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engines/icb/graphic_prims.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.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1999-2000 Revolution Software Ltd.
+ * This code is based on source code created by Revolution Software,
+ * used with permission.
+ *
+ * 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 ICB_GRAPIC_PRIMS
+#define ICB_GRAPIC_PRIMS
+
+#include "engines/icb/common/px_bitmap.h"
+#include "engines/icb/common/px_types.h"
+#include "engines/icb/p4_generic.h"
+
+namespace ICB {
+
+typedef float PXreal;
+typedef float PXfloat;
+typedef double PXdouble;
+
+typedef struct {
+	uint32 x1;
+	uint32 z1;
+	uint32 x2;
+	uint32 z2;
+} _line;
+
+typedef struct {
+	PXreal x;
+	PXreal z;
+} _point;
+
+// used in extrapolate line
+typedef struct {
+	PXdouble x;
+	PXdouble z;
+} _fpoint;
+
+typedef struct {
+	PXdouble x;
+	PXdouble z;
+} _float_point;
+
+// Might seem silly to create yet another rectangle structure, but this one is needed to help the PSX and the PC
+// share some of the Remora and inventory code.
+typedef struct {
+	int32 nX, nY;
+	uint32 nWidth, nHeight;
+} _PxBitmapRect;
+
+typedef LRECT DXrect;
+
+int32 twabs(int32 val);
+
+void Draw_horizontal_line(int32 xx, int32 yy, uint32 len, _rgb *pen, uint8 *ad, uint32 pitch);
+void Draw_vertical_line(int32 xx, int32 yy, uint32 len, _rgb *pen, uint8 *ad, uint32 pitch);
+void Fill_rect(int32 x, int32 y, int32 x2, int32 y2, uint32 pen, int32 z = 0);
+void General_draw_line_24_32(int16 x0, int16 y0, int16 x1, int16 y1, _rgb *colour, uint8 *myScreenBuffer, uint32 pitch, int32 surface_width = SCREEN_WIDTH,
+							 int32 surface_height = SCREEN_DEPTH);
+
+void General_poly_draw_24_32(_point *pVerts, int32 nNumVerts, _rgb sColour, bool8 bFill, uint8 *pSurface, int32 nPitch, int32 nSurfaceWidth, int32 nSurfaceHeight);
+
+// This draws a sprite to a surface, using the x, y found in the sprite itself.
+void SpriteFrameDraw(uint8 *pSurfaceBitmap, uint32 nPitch, uint32 nSurfaceWidth, uint32 nSurfaceHeight, _pxBitmap *pBitmap, uint32 nFrameNumber, uint32 *nTransparencyRef,
+					 uint8 nOpacity);
+
+// This draws a sprite to a surface, using a supplied x, y, so the sprite can be moved on the surface.
+void SpriteXYFrameDraw(uint8 *pSurfaceBitmap, uint32 nPitch, uint32 nSurfaceWidth, uint32 nSurfaceHeight, _pxBitmap *pBitmap, int32 nX, int32 nY, uint32 nFrameNumber,
+					   bool8 bCentre, uint32 *nTransparencyRef, uint8 nOpacity);
+
+// These all make LRECTs (needed by Direct-X) from various sources.
+LRECT ConvertPxBitmapRectToRECT(const _PxBitmapRect &sBitmapRect);
+
+// Additive gouraud line .... what else ?
+void AdditiveGouraudLine(int16 x0, int16 y0, _rgb c0, int16 x1, int16 y1, _rgb c1, uint32 surface_id);
+void BlendedLine(int32 x0, int32 y0, int32 x1, int32 y1, _rgb c, uint32 surface_id);
+void BlendedLine(int32 x0, int32 y0, int32 x1, int32 y1, _rgb c, int32 surface_width, int32 surface_height, uint32 pitch, uint8 *surface);
+
+DXrect MakeRECTFromSpriteSizes(int32 nX, int32 nY, uint32 nWidth, uint32 nHeight);
+
+} // End of namespace ICB
+
+#endif // #ifndef _GRAPIC_PRIMS