e85d191b46
- merge v0.01 --> Añadido fileselector - Añadidas fuentes de Gem y Pure Data - pix2jpg incluído en Gem. Archivos de construcción de Gem modificados. - Añadido fichero ompiling.txt con instrucciones de compilación
139 lines
3.4 KiB
C++
139 lines
3.4 KiB
C++
////////////////////////////////////////////////////////
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//
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// GEM - Graphics Environment for Multimedia
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//
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// zmoelnig@iem.kug.ac.at
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//
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// Implementation file
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//
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// Copyright (c) 1997-1999 Mark Danks.
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// Copyright (c) Günther Geiger.
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// Copyright (c) 2001-2011 IOhannes m zmölnig. forum::für::umläute. IEM. zmoelnig@iem.at
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// For information on usage and redistribution, and for a DISCLAIMER OF ALL
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// WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
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//
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/////////////////////////////////////////////////////////
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include "imageSGI.h"
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#include "Gem/RTE.h"
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#include "sgiimage.h"
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#include "plugins/PluginFactory.h"
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using namespace gem::plugins;
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REGISTER_IMAGELOADERFACTORY("SGI", imageSGI);
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/////////////////////////////////////////////////////////
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//
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// imageSGI
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//
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/////////////////////////////////////////////////////////
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// Constructor
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//
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/////////////////////////////////////////////////////////
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imageSGI :: imageSGI(void)
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{
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//post("imageSGI");
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}
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imageSGI :: ~imageSGI(void)
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{
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//post("~imageSGI");
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}
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/////////////////////////////////////////////////////////
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// really open the file ! (OS dependent)
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//
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/////////////////////////////////////////////////////////
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bool imageSGI :: load(std::string filename, imageStruct&result, gem::Properties&props)
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{
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int32 xsize, ysize, csize;
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if (!sizeofimage(filename.c_str(), &xsize, &ysize, &csize) )
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return(NULL);
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::verbose(2, "reading '%s' with SGI", filename.c_str());
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result.xsize=xsize;
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result.ysize=ysize;
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if (csize == 4 || csize == 3) {
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result.setCsizeByFormat(GL_RGBA);
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} else if (csize == 1) {
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result.setCsizeByFormat(GL_LUMINANCE);
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} else {
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//error("GemImageLoad(SGI): unknown color components in SGI file: %s", filename.c_str());
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return(false);
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}
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result.reallocate();
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unsigned int32 *readData = longimagedata((char *)filename.c_str());
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if (!readData) {
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//error("GemImageLoad: error reading SGI image file: %s", filename.c_str());
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return false;
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}
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unsigned char *src = reinterpret_cast<unsigned char*>(readData);
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unsigned char *dst = &(result.data[0]);
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const int yStride = result.xsize * result.csize;
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// do RGBA data
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if (csize == 4) {
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while (ysize--) {
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unsigned char *pixels = dst;
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int count = xsize;
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while(count--) {
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pixels[chRed] = src[0];
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pixels[chGreen] = src[1];
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pixels[chBlue] = src[2];
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pixels[chAlpha] = src[3];
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pixels += 4;
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src += 4;
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}
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dst += yStride;
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}
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}
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else if (csize == 3) {
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// do RGB data
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while (ysize--) {
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unsigned char *pixels = dst;
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int count = xsize;
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while(count--) {
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pixels[chRed] = src[0];
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pixels[chGreen] = src[1];
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pixels[chBlue] = src[2];
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pixels[chAlpha] = 255;;
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pixels += 4;
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src += 4;
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}
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dst += yStride;
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}
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} else {
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// do grayscale
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while (ysize--) {
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unsigned char *pixels = dst;
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int count = xsize;
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while(count--) {
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pixels[0] = src[0];
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pixels++;
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src += 4;
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}
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dst += yStride;
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}
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}
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free(readData);
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return true;
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}
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bool imageSGI::save(const imageStruct&image, const std::string&filename, const std::string&mimetype, const gem::Properties&props) {
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return false;
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}
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float imageSGI::estimateSave(const imageStruct&img, const std::string&filename, const std::string&mimetype, const gem::Properties&props) {
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return 0.;
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}
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