/* blit a dc to another dc */ static void rtgui_dc_buffer_blit(struct rtgui_dc *self, struct rtgui_point *dc_pt, struct rtgui_dc *dest, rtgui_rect_t *rect) { int pitch; rt_uint16_t rect_width, rect_height; struct rtgui_rect _rect, *dest_rect; struct rtgui_point dc_point; struct rtgui_dc_buffer *dc = (struct rtgui_dc_buffer *)self; if (rtgui_dc_get_visible(dest) == RT_FALSE) return; /* use the (0,0) origin point */ if (dc_pt == RT_NULL) dc_point = rtgui_empty_point; else { dc_point = *dc_pt; } rtgui_dc_get_rect(dest, &_rect); /* use the rect of dest dc */ if (rect == RT_NULL) { dest_rect = &_rect; } else { dest_rect = rect; if (dest_rect->x1 > _rect.x2 || dest_rect->y1 > _rect.y2) return; if (dest_rect->x1 < 0) { if (-dest_rect->x1 > dc->width) return; dc_point.x += -dest_rect->x1; dest_rect->x1 = 0; } if (dest_rect->y1 < 0) { if (-dest_rect->y1 > dc->height) return; dc_point.y += -dest_rect->y1; dest_rect->y1 = 0; } if (dest_rect->x2 > _rect.x2) dest_rect->x2 = _rect.x2; if (dest_rect->y2 > _rect.y2) dest_rect->y2 = _rect.y2; } if (dc_point.x > dc->width || dc_point.y > dc->height) return; /* get the minimal width and height */ rect_width = _UI_MIN(rtgui_rect_width(*dest_rect), dc->width - dc_point.x); rect_height = _UI_MIN(rtgui_rect_height(*dest_rect), dc->height - dc_point.y); if ((dest->type == RTGUI_DC_HW) || (dest->type == RTGUI_DC_CLIENT)) { int index; rt_uint8_t *line_ptr, *pixels; rtgui_blit_line_func blit_line; struct rtgui_graphic_driver *hw_driver; hw_driver = rtgui_graphic_driver_get_default(); /* prepare pixel line */ pixels = _dc_get_pixel(dc, dc_point.x, dc_point.y); if (hw_driver->bits_per_pixel == _dc_get_bits_per_pixel(dc)) { if (dest->type == RTGUI_DC_HW && hw_driver->framebuffer != RT_NULL) { rt_uint8_t *hw_pixels; struct rtgui_dc_hw *hw; hw = (struct rtgui_dc_hw*)dest; /* NOTES: the rect of DC is the logic coordination. * It should be converted to client */ if (dest_rect != &_rect) { /* use local rect */ _rect = *dest_rect; dest_rect = &_rect; } rtgui_rect_moveto(dest_rect, hw->owner->extent.x1, hw->owner->extent.y1); pitch = rtgui_color_get_bpp(hw_driver->pixel_format) * rect_width; hw_pixels = (rt_uint8_t*)(hw_driver->framebuffer + dest_rect->y1 * hw_driver->pitch + dest_rect->x1 * rtgui_color_get_bpp(hw_driver->pixel_format)); /* do the blit with memory copy */ for (index = 0; index < rect_height; index ++) { rt_memcpy(hw_pixels, pixels, pitch); pixels += dc->pitch; hw_pixels += hw_driver->pitch; } } else { /* it's the same bits per pixel, draw it directly */ for (index = dest_rect->y1; index < dest_rect->y1 + rect_height; index++) { dest->engine->blit_line(dest, dest_rect->x1, dest_rect->x1 + rect_width, index, pixels); pixels += dc->pitch; } } } else { struct rtgui_graphic_driver *hw_driver; hw_driver = rtgui_graphic_driver_get_default(); if ((dc->pixel_format == RTGRAPHIC_PIXEL_FORMAT_ARGB888) && (dest->type == RTGUI_DC_HW) && (hw_driver->framebuffer != RT_NULL) && (hw_driver->pixel_format == RTGRAPHIC_PIXEL_FORMAT_RGB565)) { /* do the fast ARGB to RGB565 blit */ struct rtgui_blit_info info; struct rtgui_widget *owner; /* blit source */ info.src = _dc_get_pixel(dc, dc_point.x, dc_point.y); info.src_fmt = dc->pixel_format; info.src_h = rect_height; info.src_w = rect_width; info.src_pitch = dc->pitch; info.src_skip = info.src_pitch - info.src_w * rtgui_color_get_bpp(dc->pixel_format); owner = ((struct rtgui_dc_hw*)dest)->owner; /* blit destination */ info.dst = (rt_uint8_t*)hw_driver->framebuffer; info.dst = info.dst + (owner->extent.y1 + dest_rect->y1) * hw_driver->pitch + (owner->extent.x1 + dest_rect->x1) * rtgui_color_get_bpp(hw_driver->pixel_format); info.dst_fmt = hw_driver->pixel_format; info.dst_h = rect_height; info.dst_w = rect_width; info.dst_pitch = hw_driver->pitch; info.dst_skip = info.dst_pitch - info.dst_w * rtgui_color_get_bpp(hw_driver->pixel_format); rtgui_blit(&info); } else { /* get blit line function */ blit_line = rtgui_blit_line_get(_UI_BITBYTES(hw_driver->bits_per_pixel), rtgui_color_get_bpp(dc->pixel_format)); /* calculate pitch */ pitch = rect_width * rtgui_color_get_bpp(dc->pixel_format); /* create line buffer */ line_ptr = (rt_uint8_t *) rtgui_malloc(rect_width * _UI_BITBYTES(hw_driver->bits_per_pixel)); /* draw each line */ for (index = dest_rect->y1; index < dest_rect->y1 + rect_height; index ++) { /* blit on line buffer */ blit_line(line_ptr, (rt_uint8_t *)pixels, pitch); pixels += dc->pitch; /* draw on hardware dc */ dest->engine->blit_line(dest, dest_rect->x1, dest_rect->x1 + rect_width, index, line_ptr); } /* release line buffer */ rtgui_free(line_ptr); } } } else if (dest->type == RTGUI_DC_BUFFER) { struct rtgui_dc_buffer *dest_dc = (struct rtgui_dc_buffer*)dest; if (dest_dc->pixel_format == dc->pixel_format && dest_dc->pixel_format == RTGRAPHIC_PIXEL_FORMAT_RGB565) { int index; rt_uint8_t *pixels, *dest_pixels; /* get pitch */ pitch = rect_width * rtgui_color_get_bpp(dc->pixel_format); pixels = _dc_get_pixel(dc, dc_point.x, dc_point.y); dest_pixels = _dc_get_pixel(dest_dc, dest_rect->x1, dest_rect->y1); for (index = 0; index < rect_height; index ++) { rt_memcpy(dest_pixels, pixels, pitch); pixels += dc->pitch; dest_pixels += dest_dc->pitch; } } else /* use rtgui_blit to handle buffer blit */ { /* do the fast ARGB to RGB565 blit */ struct rtgui_blit_info info; /* blit source */ info.src = _dc_get_pixel(dc, dc_point.x, dc_point.y); info.src_fmt = dc->pixel_format; info.src_h = rect_height; info.src_w = rect_width; info.src_pitch = dc->pitch; info.src_skip = info.src_pitch - info.src_w * rtgui_color_get_bpp(dc->pixel_format); /* blit destination */ info.dst = _dc_get_pixel(dest_dc, dest_rect->x1, dest_rect->y1); info.dst_fmt = dest_dc->pixel_format; info.dst_h = rect_height; info.dst_w = rect_width; info.dst_pitch = dest_dc->pitch; info.dst_skip = info.dst_pitch - info.dst_w * rtgui_color_get_bpp(dest_dc->pixel_format); rtgui_blit(&info); } } }
/* blit a dc to a hardware dc */ static void rtgui_dc_buffer_blit(struct rtgui_dc *self, struct rtgui_point *dc_point, struct rtgui_dc *dest, rtgui_rect_t *rect) { int pitch; rt_uint16_t rect_width, rect_height; struct rtgui_dc_buffer *dc = (struct rtgui_dc_buffer *)self; if (dc_point == RT_NULL) dc_point = &rtgui_empty_point; if (rtgui_dc_get_visible(dest) == RT_FALSE) return; /* get the minimal width and height */ rect_width = _UI_MIN(rtgui_rect_width(*rect), dc->width - dc_point->x); rect_height = _UI_MIN(rtgui_rect_height(*rect), dc->height - dc_point->y); if ((dest->type == RTGUI_DC_HW) || (dest->type == RTGUI_DC_CLIENT)) { int index; rt_uint8_t *line_ptr, *pixels; rtgui_blit_line_func blit_line; struct rtgui_graphic_driver *hw_driver; hw_driver = rtgui_graphic_driver_get_default(); /* prepare pixel line */ pixels = _dc_get_pixel(dc, dc_point->x, dc_point->y); if (hw_driver->bits_per_pixel == _dc_get_bits_per_pixel(dc)) { if (dest->type == RTGUI_DC_HW && hw_driver->framebuffer != RT_NULL) { rt_uint8_t *hw_pixels; pitch = rtgui_color_get_bpp(hw_driver->pixel_format) * rect_width; hw_pixels = (rt_uint8_t*)(hw_driver->framebuffer + rect->y1 * hw_driver->pitch + rect->x1 * rtgui_color_get_bpp(hw_driver->pixel_format)); for (index = 0; index < rect_height; index ++) { memcpy(hw_pixels, pixels, pitch); pixels += dc->pitch; hw_pixels += hw_driver->pitch; } } else { /* it's the same bits per pixel, draw it directly */ for (index = rect->y1; index < rect->y1 + rect_height; index++) { dest->engine->blit_line(dest, rect->x1, rect->x1 + rect_width, index, pixels); pixels += dc->pitch; } } } else { /* get blit line function */ blit_line = rtgui_blit_line_get(_UI_BITBYTES(hw_driver->bits_per_pixel), rtgui_color_get_bpp(dc->pixel_format)); /* calculate pitch */ pitch = rect_width * rtgui_color_get_bpp(hw_driver->pixel_format); /* create line buffer */ line_ptr = (rt_uint8_t *) rtgui_malloc(rect_width * _UI_BITBYTES(hw_driver->bits_per_pixel)); /* draw each line */ for (index = rect->y1; index < rect->y1 + rect_height; index ++) { /* blit on line buffer */ blit_line(line_ptr, (rt_uint8_t *)pixels, pitch); pixels += dc->pitch; /* draw on hardware dc */ dest->engine->blit_line(dest, rect->x1, rect->x1 + rect_width, index, line_ptr); } /* release line buffer */ rtgui_free(line_ptr); } } else if (dest->type == RTGUI_DC_BUFFER) { struct rtgui_dc_buffer *dest_dc = (struct rtgui_dc_buffer*)dest; if (dest_dc->pixel_format == dc->pixel_format) { int index; rt_uint8_t *pixels, *dest_pixels; /* get pitch */ pitch = rect_width * rtgui_color_get_bpp(dc->pixel_format); pixels = _dc_get_pixel(dc, dc_point->x, dc_point->y); dest_pixels = _dc_get_pixel(dest_dc, rect->x1, rect->y1); for (index = 0; index < rect_height; index ++) { memcpy(dest_pixels, pixels, pitch); pixels += dc->pitch; dest_pixels += dest_dc->pitch; } } } }