mirror of
https://github.com/MarlinFirmware/Marlin.git
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288 lines
6.6 KiB
C
288 lines
6.6 KiB
C
/*
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u8g_pbxh24.c
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x lines per page, horizontal, 24 bits per pixel (true color modes)
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Universal 8bit Graphics Library
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Copyright (c) 2013, olikraus@gmail.com
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or other
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materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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struct _u8g_pb_t
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{
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u8g_page_t p;
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u8g_uint_t width;
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void *buf;
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};
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typedef struct _u8g_pb_t u8g_pb_t;
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uint8_t u8g_index_color_xh16_buf[2*WIDTH*PAGE_HEIGHT] U8G_NOCOMMON ;
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u8g_pb_t u8g_index_color_xh16_pb = { {PAGE_HEIGHT, HEIGHT, 0, 0, 0}, WIDTH, u8g_index_color_xh16_buf};
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u8g_dev_t name = { dev_fn, &u8g_index_color_xh16_pb , com_fn }
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*/
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#include "u8g.h"
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/*
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#define WIDTH_BITS 7
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#define WIDTH (1<<WIDTH_BITS)
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#define PAGE_HEIGHT_BITS 3
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#define PAGE_HEIGHT (1<<PAGE_HEIGHT_BITS)
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*/
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void u8g_pbxh24_Clear(u8g_pb_t *b)
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{
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uint8_t *ptr = (uint8_t *)b->buf;
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uint8_t *end_ptr = ptr;
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uint8_t cnt = b->p.page_height;
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do
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{
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end_ptr += b->width*3;
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cnt--;
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} while( cnt > 0 );
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do
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{
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*ptr++ = 0;
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} while( ptr != end_ptr );
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}
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void u8g_pbxh24_Init(u8g_pb_t *b, void *buf, u8g_uint_t width)
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{
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b->buf = buf;
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b->width = width;
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u8g_pbxh24_Clear(b);
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}
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#ifdef OBSOLETE
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static void u8g_pbxh24_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t r, uint8_t g, uint8_t b)
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{
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uint16_t tmp;
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uint8_t *ptr = b->buf;
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y -= b->p.page_y0;
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tmp = y;
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tmp *= b->width;
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tmp += x;
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tmp *= 3;
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ptr += tmp;
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*ptr = r;
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ptr++;
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*ptr = g;
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ptr++;
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*ptr = b;
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}
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#endif
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/*
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intensity
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0..3 intensity value
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4 replace color
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*/
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static void u8g_pbxh24_set_tpixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t red, uint8_t green, uint8_t blue, uint8_t intensity)
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{
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uint16_t tmp;
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uint8_t *ptr = b->buf;
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if ( intensity == 0 )
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return;
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y -= b->p.page_y0;
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tmp = y;
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tmp *= b->width;
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tmp += x;
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tmp *= 3;
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ptr += tmp;
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if ( intensity == 4 )
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{
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*ptr = red;
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ptr++;
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*ptr = green;
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ptr++;
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*ptr = blue;
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return;
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}
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if ( intensity == 2 )
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{
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/*
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red = red/4 + red/2;
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green = green/4 + green/2;
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blue = blue/4 + blue/2;
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*/
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red >>= 1;
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green >>= 1;
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blue >>= 1;
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}
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else if ( intensity == 1 )
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{
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red >>= 2;
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green >>= 2;
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blue >>= 2;
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}
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if ( *ptr >= 255-red ) *ptr = 255;
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else *ptr += red;
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ptr++;
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if ( *ptr >= 255-green ) *ptr = 255;
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else *ptr += green;
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ptr++;
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if ( *ptr >= 255-blue ) *ptr = 255;
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else *ptr += blue;
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/*
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if ( *ptr < red ) *ptr = red;
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ptr++;
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if ( *ptr < green ) *ptr = green;
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ptr++;
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if ( *ptr < blue ) *ptr = blue;
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*/
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}
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void u8g_pbxh24_SetTPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel, uint8_t intensity)
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{
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if ( arg_pixel->y < b->p.page_y0 )
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return;
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if ( arg_pixel->y > b->p.page_y1 )
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return;
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if ( arg_pixel->x >= b->width )
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return;
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u8g_pbxh24_set_tpixel(b, arg_pixel->x, arg_pixel->y, arg_pixel->color, arg_pixel->hi_color, arg_pixel->blue, intensity);
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}
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void u8g_pbxh24_Set8Pixel(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
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{
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register uint8_t pixel = arg_pixel->pixel;
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u8g_uint_t dx = 0;
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u8g_uint_t dy = 0;
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switch( arg_pixel->dir )
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{
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case 0: dx++; break;
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case 1: dy++; break;
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case 2: dx--; break;
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case 3: dy--; break;
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}
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do
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{
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if ( pixel & 128 )
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u8g_pbxh24_SetTPixel(b, arg_pixel, 4);
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arg_pixel->x += dx;
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arg_pixel->y += dy;
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pixel <<= 1;
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} while( pixel != 0 );
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}
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void u8g_pbxh24_Set4TPixel(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
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{
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register uint8_t pixel = arg_pixel->pixel;
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u8g_uint_t dx = 0;
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u8g_uint_t dy = 0;
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switch( arg_pixel->dir )
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{
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case 0: dx++; break;
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case 1: dy++; break;
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case 2: dx--; break;
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case 3: dy--; break;
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}
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do
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{
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u8g_pbxh24_SetTPixel(b, arg_pixel, pixel >> 6);
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arg_pixel->x += dx;
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arg_pixel->y += dy;
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pixel <<= 2;
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} while( pixel != 0 );
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}
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uint8_t u8g_dev_pbxh24_base_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
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{
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u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
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switch(msg)
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{
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case U8G_DEV_MSG_SET_8PIXEL:
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if ( u8g_pb_Is8PixelVisible(pb, (u8g_dev_arg_pixel_t *)arg) )
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u8g_pbxh24_Set8Pixel(pb, (u8g_dev_arg_pixel_t *)arg);
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break;
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case U8G_DEV_MSG_SET_PIXEL:
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u8g_pbxh24_SetTPixel(pb, (u8g_dev_arg_pixel_t *)arg, 4);
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break;
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case U8G_DEV_MSG_SET_4TPIXEL:
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u8g_pbxh24_Set4TPixel(pb, (u8g_dev_arg_pixel_t *)arg);
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break;
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case U8G_DEV_MSG_SET_TPIXEL:
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u8g_pbxh24_SetTPixel(pb, (u8g_dev_arg_pixel_t *)arg, ((u8g_dev_arg_pixel_t *)arg)->pixel&3);
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break;
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case U8G_DEV_MSG_INIT:
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break;
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case U8G_DEV_MSG_STOP:
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break;
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case U8G_DEV_MSG_PAGE_FIRST:
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u8g_pbxh24_Clear(pb);
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u8g_page_First(&(pb->p));
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break;
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case U8G_DEV_MSG_PAGE_NEXT:
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if ( u8g_page_Next(&(pb->p)) == 0 )
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return 0;
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u8g_pbxh24_Clear(pb);
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break;
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#ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
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case U8G_DEV_MSG_IS_BBX_INTERSECTION:
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return u8g_pb_IsIntersection(pb, (u8g_dev_arg_bbx_t *)arg);
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#endif
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case U8G_DEV_MSG_GET_PAGE_BOX:
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u8g_pb_GetPageBox(pb, (u8g_box_t *)arg);
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break;
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case U8G_DEV_MSG_GET_WIDTH:
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*((u8g_uint_t *)arg) = pb->width;
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break;
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case U8G_DEV_MSG_GET_HEIGHT:
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*((u8g_uint_t *)arg) = pb->p.total_height;
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break;
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case U8G_DEV_MSG_SET_COLOR_ENTRY:
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break;
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case U8G_DEV_MSG_SET_XY_CB:
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break;
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case U8G_DEV_MSG_GET_MODE:
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return U8G_MODE_TRUECOLOR;
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}
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return 1;
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}
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