1133 lines
26 KiB
C++
1133 lines
26 KiB
C++
// ==============================================================
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// This file is part of Glest Shared Library (www.glest.org)
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//
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// Copyright (C) 2001-2008 Martio Figueroa
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//
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// You can redistribute this code and/or modify it under
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// the terms of the GNU General Public License as published
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// by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version
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// ==============================================================
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#include "math_wrapper.h"
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#include "pixmap.h"
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#include <stdexcept>
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#include <cstdio>
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#include <cassert>
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#include "util.h"
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#include "math_util.h"
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#include "randomgen.h"
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#include "FileReader.h"
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#include "ImageReaders.h"
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#include <png.h>
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#include <setjmp.h>
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#include "leak_dumper.h"
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using namespace Shared::Util;
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using namespace std;
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namespace Shared{ namespace Graphics{
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using namespace Util;
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// =====================================================
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// file structs
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// =====================================================
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#pragma pack(push, 1)
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struct BitmapFileHeader{
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uint8 type1;
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uint8 type2;
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uint32 size;
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uint16 reserved1;
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uint16 reserved2;
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uint32 offsetBits;
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};
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struct BitmapInfoHeader{
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uint32 size;
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int32 width;
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int32 height;
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uint16 planes;
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uint16 bitCount;
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uint32 compression;
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uint32 sizeImage;
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int32 xPelsPerMeter;
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int32 yPelsPerMeter;
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uint32 clrUsed;
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uint32 clrImportant;
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};
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struct TargaFileHeader{
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int8 idLength;
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int8 colourMapType;
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int8 dataTypeCode;
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int16 colourMapOrigin;
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int16 colourMapLength;
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int8 colourMapDepth;
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int16 xOrigin;
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int16 yOrigin;
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int16 width;
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int16 height;
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int8 bitsPerPixel;
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int8 imageDescriptor;
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};
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#pragma pack(pop)
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const int tgaUncompressedRgb= 2;
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const int tgaUncompressedBw= 3;
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// =====================================================
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// class PixmapIoTga
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// =====================================================
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PixmapIoTga::PixmapIoTga() {
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file= NULL;
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}
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PixmapIoTga::~PixmapIoTga() {
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if(file != NULL) {
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fclose(file);
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file=NULL;
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}
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}
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void PixmapIoTga::openRead(const string &path) {
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file= fopen(path.c_str(),"rb");
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if (file == NULL) {
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throw runtime_error("Can't open TGA file: "+ path);
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}
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//read header
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TargaFileHeader fileHeader;
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size_t readBytes = fread(&fileHeader, sizeof(TargaFileHeader), 1, file);
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//check that we can load this tga file
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if(fileHeader.idLength != 0) {
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throw runtime_error(path + ": id field is not 0");
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}
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if(fileHeader.dataTypeCode != tgaUncompressedRgb && fileHeader.dataTypeCode != tgaUncompressedBw) {
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throw runtime_error(path + ": only uncompressed BW and RGB targa images are supported");
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}
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//check bits per pixel
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if(fileHeader.bitsPerPixel != 8 && fileHeader.bitsPerPixel != 24 && fileHeader.bitsPerPixel !=32) {
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throw runtime_error(path + ": only 8, 24 and 32 bit targa images are supported");
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}
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h= fileHeader.height;
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w= fileHeader.width;
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components= fileHeader.bitsPerPixel / 8;
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}
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void PixmapIoTga::read(uint8 *pixels) {
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read(pixels, components);
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}
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void PixmapIoTga::read(uint8 *pixels, int components) {
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for(int i=0; i<h*w*components; i+=components) {
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uint8 r=0, g=0, b=0, a=0, l=0;
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if(this->components == 1) {
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size_t readBytes = fread(&l, 1, 1, file);
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r= l;
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g= l;
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b= l;
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a= 255;
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}
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else {
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size_t readBytes = fread(&b, 1, 1, file);
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readBytes = fread(&g, 1, 1, file);
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readBytes = fread(&r, 1, 1, file);
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if(this->components == 4) {
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readBytes = fread(&a, 1, 1, file);
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}
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else {
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a= 255;
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}
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l= (r+g+b)/3;
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}
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switch(components) {
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case 1:
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pixels[i]= l;
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break;
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case 3:
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pixels[i]= r;
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pixels[i+1]= g;
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pixels[i+2]= b;
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break;
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case 4:
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pixels[i]= r;
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pixels[i+1]= g;
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pixels[i+2]= b;
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pixels[i+3]= a;
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break;
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}
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}
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}
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void PixmapIoTga::openWrite(const string &path, int w, int h, int components) {
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this->w= w;
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this->h= h;
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this->components= components;
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file= fopen(path.c_str(),"wb");
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if (file == NULL) {
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throw runtime_error("Can't open TGA file: "+ path);
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}
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TargaFileHeader fileHeader;
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memset(&fileHeader, 0, sizeof(TargaFileHeader));
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fileHeader.dataTypeCode= components==1? tgaUncompressedBw: tgaUncompressedRgb;
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fileHeader.bitsPerPixel= components*8;
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fileHeader.width= w;
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fileHeader.height= h;
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fileHeader.imageDescriptor= components==4? 8: 0;
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fwrite(&fileHeader, sizeof(TargaFileHeader), 1, file);
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}
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void PixmapIoTga::write(uint8 *pixels) {
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if(components == 1) {
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fwrite(pixels, h*w, 1, file);
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}
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else {
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for(int i=0; i<h*w*components; i+=components) {
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fwrite(&pixels[i+2], 1, 1, file);
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fwrite(&pixels[i+1], 1, 1, file);
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fwrite(&pixels[i], 1, 1, file);
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if(components==4){
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fwrite(&pixels[i+3], 1, 1, file);
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}
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}
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}
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}
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// =====================================================
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// class PixmapIoBmp
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// =====================================================
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PixmapIoBmp::PixmapIoBmp() {
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file= NULL;
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}
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PixmapIoBmp::~PixmapIoBmp() {
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if(file!=NULL){
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fclose(file);
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file=NULL;
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}
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}
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void PixmapIoBmp::openRead(const string &path){
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file= fopen(path.c_str(),"rb");
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if (file==NULL){
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throw runtime_error("Can't open BMP file: "+ path);
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}
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//read file header
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BitmapFileHeader fileHeader;
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size_t readBytes = fread(&fileHeader, sizeof(BitmapFileHeader), 1, file);
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if(fileHeader.type1!='B' || fileHeader.type2!='M'){
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throw runtime_error(path +" is not a bitmap");
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}
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//read info header
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BitmapInfoHeader infoHeader;
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readBytes = fread(&infoHeader, sizeof(BitmapInfoHeader), 1, file);
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if(infoHeader.bitCount!=24){
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throw runtime_error(path+" is not a 24 bit bitmap");
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}
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h= infoHeader.height;
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w= infoHeader.width;
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components= 3;
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}
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void PixmapIoBmp::read(uint8 *pixels) {
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read(pixels, 3);
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}
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void PixmapIoBmp::read(uint8 *pixels, int components) {
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for(int i=0; i<h*w*components; i+=components) {
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uint8 r, g, b;
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size_t readBytes = fread(&b, 1, 1, file);
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readBytes = fread(&g, 1, 1, file);
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readBytes = fread(&r, 1, 1, file);
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switch(components){
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case 1:
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pixels[i]= (r+g+b)/3;
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break;
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case 3:
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pixels[i]= r;
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pixels[i+1]= g;
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pixels[i+2]= b;
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break;
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case 4:
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pixels[i]= r;
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pixels[i+1]= g;
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pixels[i+2]= b;
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pixels[i+3]= 255;
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break;
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}
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}
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}
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void PixmapIoBmp::openWrite(const string &path, int w, int h, int components) {
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this->w= w;
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this->h= h;
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this->components= components;
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file= fopen(path.c_str(),"wb");
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if (file == NULL) {
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throw runtime_error("Can't open BMP file for writing: "+ path);
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}
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BitmapFileHeader fileHeader;
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fileHeader.type1='B';
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fileHeader.type2='M';
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fileHeader.offsetBits=sizeof(BitmapFileHeader)+sizeof(BitmapInfoHeader);
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fileHeader.size=sizeof(BitmapFileHeader)+sizeof(BitmapInfoHeader)+3*h*w;
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fwrite(&fileHeader, sizeof(BitmapFileHeader), 1, file);
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//info header
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BitmapInfoHeader infoHeader;
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infoHeader.bitCount=24;
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infoHeader.clrImportant=0;
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infoHeader.clrUsed=0;
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infoHeader.compression=0;
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infoHeader.height= h;
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infoHeader.planes=1;
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infoHeader.size=sizeof(BitmapInfoHeader);
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infoHeader.sizeImage=0;
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infoHeader.width= w;
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infoHeader.xPelsPerMeter= 0;
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infoHeader.yPelsPerMeter= 0;
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fwrite(&infoHeader, sizeof(BitmapInfoHeader), 1, file);
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}
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void PixmapIoBmp::write(uint8 *pixels) {
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for (int i=0; i<h*w*components; i+=components){
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fwrite(&pixels[i+2], 1, 1, file);
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fwrite(&pixels[i+1], 1, 1, file);
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fwrite(&pixels[i], 1, 1, file);
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}
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}
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// =====================================================
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// class PixmapIoPng
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// =====================================================
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PixmapIoPng::PixmapIoPng() {
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file= NULL;
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}
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PixmapIoPng::~PixmapIoPng() {
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if(file!=NULL){
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fclose(file);
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file=NULL;
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}
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}
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void PixmapIoPng::openRead(const string &path) {
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throw runtime_error("PixmapIoPng::openRead not implemented!");
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/*
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file= fopen(path.c_str(),"rb");
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if (file==NULL){
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throw runtime_error("Can't open BMP file: "+ path);
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}
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//read file header
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BitmapFileHeader fileHeader;
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size_t readBytes = fread(&fileHeader, sizeof(BitmapFileHeader), 1, file);
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if(fileHeader.type1!='B' || fileHeader.type2!='M'){
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throw runtime_error(path +" is not a bitmap");
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}
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//read info header
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BitmapInfoHeader infoHeader;
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readBytes = fread(&infoHeader, sizeof(BitmapInfoHeader), 1, file);
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if(infoHeader.bitCount!=24){
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throw runtime_error(path+" is not a 24 bit bitmap");
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}
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h= infoHeader.height;
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w= infoHeader.width;
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components= 3;
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*/
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}
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void PixmapIoPng::read(uint8 *pixels) {
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throw runtime_error("PixmapIoPng::read not implemented!");
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//read(pixels, 3);
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}
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void PixmapIoPng::read(uint8 *pixels, int components) {
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throw runtime_error("PixmapIoPng::read #2 not implemented!");
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/*
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for(int i=0; i<h*w*components; i+=components) {
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uint8 r, g, b;
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size_t readBytes = fread(&b, 1, 1, file);
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readBytes = fread(&g, 1, 1, file);
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readBytes = fread(&r, 1, 1, file);
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switch(components){
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case 1:
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pixels[i]= (r+g+b)/3;
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break;
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case 3:
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pixels[i]= r;
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pixels[i+1]= g;
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pixels[i+2]= b;
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break;
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case 4:
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pixels[i]= r;
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pixels[i+1]= g;
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pixels[i+2]= b;
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pixels[i+3]= 255;
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break;
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}
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}
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*/
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}
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void PixmapIoPng::openWrite(const string &path, int w, int h, int components) {
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this->path = path;
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this->w= w;
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this->h= h;
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this->components= components;
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file= fopen(path.c_str(),"wb");
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if (file == NULL) {
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throw runtime_error("Can't open PNG file for writing: "+ path);
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}
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}
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void PixmapIoPng::write(uint8 *pixels) {
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// Allocate write & info structures
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png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
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if(!png_ptr) {
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fclose(file);
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throw runtime_error("OpenGlDevice::saveImageAsPNG() - out of memory creating write structure");
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}
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png_infop info_ptr = png_create_info_struct(png_ptr);
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if(!info_ptr) {
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png_destroy_write_struct(&png_ptr,
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(png_infopp)NULL);
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fclose(file);
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throw runtime_error("OpenGlDevice::saveImageAsPNG() - out of memery creating info structure");
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}
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// setjmp() must be called in every function that calls a PNG-writing
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// libpng function, unless an alternate error handler was installed--
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// but compatible error handlers must either use longjmp() themselves
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// (as in this program) or exit immediately, so here we go: */
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if(setjmp(png_jmpbuf(png_ptr))) {
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png_destroy_write_struct(&png_ptr, &info_ptr);
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fclose(file);
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throw runtime_error("OpenGlDevice::saveImageAsPNG() - setjmp problem");
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}
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// make sure outfile is (re)opened in BINARY mode
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png_init_io(png_ptr, file);
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// set the compression levels--in general, always want to leave filtering
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// turned on (except for palette images) and allow all of the filters,
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// which is the default; want 32K zlib window, unless entire image buffer
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// is 16K or smaller (unknown here)--also the default; usually want max
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// compression (NOT the default); and remaining compression flags should
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// be left alone
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//png_set_compression_level(png_ptr, Z_BEST_COMPRESSION);
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png_set_compression_level(png_ptr, Z_DEFAULT_COMPRESSION);
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//
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// this is default for no filtering; Z_FILTERED is default otherwise:
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// png_set_compression_strategy(png_ptr, Z_DEFAULT_STRATEGY);
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// these are all defaults:
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// png_set_compression_mem_level(png_ptr, 8);
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// png_set_compression_window_bits(png_ptr, 15);
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// png_set_compression_method(png_ptr, 8);
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// Set some options: color_type, interlace_type
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int color_type=0, interlace_type=0, numChannels=0;
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// color_type = PNG_COLOR_TYPE_GRAY;
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// color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
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color_type = PNG_COLOR_TYPE_RGB;
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numChannels = 3;
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// color_type = PNG_COLOR_TYPE_RGB_ALPHA;
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interlace_type = PNG_INTERLACE_NONE;
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// interlace_type = PNG_INTERLACE_ADAM7;
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int bit_depth = 8;
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png_set_IHDR(png_ptr, info_ptr, this->w, this->h, bit_depth,
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color_type,
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interlace_type,
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PNG_COMPRESSION_TYPE_BASE,
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PNG_FILTER_TYPE_BASE);
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// Optional gamma chunk is strongly suggested if you have any guess
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// as to the correct gamma of the image. (we don't have a guess)
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//
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// png_set_gAMA(png_ptr, info_ptr, image_gamma);
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// write all chunks up to (but not including) first IDAT
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png_write_info(png_ptr, info_ptr);
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// set up the row pointers for the image so we can use png_write_image
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png_bytep* row_pointers = new png_bytep[this->h];
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if (row_pointers == 0) {
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png_destroy_write_struct(&png_ptr, &info_ptr);
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fclose(file);
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throw runtime_error("OpenGlDevice::failed to allocate memory for row pointers");
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}
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unsigned int row_stride = this->w * numChannels;
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unsigned char *rowptr = (unsigned char*) pixels;
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for (int row = this->h-1; row >=0 ; row--) {
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row_pointers[row] = rowptr;
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rowptr += row_stride;
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}
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// now we just write the whole image; libpng takes care of interlacing for us
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png_write_image(png_ptr, row_pointers);
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// since that's it, we also close out the end of the PNG file now--if we
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// had any text or time info to write after the IDATs, second argument
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// would be info_ptr, but we optimize slightly by sending NULL pointer: */
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png_write_end(png_ptr, info_ptr);
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//
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// clean up after the write
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// free any memory allocated & close the file
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//
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png_destroy_write_struct(&png_ptr, &info_ptr);
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delete [] row_pointers;
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//fclose(file);
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}
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// =====================================================
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// class Pixmap1D
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// =====================================================
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// ===================== PUBLIC ========================
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Pixmap1D::Pixmap1D(){
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w= -1;
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components= -1;
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pixels= NULL;
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}
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Pixmap1D::Pixmap1D(int components){
|
|
init(components);
|
|
}
|
|
|
|
Pixmap1D::Pixmap1D(int w, int components){
|
|
init(w, components);
|
|
}
|
|
|
|
void Pixmap1D::init(int components){
|
|
this->w= -1;
|
|
this->components= components;
|
|
pixels= NULL;
|
|
}
|
|
|
|
void Pixmap1D::init(int w, int components){
|
|
this->w= w;
|
|
this->components= components;
|
|
pixels= new uint8[(std::size_t)getPixelByteCount()];
|
|
}
|
|
|
|
uint64 Pixmap1D::getPixelByteCount() const {
|
|
return (w * components);
|
|
}
|
|
|
|
void Pixmap1D::deletePixels() {
|
|
delete [] pixels;
|
|
pixels = NULL;
|
|
}
|
|
|
|
Pixmap1D::~Pixmap1D(){
|
|
deletePixels();
|
|
}
|
|
|
|
void Pixmap1D::load(const string &path) {
|
|
string extension= path.substr(path.find_last_of('.')+1);
|
|
if(extension=="bmp") {
|
|
loadBmp(path);
|
|
}
|
|
else if(extension=="tga") {
|
|
loadTga(path);
|
|
}
|
|
else {
|
|
throw runtime_error("Unknown pixmap extension: " + extension);
|
|
}
|
|
this->path = path;
|
|
}
|
|
|
|
void Pixmap1D::loadBmp(const string &path) {
|
|
this->path = path;
|
|
|
|
PixmapIoBmp plb;
|
|
plb.openRead(path);
|
|
|
|
//init
|
|
if(plb.getH()==1) {
|
|
w= plb.getW();
|
|
}
|
|
else if(plb.getW()==1) {
|
|
w= plb.getH();
|
|
}
|
|
else {
|
|
throw runtime_error("One of the texture dimensions must be 1");
|
|
}
|
|
|
|
if(components == -1) {
|
|
components= 3;
|
|
}
|
|
if(pixels == NULL) {
|
|
pixels= new uint8[(std::size_t)getPixelByteCount()];
|
|
}
|
|
|
|
//data
|
|
plb.read(pixels, components);
|
|
}
|
|
|
|
void Pixmap1D::loadTga(const string &path) {
|
|
this->path = path;
|
|
|
|
PixmapIoTga plt;
|
|
plt.openRead(path);
|
|
|
|
//init
|
|
if(plt.getH()==1) {
|
|
w= plt.getW();
|
|
}
|
|
else if(plt.getW()==1) {
|
|
w= plt.getH();
|
|
}
|
|
else {
|
|
throw runtime_error("One of the texture dimensions must be 1");
|
|
}
|
|
|
|
int fileComponents= plt.getComponents();
|
|
|
|
if(components == -1) {
|
|
components= fileComponents;
|
|
}
|
|
if(pixels == NULL) {
|
|
pixels= new uint8[(std::size_t)getPixelByteCount()];
|
|
}
|
|
|
|
//read data
|
|
plt.read(pixels, components);
|
|
}
|
|
|
|
// =====================================================
|
|
// class Pixmap2D
|
|
// =====================================================
|
|
|
|
// ===================== PUBLIC ========================
|
|
|
|
Pixmap2D::Pixmap2D() {
|
|
h= -1;
|
|
w= -1;
|
|
components= -1;
|
|
pixels= NULL;
|
|
}
|
|
|
|
Pixmap2D::Pixmap2D(int components) {
|
|
init(components);
|
|
}
|
|
|
|
Pixmap2D::Pixmap2D(int w, int h, int components) {
|
|
init(w, h, components);
|
|
}
|
|
|
|
void Pixmap2D::init(int components) {
|
|
this->w= -1;
|
|
this->h= -1;
|
|
this->components= components;
|
|
pixels= NULL;
|
|
}
|
|
|
|
void Pixmap2D::init(int w, int h, int components) {
|
|
this->w= w;
|
|
this->h= h;
|
|
this->components= components;
|
|
pixels= new uint8[(std::size_t)getPixelByteCount()];
|
|
}
|
|
|
|
uint64 Pixmap2D::getPixelByteCount() const {
|
|
return (h * w * components);
|
|
}
|
|
|
|
void Pixmap2D::deletePixels() {
|
|
delete [] pixels;
|
|
pixels = NULL;
|
|
}
|
|
|
|
Pixmap2D::~Pixmap2D() {
|
|
deletePixels();
|
|
}
|
|
|
|
Pixmap2D* Pixmap2D::loadPath(const string& path) {
|
|
printf("Loading Pixmap2D [%s]\n",path.c_str());
|
|
|
|
Pixmap2D *pixmap = FileReader<Pixmap2D>::readPath(path);
|
|
if(pixmap != NULL) {
|
|
pixmap->path = path;
|
|
}
|
|
return pixmap;
|
|
}
|
|
|
|
void Pixmap2D::load(const string &path) {
|
|
//printf("Loading Pixmap2D [%s]\n",path.c_str());
|
|
|
|
FileReader<Pixmap2D>::readPath(path,this);
|
|
this->path = path;
|
|
}
|
|
|
|
void Pixmap2D::save(const string &path) {
|
|
string extension= path.substr(path.find_last_of('.')+1);
|
|
if(toLower(extension) == "bmp") {
|
|
saveBmp(path);
|
|
}
|
|
else if(toLower(extension) == "tga") {
|
|
saveTga(path);
|
|
}
|
|
else if(toLower(extension) == "png") {
|
|
savePng(path);
|
|
}
|
|
else {
|
|
throw runtime_error("Unknown pixmap extension: " + extension);
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::saveBmp(const string &path) {
|
|
PixmapIoBmp psb;
|
|
psb.openWrite(path, w, h, components);
|
|
psb.write(pixels);
|
|
}
|
|
|
|
void Pixmap2D::saveTga(const string &path) {
|
|
PixmapIoTga pst;
|
|
pst.openWrite(path, w, h, components);
|
|
pst.write(pixels);
|
|
}
|
|
void Pixmap2D::savePng(const string &path) {
|
|
PixmapIoPng pst;
|
|
pst.openWrite(path, w, h, components);
|
|
pst.write(pixels);
|
|
|
|
}
|
|
void Pixmap2D::getPixel(int x, int y, uint8 *value) const {
|
|
for(int i=0; i<components; ++i){
|
|
value[i]= pixels[(w*y+x)*components+i];
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::getPixel(int x, int y, float32 *value) const {
|
|
for(int i=0; i<components; ++i) {
|
|
value[i]= pixels[(w*y+x)*components+i]/255.f;
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::getComponent(int x, int y, int component, uint8 &value) const {
|
|
value= pixels[(w*y+x)*components+component];
|
|
}
|
|
|
|
void Pixmap2D::getComponent(int x, int y, int component, float32 &value) const {
|
|
value= pixels[(w*y+x)*components+component]/255.f;
|
|
}
|
|
|
|
//vector get
|
|
Vec4f Pixmap2D::getPixel4f(int x, int y) const {
|
|
Vec4f v(0.f);
|
|
for(int i=0; i<components && i<4; ++i){
|
|
v.ptr()[i]= pixels[(w*y+x)*components+i]/255.f;
|
|
}
|
|
return v;
|
|
}
|
|
|
|
Vec3f Pixmap2D::getPixel3f(int x, int y) const {
|
|
Vec3f v(0.f);
|
|
for(int i=0; i<components && i<3; ++i){
|
|
v.ptr()[i]= pixels[(w*y+x)*components+i]/255.f;
|
|
}
|
|
return v;
|
|
}
|
|
|
|
float Pixmap2D::getPixelf(int x, int y) const {
|
|
int index = (w*y+x)*components;
|
|
return pixels[index]/255.f;
|
|
}
|
|
|
|
float Pixmap2D::getComponentf(int x, int y, int component) const {
|
|
float c=0;
|
|
getComponent(x, y, component, c);
|
|
return c;
|
|
}
|
|
|
|
void Pixmap2D::setPixel(int x, int y, const uint8 *value) {
|
|
for(int i=0; i<components; ++i) {
|
|
int index = (w*y+x)*components+i;
|
|
pixels[index]= value[i];
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::setPixel(int x, int y, const float32 *value) {
|
|
for(int i=0; i<components; ++i) {
|
|
int index = (w*y+x)*components+i;
|
|
pixels[index]= static_cast<uint8>(value[i]*255.f);
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::setComponent(int x, int y, int component, uint8 value) {
|
|
int index = (w*y+x)*components+component;
|
|
pixels[index] = value;
|
|
}
|
|
|
|
void Pixmap2D::setComponent(int x, int y, int component, float32 value) {
|
|
int index = (w*y+x)*components+component;
|
|
pixels[index]= static_cast<uint8>(value*255.f);
|
|
}
|
|
|
|
//vector set
|
|
void Pixmap2D::setPixel(int x, int y, const Vec3f &p) {
|
|
for(int i = 0; i < components && i < 3; ++i) {
|
|
int index = (w*y+x)*components+i;
|
|
pixels[index]= static_cast<uint8>(p.ptr()[i]*255.f);
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::setPixel(int x, int y, const Vec4f &p) {
|
|
for(int i = 0; i < components && i < 4; ++i) {
|
|
int index = (w*y+x)*components+i;
|
|
pixels[index]= static_cast<uint8>(p.ptr()[i]*255.f);
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::setPixel(int x, int y, float p) {
|
|
int index = (w*y+x)*components;
|
|
pixels[index]= static_cast<uint8>(p*255.f);
|
|
}
|
|
|
|
void Pixmap2D::setPixels(const uint8 *value){
|
|
for(int i=0; i<w; ++i){
|
|
for(int j=0; j<h; ++j){
|
|
setPixel(i, j, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::setPixels(const float32 *value){
|
|
for(int i=0; i<w; ++i){
|
|
for(int j=0; j<h; ++j){
|
|
setPixel(i, j, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::setComponents(int component, uint8 value){
|
|
assert(component<components);
|
|
for(int i=0; i<w; ++i){
|
|
for(int j=0; j<h; ++j){
|
|
setComponent(i, j, component, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::setComponents(int component, float32 value){
|
|
assert(component<components);
|
|
for(int i=0; i<w; ++i){
|
|
for(int j=0; j<h; ++j){
|
|
setComponent(i, j, component, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
float splatDist(Vec2i a, Vec2i b){
|
|
return (max(abs(a.x-b.x),abs(a.y- b.y)) + 3.f*a.dist(b))/4.f;
|
|
}
|
|
|
|
void Pixmap2D::splat(const Pixmap2D *leftUp, const Pixmap2D *rightUp, const Pixmap2D *leftDown, const Pixmap2D *rightDown){
|
|
|
|
RandomGen random;
|
|
|
|
assert(components==3 || components==4);
|
|
|
|
if(
|
|
!doDimensionsAgree(leftUp) ||
|
|
!doDimensionsAgree(rightUp) ||
|
|
!doDimensionsAgree(leftDown) ||
|
|
!doDimensionsAgree(rightDown))
|
|
{
|
|
throw runtime_error("Pixmap2D::splat: pixmap dimensions don't agree");
|
|
}
|
|
|
|
for(int i=0; i<w; ++i){
|
|
for(int j=0; j<h; ++j){
|
|
|
|
float avg= (w+h)/2.f;
|
|
|
|
float distLu= splatDist(Vec2i(i, j), Vec2i(0, 0));
|
|
float distRu= splatDist(Vec2i(i, j), Vec2i(w, 0));
|
|
float distLd= splatDist(Vec2i(i, j), Vec2i(0, h));
|
|
float distRd= splatDist(Vec2i(i, j), Vec2i(w, h));
|
|
|
|
const float powFactor= 2.0f;
|
|
#ifdef USE_STREFLOP
|
|
distLu= streflop::pow(distLu, powFactor);
|
|
distRu= streflop::pow(distRu, powFactor);
|
|
distLd= streflop::pow(distLd, powFactor);
|
|
distRd= streflop::pow(distRd, powFactor);
|
|
avg= streflop::pow(avg, powFactor);
|
|
#else
|
|
distLu= pow(distLu, powFactor);
|
|
distRu= pow(distRu, powFactor);
|
|
distLd= pow(distLd, powFactor);
|
|
distRd= pow(distRd, powFactor);
|
|
avg= pow(avg, powFactor);
|
|
#endif
|
|
float lu= distLu>avg? 0: ((avg-distLu))*random.randRange(0.5f, 1.0f);
|
|
float ru= distRu>avg? 0: ((avg-distRu))*random.randRange(0.5f, 1.0f);
|
|
float ld= distLd>avg? 0: ((avg-distLd))*random.randRange(0.5f, 1.0f);
|
|
float rd= distRd>avg? 0: ((avg-distRd))*random.randRange(0.5f, 1.0f);
|
|
|
|
float total= lu+ru+ld+rd;
|
|
|
|
Vec4f pix= (leftUp->getPixel4f(i, j)*lu+
|
|
rightUp->getPixel4f(i, j)*ru+
|
|
leftDown->getPixel4f(i, j)*ld+
|
|
rightDown->getPixel4f(i, j)*rd)*(1.0f/total);
|
|
|
|
setPixel(i, j, pix);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::lerp(float t, const Pixmap2D *pixmap1, const Pixmap2D *pixmap2){
|
|
if(
|
|
!doDimensionsAgree(pixmap1) ||
|
|
!doDimensionsAgree(pixmap2))
|
|
{
|
|
throw runtime_error("Pixmap2D::lerp: pixmap dimensions don't agree");
|
|
}
|
|
|
|
for(int i=0; i<w; ++i){
|
|
for(int j=0; j<h; ++j){
|
|
setPixel(i, j, pixmap1->getPixel4f(i, j).lerp(t, pixmap2->getPixel4f(i, j)));
|
|
}
|
|
}
|
|
}
|
|
|
|
void Pixmap2D::copy(const Pixmap2D *sourcePixmap){
|
|
|
|
assert(components==sourcePixmap->getComponents());
|
|
|
|
if(w!=sourcePixmap->getW() || h!=sourcePixmap->getH()){
|
|
throw runtime_error("Pixmap2D::copy() dimensions must agree");
|
|
}
|
|
memcpy(pixels, sourcePixmap->getPixels(), w*h*sourcePixmap->getComponents());
|
|
}
|
|
|
|
void Pixmap2D::subCopy(int x, int y, const Pixmap2D *sourcePixmap){
|
|
assert(components==sourcePixmap->getComponents());
|
|
|
|
if(w<sourcePixmap->getW() && h<sourcePixmap->getH()){
|
|
throw runtime_error("Pixmap2D::subCopy(), bad dimensions");
|
|
}
|
|
|
|
uint8 *pixel= new uint8[components];
|
|
|
|
for(int i=0; i<sourcePixmap->getW(); ++i){
|
|
for(int j=0; j<sourcePixmap->getH(); ++j){
|
|
sourcePixmap->getPixel(i, j, pixel);
|
|
setPixel(i+x, j+y, pixel);
|
|
}
|
|
}
|
|
|
|
delete [] pixel;
|
|
}
|
|
|
|
bool Pixmap2D::doDimensionsAgree(const Pixmap2D *pixmap){
|
|
return pixmap->getW() == w && pixmap->getH() == h;
|
|
}
|
|
|
|
// =====================================================
|
|
// class Pixmap3D
|
|
// =====================================================
|
|
|
|
Pixmap3D::Pixmap3D(){
|
|
w= -1;
|
|
h= -1;
|
|
d= -1;
|
|
components= -1;
|
|
}
|
|
|
|
Pixmap3D::Pixmap3D(int w, int h, int d, int components){
|
|
init(w, h, d, components);
|
|
}
|
|
|
|
Pixmap3D::Pixmap3D(int d, int components){
|
|
init(d, components);
|
|
}
|
|
|
|
void Pixmap3D::init(int w, int h, int d, int components){
|
|
this->w= w;
|
|
this->h= h;
|
|
this->d= d;
|
|
this->components= components;
|
|
pixels= new uint8[(std::size_t)getPixelByteCount()];
|
|
}
|
|
|
|
uint64 Pixmap3D::getPixelByteCount() const {
|
|
return (h * w * d * components);
|
|
}
|
|
|
|
void Pixmap3D::init(int d, int components){
|
|
this->w= -1;
|
|
this->h= -1;
|
|
this->d= d;
|
|
this->components= components;
|
|
pixels= NULL;
|
|
}
|
|
|
|
void Pixmap3D::init(int components) {
|
|
this->w= -1;
|
|
this->h= -1;
|
|
this->d= -1;
|
|
this->components= components;
|
|
pixels= NULL;
|
|
}
|
|
|
|
void Pixmap3D::deletePixels() {
|
|
delete [] pixels;
|
|
pixels = NULL;
|
|
}
|
|
|
|
Pixmap3D::~Pixmap3D() {
|
|
deletePixels();
|
|
}
|
|
|
|
void Pixmap3D::loadSlice(const string &path, int slice) {
|
|
string extension= path.substr(path.find_last_of('.') + 1);
|
|
if(extension == "bmp") {
|
|
loadSliceBmp(path, slice);
|
|
}
|
|
else if(extension == "tga") {
|
|
loadSliceTga(path, slice);
|
|
}
|
|
else {
|
|
throw runtime_error("Unknown pixmap extension: "+extension);
|
|
}
|
|
this->path = path;
|
|
}
|
|
|
|
void Pixmap3D::loadSliceBmp(const string &path, int slice){
|
|
this->path = path;
|
|
|
|
PixmapIoBmp plb;
|
|
plb.openRead(path);
|
|
|
|
//init
|
|
w= plb.getW();
|
|
h= plb.getH();
|
|
if(components==-1){
|
|
components= 3;
|
|
}
|
|
if(pixels==NULL){
|
|
pixels= new uint8[(std::size_t)getPixelByteCount()];
|
|
}
|
|
|
|
//data
|
|
plb.read(&pixels[slice*w*h*components], components);
|
|
}
|
|
|
|
void Pixmap3D::loadSliceTga(const string &path, int slice){
|
|
this->path = path;
|
|
|
|
PixmapIoTga plt;
|
|
plt.openRead(path);
|
|
|
|
//header
|
|
int fileComponents= plt.getComponents();
|
|
|
|
//init
|
|
w= plt.getW();
|
|
h= plt.getH();
|
|
if(components==-1){
|
|
components= fileComponents;
|
|
}
|
|
if(pixels==NULL){
|
|
pixels= new uint8[(std::size_t)getPixelByteCount()];
|
|
}
|
|
|
|
//read data
|
|
plt.read(&pixels[slice*w*h*components], components);
|
|
}
|
|
|
|
// =====================================================
|
|
// class PixmapCube
|
|
// =====================================================
|
|
|
|
void PixmapCube::init(int w, int h, int components) {
|
|
for(int i=0; i<6; ++i) {
|
|
faces[i].init(w, h, components);
|
|
}
|
|
}
|
|
|
|
void PixmapCube::init(int components) {
|
|
for(int i=0; i<6; ++i) {
|
|
faces[i].init(components);
|
|
}
|
|
}
|
|
|
|
uint64 PixmapCube::getPixelByteCount() const {
|
|
uint64 result = 0;
|
|
for(int i=0; i<6; ++i) {
|
|
result += faces[i].getPixelByteCount();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
//load & save
|
|
void PixmapCube::loadFace(const string &path, int face) {
|
|
this->path[face] = path;
|
|
|
|
faces[face].load(path);
|
|
}
|
|
|
|
void PixmapCube::deletePixels() {
|
|
for(int i=0; i<6; ++i){
|
|
faces[i].deletePixels();
|
|
}
|
|
}
|
|
|
|
|
|
}}//end namespace
|