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- /*
- u8g2_setup.c
- Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
- Copyright (c) 2016, 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 "u8g2.h"
- #include <string.h>
- #include <assert.h>
- /*============================================*/
- #ifdef U8G2_WITH_CLIP_WINDOW_SUPPORT
- void u8g2_SetMaxClipWindow(u8g2_t *u8g2)
- {
- u8g2->clip_x0 = 0;
- u8g2->clip_y0 = 0;
- u8g2->clip_x1 = (u8g2_uint_t)~(u8g2_uint_t)0;
- u8g2->clip_y1 = (u8g2_uint_t)~(u8g2_uint_t)0;
-
- u8g2->cb->update_page_win(u8g2);
- }
- void u8g2_SetClipWindow(u8g2_t *u8g2, u8g2_uint_t clip_x0, u8g2_uint_t clip_y0, u8g2_uint_t clip_x1, u8g2_uint_t clip_y1 )
- {
- u8g2->clip_x0 = clip_x0;
- u8g2->clip_y0 = clip_y0;
- u8g2->clip_x1 = clip_x1;
- u8g2->clip_y1 = clip_y1;
- u8g2->cb->update_page_win(u8g2);
- }
- #endif
- /*============================================*/
- /*
- This procedure is called after setting up the display (u8x8 structure).
- --> This is the central init procedure for u8g2 object
- */
- void u8g2_SetupBuffer(u8g2_t *u8g2, uint8_t *buf, uint8_t tile_buf_height, u8g2_draw_ll_hvline_cb ll_hvline_cb, const u8g2_cb_t *u8g2_cb)
- {
- u8g2->font = NULL;
- //u8g2->kerning = NULL;
- //u8g2->get_kerning_cb = u8g2_GetNullKerning;
-
- //u8g2->ll_hvline = u8g2_ll_hvline_vertical_top_lsb;
- u8g2->ll_hvline = ll_hvline_cb;
-
- u8g2->tile_buf_ptr = buf;
- u8g2->tile_buf_height = tile_buf_height;
-
- u8g2->tile_curr_row = 0;
-
- u8g2->font_decode.is_transparent = 0; /* issue 443 */
- u8g2->bitmap_transparency = 0;
-
- u8g2->draw_color = 1;
- u8g2->is_auto_page_clear = 1;
-
- u8g2->cb = u8g2_cb;
- u8g2->cb->update_dimension(u8g2);
- #ifdef U8G2_WITH_CLIP_WINDOW_SUPPORT
- u8g2_SetMaxClipWindow(u8g2); /* assign a clip window and call the update() procedure */
- #else
- u8g2->cb->update_page_win(u8g2);
- #endif
- u8g2_SetFontPosBaseline(u8g2); /* issue 195 */
-
- #ifdef U8G2_WITH_FONT_ROTATION
- u8g2->font_decode.dir = 0;
- #endif
- }
- /*
- Usually the display rotation is set initially, but it could be done later also
- u8g2_cb can be U8G2_R0..U8G2_R3
- */
- void u8g2_SetDisplayRotation(u8g2_t *u8g2, const u8g2_cb_t *u8g2_cb)
- {
- u8g2->cb = u8g2_cb;
- u8g2->cb->update_dimension(u8g2);
- u8g2->cb->update_page_win(u8g2);
- }
- /*============================================*/
- void u8g2_SendF(u8g2_t * u8g2, const char *fmt, ...)
- {
- va_list va;
- va_start(va, fmt);
- u8x8_cad_vsendf(u8g2_GetU8x8(u8g2), fmt, va);
- va_end(va);
- }
- /*============================================*/
- /*
- update dimension:
- calculate the following variables:
- u8g2_uint_t buf_x0; left corner of the buffer
- u8g2_uint_t buf_x1; right corner of the buffer (excluded)
- u8g2_uint_t buf_y0;
- u8g2_uint_t buf_y1;
- */
- static void u8g2_update_dimension_common(u8g2_t *u8g2)
- {
- const u8x8_display_info_t *display_info = u8g2_GetU8x8(u8g2)->display_info;
- u8g2_uint_t t;
-
- t = u8g2->tile_buf_height;
- t *= 8;
- u8g2->pixel_buf_height = t;
-
- t = display_info->tile_width;
- #ifndef U8G2_16BIT
- if ( t >= 32 )
- t = 31;
- #endif
- t *= 8;
- u8g2->pixel_buf_width = t;
-
- t = u8g2->tile_curr_row;
- t *= 8;
- u8g2->pixel_curr_row = t;
-
- t = u8g2->tile_buf_height;
- /* handle the case, where the buffer is larger than the (remaining) part of the display */
- if ( t + u8g2->tile_curr_row > display_info->tile_height )
- t = display_info->tile_height - u8g2->tile_curr_row;
- t *= 8;
-
- u8g2->buf_y0 = u8g2->pixel_curr_row;
- u8g2->buf_y1 = u8g2->buf_y0;
- u8g2->buf_y1 += t;
-
- #ifdef U8G2_16BIT
- u8g2->width = display_info->pixel_width;
- u8g2->height = display_info->pixel_height;
- #else
- u8g2->width = 240;
- if ( display_info->pixel_width <= 240 )
- u8g2->width = display_info->pixel_width;
- u8g2->height = display_info->pixel_height;
- #endif
- }
- /*==========================================================*/
- /* apply clip window */
- #ifdef U8G2_WITH_CLIP_WINDOW_SUPPORT
- static void u8g2_apply_clip_window(u8g2_t *u8g2)
- {
- /* check aganst the current user_??? window */
- if ( u8g2_IsIntersection(u8g2, u8g2->clip_x0, u8g2->clip_y0, u8g2->clip_x1, u8g2->clip_y1) == 0 )
- {
- u8g2->is_page_clip_window_intersection = 0;
- }
- else
- {
- u8g2->is_page_clip_window_intersection = 1;
- if ( u8g2->user_x0 < u8g2->clip_x0 )
- u8g2->user_x0 = u8g2->clip_x0;
- if ( u8g2->user_x1 > u8g2->clip_x1 )
- u8g2->user_x1 = u8g2->clip_x1;
- if ( u8g2->user_y0 < u8g2->clip_y0 )
- u8g2->user_y0 = u8g2->clip_y0;
- if ( u8g2->user_y1 > u8g2->clip_y1 )
- u8g2->user_y1 = u8g2->clip_y1;
- }
- }
- #endif /* U8G2_WITH_CLIP_WINDOW_SUPPORT */
- /*==========================================================*/
- void u8g2_update_dimension_r0(u8g2_t *u8g2)
- {
- u8g2_update_dimension_common(u8g2);
- }
- void u8g2_update_page_win_r0(u8g2_t *u8g2)
- {
- u8g2->user_x0 = 0;
- u8g2->user_x1 = u8g2->width; /* pixel_buf_width replaced with width */
-
- u8g2->user_y0 = u8g2->buf_y0;
- u8g2->user_y1 = u8g2->buf_y1;
-
- #ifdef U8G2_WITH_CLIP_WINDOW_SUPPORT
- u8g2_apply_clip_window(u8g2);
- #endif /* U8G2_WITH_CLIP_WINDOW_SUPPORT */
- }
- void u8g2_update_dimension_r1(u8g2_t *u8g2)
- {
- u8g2_update_dimension_common(u8g2);
-
- u8g2->height = u8g2_GetU8x8(u8g2)->display_info->pixel_width;
- u8g2->width = u8g2_GetU8x8(u8g2)->display_info->pixel_height;
-
- }
- void u8g2_update_page_win_r1(u8g2_t *u8g2)
- {
- u8g2->user_x0 = u8g2->buf_y0;
- u8g2->user_x1 = u8g2->buf_y1;
-
- u8g2->user_y0 = 0;
- u8g2->user_y1 = u8g2->height; /* pixel_buf_width replaced with height (which is the real pixel width) */
-
- #ifdef U8G2_WITH_CLIP_WINDOW_SUPPORT
- u8g2_apply_clip_window(u8g2);
- #endif /* U8G2_WITH_CLIP_WINDOW_SUPPORT */
- }
- void u8g2_update_dimension_r2(u8g2_t *u8g2)
- {
- u8g2_update_dimension_common(u8g2);
- }
- void u8g2_update_page_win_r2(u8g2_t *u8g2)
- {
- u8g2->user_x0 = 0;
- u8g2->user_x1 = u8g2->width; /* pixel_buf_width replaced with width */
-
- /* there are ases where the height is not a multiple of 8. */
- /* in such a case u8g2->buf_y1 might be heigher than u8g2->height */
- u8g2->user_y0 = 0;
- if ( u8g2->height >= u8g2->buf_y1 )
- u8g2->user_y0 = u8g2->height - u8g2->buf_y1;
- u8g2->user_y1 = u8g2->height - u8g2->buf_y0;
- #ifdef U8G2_WITH_CLIP_WINDOW_SUPPORT
- u8g2_apply_clip_window(u8g2);
- #endif /* U8G2_WITH_CLIP_WINDOW_SUPPORT */
- }
- void u8g2_update_dimension_r3(u8g2_t *u8g2)
- {
- u8g2_update_dimension_common(u8g2);
-
- u8g2->height = u8g2_GetU8x8(u8g2)->display_info->pixel_width;
- u8g2->width = u8g2_GetU8x8(u8g2)->display_info->pixel_height;
- }
- void u8g2_update_page_win_r3(u8g2_t *u8g2)
- {
- /* there are ases where the height is not a multiple of 8. */
- /* in such a case u8g2->buf_y1 might be heigher than u8g2->width */
- u8g2->user_x0 = 0;
- if ( u8g2->width >= u8g2->buf_y1 )
- u8g2->user_x0 = u8g2->width - u8g2->buf_y1;
- u8g2->user_x1 = u8g2->width - u8g2->buf_y0;
-
- u8g2->user_y0 = 0;
- u8g2->user_y1 = u8g2->height; /* pixel_buf_width replaced with height (pixel_width) */
- #ifdef U8G2_WITH_CLIP_WINDOW_SUPPORT
- u8g2_apply_clip_window(u8g2);
- #endif /* U8G2_WITH_CLIP_WINDOW_SUPPORT */
- }
- /*============================================*/
- extern void u8g2_draw_hv_line_2dir(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, uint8_t dir);
- void u8g2_draw_l90_r0(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, uint8_t dir)
- {
- #ifdef __unix
- assert( dir <= 1 );
- #endif
- u8g2_draw_hv_line_2dir(u8g2, x, y, len, dir);
- }
- void u8g2_draw_l90_mirrorr_r0(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, uint8_t dir)
- {
- u8g2_uint_t xx;
- xx = u8g2->width;
- xx -= x;
- if ( (dir & 1) == 0 )
- {
- xx -= len;
- }
- else
- {
- xx--;
- }
- u8g2_draw_hv_line_2dir(u8g2, xx, y, len, dir);
- }
- /* dir = 0 or 1 */
- void u8g2_draw_l90_r1(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, uint8_t dir)
- {
- u8g2_uint_t xx, yy;
- #ifdef __unix
- assert( dir <= 1 );
- #endif
-
- yy = x;
-
- xx = u8g2->height;
- xx -= y;
- xx--;
-
- dir ++;
- if ( dir == 2 )
- {
- xx -= len;
- xx++;
- dir = 0;
- }
-
- u8g2_draw_hv_line_2dir(u8g2, xx, yy, len, dir);
- }
- void u8g2_draw_l90_r2(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, uint8_t dir)
- {
- u8g2_uint_t xx, yy;
- /*
- yy = u8g2->height;
- yy -= y;
- yy--;
-
- xx = u8g2->width;
- xx -= x;
- xx--;
-
- if ( dir == 0 )
- {
- xx -= len;
- xx++;
- }
- else if ( dir == 1 )
- {
- yy -= len;
- yy++;
- }
- */
- yy = u8g2->height;
- yy -= y;
-
- xx = u8g2->width;
- xx -= x;
-
- if ( dir == 0 )
- {
- yy--;
- xx -= len;
- }
- else if ( dir == 1 )
- {
- xx--;
- yy -= len;
- }
- u8g2_draw_hv_line_2dir(u8g2, xx, yy, len, dir);
- }
- void u8g2_draw_l90_r3(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, uint8_t dir)
- {
- u8g2_uint_t xx, yy;
- xx = y;
-
- yy = u8g2->width;
- yy -= x;
-
- if ( dir == 0 )
- {
- yy--;
- yy -= len;
- yy++;
- dir = 1;
- }
- else
- {
- yy--;
- dir = 0;
- }
-
-
- u8g2_draw_hv_line_2dir(u8g2, xx, yy, len, dir);
- }
- /*============================================*/
- const u8g2_cb_t u8g2_cb_r0 = { u8g2_update_dimension_r0, u8g2_update_page_win_r0, u8g2_draw_l90_r0 };
- const u8g2_cb_t u8g2_cb_r1 = { u8g2_update_dimension_r1, u8g2_update_page_win_r1, u8g2_draw_l90_r1 };
- const u8g2_cb_t u8g2_cb_r2 = { u8g2_update_dimension_r2, u8g2_update_page_win_r2, u8g2_draw_l90_r2 };
- const u8g2_cb_t u8g2_cb_r3 = { u8g2_update_dimension_r3, u8g2_update_page_win_r3, u8g2_draw_l90_r3 };
-
- const u8g2_cb_t u8g2_cb_mirror = { u8g2_update_dimension_r0, u8g2_update_page_win_r0, u8g2_draw_l90_mirrorr_r0 };
-
- /*============================================*/
- /* setup for the null device */
- /* setup for the null (empty) device */
- void u8g2_Setup_null(u8g2_t *u8g2, const u8g2_cb_t *rotation, u8x8_msg_cb byte_cb, u8x8_msg_cb gpio_and_delay_cb)
- {
- static uint8_t buf[8];
- u8g2_SetupDisplay(u8g2, u8x8_d_null_cb, u8x8_cad_empty, byte_cb, gpio_and_delay_cb);
- u8g2_SetupBuffer(u8g2, buf, 1, u8g2_ll_hvline_vertical_top_lsb, rotation);
- }
-
-
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