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test(draw): add blend mode test to lv_demo_render

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This commit is contained in:
Gabor Kiss-Vamosi
2023-11-20 22:32:07 +01:00
parent 5f12474a46
commit dbf0444d79
32 changed files with 220 additions and 54 deletions
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124
demos/render/lv_demo_render.c
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@@ -692,13 +692,127 @@ static void layer_normal_cb(lv_obj_t * parent)
layer_core_cb(parent, LV_BLEND_MODE_NORMAL);
}
static void layer_additive_cb(lv_obj_t * parent)
static void create_blend_mode_image_buffer(lv_obj_t * canvas)
{
return; /*Not working*/
lv_canvas_fill_bg(canvas, lv_color_hex3(0x844), LV_OPA_COVER);
lv_layer_t layer;
lv_canvas_init_layer(canvas, &layer);
lv_draw_label_dsc_t dsc;
lv_draw_label_dsc_init(&dsc);
dsc.color = lv_color_hex(0xff0000);
dsc.text = "R";
lv_area_t coords = {0, 0, 100, 60};
lv_draw_label(&layer, &dsc, &coords);
dsc.color = lv_color_hex(0x00ff00);
dsc.text = "G";
coords.x1 = 11;
lv_draw_label(&layer, &dsc, &coords);
dsc.color = lv_color_hex(0x0000ff);
dsc.text = "B";
coords.x1 = 23;
lv_draw_label(&layer, &dsc, &coords);
dsc.color = lv_color_hex(0xffffff);
dsc.text = "W";
coords.y1 = 14;
coords.x1 = 4;
lv_draw_label(&layer, &dsc, &coords);
dsc.color = lv_color_hex(0x000000);
dsc.text = "K";
coords.x1 = 20;
lv_draw_label(&layer, &dsc, &coords);
lv_canvas_finish_layer(canvas, &layer);
}
static lv_obj_t * create_blend_mode_obj(lv_obj_t * parent, int32_t col, int32_t row, const void * src,
lv_blend_mode_t blend_mode)
{
lv_obj_t * obj = lv_image_create(parent);
lv_image_set_src(obj, src);
lv_image_set_blend_mode(obj, blend_mode);
lv_obj_set_style_image_opa(obj, opa_saved, 0);
lv_obj_set_style_image_recolor(obj, lv_color_hex(0x00ff00), 0);
add_to_cell(obj, col, row);
return obj;
}
static void blend_mode_cb(lv_obj_t * parent)
{
static const int32_t grid_cols[] = {53, 53, 53, 53, 53, 53, 53, 53, 53, LV_GRID_TEMPLATE_LAST};
static const int32_t grid_rows[] = {32, 40, 40, 40, 40, 40, 40, LV_GRID_TEMPLATE_LAST};
lv_obj_set_grid_dsc_array(parent, grid_cols, grid_rows);
/*Make the parent darker for additive blending*/
lv_obj_set_style_bg_color(parent, lv_color_hex3(0x008), 0);
layer_core_cb(parent, LV_BLEND_MODE_ADDITIVE);
lv_obj_set_style_bg_color(parent, lv_color_hex(0x808080), 0);
static uint8_t buf_rgb565[LV_CANVAS_BUF_SIZE(36, 30, 16, LV_DRAW_BUF_STRIDE_ALIGN)];
static uint8_t buf_rgb888[LV_CANVAS_BUF_SIZE(36, 30, 24, LV_DRAW_BUF_STRIDE_ALIGN)];
static uint8_t buf_xrgb8888[LV_CANVAS_BUF_SIZE(36, 30, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
static uint8_t buf_argb8888[LV_CANVAS_BUF_SIZE(36, 30, 32, LV_DRAW_BUF_STRIDE_ALIGN)];
/*The canvas will stay in the top left corner to show the original image*/
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
const char * cf_txt[] = {"RGB565", "RGB888.", "XRGB8888", "ARGB8888"};
lv_color_format_t cf_values[] = {LV_COLOR_FORMAT_RGB565, LV_COLOR_FORMAT_RGB888, LV_COLOR_FORMAT_XRGB8888, LV_COLOR_FORMAT_ARGB8888};
uint8_t * cf_bufs[] = {buf_rgb565, buf_rgb888, buf_xrgb8888, buf_argb8888};
static lv_image_dsc_t image_dscs[4];
const char * mode_txt[] = {"Add.", "Sub.", "Mul."};
lv_blend_mode_t mode_values[] = {LV_BLEND_MODE_ADDITIVE, LV_BLEND_MODE_SUBTRACTIVE, LV_BLEND_MODE_MULTIPLY};
uint32_t m;
for(m = 0; m < 3; m++) {
lv_obj_t * mode_label = lv_label_create(parent);
lv_label_set_text(mode_label, mode_txt[m]);
lv_obj_set_grid_cell(mode_label, LV_GRID_ALIGN_CENTER, 0, 1, LV_GRID_ALIGN_CENTER, 1 + m * 2, 2);
}
uint32_t cf;
for(cf = 0; cf < 4; cf++) {
lv_obj_t * cf_label = lv_label_create(parent);
lv_label_set_text(cf_label, cf_txt[cf]);
lv_obj_set_grid_cell(cf_label, LV_GRID_ALIGN_CENTER, 1 + cf * 2, 2, LV_GRID_ALIGN_CENTER, 0, 1);
lv_canvas_set_buffer(canvas, cf_bufs[cf], 36, 30, cf_values[cf]);
create_blend_mode_image_buffer(canvas);
lv_img_dsc_t * img_src = lv_canvas_get_image(canvas);
image_dscs[cf] = *img_src;
for(m = 0; m < 3; m++) {
lv_obj_t * img;
img = create_blend_mode_obj(parent, 1 + cf * 2, 1 + m * 2, &image_dscs[cf], mode_values[m]);
img = create_blend_mode_obj(parent, 2 + cf * 2, 1 + m * 2, &image_dscs[cf], mode_values[m]);
lv_image_set_rotation(img, 200);
img = create_blend_mode_obj(parent, 1 + cf * 2, 2 + m * 2, &image_dscs[cf], mode_values[m]);
lv_obj_set_style_image_recolor_opa(img, LV_OPA_50, 0);
img = create_blend_mode_obj(parent, 2 + cf * 2, 2 + m * 2, &image_dscs[cf], mode_values[m]);
lv_image_set_rotation(img, 200);
lv_obj_set_style_image_recolor_opa(img, LV_OPA_50, 0);
}
}
/*Show the recolored image to show the original image*/
lv_obj_t * img_recolored = lv_image_create(parent);
lv_image_set_src(img_recolored, lv_canvas_get_image(canvas));
lv_obj_set_style_image_recolor(img_recolored, lv_color_hex(0x00ff00), 0);
lv_obj_set_style_image_recolor_opa(img_recolored, LV_OPA_50, 0);
lv_obj_set_y(img_recolored, 30);
lv_obj_add_flag(img_recolored, LV_OBJ_FLAG_IGNORE_LAYOUT);
}
/**********************
@@ -717,7 +831,7 @@ static scene_dsc_t scenes[] = {
{.name = "arc_image", .create_cb = arc_image_cb},
{.name = "triangle", .create_cb = triangle_cb},
{.name = "layer_normal", .create_cb = layer_normal_cb},
{.name = "layer_additive", .create_cb = layer_additive_cb},
{.name = "blend_mode", .create_cb = blend_mode_cb},
{.name = "", .create_cb = NULL}
};

1
demos/render/lv_demo_render.h
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@@ -36,6 +36,7 @@ typedef enum {
LV_DEMO_RENDER_SCENE_ARC_IMAGE,
LV_DEMO_RENDER_SCENE_TRIANGLE,
LV_DEMO_RENDER_SCENE_LAYER_NORMAL,
LV_DEMO_RENDER_SCENE_BLEND_MODE,
_LV_DEMO_RENDER_SCENE_NUM,
} lv_demo_render_scene_t;