_height, char *shaderFile);
CGprogram createConvolveProgramTexSeparable(CGcontext cgContext, int kernel_width, int offset, bool use_tex2D, bool vertical, int img_width, int img_height, char *shaderFile);
CGprogram createConvolveProgramMultiTex(CGcontext cgContext, bool use_tex2D, int img_width, int img_height, int kernelTexSize, char *shaderFile);
CGprogram createConvolveProgramMultiTexSeparable(CGcontext cgContext, bool use_tex2D, int img_width, int img_height, int kernelTexSize, char *shaderFile);
CGprogram createConvolveProgramMulti2DTex(CGcontext cgContext, bool use_tex2D, int img_width, int img_height, int kernelTexSize, char *shaderFile);
CGprogram createHaloConvolveProgramTexSeparable(CGcontext cgContext, bool use_tex2D, int img_width, int img_height, int kernelTexSizeX, int kernelTexSizeY, int *kernelSizes, char *shaderFile);
CGprogram createUpSampleProgram(CGcontext cgContext, bool useTex2D, int imageW, int imageH, char *shaderFile);

void updateConvolveProgramMultiTexSeparable(CGprogram fprog, int offset, bool use_tex2D, bool vertical, int img_width, int img_height);

void setDepthScaleBias(float scale, float bias);
CGprogram createConvolveProgramTexSteerable(int kernel_width, int kernel_height, int xoffset, int yoffset, int nkernels, bool use_tex2D, int img_width, int img_height, char *shaderFile);
CGprogram createMotionBlurProgram(CGcontext cgContext, double weight, char *shaderFile);
CGprogram createStripModeProgram(CGcontext cgContext, char *shaderFile);
CGprogram createDistortionMapProgram(CGcontext cgContext, float distortionFactor, char *shaderFile);

void updateBlurParameters(CGprogram &prog, int nsamples, vec4f *offsetsWeights, int numOffsets, vec2f *scales);