github-code/lvgl
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(draw): add initial SDL renderer

Browse Source 
It caches SW rendered bitmaps in textures.
The cache is also updated to support data and source separately.
E.g. source is a path to an image, and if that image changes all
related cache entries needs to found and invalidated.

Limitations of SDL rederer:
- not all draw task types are supported
- image transformation is not supported
- some textures (e.g. button matrix texts) are not detected as cached
- images are not cached
- images are supported only from path
This commit is contained in:
Gabor Kiss-Vamosi
2023-11-18 15:33:58 +01:00
parent cd6b4db6e8
commit 2f3e8d4066
58 changed files with 1049 additions and 282 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
examples/widgets/canvas/lv_example_canvas_1.c
View File

@@ -26,11 +26,11 @@ void lv_example_canvas_1(void)
lv_draw_label_dsc_init(&label_dsc);
label_dsc.color = lv_palette_main(LV_PALETTE_ORANGE);
label_dsc.text = "Some text on text canvas";
static uint8_t cbuf[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)];
/*Create a buffer for the canvas*/
static uint8_t cbuf[LV_CANVAS_BUF_SIZE(CANVAS_WIDTH, CANVAS_HEIGHT, 16, LV_DRAW_BUF_STRIDE_ALIGN)];
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_NATIVE);
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_RGB565);
lv_obj_center(canvas);
lv_canvas_fill_bg(canvas, lv_palette_lighten(LV_PALETTE_GREY, 3), LV_OPA_COVER);
@@ -47,11 +47,18 @@ void lv_example_canvas_1(void)
/*Test the rotation. It requires another buffer where the original image is stored.
*So copy the current image to buffer and rotate it to the canvas*/
static uint8_t cbuf_tmp[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)];
static uint8_t cbuf_tmp[LV_CANVAS_BUF_SIZE(CANVAS_WIDTH, CANVAS_HEIGHT, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
/*Create a canvas and initialize its palette*/
canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_ARGB8888);
lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER);
lv_obj_center(canvas);
lv_memcpy(cbuf_tmp, cbuf, sizeof(cbuf_tmp));
lv_image_dsc_t img;
img.data = (void *)cbuf_tmp;
img.header.cf = LV_COLOR_FORMAT_NATIVE;
img.header.cf = LV_COLOR_FORMAT_ARGB8888;
img.header.w = CANVAS_WIDTH;
img.header.h = CANVAS_HEIGHT;

4
examples/widgets/canvas/lv_example_canvas_3.c
View File

@@ -10,11 +10,11 @@
void lv_example_canvas_3(void)
{
/*Create a buffer for the canvas*/
static uint8_t cbuf[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)];
static uint8_t cbuf[LV_CANVAS_BUF_SIZE(CANVAS_WIDTH, CANVAS_HEIGHT, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
/*Create a canvas and initialize its palette*/
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_NATIVE);
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_ARGB8888);
lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER);
lv_obj_center(canvas);

4
examples/widgets/canvas/lv_example_canvas_4.c
View File

@@ -10,11 +10,11 @@
void lv_example_canvas_4(void)
{
/*Create a buffer for the canvas*/
static uint8_t cbuf[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)];
static uint8_t cbuf[LV_CANVAS_BUF_SIZE(CANVAS_WIDTH, CANVAS_HEIGHT, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
/*Create a canvas and initialize its palette*/
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_NATIVE);
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_ARGB8888);
lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER);
lv_obj_center(canvas);

4
examples/widgets/canvas/lv_example_canvas_5.c
View File

@@ -10,11 +10,11 @@
void lv_example_canvas_5(void)
{
/*Create a buffer for the canvas*/
static uint8_t cbuf[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)];
static uint8_t cbuf[LV_CANVAS_BUF_SIZE(CANVAS_WIDTH, CANVAS_HEIGHT, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
/*Create a canvas and initialize its palette*/
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_NATIVE);
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_ARGB8888);
lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER);
lv_obj_center(canvas);

4
examples/widgets/canvas/lv_example_canvas_6.c
View File

@@ -10,11 +10,11 @@
void lv_example_canvas_6(void)
{
/*Create a buffer for the canvas*/
static uint8_t cbuf[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)];
static uint8_t cbuf[LV_CANVAS_BUF_SIZE(CANVAS_WIDTH, CANVAS_HEIGHT, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
/*Create a canvas and initialize its palette*/
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_NATIVE);
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_ARGB8888);
lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER);
lv_obj_center(canvas);

4
examples/widgets/canvas/lv_example_canvas_7.c
View File

@@ -10,11 +10,11 @@
void lv_example_canvas_7(void)
{
/*Create a buffer for the canvas*/
static uint8_t cbuf[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)];
static uint8_t cbuf[LV_CANVAS_BUF_SIZE(CANVAS_WIDTH, CANVAS_HEIGHT, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
/*Create a canvas and initialize its palette*/
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_NATIVE);
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_ARGB8888);
lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER);
lv_obj_center(canvas);

4
examples/widgets/canvas/lv_example_canvas_8.c
View File

@@ -12,11 +12,11 @@
void lv_example_canvas_8(void)
{
/*Create a buffer for the canvas*/
static uint8_t cbuf[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)];
static uint8_t cbuf[LV_CANVAS_BUF_SIZE(CANVAS_WIDTH, CANVAS_HEIGHT, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
/*Create a canvas and initialize its palette*/
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_NATIVE);
lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_ARGB8888);
lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER);
lv_obj_center(canvas);