minui/include/minui/minui.h - android_bootable_recovery - Gitiles

 /*
  * Copyright (C) 2007 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #ifndef _MINUI_H_
 #define _MINUI_H_

 #ifndef TW_USE_MINUI_21

 #include <sys/types.h>

 #include <functional>
 #include <string>
 #include <vector>

 //
 // Graphics.
 //

 struct GRSurface {
   int width;
   int height;
   int row_bytes;
   int pixel_bytes;
   unsigned char* data;
 };

 struct GRFont {
   GRSurface* texture;
   int char_width;
   int char_height;
 };

 enum GRRotation {
   ROTATION_NONE = 0,
   ROTATION_RIGHT = 1,
   ROTATION_DOWN = 2,
   ROTATION_LEFT = 3,
 };

 int gr_init();
 void gr_exit();

 int gr_fb_width();
 int gr_fb_height();

 void gr_flip();
 void gr_fb_blank(bool blank);

 void gr_clear();  // clear entire surface to current color
 void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
 void gr_fill(int x1, int y1, int x2, int y2);

 void gr_texticon(int x, int y, GRSurface* icon);
 #ifdef TW_NO_MINUI_CUSTOM_FONTS
 void gr_text(int x, int y, const char *s, bool bold);
 int gr_measure(const char *s);
 void gr_font_size(int *x, int *y);
 void gr_set_font(__attribute__ ((unused))const char* name);
 #else

 const GRFont* gr_sys_font();
 int gr_init_font(const char* name, GRFont** dest);
 void gr_text(const GRFont* font, int x, int y, const char* s, bool bold);
 int gr_measure(const GRFont* font, const char* s);
 void gr_font_size(const GRFont* font, int* x, int* y);
 #endif

 void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy);
 unsigned int gr_get_width(GRSurface* surface);
 unsigned int gr_get_height(GRSurface* surface);

 // Set rotation, flips gr_fb_width/height if 90 degree rotation difference
 void gr_rotate(GRRotation rotation);

 //
 // Input events.
 //

 struct input_event;

 #ifdef TW_USE_MINUI_WITH_DATA
 typedef int (*ev_callback)(int fd, uint32_t epevents, void* data);
 typedef int (*ev_set_key_callback)(int code, int value, void* data);

 int ev_init(ev_callback input_cb, void* data);
 int ev_add_fd(int fd, ev_callback cb, void* data);
 int ev_sync_key_state(ev_set_key_callback set_key_cb, void* data);
 #else
 using ev_callback = std::function<int(int fd, uint32_t epevents)>;
 using ev_set_key_callback = std::function<int(int code, int value)>;

 #ifdef TW_USE_MINUI_WITH_OPTIONAL_TOUCH_EVENTS
 int ev_init(ev_callback input_cb, bool allow_touch_inputs = false);
 void ev_iterate_touch_inputs(const std::function<void(int)>& action);
 #else
 int ev_init(ev_callback input_cb);
 #endif
 int ev_add_fd(int fd, ev_callback cb);
 int ev_sync_key_state(const ev_set_key_callback& set_key_cb);
 #endif
 void ev_exit();
 void ev_iterate_available_keys(const std::function<void(int)>& f);

 // 'timeout' has the same semantics as poll(2).
 //    0 : don't block
 //  < 0 : block forever
 //  > 0 : block for 'timeout' milliseconds
 int ev_wait(int timeout);

 int ev_get_input(int fd, uint32_t epevents, input_event* ev);
 void ev_dispatch();
 int ev_get_epollfd();

 //
 // Resources
 //

 bool matches_locale(const std::string& prefix, const std::string& locale);

 // res_create_*_surface() functions return 0 if no error, else
 // negative.
 //
 // A "display" surface is one that is intended to be drawn to the
 // screen with gr_blit().  An "alpha" surface is a grayscale image
 // interpreted as an alpha mask used to render text in the current
 // color (with gr_text() or gr_texticon()).
 //
 // All these functions load PNG images from "/res/images/${name}.png".

 // Load a single display surface from a PNG image.
 int res_create_display_surface(const char* name, GRSurface** pSurface);

 // Load an array of display surfaces from a single PNG image.  The PNG
 // should have a 'Frames' text chunk whose value is the number of
 // frames this image represents.  The pixel data itself is interlaced
 // by row.
 int res_create_multi_display_surface(const char* name, int* frames,
                                      int* fps, GRSurface*** pSurface);
 int res_create_multi_display_surface(const char* name, int* frames,
                                      GRSurface*** pSurface);

 // Load a single alpha surface from a grayscale PNG image.
 int res_create_alpha_surface(const char* name, GRSurface** pSurface);

 // Load part of a grayscale PNG image that is the first match for the
 // given locale.  The image is expected to be a composite of multiple
 // translations of the same text, with special added rows that encode
 // the subimages' size and intended locale in the pixel data.  See
 // bootable/recovery/tools/recovery_l10n for an app that will generate
 // these specialized images from Android resources.
 int res_create_localized_alpha_surface(const char* name, const char* locale,
                                        GRSurface** pSurface);

 // Return a list of locale strings embedded in |png_name|. Return a empty list in case of failure.
 std::vector<std::string> get_locales_in_png(const std::string& png_name);

 // Free a surface allocated by any of the res_create_*_surface()
 // functions.
 void res_free_surface(GRSurface* surface);

 #else //ifndef TW_USE_MINUI_21

 // This the old minui21/minui.h for compatibility with building TWRP
 // in pre 6.0 trees.

 #include <stdbool.h>

 #ifdef __cplusplus
 extern "C" {
 #endif

 typedef void* gr_surface;
 typedef unsigned short gr_pixel;

 int gr_init(void);
 void gr_exit(void);

 int gr_fb_width(void);
 int gr_fb_height(void);
 gr_pixel *gr_fb_data(void);
 void gr_flip(void);
 void gr_fb_blank(bool blank);

 void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
 void gr_fill(int x1, int y1, int x2, int y2);

 // system/core/charger uses different gr_print signatures in diferent
 // Android versions, either with or without int bold.
 int gr_text(int x, int y, const char *s, ...);
 int gr_text_impl(int x, int y, const char *s, int bold);

  void gr_texticon(int x, int y, gr_surface icon);
 int gr_measure(const char *s);
 void gr_font_size(int *x, int *y);
 void gr_get_memory_surface(gr_surface);

 void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy);
 unsigned int gr_get_width(gr_surface surface);
 unsigned int gr_get_height(gr_surface surface);

 // input event structure, include <linux/input.h> for the definition.
 // see http://www.mjmwired.net/kernel/Documentation/input/ for info.
 struct input_event;

 typedef int (*ev_callback)(int fd, uint32_t epevents, void *data);
 typedef int (*ev_set_key_callback)(int code, int value, void *data);

 int ev_init(ev_callback input_cb, void *data);
 void ev_exit(void);
 int ev_add_fd(int fd, ev_callback cb, void *data);
 int ev_sync_key_state(ev_set_key_callback set_key_cb, void *data);

 /* timeout has the same semantics as for poll
  *    0 : don't block
  *  < 0 : block forever
  *  > 0 : block for 'timeout' milliseconds
  */
 int ev_wait(int timeout);

 int ev_get_input(int fd, uint32_t epevents, struct input_event *ev);
 void ev_dispatch(void);
 int ev_get_epollfd(void);

 // Resources

 // Returns 0 if no error, else negative.
 int res_create_surface(const char* name, gr_surface* pSurface);

 // Load an array of display surfaces from a single PNG image.  The PNG
 // should have a 'Frames' text chunk whose value is the number of
 // frames this image represents.  The pixel data itself is interlaced
 // by row.
 int res_create_multi_display_surface(const char* name,
                                      int* frames, gr_surface** pSurface);

 int res_create_localized_surface(const char* name, gr_surface* pSurface);
 void res_free_surface(gr_surface surface);
 static inline int res_create_display_surface(const char* name, gr_surface* pSurface) {
     return res_create_surface(name, pSurface);
 }

 // These are new graphics functions from 5.0 that were not available in
 // 4.4 that are required by charger and healthd
 void gr_clear();


 #ifdef __cplusplus
 }
 #endif

 #endif // ifndef TW_USE_MINUI_21
 #endif // ifndef _MINUI_H_
	/*
	* Copyright (C) 2007 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#ifndef _MINUI_H_
	#define _MINUI_H_

	#ifndef TW_USE_MINUI_21

	#include <sys/types.h>

	#include <functional>
	#include <string>
	#include <vector>

	//
	// Graphics.
	//

	struct GRSurface {
	int width;
	int height;
	int row_bytes;
	int pixel_bytes;
	unsigned char* data;
	};

	struct GRFont {
	GRSurface* texture;
	int char_width;
	int char_height;
	};

	enum GRRotation {
	ROTATION_NONE = 0,
	ROTATION_RIGHT = 1,
	ROTATION_DOWN = 2,
	ROTATION_LEFT = 3,
	};

	int gr_init();
	void gr_exit();

	int gr_fb_width();
	int gr_fb_height();

	void gr_flip();
	void gr_fb_blank(bool blank);

	void gr_clear(); // clear entire surface to current color
	void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
	void gr_fill(int x1, int y1, int x2, int y2);

	void gr_texticon(int x, int y, GRSurface* icon);
	#ifdef TW_NO_MINUI_CUSTOM_FONTS
	void gr_text(int x, int y, const char *s, bool bold);
	int gr_measure(const char *s);
	void gr_font_size(int x, int y);
	void gr_set_font(__attribute__ ((unused))const char* name);
	#else

	const GRFont* gr_sys_font();
	int gr_init_font(const char* name, GRFont** dest);
	void gr_text(const GRFont* font, int x, int y, const char* s, bool bold);
	int gr_measure(const GRFont* font, const char* s);
	void gr_font_size(const GRFont* font, int* x, int* y);
	#endif

	void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy);
	unsigned int gr_get_width(GRSurface* surface);
	unsigned int gr_get_height(GRSurface* surface);

	// Set rotation, flips gr_fb_width/height if 90 degree rotation difference
	void gr_rotate(GRRotation rotation);

	//
	// Input events.
	//

	struct input_event;

	#ifdef TW_USE_MINUI_WITH_DATA
	typedef int (ev_callback)(int fd, uint32_t epevents, void data);
	typedef int (ev_set_key_callback)(int code, int value, void data);

	int ev_init(ev_callback input_cb, void* data);
	int ev_add_fd(int fd, ev_callback cb, void* data);
	int ev_sync_key_state(ev_set_key_callback set_key_cb, void* data);
	#else
	using ev_callback = std::function<int(int fd, uint32_t epevents)>;
	using ev_set_key_callback = std::function<int(int code, int value)>;

	#ifdef TW_USE_MINUI_WITH_OPTIONAL_TOUCH_EVENTS
	int ev_init(ev_callback input_cb, bool allow_touch_inputs = false);
	void ev_iterate_touch_inputs(const std::function<void(int)>& action);
	#else
	int ev_init(ev_callback input_cb);
	#endif
	int ev_add_fd(int fd, ev_callback cb);
	int ev_sync_key_state(const ev_set_key_callback& set_key_cb);
	#endif
	void ev_exit();
	void ev_iterate_available_keys(const std::function<void(int)>& f);

	// 'timeout' has the same semantics as poll(2).
	// 0 : don't block
	// < 0 : block forever
	// > 0 : block for 'timeout' milliseconds
	int ev_wait(int timeout);

	int ev_get_input(int fd, uint32_t epevents, input_event* ev);
	void ev_dispatch();
	int ev_get_epollfd();

	//
	// Resources
	//

	bool matches_locale(const std::string& prefix, const std::string& locale);

	// res_create_*_surface() functions return 0 if no error, else
	// negative.
	//
	// A "display" surface is one that is intended to be drawn to the
	// screen with gr_blit(). An "alpha" surface is a grayscale image
	// interpreted as an alpha mask used to render text in the current
	// color (with gr_text() or gr_texticon()).
	//
	// All these functions load PNG images from "/res/images/${name}.png".

	// Load a single display surface from a PNG image.
	int res_create_display_surface(const char* name, GRSurface** pSurface);

	// Load an array of display surfaces from a single PNG image. The PNG
	// should have a 'Frames' text chunk whose value is the number of
	// frames this image represents. The pixel data itself is interlaced
	// by row.
	int res_create_multi_display_surface(const char* name, int* frames,
	int* fps, GRSurface*** pSurface);
	int res_create_multi_display_surface(const char* name, int* frames,
	GRSurface*** pSurface);

	// Load a single alpha surface from a grayscale PNG image.
	int res_create_alpha_surface(const char* name, GRSurface** pSurface);

	// Load part of a grayscale PNG image that is the first match for the
	// given locale. The image is expected to be a composite of multiple
	// translations of the same text, with special added rows that encode
	// the subimages' size and intended locale in the pixel data. See
	// bootable/recovery/tools/recovery_l10n for an app that will generate
	// these specialized images from Android resources.
	int res_create_localized_alpha_surface(const char* name, const char* locale,
	GRSurface** pSurface);

	// Return a list of locale strings embedded in \|png_name\|. Return a empty list in case of failure.
	std::vector<std::string> get_locales_in_png(const std::string& png_name);

	// Free a surface allocated by any of the res_create_*_surface()
	// functions.
	void res_free_surface(GRSurface* surface);

	#else //ifndef TW_USE_MINUI_21

	// This the old minui21/minui.h for compatibility with building TWRP
	// in pre 6.0 trees.

	#include <stdbool.h>

	#ifdef __cplusplus
	extern "C" {
	#endif

	typedef void* gr_surface;
	typedef unsigned short gr_pixel;

	int gr_init(void);
	void gr_exit(void);

	int gr_fb_width(void);
	int gr_fb_height(void);
	gr_pixel *gr_fb_data(void);
	void gr_flip(void);
	void gr_fb_blank(bool blank);

	void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
	void gr_fill(int x1, int y1, int x2, int y2);

	// system/core/charger uses different gr_print signatures in diferent
	// Android versions, either with or without int bold.
	int gr_text(int x, int y, const char *s, ...);
	int gr_text_impl(int x, int y, const char *s, int bold);

	void gr_texticon(int x, int y, gr_surface icon);
	int gr_measure(const char *s);
	void gr_font_size(int x, int y);
	void gr_get_memory_surface(gr_surface);

	void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy);
	unsigned int gr_get_width(gr_surface surface);
	unsigned int gr_get_height(gr_surface surface);

	// input event structure, include <linux/input.h> for the definition.
	// see http://www.mjmwired.net/kernel/Documentation/input/ for info.
	struct input_event;

	typedef int (ev_callback)(int fd, uint32_t epevents, void data);
	typedef int (ev_set_key_callback)(int code, int value, void data);

	int ev_init(ev_callback input_cb, void *data);
	void ev_exit(void);
	int ev_add_fd(int fd, ev_callback cb, void *data);
	int ev_sync_key_state(ev_set_key_callback set_key_cb, void *data);

	/* timeout has the same semantics as for poll
	* 0 : don't block
	* < 0 : block forever
	* > 0 : block for 'timeout' milliseconds
	*/
	int ev_wait(int timeout);

	int ev_get_input(int fd, uint32_t epevents, struct input_event *ev);
	void ev_dispatch(void);
	int ev_get_epollfd(void);

	// Resources

	// Returns 0 if no error, else negative.
	int res_create_surface(const char* name, gr_surface* pSurface);

	// Load an array of display surfaces from a single PNG image. The PNG
	// should have a 'Frames' text chunk whose value is the number of
	// frames this image represents. The pixel data itself is interlaced
	// by row.
	int res_create_multi_display_surface(const char* name,
	int* frames, gr_surface** pSurface);

	int res_create_localized_surface(const char* name, gr_surface* pSurface);
	void res_free_surface(gr_surface surface);
	static inline int res_create_display_surface(const char* name, gr_surface* pSurface) {
	return res_create_surface(name, pSurface);
	}

	// These are new graphics functions from 5.0 that were not available in
	// 4.4 that are required by charger and healthd
	void gr_clear();


	#ifdef __cplusplus
	}
	#endif

	#endif // ifndef TW_USE_MINUI_21
	#endif // ifndef _MINUI_H_