scummvm/scumm/cursor.cpp
Eugene Sandulenko 51f8aa50b1 Combine Win32 and Mac resource extractors (used for cursors in latter HE) as
only one of them can exist at the same time. Also it saves code and adds
caching to Mac resource extractor.

svn-id: r18169
2005-05-18 15:57:16 +00:00

496 lines
13 KiB
C++

/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2005 The ScummVM project
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "common/system.h"
#include "common/util.h"
#include "scumm/bomp.h"
#include "scumm/charset.h"
#include "scumm/intern.h"
#include "scumm/object.h"
#include "scumm/resource_v7he.h"
#include "scumm/saveload.h"
#include "scumm/scumm.h"
namespace Scumm {
/*
* Mouse cursor cycle colors (for the default crosshair).
*/
static const byte default_v1_cursor_colors[4] = {
1, 1, 12, 11
};
static const byte default_cursor_colors[4] = {
15, 15, 7, 8
};
static const uint16 default_cursor_images[4][16] = {
/* cross-hair */
{ 0x0080, 0x0080, 0x0080, 0x0080, 0x0080, 0x0080, 0x0000, 0x7e3f,
0x0000, 0x0080, 0x0080, 0x0080, 0x0080, 0x0080, 0x0080, 0x0000 },
/* hourglass */
{ 0x0000, 0x7ffe, 0x6006, 0x300c, 0x1818, 0x0c30, 0x0660, 0x03c0,
0x0660, 0x0c30, 0x1998, 0x33cc, 0x67e6, 0x7ffe, 0x0000, 0x0000 },
/* arrow */
{ 0x0000, 0x4000, 0x6000, 0x7000, 0x7800, 0x7c00, 0x7e00, 0x7f00,
0x7f80, 0x78c0, 0x7c00, 0x4600, 0x0600, 0x0300, 0x0300, 0x0180 },
/* hand */
{ 0x1e00, 0x1200, 0x1200, 0x1200, 0x1200, 0x13ff, 0x1249, 0x1249,
0xf249, 0x9001, 0x9001, 0x9001, 0x8001, 0x8001, 0x8001, 0xffff },
};
static const byte default_cursor_hotspots[10] = {
8, 7, 8, 7, 1, 1, 5, 0,
8, 7, //zak256
};
static const uint16 default_he_cursor[64] = {
0x0000, 0x0000, 0x3800, 0x0000, 0x7e00, 0x0000, 0x5f80, 0x0000,
0x5fe0, 0x0000, 0x2ff8, 0x0000, 0x27fe, 0x0000, 0x17ff, 0x8000,
0x13ff, 0xe000, 0x09ff, 0xf000, 0x09ff, 0xf800, 0x04ff, 0xf800,
0x047f, 0xf000, 0x027f, 0xe000, 0x023f, 0xf000, 0x011f, 0xf800,
0x0111, 0xfc00, 0x0080, 0xfc00, 0x0084, 0x0c00, 0x004a, 0x0800,
0x0031, 0x1000, 0x0000, 0xe000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
};
ScummEngine_v5::ScummEngine_v5(GameDetector *detector, OSystem *syst, const ScummGameSettings &gs, uint8 md5sum[16])
: ScummEngine(detector, syst, gs, md5sum) {
for (int i = 0; i < 4; i++) {
memcpy(_cursorImages[i], default_cursor_images[i], 32);
}
memcpy(_cursorHotspots, default_cursor_hotspots, 8);
}
void ScummEngine::setupCursor() {
_cursor.animate = 1;
}
void ScummEngine_v5::animateCursor() {
if (_cursor.animate) {
if (!(_cursor.animateIndex & 0x1)) {
setBuiltinCursor((_cursor.animateIndex >> 1) & 3);
}
_cursor.animateIndex++;
}
}
void ScummEngine_v6::setCursorHotspot(int x, int y) {
_cursor.hotspotX = x;
_cursor.hotspotY = y;
}
void ScummEngine_v6::setCursorTransparency(int a) {
int i, size;
size = _cursor.width * _cursor.height;
for (i = 0; i < size; i++)
if (_grabbedCursor[i] == (byte)a)
_grabbedCursor[i] = 0xFF;
updateCursor();
}
void ScummEngine::updateCursor() {
_system->setMouseCursor(_grabbedCursor, _cursor.width, _cursor.height,
_cursor.hotspotX, _cursor.hotspotY,
(_platform == Common::kPlatformNES ? _grabbedCursor[63] : 255),
(_heversion == 70 ? 2 : 1));
}
void ScummEngine_v6::grabCursor(int x, int y, int w, int h) {
VirtScreen *vs = findVirtScreen(y);
if (vs == NULL) {
warning("grabCursor: invalid Y %d", y);
return;
}
setCursorFromBuffer((byte *)vs->pixels + (y - vs->topline) * vs->pitch + x, w, h, vs->pitch);
}
void ScummEngine::setCursorFromBuffer(byte *ptr, int width, int height, int pitch) {
uint size;
byte *dst;
size = width * height;
if (size > sizeof(_grabbedCursor))
error("grabCursor: grabbed cursor too big");
_cursor.width = width;
_cursor.height = height;
_cursor.animate = 0;
dst = _grabbedCursor;
for (; height; height--) {
memcpy(dst, ptr, width);
dst += width;
ptr += pitch;
}
updateCursor();
}
#ifndef DISABLE_HE
void ScummEngine_v70he::setCursorFromImg(uint img, uint room, uint imgindex) {
_resExtractor->setCursor(img);
}
void ScummEngine_v90he::setDefaultCursor() {
const uint16 *src;
int i, j;
static byte palette[] = { 0xff, 0xff, 0xff, 0,
0, 0, 0, 0};
memset(_grabbedCursor, 0xFF, sizeof(_grabbedCursor));
_cursor.hotspotX = _cursor.hotspotY = 2;
src = default_he_cursor;
_cursor.width = 32;
_cursor.height = 32;
for (i = 0; i < 32; i++) {
for (j = 0; j < 32; j++) {
if (*src & (1 << (15 - (j % 16))))
_grabbedCursor[32 * i + j] = 0xfe;
if (j == 15)
src++;
}
src++;
}
// Since white color position is not guaranteed
// we setup our own palette if supported by backend
if (_system->hasFeature(OSystem::kFeatureCursorHasPalette))
_system->setCursorPalette(palette, 0xfe, 2);
updateCursor();
}
#endif
void ScummEngine_v6::setCursorFromImg(uint img, uint room, uint imgindex) {
int w, h;
const byte *dataptr, *bomp;
uint32 size;
FindObjectInRoom foir;
const ImageHeader *imhd;
if (room == (uint) - 1)
room = getObjectRoom(img);
findObjectInRoom(&foir, foCodeHeader | foImageHeader | foCheckAlreadyLoaded, img, room);
imhd = (const ImageHeader *)findResourceData(MKID('IMHD'), foir.obim);
if (_version == 8) {
setCursorHotspot(READ_LE_UINT32(&imhd->v8.hotspot[0].x),
READ_LE_UINT32(&imhd->v8.hotspot[0].y));
w = READ_LE_UINT32(&imhd->v8.width) / 8;
h = READ_LE_UINT32(&imhd->v8.height) / 8;
} else if (_version == 7) {
setCursorHotspot(READ_LE_UINT16(&imhd->v7.hotspot[0].x),
READ_LE_UINT16(&imhd->v7.hotspot[0].y));
w = READ_LE_UINT16(&imhd->v7.width) / 8;
h = READ_LE_UINT16(&imhd->v7.height) / 8;
} else {
if (_heversion == 0) {
setCursorHotspot(READ_LE_UINT16(&imhd->old.hotspot[0].x),
READ_LE_UINT16(&imhd->old.hotspot[0].y));
}
w = READ_LE_UINT16(&foir.cdhd->v6.w) / 8;
h = READ_LE_UINT16(&foir.cdhd->v6.h) / 8;
}
dataptr = getObjectImage(foir.obim, imgindex);
assert(dataptr);
if (_version == 8) {
bomp = dataptr;
} else {
size = READ_BE_UINT32(dataptr + 4);
if (size > sizeof(_grabbedCursor))
error("setCursorFromImg: Cursor image too large");
bomp = findResource(MKID('BOMP'), dataptr);
}
if (bomp != NULL)
useBompCursor(bomp, w, h);
else
useIm01Cursor(dataptr, w, h);
}
void ScummEngine_v6::useIm01Cursor(const byte *im, int w, int h) {
VirtScreen *vs = &virtscr[0];
byte *buf, *dst;
const byte *src;
int i;
w *= 8;
h *= 8;
// Backup the screen content
dst = buf = (byte *)malloc(w * h);
src = vs->getPixels(0, 0);
for (i = 0; i < h; i++) {
memcpy(dst, src, w);
dst += w;
src += vs->pitch;
}
// Do some drawing
drawBox(0, 0, w - 1, h - 1, 0xFF);
vs->hasTwoBuffers = false;
gdi.disableZBuffer();
gdi.drawBitmap(im, vs, _screenStartStrip, 0, w, h, 0, w / 8, 0);
vs->hasTwoBuffers = true;
gdi.enableZBuffer();
// Grab the data we just drew and setup the cursor with it
setCursorFromBuffer(vs->getPixels(0, 0), w, h, vs->pitch);
// Restore the screen content
src = buf;
dst = vs->getPixels(0, 0);
for (i = 0; i < h; i++) {
memcpy(dst, src, w);
dst += vs->pitch;
src += w;
}
free(buf);
}
void ScummEngine_v6::useBompCursor(const byte *im, int width, int height) {
uint size;
width *= 8;
height *= 8;
size = width * height;
if (size > sizeof(_grabbedCursor))
error("useBompCursor: cursor too big (%d)", size);
_cursor.width = width;
_cursor.height = height;
_cursor.animate = 0;
// Skip the header
if (_version == 8) {
im += 16;
} else {
im += 18;
}
decompressBomp(_grabbedCursor, im, width, height);
updateCursor();
}
void ScummEngine_v5::redefineBuiltinCursorFromChar(int index, int chr) {
// Cursor image in both Looms are based on images from charset.
if (_gameId != GID_LOOM && _gameId != GID_LOOM256) {
// FIXME: Actually: is this opcode ever called by a non-Loom game?
// Which V3-V5 game besides Loom makes use of custom cursors, ever?
warning("V3--V5 SO_CURSOR_IMAGE(%d,%d) called - tell Fingolfin where you saw this!", index, chr);
}
assert(index >= 0 && index < 4);
// const int oldID = _charset->getCurID();
if (_version == 3) {
_charset->setCurID(0);
} else if (_version >= 4) {
_charset->setCurID(1);
}
Graphics::Surface s;
byte buf[16*16];
memset(buf, 123, 16*16);
s.pixels = buf;
s.w = _charset->getCharWidth(chr);
s.h = _charset->getFontHeight();
s.pitch = s.w;
assert(s.w <= 16 && s.h <= 16);
s.bytesPerPixel = 1;
_charset->drawChar(chr, s, 0, 0);
uint16 *ptr = _cursorImages[index];
memset(ptr, 0, 16 * sizeof(uint16));
for (int h = 0; h < s.h; h++) {
for (int w = 0; w < s.w; w++) {
if (buf[s.pitch * h + w] != 123)
*ptr |= 1 << (15 - w);
}
ptr++;
}
// _charset->setCurID(oldID);
}
void ScummEngine_v5::redefineBuiltinCursorHotspot(int index, int x, int y) {
// Cursor image in both Looms are based on images from charset.
if (_gameId != GID_LOOM && _gameId != GID_LOOM256) {
// FIXME: Actually: is this opcode ever called by a non-Loom game?
// Which V3-V5 game besides Loom makes use of custom cursors, ever?
warning("V3--V5 SO_CURSOR_HOTSPOT(%d,%d,%d) called - tell Fingolfin where you saw this!", index, x, y);
}
assert(index >= 0 && index < 4);
_cursorHotspots[index * 2] = x;
_cursorHotspots[index * 2 + 1] = y;
}
void ScummEngine_v5::setBuiltinCursor(int idx) {
int i, j;
byte color;
memset(_grabbedCursor, 0xFF, sizeof(_grabbedCursor));
if (_version == 1)
color = default_v1_cursor_colors[idx];
else
color = default_cursor_colors[idx];
if (_platform == Common::kPlatformNES) {
_cursor.width = 8;
_cursor.height = 8;
_cursor.hotspotX = 0;
_cursor.hotspotY = 0;
byte *dst = _grabbedCursor;
byte *src = &_NESPatTable[0][0xfa * 16];
byte *palette = _NESPalette[1];
for (i = 0; i < 8; i++) {
byte c0 = src[i];
byte c1 = src[i + 8];
for (j = 0; j < 8; j++)
*dst++ = palette[((c0 >> (7 - j)) & 1) | (((c1 >> (7 - j)) & 1) << 1) | ((idx == 3) ? 4 : 0)];
}
} else if (_version <= 2 && _platform == Common::kPlatformAmiga) {
_cursor.width = 15;
_cursor.height = 15;
_cursor.hotspotX = 7;
_cursor.hotspotY = 7;
byte *hotspot = _grabbedCursor + _cursor.hotspotY * _cursor.width + _cursor.hotspotX;
// Crosshair, symmetric
// TODO: Instead of setting this up via code, we should simply extend
// default_cursor_images to contain this shape.
for (i = 0; i < 5; i++) {
*(hotspot - 3 - i) = color;
*(hotspot + 3 + i) = color;
*(hotspot - _cursor.width * (3 + i)) = color;
*(hotspot + _cursor.width * (3 + i)) = color;
}
// Arrow heads, diagonal lines
for (i = 1; i <= 2; i++) {
*(hotspot - _cursor.width * i - (3 + i)) = color;
*(hotspot + _cursor.width * i - (3 + i)) = color;
*(hotspot - _cursor.width * i + (3 + i)) = color;
*(hotspot + _cursor.width * i + (3 + i)) = color;
*(hotspot - _cursor.width * (3 + i) - i) = color;
*(hotspot + _cursor.width * (3 + i) - i) = color;
*(hotspot - _cursor.width * (3 + i) + i) = color;
*(hotspot + _cursor.width * (3 + i) + i) = color;
}
} else if (_version <= 2) {
_cursor.width = 23;
_cursor.height = 21;
_cursor.hotspotX = 11;
_cursor.hotspotY = 10;
byte *hotspot = _grabbedCursor + _cursor.hotspotY * _cursor.width + _cursor.hotspotX;
// Crosshair, slightly assymetric
// TODO: Instead of setting this up via code, we should simply extend
// default_cursor_images to contain this shape.
for (i = 0; i < 7; i++) {
*(hotspot - 5 - i) = color;
*(hotspot + 5 + i) = color;
}
for (i = 0; i < 8; i++) {
*(hotspot - _cursor.width * (3 + i)) = color;
*(hotspot + _cursor.width * (3 + i)) = color;
}
// Arrow heads, diagonal lines
for (i = 1; i <= 3; i++) {
*(hotspot - _cursor.width * i - 5 - i) = color;
*(hotspot + _cursor.width * i - 5 - i) = color;
*(hotspot - _cursor.width * i + 5 + i) = color;
*(hotspot + _cursor.width * i + 5 + i) = color;
*(hotspot - _cursor.width * (i + 3) - i) = color;
*(hotspot - _cursor.width * (i + 3) + i) = color;
*(hotspot + _cursor.width * (i + 3) - i) = color;
*(hotspot + _cursor.width * (i + 3) + i) = color;
}
// Final touches
*(hotspot - _cursor.width - 7) = color;
*(hotspot - _cursor.width + 7) = color;
*(hotspot + _cursor.width - 7) = color;
*(hotspot + _cursor.width + 7) = color;
*(hotspot - (_cursor.width * 5) - 1) = color;
*(hotspot - (_cursor.width * 5) + 1) = color;
*(hotspot + (_cursor.width * 5) - 1) = color;
*(hotspot + (_cursor.width * 5) + 1) = color;
} else {
const uint16 *src;
_cursor.hotspotX = _cursorHotspots[2 * _currentCursor];
_cursor.hotspotY = _cursorHotspots[2 * _currentCursor + 1];
src = _cursorImages[_currentCursor];
_cursor.width = 16;
_cursor.height = 16;
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j++) {
if (src[i] & (1 << j))
_grabbedCursor[16 * i + 15 - j] = color;
}
}
}
updateCursor();
}
} // End of namespace Scumm