1 /* This is a small demo of the high-performance GUIX graphics framework. */
2
3 #include <stdio.h>
4 #include "gx_api.h"
5
6 #include "sprite_16bpp_resources.h"
7 #include "sprite_16bpp_specifications.h"
8
9 /* Define the ThreadX demo thread control block and stack. */
10 MAIN_WINDOW_CONTROL_BLOCK *pMainWin;
11 GX_WINDOW *pAppleWin;
12
13 TX_THREAD demo_thread;
14 UCHAR demo_thread_stack[4096];
15
16 GX_WINDOW_ROOT *root;
17 GX_UBYTE alpha_value = 255;
18
19 TX_THREAD demo_thread;
20 UCHAR demo_thread_stack[4096];
21 TX_BYTE_POOL resize_pool;
22
23 #define SCRATCHPAD_PIXELS (DISPLAY_1_X_RESOLUTION * DISPLAY_1_Y_RESOLUTION)
24 GX_COLOR scratchpad[SCRATCHPAD_PIXELS];
25
26 /* Define prototypes. */
27 VOID start_guix();
28
29 #define USE_16BPP
30
31 #ifdef USE_16BPP
32 extern UINT win32_graphics_driver_setup_565rgb(GX_DISPLAY *display);
33 #else
34 extern UINT win32_graphics_driver_setup_24xrgb(GX_DISPLAY *display);
35 #endif
36
resize_memory_allocate(ULONG size)37 VOID *resize_memory_allocate(ULONG size)
38 {
39 VOID *memptr;
40
41 if (tx_byte_allocate(&resize_pool, &memptr, size, TX_NO_WAIT) == TX_SUCCESS)
42 {
43 return memptr;
44 }
45 return NULL;
46 }
47
resize_memory_free(VOID * mem)48 void resize_memory_free(VOID *mem)
49 {
50 tx_byte_release(mem);
51 }
52
main(int argc,char ** argv)53 int main(int argc, char ** argv)
54 {
55 tx_kernel_enter();
56 return(0);
57 }
58
tx_application_define(void * first_unused_memory)59 VOID tx_application_define(void *first_unused_memory)
60 {
61
62 /* create byte pool for resize to use */
63 tx_byte_pool_create(&resize_pool, "scratchpad", scratchpad,
64 SCRATCHPAD_PIXELS * sizeof(GX_COLOR));
65
66 start_guix();
67
68 /* install our memory allocator and de-allocator */
69 gx_system_memory_allocator_set(resize_memory_allocate, resize_memory_free);
70 }
71
72
start_guix()73 VOID start_guix()
74 {
75 /* Initialize GUIX. */
76 gx_system_initialize();
77
78 #ifdef USE_16BPP
79 gx_studio_display_configure(DISPLAY_1, win32_graphics_driver_setup_565rgb,
80 LANGUAGE_ENGLISH, DISPLAY_1_DEFAULT_THEME, &root);
81 #else
82 gx_studio_display_configure(DISPLAY_1, win32_graphics_driver_setup_24xrgb,
83 LANGUAGE_ENGLISH, DISPLAY_1_DEFAULT_THEME, &root);
84 #endif
85
86 /* create the main screen */
87 gx_studio_named_widget_create("main_window", (GX_WIDGET *) root, (GX_WIDGET **) &pMainWin);
88
89 pAppleWin = &pMainWin -> main_window_AppleWindow;
90
91 gx_widget_show(root);
92
93 /* let GUIX run */
94 gx_system_start();
95 }
96
DisplayNewAlphaValue(GX_WINDOW * parent)97 void DisplayNewAlphaValue(GX_WINDOW *parent)
98 {
99 GX_PROMPT *prompt;
100 static GX_CHAR number_val[10];
101 GX_STRING string;
102
103 gx_widget_find(parent, ID_ALPHA_DISPLAY, 1, &prompt);
104 gx_utility_ltoa(alpha_value, number_val, 10);
105 string.gx_string_ptr = number_val;
106 string.gx_string_length = strnlen(number_val, sizeof(number_val));
107 gx_prompt_text_set_ext(prompt, &string);
108 }
109
MainWindowEventProcess(GX_WINDOW * window,GX_EVENT * myevent)110 UINT MainWindowEventProcess(GX_WINDOW *window, GX_EVENT *myevent)
111 {
112 UINT status = 0;
113
114 switch(myevent->gx_event_type)
115 {
116 case GX_SIGNAL(ID_ALPHA_SLIDER, GX_EVENT_SLIDER_VALUE):
117 alpha_value = (GX_UBYTE) myevent->gx_event_payload.gx_event_longdata;
118 DisplayNewAlphaValue(window);
119 gx_system_dirty_mark(&main_window.main_window_AppleWindow);
120 break;
121
122 default:
123 status = gx_window_event_process(window, myevent);
124 break;
125 }
126 return status;
127 }
128
AppleWindowDraw(GX_WINDOW * window)129 VOID AppleWindowDraw(GX_WINDOW *window)
130 {
131 GX_PIXELMAP *map;
132 GX_PIXELMAP scaled_map;
133 int width;
134 int height;
135 int xpos;
136 int ypos;
137
138 gx_context_pixelmap_get(GX_PIXELMAP_ID_RED_APPLE, &map);
139
140 width = (alpha_value * map->gx_pixelmap_width) >> 8;
141 height = (alpha_value * map->gx_pixelmap_height) >> 8;
142
143 if((width == 0) || (height == 0))
144 {
145 return;
146 }
147
148 if (gx_utility_pixelmap_resize(map, &scaled_map, width, height) == GX_SUCCESS)
149 {
150 xpos = window->gx_widget_size.gx_rectangle_left;
151 ypos = window->gx_widget_size.gx_rectangle_top;
152
153 xpos += (map->gx_pixelmap_width - width) >> 1;
154 ypos += (map->gx_pixelmap_height - height) >> 1;
155
156 gx_canvas_pixelmap_blend(xpos, ypos, &scaled_map, alpha_value);
157
158 if (scaled_map.gx_pixelmap_data)
159 {
160 resize_memory_free((VOID *)scaled_map.gx_pixelmap_data);
161 }
162
163 if (scaled_map.gx_pixelmap_aux_data)
164 {
165 resize_memory_free((VOID *)scaled_map.gx_pixelmap_aux_data);
166 }
167 }
168
169 }
170
171
172
