mirror of
https://github.com/libretro/scummvm.git
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128 lines
3.4 KiB
C++
128 lines
3.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "adl/display.h"
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#ifndef ADL_DISPLAY_A2_H
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#define ADL_DISPLAY_A2_H
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namespace Adl {
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class Display_A2 : public Display {
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public:
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Display_A2();
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~Display_A2() override;
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enum {
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kGfxWidth = 280,
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kGfxHeight = 192,
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kGfxPitch = kGfxWidth / 7,
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kGfxSize = kGfxPitch * kGfxHeight,
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kTextWidth = 40,
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kTextHeight = 24,
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kSplitHeight = 32
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};
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void init() override;
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// Graphics
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uint getGfxWidth() const { return kGfxWidth; }
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uint getGfxHeight() const { return kGfxHeight; }
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uint getGfxPitch() const { return kGfxPitch; }
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void loadFrameBuffer(Common::ReadStream &stream, byte *dst) const ;
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void loadFrameBuffer(Common::ReadStream &stream);
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void putPixel(const Common::Point &p, byte color);
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void setPixelByte(const Common::Point &p, byte color);
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void setPixelBit(const Common::Point &p, byte color);
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void setPixelPalette(const Common::Point &p, byte color);
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byte getPixelByte(const Common::Point &p) const;
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bool getPixelBit(const Common::Point &p) const;
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void clear(byte color);
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// Text
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char asciiToNative(char c) const override { return c | 0x80; }
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void printChar(char c) override;
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void showCursor(bool enable) override;
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protected:
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class TextReader {
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public:
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static uint16 getBits(const Display_A2 *display, uint y, uint x) {
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const uint charPos = (y >> 3) * kTextWidth + x;
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byte m = display->_textBuf[charPos];
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if (display->_showCursor && charPos == display->_cursorPos)
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m = (m & 0x3f) | 0x40;
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byte b = _font[m & 0x3f][y % 8];
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if (!(m & 0x80) && (!(m & 0x40) || display->_blink))
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b = ~b;
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return b & 0x7f;
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}
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static uint8 getStartY(const Display_A2 *display) {
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if (display->_mode == kModeText)
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return 0;
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else
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return kGfxHeight - kSplitHeight;
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}
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static uint8 getEndY(const Display_A2 *display) { return kGfxHeight; }
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};
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class GfxReader {
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public:
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static uint16 getBits(const Display_A2 *display, uint y, uint x) {
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return display->_frameBuf[y * kGfxPitch + x];
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}
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static uint8 getStartY(const Display_A2 *display) { return 0; }
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static uint8 getEndY(const Display_A2 *display) {
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if (display->_mode == kModeGraphics)
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return kGfxHeight;
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else
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return kGfxHeight - kSplitHeight;
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}
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};
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byte *_frameBuf;
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bool _showCursor;
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bool _enableColor;
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bool _enableScanlines;
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bool _enableMonoText;
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bool _blink;
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private:
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void writeFrameBuffer(const Common::Point &p, byte color, byte mask);
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static const byte _font[64][8];
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};
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Display_A2 *Display_A2_create();
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} // End of namespace Adl
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#endif
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