從unsigned char *（freeimage）創建fipImage *？

Question

unsigned char * image_data; 
int bytes; // size 

format: 
RGBA , UNSIGNED_BYTE. 
(opengl-glGetTexImage()): 

如何從這些數據創建fipImage *？

C++。

---

unsigned char * image_data; 
int w = 1000; 
int h = 1000; 

這個函數寫IMAGE_DATA

glGetTexImage(GL_TEXTURE_2D, 0 , GL_RGBA , GL_UNSIGNED_BYTE , image_data); 

我想從IMAGE_DATA

fipImage image; 
something like this 
image.load(image_data ,w , h); 

Answer 1

您可以從原始像素以下方式創建的FreeImage對象創建fipImage：

FIBITMAP* Bitmap = FreeImage_Allocate(Width, Height, BitsPP, 0, 0, 0); 

memcpy(FreeImage_GetBits(Bitmap), image_data, Width * Height * (BitsPP/8));