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fix(draw): solve memory leaking issue

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This commit is contained in:
Gabriel Wang
2022-06-30 22:38:51 +01:00
parent c2c44c68ee
commit 6f36e1a8c3
1 changed files with 43 additions and 41 deletions
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src/draw/sw/lv_draw_sw_layer.c
+43 -41
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@@ -43,54 +43,56 @@
struct _lv_draw_layer_ctx_t * lv_draw_sw_layer_create(struct _lv_draw_ctx_t * draw_ctx, lv_draw_layer_ctx_t * layer_ctx,
lv_draw_layer_flags_t flags)
{
if(LV_COLOR_SCREEN_TRANSP == 0 && (flags & LV_DRAW_LAYER_FLAG_HAS_ALPHA)) {
LV_LOG_WARN("Rendering this widget needs LV_COLOR_SCREEN_TRANSP 1");
return NULL;
}
do{
if(LV_COLOR_SCREEN_TRANSP == 0 && (flags & LV_DRAW_LAYER_FLAG_HAS_ALPHA)) {
LV_LOG_WARN("Rendering this widget needs LV_COLOR_SCREEN_TRANSP 1");
break;
}
lv_draw_sw_layer_ctx_t * layer_sw_ctx = (lv_draw_sw_layer_ctx_t *) layer_ctx;
uint32_t px_size = flags & LV_DRAW_LAYER_FLAG_HAS_ALPHA ? LV_IMG_PX_SIZE_ALPHA_BYTE : sizeof(lv_color_t);
if(flags & LV_DRAW_LAYER_FLAG_CAN_SUBDIVIDE) {
layer_sw_ctx->buf_size_bytes = LV_LAYER_SIMPLE_BUF_SIZE;
uint32_t full_size = lv_area_get_size(&layer_sw_ctx->base_draw.area_full) * px_size;
if(layer_sw_ctx->buf_size_bytes > full_size) layer_sw_ctx->buf_size_bytes = full_size;
layer_sw_ctx->base_draw.buf = lv_mem_alloc(layer_sw_ctx->buf_size_bytes);
if(layer_sw_ctx->base_draw.buf == NULL) {
LV_LOG_WARN("Cannot allocate %"LV_PRIu32" bytes for layer buffer. Allocating %"LV_PRIu32" bytes instead. (Reduced performance)",
(uint32_t)layer_sw_ctx->buf_size_bytes, (uint32_t)LV_LAYER_SIMPLE_FALLBACK_BUF_SIZE * px_size);
layer_sw_ctx->buf_size_bytes = LV_LAYER_SIMPLE_FALLBACK_BUF_SIZE;
lv_draw_sw_layer_ctx_t * layer_sw_ctx = (lv_draw_sw_layer_ctx_t *) layer_ctx;
uint32_t px_size = flags & LV_DRAW_LAYER_FLAG_HAS_ALPHA ? LV_IMG_PX_SIZE_ALPHA_BYTE : sizeof(lv_color_t);
if(flags & LV_DRAW_LAYER_FLAG_CAN_SUBDIVIDE) {
layer_sw_ctx->buf_size_bytes = LV_LAYER_SIMPLE_BUF_SIZE;
uint32_t full_size = lv_area_get_size(&layer_sw_ctx->base_draw.area_full) * px_size;
if(layer_sw_ctx->buf_size_bytes > full_size) layer_sw_ctx->buf_size_bytes = full_size;
layer_sw_ctx->base_draw.buf = lv_mem_alloc(layer_sw_ctx->buf_size_bytes);
if(layer_sw_ctx->base_draw.buf == NULL) {
lv_mem_free(layer_ctx);
return NULL;
LV_LOG_WARN("Cannot allocate %"LV_PRIu32" bytes for layer buffer. Allocating %"LV_PRIu32" bytes instead. (Reduced performance)",
(uint32_t)layer_sw_ctx->buf_size_bytes, (uint32_t)LV_LAYER_SIMPLE_FALLBACK_BUF_SIZE * px_size);
layer_sw_ctx->buf_size_bytes = LV_LAYER_SIMPLE_FALLBACK_BUF_SIZE;
layer_sw_ctx->base_draw.buf = lv_mem_alloc(layer_sw_ctx->buf_size_bytes);
if(layer_sw_ctx->base_draw.buf == NULL) {
break;
}
}
layer_sw_ctx->base_draw.area_act = layer_sw_ctx->base_draw.area_full;
layer_sw_ctx->base_draw.area_act.y2 = layer_sw_ctx->base_draw.area_full.y1;
lv_coord_t w = lv_area_get_width(&layer_sw_ctx->base_draw.area_act);
layer_sw_ctx->base_draw.max_row_with_alpha = layer_sw_ctx->buf_size_bytes / w / LV_IMG_PX_SIZE_ALPHA_BYTE;
layer_sw_ctx->base_draw.max_row_with_no_alpha = layer_sw_ctx->buf_size_bytes / w / sizeof(lv_color_t);
}
layer_sw_ctx->base_draw.area_act = layer_sw_ctx->base_draw.area_full;
layer_sw_ctx->base_draw.area_act.y2 = layer_sw_ctx->base_draw.area_full.y1;
lv_coord_t w = lv_area_get_width(&layer_sw_ctx->base_draw.area_act);
layer_sw_ctx->base_draw.max_row_with_alpha = layer_sw_ctx->buf_size_bytes / w / LV_IMG_PX_SIZE_ALPHA_BYTE;
layer_sw_ctx->base_draw.max_row_with_no_alpha = layer_sw_ctx->buf_size_bytes / w / sizeof(lv_color_t);
}
else {
layer_sw_ctx->base_draw.area_act = layer_sw_ctx->base_draw.area_full;
layer_sw_ctx->buf_size_bytes = lv_area_get_size(&layer_sw_ctx->base_draw.area_full) * px_size;
layer_sw_ctx->base_draw.buf = lv_mem_alloc(layer_sw_ctx->buf_size_bytes);
lv_memset_00(layer_sw_ctx->base_draw.buf, layer_sw_ctx->buf_size_bytes);
layer_sw_ctx->has_alpha = flags & LV_DRAW_LAYER_FLAG_HAS_ALPHA ? 1 : 0;
if(layer_sw_ctx->base_draw.buf == NULL) {
lv_mem_free(layer_ctx);
return NULL;
else {
layer_sw_ctx->base_draw.area_act = layer_sw_ctx->base_draw.area_full;
layer_sw_ctx->buf_size_bytes = lv_area_get_size(&layer_sw_ctx->base_draw.area_full) * px_size;
layer_sw_ctx->base_draw.buf = lv_mem_alloc(layer_sw_ctx->buf_size_bytes);
lv_memset_00(layer_sw_ctx->base_draw.buf, layer_sw_ctx->buf_size_bytes);
layer_sw_ctx->has_alpha = flags & LV_DRAW_LAYER_FLAG_HAS_ALPHA ? 1 : 0;
if(layer_sw_ctx->base_draw.buf == NULL) {
break;
}
draw_ctx->buf = layer_sw_ctx->base_draw.buf;
draw_ctx->buf_area = &layer_sw_ctx->base_draw.area_act;
draw_ctx->clip_area = &layer_sw_ctx->base_draw.area_act;
lv_disp_t * disp_refr = _lv_refr_get_disp_refreshing();
disp_refr->driver->screen_transp = flags & LV_DRAW_LAYER_FLAG_HAS_ALPHA ? 1 : 0;
}
return layer_ctx;
} while(0);
draw_ctx->buf = layer_sw_ctx->base_draw.buf;
draw_ctx->buf_area = &layer_sw_ctx->base_draw.area_act;
draw_ctx->clip_area = &layer_sw_ctx->base_draw.area_act;
lv_disp_t * disp_refr = _lv_refr_get_disp_refreshing();
disp_refr->driver->screen_transp = flags & LV_DRAW_LAYER_FLAG_HAS_ALPHA ? 1 : 0;
}
return layer_ctx;
lv_mem_free(layer_ctx);
return NULL;
}
void lv_draw_sw_layer_adjust(struct _lv_draw_ctx_t * draw_ctx, struct _lv_draw_layer_ctx_t * layer_ctx,