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)
{
assert(IsDefined());
assert(src.IsDefined());
SDL_Surface *src_surface = src.GetNative();
assert(src_surface->format->palette != NULL &&
src_surface->format->palette->ncolors == 2);
SDL_Surface *zoomed =
::zoomSurface(src_surface, (double)dest_width / (double)src_width,
(double)dest_height / (double)src_height,
SMOOTHING_OFF);
if (zoomed == NULL)
return;
assert(zoomed->format->palette != NULL &&
zoomed->format->palette->ncolors == 2);
::SDL_SetColorKey(zoomed, 0, 0);
zoomed->format->palette->colors[0] = text_color;
zoomed->format->palette->colors[1] = bg_color;
copy(dest_x, dest_y, dest_width, dest_height,
zoomed, (src_x * dest_width) / src_width,
(src_y * dest_height) / src_height);
::SDL_FreeSurface(zoomed);
}
void
Canvas::StretchNot(const Bitmap &src)
{
assert(src.IsDefined());
#ifdef USE_GLSL
OpenGL::invert_shader->Use();
#else
const GLEnable scope(GL_TEXTURE_2D);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
/* invert the texture color */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_REPLACE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_RGB, GL_TEXTURE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_ONE_MINUS_SRC_COLOR);
/* copy the texture alpha */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_ALPHA, GL_TEXTURE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
#endif
GLTexture &texture = *src.GetNative();
texture.Draw(0, 0, GetWidth(), GetHeight(),
0, 0, src.GetWidth(), src.GetHeight());
}
void
Canvas::Copy(const Bitmap &_src)
{
ConstImageBuffer src = _src.GetNative();
Copy(0, 0, src.width, src.height, src, 0, 0);
}
void
Canvas::StretchMono(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
const Bitmap &src,
int src_x, int src_y,
unsigned src_width, unsigned 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 */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
/* replace the texture color with the selected text color */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_REPLACE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_RGB, GL_PREVIOUS);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_COLOR);
/* invert texture alpha (our bitmaps have black text on white
background) */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_ALPHA, GL_TEXTURE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
const GLEnable scope(GL_TEXTURE_2D);
const GLBlend blend(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GLTexture &texture = *src.GetNative();
texture.Bind();
texture.Draw(dest_x, dest_y, dest_width, dest_height,
src_x, src_y, src_width, src_height);
}
void
Canvas::invert_stretch_transparent(const Bitmap &src, Color key)
{
assert(src.IsDefined());
SDL_Surface *src_surface = src.GetNative();
const UPixelScalar src_x = 0, src_y = 0;
const UPixelScalar src_width = src_surface->w;
const UPixelScalar src_height = src_surface->h;
const UPixelScalar dest_x = 0, dest_y = 0;
const UPixelScalar dest_width = get_width();
const UPixelScalar dest_height = get_height();
SDL_Surface *zoomed =
::zoomSurface(src_surface, (double)dest_width / (double)src_width,
(double)dest_height / (double)src_height,
SMOOTHING_OFF);
if (zoomed == NULL)
return;
::SDL_SetColorKey(zoomed, SDL_SRCCOLORKEY,
::SDL_MapRGB(zoomed->format, key.value.r,
key.value.g, key.value.b));
copy_not(dest_x, dest_y, dest_width, dest_height,
zoomed, (src_x * dest_width) / src_width,
(src_y * dest_height) / src_height);
::SDL_FreeSurface(zoomed);
}
void
Canvas::invert_stretch_transparent(const Bitmap &src, Color key)
{
assert(IsDefined());
assert(src.IsDefined());
HDC virtual_dc = GetCompatibleDC();
HBITMAP old = (HBITMAP)::SelectObject(virtual_dc, src.GetNative());
const PixelSize size = src.GetSize();
BufferCanvas inverted(*this, size.cx, size.cy);
::BitBlt(inverted, 0, 0, size.cx, size.cy,
virtual_dc, 0, 0, NOTSRCCOPY);
::SelectObject(virtual_dc, old);
#ifdef _WIN32_WCE
::TransparentImage(dc, 0, 0, get_width(), get_height(),
inverted, 0, 0, size.cx, size.cy,
key);
#else
::TransparentBlt(dc, 0, 0, get_width(), get_height(),
inverted, 0, 0, size.cx, size.cy,
key);
#endif
}
void
Canvas::copy(PixelScalar dest_x, PixelScalar dest_y,
UPixelScalar dest_width, UPixelScalar dest_height,
const Bitmap &src, PixelScalar src_x, PixelScalar src_y)
{
copy(dest_x, dest_y, dest_width, dest_height,
src.GetNative(), src_x, src_y);
}
void
Canvas::Copy(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
const Bitmap &src, int src_x, int src_y)
{
Copy(dest_x, dest_y, dest_width, dest_height,
src.GetNative(), src_x, src_y);
}
void
Canvas::copy_and(PixelScalar dest_x, PixelScalar dest_y,
UPixelScalar dest_width, UPixelScalar dest_height,
const Bitmap &src, PixelScalar src_x, PixelScalar src_y)
{
assert(src.IsDefined());
copy_and(dest_x, dest_y, dest_width, dest_height,
src.GetNative(), src_x, src_y);
}
void
Canvas::CopyAnd(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
const Bitmap &src, int src_x, int src_y)
{
assert(src.IsDefined());
CopyAnd(dest_x, dest_y, dest_width, dest_height,
src.GetNative(), src_x, src_y);
}
void
Brush::Set(const Bitmap &bitmap)
{
/* GDI works best when the bitmap is 8x8 - to avoid bad performance,
disallow using any other bitmap size */
assert(bitmap.GetSize().cx == 8);
assert(bitmap.GetSize().cy == 8);
Reset();
brush = ::CreatePatternBrush(bitmap.GetNative());
}
void
Canvas::Stretch(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
const Bitmap &_src)
{
assert(IsDefined());
assert(_src.IsDefined());
ConstImageBuffer src = _src.GetNative();
Stretch(dest_x, dest_y, dest_width, dest_height,
src, 0, 0, src.width, src.height);
}
void
Canvas::stretch(PixelScalar dest_x, PixelScalar dest_y,
UPixelScalar dest_width, UPixelScalar dest_height,
const Bitmap &src)
{
assert(IsDefined());
assert(src.IsDefined());
SDL_Surface *surface = src.GetNative();
stretch(dest_x, dest_y, dest_width, dest_height,
surface, 0, 0, surface->w, surface->h);
}
void
Canvas::StretchNot(const Bitmap &src)
{
assert(IsDefined());
assert(src.IsDefined());
const PixelSize size = src.GetSize();
Stretch(0, 0, GetWidth(), GetHeight(),
src.GetNative(), 0, 0, size.cx, size.cy,
NOTSRCCOPY);
}
void
Canvas::stretch_transparent(const Bitmap &src, Color key)
{
assert(src.IsDefined());
SDL_Surface *surface = src.GetNative();
::SDL_SetColorKey(surface, SDL_SRCCOLORKEY,
::SDL_MapRGB(surface->format, key.value.r,
key.value.g, key.value.b));
stretch(surface);
::SDL_SetColorKey(surface, 0, 0);
}
void
Canvas::Stretch(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
const Bitmap &src,
int src_x, int src_y,
unsigned src_width, unsigned src_height)
{
assert(IsDefined());
assert(src.IsDefined());
Stretch(dest_x, dest_y, dest_width, dest_height,
src.GetNative(),
src_x, src_y, src_width, src_height);
}
void
Canvas::stretch(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)
{
assert(IsDefined());
assert(src.IsDefined());
stretch(dest_x, dest_y, dest_width, dest_height,
src.GetNative(),
src_x, src_y, src_width, src_height);
}
void
Canvas::Stretch(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
const Bitmap &src)
{
#ifdef HAVE_GLES
assert(offset == OpenGL::translate);
#endif
assert(src.IsDefined());
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
GLTexture &texture = *src.GetNative();
GLEnable scope(GL_TEXTURE_2D);
texture.Bind();
texture.Draw(dest_x, dest_y, dest_width, dest_height,
0, 0, src.GetWidth(), src.GetHeight());
}
void
Canvas::StretchNot(const Bitmap &_src)
{
assert(_src.IsDefined());
ConstImageBuffer src = _src.GetNative();
const unsigned src_x = 0, src_y = 0;
const unsigned dest_x = 0, dest_y = 0;
const unsigned dest_width = GetWidth();
const unsigned dest_height = GetHeight();
SDLRasterCanvas canvas(buffer);
BitNotPixelOperations<ActivePixelTraits> operations;
canvas.ScaleRectangle(dest_x, dest_y, dest_width, dest_height,
src.At(src_x, src_y), src.pitch, src.width, src.height,
operations);
}
void
Canvas::StretchAnd(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
const Bitmap &src,
int src_x, int src_y, unsigned src_width, unsigned src_height)
{
assert(IsDefined());
assert(src.IsDefined());
ConstImageBuffer srcImg = src.GetNative();
SDLRasterCanvas canvas(buffer);
BitAndPixelOperations<ActivePixelTraits> operations;
canvas.ScaleRectangle(dest_x, dest_y, dest_width, dest_height,
srcImg.At(src_x, src_y), srcImg.pitch, src_width, src_height,
operations);
}
void
Canvas::Stretch(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)
{
#ifdef HAVE_GLES
assert(x_offset == OpenGL::translate_x);
assert(y_offset == OpenGL::translate_y);
#endif
assert(src.IsDefined());
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
GLTexture &texture = *src.GetNative();
GLEnable scope(GL_TEXTURE_2D);
texture.Bind();
texture.Draw(dest_x, dest_y, dest_width, dest_height,
src_x, src_y, src_width, src_height);
}
void
Canvas::Stretch(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
const Bitmap &src, int src_x, int src_y,
unsigned src_width, unsigned src_height)
{
#ifdef HAVE_GLES
assert(offset == OpenGL::translate);
#endif
assert(src.IsDefined());
#ifdef USE_GLSL
OpenGL::texture_shader->Use();
#else
const GLEnable scope(GL_TEXTURE_2D);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
#endif
GLTexture &texture = *src.GetNative();
texture.Bind();
texture.Draw(dest_x, dest_y, dest_width, dest_height,
src_x, src_y, src_width, src_height);
}
void
Canvas::CopyAnd(const Bitmap &src)
{
CopyAnd(0, 0, GetWidth(), GetHeight(),
src.GetNative(), 0, 0);
}
void
Canvas::copy(const Bitmap &src)
{
SDL_Surface *surface = src.GetNative();
copy(0, 0, surface->w, surface->h, surface, 0, 0);
}
void
Brush::Set(const Bitmap &bitmap)
{
Reset();
brush = ::CreatePatternBrush(bitmap.GetNative());
}
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);
}
}
