197 lines
6.7 KiB
C++
197 lines
6.7 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 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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common/file.h"
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#include "common/system.h"
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#include "graphics/cursorman.h"
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#include "sci/graphics/drivers/gfxdriver_intern.h"
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namespace Sci {
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class SCI0_HerculesDriver final : public SCI0_DOSPreVGADriver {
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public:
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SCI0_HerculesDriver(uint32 monochromeColor, bool rgbRendering, bool cropImage);
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~SCI0_HerculesDriver() override;
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void copyRectToScreen(const byte *src, int srcX, int srcY, int pitch, int destX, int destY, int w, int h, const PaletteMod*, const byte*) override;
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void replaceCursor(const void *cursor, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor) override;
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Common::Point getMousePos() const override;
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void setMousePos(const Common::Point &pos) const override;
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void setShakePos(int shakeXOffset, int shakeYOffset) const override;
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void clearRect(const Common::Rect &r) const override;
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Common::Point getRealCoords(Common::Point &pos) const override;
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static bool validateMode(Common::Platform p) { return (p == Common::kPlatformDOS) && checkDriver(&_driverFile, 1); }
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private:
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void setupRenderProc() override;
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const uint16 _centerX;
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const uint16 _centerY;
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byte _monochromePalette[6];
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const byte *_monochromePatterns;
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typedef void (*LineProc)(byte*&, const byte*, int, int, int, const byte*, const byte*);
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LineProc _renderLine;
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static const char *_driverFile;
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};
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SCI0_HerculesDriver::SCI0_HerculesDriver(uint32 monochromeColor, bool rgbRendering, bool cropImage) : SCI0_DOSPreVGADriver(2, cropImage ? 640 : 720, cropImage ? 300 : 350, rgbRendering),
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_centerX(cropImage ? 0 : 40), _centerY(cropImage ? 0 : 25), _monochromePatterns(nullptr), _renderLine(nullptr) {
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_monochromePalette[0] = _monochromePalette[1] = _monochromePalette[2] = 0;
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_monochromePalette[3] = (monochromeColor >> 16) & 0xff;
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_monochromePalette[4] = (monochromeColor >> 8) & 0xff;
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_monochromePalette[5] = monochromeColor & 0xff;
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assignPalette(_monochromePalette);
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bool unused = false;
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if (!(_monochromePatterns = SciGfxDrvInternal::monochrInit(_driverFile, unused)))
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GFXDRV_ERR_OPEN(_driverFile);
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}
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SCI0_HerculesDriver::~SCI0_HerculesDriver() {
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delete[] _monochromePatterns;
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}
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void SCI0_HerculesDriver::copyRectToScreen(const byte *src, int srcX, int srcY, int pitch, int destX, int destY, int w, int h, const PaletteMod*, const byte*) {
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GFXDRV_ASSERT_READY;
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byte *dst = _compositeBuffer;
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byte sw = destY & 1;
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src += (srcY * pitch + srcX);
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destY = (destY & ~1) * 3 / 2 + (destY & 1);
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int ty = destY & 7;
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int rh = 0;
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for (int i = 0; i < h; ++i) {
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const byte *src2 = src;
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_renderLine(dst, src2, w, srcX & 3, ty, _monochromePatterns, _internalPalette);
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ty = (ty + 1) & 7;
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++rh;
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if (sw & 1)
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sw ^= 2;
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if (sw != 3) {
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src += pitch;
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sw ^= 1;
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} else {
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--i;
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}
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}
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g_system->copyRectToScreen(_compositeBuffer, (w << 1) * _pixelSize, (destX << 1) + _centerX, destY + _centerY, w << 1, rh);
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}
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void SCI0_HerculesDriver::replaceCursor(const void *cursor, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor) {
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GFXDRV_ASSERT_READY;
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// Instead of implementing the original cursor rendering code, we rely on the 8 bit cursor that
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// has already been generated by the engine. We simply convert the colors as needed and scale the cursor...
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assert(keycolor == 1);
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keycolor = 0x0f;
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int alt = 0;
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const byte *s = reinterpret_cast<const byte *>(cursor);
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byte *d = _compositeBuffer;
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for (uint i = 0; i < h; ++i) {
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for (uint ii = 0; ii < (w << 1); ++ii) {
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*d++ = *s ? (*s ^ 0x0e) : 0;
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if (ii & 1)
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++s;
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}
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if (i & 1) {
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alt ^= 1;
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if (alt) {
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s -= w;
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--i;
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}
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}
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}
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CursorMan.replaceCursor(_compositeBuffer, w << 1, (h & ~1) * 3 / 2 + (h & 1), hotspotX << 1, (hotspotY & ~1) * 3 / 2 + (hotspotY & 1), keycolor);
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}
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Common::Point SCI0_HerculesDriver::getMousePos() const {
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Common::Point res = GfxDriver::getMousePos();
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res.x = CLIP<int>(res.x - _centerX, 0, 639) >> 1;
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res.y = (CLIP<int>(res.y - _centerY, 0, 299) * 2 + 1) / 3;
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return res;
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}
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void SCI0_HerculesDriver::setMousePos(const Common::Point &pos) const {
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g_system->warpMouse((pos.x << 1) + _centerX, (pos.y & ~1) * 3 / 2 + (pos.y & 1) + _centerY);
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}
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void SCI0_HerculesDriver::setShakePos(int shakeXOffset, int shakeYOffset) const {
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g_system->setShakePos(shakeXOffset << 1, (shakeYOffset & ~1) * 3 / 2 + (shakeYOffset & 1));
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}
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void SCI0_HerculesDriver::clearRect(const Common::Rect &r) const {
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Common::Rect r2((r.left << 1) + _centerX, (r.top & ~1) * 3 / 2 + (r.top & 1) + _centerY, (r.right << 1) + _centerX, (r.bottom & ~1) * 3 / 2 + (r.bottom & 1) + _centerY);
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GfxDriver::clearRect(r2);
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}
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Common::Point SCI0_HerculesDriver::getRealCoords(Common::Point &pos) const {
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return Common::Point((pos.x << 1) + _centerX, (pos.y & ~1) * 3 / 2 + (pos.y & 1) + _centerY);
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}
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template <typename T> void herculesRenderLine(byte *&dst, const byte *src, int w, int tx, int ty, const byte *patterns, const byte *pal) {
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T *d = reinterpret_cast<T*>(dst);
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const T *p = reinterpret_cast<const T*>(pal);
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for (int i = 0; i < w; ++i) {
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byte pt = patterns[((*src++ & 0x0f) << 3) + ty] >> (6 - (tx << 1));
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if (sizeof(T) == 1) {
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*d++ = (pt >> 1) & 1;
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*d++ = pt & 1;
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} else {
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*d++ = p[(pt >> 1) & 1];
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*d++ = p[pt & 1];
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}
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tx = (tx + 1) & 3;
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}
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dst = reinterpret_cast<byte*>(d);
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}
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void SCI0_HerculesDriver::setupRenderProc() {
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static const LineProc lineProcs[] = {
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&herculesRenderLine<byte>,
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&herculesRenderLine<uint16>,
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&herculesRenderLine<uint32>
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};
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assert((_pixelSize >> 1) < ARRAYSIZE(lineProcs));
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_renderLine = lineProcs[_pixelSize >> 1];
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}
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const char *SCI0_HerculesDriver::_driverFile = "HERCMONO.DRV";
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SCI_GFXDRV_VALIDATE_IMPL(SCI0_Hercules)
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GfxDriver *SCI0_HerculesDriver_create(int rgbRendering, ...) {
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static const uint32 monochromeColors[] = { 0xffbf66, 0x66ff66, 0xffffff };
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va_list args;
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va_start(args, rgbRendering);
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int config = CLIP<int>(va_arg(args, int), 0, ARRAYSIZE(monochromeColors) - 1);
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va_end(args);
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return new SCI0_HerculesDriver(monochromeColors[config], rgbRendering != 0, false);
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}
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} // End of namespace Sci
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