Initial commit

engines/awe/gfx.h

@@ -0,0 +1,96 @@
+/* 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 AWE_GRAPHICS_H
+#define AWE_GRAPHICS_H
+
+#include "graphics/surface.h"
+#include "awe/intern.h"
+
+namespace Awe {
+
+enum {
+	FMT_CLUT,
+	FMT_RGB555,
+	FMT_RGB,
+	FMT_RGBA,
+};
+
+enum {
+	FIXUP_PALETTE_NONE,
+	FIXUP_PALETTE_REDRAW, // redraw all primitives on setPal script call
+};
+
+enum {
+	COL_ALPHA = 0x10, // transparent pixel (OR'ed with 0x8)
+	COL_PAGE  = 0x11, // buffer 0 pixel
+	COL_BMP   = 0xFF, // bitmap in buffer 0 pixel
+};
+
+enum {
+	GRAPHICS_ORIGINAL,
+	GRAPHICS_SOFTWARE,
+	GRAPHICS_GL
+};
+
+enum {
+	ALPHA_COLOR_INDEX = 12, // 3DO uses 0x0010 (RGB555) as the blend color, using color #12 matches Amiga/DOS graphics better
+	GFX_W = 320,
+	GFX_H = 200
+};
+
+struct SystemStub;
+
+struct Gfx {
+	static const uint8 FONT[];
+	static bool _is1991; // draw graphics as in the original 1991 game release
+	static Graphics::PixelFormat _format;
+	static const uint16 SHAPES_MASK_OFFSET[];
+	static const int SHAPES_MASK_COUNT;
+	static const uint8 SHAPES_MASK_DATA[];
+
+	int _fixUpPalette = 0;
+
+	virtual ~Gfx() {};
+
+	virtual void init(int targetW, int targetH) {}
+	virtual void fini() {}
+
+	virtual void setFont(const uint8 *src, int w, int h) = 0;
+	virtual void setPalette(const Color *colors, int count) = 0;
+	virtual void setSpriteAtlas(const uint8 *src, int w, int h, int xSize, int ySize) = 0;
+	virtual void drawSprite(int buffer, int num, const Point *pt, uint8 color) = 0;
+	virtual void drawBitmap(int buffer, const uint8 *data, int w, int h, int fmt) = 0;
+	virtual void drawPoint(int buffer, uint8 color, const Point *pt) = 0;
+	virtual void drawQuadStrip(int buffer, uint8 color, const QuadStrip *qs) = 0;
+	virtual void drawStringChar(int buffer, uint8 color, char c, const Point *pt) = 0;
+	virtual void clearBuffer(int num, uint8 color) = 0;
+	virtual void copyBuffer(int dst, int src, int vscroll = 0) = 0;
+	virtual void drawBuffer(int num, SystemStub *) = 0;
+	virtual void drawRect(int num, uint8 color, const Point *pt, int w, int h) = 0;
+	virtual void drawBitmapOverlay(const Graphics::Surface &src, int fmt, SystemStub *stub) = 0;
+};
+
+Gfx *GraphicsSoft_create();
+
+} // namespace Awe
+
+#endif