Color Desaturate(Color c) {
#ifdef GREYSCALE
return c;
#else
int a = (c.Red() + c.Green() + c.Blue()) / 3;
return Color((c.Red() + a) / 2, (c.Green() + a) / 2, (c.Blue() + a) / 2);
#endif
}
void
FormatHexColor(TCHAR *buffer, size_t size, const Color _color)
{
assert(size >= 7);
#if defined(__ARM_ARCH_7A__) && GCC_VERSION < 40500
// NOTE: The local "c" copy of "color" works around an android compiler
// bug (observed with gcc version 4.4.3)
const Color color(_color.Red(), _color.Green(), _color.Blue());
#else
const Color color(_color);
#endif
_sntprintf(buffer, size, _T("#%02X%02X%02X"),
color.Red(), color.Green(), color.Blue());
}
// returns the addition of this color with another color
Color Color::operator+ (const Color& vRhs) const
{
double trans=Transparent() > vRhs.Transparent() ? Transparent() :
vRhs.Transparent();
return Color(Red()+vRhs.Red(),Green()+vRhs.Green(),Blue()+vRhs.Blue(),
trans);
}
static constexpr ActivePixelTraits::color_type Import(Color color) {
#ifdef GREYSCALE
return Luminosity8(color.GetLuminosity());
#else
return BGRA8Color(color.Red(), color.Green(), color.Blue(), color.Alpha());
#endif
}
/**
* Returns a darker version of the specified color.
*/
static inline constexpr Color
DarkColor(Color c)
{
#ifdef GREYSCALE
return Color(DarkColor(c.GetLuminosity()));
#else
return Color(DarkColor(c.Red()), DarkColor(c.Green()),
DarkColor(c.Blue()));
#endif
}
//------------------------------------------------------------------------------
void
Canvas::DrawHLine(int x1, int x2, int y, Color color)
{
QPainterPath p;
p.moveTo(x1, y);
p.lineTo(x2, y);
QPen a_pen = this->pen();
a_pen.setColor(QColor(color.Red(), color.Green(), color.Blue()));
this->pushObject(p, a_pen, this->brush());
}
void MagicView::OnViewBackColor()
{
ModelView* view = GetModelViewByIndex(view_focus);
if (view) {
ActiveWindow* win = (ActiveWindow*) view->GetWindow();
Color c = win->GetBackColor();
COLORREF crgb = RGB(c.Red(), c.Green(), c.Blue());
CColorDialog chooser(crgb);
if (chooser.DoModal() == IDOK) {
crgb = chooser.GetColor();
win->SetBackColor( Color(GetRValue(crgb), GetGValue(crgb), GetBValue(crgb)) );
}
}
}
//------------------------------------------------------------------------------
void
Canvas::DrawOutlineRectangle(int left, int top,
int right, int bottom,
Color color)
{
QPainterPath p;
p.addRect(left, top, right - left, bottom - top);
QPen a_pen = this->pen();
QBrush a_brush; // Qt::NoBrush.
#ifndef NDEBUG
std::cerr << __FILE__ << ", " << __LINE__ << ": "
<< a_brush.color().red() << ", "
<< a_brush.color().green() << ", "
<< a_brush.color().blue() << std::endl;
#endif
a_pen.setColor(QColor(color.Red(), color.Green(), color.Blue()));
this->pushObject(p, a_pen, a_brush);
}
void GraphicsManager::RenderText (int x, int y, const std::string& text, const Color& color, TTF_Font* font)
{
SDL_Color sdlColor = { color.Red(), color.Green(), color.Blue(), color.Alpha() };
SDL_Surface* surface = nullptr;
SDL_Texture* texture = nullptr;
ScopeGuard guard([&surface, &texture] () {
if (texture != nullptr) { SDL_DestroyTexture(texture); texture = nullptr; }
if (surface != nullptr) { SDL_FreeSurface(surface); surface = nullptr; }
});
surface = TTF_RenderText_Blended(font, text.c_str(), sdlColor);
if (surface == nullptr) throw error::Create("Failed to create surface!", ERROR_LOCATION);
texture = SDL_CreateTextureFromSurface(device, surface);
if (texture == nullptr) throw error::Create("Failed to create texture from surface!", ERROR_LOCATION);
SDL_Rect destRect = { x, y, 0, 0 };
SDL_QueryTexture(texture, nullptr, nullptr, &destRect.w, &destRect.h);
SDL_RenderCopy(device, texture, nullptr, &destRect);
}
HRESULT
AviFile::AddFrame(const Bitmap& bmp)
{
HRESULT hr = E_FAIL;
if (!iserr && !play && bmp.IsHighColor() && bmp.Width() == rect.w && bmp.Height() == rect.h) {
int w = bmp.Width();
int h = bmp.Height();
BYTE* buffer = new(__FILE__,__LINE__) BYTE[frame_size];
BYTE* dst = buffer;
for (int y = 0; y < bmp.Height(); y++) {
Color* src = bmp.HiPixels() + (h - 1 - y) * w;
for (int x = 0; x < bmp.Width(); x++) {
*dst++ = (BYTE) src->Blue();
*dst++ = (BYTE) src->Green();
*dst++ = (BYTE) src->Red();
src++;
}
}
#pragma warning(suppress: 6001)
hr = AVIStreamWrite(ps_comp, nframe, 1, buffer, frame_size, AVIIF_KEYFRAME, 0, 0);
if (SUCCEEDED(hr)) {
nframe++;
}
else {
Print("AVIStreamWriteFile failed. %08x\n", hr);
iserr = true;
}
delete [] buffer;
}
return hr;
}
/**
* Basic set / get.
*/
void testBasicSetGet()
{
TS_TRACE("Pen basic set get");
Pen p;
for (int i = 0; i < 10000; i++)
{
Pen::Style penmap[3] = {Pen::SOLID, Pen::DASH, Pen::BLANK};
uint8_t refr, refg, refb;
refr = rand();
refg = rand();
refb = rand();
Color refc(refr, refg, refb);
unsigned refw = lrand48();
Pen::Style refs = penmap[rand() % sizeof(penmap)];
Pen p(refs, refw, refc);
TS_ASSERT_EQUALS(p.GetWidth(), refw);
Color rc = p.GetColor();
TS_ASSERT_EQUALS(rc.Red(), refr);
TS_ASSERT_EQUALS(rc.Green(), refg);
TS_ASSERT_EQUALS(rc.Blue(), refb);
TS_ASSERT_EQUALS(p.GetStyle(), refs);
}
}
Color operator-(const Color& lhs, const Color& rhs)
{
Color result(lhs.Red() - rhs.Red(), lhs.Green() - rhs.Green(),
lhs.Blue() - rhs.Blue(), lhs.Alpha() - rhs.Alpha());
return result;
}
Color Desaturate(Color c) {
int a = (c.Red() + c.Green() + c.Blue()) / 3;
return Color((c.Red() + a) / 2, (c.Green() + a) / 2, (c.Blue() + a) / 2);
}
///////////////////////////////////////////////////////////////////////////////
// RGB --> HSB
///////////////////////////////////////////////////////////////////////////////
unsigned long RGBtoHSB (Color C)
{
return RGBtoHSB (C.Red(), C.Green(), C.Blue());
}
void
Canvas::StretchMono(PixelScalar dest_x, PixelScalar dest_y,
UPixelScalar dest_width, UPixelScalar dest_height,
const Bitmap &src,
PixelScalar src_x, PixelScalar src_y,
UPixelScalar src_width, UPixelScalar src_height,
Color fg_color, Color bg_color)
{
/* note that this implementation ignores the background color; it is
not mandatory, and we can assume that the background is already
set; it is only being passed to this function because the GDI
implementation will be faster when erasing the background
again */
GLTexture &texture = *src.GetNative();
GLEnable scope(GL_TEXTURE_2D);
texture.Bind();
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
if (fg_color == COLOR_WHITE) {
/* white text requested: use this trivial implementation */
GLLogicOp logic_op(GL_OR_INVERTED);
texture.Draw(dest_x, dest_y, dest_width, dest_height,
src_x, src_y, src_width, src_height);
return;
}
/* apply the mask, pixels will be black then */
GLLogicOp logic_op(GL_AND);
if (bg_color != COLOR_BLACK)
texture.Draw(dest_x, dest_y, dest_width, dest_height,
src_x, src_y, src_width, src_height);
if (fg_color != COLOR_BLACK) {
/* draw */
#ifndef HAVE_GLES
if (fg_color != COLOR_WHITE) {
/* XXX OpenGL/ES doesn't support GL_OPERAND0_RGB; we can't print
colored mono images currently */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, GL_TEXTURE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB,
GL_ONE_MINUS_SRC_COLOR);
const GLfloat color[] = {
GLfloat(fg_color.Red() / 256.),
GLfloat(fg_color.Green() / 256.),
GLfloat(fg_color.Blue() / 256.),
GLfloat(1.0),
};
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, GL_CONSTANT);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_MODULATE);
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, color);
logic_op.set(GL_OR);
} else
#endif
logic_op.set(GL_OR_INVERTED);
texture.Draw(dest_x, dest_y, dest_width, dest_height,
src_x, src_y, src_width, src_height);
}
}
bool operator==(const Color& lhs, const Color& rhs)
{
return lhs.Red() == rhs.Red() && lhs.Green() == rhs.Green() &&
lhs.Blue() == rhs.Blue() && lhs.Alpha() == rhs.Alpha();
}
Color operator*(const Color& lhs, const ElVisFloat& s)
{
Color result(
lhs.Red() * s, lhs.Green() * s, lhs.Blue() * s, lhs.Alpha() * s);
return result;
}