1#ifndef ENGINE_GFX_IMAGE_MANIPULATION_H
2#define ENGINE_GFX_IMAGE_MANIPULATION_H
3
4#include <engine/image.h>
5
6#include <cstdint>
7
8// Destination must have appropriate size for RGBA data
9bool ConvertToRgba(uint8_t *pDest, const CImageInfo &SourceImage);
10// Allocates appropriate buffer with malloc, must be freed by caller
11bool ConvertToRgbaAlloc(uint8_t *&pDest, const CImageInfo &SourceImage);
12// Replaces existing image data with RGBA data (unless already RGBA)
13bool ConvertToRgba(CImageInfo &Image);
14
15// Changes the image data (not the format)
16void ConvertToGrayscale(const CImageInfo &Image);
17void ConvertToGrayscaleRect(const CImageInfo &Image, size_t StartX, size_t StartY, size_t Width, size_t Height);
18
19// Color a rectangle inside an image with hue and saturation
20void ColorizeWithHueRect(CImageInfo &Image, float Hue, float Sat, size_t StartX, size_t StartY, size_t Width, size_t Height);
21
22// These functions assume that the image data is 4 bytes per pixel RGBA
23void DilateImage(uint8_t *pImageBuff, int w, int h);
24void DilateImage(const CImageInfo &Image);
25void DilateImageSub(uint8_t *pImageBuff, int w, int h, int x, int y, int SubWidth, int SubHeight);
26
27// Returned buffer is allocated with malloc, must be freed by caller
28uint8_t *ResizeImage(const uint8_t *pImageData, int Width, int Height, int NewWidth, int NewHeight, int BPP);
29// Replaces existing image data with resized buffer
30void ResizeImage(CImageInfo &Image, int NewWidth, int NewHeight);
31
32int HighestBit(int OfVar);
33
34#endif // ENGINE_GFX_IMAGE_MANIPULATION_H
35