robotgo/base/MMBitmap.h
2022-01-03 19:49:54 -04:00

93 lines
3.4 KiB
C

#pragma once
#ifndef MMBITMAP_H
#define MMBITMAP_H
#include "types.h"
#include "rgb.h"
#include <assert.h>
// #include <stdint.h>
#if defined(_MSC_VER)
#include "ms_stdint.h"
#else
#include <stdint.h>
#endif
#ifdef __cplusplus
extern "C"
{
#endif
struct _MMBitmap {
uint8_t *imageBuffer; /* Pixels stored in Quad I format; i.e., origin is in
* top left. Length should be height * bytewidth. */
size_t width; /* Never 0, unless image is NULL. */
size_t height; /* Never 0, unless image is NULL. */
size_t bytewidth; /* The aligned width (width + padding). */
uint8_t bitsPerPixel; /* Should be either 24 or 32. */
uint8_t bytesPerPixel; /* For convenience; should be bitsPerPixel / 8. */
};
typedef struct _MMBitmap MMBitmap;
typedef MMBitmap *MMBitmapRef;
// MMBitmapRef bitmap;
/* Creates new MMBitmap with the given values.
* Follows the Create Rule (caller is responsible for destroy()'ing object). */
MMBitmapRef createMMBitmap_c(uint8_t *buffer, size_t width, size_t height,
size_t bytewidth, uint8_t bitsPerPixel,
uint8_t bytesPerPixel);
/* Releases memory occupied by MMBitmap. */
void destroyMMBitmap(MMBitmapRef bitmap);
/* Releases memory occupied by MMBitmap. Acts via CallBack method*/
void destroyMMBitmapBuffer(char * bitmapBuffer, void * hint);
// /* Returns copy of MMBitmap, to be destroy()'d by caller. */
// MMBitmapRef copyMMBitmap(MMBitmapRef bitmap);
// /* Returns copy of one MMBitmap juxtaposed in another (to be destroy()'d
// * by the caller.), or NULL on error. */
// MMBitmapRef copyMMBitmapFromPortion(MMBitmapRef source, MMRect rect);
#define MMBitmapPointInBounds(image, p) ((p).x < (image)->width && \
(p).y < (image)->height)
#define MMBitmapRectInBounds(image, r) \
(((r).origin.x + (r).size.width <= (image)->width) && \
((r).origin.y + (r).size.height <= (image)->height))
#define MMBitmapGetBounds(image) MMRectMake(0, 0, image->width, image->height)
/* Get pointer to pixel of MMBitmapRef. No bounds checking is performed (check
* yourself before calling this with MMBitmapPointInBounds(). */
#define MMRGBColorRefAtPoint(image, x, y) \
(MMRGBColor *)(assert(MMBitmapPointInBounds(image, MMPointMake(x, y))), \
((image)->imageBuffer) + (((image)->bytewidth * (y)) \
+ ((x) * (image)->bytesPerPixel)))
/* Dereference pixel of MMBitmapRef. Again, no bounds checking is performed. */
#define MMRGBColorAtPoint(image, x, y) *MMRGBColorRefAtPoint(image, x, y)
/* Hex/integer value of color at point. */
#define MMRGBHexAtPoint(image, x, y) \
hexFromMMRGB(MMRGBColorAtPoint(image, x, y))
// /* Increment either point.x or point.y depending on the position of point.x.
// * That is, if x + 1 is >= width, increment y and start x at the beginning.
// * Otherwise, increment x.
// *
// * This is used as a convenience macro to scan rows when calling functions such
// * as findColorInRectAt() and findBitmapInBitmapAt(). */
// #define ITER_NEXT_POINT(pixel, width, start_x) \
// do { \
// if (++(pixel).x >= (width)) { \
// (pixel).x = start_x; \
// ++(point).y; \
// } \
// } while (0);
#ifdef __cplusplus
}
#endif
#endif /* MMBITMAP_H */