GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

sample/npu/demo_ai/common/font/canvas.h

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+/*!
+*****************************************************************************
+** file        osd.h
+**
+** version     2016-05-08 18:43 heyong -> v1.0
+**
+** brief       the canvas operations define.
+**
+** attention   THIS SAMPLE CODE IS PROVIDED AS IS. GOKE MICROELECTRONICS
+**              ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR
+**              OMMISSIONS
+**
+** (C) Copyright 2016-2020 BY GOKE MICROELECTRONICS CO.,LTD
+**
+*****************************************************************************
+*/
+#ifndef _CANVAS_H_
+#define _CANVAS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MAX_CANVAS_NUMS     (3)
+
+#define LITTLE_ENDIAN_ALIGNED(__val, __align) ( (__val) & ~((__align)-1u) )
+#define BIG_ENDIAN_ALIGNED(__val, __align) LITTLE_ENDIAN_ALIGNED((__val) + (__align) - 1, (__align))
+
+
+#ifndef ROUND_UP
+#define ROUND_UP(x, n)  ( ((x)+(n)-1u) & ~((n)-1u) )
+#endif
+
+typedef union canvas_pixel_format_s {
+	int argb8888;
+	struct {
+		unsigned char blue, green, red, alpha;
+	};
+} canvas_pixel_t;
+
+typedef struct canvas_s {
+	int width;
+	int height;
+	void* pixels;    
+    int width_min, height_min, height_max;
+    unsigned char* image;
+} canvas_t;
+
+canvas_t *canvas_init(int width, int height);
+int canvas_init_obj(canvas_t *canvas, int width, int height);
+int canvas_deinit(canvas_t *canvas);
+
+int canvas_put_pixel(canvas_t *canvas, int x, int y, canvas_pixel_t pixel);
+int canvas_get_pixel(canvas_t *canvas, int x, int y, canvas_pixel_t *pixel);
+
+int canvas_match_pixel(canvas_t *canvas, canvas_pixel_t pixel1, canvas_pixel_t pixel2);
+
+void canvas_clear(canvas_t *canvas);
+
+canvas_t *canvas_init_by_bmp24file(const char *bmp24_path);
+
+#ifdef __cplusplus
+};
+#endif
+#endif /* _CANVAS_H_ */
+