diff options
Diffstat (limited to 'src/libs/lvgl/porting/lv_port_disp_template.c')
| m--------- | src/libs/lvgl | 0 | ||||
| -rw-r--r-- | src/libs/lvgl/porting/lv_port_disp_template.c | 196 |
2 files changed, 0 insertions, 196 deletions
diff --git a/src/libs/lvgl b/src/libs/lvgl new file mode 160000 +Subproject bd42ffeadb44df5dee6b7a92aeb93e3ef1d2a1f diff --git a/src/libs/lvgl/porting/lv_port_disp_template.c b/src/libs/lvgl/porting/lv_port_disp_template.c deleted file mode 100644 index 9752d5d..0000000 --- a/src/libs/lvgl/porting/lv_port_disp_template.c +++ /dev/null @@ -1,196 +0,0 @@ -/** - * @file lv_port_disp_templ.c - * - */ - - /*Copy this file as "lv_port_disp.c" and set this value to "1" to enable content*/ -#if 0 - -/********************* - * INCLUDES - *********************/ -#include "lv_port_disp_template.h" - -/********************* - * DEFINES - *********************/ - -/********************** - * TYPEDEFS - **********************/ - -/********************** - * STATIC PROTOTYPES - **********************/ -static void disp_init(void); - -static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p); -#if LV_USE_GPU -static void gpu_blend(lv_disp_drv_t * disp_drv, lv_color_t * dest, const lv_color_t * src, uint32_t length, lv_opa_t opa); -static void gpu_fill(lv_disp_drv_t * disp_drv, lv_color_t * dest_buf, lv_coord_t dest_width, - const lv_area_t * fill_area, lv_color_t color); -#endif - -/********************** - * STATIC VARIABLES - **********************/ - -/********************** - * MACROS - **********************/ - -/********************** - * GLOBAL FUNCTIONS - **********************/ - -void lv_port_disp_init(void) -{ - /*------------------------- - * Initialize your display - * -----------------------*/ - disp_init(); - - /*----------------------------- - * Create a buffer for drawing - *----------------------------*/ - - /* LittlevGL requires a buffer where it draws the objects. The buffer's has to be greater than 1 display row - * - * There are three buffering configurations: - * 1. Create ONE buffer with some rows: - * LittlevGL will draw the display's content here and writes it to your display - * - * 2. Create TWO buffer with some rows: - * LittlevGL will draw the display's content to a buffer and writes it your display. - * You should use DMA to write the buffer's content to the display. - * It will enable LittlevGL to draw the next part of the screen to the other buffer while - * the data is being sent form the first buffer. It makes rendering and flushing parallel. - * - * 3. Create TWO screen-sized buffer: - * Similar to 2) but the buffer have to be screen sized. When LittlevGL is ready it will give the - * whole frame to display. This way you only need to change the frame buffer's address instead of - * copying the pixels. - * */ - - /* Example for 1) */ - static lv_disp_buf_t disp_buf_1; - static lv_color_t buf1_1[LV_HOR_RES_MAX * 10]; /*A buffer for 10 rows*/ - lv_disp_buf_init(&disp_buf_1, buf1_1, NULL, LV_HOR_RES_MAX * 10); /*Initialize the display buffer*/ - - /* Example for 2) */ - static lv_disp_buf_t disp_buf_2; - static lv_color_t buf2_1[LV_HOR_RES_MAX * 10]; /*A buffer for 10 rows*/ - static lv_color_t buf2_2[LV_HOR_RES_MAX * 10]; /*An other buffer for 10 rows*/ - lv_disp_buf_init(&disp_buf_2, buf2_1, buf2_2, LV_HOR_RES_MAX * 10); /*Initialize the display buffer*/ - - /* Example for 3) */ - static lv_disp_buf_t disp_buf_3; - static lv_color_t buf3_1[LV_HOR_RES_MAX * LV_VER_RES_MAX]; /*A screen sized buffer*/ - static lv_color_t buf3_2[LV_HOR_RES_MAX * LV_VER_RES_MAX]; /*An other screen sized buffer*/ - lv_disp_buf_init(&disp_buf_3, buf3_1, buf3_2, LV_HOR_RES_MAX * LV_VER_RES_MAX); /*Initialize the display buffer*/ - - - /*----------------------------------- - * Register the display in LittlevGL - *----------------------------------*/ - - lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/ - lv_disp_drv_init(&disp_drv); /*Basic initialization*/ - - /*Set up the functions to access to your display*/ - - /*Set the resolution of the display*/ - disp_drv.hor_res = 480; - disp_drv.ver_res = 320; - - /*Used to copy the buffer's content to the display*/ - disp_drv.flush_cb = disp_flush; - - /*Set a display buffer*/ - disp_drv.buffer = &disp_buf_2; - -#if LV_USE_GPU - /*Optionally add functions to access the GPU. (Only in buffered mode, LV_VDB_SIZE != 0)*/ - - /*Blend two color array using opacity*/ - disp_drv.gpu_blend_cb = gpu_blend; - - /*Fill a memory array with a color*/ - disp_drv.gpu_fill_cb = gpu_fill; -#endif - - /*Finally register the driver*/ - lv_disp_drv_register(&disp_drv); -} - -/********************** - * STATIC FUNCTIONS - **********************/ - -/* Initialize your display and the required peripherals. */ -static void disp_init(void) -{ - /*You code here*/ -} - -/* Flush the content of the internal buffer the specific area on the display - * You can use DMA or any hardware acceleration to do this operation in the background but - * 'lv_disp_flush_ready()' has to be called when finished. */ -static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p) -{ - /*The most simple case (but also the slowest) to put all pixels to the screen one-by-one*/ - - int32_t x; - int32_t y; - for(y = area->y1; y <= area->y2; y++) { - for(x = area->x1; x <= area->x2; x++) { - /* Put a pixel to the display. For example: */ - /* put_px(x, y, *color_p)*/ - color_p++; - } - } - - /* IMPORTANT!!! - * Inform the graphics library that you are ready with the flushing*/ - lv_disp_flush_ready(disp_drv); -} - - -/*OPTIONAL: GPU INTERFACE*/ -#if LV_USE_GPU - -/* If your MCU has hardware accelerator (GPU) then you can use it to blend to memories using opacity - * It can be used only in buffered mode (LV_VDB_SIZE != 0 in lv_conf.h)*/ -static void gpu_blend(lv_disp_drv_t * disp_drv, lv_color_t * dest, const lv_color_t * src, uint32_t length, lv_opa_t opa) -{ - /*It's an example code which should be done by your GPU*/ - uint32_t i; - for(i = 0; i < length; i++) { - dest[i] = lv_color_mix(dest[i], src[i], opa); - } -} - -/* If your MCU has hardware accelerator (GPU) then you can use it to fill a memory with a color - * It can be used only in buffered mode (LV_VDB_SIZE != 0 in lv_conf.h)*/ -static void gpu_fill(lv_disp_drv_t * disp_drv, lv_color_t * dest_buf, lv_coord_t dest_width, - const lv_area_t * fill_area, lv_color_t color) -{ - /*It's an example code which should be done by your GPU*/ - int32_t x, y; - dest_buf += dest_width * fill_area->y1; /*Go to the first line*/ - - for(y = fill_area->y1; y < fill_area->y2; y++) { - for(x = fill_area->x1; x < fill_area->x2; x++) { - dest_buf[x] = color; - } - dest_buf+=dest_width; /*Go to the next line*/ - } -} - -#endif /*LV_USE_GPU*/ - -#else /* Enable this file at the top */ - -/* This dummy typedef exists purely to silence -Wpedantic. */ -typedef int keep_pedantic_happy; -#endif |
