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- #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(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 */
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