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/*
* File : dc_hw.c
* This file is part of RT-Thread GUI Engine
* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2009-10-16 Bernard first version
*/
#include <rtgui/dc.h>
#include <rtgui/driver.h>
#include <rtgui/rtgui_system.h>
#include <rtgui/rtgui_app.h>
#include <rtgui/rtgui_server.h>
#include <rtgui/widgets/container.h>
#include <rtgui/widgets/window.h>
#define _int_swap(x, y) do {x ^= y; y ^= x; x ^= y;} while (0)
static void rtgui_dc_hw_draw_point(struct rtgui_dc *dc, int x, int y);
static void rtgui_dc_hw_draw_color_point(struct rtgui_dc *dc, int x, int y, rtgui_color_t color);
static void rtgui_dc_hw_draw_hline(struct rtgui_dc *dc, int x1, int x2, int y);
static void rtgui_dc_hw_draw_vline(struct rtgui_dc *dc, int x, int y1, int y2);
static void rtgui_dc_hw_fill_rect(struct rtgui_dc *dc, rtgui_rect_t *rect);
static void rtgui_dc_hw_blit_line(struct rtgui_dc *self, int x1, int x2, int y, rt_uint8_t *line_data);
static void rtgui_dc_hw_blit(struct rtgui_dc *dc, struct rtgui_point *dc_point, struct rtgui_dc *dest, rtgui_rect_t *rect);
static rt_bool_t rtgui_dc_hw_fini(struct rtgui_dc *dc);
const struct rtgui_dc_engine dc_hw_engine =
{
rtgui_dc_hw_draw_point,
rtgui_dc_hw_draw_color_point,
rtgui_dc_hw_draw_vline,
rtgui_dc_hw_draw_hline,
rtgui_dc_hw_fill_rect,
rtgui_dc_hw_blit_line,
rtgui_dc_hw_blit,
rtgui_dc_hw_fini,
};
struct rtgui_dc *rtgui_dc_hw_create(rtgui_widget_t *owner)
{
struct rtgui_dc_hw *dc;
/* adjudge owner */
if (owner == RT_NULL || owner->toplevel == RT_NULL) return RT_NULL;
/* create DC */
dc = (struct rtgui_dc_hw *) rtgui_malloc(sizeof(struct rtgui_dc_hw));
if (dc)
{
dc->parent.type = RTGUI_DC_HW;
dc->parent.engine = &dc_hw_engine;
dc->owner = owner;
dc->hw_driver = rtgui_graphic_driver_get_default();
return &(dc->parent);
}
return RT_NULL;
}
static rt_bool_t rtgui_dc_hw_fini(struct rtgui_dc *dc)
{
if (dc == RT_NULL || dc->type != RTGUI_DC_HW) return RT_FALSE;
/* release hardware dc */
rtgui_free(dc);
return RT_TRUE;
}
/*
* draw a logic point on device
*/
static void rtgui_dc_hw_draw_point(struct rtgui_dc *self, int x, int y)
{
struct rtgui_dc_hw *dc;
RT_ASSERT(self != RT_NULL);
dc = (struct rtgui_dc_hw *) self;
if (x < 0 || y < 0)
return;
x = x + dc->owner->extent.x1;
if (x >= dc->owner->extent.x2)
return;
y = y + dc->owner->extent.y1;
if (y >= dc->owner->extent.y2)
return;
/* draw this point */
dc->hw_driver->ops->set_pixel(&(dc->owner->gc.foreground), x, y);
}
static void rtgui_dc_hw_draw_color_point(struct rtgui_dc *self, int x, int y, rtgui_color_t color)
{
struct rtgui_dc_hw *dc;
RT_ASSERT(self != RT_NULL);
dc = (struct rtgui_dc_hw *) self;
if (x < 0 || y < 0)
return;
x = x + dc->owner->extent.x1;
if (x >= dc->owner->extent.x2)
return;
y = y + dc->owner->extent.y1;
if (y >= dc->owner->extent.y2)
return;
/* draw this point */
dc->hw_driver->ops->set_pixel(&color, x, y);
}
/*
* draw a logic vertical line on device
*/
static void rtgui_dc_hw_draw_vline(struct rtgui_dc *self, int x, int y1, int y2)
{
struct rtgui_dc_hw *dc;
RT_ASSERT(self != RT_NULL);
dc = (struct rtgui_dc_hw *) self;
if (x < 0)
return;
x = x + dc->owner->extent.x1;
if (x >= dc->owner->extent.x2)
return;
y1 = y1 + dc->owner->extent.y1;
y2 = y2 + dc->owner->extent.y1;
if (y1 > y2)
_int_swap(y1, y2);
if (y1 > dc->owner->extent.y2 || y2 < dc->owner->extent.y1)
return;
if (y1 < dc->owner->extent.y1)
y1 = dc->owner->extent.y1;
if (y2 > dc->owner->extent.y2)
y2 = dc->owner->extent.y2;
/* draw vline */
dc->hw_driver->ops->draw_vline(&(dc->owner->gc.foreground), x, y1, y2);
}
/*
* draw a logic horizontal line on device
*/
static void rtgui_dc_hw_draw_hline(struct rtgui_dc *self, int x1, int x2, int y)
{
struct rtgui_dc_hw *dc;
RT_ASSERT(self != RT_NULL);
dc = (struct rtgui_dc_hw *) self;
if (y < 0)
return;
y = y + dc->owner->extent.y1;
if (y >= dc->owner->extent.y2)
return;
/* convert logic to device */
x1 = x1 + dc->owner->extent.x1;
x2 = x2 + dc->owner->extent.x1;
if (x1 > x2)
_int_swap(x1, x2);
if (x1 > dc->owner->extent.x2 || x2 < dc->owner->extent.x1)
return;
if (x1 < dc->owner->extent.x1)
x1 = dc->owner->extent.x1;
if (x2 > dc->owner->extent.x2)
x2 = dc->owner->extent.x2;
/* draw hline */
dc->hw_driver->ops->draw_hline(&(dc->owner->gc.foreground), x1, x2, y);
}
static void rtgui_dc_hw_fill_rect(struct rtgui_dc *self, struct rtgui_rect *rect)
{
rtgui_color_t color;
register rt_base_t y1, y2, x1, x2;
struct rtgui_dc_hw *dc;
RT_ASSERT(self != RT_NULL);
RT_ASSERT(rect);
dc = (struct rtgui_dc_hw *) self;
/* get background color */
color = dc->owner->gc.background;
/* convert logic to device */
x1 = rect->x1 + dc->owner->extent.x1;
if (x1 > dc->owner->extent.x2)
return;
if (x1 < dc->owner->extent.x1)
x1 = dc->owner->extent.x1;
if (x1 < 0)
x1 = 0;
x2 = rect->x2 + dc->owner->extent.x1;
if (x2 < dc->owner->extent.x1)
return;
if (x2 > dc->owner->extent.x2)
x2 = dc->owner->extent.x2;
if (x2 > dc->hw_driver->width)
x2 = dc->hw_driver->width;
y1 = rect->y1 + dc->owner->extent.y1;
if (y1 > dc->owner->extent.y2)
return;
if (y1 < dc->owner->extent.y1)
y1 = dc->owner->extent.y1;
if (y1 < 0)
y1 = 0;
y2 = rect->y2 + dc->owner->extent.y1;
if (y2 < dc->owner->extent.y1)
return;
if (y2 > dc->owner->extent.y2)
y2 = dc->owner->extent.y2;
if (y2 > dc->hw_driver->height)
y2 = dc->hw_driver->height;
/* fill rect */
for (; y1 < y2; y1++)
{
dc->hw_driver->ops->draw_hline(&color, x1, x2, y1);
}
}
static void rtgui_dc_hw_blit_line(struct rtgui_dc *self, int x1, int x2, int y, rt_uint8_t *line_data)
{
struct rtgui_dc_hw *dc;
RT_ASSERT(self != RT_NULL);
dc = (struct rtgui_dc_hw *) self;
/* convert logic to device */
if (y < 0)
return;
y = y + dc->owner->extent.y1;
if (y > dc->owner->extent.y2)
return;
x1 = x1 + dc->owner->extent.x1;
x2 = x2 + dc->owner->extent.x1;
if (x1 > x2)
_int_swap(x1, x2);
if (x1 > dc->owner->extent.x2 || x2 < dc->owner->extent.x1)
return;
if (x1 < dc->owner->extent.x1)
x1 = dc->owner->extent.x1;
if (x2 > dc->owner->extent.x2)
x2 = dc->owner->extent.x2;
dc->hw_driver->ops->draw_raw_hline(line_data, x1, x2, y);
}
static void rtgui_dc_hw_blit(struct rtgui_dc *dc,
struct rtgui_point *dc_point,
struct rtgui_dc *dest,
rtgui_rect_t *rect)
{
/* not blit in hardware dc */
return ;
}
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