Working

bertos/drv/lcd_gfx_qt.cpp

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+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos 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 St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2006, 2008 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \author Bernie Innocenti <bernie@codewiz.org>
+ *
+ * \brief Custom control for graphics LCD emulation (implementation)
+ */
+
+#include "lcd_gfx_qt.h"
+#include <emul/emul.h>
+#include <cfg/debug.h>
+#include <gfx/gfx.h> // CONFIG_BITMAP_FMT
+
+#include <QtGui/QPainter>
+#include <QtGui/QImage>
+#include <QtGui/QSizePolicy>
+#include <QtCore/QSize>
+
+// Display colors
+#define LCD_FG_COLOR 0x0, 0x0, 0x0
+#define LCD_BG_COLOR 0xBB, 0xCC, 0xBB
+
+
+EmulLCD::EmulLCD(QWidget *parent) :
+	QFrame(parent),
+	fg_color(LCD_FG_COLOR),
+	bg_brush(QColor(LCD_BG_COLOR))
+{
+	// Optimized rendering: we repaint everything anyway
+	setAttribute(Qt::WA_NoSystemBackground);
+
+	// initialize bitmap
+	memset(raster, 0xAA, sizeof(raster));
+
+	// set widget frame
+	setFrameStyle(QFrame::Panel | QFrame::Sunken);
+	frame_width = frameWidth();
+
+	setMinimumSize(WIDTH + frame_width * 2, HEIGHT + frame_width * 2);
+
+	#if CONFIG_EMULLCD_SCALE
+		QSizePolicy pol = QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred, QSizePolicy::Frame);
+		pol.setHeightForWidth(true);
+	#else
+		QSizePolicy pol = QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed, QSizePolicy::Frame);
+	#endif
+	setSizePolicy(pol);
+}
+
+
+EmulLCD::~EmulLCD()
+{
+	// nop
+}
+
+#if CONFIG_EMULLCD_SCALE
+int EmulLCD::heightForWidth(int w) const
+{
+		int h;
+
+		w -= frame_width * 2;
+		h = (w * HEIGHT + WIDTH/2) / WIDTH;
+		h += frame_width * 2;
+
+		return h;
+}
+#endif // CONFIG_EMULLCD_SCALE
+
+void EmulLCD::paintEvent(QPaintEvent * /*event*/)
+{
+	QPainter p(this);
+	QImage img(raster, WIDTH, HEIGHT, QImage::Format_Mono);
+
+	#if CONFIG_EMULLCD_SCALE
+		int w = width() - frame_width * 2;
+		int h = height() - frame_width * 2;
+		if ((w != WIDTH) || (h != HEIGHT))
+		{
+			p.scale((qreal)w / WIDTH, (qreal)h / HEIGHT);
+			//p.setRenderHint(QPainter::SmoothPixmapTransform);
+		}
+	#endif // CONFIG_EMULLCD_SCALE
+
+	p.setBackgroundMode(Qt::OpaqueMode);
+	p.setBackground(bg_brush);
+	p.setPen(fg_color);
+
+	p.drawImage(QPoint(frame_width, frame_width), img);
+}
+
+void EmulLCD::writeRaster(uint8_t *new_raster)
+{
+#if CONFIG_BITMAP_FMT == BITMAP_FMT_PLANAR_H_MSB
+
+	// Straight copy
+	//memcpy(raster, new_raster, sizeof(raster));
+
+	// Inverting copy
+	for (int i = 0; i < (int)sizeof(raster); ++i)
+		raster[i] = ~new_raster[i];
+
+#elif CONFIG_BITMAP_FMT == BITMAP_FMT_PLANAR_V_LSB
+
+	// Rotation + inversion
+	for (int y = 0; y < HEIGHT; ++y)
+	{
+		for (int xbyte = 0; xbyte < WIDTH/8; ++xbyte)
+		{
+			uint8_t v = 0;
+			for (int xbit = 0; xbit < 8; ++xbit)
+				v |= (new_raster[(xbyte * 8 + xbit) + (y / 8) * WIDTH] & (1 << (y%8)) )
+					? (1 << (7 - xbit)) : 0;
+
+			raster[y * ((WIDTH + 7) / 8) + xbyte] = v;
+		}
+	}
+#else
+	#error Unsupported bitmap format
+#endif
+
+	repaint();
+}
+
+
+
+#include <gfx/gfx.h>
+#include <cfg/debug.h>
+
+DECLARE_WALL(wall_before_raster, WALL_SIZE)
+/**
+ * Raster buffer to draw into.
+ *
+ * Bits in the bitmap bytes have vertical orientation,
+ * as required by the LCD driver.
+ */
+static uint8_t lcd_raster[RAST_SIZE(EmulLCD::WIDTH, EmulLCD::HEIGHT)];
+DECLARE_WALL(wall_after_raster, WALL_SIZE)
+
+
+
+
+/*extern "C"*/ void lcd_gfx_qt_init(Bitmap *lcd_bitmap)
+{
+	//FIXME INIT_WALL(wall_before_raster);
+	//FIXME INIT_WALL(wall_after_raster);
+	gfx_bitmapInit(lcd_bitmap, lcd_raster, EmulLCD::WIDTH, EmulLCD::HEIGHT);
+	gfx_bitmapClear(lcd_bitmap);
+}
+
+/*extern "C"*/ void lcd_gfx_qt_blitBitmap(const	Bitmap *bm)
+{
+	//FIXME CHECK_WALL(wall_before_raster);
+	//FIXME CHECK_WALL(wall_after_raster);
+	emul->emulLCD->writeRaster(bm->raster);
+}
+
+#include "lcd_gfx_qt_moc.cpp"
+