/* Prepares the first frame of animation */
static void draw_first_frame(void) {
VMUINT8* img_data;
VMUINT32 img_size;
vm_graphic_color_argb_t color;
/* draw background image */
//img_data = vm_res_get_image(IMG_ID_BG, &img_size);
//vm_graphic_draw_image_memory(g_frame_group[0], 0, 0, img_data, img_size, 0);
/* draw a purple horizontal blue line from center of screen */
color.a = 255;
color.r = 0;
color.g = 0;
color.b = 255;
vm_graphic_set_color(color);
vm_graphic_draw_solid_rectangle(&g_temp_frame, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
color.r = 255;
vm_graphic_set_color(color);
vm_graphic_draw_line(&g_temp_frame, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, SCREEN_WIDTH / 2 + LINE_LENGTH - 1, SCREEN_HEIGHT / 2);
/* create animation timer */
g_timer_id = vm_timer_create_precise(100, timer_callback, NULL);
theta = 0;
/* explicitly trigger 1st frame */
timer_callback(g_timer_id, NULL);
}
/* Update the rotating line, then update the display */
static void timer_callback(VM_TIMER_ID_PRECISE tid, void* user_data) {
vm_graphic_point_t positions[2] = {0,};
vm_graphic_color_argb_t color;
/* clear the background with blue color key */
color.a = 255;
color.r = 0;
color.g = 0;
color.b = 255;
vm_graphic_set_color(color);
vm_graphic_draw_solid_rectangle(g_frame_group[1], 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
/* rotate the line image */
matrix[0] = (VMFLOAT)cos(theta);
matrix[1] = -(VMFLOAT)sin(theta);
matrix[2] = -0.5 * SCREEN_WIDTH * (VMFLOAT)cos(theta) + 0.5 * SCREEN_HEIGHT * (VMFLOAT)sin(theta) + 0.5 * SCREEN_WIDTH;
matrix[3] = (VMFLOAT)sin(theta);
matrix[4] = (VMFLOAT)cos(theta);
matrix[5] = -0.5 * SCREEN_WIDTH * (VMFLOAT)sin(theta) - 0.5 * SCREEN_HEIGHT * (VMFLOAT)cos(theta) + 0.5 * SCREEN_HEIGHT;
matrix[6] = 0.0f;
matrix[7] = 0.0f;
matrix[8] = 1.0f;
vm_graphic_linear_transform(
g_frame_group[1],
&g_temp_frame,
matrix,
0, 0, SCREEN_WIDTH, SCREEN_HEIGHT,
0, 0, SCREEN_WIDTH, SCREEN_HEIGHT,
VM_GRAPHIC_TRANSFORM_SOURCE_KEY_EDGE_FILTER_DULPLICATE,
color,
VM_GRAPHIC_TRANSFORM_SAMPLE_MODE_BILINEAR_WITH_EDGE_FILTER_DULPLICATE,
VM_GRAPHIC_TRANSFORM_FLAG_NONE_BLOCKING);
/* update the rotating angle */
theta += (2 * PI) / FREQUENCY;
if(theta > 2 * PI) {
theta = 0;
}
#if defined(__HDK_LINKIT_ASSIST_2502__)
/* composite the rotated line image to background buffer and display it */
vm_graphic_blt_frame(g_frame_group, positions, 2);
#endif
}
void gui_draw_font( char chr, UG_S16 x, UG_S16 y, UG_COLOR fc, UG_COLOR bc, const UG_FONT* font)
{
char str[2] = {0, 0};
VMWCHAR s[4]; /* string's buffer */
VMUINT32 size;
vm_graphic_color_argb_t color; /* use to set screen and text color */
uint16_t height = font->char_height;
str[0] = chr;
vm_chset_ascii_to_ucs2(s, 4, str);
/* set color and draw text*/
if (g_gui_last_color != fc) {
vm_graphic_color_argb_t color;
color.a = (uint8_t)(fc >> 24);
color.r = (uint8_t)(fc >> 16);
color.g = (uint8_t)(fc >> 8);
color.b = (uint8_t) fc;
vm_graphic_set_color(color);
g_gui_last_color = fc;
}
/* Set font and draw hello world text */
static void draw_hello(void) {
VMWSTR string;
vm_graphic_color_argb_t color;
vm_graphic_frame_t frame;
vm_graphic_frame_t* frame_group[1];
VMWCHAR font_path[FONT_PATH_MAX_LENGTH + 1];
VMWSTR font_paths_group[1];
VM_RESULT result;
VMUINT32 pool_size;
VMUINT32 size;
vm_graphic_point_t positions[1] = { 0, 0 };
frame.buffer_length = SCREEN_WIDTH * SCREEN_HEIGHT * 2;
frame.buffer = vm_malloc_dma(frame.buffer_length);
if (frame.buffer == NULL) {
return;
}
frame.color_format = VM_GRAPHIC_COLOR_FORMAT_16_BIT;
frame.height = SCREEN_HEIGHT;
frame.width = SCREEN_WIDTH;
frame_group[0] = &frame;
string = vm_res_get_string(STR_ID_HELLO, &size);
color.a = 255;
color.r = 243;
color.g = 154;
color.b = 30;
vm_graphic_set_color(color);
vm_graphic_draw_solid_rectangle(&frame, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
result = vm_graphic_get_font_pool_size(EXTERNAL_FONT_SIZE, 1,
FONT_CACHE_SIZE, &pool_size);
if (VM_IS_SUCCEEDED(result)) {
font_pool = vm_malloc(pool_size);
if (NULL != font_pool) {
result = vm_graphic_init_font_pool(font_pool, pool_size);
} else {
vm_log_info("allocate font pool memory failed");
return;
}
}
if (!(VM_IS_SUCCEEDED(result))) {
vm_log_info("init font pool failed");
return;
}
vm_chset_ascii_to_ucs2(font_path, (FONT_PATH_MAX_LENGTH + 1) * 2,
EXTERNAL_FONT_PATH);
font_paths_group[0] = font_path;
vm_graphic_reset_font();
result = vm_graphic_set_font(font_paths_group, 1);
if (!(VM_IS_SUCCEEDED(result))) {
vm_log_info("set font failed");
}
color.r = 255;
color.g = 255;
color.b = 255;
vm_graphic_set_color(color);
vm_graphic_set_font_size(VM_GRAPHIC_LARGE_FONT);
vm_log_info("String: %d, %d, %d, %d, %d, %d", string[0], string[1],
string[2], string[3], string[4], string[5]);
vm_graphic_draw_text(&frame, 1, 1, string);
#if defined(__HDK_LINKIT_ASSIST_2502__)
vm_graphic_blt_frame(frame_group, positions, 1);
#endif
vm_free(frame.buffer);
vm_free(font_pool);
font_pool = NULL;
}
