static void rtgui_dc_client_blit_line (struct rtgui_dc* self, int x1, int x2, int y, rt_uint8_t* line_data)
{
register rt_base_t index;
rtgui_widget_t *owner;
if (self == RT_NULL) return;
/* get owner */
owner = RTGUI_CONTAINER_OF(self, struct rtgui_widget, dc_type);
if (!RTGUI_WIDGET_IS_DC_VISIBLE(owner)) return;
/* convert logic to device */
x1 = x1 + owner->extent.x1;
x2 = x2 + owner->extent.x1;
if (x1 > x2) _int_swap(x1, x2);
y = y + owner->extent.y1;
if (rtgui_region_is_flat(&(owner->clip)) == RT_EOK)
{
rtgui_rect_t* prect;
int offset = 0;
prect = &(owner->clip.extents);
/* calculate vline intersect */
if (prect->y1 > y || prect->y2 <= y ) return;
if (prect->x2 <= x1 || prect->x1 > x2) return;
if (prect->x1 > x1) x1 = prect->x1;
if (prect->x2 < x2) x2 = prect->x2;
/* patch note:
* We need to adjust the offset when update widget clip!
* Of course at ordinary times for 0. General */
offset = owner->clip.extents.x1 - owner->extent.x1;
offset = offset * hw_driver->bits_per_pixel/8;
/* draw hline */
hw_driver->ops->draw_raw_hline(line_data+offset, x1, x2, y);
}
else for (index = 0; index < rtgui_region_num_rects(&(owner->clip)); index ++)
{
rtgui_rect_t* prect;
register rt_base_t draw_x1, draw_x2;
prect = ((rtgui_rect_t *)(owner->clip.data + index + 1));
draw_x1 = x1;
draw_x2 = x2;
/* calculate hline clip */
if (prect->y1 > y || prect->y2 <= y ) continue;
if (prect->x2 <= x1 || prect->x1 > x2) continue;
if (prect->x1 > x1) draw_x1 = prect->x1;
if (prect->x2 < x2) draw_x2 = prect->x2;
/* draw hline */
hw_driver->ops->draw_raw_hline(line_data + (draw_x1 - x1) * hw_driver->bits_per_pixel/8, draw_x1, draw_x2, y);
}
}
/*
* draw a logic horizontal line on device
*/
static void rtgui_dc_client_draw_hline(struct rtgui_dc* self, int x1, int x2, int y)
{
register rt_base_t index;
rtgui_widget_t *owner;
if (self == RT_NULL) return;
/* get owner */
owner = RTGUI_CONTAINER_OF(self, struct rtgui_widget, dc_type);
if (!RTGUI_WIDGET_IS_DC_VISIBLE(owner)) return;
/* convert logic to device */
x1 = x1 + owner->extent.x1;
x2 = x2 + owner->extent.x1;
if (x1 > x2) _int_swap(x1, x2);
y = y + owner->extent.y1;
if (owner->clip.data == RT_NULL)
{
rtgui_rect_t* prect;
prect = &(owner->clip.extents);
/* calculate vline intersect */
if (prect->y1 > y || prect->y2 <= y ) return;
if (prect->x2 <= x1 || prect->x1 > x2) return;
if (prect->x1 > x1) x1 = prect->x1;
if (prect->x2 < x2) x2 = prect->x2;
/* draw hline */
hw_driver->ops->draw_hline(&(owner->gc.foreground), x1, x2, y);
}
else for (index = 0; index < rtgui_region_num_rects(&(owner->clip)); index ++)
{
rtgui_rect_t* prect;
register rt_base_t draw_x1, draw_x2;
prect = ((rtgui_rect_t *)(owner->clip.data + index + 1));
draw_x1 = x1;
draw_x2 = x2;
/* calculate hline clip */
if (prect->y1 > y || prect->y2 <= y ) continue;
if (prect->x2 <= x1 || prect->x1 > x2) continue;
if (prect->x1 > x1) draw_x1 = prect->x1;
if (prect->x2 < x2) draw_x2 = prect->x2;
/* draw hline */
hw_driver->ops->draw_hline(&(owner->gc.foreground), draw_x1, draw_x2, y);
}
}
/*
* draw a logic vertical line on device
*/
static void rtgui_dc_client_draw_vline(struct rtgui_dc* self, int x, int y1, int y2)
{
register rt_base_t index;
rtgui_widget_t *owner;
if (self == RT_NULL) return;
/* get owner */
owner = RTGUI_CONTAINER_OF(self, struct rtgui_widget, dc_type);
if (!RTGUI_WIDGET_IS_DC_VISIBLE(owner)) return;
x = x + owner->extent.x1;
y1 = y1 + owner->extent.y1;
y2 = y2 + owner->extent.y1;
if (y1 > y2) _int_swap(y1, y2);
if (owner->clip.data == RT_NULL)
{
rtgui_rect_t* prect;
prect = &(owner->clip.extents);
/* calculate vline intersect */
if (prect->x1 > x || prect->x2 <= x) return;
if (prect->y2 <= y1 || prect->y1 > y2) return;
if (prect->y1 > y1) y1 = prect->y1;
if (prect->y2 < y2) y2 = prect->y2;
/* draw vline */
hw_driver->ops->draw_vline(&(owner->gc.foreground), x, y1, y2);
}
else for (index = 0; index < rtgui_region_num_rects(&(owner->clip)); index ++)
{
rtgui_rect_t* prect;
register rt_base_t draw_y1, draw_y2;
prect = ((rtgui_rect_t *)(owner->clip.data + index + 1));
draw_y1 = y1;
draw_y2 = y2;
/* calculate vline clip */
if (prect->x1 > x || prect->x2 <= x) continue;
if (prect->y2 <= y1 || prect->y1 > y2) continue;
if (prect->y1 > y1) draw_y1 = prect->y1;
if (prect->y2 < y2) draw_y2 = prect->y2;
/* draw vline */
hw_driver->ops->draw_vline(&(owner->gc.foreground), x, draw_y1, draw_y2);
}
}
/* 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 (dest_rect->x2 < dest_rect->x1 || dest_rect->y2 < dest_rect->y1) return;
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 (dest->type == RTGUI_DC_HW && hw_driver->framebuffer != RT_NULL)
{
/* use rtgui_blit */
struct rtgui_blit_info info = { 0 };
struct rtgui_widget *owner;
if (self->type == RTGUI_DC_BUFFER)
info.a = dc->pixel_alpha;
else
info.a = 255;
/* 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 if (dest->type == RTGUI_DC_CLIENT&& hw_driver->framebuffer != RT_NULL)
{
/* use rtgui_blit */
rt_uint8_t bpp, hw_bpp;
struct rtgui_blit_info info = { 0 };
struct rtgui_widget *owner;
struct rtgui_region dest_region;
struct rtgui_rect dest_extent;
int num_rects;
struct rtgui_rect *rects;
/* get owner */
owner = RTGUI_CONTAINER_OF(dest, struct rtgui_widget, dc_type);
dest_extent = *dest_rect;
rtgui_widget_rect_to_device(owner, &dest_extent);
rtgui_region_init_with_extents(&dest_region, &dest_extent);
rtgui_region_intersect_rect(&dest_region, &(owner->clip), &dest_extent);
bpp = rtgui_color_get_bpp(dc->pixel_format);
hw_bpp = rtgui_color_get_bpp(hw_driver->pixel_format);
num_rects = rtgui_region_num_rects(&dest_region);
rects = rtgui_region_rects(&dest_region);
/* common info */
if (self->type == RTGUI_DC_BUFFER)
info.a = dc->pixel_alpha;
else
info.a = 255;
info.src_fmt = dc->pixel_format;
info.src_pitch = dc->pitch;
info.dst_fmt = hw_driver->pixel_format;
info.dst_pitch = hw_driver->pitch;
for (index = 0; index < num_rects; index ++)
{
struct rtgui_rect *r = &rects[index];
/* blit source */
info.src = _dc_get_pixel(dc, dc_point.x + (r->x1 - dest_extent.x1),
dc_point.y + (r->y1 - dest_extent.y1));
info.src_h = rtgui_rect_height(*r);
info.src_w = rtgui_rect_width(*r);
info.src_skip = info.src_pitch - info.src_w * bpp;
/* blit destination */
info.dst = (rt_uint8_t*)hw_driver->framebuffer + r->y1 * hw_driver->pitch +
r->x1 * hw_bpp;
info.dst_h = rtgui_rect_height(*r);
info.dst_w = rtgui_rect_width(*r);
info.dst_skip = info.dst_pitch - info.dst_w * hw_bpp;
rtgui_blit(&info);
}
rtgui_region_fini(&dest_region);
}
