1 /* This is a small demo of the high-performance GUIX graphics framework. */
2
3 #include <stdio.h>
4 #include "gx_api.h"
5 #include "partial_frame_buffer_16bpp_resources.h"
6 #include "partial_frame_buffer_16bpp_specifications.h"
7
8 GX_UBYTE alpha_value = 255;
9 GX_BOOL sprite_move_down = GX_TRUE;
10
11 VOID memory_free(VOID *mem);
12 void move_sprite(void);
13
sprite_event_handler(GX_WINDOW * window,GX_EVENT * event_ptr)14 UINT sprite_event_handler(GX_WINDOW *window, GX_EVENT *event_ptr)
15 {
16 switch (event_ptr->gx_event_type)
17 {
18 case GX_SIGNAL(ID_ALPHA_SLIDER, GX_EVENT_SLIDER_VALUE):
19 alpha_value = (GX_UBYTE)event_ptr->gx_event_payload.gx_event_longdata;
20 gx_system_dirty_mark(&sprite_screen.sprite_screen_apple_window);
21 break;
22
23 case GX_SIGNAL(ID_BIRD_SPRITE, GX_EVENT_SPRITE_COMPLETE):
24 move_sprite();
25 gx_sprite_start(&sprite_screen.sprite_screen_sprite_1, 0);
26 break;
27
28 default:
29 return gx_window_event_process(window, event_ptr);
30 }
31
32 return 0;
33 }
34
move_sprite(void)35 void move_sprite(void)
36 {
37 GX_RECTANGLE size;
38 GX_SPRITE *sprite = &sprite_screen.sprite_screen_sprite_1;
39
40 size = sprite->gx_widget_size;
41
42 if (sprite_move_down)
43 {
44 gx_utility_rectangle_shift(&size, 100, 117);
45 sprite_move_down = GX_FALSE;
46 }
47 else
48 {
49 gx_utility_rectangle_shift(&size, 100, -57);
50 sprite_move_down = GX_TRUE;
51 }
52 if (size.gx_rectangle_bottom > sprite_screen.gx_widget_size.gx_rectangle_bottom)
53 {
54 size.gx_rectangle_top -= sprite_screen.gx_widget_size.gx_rectangle_bottom;
55 size.gx_rectangle_bottom -= sprite_screen.gx_widget_size.gx_rectangle_bottom;
56 }
57 if (size.gx_rectangle_top < sprite_screen.gx_widget_size.gx_rectangle_top)
58 {
59 size.gx_rectangle_top += sprite_screen.gx_widget_size.gx_rectangle_bottom;
60 size.gx_rectangle_bottom += sprite_screen.gx_widget_size.gx_rectangle_bottom;
61 }
62
63
64 if (size.gx_rectangle_right > sprite_screen.gx_widget_size.gx_rectangle_right)
65 {
66 size.gx_rectangle_left -= sprite_screen.gx_widget_size.gx_rectangle_right;
67 size.gx_rectangle_right -= sprite_screen.gx_widget_size.gx_rectangle_right;
68 }
69 gx_widget_resize(sprite, &size);
70 }
71
apple_window_draw(GX_WINDOW * window)72 VOID apple_window_draw(GX_WINDOW *window)
73 {
74 GX_PIXELMAP *map;
75 GX_PIXELMAP scaled_map;
76 int width;
77 int height;
78 int xpos;
79 int ypos;
80
81 gx_context_pixelmap_get(GX_PIXELMAP_ID_RED_APPLE, &map);
82
83 if(map)
84 {
85 width = (alpha_value * map->gx_pixelmap_width) >> 8;
86 height = (alpha_value * map->gx_pixelmap_height) >> 8;
87
88 if ((width == 0) || (height == 0))
89 {
90 return;
91 }
92
93 if (gx_utility_pixelmap_resize(map, &scaled_map, width, height) == GX_SUCCESS)
94 {
95 xpos = window->gx_widget_size.gx_rectangle_left;
96 ypos = window->gx_widget_size.gx_rectangle_top;
97
98 xpos += (map->gx_pixelmap_width - width) >> 1;
99 ypos += (map->gx_pixelmap_height - height) >> 1;
100
101 gx_canvas_pixelmap_blend(xpos, ypos, &scaled_map, alpha_value);
102
103 if (scaled_map.gx_pixelmap_data)
104 {
105 memory_free((VOID *)scaled_map.gx_pixelmap_data);
106 }
107
108 if (scaled_map.gx_pixelmap_aux_data)
109 {
110 memory_free((VOID*)scaled_map.gx_pixelmap_aux_data);
111 }
112 }
113 }
114 }
