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perf(draw): optimize LV_COLOR_FORMAT_NATIVE

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This commit is contained in:
Gabor Kiss-Vamosi
2022-07-24 22:02:31 +02:00
parent c6f76ec755
commit 85ef9b2b84
2 changed files with 29 additions and 26 deletions
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4
src/core/lv_refr.c
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@@ -319,8 +319,8 @@ void _lv_disp_refr_timer(lv_timer_t * tmr)
return;
}
if(disp_refr->driver->direct_mode && disp_refr->driver->draw_ctx->color_format > _LV_COLOR_FORMAT_NATIVE_END) {
LV_LOG_WARN("In direct_mode the color_format must be LV_COLOR_FORMAT_NATIVE_...");
if(disp_refr->driver->direct_mode && disp_refr->driver->draw_ctx->color_format != LV_COLOR_FORMAT_NATIVE) {
LV_LOG_WARN("In direct_mode only LV_COLOR_FORMAT_NATIVE color format is supported");
return;
}

49
src/draw/sw/lv_draw_sw.c
View File

@@ -116,34 +116,37 @@ void lv_draw_sw_buffer_convert(lv_draw_ctx_t * draw_ctx)
if(draw_ctx->color_format == LV_COLOR_FORMAT_RGB565) return;
/*Make both the clip and buf area relative to the buf area*/
lv_area_t clip_area = *draw_ctx->clip_area;
lv_area_t buf_area = *draw_ctx->buf_area;
lv_area_move(&clip_area, -buf_area.x1, -buf_area.y1);
lv_area_move(&buf_area, -buf_area.x1, -buf_area.y1);
int32_t a_h_px = lv_area_get_height(&clip_area);
int32_t buf_w_px = lv_area_get_width(&buf_area);
if(draw_ctx->color_format == LV_COLOR_FORMAT_NATIVE_REVERSE) {
/*Consider the buffers as an area because in direct mode it might happen that
*only a small area is redrawn from a larger buffer */
int32_t buf_w_byte = buf_w_px * 2;
int32_t a_w_byte = lv_area_get_width(&clip_area) * 2;
/*Go to the first byte on buf*/
uint8_t * buf8 = draw_ctx->buf;
buf8 += clip_area.y1 * buf_w_byte + clip_area.x1 * 2;
uint32_t px_cnt = lv_area_get_size(draw_ctx->buf_area);
uint32_t u32_cnt = px_cnt / 2;
uint16_t * buf16 = draw_ctx->buf;
uint32_t * buf32 = (uint32_t *) buf16 ;
/*Swap all byte pairs*/
int32_t y;
for(y = 0; y < a_h_px; y++) {
int32_t x;
for(x = 0; x < a_w_byte - 1; x += 2) {
uint8_t tmp = buf8[x];
buf8[x] = buf8[x + 1];
buf8[x + 1] = tmp;
while(u32_cnt >= 8) {
buf32[0] = ((uint32_t)(buf32[0] & 0xff00ff00) >> 8) + ((uint32_t)(buf32[0] & 0x00ff00ff) << 8);
buf32[1] = ((uint32_t)(buf32[1] & 0xff00ff00) >> 8) + ((uint32_t)(buf32[1] & 0x00ff00ff) << 8);
buf32[2] = ((uint32_t)(buf32[2] & 0xff00ff00) >> 8) + ((uint32_t)(buf32[2] & 0x00ff00ff) << 8);
buf32[3] = ((uint32_t)(buf32[3] & 0xff00ff00) >> 8) + ((uint32_t)(buf32[3] & 0x00ff00ff) << 8);
buf32[4] = ((uint32_t)(buf32[4] & 0xff00ff00) >> 8) + ((uint32_t)(buf32[4] & 0x00ff00ff) << 8);
buf32[5] = ((uint32_t)(buf32[5] & 0xff00ff00) >> 8) + ((uint32_t)(buf32[5] & 0x00ff00ff) << 8);
buf32[6] = ((uint32_t)(buf32[6] & 0xff00ff00) >> 8) + ((uint32_t)(buf32[6] & 0x00ff00ff) << 8);
buf32[7] = ((uint32_t)(buf32[7] & 0xff00ff00) >> 8) + ((uint32_t)(buf32[7] & 0x00ff00ff) << 8);
buf32 += 8;
u32_cnt -= 8;
}
buf8 += buf_w_byte;
while(u32_cnt) {
*buf32 = ((uint32_t)(*buf32 & 0xff00ff00) >> 8) + ((uint32_t)(*buf32 & 0x00ff00ff) << 8);
buf32++;
u32_cnt--;
}
if(px_cnt & 0x1) {
uint32_t e = px_cnt - 1;
buf16[e] = ((buf16[e] & 0xff00) >> 8) + ((buf16[e] & 0x00ff) << 8);
}
return;