// draws the oscilloscope
void
Oscilloscope (DWORD grab_data)
{
STAMP s;
if (oscillDisabled)
return;
if (!grab_data)
return;
TFB_DrawImage_Image (scope_bg, 0, 0, 0, NULL, scope_surf);
if (GetSoundData (scope_data))
{
int i, r, g, b;
TFB_DrawCanvas_GetPixel (scope_bg->NormalImg,
scope_bg->extent.width / 2, scope_bg->extent.height / 2,
&r, &g, &b);
for (i = 0; i < RADAR_WIDTH - 3; ++i)
TFB_DrawImage_Line (i + 1, scope_data[i], i + 2,
scope_data[i + 1], r, g, b, scope_surf);
}
TFB_DrawImage_Image (scope_surf, 0, 0, 0, NULL, scope_frame->image);
s.frame = scope_frame;
s.origin.x = s.origin.y = 0;
DrawStamp (&s);
}
void
InitOscilloscope (DWORD x, DWORD y, DWORD width, DWORD height, FRAME f)
{
scope_frame = f;
if (!scope_init)
{
TFB_Canvas scope_bg_canvas, scope_surf_canvas;
if (TFB_DrawCanvas_IsPaletted (scope_frame->image->NormalImg))
{
scope_bg_canvas = TFB_DrawCanvas_New_Paletted (width, height,
scope_frame->image->Palette, -1);
scope_surf_canvas = TFB_DrawCanvas_New_Paletted (width, height,
scope_frame->image->Palette, -1);
}
else
{
scope_bg_canvas = TFB_DrawCanvas_New_ForScreen (width, height,
FALSE);
scope_surf_canvas = TFB_DrawCanvas_New_ForScreen (width, height,
FALSE);
}
scope_bg = TFB_DrawImage_New (scope_bg_canvas);
scope_surf = TFB_DrawImage_New (scope_surf_canvas);
TFB_DrawImage_Image (scope_frame->image, 0, 0, 0, NULL, scope_bg);
scope_init = 1;
}
/* remove compiler warnings */
(void) x;
(void) y;
}
void
FixContextFontEffect (void)
{
SIZE w, h;
TFB_Image* img;
if (!ContextActive () || (_get_context_font_backing () != 0
&& !(_get_context_fbk_flags () & FBK_DIRTY)))
return;
if (!GetContextFontLeading (&h) || !GetContextFontLeadingWidth (&w))
return;
img = _pCurContext->FontBacking;
if (img)
TFB_DrawScreen_DeleteImage (img);
img = TFB_DrawImage_CreateForScreen (w, h, TRUE);
if (_get_context_fbk_flags () & FBK_IMAGE)
{ // image pattern backing
FRAME EffectFrame = _get_context_fonteff ();
TFB_DrawImage_Image (EffectFrame->image,
-EffectFrame->HotSpot.x, -EffectFrame->HotSpot.y,
0, 0, NULL, DRAW_REPLACE_MODE, img);
}
else
{ // solid color backing
RECT r = { {0, 0}, {w, h} };
Color color = _get_context_fg_color ();
TFB_DrawImage_Rect (&r, color, DRAW_REPLACE_MODE, img);
}
_pCurContext->FontBacking = img;
UnsetContextFBkFlags (FBK_DIRTY);
}
