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Diff: u8glibARM/u8g_pb16v2.c
- Revision:
- 2:6cd3b0947188
- Parent:
- 1:0e75de2a5d21
- Child:
- 3:4cd9171ba989
--- a/u8glibARM/u8g_pb16v2.c Mon Jun 13 02:21:11 2016 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,173 +0,0 @@
-/*
-
- u8g_pb16v2.c
-
- 16 bit height 2 bit per pixel page buffer
- byte has vertical orientation
-
- Universal 8bit Graphics Library
-
- Copyright (c) 2012, olikraus@gmail.com
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without modification,
- are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice, this list
- of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above copyright notice, this
- list of conditions and the following disclaimer in the documentation and/or other
- materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-*/
-
-#include "u8g.h"
-#include <string.h>
-
-
-void u8g_pb16v2_Clear(u8g_pb_t *b)
-{
- uint8_t *ptr = (uint8_t *)b->buf;
- uint8_t *end_ptr = ptr;
-
- /* two bits per pixel, 16 bits height --> 8 pixel --> 4 pixel per byte */
- end_ptr += b->width;
- end_ptr += b->width;
-
- do
- {
- *ptr++ = 0;
- } while( ptr != end_ptr );
-}
-
-void u8g_pb16v2Init(u8g_pb_t *b, void *buf, u8g_uint_t width)
-{
- b->buf = buf;
- b->width = width;
- u8g_pb16v2_Clear(b);
-}
-
-void u8g_pb16v2_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index)
-{
- register uint8_t mask;
- uint8_t *ptr = b->buf;
- y -= b->p.page_y0;
- if ( y >= 4 )
- {
- ptr += b->width;
- }
- mask = 0x03;
- y &= 0x03;
- y <<= 1;
- mask <<= y;
- mask ^=0xff;
- color_index &= 3;
- color_index <<= y;
- ptr += x;
- *ptr &= mask;
- *ptr |= color_index;
-}
-
-
-void u8g_pb16v2_SetPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel)
-{
- if ( arg_pixel->y < b->p.page_y0 )
- return;
- if ( arg_pixel->y > b->p.page_y1 )
- return;
- if ( arg_pixel->x >= b->width )
- return;
- u8g_pb16v2_set_pixel(b, arg_pixel->x, arg_pixel->y, arg_pixel->color);
-}
-
-
-void u8g_pb16v2_Set8PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
-{
- register uint8_t pixel = arg_pixel->pixel;
- do
- {
- if ( pixel & 128 )
- {
- u8g_pb16v2_SetPixel(b, arg_pixel);
- }
- switch( arg_pixel->dir )
- {
- case 0: arg_pixel->x++; break;
- case 1: arg_pixel->y++; break;
- case 2: arg_pixel->x--; break;
- case 3: arg_pixel->y--; break;
- }
- pixel <<= 1;
- } while( pixel != 0 );
-}
-
-
-
-uint8_t u8g_dev_pb16v2_base_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
-{
- u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
- switch(msg)
- {
- case U8G_DEV_MSG_SET_8PIXEL:
- if ( u8g_pb_Is8PixelVisible(pb, (u8g_dev_arg_pixel_t *)arg) )
- {
- u8g_pb16v2_Set8PixelStd(pb, (u8g_dev_arg_pixel_t *)arg);
- }
- break;
- case U8G_DEV_MSG_SET_PIXEL:
- u8g_pb16v2_SetPixel(pb, (u8g_dev_arg_pixel_t *)arg);
- break;
- case U8G_DEV_MSG_INIT:
- break;
- case U8G_DEV_MSG_STOP:
- break;
- case U8G_DEV_MSG_PAGE_FIRST:
- u8g_pb16v2_Clear(pb);
- u8g_page_First(&(pb->p));
- break;
- case U8G_DEV_MSG_PAGE_NEXT:
- if ( u8g_page_Next(&(pb->p)) == 0 )
- return 0;
- u8g_pb16v2_Clear(pb);
- break;
-#ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
- case U8G_DEV_MSG_IS_BBX_INTERSECTION:
- return u8g_pb_IsIntersection(pb, (u8g_dev_arg_bbx_t *)arg);
-#endif
- case U8G_DEV_MSG_GET_PAGE_BOX:
- u8g_pb_GetPageBox(pb, (u8g_box_t *)arg);
- break;
- case U8G_DEV_MSG_GET_WIDTH:
- *((u8g_uint_t *)arg) = pb->width;
- break;
- case U8G_DEV_MSG_GET_HEIGHT:
- *((u8g_uint_t *)arg) = pb->p.total_height;
- break;
- case U8G_DEV_MSG_SET_COLOR_ENTRY:
- break;
- case U8G_DEV_MSG_SET_XY_CB:
- break;
- case U8G_DEV_MSG_GET_MODE:
- return U8G_MODE_GRAY2BIT;
- }
- return 1;
-}
-
-
-