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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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "graphics/primitives.h"
#include "sci/engine/seg_manager.h"
#include "sci/graphics/paint32.h"
#include "sci/graphics/text32.h"
namespace Sci {
GfxPaint32::GfxPaint32(SegManager *segMan) :
_segMan(segMan) {}
reg_t GfxPaint32::kernelAddLine(const reg_t planeObject, const Common::Point &startPoint, const Common::Point &endPoint, const int16 priority, const uint8 color, const LineStyle style, const uint16 pattern, const uint8 thickness) {
Plane *plane = g_sci->_gfxFrameout->getPlanes().findByObject(planeObject);
if (plane == nullptr) {
error("kAddLine: Plane %04x:%04x not found", PRINT_REG(planeObject));
}
Common::Rect gameRect;
BitmapResource bitmap = makeLineBitmap(startPoint, endPoint, priority, color, style, pattern, thickness, gameRect);
CelInfo32 celInfo;
celInfo.type = kCelTypeMem;
celInfo.bitmap = bitmap.getObject();
// SSCI stores the line color on `celInfo`, even though
// this is not a `kCelTypeColor`, as a hack so that
// `kUpdateLine` can get the originally used color
celInfo.color = color;
ScreenItem *screenItem = new ScreenItem(planeObject, celInfo, Common::Rect(startPoint.x, startPoint.y, startPoint.x + bitmap.getWidth(), startPoint.y + bitmap.getHeight()));
screenItem->_priority = priority;
screenItem->_fixedPriority = true;
plane->_screenItemList.add(screenItem);
return screenItem->_object;
}
void GfxPaint32::kernelUpdateLine(ScreenItem *screenItem, Plane *plane, const Common::Point &startPoint, const Common::Point &endPoint, const int16 priority, const uint8 color, const LineStyle style, const uint16 pattern, const uint8 thickness) {
Common::Rect gameRect;
BitmapResource bitmap = makeLineBitmap(startPoint, endPoint, priority, color, style, pattern, thickness, gameRect);
_segMan->freeHunkEntry(screenItem->_celInfo.bitmap);
screenItem->_celInfo.bitmap = bitmap.getObject();
screenItem->_celInfo.color = color;
screenItem->_position = startPoint;
screenItem->_priority = priority;
screenItem->update();
}
void GfxPaint32::kernelDeleteLine(const reg_t screenItemObject, const reg_t planeObject) {
Plane *plane = g_sci->_gfxFrameout->getPlanes().findByObject(planeObject);
if (plane == nullptr) {
return;
}
ScreenItem *screenItem = plane->_screenItemList.findByObject(screenItemObject);
if (screenItem == nullptr) {
return;
}
_segMan->freeHunkEntry(screenItem->_celInfo.bitmap);
g_sci->_gfxFrameout->deleteScreenItem(screenItem, plane);
}
void GfxPaint32::plotter(int x, int y, int color, void *data) {
LineProperties &properties = *static_cast<LineProperties *>(data);
byte *pixels = properties.bitmap->getPixels();
const uint32 index = properties.bitmap->getWidth() * y + x;
if (index < properties.bitmap->getDataSize()) {
if (properties.solid) {
pixels[index] = (uint8)color;
return;
}
if (properties.horizontal && x != properties.lastAddress) {
properties.lastAddress = x;
++properties.patternIndex;
} else if (!properties.horizontal && y != properties.lastAddress) {
properties.lastAddress = y;
++properties.patternIndex;
}
if (properties.pattern[properties.patternIndex]) {
pixels[index] = (uint8)color;
}
if (properties.patternIndex == ARRAYSIZE(properties.pattern)) {
properties.patternIndex = 0;
}
} else {
warning("GfxPaint32::plotter: Attempted to write out of bounds (%u >= %u)", index, properties.bitmap->getDataSize());
}
}
BitmapResource GfxPaint32::makeLineBitmap(const Common::Point &startPoint, const Common::Point &endPoint, const int16 priority, const uint8 color, const LineStyle style, uint16 pattern, uint8 thickness, Common::Rect &outRect) {
const uint8 skipColor = color != 250 ? 250 : 0;
// Thickness is expected to be 2n+1
thickness = ((MAX((uint8)1, thickness) - 1) | 1);
const uint8 halfThickness = thickness >> 1;
outRect.left = (startPoint.x < endPoint.x ? startPoint.x : endPoint.x) - halfThickness;
outRect.top = (startPoint.y < endPoint.y ? startPoint.y : endPoint.y) - halfThickness;
outRect.right = (startPoint.x > endPoint.x ? startPoint.x : endPoint.x) + halfThickness + 1;
outRect.bottom = (startPoint.y > endPoint.y ? startPoint.y : endPoint.y) + halfThickness + 1;
BitmapResource bitmap(_segMan, outRect.width(), outRect.height(), skipColor, 0, 0, g_sci->_gfxFrameout->getCurrentBuffer().scriptWidth, g_sci->_gfxFrameout->getCurrentBuffer().scriptHeight, 0, false);
byte *pixels = bitmap.getPixels();
memset(pixels, skipColor, bitmap.getWidth() * bitmap.getHeight());
LineProperties properties;
properties.bitmap = &bitmap;
switch (style) {
case kLineStyleSolid:
pattern = 0xFFFF;
properties.solid = true;
break;
case kLineStyleDashed:
pattern = 0xFF00;
properties.solid = false;
break;
case kLineStylePattern:
properties.solid = pattern == 0xFFFF;
break;
}
const Common::Rect drawRect(
startPoint.x - outRect.left,
startPoint.y - outRect.top,
endPoint.x - outRect.left,
endPoint.y - outRect.top
);
if (!properties.solid) {
for (int i = 0; i < ARRAYSIZE(properties.pattern); ++i) {
properties.pattern[i] = (pattern & 0x8000);
pattern <<= 1;
}
properties.patternIndex = 0;
properties.horizontal = ABS(drawRect.right - drawRect.left) > ABS(drawRect.bottom - drawRect.top);
properties.lastAddress = properties.horizontal ? drawRect.left : drawRect.top;
}
if (thickness <= 1) {
Graphics::drawLine(drawRect.left, drawRect.top, drawRect.right, drawRect.bottom, color, plotter, &properties);
} else {
Graphics::drawThickLine2(drawRect.left, drawRect.top, drawRect.right, drawRect.bottom, thickness, color, plotter, &properties);
}
return bitmap;
}
} // End of namespace Sci
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