/
VectorRendererSpec.cpp
1949 lines (1601 loc) · 54.3 KB
/
VectorRendererSpec.cpp
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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 "common/util.h"
#include "common/system.h"
#include "common/frac.h"
#include "graphics/surface.h"
#include "graphics/colormasks.h"
#include "gui/ThemeEngine.h"
#include "graphics/VectorRenderer.h"
#include "graphics/VectorRendererSpec.h"
#define VECTOR_RENDERER_FAST_TRIANGLES
/** Fixed point SQUARE ROOT **/
inline frac_t fp_sqroot(uint32 x) {
#if 0
// Use the FPU to compute the square root and then convert it to fixed
// point data. On systems with a fast FPU, this can be a lot faster than
// the integer based code below - on my system roughly 50x! However, on
// systems without an FPU, the converse might be true.
// For now, we only use the integer based code.
return doubleToFrac(sqrt((double)x));
#else
// The code below wants to use a lot of registers, which is not good on
// x86 processors. By taking advantage of the fact the the input value is
// an integer, it might be possible to improve this. Furthermore, we could
// take advantage of the fact that we call this function several times on
// decreasing values. By feeding it the sqrt of the previous old x, as well
// as the old x, it should be possible to compute the correct sqrt with far
// fewer than 23 iterations.
register uint32 root, remHI, remLO, testDIV, count;
root = 0;
remHI = 0;
remLO = x << 16;
count = 23;
do {
remHI = (remHI << 2) | (remLO >> 30);
remLO <<= 2;
root <<= 1;
testDIV = (root << 1) + 1;
if (remHI >= testDIV) {
remHI -= testDIV;
root++;
}
} while (count--);
return root;
#endif
}
/*
HELPER MACROS for Bresenham's circle drawing algorithm
Note the proper spelling on this header.
*/
#define BE_ALGORITHM() do { \
if (f >= 0) { \
y--; \
ddF_y += 2; \
f += ddF_y; \
py -= pitch; \
} \
px += pitch; \
ddF_x += 2; \
f += ddF_x + 1; \
} while(0)
#define BE_DRAWCIRCLE(ptr1,ptr2,ptr3,ptr4,x,y,px,py) do { \
*(ptr1 + (y) - (px)) = color; \
*(ptr1 + (x) - (py)) = color; \
*(ptr2 - (x) - (py)) = color; \
*(ptr2 - (y) - (px)) = color; \
*(ptr3 - (y) + (px)) = color; \
*(ptr3 - (x) + (py)) = color; \
*(ptr4 + (x) + (py)) = color; \
*(ptr4 + (y) + (px)) = color; \
} while (0)
#define BE_DRAWCIRCLE_BCOLOR(ptr1,ptr2,ptr3,ptr4,x,y,px,py) do { \
*(ptr1 + (y) - (px)) = color1; \
*(ptr1 + (x) - (py)) = color1; \
*(ptr2 - (x) - (py)) = color1; \
*(ptr2 - (y) - (px)) = color1; \
*(ptr3 - (y) + (px)) = color1; \
*(ptr3 - (x) + (py)) = color1; \
*(ptr4 + (x) + (py)) = color2; \
*(ptr4 + (y) + (px)) = color2; \
} while (0)
#define BE_DRAWCIRCLE_XCOLOR(ptr1,ptr2,ptr3,ptr4,x,y,px,py) do { \
*(ptr1 + (y) - (px)) = color1; \
*(ptr1 + (x) - (py)) = color2; \
*(ptr2 - (x) - (py)) = color2; \
*(ptr2 - (y) - (px)) = color1; \
*(ptr3 - (y) + (px)) = color3; \
*(ptr3 - (x) + (py)) = color4; \
*(ptr4 + (x) + (py)) = color4; \
*(ptr4 + (y) + (px)) = color3; \
} while (0)
#define BE_RESET() do { \
f = 1 - r; \
ddF_x = 0; ddF_y = -2 * r; \
x = 0; y = r; px = 0; py = pitch * r; \
} while (0)
#define TRIANGLE_MAINX() \
if (error_term >= 0) { \
ptr_right += pitch; \
ptr_left += pitch; \
error_term += dysub; \
} else { \
error_term += ddy; \
} \
ptr_right++; \
ptr_left--;
#define TRIANGLE_MAINY() \
if (error_term >= 0) { \
ptr_right++; \
ptr_left--; \
error_term += dxsub; \
} else { \
error_term += ddx; \
} \
ptr_right += pitch; \
ptr_left += pitch;
/** HELPER MACROS for WU's circle drawing algorithm **/
#define WU_DRAWCIRCLE(ptr1,ptr2,ptr3,ptr4,x,y,px,py,a) do { \
this->blendPixelPtr(ptr1 + (y) - (px), color, a); \
this->blendPixelPtr(ptr1 + (x) - (py), color, a); \
this->blendPixelPtr(ptr2 - (x) - (py), color, a); \
this->blendPixelPtr(ptr2 - (y) - (px), color, a); \
this->blendPixelPtr(ptr3 - (y) + (px), color, a); \
this->blendPixelPtr(ptr3 - (x) + (py), color, a); \
this->blendPixelPtr(ptr4 + (x) + (py), color, a); \
this->blendPixelPtr(ptr4 + (y) + (px), color, a); \
} while (0)
// Color depending on y
// Note: this is only for the outer pixels
#define WU_DRAWCIRCLE_XCOLOR(ptr1,ptr2,ptr3,ptr4,x,y,px,py,a,func) do { \
this->func(ptr1 + (y) - (px), color1, a); \
this->func(ptr1 + (x) - (py), color2, a); \
this->func(ptr2 - (x) - (py), color2, a); \
this->func(ptr2 - (y) - (px), color1, a); \
this->func(ptr3 - (y) + (px), color3, a); \
this->func(ptr3 - (x) + (py), color4, a); \
this->func(ptr4 + (x) + (py), color4, a); \
this->func(ptr4 + (y) + (px), color3, a); \
} while (0)
// Color depending on corner (tl,tr,bl: color1, br: color2)
// Note: this is only for the outer pixels
#define WU_DRAWCIRCLE_BCOLOR(ptr1,ptr2,ptr3,ptr4,x,y,px,py,a) do { \
this->blendPixelPtr(ptr1 + (y) - (px), color1, a); \
this->blendPixelPtr(ptr1 + (x) - (py), color1, a); \
this->blendPixelPtr(ptr2 - (x) - (py), color1, a); \
this->blendPixelPtr(ptr2 - (y) - (px), color1, a); \
this->blendPixelPtr(ptr3 - (y) + (px), color1, a); \
this->blendPixelPtr(ptr3 - (x) + (py), color1, a); \
this->blendPixelPtr(ptr4 + (x) + (py), color2, a); \
this->blendPixelPtr(ptr4 + (y) + (px), color2, a); \
} while (0)
// optimized Wu's algorithm
#define WU_ALGORITHM() do { \
oldT = T; \
T = fp_sqroot(rsq - y*y) ^ 0xFFFF; \
py += pitch; \
if (T < oldT) { \
x--; px -= pitch; \
} \
a2 = (T >> 8); \
a1 = ~a2; \
} while (0)
namespace Graphics {
/**
* Fills several pixels in a row with a given color.
*
* This is a replacement function for Common::fill, using an unrolled
* loop to maximize performance on most architectures.
* This function may (and should) be overloaded in any child renderers
* for portable platforms with platform-specific assembly code.
*
* This fill operation is extensively used throughout the renderer, so this
* counts as one of the main bottlenecks. Please replace it with assembly
* when possible!
*
* @param first Pointer to the first pixel to fill.
* @param last Pointer to the last pixel to fill.
* @param color Color of the pixel
*/
template<typename PixelType>
void colorFill(PixelType *first, PixelType *last, PixelType color) {
register int count = (last - first);
if (!count)
return;
register int n = (count + 7) >> 3;
switch (count % 8) {
case 0: do {
*first++ = color;
case 7: *first++ = color;
case 6: *first++ = color;
case 5: *first++ = color;
case 4: *first++ = color;
case 3: *first++ = color;
case 2: *first++ = color;
case 1: *first++ = color;
} while (--n > 0);
}
}
VectorRenderer *createRenderer(int mode) {
#ifdef DISABLE_FANCY_THEMES
assert(mode == GUI::ThemeEngine::kGfxStandard16bit);
#endif
PixelFormat format = g_system->getOverlayFormat();
switch (mode) {
case GUI::ThemeEngine::kGfxStandard16bit:
return new VectorRendererSpec<OverlayColor>(format);
#ifndef DISABLE_FANCY_THEMES
case GUI::ThemeEngine::kGfxAntialias16bit:
return new VectorRendererAA<OverlayColor>(format);
#endif
default:
break;
}
return 0;
}
template<typename PixelType>
VectorRendererSpec<PixelType>::
VectorRendererSpec(PixelFormat format) :
_format(format),
_redMask((0xFF >> format.rLoss) << format.rShift),
_greenMask((0xFF >> format.gLoss) << format.gShift),
_blueMask((0xFF >> format.bLoss) << format.bShift),
_alphaMask((0xFF >> format.aLoss) << format.aShift) {
_bitmapAlphaColor = _format.RGBToColor(255, 0, 255);
}
/****************************
* Gradient-related methods *
****************************/
template<typename PixelType>
void VectorRendererSpec<PixelType>::
setGradientColors(uint8 r1, uint8 g1, uint8 b1, uint8 r2, uint8 g2, uint8 b2) {
_gradientEnd = _format.RGBToColor(r2, g2, b2);
_gradientStart = _format.RGBToColor(r1, g1, b1);
_gradientBytes[0] = (_gradientEnd & _redMask) - (_gradientStart & _redMask);
_gradientBytes[1] = (_gradientEnd & _greenMask) - (_gradientStart & _greenMask);
_gradientBytes[2] = (_gradientEnd & _blueMask) - (_gradientStart & _blueMask);
}
template<typename PixelType>
inline PixelType VectorRendererSpec<PixelType>::
calcGradient(uint32 pos, uint32 max) {
PixelType output = 0;
pos = (MIN(pos * Base::_gradientFactor, max) << 12) / max;
output |= ((_gradientStart & _redMask) + ((_gradientBytes[0] * pos) >> 12)) & _redMask;
output |= ((_gradientStart & _greenMask) + ((_gradientBytes[1] * pos) >> 12)) & _greenMask;
output |= ((_gradientStart & _blueMask) + ((_gradientBytes[2] * pos) >> 12)) & _blueMask;
output |= _alphaMask;
return output;
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
precalcGradient(int h) {
PixelType prevcolor = 0, color;
_gradCache.resize(0);
_gradIndexes.resize(0);
for (int i = 0; i < h + 2; i++) {
color = calcGradient(i, h);
if (color != prevcolor || i == 0 || i > h - 1) {
prevcolor = color;
_gradCache.push_back(color);
_gradIndexes.push_back(i);
}
}
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
gradientFill(PixelType *ptr, int width, int x, int y) {
bool ox = ((y & 1) == 1);
int stripSize;
int curGrad = 0;
while (_gradIndexes[curGrad + 1] <= y)
curGrad++;
stripSize = _gradIndexes[curGrad + 1] - _gradIndexes[curGrad];
int grad = (((y - _gradIndexes[curGrad]) % stripSize) << 2) / stripSize;
// Dithering:
// +--+ +--+ +--+ +--+
// | | | | | *| | *|
// | | | *| |* | |**|
// +--+ +--+ +--+ +--+
// 0 1 2 3
if (grad == 0 ||
_gradCache[curGrad] == _gradCache[curGrad + 1] || // no color change
stripSize < 2) { // the stip is small
colorFill<PixelType>(ptr, ptr + width, _gradCache[curGrad]);
} else if (grad == 3 && ox) {
colorFill<PixelType>(ptr, ptr + width, _gradCache[curGrad + 1]);
} else {
for (int j = x; j < x + width; j++, ptr++) {
bool oy = ((j & 1) == 1);
if ((ox && oy) ||
((grad == 2 || grad == 3) && ox && !oy) ||
(grad == 3 && oy))
*ptr = _gradCache[curGrad + 1];
else
*ptr = _gradCache[curGrad];
}
}
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
fillSurface() {
byte *ptr = (byte *)_activeSurface->getBasePtr(0, 0);
int h = _activeSurface->h;
int pitch = _activeSurface->pitch;
if (Base::_fillMode == kFillBackground) {
colorFill<PixelType>((PixelType *)ptr, (PixelType *)(ptr + pitch * h), _bgColor);
} else if (Base::_fillMode == kFillForeground) {
colorFill<PixelType>((PixelType *)ptr, (PixelType *)(ptr + pitch * h), _fgColor);
} else if (Base::_fillMode == kFillGradient) {
precalcGradient(h);
for (int i = 0; i < h; i++) {
gradientFill((PixelType *)ptr, _activeSurface->w, 0, i);
ptr += pitch;
}
}
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
copyFrame(OSystem *sys, const Common::Rect &r) {
sys->copyRectToOverlay(
(const OverlayColor *)_activeSurface->getBasePtr(r.left, r.top),
_activeSurface->pitch / _activeSurface->format.bytesPerPixel,
r.left, r.top, r.width(), r.height()
);
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
blitSurface(const Graphics::Surface *source, const Common::Rect &r) {
assert(source->w == _activeSurface->w && source->h == _activeSurface->h);
byte *dst_ptr = (byte *)_activeSurface->getBasePtr(r.left, r.top);
const byte *src_ptr = (const byte *)source->getBasePtr(r.left, r.top);
const int dst_pitch = _activeSurface->pitch;
const int src_pitch = source->pitch;
int h = r.height();
const int w = r.width() * sizeof(PixelType);
while (h--) {
memcpy(dst_ptr, src_ptr, w);
dst_ptr += dst_pitch;
src_ptr += src_pitch;
}
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
blitSubSurface(const Graphics::Surface *source, const Common::Rect &r) {
byte *dst_ptr = (byte *)_activeSurface->getBasePtr(r.left, r.top);
const byte *src_ptr = (const byte *)source->getBasePtr(0, 0);
const int dst_pitch = _activeSurface->pitch;
const int src_pitch = source->pitch;
int h = r.height();
const int w = r.width() * sizeof(PixelType);
while (h--) {
memcpy(dst_ptr, src_ptr, w);
dst_ptr += dst_pitch;
src_ptr += src_pitch;
}
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
blitAlphaBitmap(const Graphics::Surface *source, const Common::Rect &r) {
int16 x = r.left;
int16 y = r.top;
if (r.width() > source->w)
x = x + (r.width() >> 1) - (source->w >> 1);
if (r.height() > source->h)
y = y + (r.height() >> 1) - (source->h >> 1);
PixelType *dst_ptr = (PixelType *)_activeSurface->getBasePtr(x, y);
const PixelType *src_ptr = (const PixelType *)source->getBasePtr(0, 0);
int dst_pitch = _activeSurface->pitch / _activeSurface->format.bytesPerPixel;
int src_pitch = source->pitch / source->format.bytesPerPixel;
int w, h = source->h;
while (h--) {
w = source->w;
while (w--) {
if (*src_ptr != _bitmapAlphaColor)
*dst_ptr = *src_ptr;
dst_ptr++;
src_ptr++;
}
dst_ptr = dst_ptr - source->w + dst_pitch;
src_ptr = src_ptr - source->w + src_pitch;
}
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
applyScreenShading(GUI::ThemeEngine::ShadingStyle shadingStyle) {
int pixels = _activeSurface->w * _activeSurface->h;
PixelType *ptr = (PixelType *)_activeSurface->getBasePtr(0, 0);
uint8 r, g, b;
uint lum;
// Mask to clear the last bit of every color component and all unused bits
const uint32 colorMask = ~((1 << _format.rShift) | (1 << _format.gShift) | (1 << _format.bShift) // R/G/B components
| (_format.aLoss == 8 ? 0 : (1 << _format.aShift)) // Alpha component
| ~(_alphaMask | _redMask | _greenMask | _blueMask)); // All unused bits
if (shadingStyle == GUI::ThemeEngine::kShadingDim) {
// TODO: Check how this interacts with kFeatureOverlaySupportsAlpha
for (int i = 0; i < pixels; ++i) {
*ptr = ((*ptr & colorMask) >> 1) | _alphaMask;
++ptr;
}
} else if (shadingStyle == GUI::ThemeEngine::kShadingLuminance) {
while (pixels--) {
_format.colorToRGB(*ptr, r, g, b);
lum = (r >> 2) + (g >> 1) + (b >> 3);
*ptr++ = _format.RGBToColor(lum, lum, lum);
}
}
}
template<typename PixelType>
inline void VectorRendererSpec<PixelType>::
blendPixelPtr(PixelType *ptr, PixelType color, uint8 alpha) {
int idst = *ptr;
int isrc = color;
*ptr = (PixelType)(
(_redMask & ((idst & _redMask) +
((int)(((int)(isrc & _redMask) -
(int)(idst & _redMask)) * alpha) >> 8))) |
(_greenMask & ((idst & _greenMask) +
((int)(((int)(isrc & _greenMask) -
(int)(idst & _greenMask)) * alpha) >> 8))) |
(_blueMask & ((idst & _blueMask) +
((int)(((int)(isrc & _blueMask) -
(int)(idst & _blueMask)) * alpha) >> 8))) |
(idst & _alphaMask));
}
template<typename PixelType>
inline void VectorRendererSpec<PixelType>::
blendPixelDestAlphaPtr(PixelType *ptr, PixelType color, uint8 alpha) {
int idst = *ptr;
// This function is only used for corner pixels in rounded rectangles, so
// the performance hit of this if shouldn't be too high.
// We're also ignoring the cases where dst has intermediate alpha.
if ((idst & _alphaMask) == 0) {
// set color and alpha channels
*ptr = (PixelType)(color & (_redMask | _greenMask | _blueMask)) |
((alpha >> _format.aLoss) << _format.aShift);
} else {
// blend color with background
blendPixelPtr(ptr, color, alpha);
}
}
template<typename PixelType>
inline void VectorRendererSpec<PixelType>::
darkenFill(PixelType *ptr, PixelType *end) {
PixelType mask = (PixelType)((3 << _format.rShift) | (3 << _format.gShift) | (3 << _format.bShift));
if (!g_system->hasFeature(OSystem::kFeatureOverlaySupportsAlpha)) {
// !kFeatureOverlaySupportsAlpha (but might have alpha bits)
while (ptr != end) {
*ptr = ((*ptr & ~mask) >> 2) | _alphaMask;
++ptr;
}
} else {
// kFeatureOverlaySupportsAlpha
// assuming at least 3 alpha bits
mask |= 3 << _format.aShift;
PixelType addA = (PixelType)(255 >> _format.aLoss) << _format.aShift;
addA -= (addA >> 2);
while (ptr != end) {
// Darken the colour, and increase the alpha
// (0% -> 75%, 100% -> 100%)
*ptr = (PixelType)(((*ptr & ~mask) >> 2) + addA);
++ptr;
}
}
}
/********************************************************************
********************************************************************
* Primitive shapes drawing - Public API calls - VectorRendererSpec *
********************************************************************
********************************************************************/
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawString(const Graphics::Font *font, const Common::String &text, const Common::Rect &area,
Graphics::TextAlign alignH, GUI::ThemeEngine::TextAlignVertical alignV, int deltax, bool ellipsis) {
int offset = area.top;
if (font->getFontHeight() < area.height()) {
switch (alignV) {
case GUI::ThemeEngine::kTextAlignVCenter:
offset = area.top + ((area.height() - font->getFontHeight()) >> 1);
break;
case GUI::ThemeEngine::kTextAlignVBottom:
offset = area.bottom - font->getFontHeight();
break;
default:
break;
}
}
font->drawString(_activeSurface, text, area.left, offset, area.width() - deltax, _fgColor, alignH, deltax, ellipsis);
}
/** LINES **/
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawLine(int x1, int y1, int x2, int y2) {
x1 = CLIP(x1, 0, (int)Base::_activeSurface->w);
x2 = CLIP(x2, 0, (int)Base::_activeSurface->w);
y1 = CLIP(y1, 0, (int)Base::_activeSurface->h);
y2 = CLIP(y2, 0, (int)Base::_activeSurface->h);
// we draw from top to bottom
if (y2 < y1) {
SWAP(x1, x2);
SWAP(y1, y2);
}
int dx = ABS(x2 - x1);
int dy = ABS(y2 - y1);
// this is a point, not a line. stoopid.
if (dy == 0 && dx == 0)
return;
if (Base::_strokeWidth == 0)
return;
PixelType *ptr = (PixelType *)_activeSurface->getBasePtr(x1, y1);
int pitch = _activeSurface->pitch / _activeSurface->format.bytesPerPixel;
int st = Base::_strokeWidth >> 1;
if (dy == 0) { // horizontal lines
// these can be filled really fast with a single memset.
colorFill<PixelType>(ptr, ptr + dx + 1, (PixelType)_fgColor);
for (int i = 0, p = pitch; i < st; ++i, p += pitch) {
colorFill<PixelType>(ptr + p, ptr + dx + 1 + p, (PixelType)_fgColor);
colorFill<PixelType>(ptr - p, ptr + dx + 1 - p, (PixelType)_fgColor);
}
} else if (dx == 0) { // vertical lines
// these ones use a static pitch increase.
while (y1++ <= y2) {
colorFill<PixelType>(ptr - st, ptr + st, (PixelType)_fgColor);
ptr += pitch;
}
} else if (ABS(dx) == ABS(dy)) { // diagonal lines
// these ones also use a fixed pitch increase
pitch += (x2 > x1) ? 1 : -1;
while (dy--) {
colorFill<PixelType>(ptr - st, ptr + st, (PixelType)_fgColor);
ptr += pitch;
}
} else { // generic lines, use the standard algorithm...
drawLineAlg(x1, y1, x2, y2, dx, dy, (PixelType)_fgColor);
}
}
/** CIRCLES **/
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawCircle(int x, int y, int r) {
if (x + r > Base::_activeSurface->w || y + r > Base::_activeSurface->h ||
x - r < 0 || y - r < 0 || x == 0 || y == 0 || r <= 0)
return;
if (Base::_fillMode != kFillDisabled && Base::_shadowOffset
&& x + r + Base::_shadowOffset < Base::_activeSurface->w
&& y + r + Base::_shadowOffset < Base::_activeSurface->h) {
drawCircleAlg(x + Base::_shadowOffset + 1, y + Base::_shadowOffset + 1, r, 0, kFillForeground);
}
switch (Base::_fillMode) {
case kFillDisabled:
if (Base::_strokeWidth)
drawCircleAlg(x, y, r, _fgColor, kFillDisabled);
break;
case kFillForeground:
drawCircleAlg(x, y, r, _fgColor, kFillForeground);
break;
case kFillBackground:
if (Base::_strokeWidth > 1) {
drawCircleAlg(x, y, r, _fgColor, kFillForeground);
drawCircleAlg(x, y, r - Base::_strokeWidth, _bgColor, kFillBackground);
} else {
drawCircleAlg(x, y, r, _bgColor, kFillBackground);
drawCircleAlg(x, y, r, _fgColor, kFillDisabled);
}
break;
case kFillGradient:
break;
}
}
/** SQUARES **/
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawSquare(int x, int y, int w, int h) {
if (x + w > Base::_activeSurface->w || y + h > Base::_activeSurface->h ||
w <= 0 || h <= 0 || x < 0 || y < 0)
return;
if (Base::_fillMode != kFillDisabled && Base::_shadowOffset
&& x + w + Base::_shadowOffset < Base::_activeSurface->w
&& y + h + Base::_shadowOffset < Base::_activeSurface->h) {
drawSquareShadow(x, y, w, h, Base::_shadowOffset);
}
switch (Base::_fillMode) {
case kFillDisabled:
if (Base::_strokeWidth)
drawSquareAlg(x, y, w, h, _fgColor, kFillDisabled);
break;
case kFillForeground:
drawSquareAlg(x, y, w, h, _fgColor, kFillForeground);
break;
case kFillBackground:
drawSquareAlg(x, y, w, h, _bgColor, kFillBackground);
drawSquareAlg(x, y, w, h, _fgColor, kFillDisabled);
break;
case kFillGradient:
VectorRendererSpec::drawSquareAlg(x, y, w, h, 0, kFillGradient);
if (Base::_strokeWidth)
drawSquareAlg(x, y, w, h, _fgColor, kFillDisabled);
break;
}
}
/** ROUNDED SQUARES **/
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawRoundedSquare(int x, int y, int r, int w, int h) {
if (x + w > Base::_activeSurface->w || y + h > Base::_activeSurface->h ||
w <= 0 || h <= 0 || x < 0 || y < 0 || r <= 0)
return;
if ((r * 2) > w || (r * 2) > h)
r = MIN(w /2, h / 2);
if (r <= 0)
return;
if (Base::_fillMode != kFillDisabled && Base::_shadowOffset
&& x + w + Base::_shadowOffset + 1 < Base::_activeSurface->w
&& y + h + Base::_shadowOffset + 1 < Base::_activeSurface->h) {
drawRoundedSquareShadow(x, y, r, w, h, Base::_shadowOffset);
}
drawRoundedSquareAlg(x, y, r, w, h, _fgColor, Base::_fillMode);
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawTab(int x, int y, int r, int w, int h) {
if (x + w > Base::_activeSurface->w || y + h > Base::_activeSurface->h ||
w <= 0 || h <= 0 || x < 0 || y < 0 || r > w || r > h)
return;
if (r == 0 && Base::_bevel > 0) {
drawBevelTabAlg(x, y, w, h, Base::_bevel, _bevelColor, _fgColor, (Base::_dynamicData >> 16), (Base::_dynamicData & 0xFFFF));
return;
}
if (r == 0) return;
switch (Base::_fillMode) {
case kFillDisabled:
return;
case kFillGradient:
case kFillBackground:
drawTabAlg(x, y, w, h, r, (Base::_fillMode == kFillBackground) ? _bgColor : _fgColor, Base::_fillMode);
if (Base::_strokeWidth)
drawTabAlg(x, y, w, h, r, _fgColor, kFillDisabled, (Base::_dynamicData >> 16), (Base::_dynamicData & 0xFFFF));
break;
case kFillForeground:
drawTabAlg(x, y, w, h, r, (Base::_fillMode == kFillBackground) ? _bgColor : _fgColor, Base::_fillMode);
break;
}
}
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawTriangle(int x, int y, int w, int h, TriangleOrientation orient) {
if (x + w > Base::_activeSurface->w || y + h > Base::_activeSurface->h)
return;
PixelType color = 0;
if (Base::_strokeWidth <= 1) {
if (Base::_fillMode == kFillForeground)
color = _fgColor;
else if (Base::_fillMode == kFillBackground)
color = _bgColor;
} else {
if (Base::_fillMode == kFillDisabled)
return;
color = _fgColor;
}
if (Base::_dynamicData != 0)
orient = (TriangleOrientation)Base::_dynamicData;
if (w == h) {
int newW = w;
switch (orient) {
case kTriangleUp:
case kTriangleDown:
//drawTriangleFast(x, y, newW, (orient == kTriangleDown), color, Base::_fillMode);
drawTriangleVertAlg(x, y, newW, newW, (orient == kTriangleDown), color, Base::_fillMode);
break;
case kTriangleLeft:
case kTriangleRight:
case kTriangleAuto:
break;
}
if (Base::_strokeWidth > 0)
if (Base::_fillMode == kFillBackground || Base::_fillMode == kFillGradient) {
//drawTriangleFast(x, y, newW, (orient == kTriangleDown), _fgColor, kFillDisabled);
drawTriangleVertAlg(x, y, newW, newW, (orient == kTriangleDown), color, Base::_fillMode);
}
} else {
int newW = w;
int newH = h;
switch (orient) {
case kTriangleUp:
case kTriangleDown:
drawTriangleVertAlg(x, y, newW, newH, (orient == kTriangleDown), color, Base::_fillMode);
break;
case kTriangleLeft:
case kTriangleRight:
case kTriangleAuto:
break;
}
if (Base::_strokeWidth > 0) {
if (Base::_fillMode == kFillBackground || Base::_fillMode == kFillGradient) {
drawTriangleVertAlg(x, y, newW, newH, (orient == kTriangleDown), _fgColor, kFillDisabled);
}
}
}
}
/********************************************************************
********************************************************************
* Aliased Primitive drawing ALGORITHMS - VectorRendererSpec
********************************************************************
********************************************************************/
/** TAB ALGORITHM - NON AA */
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawTabAlg(int x1, int y1, int w, int h, int r, PixelType color, VectorRenderer::FillMode fill_m, int baseLeft, int baseRight) {
int f, ddF_x, ddF_y;
int x, y, px, py;
int pitch = _activeSurface->pitch / _activeSurface->format.bytesPerPixel;
int sw = 0, sp = 0, hp = 0;
PixelType *ptr_tl = (PixelType *)Base::_activeSurface->getBasePtr(x1 + r, y1 + r);
PixelType *ptr_tr = (PixelType *)Base::_activeSurface->getBasePtr(x1 + w - r, y1 + r);
PixelType *ptr_fill = (PixelType *)Base::_activeSurface->getBasePtr(x1, y1);
int real_radius = r;
int short_h = h - r + 2;
int long_h = h;
if (fill_m == kFillDisabled) {
while (sw++ < Base::_strokeWidth) {
colorFill<PixelType>(ptr_fill + sp + r, ptr_fill + w + 1 + sp - r, color);
colorFill<PixelType>(ptr_fill + hp - sp + r, ptr_fill + w + hp + 1 - sp - r, color);
sp += pitch;
BE_RESET();
r--;
while (x++ < y) {
BE_ALGORITHM();
*(ptr_tr + (y) - (px)) = color;
*(ptr_tr + (x) - (py)) = color;
*(ptr_tl - (x) - (py)) = color;
*(ptr_tl - (y) - (px)) = color;
if (Base::_strokeWidth > 1) {
*(ptr_tr + (y) - (px - pitch)) = color;
*(ptr_tr + (x) - (py)) = color;
*(ptr_tl - (x) - (py)) = color;
*(ptr_tl - (y) - (px - pitch)) = color;
}
}
}
ptr_fill += pitch * real_radius;
while (short_h--) {
colorFill<PixelType>(ptr_fill, ptr_fill + Base::_strokeWidth, color);
colorFill<PixelType>(ptr_fill + w - Base::_strokeWidth + 1, ptr_fill + w + 1, color);
ptr_fill += pitch;
}
if (baseLeft) {
sw = 0;
ptr_fill = (PixelType *)Base::_activeSurface->getBasePtr(x1, y1 + h + 1);
while (sw++ < Base::_strokeWidth) {
colorFill<PixelType>(ptr_fill - baseLeft, ptr_fill, color);
ptr_fill += pitch;
}
}
if (baseRight) {
sw = 0;
ptr_fill = (PixelType *)Base::_activeSurface->getBasePtr(x1 + w, y1 + h + 1);
while (sw++ < Base::_strokeWidth) {
colorFill<PixelType>(ptr_fill, ptr_fill + baseRight, color);
ptr_fill += pitch;
}
}
} else {
BE_RESET();
precalcGradient(long_h);
PixelType color1, color2;
color1 = color2 = color;
while (x++ < y) {
BE_ALGORITHM();
if (fill_m == kFillGradient) {
color1 = calcGradient(real_radius - x, long_h);
color2 = calcGradient(real_radius - y, long_h);
gradientFill(ptr_tl - x - py, w - 2 * r + 2 * x, x1 + r - x - y, real_radius - y);
gradientFill(ptr_tl - y - px, w - 2 * r + 2 * y, x1 + r - y - x, real_radius - x);
*(ptr_tr + (y) - (px)) = color1;
*(ptr_tr + (x) - (py)) = color2;
*(ptr_tl - (x) - (py)) = color2;
*(ptr_tl - (y) - (px)) = color1;
} else {
colorFill<PixelType>(ptr_tl - x - py, ptr_tr + x - py, color);
colorFill<PixelType>(ptr_tl - y - px, ptr_tr + y - px, color);
*(ptr_tr + (y) - (px)) = color;
*(ptr_tr + (x) - (py)) = color;
*(ptr_tl - (x) - (py)) = color;
*(ptr_tl - (y) - (px)) = color;
}
}
ptr_fill += pitch * r;
while (short_h--) {
if (fill_m == kFillGradient) {
gradientFill(ptr_fill, w + 1, x1, real_radius++);
} else {
colorFill<PixelType>(ptr_fill, ptr_fill + w + 1, color);
}
ptr_fill += pitch;
}
}
}
/** BEVELED TABS FOR CLASSIC THEME **/
template<typename PixelType>
void VectorRendererSpec<PixelType>::
drawBevelTabAlg(int x, int y, int w, int h, int bevel, PixelType top_color, PixelType bottom_color, int baseLeft, int baseRight) {
int pitch = _activeSurface->pitch / _activeSurface->format.bytesPerPixel;
int i, j;
PixelType *ptr_left = (PixelType *)_activeSurface->getBasePtr(x, y);
i = bevel;
while (i--) {
colorFill<PixelType>(ptr_left, ptr_left + w, top_color);
ptr_left += pitch;
}
if (baseLeft > 0) {
i = h - bevel;
ptr_left = (PixelType *)_activeSurface->getBasePtr(x, y);
while (i--) {
colorFill<PixelType>(ptr_left, ptr_left + bevel, top_color);
ptr_left += pitch;
}
}
i = h - bevel;
j = bevel - 1;
ptr_left = (PixelType *)_activeSurface->getBasePtr(x + w - bevel, y);