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engines/sci/graphics/drivers/gfxdriver.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#ifndef SCI_GRAPHICS_DRIVERS_GFXDRIVER_H
+#define SCI_GRAPHICS_DRIVERS_GFXDRIVER_H
+
+#include "common/rendermode.h"
+#include "common/rect.h"
+#include "graphics/pixelformat.h"
+#include "sci/detection.h"
+
+namespace Graphics {
+	class Cursor;
+}
+
+namespace Sci {
+
+struct PaletteMod;
+
+class GfxDriver {
+public:
+	enum DrawFlags : uint32 {
+		kHiResMode		=	1 << 0,
+		kMovieMode		=	1 << 1
+	};
+
+	GfxDriver(uint16 screenWidth, uint16 screenHeight, int numColors) : _screenW(screenWidth), _screenH(screenHeight), _numColors(numColors), _ready(false), _pixelSize(1) {}
+	virtual ~GfxDriver() {}
+	virtual void initScreen(const Graphics::PixelFormat *srcRGBFormat = nullptr) = 0; // srcRGBFormat: expect incoming data to have the specified rgb pixel format (used for Mac hicolor videos)
+	virtual void setPalette(const byte *colors, uint start, uint num, bool update, const PaletteMod *palMods, const byte *palModMapping) = 0;
+	virtual void copyRectToScreen(const byte *src, int srcX, int srcY, int pitch, int destX, int destY, int w, int h, const PaletteMod *palMods, const byte *palModMapping) = 0;
+	virtual void replaceCursor(const void *cursor, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor) = 0;
+	virtual void replaceMacCursor(const Graphics::Cursor *cursor) = 0;
+	virtual Common::Point getMousePos() const;
+	virtual void setMousePos(const Common::Point &pos) const;
+	virtual void setShakePos(int shakeXOffset, int shakeYOffset) const;
+	virtual void clearRect(const Common::Rect &r) const;
+	virtual void copyCurrentBitmap(byte *dest, uint32 size) const = 0;
+	virtual void copyCurrentPalette(byte *dest, int start, int num) const;
+	virtual void drawTextFontGlyph(const byte *src, int pitch, int hiresDestX, int hiresDestY, int hiresW, int hiresH, int transpColor, const PaletteMod *palMods, const byte *palModMapping) = 0;
+	virtual byte remapTextColor(byte color) const { return color; }
+	virtual void setColorMap(const byte *colorMap) {}
+	virtual Common::Point getRealCoords(Common::Point &pos) const { return pos; }
+	virtual void setFlags(uint32 flags) {}
+	virtual void clearFlags(uint32 flags) {}
+	virtual bool supportsPalIntensity() const = 0;
+	virtual bool supportsHiResGraphics() const = 0;
+	virtual bool driverBasedTextRendering() const = 0;
+	uint16 numColors() const { return _numColors; }
+	byte pixelSize() const { return _pixelSize; }
+
+protected:
+	bool _ready;
+	static bool checkDriver(const char *const *driverNames, int listSize);
+	const uint16 _screenW;
+	const uint16 _screenH;
+	uint16 _numColors;
+	byte _pixelSize;
+};
+
+} // End of namespace Sci
+
+namespace SciGfxDriver {
+
+Common::RenderMode getRenderMode();
+Sci::GfxDriver *create(Common::RenderMode renderMode, int width, int height);
+
+} // End of namespace SciGfxDriver
+
+#endif // SCI_GRAPHICS_DRIVERS_GFXDRIVER_H