c99accc70e
Created gdisp_fonts.h to describe the internal structure of a font. Moved template directory to templates and created a sub-folder for each low level driver type. Moved the pre-defined font data and emulation code into better locations. Changed the emulation code to be included in the low level driver (where it should be) instead of the high level driver. Added new low level driver gdispS6d1121 (someone please test) Updated and added new readme's.
432 lines
12 KiB
C
432 lines
12 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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---
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes ChibiOS/RT, without being obliged to provide
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the source code for any proprietary components. See the file exception.txt
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for full details of how and when the exception can be applied.
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*/
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/*
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Concepts and parts of this file have been contributed by:
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Joel Bodenmann aka Tectu -> Maintainer
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Andrew Hannam aka inmarket -> Framework
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Badger -> console implementation and FSMC
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Abhishek -> font rendering
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Ben William -> fastMath and lcdDrawEllipse()
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Dongxu Li aka dxli -> lcdDrawEllipse() filled option
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*/
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/*
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Emulation routines included into gdisp_lld.c
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*/
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/*
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Even though this is a software emulation of a low level driver
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most validation doesn't need to happen here as eventually
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we call a real low level driver routine and if validation is
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required - it will do it.
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*/
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#if !GDISP_HARDWARE_POWERCONTROL
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void gdisp_lld_setpowermode(gdisp_powermode_t UNUSED(powerMode)) {
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}
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#endif
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#if !GDISP_HARDWARE_ORIENTATION
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void gdisp_lld_setorientation(gdisp_orientation_t UNUSED(newOrientation)) {
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}
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#endif
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#if !GDISP_HARDWARE_CLEARS
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void gdisp_lld_clear(color_t color) {
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gdisp_lld_fillarea(0, 0, GDISP.Width, GDISP.Height, color);
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}
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#endif
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#if !GDISP_HARDWARE_LINES
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void gdisp_lld_drawline(coord_t x0, coord_t y0, coord_t x1, coord_t y1, color_t color) {
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int16_t dy, dx;
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int16_t addx, addy;
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int16_t P, diff, i;
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#if GDISP_HARDWARE_FILLS || GDISP_HARDWARE_SCROLL
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// speed improvement if vertical or horizontal
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if (x0 == x1) {
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if (y1 > y0)
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gdisp_lld_fillarea(x0, y0, 1, y1-y0+1, color);
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else
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gdisp_lld_fillarea(x0, y1, 1, y0-y1+1, color);
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return;
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}
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if (y0 == y1) {
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if (x1 > x0)
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gdisp_lld_fillarea(x0, y0, x1-x0+1, 1, color);
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else
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gdisp_lld_fillarea(x0, y1, x0-x1+1, 1, color);
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return;
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}
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#endif
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if (x1 >= x0) {
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dx = x1 - x0;
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addx = 1;
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} else {
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dx = x0 - x1;
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addx = -1;
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}
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if (y1 >= y0) {
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dy = y1 - y0;
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addy = 1;
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} else {
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dy = y0 - y1;
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addy = -1;
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}
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if (dx >= dy) {
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dy *= 2;
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P = dy - dx;
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diff = P - dx;
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for(i=0; i<=dx; ++i) {
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gdisp_lld_drawpixel(x0, y0, color);
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if (P < 0) {
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P += dy;
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x0 += addx;
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} else {
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P += diff;
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x0 += addx;
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y0 += addy;
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}
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}
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} else {
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dx *= 2;
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P = dx - dy;
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diff = P - dy;
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for(i=0; i<=dy; ++i) {
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gdisp_lld_drawpixel(x0, y0, color);
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if (P < 0) {
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P += dx;
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y0 += addy;
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} else {
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P += diff;
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x0 += addx;
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y0 += addy;
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}
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}
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}
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}
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#endif
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#if !GDISP_HARDWARE_BOX
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void gdisp_lld_drawbox(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
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coord_t x1, y1;
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x1 = x+cx-1;
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y1 = y+cy-1;
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if (cx > 2) {
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if (cy >= 1) {
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gdisp_lld_drawline(x, y, x1, y, color);
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if (cy >= 2) {
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gdisp_lld_drawline(x, y1, x1, y1, color);
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if (cy > 2) {
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gdisp_lld_drawline(x, y+1, x, y1-1, color);
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gdisp_lld_drawline(x1, y+1, x1, y1-1, color);
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}
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}
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}
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} else if (cx == 2) {
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gdisp_lld_drawline(x, y, x, y1, color);
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gdisp_lld_drawline(x1, y, x1, y1, color);
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} else if (cx == 1) {
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gdisp_lld_drawline(x, y, x, y1, color);
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}
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}
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#endif
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#if !GDISP_HARDWARE_FILLS
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void gdisp_lld_fillarea(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
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#if GDISP_HARDWARE_SCROLL
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gdisp_lld_verticalscroll(x, y, cx, cy, cy, color);
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#elif GDISP_HARDWARE_LINES
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coord_t x1, y1;
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x1 = x + cx - 1;
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y1 = y + cy;
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for(; y < y1; y++)
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gdisp_lld_drawline(x, y, x1, y, color);
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#else
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coord_t x0, x1, y1;
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x0 = x;
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x1 = x + cx;
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y1 = y + cy;
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for(; y < y1; y++)
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for(x = x0; x < x1; x++)
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gdisp_lld_drawpixel(x, y, color);
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#endif
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}
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#endif
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#if !GDISP_HARDWARE_BITFILLS
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void gdisp_lld_blitarea(coord_t x, coord_t y, coord_t cx, coord_t cy, pixel_t *buffer) {
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coord_t x0, x1, y1;
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x0 = x;
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x1 = x + cx;
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y1 = y + cy;
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for(; y < y1; y++)
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for(x = x0; x < x1; x++)
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gdisp_lld_drawpixel(x, y, *buffer++);
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}
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#endif
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#if GDISP_NEED_CIRCLE && !GDISP_HARDWARE_CIRCLES
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void gdisp_lld_drawcircle(coord_t x, coord_t y, coord_t radius, color_t color) {
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int16_t a, b, P;
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a = 0;
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b = radius;
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P = 1 - radius;
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do {
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gdisp_lld_drawpixel(a+x, b+y, color);
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gdisp_lld_drawpixel(b+x, a+y, color);
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gdisp_lld_drawpixel(x-a, b+y, color);
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gdisp_lld_drawpixel(x-b, a+y, color);
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gdisp_lld_drawpixel(b+x, y-a, color);
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gdisp_lld_drawpixel(a+x, y-b, color);
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gdisp_lld_drawpixel(x-a, y-b, color);
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gdisp_lld_drawpixel(x-b, y-a, color);
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if (P < 0)
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P += 3 + 2*a++;
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else
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P += 5 + 2*(a++ - b--);
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} while(a <= b);
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}
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#endif
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#if GDISP_NEED_CIRCLE && !GDISP_HARDWARE_CIRCLEFILLS
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void gdisp_lld_fillcircle(coord_t x, coord_t y, coord_t radius, color_t color) {
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int16_t a, b, P;
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a = 0;
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b = radius;
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P = 1 - radius;
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do {
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gdisp_lld_drawline(x-a, y+b, x+a, y+b, color);
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gdisp_lld_drawline(x-a, y-b, x+a, y-b, color);
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gdisp_lld_drawline(x-b, y+a, x+b, y+a, color);
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gdisp_lld_drawline(x-b, y-a, x+b, y-a, color);
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if (P < 0)
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P += 3 + 2*a++;
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else
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P += 5 + 2*(a++ - b--);
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} while(a <= b);
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}
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#endif
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#if GDISP_NEED_ELLIPSE && !GDISP_HARDWARE_ELLIPSES
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void gdisp_lld_drawellipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
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int dx = 0, dy = b; /* im I. Quadranten von links oben nach rechts unten */
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long a2 = a*a, b2 = b*b;
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long err = b2-(2*b-1)*a2, e2; /* Fehler im 1. Schritt */
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do {
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gdisp_lld_drawpixel(x+dx, y+dy, color); /* I. Quadrant */
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gdisp_lld_drawpixel(x-dx, y+dy, color); /* II. Quadrant */
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gdisp_lld_drawpixel(x-dx, y-dy, color); /* III. Quadrant */
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gdisp_lld_drawpixel(x+dx, y-dy, color); /* IV. Quadrant */
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e2 = 2*err;
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if(e2 < (2*dx+1)*b2) {
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dx++;
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err += (2*dx+1)*b2;
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}
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if(e2 > -(2*dy-1)*a2) {
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dy--;
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err -= (2*dy-1)*a2;
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}
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} while(dy >= 0);
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while(dx++ < a) { /* fehlerhafter Abbruch bei flachen Ellipsen (b=1) */
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gdisp_lld_drawpixel(x+dx, y, color); /* -> Spitze der Ellipse vollenden */
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gdisp_lld_drawpixel(x-dx, y, color);
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}
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}
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#endif
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#if GDISP_NEED_ELLIPSE && !GDISP_HARDWARE_ELLIPSEFILLS
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void gdisp_lld_fillellipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
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int dx = 0, dy = b; /* im I. Quadranten von links oben nach rechts unten */
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long a2 = a*a, b2 = b*b;
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long err = b2-(2*b-1)*a2, e2; /* Fehler im 1. Schritt */
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do {
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gdisp_lld_drawline(x-dx,y+dy,x+dx,y+dy, color);
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gdisp_lld_drawline(x-dx,y-dy,x+dx,y-dy, color);
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e2 = 2*err;
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if(e2 < (2*dx+1)*b2) {
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dx++;
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err += (2*dx+1)*b2;
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}
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if(e2 > -(2*dy-1)*a2) {
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dy--;
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err -= (2*dy-1)*a2;
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}
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} while(dy >= 0);
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while(dx++ < a) { /* fehlerhafter Abbruch bei flachen Ellipsen (b=1) */
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gdisp_lld_drawpixel(x+dx, y, color); /* -> Spitze der Ellipse vollenden */
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gdisp_lld_drawpixel(x-dx, y, color);
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}
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}
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#endif
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#if GDISP_NEED_TEXT && !GDISP_HARDWARE_TEXT
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void gdisp_lld_drawchar(coord_t x, coord_t y, char c, font_t font, color_t color) {
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const fontcolumn_t *ptr;
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fontcolumn_t column;
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coord_t width, i, j;
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/* Check we actually have something to print */
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width = _getCharWidth(font, c);
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if (!width) return;
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ptr = _getCharData(font, c);
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/* Loop through the data and display. The font data is LSBit first, down the column */
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for(i = 0; i < width; i++) {
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/* Get the font bitmap data for the column */
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column = *ptr++;
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/* Draw each pixel */
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for(j = 0; j < font->height; j++, column >>= 1) {
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if (column & 0x01)
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gdisp_lld_drawpixel(x+i, y+j, color);
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}
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}
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}
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#endif
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#if GDISP_NEED_TEXT && !GDISP_HARDWARE_TEXTFILLS
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void gdisp_lld_fillchar(coord_t x, coord_t y, char c, font_t font, color_t color, color_t bgcolor) {
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coord_t width;
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/* Check we actually have something to print */
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width = _getCharWidth(font, c);
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if (!width) return;
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/* Method 1: Use background fill and then draw the text */
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#if GDISP_HARDWARE_TEXT || GDISP_SOFTWARE_TEXTFILLDRAW
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/* Fill the area */
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gdisp_lld_fillarea(x, y, width, font->height, bgcolor);
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/* Draw the text */
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gdisp_lld_drawchar(x, y, c, font, color);
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/* Method 2: Create a single column bitmap and then blit it */
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#elif GDISP_HARDWARE_BITFILLS && GDISP_SOFTWARE_TEXTBLITCOLUMN
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{
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const fontcolumn_t *ptr;
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fontcolumn_t column;
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coord_t i, j;
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/* Working buffer for fast non-transparent text rendering [patch by Badger] */
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static pixel_t buf[sizeof(fontcolumn_t)*8];
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ptr = _getCharData(font, c);
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/* Loop through the data and display. The font data is LSBit first, down the column */
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for(i = 0; i < width; i++) {
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/* Get the font bitmap data for the column */
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column = *ptr++;
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/* Draw each pixel */
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for(j = 0; j < font->height; j++, column >>= 1) {
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gdispPackPixels(buf, 1, i, 0, (column & 0x01) ? color : bgcolor);
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}
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gdisp_lld_blitarea(x+i, y, 1, font->height, buf);
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}
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}
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/* Method 3: Create a character bitmap and then blit it */
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#elif GDISP_HARDWARE_BITFILLS
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{
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const fontcolumn_t *ptr;
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fontcolumn_t column;
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coord_t i, j;
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/* Working buffer for fast non-transparent text rendering [patch by Badger]
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This needs to be larger than the largest character we can print.
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*/
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static pixel_t buf[20*(sizeof(fontcolumn_t)*8)];
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#if GDISP_NEED_VALIDATION
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/* Check our buffer is big enough */
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if (width * font->height > sizeof(buf)/sizeof(buf[0])) return;
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#endif
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ptr = _getCharData(font, c);
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/* Loop through the data and display. The font data is LSBit first, down the column */
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for(i = 0; i < width; i++) {
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/* Get the font bitmap data for the column */
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column = *ptr++;
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/* Draw each pixel */
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for(j = 0; j < font->height; j++, column >>= 1) {
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gdispPackPixels(buf, width, i, j, (column & 0x01) ? color : bgcolor);
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}
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}
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/* [Patch by Badger] Write all in one stroke */
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gdisp_lld_blitarea(x, y, width, font->height, buf);
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}
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/* Method 4: Draw pixel by pixel */
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#else
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{
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const fontcolumn_t *ptr;
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fontcolumn_t column;
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coord_t i, j;
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ptr = _getCharData(font, c);
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/* Loop through the data and display. The font data is LSBit first, down the column */
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for(i = 0; i < width; i++) {
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/* Get the font bitmap data for the column */
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column = *ptr++;
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/* Draw each pixel */
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for(j = 0; j < font->height; j++, column >>= 1) {
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gdisp_lld_drawpixel(x+i, y+j, (column & 0x01) ? color : bgcolor);
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}
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}
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}
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#endif
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}
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#endif
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