void rtgui_dc_trans_get_new_wh(struct rtgui_dc_trans *dct,
int *new_wp,
int *new_hp)
{
struct rtgui_rect rect;
struct rtgui_point topleft, topright, bottomright;
RT_ASSERT(dct);
if (!new_wp && !new_hp)
return;
rtgui_dc_get_rect(dct->owner, &rect);
/* We ignore the movement components in the matrix. */
/* Transform result of (0, h). */
rtgui_matrix_mul_point_nomove(&topleft, 0, rect.y2,
&dct->m);
/* Transform result of (w, h). */
rtgui_matrix_mul_point_nomove(&topright, rect.x2, rect.y2,
&dct->m);
/* Transform result of (w, 0). */
rtgui_matrix_mul_point_nomove(&bottomright,
rect.x2, 0, &dct->m);
/* Transform result of (0, 0) is always (0, 0). */
#define NORMALIZE(x) do { if (x < 0) x = 0; } while (0)
if (new_wp)
{
int neww;
/* Ignore the nagtive parts. */
NORMALIZE(topright.x);
NORMALIZE(topleft.x);
NORMALIZE(bottomright.x);
neww = _UI_MAX(topright.x, _UI_ABS(topleft.x - bottomright.x))
+ dct->m.m[4] + 1;
NORMALIZE(neww);
*new_wp = neww;
}
if (new_hp)
{
int newh;
NORMALIZE(topright.y);
NORMALIZE(topleft.y);
NORMALIZE(bottomright.y);
newh = _UI_MAX(topright.y, _UI_ABS(topleft.y - bottomright.y))
+ dct->m.m[5] + 1;
NORMALIZE(newh);
*new_hp = newh;
}
#undef NORMALIZE
}
static void _rtgui_plot_curve_onpaint(
struct rtgui_dc *dc,
struct rtgui_plot *plot,
struct rtgui_plot_curve *curve,
rt_uint16_t start_idx,
rt_uint16_t stop_idx)
{
struct rtgui_rect rect;
rt_uint16_t height;
int last_x, last_y;
rtgui_color_t old_color;
rtgui_plot_curve_dtype *x_data, *y_data;
rtgui_dc_get_rect(dc, &rect);
height = rtgui_rect_height(rect);
old_color = RTGUI_DC_FC(dc);
RTGUI_DC_FC(dc) = curve->color;
x_data = rtgui_plot_curve_get_x(curve);
y_data = rtgui_plot_curve_get_y(curve);
if (x_data)
{
rt_size_t i;
last_x = _rtgui_plot_curve_calc_x(plot, x_data[start_idx]);
last_y = _rtgui_plot_curve_calc_y(plot, y_data[start_idx], height);
for (i = start_idx + 1; i < stop_idx; i++)
{
int cur_x = _rtgui_plot_curve_calc_x(plot, x_data[i]);
int cur_y = _rtgui_plot_curve_calc_y(plot, y_data[i], height);
rtgui_dc_draw_line(dc,
last_x, last_y,
cur_x, cur_y);
last_x = cur_x;
last_y = cur_y;
}
}
else
{
rt_size_t i;
last_x = _rtgui_plot_curve_calc_x(plot, start_idx);
last_y = _rtgui_plot_curve_calc_y(plot, y_data[start_idx], height);
for (i = start_idx + 1; i < stop_idx; i++)
{
int cur_x = _rtgui_plot_curve_calc_x(plot, i);
int cur_y = _rtgui_plot_curve_calc_y(plot, y_data[i], height);
rtgui_dc_draw_line(dc,
last_x, last_y,
cur_x, cur_y);
last_x = cur_x;
last_y = cur_y;
}
}
RTGUI_DC_FC(dc) = old_color;
}
static void rtgui_dc_buffer_fill_rect(struct rtgui_dc *self, struct rtgui_rect *dst_rect)
{
struct rtgui_dc_buffer *dst;
unsigned r, g, b, a;
rtgui_rect_t _r, *rect;
RT_ASSERT(self);
if (dst_rect == RT_NULL) rtgui_dc_get_rect(self, &_r);
else _r = *dst_rect;
dst = (struct rtgui_dc_buffer *)self;
if (_r.x2 < 0 || _r.y2 < 0) return; /* out of rect */
/* parameter checking */
if (_r.x1 >= dst->width)
return;
else if (_r.x1 < 0)
_r.x1 = 0;
if (_r.x2 > dst->width)
_r.x2 = dst->width;
if (_r.y1 >= dst->height)
return;
else if (_r.y1 < 0)
_r.y1 = 0;
if (_r.y2 > dst->height)
_r.y2 = dst->height;
rect = &_r;
r = RTGUI_RGB_R(dst->gc.background);
g = RTGUI_RGB_G(dst->gc.background);
b = RTGUI_RGB_B(dst->gc.background);
a = RTGUI_RGB_A(dst->gc.background);
switch (dst->pixel_format)
{
case RTGRAPHIC_PIXEL_FORMAT_RGB565:
FILLRECT(rt_uint16_t, DRAW_SETPIXEL_RGB565);
break;
case RTGRAPHIC_PIXEL_FORMAT_BGR565:
FILLRECT(rt_uint16_t, DRAW_SETPIXEL_BGR565);
break;
case RTGRAPHIC_PIXEL_FORMAT_RGB888:
FILLRECT(rt_uint32_t, DRAW_SETPIXEL_RGB888);
break;
case RTGRAPHIC_PIXEL_FORMAT_ARGB888:
FILLRECT(rt_uint32_t, DRAW_SETPIXEL_ARGB8888);
break;
}
}
/* 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 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);
}
