CXTColorRef& CXTColorRef::blend(const CXTColorRef& clr, int opacity)
{
*this = RGB(BlendColor(clr.getRValue(), getRValue(), opacity),
BlendColor(clr.getGValue(), getGValue(), opacity),
BlendColor(clr.getBValue(), getBValue(), opacity));
return *this;
}
void BlendTev(u16 x, u16 y, u8 *color)
{
u32 dstClr;
u32 offset = GetColorOffset(x, y);
u8 *dstClrPtr = (u8*)&dstClr;
GetPixelColor(offset, dstClrPtr);
if (bpmem.blendmode.blendenable)
{
if (bpmem.blendmode.subtract)
SubtractBlend(color, dstClrPtr);
else
BlendColor(color, dstClrPtr);
}
else if (bpmem.blendmode.logicopenable)
{
LogicBlend(*((u32*)color), dstClr, bpmem.blendmode.logicmode);
}
else
{
dstClrPtr = color;
}
if (bpmem.dstalpha.enable)
dstClrPtr[ALP_C] = bpmem.dstalpha.alpha;
if (bpmem.blendmode.colorupdate)
{
if (bpmem.blendmode.alphaupdate)
SetPixelAlphaColor(offset, dstClrPtr);
else
SetPixelColorOnly(offset, dstClrPtr);
}
else if (bpmem.blendmode.alphaupdate)
{
SetPixelAlphaOnly(offset, dstClrPtr[ALP_C]);
}
// branchless bounding box update
PixelEngine::bbox[0] = std::min(x, PixelEngine::bbox[0]);
PixelEngine::bbox[1] = std::max(x, PixelEngine::bbox[1]);
PixelEngine::bbox[2] = std::min(y, PixelEngine::bbox[2]);
PixelEngine::bbox[3] = std::max(y, PixelEngine::bbox[3]);
}
void BlendTev(u16 x, u16 y, u8 *color)
{
u32 dstClr;
u32 offset = GetColorOffset(x, y);
u8 *dstClrPtr = (u8*)&dstClr;
GetPixelColor(offset, dstClrPtr);
if (bpmem.blendmode.blendenable)
{
if (bpmem.blendmode.subtract)
SubtractBlend(color, dstClrPtr);
else
BlendColor(color, dstClrPtr);
}
else if (bpmem.blendmode.logicopenable)
{
LogicBlend(*((u32*)color), dstClr, bpmem.blendmode.logicmode);
}
else
{
dstClrPtr = color;
}
if (bpmem.dstalpha.enable)
dstClrPtr[ALP_C] = bpmem.dstalpha.alpha;
if (bpmem.blendmode.colorupdate)
{
if (bpmem.blendmode.alphaupdate)
SetPixelAlphaColor(offset, dstClrPtr);
else
SetPixelColorOnly(offset, dstClrPtr);
}
else if (bpmem.blendmode.alphaupdate)
{
SetPixelAlphaOnly(offset, dstClrPtr[ALP_C]);
}
// branchless bounding box update
SWPixelEngine::pereg.boxLeft = SWPixelEngine::pereg.boxLeft>x?x:SWPixelEngine::pereg.boxLeft;
SWPixelEngine::pereg.boxRight = SWPixelEngine::pereg.boxRight<x?x:SWPixelEngine::pereg.boxRight;
SWPixelEngine::pereg.boxTop = SWPixelEngine::pereg.boxTop>y?y:SWPixelEngine::pereg.boxTop;
SWPixelEngine::pereg.boxBottom = SWPixelEngine::pereg.boxBottom<y?y:SWPixelEngine::pereg.boxBottom;
}
void TitleBar::DoPaint(CDC *dc, int cx, int cy)
{
int x,y;
BITMAP b;
GetObject(backbuffer, sizeof(b), &b);
cy -= 1;
// draw gradient
int stride = (b.bmWidthBytes / 4);
DWORD *pix = (DWORD*)(b.bmBits);
DWORD base_color;
DWORD color;
int y_mid = cy/2;
for (y=0; y<cy; y++) {
DWORD *line = pix + y*stride;
DWORD glow_color;
int glow_alpha;
// calculate glow parameters
if (y < y_mid) {
glow_color = col_glow_up;
glow_alpha = (topfade_up + (((topfade_bottom-topfade_up)*(y+1))/y_mid));
} else {
glow_color = col_glow_bottom;
glow_alpha = (bottomfade_up + (((bottomfade_bottom-bottomfade_up)*(y-y_mid+1))/y_mid));
float temp = glow_alpha / 256.0;
temp = pow((float)temp, (float)3.0);
glow_alpha = temp * 255.0;
}
for (x=0; x<cx; x++) {
// base gradient color
base_color = BlendColor(col_left, col_right, (x+1)*255/cx);
color = BlendColor(base_color, glow_color, glow_alpha);
line[x] = color;
}
}
// draw border lines
DWORD *line1 = pix + 0*stride;
DWORD *line2 = pix + (cy-1)*stride;
for (x=0; x<cx; x++) {
line1[x] = BlendColor(line1[x], MAKECOLOR(255,255,255), 100);
line2[x] = BlendColor(line2[x], MAKECOLOR(255,255,255), 100);
}
for (y=0; y<cy; y++) {
line1 = pix + y*stride;
line1[0] = BlendColor(line1[0], MAKECOLOR(255,255,255), 100);
line1[cx-1] = BlendColor(line1[cx-1], MAKECOLOR(255,255,255), 100);
}
cy += 1;
// black line at the bottom
line1 = pix + (cy-1)*stride;
for (x=0; x<cx; x++) {
line1[x] = 0;
}
}
