mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-28 20:55:19 +00:00
458 lines
11 KiB
C++
458 lines
11 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "cine/cine.h"
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#include "cine/bg.h"
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#include "cine/various.h"
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#include "common/endian.h"
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#include "common/system.h"
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#include "graphics/cursorman.h"
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namespace Cine {
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uint16 c_palette[256];
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byte colorMode256 = 0;
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byte palette256[256 * 3];
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byte *screenBuffer;
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byte *page1Raw;
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byte *page2Raw;
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byte *page3Raw;
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static const byte mouseCursorNormal[] = {
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0x00, 0x00, 0x40, 0x00, 0x60, 0x00, 0x70, 0x00,
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0x78, 0x00, 0x7C, 0x00, 0x7E, 0x00, 0x7F, 0x00,
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0x7F, 0x80, 0x7C, 0x00, 0x6C, 0x00, 0x46, 0x00,
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0x06, 0x00, 0x03, 0x00, 0x03, 0x00, 0x00, 0x00,
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0xC0, 0x00, 0xE0, 0x00, 0xF0, 0x00, 0xF8, 0x00,
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0xFC, 0x00, 0xFE, 0x00, 0xFF, 0x00, 0xFF, 0x80,
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0xFF, 0xC0, 0xFF, 0xC0, 0xFE, 0x00, 0xFF, 0x00,
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0xCF, 0x00, 0x07, 0x80, 0x07, 0x80, 0x03, 0x80
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};
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static const byte mouseCursorDisk[] = {
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0x7F, 0xFC, 0x9F, 0x12, 0x9F, 0x12, 0x9F, 0x12,
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0x9F, 0x12, 0x9F, 0xE2, 0x80, 0x02, 0x9F, 0xF2,
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0xA0, 0x0A, 0xA0, 0x0A, 0xA0, 0x0A, 0xA0, 0x0A,
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0xA0, 0x0A, 0xA0, 0x0A, 0x7F, 0xFC, 0x00, 0x00,
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0x7F, 0xFC, 0xFF, 0xFE, 0xFF, 0xFE, 0xFF, 0xFE,
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0xFF, 0xFE, 0xFF, 0xFE, 0xFF, 0xFE, 0xFF, 0xFE,
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0xFF, 0xFE, 0xFF, 0xFE, 0xFF, 0xFE, 0xFF, 0xFE,
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0xFF, 0xFE, 0xFF, 0xFE, 0x7F, 0xFC, 0x00, 0x00
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};
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static const byte mouseCursorCross[] = {
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0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
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0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x7C, 0x7C,
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0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
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0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x03, 0x80, 0x03, 0x80, 0x03, 0x80, 0x03, 0x80,
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0x03, 0x80, 0x03, 0x80, 0xFF, 0xFE, 0xFE, 0xFE,
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0xFF, 0xFE, 0x03, 0x80, 0x03, 0x80, 0x03, 0x80,
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0x03, 0x80, 0x03, 0x80, 0x03, 0x80, 0x00, 0x00
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};
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static const struct MouseCursor {
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int hotspotX;
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int hotspotY;
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const byte *bitmap;
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} mouseCursors[] = {
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{ 1, 1, mouseCursorNormal },
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{ 0, 0, mouseCursorDisk },
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{ 7, 7, mouseCursorCross }
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};
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static const byte cursorPalette[] = {
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0, 0, 0, 0xff,
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0xff, 0xff, 0xff, 0xff
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};
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void gfxInit() {
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screenBuffer = (byte *)malloc(320 * 200);
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page1Raw = (byte *)malloc(320 * 200);
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page2Raw = (byte *)malloc(320 * 200);
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page3Raw = (byte *)malloc(320 * 200);
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if (!screenBuffer || !page1Raw || !page2Raw || !page3Raw) {
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error("Unable to allocate offscreen buffers");
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}
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memset(page1Raw, 0, 320 * 200);
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memset(page2Raw, 0, 320 * 200);
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memset(page3Raw, 0, 320 * 200);
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memset(additionalBgTable, 0, sizeof(additionalBgTable));
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additionalBgTable[0] = page2Raw;
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additionalBgTable[8] = page3Raw;
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}
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void gfxDestroy() {
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free(screenBuffer);
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free(page1Raw);
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free(page2Raw);
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free(page3Raw);
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}
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void setMouseCursor(int cursor) {
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static int currentMouseCursor = -1;
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assert(cursor >= 0 && cursor < 3);
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if (currentMouseCursor != cursor) {
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byte mouseCursor[16 * 16];
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const MouseCursor *mc = &mouseCursors[cursor];
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const byte *src = mc->bitmap;
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for (int i = 0; i < 32; ++i) {
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int offs = i * 8;
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for (byte mask = 0x80; mask != 0; mask >>= 1) {
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if (src[0] & mask) {
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mouseCursor[offs] = 1;
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} else if (src[32] & mask) {
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mouseCursor[offs] = 0;
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} else {
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mouseCursor[offs] = 0xFF;
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}
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++offs;
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}
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++src;
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}
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CursorMan.replaceCursor(mouseCursor, 16, 16, mc->hotspotX, mc->hotspotY);
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CursorMan.replaceCursorPalette(cursorPalette, 0, 2);
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currentMouseCursor = cursor;
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}
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}
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static uint16 transformColor(uint16 baseColor, int8 r, int8 g, int8 b) {
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int8 oriR = CLIP( (baseColor & 0x007) + r, 0, 7);
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int8 oriG = CLIP(((baseColor & 0x070) >> 4) + g, 0, 7);
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int8 oriB = CLIP(((baseColor & 0x700) >> 8) + b, 0, 7);
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return oriR | (oriG << 4) | (oriB << 8);
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}
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void transformPaletteRange(byte startColor, byte stopColor, int8 r, int8 g, int8 b) {
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for (byte i = startColor; i <= stopColor; i++) {
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c_palette[i] = transformColor(tempPalette[i], b, g, r);
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}
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//gfxFlipPage(page2);
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}
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void gfxFillSprite(byte *spritePtr, uint16 width, uint16 height, byte *page, int16 x, int16 y, uint8 fillColor) {
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int16 i, j;
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for (i = 0; i < height; i++) {
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byte *destPtr = page + x + y * 320;
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destPtr += i * 320;
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for (j = 0; j < width * 8; j++) {
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if (x + j >= 0 && x + j < 320 && i + y >= 0
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&& i + y < 200) {
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if (!*(spritePtr++)) {
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*(destPtr++) = fillColor;
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} else {
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destPtr++;
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}
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} else {
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destPtr++;
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spritePtr++;
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}
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}
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}
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}
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void gfxDrawMaskedSprite(byte *spritePtr, byte *maskPtr, uint16 width, uint16 height, byte *page, int16 x, int16 y) {
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int16 i, j;
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for (i = 0; i < height; i++) {
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byte *destPtr = page + x + y * 320;
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destPtr += i * 320;
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for (j = 0; j < width * 8; j++) {
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if (x + j >= 0 && x + j < 320 && i + y >= 0 && i + y < 200 && *maskPtr == 0) {
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*destPtr = *spritePtr;
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}
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++destPtr;
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++spritePtr;
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++maskPtr;
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}
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}
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}
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void gfxUpdateSpriteMask(byte *spritePtr, byte *spriteMskPtr, int16 width, int16 height, byte *maskPtr,
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int16 maskWidth, int16 maskHeight, byte *bufferSprPtr, byte *bufferMskPtr, int16 xs, int16 ys, int16 xm, int16 ym, byte maskIdx) {
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int16 i, j, d, spritePitch, maskPitch;
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width *= 8;
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maskWidth *= 8;
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spritePitch = width;
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maskPitch = maskWidth;
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if (maskIdx == 0) {
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memcpy(bufferSprPtr, spritePtr, spritePitch * height);
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memcpy(bufferMskPtr, spriteMskPtr, spritePitch * height);
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}
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if (ys > ym) {
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d = ys - ym;
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maskPtr += d * maskPitch;
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maskHeight -= d;
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}
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if (maskHeight <= 0) {
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return;
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}
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if (xs > xm) {
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d = xs - xm;
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maskPtr += d;
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maskWidth -= d;
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}
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if (maskWidth <= 0) {
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return;
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}
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if (ys < ym) {
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d = ym - ys;
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spriteMskPtr += d * spritePitch;
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bufferMskPtr += d * spritePitch;
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height -= d;
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}
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if (height <= 0) {
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return;
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}
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if (xs < xm) {
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d = xm - xs;
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spriteMskPtr += d;
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bufferMskPtr += d;
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width -= d;
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}
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if (width <= 0) {
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return;
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}
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for (j = 0; j < MIN(maskHeight, height); ++j) {
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for (i = 0; i < MIN(maskWidth, width); ++i) {
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bufferMskPtr[i] |= maskPtr[i] ^ 1;
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}
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bufferMskPtr += spritePitch;
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maskPtr += maskPitch;
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}
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}
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void gfxDrawLine(int16 x1, int16 y1, int16 x2, int16 y2, byte color, byte *page) {
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if (x1 == x2) {
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if (y1 > y2) {
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SWAP(y1, y2);
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}
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while (y1 <= y2) {
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*(page + (y1 * 320 + x1)) = color;
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y1++;
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}
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} else {
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if (x1 > x2) {
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SWAP(x1, x2);
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}
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while (x1 <= x2) {
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*(page + (y1 * 320 + x1)) = color;
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x1++;
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}
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}
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}
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void gfxDrawPlainBoxRaw(int16 x1, int16 y1, int16 x2, int16 y2, byte color, byte *page) {
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int16 t;
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if (x1 > x2) {
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SWAP(x1, x2);
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}
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if (y1 > y2) {
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SWAP(y1, y2);
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}
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t = x1;
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while (y1 <= y2) {
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x1 = t;
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while (x1 <= x2) {
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*(page + y1 * 320 + x1) = color;
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x1++;
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}
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y1++;
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}
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}
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int16 gfxGetBit(int16 x, int16 y, byte *ptr, int16 width) {
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byte *ptrToData = (ptr) + y * width + x;
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if (x > width) {
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return 0;
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}
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if (*ptrToData) {
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return 0;
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}
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return 1;
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}
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void gfxResetRawPage(byte *pageRaw) {
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memset(pageRaw, 0, 320 * 200);
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}
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void gfxConvertSpriteToRaw(byte *dst, const byte *src, uint16 w, uint16 h) {
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for (int y = 0; y < h; ++y) {
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for (int x = 0; x < w / 8; ++x) {
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for (int bit = 0; bit < 16; ++bit) {
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uint8 color = 0;
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for (int p = 0; p < 4; ++p) {
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if (READ_BE_UINT16(src + p * 2) & (1 << (15 - bit))) {
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color |= 1 << p;
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}
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}
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*dst++ = color;
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}
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src += 8;
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}
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}
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}
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void gfxCopyRawPage(byte *source, byte *dest) {
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memcpy(dest, source, 320 * 200);
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}
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void gfxFlipRawPage(byte *frontBuffer) {
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byte *page = frontBuffer;
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int x, y, i;
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byte *pixels = (byte *) screenBuffer;
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byte c;
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byte pal[256 * 4];
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for (y = 0; y < 200; y++) {
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for (x = 0; x < 320; x++) {
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c = *(page++);
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if (!colorMode256) {
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c = c & 15;
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}
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pixels[x + 0 + y * 320] = c;
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}
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}
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if (colorMode256) {
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for (i = 0; i < 256; i++) {
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pal[i * 4 + 0] = palette256[i * 3 + 0];
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pal[i * 4 + 1] = palette256[i * 3 + 1];
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pal[i * 4 + 2] = palette256[i * 3 + 2];
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pal[i * 4 + 3] = 0;
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}
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g_system->setPalette(pal, 0, 256);
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} else {
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for (i = 0; i < 16; i++) {
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// This seems to match the output from DOSbox.
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pal[i * 4 + 2] = ((c_palette[i] & 0x00f) >> 0) * 32;
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pal[i * 4 + 1] = ((c_palette[i] & 0x0f0) >> 4) * 32;
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pal[i * 4 + 0] = ((c_palette[i] & 0xf00) >> 8) * 32;
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pal[i * 4 + 3] = 0;
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}
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g_system->setPalette(pal, 0, 16);
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}
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g_system->copyRectToScreen(screenBuffer, 320, 0, 0, 320, 200);
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}
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void drawSpriteRaw(byte *spritePtr, byte *maskPtr, int16 width, int16 height,
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byte *page, int16 x, int16 y) {
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int16 i, j;
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// FIXME: Is it a bug if maskPtr == NULL?
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if (!maskPtr)
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warning("drawSpriteRaw: maskPtr == NULL");
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for (i = 0; i < height; i++) {
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byte *destPtr = page + x + y * 320;
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destPtr += i * 320;
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for (j = 0; j < width * 8; j++) {
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if (((g_cine->getGameType() == Cine::GType_FW && (!maskPtr || !(*maskPtr))) || (g_cine->getGameType() == Cine::GType_OS)) && (x + j >= 0
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&& x + j < 320 && i + y >= 0 && i + y < 200)) {
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*(destPtr++) = *(spritePtr++);
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} else {
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destPtr++;
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spritePtr++;
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}
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if (maskPtr)
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maskPtr++;
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}
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}
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}
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void drawSpriteRaw2(byte *spritePtr, byte transColor, int16 width, int16 height,
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byte *page, int16 x, int16 y) {
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int16 i, j;
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for (i = 0; i < height; i++) {
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byte *destPtr = page + x + y * 320;
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destPtr += i * 320;
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for (j = 0; j < width * 8; j++) {
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if ((*(spritePtr) != transColor) && (x + j >= 0 && x + j < 320 && i + y >= 0 && i + y < 200)) {
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*(destPtr++) = *(spritePtr++);
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} else {
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destPtr++;
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spritePtr++;
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}
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}
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}
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}
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void fadeToBlack() {
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for (int i = 0; i < 8; i++) {
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if (colorMode256) {
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for (int j = 0; j < 256; j++) {
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palette256[j] = transformColor(palette256[j], -1, -1, -1);
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}
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} else {
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for (int j = 0; j < 16; j++) {
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c_palette[j] = transformColor(c_palette[j], -1, -1, -1);
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}
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}
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gfxFlipRawPage(page1Raw);
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g_system->updateScreen();
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g_system->delayMillis(50);
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}
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}
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void blitRawScreen(byte *frontBuffer) {
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gfxFlipRawPage(frontBuffer);
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}
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void flip(void) {
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blitRawScreen(page1Raw);
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if (fadeRequired) {
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memcpy(c_palette, tempPalette, sizeof(uint16) * 16);
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fadeRequired = false;
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}
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}
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} // End of namespace Cine
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