/* =============================================================================
=============================================================================== */
int C3DSceneMgr::createTexture(string strFileName, int &width, int &height, int iTxMode)
{
if (strFileName == "") // Return from the function if no file name was passed in
return -1;
if (!fileexists(strFileName))
return -1;
// Load the image and store the data
int textureID = -1;
if (getExt(strFileName) == ".dds")
{
DDS_IMAGE_DATA *pDDSImageData = NULL;
if ((pDDSImageData = loadDDSTextureFile(strFileName)) != NULL)
{
textureID = createTextureDDS(pDDSImageData);
height = pDDSImageData->sizeY;
width = pDDSImageData->sizeX;
}
else // case where worldwind wraps jpegs in dds files
{
Fl_RGB_Image *img = new Fl_JPEG_Image(strFileName.c_str());
if (img->d() == 0)
return -1;
width = img->w();
height = img->h();
const unsigned char *pData = (const unsigned char *) img->data()[0];
textureID = createTexture(pData, width, height, GL_RGB, GL_RGB, iTxMode);
delete img;
}
}
else
{
Fl_Image * img = openTextureFile(strFileName);
if (img == NULL)
return -1;
width = img->w();
height = img->h();
const unsigned char *pData = (const unsigned char *) img->data()[0];
textureID = createTexture(pData, width, height, img->d() == 4 ? GL_RGBA : GL_RGB, GL_RGBA, iTxMode);
delete img;
}
return textureID;
}
GLuint gmshPopplerWrapper::getTextureForPage(double xres, double yres)
{
int iPage = _currentPage;
int numPages = getNumPages();
if(iPage < 0) iPage = 0;
if(iPage > numPages - 1) iPage = numPages - 1;
std::map<int, GLuint>::iterator it = _pages2textures.find(iPage);
if(it != _pages2textures.end()) return it->second;
if(!_currentDoc) return 0;
poppler::page *page = _currentDoc->create_page(iPage);
poppler::page_renderer pr;
pr.set_render_hint(poppler::page_renderer::text_antialiasing, true);
pr.set_render_hint(poppler::page_renderer::antialiasing, true);
poppler::image im = pr.render_page(page, xres, yres, -1, -1, -1);
im.save("hop.jpeg", "jpeg");
Fl_RGB_Image *img = new Fl_JPEG_Image("hop.jpeg");
// Fl_RGB_Image *img2 = (Fl_RGB_Image*)img->copy(2048, 2048);
glPixelStorei(GL_UNPACK_ROW_LENGTH, img->w());
GLuint texture;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, img->w(), img->h(), 0,
(img->d() == 4) ? GL_RGBA : GL_RGB, GL_UNSIGNED_BYTE,
img->array);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
_w = img->w();
_h = img->h();
delete img;
// delete img2;
_pages2textures[iPage] = texture;
return texture;
}