本文整理汇总了C++中Fl_Image::d方法的典型用法代码示例。如果您正苦于以下问题：C++ Fl_Image::d方法的具体用法？C++ Fl_Image::d怎么用？C++ Fl_Image::d使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Fl_Image的用法示例。
在下文中一共展示了Fl_Image::d方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
// Tests Open SLImage
TEST(ImageControllerTest, loadSLImageWithImageController) {
ImageController imageController;
imageController.open(filename);
Fl_Image * image = imageController.getCurrentImage();
ASSERT_NE((void *)NULL, image ) << "File did not open " << filename;
EXPECT_EQ(30, image->w());
EXPECT_EQ(30, image->h());
EXPECT_EQ(3, image->d());
EXPECT_EQ(92, image->ld()); //4 byte aligned under OpenCV not under FLTK
}示例2: openTextureFile
/* =============================================================================
=============================================================================== */
int C3DSceneMgr::createUITexture(string strFileName, int &width, int &height, int &txWidth)
{
Fl_Image * img = openTextureFile(strFileName);
if (img == NULL) {
return -1;
}
width = img->w();
height = img->h();
// need to add an alpha channel to properly overlay on existing textures
const unsigned char *pData = NULL;
if (img->d() == 3)
pData = makeRGBA((const unsigned char *) img->data()[0], width, height);
else
pData = (const unsigned char *) img->data()[0];
GLuint textureID;
glGenTextures(1, &textureID);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBindTexture(GL_TEXTURE_2D, textureID);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
int txHeight = height;
txWidth = (width <= 64) ? 64 : (width <= 128) ? 128 : width;
const unsigned char *pDataNew = NULL;
if (width != txWidth)
{
pDataNew = padOut(pData, width, height, txWidth);
txHeight = txWidth;
}
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, txWidth, txHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, pDataNew ? pDataNew : pData);
if (pDataNew) delete[] pDataNew;
if (img->d() == 3) delete[] pData;
delete img;
return textureID;
}示例3: createTextureDDS
/* =============================================================================
=============================================================================== */
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;
}示例4: if
//=============================================================================
Fl_Image * openTextureFile(string strFileName)
{
Fl_Image *img = NULL;
try
{
if (getExt(strFileName) == ".jpg" || getExt(strFileName) == ".jpeg")
img = new Fl_JPEG_Image(strFileName.c_str());
else if (getExt(strFileName) == ".png")
img = new Fl_PNG_Image(strFileName.c_str());
else
img = new Fl_BMP_Image(strFileName.c_str());
}
catch(std::bad_alloc x)
{
mem_alloc_failure(__FILE__, __LINE__);
return NULL;
}
// return if no image
if (img->d() == 0 || img->h() == 0 || img->w() == 0)
{
delete img;
return NULL;
}
// downsize if image is too big
if (img->h() > 4096 || img->w() > 4096)
{
cout << ("Downsizing image to maximum of 4096 a side");
int h = img->h() >= img->w() ? 4096 : 4096 * img->h() / img->w();
int w = img->w() >= img->h() ? 4096 : 4096 * img->w() / img->h();
Fl_Image *img2 = img->copy(w, h);
delete img;
img = img2;
}
return img;
}示例5: LoadFltkImage
virtual Bitmap *Load(IStream *stream) {
SPADES_MARK_FUNCTION();
// read all
std::string data = stream->ReadAllBytes();
// copy to buffer
Fl_Image *img = LoadFltkImage(data);
SPAssert(img);
SPAssert(img->count() >= 1);
const unsigned char* inPixels =
(const unsigned char *)img->data()[0];
int depth = img->d();
int width = img->w();
int height = img->h();
int pitch = width * depth + img->ld();
Handle<Bitmap> bmp;
try {
bmp = new Bitmap(width, height);
} catch(...) {
delete img;
throw;
}
try {
unsigned char *outPixels = (unsigned char *)bmp->GetPixels();
if(pitch == width * 4 && depth == 4) {
// if the format matches the requirement of Bitmap,
// just use it
memcpy(outPixels, inPixels, pitch * height);
} else {
// convert
const unsigned char* line;
for(int y = 0; y < height; y++) {
line = inPixels;
for(int x = 0; x < width; x++) {
uint8_t r, g, b, a;
switch(depth) {
case 1:
r = g = b = *(line++);
a = 255;
break;
case 2:
r = g = b = *(line++);
a = *(line++);
break;
case 3:
r = *(line++);
g = *(line++);
b = *(line++);
a = 255;
break;
case 4:
r = *(line++);
g = *(line++);
b = *(line++);
a = *(line++);
break;
default:
SPAssert(false);
}
*(outPixels++) = r;
*(outPixels++) = g;
*(outPixels++) = b;
*(outPixels++) = a;
}
inPixels += pitch;
}
}
delete img;
return bmp.Unmanage();
} catch(...) {
delete img;
throw;
}
}