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engines/ultima/nuvie/screen/surface.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 NUVIE_SCREEN_SURFACE_H
+#define NUVIE_SCREEN_SURFACE_H
+
+#include "graphics/pixelformat.h"
+
+namespace Ultima {
+namespace Nuvie {
+
+class OpenGL;
+
+class RenderSurface {
+private:
+	uint8   *buffer;                // If the buffer is created, this is it
+	uint16  *zbuffer_priv;
+	Graphics::ManagedSurface *_rawSurface;
+	DisposeAfterUse::Flag _disposeSurface;
+public:
+	OpenGL  *opengl;                // OpenGL surface
+
+	// Pixel Format (also see 'Colour shifting values' later)
+	int     bytes_per_pixel;        // 2 or 4
+	int     bits_per_pixel;         // 16 or 32
+	int     format_type;            // 16, 555, 565, 32 or 888
+
+	uint8   *pixels;                // What we draw to
+	uint16  *zbuffer;               // Z Buffer
+
+	uint32  colour32[256];          // Palette as 16/32 bit colours
+
+	// Dimensions
+	uint32  w, h;                   // Surface width and height
+	uint32  pitch;                  // Surface pitch
+
+	// Guardband
+	uint32  gl, gr;                 // Guard left and right (left goes negetive)
+	uint32  gt, gb;                 // Guard top and bottom (up goes negetive)
+
+	uint32  lock_count;             // Number of locks on surface
+
+
+public:
+
+	// Default constructor for no created surface
+	RenderSurface();
+
+	// Constructor for custom buffer
+	RenderSurface(uint32 width, uint32 height, uint32 bpp, uint8 *p);
+
+	// Constructor for surface (with optional guardband)
+	RenderSurface(uint32 width, uint32 height, uint32 bpp, sint32 gb = 0);
+
+	// Constructor for sdl surface
+	RenderSurface(Graphics::ManagedSurface *surf);
+
+	// Constructor for opengl surface
+	RenderSurface(OpenGL *ogl);
+
+
+	// Destructor
+	virtual ~RenderSurface();
+
+	// Create a 16 Bit Z Buffer for this surface
+	void create_zbuffer();
+
+	// Set the buffer format from Graphics::PixelFormat
+	void set_format(const Graphics::PixelFormat *format);
+
+	// Set a custom 565 format
+	void set_format565(int rsft = 11, int gsft = 5, int bsft = 0);
+
+	// Set a custom 555 format
+	void set_format555(int rsft = 10, int gsft = 5, int bsft = 0);
+
+	// Set a custom 888 format
+	void set_format888(int rsft = 16, int gsft = 8, int bsft = 0);
+
+	// Get the pixel format
+	const Graphics::PixelFormat &getFormat() const {
+		return _rawSurface->format;
+	}
+
+	// Draw Lines
+	void draw_line(int sx, int sy, int ex, int ey, unsigned char col);
+	void draw_3d_line(int x, int y, int sx, int sy, int sz, int ex, int ey, int ez, unsigned char col);
+
+	// Colour shifting values
+	static uint8  Rloss;
+	static uint8  Gloss;
+	static uint8  Bloss;
+	static uint8  Rloss16;
+	static uint8  Gloss16;
+	static uint8  Bloss16;
+	static uint8  Rshift;
+	static uint8  Gshift;
+	static uint8  Bshift;
+	static uint32 Rmask;
+	static uint32 Gmask;
+	static uint32 Bmask;
+
+
+	//
+	// Shape Painting
+	//
+
+	// Display a shape. Non translucent
+	//virtual void display(Shape* s, int x, int y, FrameID frame) = 0;
+
+	// Display a shape. Translucent
+//	virtual void display_translucent(Shape* s, int x, int y, FrameID frame) = 0;
+
+	// Display a shape. Flipped
+//	virtual void display_flipped(Shape* s, int x, int y, FrameID frame, bool trans = false) = 0;
+
+
+
+	//FIX virtual void display8(uint8 *buf, int x, int y) = 0;
+
+	Graphics::ManagedSurface *get_sdl_surface();
+	const unsigned char *get_pixels();
+
+	static Graphics::ManagedSurface *createSurface(int w, int h,
+		const Graphics::PixelFormat &format);
+private:
+
+	// Draw Lines
+	void draw_line16(int sx, int sy, int ex, int ey, unsigned char col);
+
+	// Draw Lines
+	void draw_line32(int sx, int sy, int ex, int ey, unsigned char col);
+
+};
+
+RenderSurface *CreateRenderSurface(uint32 width, uint32 height, uint32 bpp, uint8 *p);
+RenderSurface *CreateRenderSurface(uint32 width, uint32 height, uint32 bpp, sint32 gb = 0);
+RenderSurface *CreateRenderSurface(Graphics::ManagedSurface *surf);
+RenderSurface *CreateRenderSurface(OpenGL *ogl);
+
+} // End of namespace Nuvie
+} // End of namespace Ultima
+
+#endif