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vdr/osd.c
Klaus Schmidinger 09a17d56e2 Version 1.7.12 
- Changed the EVCONTENTMASK_* macros to enums and changed "mask" to "group".
- Updated the Estonian OSD texts (thanks to Arthur Konovalov).
- The "Edit timer" menu can now set the folder for the recording from a list of
  folders stored in "folders.conf".
- Updated the Italian OSD texts (thanks to Diego Pierotto).
- If svdrphosts.conf contains only the address of the local host, the SVDRP port
  is opened only for the local host (thanks to Manuel Reimer).
- Renamed 'runvdr' to 'runvdr.template' and no longer copying it to the BINDIR
  in 'make install' (thanks to Martin Dauskardt).
- Added plain text error messages to log entries from cOsd::SetAreas() (suggested
  by Rolf Ahrenberg).
- cPalette::ClosestColor() now treats fully transparent colors as "equal"; improved
  cDvbSpuBitmap::getMinBpp() (thanks to Matthieu Castet and Johann Friedrichs).
- The new setup option "Miscellaneous/Channels wrap" controls whether the current
  channel wraps around the beginning or end of the channel list when zapping (thanks
  to Matti Lehtimäki).
- Fixed determining the frame duration on channels where the PTS deltas jitter by
  +/-1 around 1800.
- The PCR pid in generated PMTs is now set to the channel's PCR pid again.
- Fixed determining the frame duration on channels where the PTS deltas jitter by
  +/-1 around 3600.
- The PCR pid is now recorded for channels where this is different from the video
  PID. To facilitate this, the interfaces of cTransfer, cTransferControl, cRecorder
  and cReceiver have been modified, so that the PIDs are no longer given in separate
  parameters, but rather the whole channel is handed down for processing. The old
  constructor of cReceiver is still available, but it is recommended to plugin authors
  that they switch to the new interface as soon as possible.
  When replaying such a recording, the PCR packets are sent to PlayTsVideo()
- The files "commands.conf" and "reccmd.conf" can now contain nested lists of
  commands. See vdr.5 for information about the new file format.
2010-01-31 15:42:00 +01:00

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/*
* osd.c: Abstract On Screen Display layer
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: osd.c 2.9 2010/01/22 15:58:39 kls Exp $
*/
#include "osd.h"
#include <math.h>
#include <stdarg.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/unistd.h>
#include "device.h"
#include "tools.h"
// --- cPalette --------------------------------------------------------------
cPalette::cPalette(int Bpp)
{
SetBpp(Bpp);
SetAntiAliasGranularity(10, 10);
}
cPalette::~cPalette()
{
}
void cPalette::SetAntiAliasGranularity(uint FixedColors, uint BlendColors)
{
if (FixedColors >= MAXNUMCOLORS || BlendColors == 0)
antiAliasGranularity = MAXNUMCOLORS - 1;
else {
int ColorsForBlending = MAXNUMCOLORS - FixedColors;
int ColorsPerBlend = ColorsForBlending / BlendColors + 2; // +2 = the full foreground and background colors, which are amoung the fixed colors
antiAliasGranularity = double(MAXNUMCOLORS - 1) / (ColorsPerBlend - 1);
}
}
void cPalette::Reset(void)
{
numColors = 0;
modified = false;
}
int cPalette::Index(tColor Color)
{
// Check if color is already defined:
for (int i = 0; i < numColors; i++) {
if (color[i] == Color)
return i;
}
// No exact color, try a close one:
int i = ClosestColor(Color, 4);
if (i >= 0)
return i;
// No close one, try to define a new one:
if (numColors < maxColors) {
color[numColors++] = Color;
modified = true;
return numColors - 1;
}
// Out of colors, so any close color must do:
return ClosestColor(Color);
}
void cPalette::SetBpp(int Bpp)
{
bpp = Bpp;
maxColors = 1 << bpp;
Reset();
}
void cPalette::SetColor(int Index, tColor Color)
{
if (Index < maxColors) {
if (numColors <= Index) {
numColors = Index + 1;
modified = true;
}
else
modified |= color[Index] != Color;
color[Index] = Color;
}
}
const tColor *cPalette::Colors(int &NumColors) const
{
NumColors = numColors;
return numColors ? color : NULL;
}
void cPalette::Take(const cPalette &Palette, tIndexes *Indexes, tColor ColorFg, tColor ColorBg)
{
for (int i = 0; i < Palette.numColors; i++) {
tColor Color = Palette.color[i];
if (ColorFg || ColorBg) {
switch (i) {
case 0: Color = ColorBg; break;
case 1: Color = ColorFg; break;
default: ;
}
}
int n = Index(Color);
if (Indexes)
(*Indexes)[i] = n;
}
}
void cPalette::Replace(const cPalette &Palette)
{
for (int i = 0; i < Palette.numColors; i++)
SetColor(i, Palette.color[i]);
numColors = Palette.numColors;
antiAliasGranularity = Palette.antiAliasGranularity;
}
tColor cPalette::Blend(tColor ColorFg, tColor ColorBg, uint8_t Level) const
{
if (antiAliasGranularity > 0)
Level = uint8_t(int(Level / antiAliasGranularity + 0.5) * antiAliasGranularity);
int Af = (ColorFg & 0xFF000000) >> 24;
int Rf = (ColorFg & 0x00FF0000) >> 16;
int Gf = (ColorFg & 0x0000FF00) >> 8;
int Bf = (ColorFg & 0x000000FF);
int Ab = (ColorBg & 0xFF000000) >> 24;
int Rb = (ColorBg & 0x00FF0000) >> 16;
int Gb = (ColorBg & 0x0000FF00) >> 8;
int Bb = (ColorBg & 0x000000FF);
int A = (Ab + (Af - Ab) * Level / 0xFF) & 0xFF;
int R = (Rb + (Rf - Rb) * Level / 0xFF) & 0xFF;
int G = (Gb + (Gf - Gb) * Level / 0xFF) & 0xFF;
int B = (Bb + (Bf - Bb) * Level / 0xFF) & 0xFF;
return (A << 24) | (R << 16) | (G << 8) | B;
}
int cPalette::ClosestColor(tColor Color, int MaxDiff) const
{
int n = 0;
int d = INT_MAX;
int A1 = (Color & 0xFF000000) >> 24;
int R1 = (Color & 0x00FF0000) >> 16;
int G1 = (Color & 0x0000FF00) >> 8;
int B1 = (Color & 0x000000FF);
for (int i = 0; i < numColors && d > 0; i++) {
int A2 = (color[i] & 0xFF000000) >> 24;
int R2 = (color[i] & 0x00FF0000) >> 16;
int G2 = (color[i] & 0x0000FF00) >> 8;
int B2 = (color[i] & 0x000000FF);
int diff = 0;
if (A1 || A2) // fully transparent colors are considered equal
diff = (abs(A1 - A2) << 1) + (abs(R1 - R2) << 1) + (abs(G1 - G2) << 1) + (abs(B1 - B2) << 1);
if (diff < d) {
d = diff;
n = i;
}
}
return d <= MaxDiff ? n : -1;
}
// --- cBitmap ---------------------------------------------------------------
cBitmap::cBitmap(int Width, int Height, int Bpp, int X0, int Y0)
:cPalette(Bpp)
{
bitmap = NULL;
x0 = X0;
y0 = Y0;
SetSize(Width, Height);
}
cBitmap::cBitmap(const char *FileName)
{
bitmap = NULL;
x0 = 0;
y0 = 0;
LoadXpm(FileName);
}
cBitmap::cBitmap(const char *const Xpm[])
{
bitmap = NULL;
x0 = 0;
y0 = 0;
SetXpm(Xpm);
}
cBitmap::~cBitmap()
{
free(bitmap);
}
void cBitmap::SetSize(int Width, int Height)
{
if (bitmap && Width == width && Height == height)
return;
width = Width;
height = Height;
free(bitmap);
bitmap = NULL;
dirtyX1 = 0;
dirtyY1 = 0;
dirtyX2 = width - 1;
dirtyY2 = height - 1;
if (width > 0 && height > 0) {
bitmap = MALLOC(tIndex, width * height);
if (bitmap)
memset(bitmap, 0x00, width * height);
else
esyslog("ERROR: can't allocate bitmap!");
}
else
esyslog("ERROR: invalid bitmap parameters (%d, %d)!", width, height);
}
bool cBitmap::Contains(int x, int y) const
{
x -= x0;
y -= y0;
return 0 <= x && x < width && 0 <= y && y < height;
}
bool cBitmap::Covers(int x1, int y1, int x2, int y2) const
{
x1 -= x0;
y1 -= y0;
x2 -= x0;
y2 -= y0;
return x1 <= 0 && y1 <= 0 && x2 >= width - 1 && y2 >= height - 1;
}
bool cBitmap::Intersects(int x1, int y1, int x2, int y2) const
{
x1 -= x0;
y1 -= y0;
x2 -= x0;
y2 -= y0;
return !(x2 < 0 || x1 >= width || y2 < 0 || y1 >= height);
}
bool cBitmap::Dirty(int &x1, int &y1, int &x2, int &y2)
{
if (dirtyX2 >= 0) {
x1 = dirtyX1;
y1 = dirtyY1;
x2 = dirtyX2;
y2 = dirtyY2;
return true;
}
return false;
}
void cBitmap::Clean(void)
{
dirtyX1 = width;
dirtyY1 = height;
dirtyX2 = -1;
dirtyY2 = -1;
}
bool cBitmap::LoadXpm(const char *FileName)
{
bool Result = false;
FILE *f = fopen(FileName, "r");
if (f) {
char **Xpm = NULL;
bool isXpm = false;
int lines = 0;
int index = 0;
char *s;
cReadLine ReadLine;
while ((s = ReadLine.Read(f)) != NULL) {
s = skipspace(s);
if (!isXpm) {
if (strcmp(s, "/* XPM */") != 0) {
esyslog("ERROR: invalid header in XPM file '%s'", FileName);
break;
}
isXpm = true;
}
else if (*s++ == '"') {
if (!lines) {
int w, h, n, c;
if (4 != sscanf(s, "%d %d %d %d", &w, &h, &n, &c)) {
esyslog("ERROR: faulty 'values' line in XPM file '%s'", FileName);
isXpm = false;
break;
}
lines = h + n + 1;
Xpm = MALLOC(char *, lines);
memset(Xpm, 0, lines * sizeof(char*));
}
char *q = strchr(s, '"');
if (!q) {
esyslog("ERROR: missing quotes in XPM file '%s'", FileName);
isXpm = false;
break;
}
*q = 0;
if (index < lines)
Xpm[index++] = strdup(s);
else {
esyslog("ERROR: too many lines in XPM file '%s'", FileName);
isXpm = false;
break;
}
}
}
if (isXpm) {
if (index == lines)
Result = SetXpm(Xpm);
else
esyslog("ERROR: too few lines in XPM file '%s'", FileName);
}
if (Xpm) {
for (int i = 0; i < index; i++)
free(Xpm[i]);
}
free(Xpm);
fclose(f);
}
else
esyslog("ERROR: can't open XPM file '%s'", FileName);
return Result;
}
bool cBitmap::SetXpm(const char *const Xpm[], bool IgnoreNone)
{
if (!Xpm)
return false;
const char *const *p = Xpm;
int w, h, n, c;
if (4 != sscanf(*p, "%d %d %d %d", &w, &h, &n, &c)) {
esyslog("ERROR: faulty 'values' line in XPM: '%s'", *p);
return false;
}
if (n > MAXNUMCOLORS) {
esyslog("ERROR: too many colors in XPM: %d", n);
return false;
}
int b = 0;
while (1 << (1 << b) < (IgnoreNone ? n - 1 : n))
b++;
SetBpp(1 << b);
SetSize(w, h);
int NoneColorIndex = MAXNUMCOLORS;
for (int i = 0; i < n; i++) {
const char *s = *++p;
if (int(strlen(s)) < c) {
esyslog("ERROR: faulty 'colors' line in XPM: '%s'", s);
return false;
}
s = skipspace(s + c);
if (*s != 'c') {
esyslog("ERROR: unknown color key in XPM: '%c'", *s);
return false;
}
s = skipspace(s + 1);
if (strcasecmp(s, "none") == 0) {
s = "#00000000";
NoneColorIndex = i;
if (IgnoreNone)
continue;
}
if (*s != '#') {
esyslog("ERROR: unknown color code in XPM: '%c'", *s);
return false;
}
tColor color = strtoul(++s, NULL, 16) | 0xFF000000;
SetColor((IgnoreNone && i > NoneColorIndex) ? i - 1 : i, color);
}
for (int y = 0; y < h; y++) {
const char *s = *++p;
if (int(strlen(s)) != w * c) {
esyslog("ERROR: faulty pixel line in XPM: %d '%s'", y, s);
return false;
}
for (int x = 0; x < w; x++) {
for (int i = 0; i <= n; i++) {
if (i == n) {
esyslog("ERROR: undefined pixel color in XPM: %d %d '%s'", x, y, s);
return false;
}
if (strncmp(Xpm[i + 1], s, c) == 0) {
if (i == NoneColorIndex)
NoneColorIndex = MAXNUMCOLORS;
SetIndex(x, y, (IgnoreNone && i > NoneColorIndex) ? i - 1 : i);
break;
}
}
s += c;
}
}
if (NoneColorIndex < MAXNUMCOLORS && !IgnoreNone)
return SetXpm(Xpm, true);
return true;
}
void cBitmap::SetIndex(int x, int y, tIndex Index)
{
if (bitmap) {
if (0 <= x && x < width && 0 <= y && y < height) {
if (bitmap[width * y + x] != Index) {
bitmap[width * y + x] = Index;
if (dirtyX1 > x) dirtyX1 = x;
if (dirtyY1 > y) dirtyY1 = y;
if (dirtyX2 < x) dirtyX2 = x;
if (dirtyY2 < y) dirtyY2 = y;
}
}
}
}
void cBitmap::DrawPixel(int x, int y, tColor Color)
{
x -= x0;
y -= y0;
if (0 <= x && x < width && 0 <= y && y < height)
SetIndex(x, y, Index(Color));
}
void cBitmap::DrawBitmap(int x, int y, const cBitmap &Bitmap, tColor ColorFg, tColor ColorBg, bool ReplacePalette, bool Overlay)
{
if (bitmap && Bitmap.bitmap && Intersects(x, y, x + Bitmap.Width() - 1, y + Bitmap.Height() - 1)) {
if (Covers(x, y, x + Bitmap.Width() - 1, y + Bitmap.Height() - 1))
Reset();
x -= x0;
y -= y0;
if (ReplacePalette && Covers(x + x0, y + y0, x + x0 + Bitmap.Width() - 1, y + y0 + Bitmap.Height() - 1)) {
Replace(Bitmap);
for (int ix = 0; ix < Bitmap.width; ix++) {
for (int iy = 0; iy < Bitmap.height; iy++) {
if (!Overlay || Bitmap.bitmap[Bitmap.width * iy + ix] != 0)
SetIndex(x + ix, y + iy, Bitmap.bitmap[Bitmap.width * iy + ix]);
}
}
}
else {
tIndexes Indexes;
Take(Bitmap, &Indexes, ColorFg, ColorBg);
for (int ix = 0; ix < Bitmap.width; ix++) {
for (int iy = 0; iy < Bitmap.height; iy++) {
if (!Overlay || Bitmap.bitmap[Bitmap.width * iy + ix] != 0)
SetIndex(x + ix, y + iy, Indexes[int(Bitmap.bitmap[Bitmap.width * iy + ix])]);
}
}
}
}
}
void cBitmap::DrawText(int x, int y, const char *s, tColor ColorFg, tColor ColorBg, const cFont *Font, int Width, int Height, int Alignment)
{
if (bitmap) {
int w = Font->Width(s);
int h = Font->Height();
int limit = 0;
int cw = Width ? Width : w;
int ch = Height ? Height : h;
if (!Intersects(x, y, x + cw - 1, y + ch - 1))
return;
if (ColorBg != clrTransparent)
DrawRectangle(x, y, x + cw - 1, y + ch - 1, ColorBg);
if (Width || Height) {
limit = x + cw - x0;
if (Width) {
if ((Alignment & taLeft) != 0)
;
else if ((Alignment & taRight) != 0) {
if (w < Width)
x += Width - w;
}
else { // taCentered
if (w < Width)
x += (Width - w) / 2;
}
}
if (Height) {
if ((Alignment & taTop) != 0)
;
else if ((Alignment & taBottom) != 0) {
if (h < Height)
y += Height - h;
}
else { // taCentered
if (h < Height)
y += (Height - h) / 2;
}
}
}
x -= x0;
y -= y0;
Font->DrawText(this, x, y, s, ColorFg, ColorBg, limit);
}
}
void cBitmap::DrawRectangle(int x1, int y1, int x2, int y2, tColor Color)
{
if (bitmap && Intersects(x1, y1, x2, y2)) {
if (Covers(x1, y1, x2, y2))
Reset();
x1 -= x0;
y1 -= y0;
x2 -= x0;
y2 -= y0;
x1 = max(x1, 0);
y1 = max(y1, 0);
x2 = min(x2, width - 1);
y2 = min(y2, height - 1);
tIndex c = Index(Color);
for (int y = y1; y <= y2; y++)
for (int x = x1; x <= x2; x++)
SetIndex(x, y, c);
}
}
void cBitmap::DrawEllipse(int x1, int y1, int x2, int y2, tColor Color, int Quadrants)
{
if (!Intersects(x1, y1, x2, y2))
return;
// Algorithm based on http://homepage.smc.edu/kennedy_john/BELIPSE.PDF
int rx = x2 - x1;
int ry = y2 - y1;
int cx = (x1 + x2) / 2;
int cy = (y1 + y2) / 2;
switch (abs(Quadrants)) {
case 0: rx /= 2; ry /= 2; break;
case 1: cx = x1; cy = y2; break;
case 2: cx = x2; cy = y2; break;
case 3: cx = x2; cy = y1; break;
case 4: cx = x1; cy = y1; break;
case 5: cx = x1; ry /= 2; break;
case 6: cy = y2; rx /= 2; break;
case 7: cx = x2; ry /= 2; break;
case 8: cy = y1; rx /= 2; break;
default: ;
}
int TwoASquare = 2 * rx * rx;
int TwoBSquare = 2 * ry * ry;
int x = rx;
int y = 0;
int XChange = ry * ry * (1 - 2 * rx);
int YChange = rx * rx;
int EllipseError = 0;
int StoppingX = TwoBSquare * rx;
int StoppingY = 0;
while (StoppingX >= StoppingY) {
switch (Quadrants) {
case 5: DrawRectangle(cx, cy + y, cx + x, cy + y, Color); // no break
case 1: DrawRectangle(cx, cy - y, cx + x, cy - y, Color); break;
case 7: DrawRectangle(cx - x, cy + y, cx, cy + y, Color); // no break
case 2: DrawRectangle(cx - x, cy - y, cx, cy - y, Color); break;
case 3: DrawRectangle(cx - x, cy + y, cx, cy + y, Color); break;
case 4: DrawRectangle(cx, cy + y, cx + x, cy + y, Color); break;
case 0:
case 6: DrawRectangle(cx - x, cy - y, cx + x, cy - y, Color); if (Quadrants == 6) break;
case 8: DrawRectangle(cx - x, cy + y, cx + x, cy + y, Color); break;
case -1: DrawRectangle(cx + x, cy - y, x2, cy - y, Color); break;
case -2: DrawRectangle(x1, cy - y, cx - x, cy - y, Color); break;
case -3: DrawRectangle(x1, cy + y, cx - x, cy + y, Color); break;
case -4: DrawRectangle(cx + x, cy + y, x2, cy + y, Color); break;
default: ;
}
y++;
StoppingY += TwoASquare;
EllipseError += YChange;
YChange += TwoASquare;
if (2 * EllipseError + XChange > 0) {
x--;
StoppingX -= TwoBSquare;
EllipseError += XChange;
XChange += TwoBSquare;
}
}
x = 0;
y = ry;
XChange = ry * ry;
YChange = rx * rx * (1 - 2 * ry);
EllipseError = 0;
StoppingX = 0;
StoppingY = TwoASquare * ry;
while (StoppingX <= StoppingY) {
switch (Quadrants) {
case 5: DrawRectangle(cx, cy + y, cx + x, cy + y, Color); // no break
case 1: DrawRectangle(cx, cy - y, cx + x, cy - y, Color); break;
case 7: DrawRectangle(cx - x, cy + y, cx, cy + y, Color); // no break
case 2: DrawRectangle(cx - x, cy - y, cx, cy - y, Color); break;
case 3: DrawRectangle(cx - x, cy + y, cx, cy + y, Color); break;
case 4: DrawRectangle(cx, cy + y, cx + x, cy + y, Color); break;
case 0:
case 6: DrawRectangle(cx - x, cy - y, cx + x, cy - y, Color); if (Quadrants == 6) break;
case 8: DrawRectangle(cx - x, cy + y, cx + x, cy + y, Color); break;
case -1: DrawRectangle(cx + x, cy - y, x2, cy - y, Color); break;
case -2: DrawRectangle(x1, cy - y, cx - x, cy - y, Color); break;
case -3: DrawRectangle(x1, cy + y, cx - x, cy + y, Color); break;
case -4: DrawRectangle(cx + x, cy + y, x2, cy + y, Color); break;
default: ;
}
x++;
StoppingX += TwoBSquare;
EllipseError += XChange;
XChange += TwoBSquare;
if (2 * EllipseError + YChange > 0) {
y--;
StoppingY -= TwoASquare;
EllipseError += YChange;
YChange += TwoASquare;
}
}
}
void cBitmap::DrawSlope(int x1, int y1, int x2, int y2, tColor Color, int Type)
{
// TODO This is just a quick and dirty implementation of a slope drawing
// machanism. If somebody can come up with a better solution, let's have it!
if (!Intersects(x1, y1, x2, y2))
return;
bool upper = Type & 0x01;
bool falling = Type & 0x02;
bool vertical = Type & 0x04;
if (vertical) {
for (int y = y1; y <= y2; y++) {
double c = cos((y - y1) * M_PI / (y2 - y1 + 1));
if (falling)
c = -c;
int x = int((x2 - x1 + 1) * c / 2);
if (upper && !falling || !upper && falling)
DrawRectangle(x1, y, (x1 + x2) / 2 + x, y, Color);
else
DrawRectangle((x1 + x2) / 2 + x, y, x2, y, Color);
}
}
else {
for (int x = x1; x <= x2; x++) {
double c = cos((x - x1) * M_PI / (x2 - x1 + 1));
if (falling)
c = -c;
int y = int((y2 - y1 + 1) * c / 2);
if (upper)
DrawRectangle(x, y1, x, (y1 + y2) / 2 + y, Color);
else
DrawRectangle(x, (y1 + y2) / 2 + y, x, y2, Color);
}
}
}
const tIndex *cBitmap::Data(int x, int y) const
{
return &bitmap[y * width + x];
}
void cBitmap::ReduceBpp(const cPalette &Palette)
{
int NewBpp = Palette.Bpp();
if (Bpp() == 4 && NewBpp == 2) {
for (int i = width * height; i--; ) {
tIndex p = bitmap[i];
bitmap[i] = (p >> 2) | ((p & 0x03) != 0);
}
}
else if (Bpp() == 8) {
if (NewBpp == 2) {
for (int i = width * height; i--; ) {
tIndex p = bitmap[i];
bitmap[i] = (p >> 6) | ((p & 0x30) != 0);
}
}
else if (NewBpp == 4) {
for (int i = width * height; i--; ) {
tIndex p = bitmap[i];
bitmap[i] = p >> 4;
}
}
else
return;
}
else
return;
SetBpp(NewBpp);
Replace(Palette);
}
void cBitmap::ShrinkBpp(int NewBpp)
{
int NumOldColors;
const tColor *Colors = this->Colors(NumOldColors);
if (Colors) {
// Find the most frequently used colors and create a map table:
int Used[MAXNUMCOLORS] = { 0 };
int Map[MAXNUMCOLORS] = { 0 };
for (int i = width * height; i--; )
Used[bitmap[i]]++;
int MaxNewColors = (NewBpp == 4) ? 16 : 4;
cPalette NewPalette(NewBpp);
for (int i = 0; i < MaxNewColors; i++) {
int Max = 0;
int Index = -1;
for (int n = 0; n < NumOldColors; n++) {
if (Used[n] > Max) {
Max = Used[n];
Index = n;
}
}
if (Index >= 0) {
Used[Index] = 0;
Map[Index] = i;
NewPalette.SetColor(i, Colors[Index]);
}
else
break;
}
// Complete the map table for all other colors (will be set to closest match):
for (int n = 0; n < NumOldColors; n++) {
if (Used[n])
Map[n] = NewPalette.Index(Colors[n]);
}
// Do the actual index mapping:
for (int i = width * height; i--; )
bitmap[i] = Map[bitmap[i]];
SetBpp(NewBpp);
Replace(NewPalette);
}
}
// --- cOsd ------------------------------------------------------------------
static const char *OsdErrorTexts[] = {
"ok",
"too many areas",
"too many colors",
"bpp not supported",
"areas overlap",
"wrong alignment",
"out of memory",
"wrong area size",
"unknown",
};
int cOsd::osdLeft = 0;
int cOsd::osdTop = 0;
int cOsd::osdWidth = 0;
int cOsd::osdHeight = 0;
cVector<cOsd *> cOsd::Osds;
cOsd::cOsd(int Left, int Top, uint Level)
{
savedRegion = NULL;
numBitmaps = 0;
left = Left;
top = Top;
width = height = 0;
level = Level;
active = false;
for (int i = 0; i < Osds.Size(); i++) {
if (Osds[i]->level > level) {
Osds.Insert(this, i);
return;
}
}
Osds.Append(this);
}
cOsd::~cOsd()
{
for (int i = 0; i < numBitmaps; i++)
delete bitmaps[i];
delete savedRegion;
for (int i = 0; i < Osds.Size(); i++) {
if (Osds[i] == this) {
Osds.Remove(i);
if (Osds.Size())
Osds[0]->SetActive(true);
break;
}
}
}
void cOsd::SetOsdPosition(int Left, int Top, int Width, int Height)
{
osdLeft = Left;
osdTop = Top;
osdWidth = min(max(Width, MINOSDWIDTH), MAXOSDWIDTH);
osdHeight = min(max(Height, MINOSDHEIGHT), MAXOSDHEIGHT);
}
void cOsd::SetAntiAliasGranularity(uint FixedColors, uint BlendColors)
{
for (int i = 0; i < numBitmaps; i++)
bitmaps[i]->SetAntiAliasGranularity(FixedColors, BlendColors);
}
cBitmap *cOsd::GetBitmap(int Area)
{
return Area < numBitmaps ? bitmaps[Area] : NULL;
}
eOsdError cOsd::CanHandleAreas(const tArea *Areas, int NumAreas)
{
if (NumAreas > MAXOSDAREAS)
return oeTooManyAreas;
eOsdError Result = oeOk;
for (int i = 0; i < NumAreas; i++) {
if (Areas[i].x1 > Areas[i].x2 || Areas[i].y1 > Areas[i].y2 || Areas[i].x1 < 0 || Areas[i].y1 < 0)
return oeWrongAlignment;
for (int j = i + 1; j < NumAreas; j++) {
if (Areas[i].Intersects(Areas[j])) {
Result = oeAreasOverlap;
break;
}
}
}
return Result;
}
eOsdError cOsd::SetAreas(const tArea *Areas, int NumAreas)
{
eOsdError Result = CanHandleAreas(Areas, NumAreas);
if (Result == oeOk) {
while (numBitmaps)
delete bitmaps[--numBitmaps];
width = height = 0;
for (int i = 0; i < NumAreas; i++) {
bitmaps[numBitmaps++] = new cBitmap(Areas[i].Width(), Areas[i].Height(), Areas[i].bpp, Areas[i].x1, Areas[i].y1);
width = max(width, Areas[i].x2 + 1);
height = max(height, Areas[i].y2 + 1);
}
}
else
esyslog("ERROR: cOsd::SetAreas returned %d (%s)", Result, Result < oeUnknown ? OsdErrorTexts[Result] : OsdErrorTexts[oeUnknown]);
return Result;
}
void cOsd::SaveRegion(int x1, int y1, int x2, int y2)
{
delete savedRegion;
savedRegion = new cBitmap(x2 - x1 + 1, y2 - y1 + 1, 8, x1, y1);
for (int i = 0; i < numBitmaps; i++)
savedRegion->DrawBitmap(bitmaps[i]->X0(), bitmaps[i]->Y0(), *bitmaps[i]);
}
void cOsd::RestoreRegion(void)
{
if (savedRegion) {
DrawBitmap(savedRegion->X0(), savedRegion->Y0(), *savedRegion);
delete savedRegion;
savedRegion = NULL;
}
}
eOsdError cOsd::SetPalette(const cPalette &Palette, int Area)
{
if (Area < numBitmaps)
bitmaps[Area]->Take(Palette);
return oeUnknown;
}
void cOsd::DrawPixel(int x, int y, tColor Color)
{
for (int i = 0; i < numBitmaps; i++)
bitmaps[i]->DrawPixel(x, y, Color);
}
void cOsd::DrawBitmap(int x, int y, const cBitmap &Bitmap, tColor ColorFg, tColor ColorBg, bool ReplacePalette, bool Overlay)
{
for (int i = 0; i < numBitmaps; i++)
bitmaps[i]->DrawBitmap(x, y, Bitmap, ColorFg, ColorBg, ReplacePalette, Overlay);
}
void cOsd::DrawText(int x, int y, const char *s, tColor ColorFg, tColor ColorBg, const cFont *Font, int Width, int Height, int Alignment)
{
for (int i = 0; i < numBitmaps; i++)
bitmaps[i]->DrawText(x, y, s, ColorFg, ColorBg, Font, Width, Height, Alignment);
}
void cOsd::DrawRectangle(int x1, int y1, int x2, int y2, tColor Color)
{
for (int i = 0; i < numBitmaps; i++)
bitmaps[i]->DrawRectangle(x1, y1, x2, y2, Color);
}
void cOsd::DrawEllipse(int x1, int y1, int x2, int y2, tColor Color, int Quadrants)
{
for (int i = 0; i < numBitmaps; i++)
bitmaps[i]->DrawEllipse(x1, y1, x2, y2, Color, Quadrants);
}
void cOsd::DrawSlope(int x1, int y1, int x2, int y2, tColor Color, int Type)
{
for (int i = 0; i < numBitmaps; i++)
bitmaps[i]->DrawSlope(x1, y1, x2, y2, Color, Type);
}
void cOsd::Flush(void)
{
}
// --- cOsdProvider ----------------------------------------------------------
cOsdProvider *cOsdProvider::osdProvider = NULL;
int cOsdProvider::oldWidth = 0;
int cOsdProvider::oldHeight = 0;
double cOsdProvider::oldAspect = 1.0;
cOsdProvider::cOsdProvider(void)
{
delete osdProvider;
osdProvider = this;
}
cOsdProvider::~cOsdProvider()
{
osdProvider = NULL;
}
cOsd *cOsdProvider::NewOsd(int Left, int Top, uint Level)
{
if (Level == OSD_LEVEL_DEFAULT && cOsd::IsOpen())
esyslog("ERROR: attempt to open OSD while it is already open - using dummy OSD!");
else if (osdProvider) {
cOsd *ActiveOsd = cOsd::Osds.Size() ? cOsd::Osds[0] : NULL;
cOsd *Osd = osdProvider->CreateOsd(Left, Top, Level);
if (Osd == cOsd::Osds[0]) {
if (ActiveOsd)
ActiveOsd->SetActive(false);
Osd->SetActive(true);
}
return Osd;
}
else
esyslog("ERROR: no OSD provider available - using dummy OSD!");
return new cOsd(Left, Top, 999); // create a dummy cOsd, so that access won't result in a segfault
}
void cOsdProvider::UpdateOsdSize(bool Force)
{
int Width;
int Height;
double Aspect;
cDevice::PrimaryDevice()->GetOsdSize(Width, Height, Aspect);
if (Width != oldWidth || Height != oldHeight || !DoubleEqual(Aspect, oldAspect) || Force) {
Setup.OSDLeft = int(round(Width * Setup.OSDLeftP));
Setup.OSDTop = int(round(Height * Setup.OSDTopP));
Setup.OSDWidth = int(round(Width * Setup.OSDWidthP)) & ~0x07; // OSD width must be a multiple of 8
Setup.OSDHeight = int(round(Height * Setup.OSDHeightP));
Setup.OSDAspect = Aspect;
Setup.FontOsdSize = int(round(Height * Setup.FontOsdSizeP));
Setup.FontFixSize = int(round(Height * Setup.FontFixSizeP));
Setup.FontSmlSize = int(round(Height * Setup.FontSmlSizeP));
cFont::SetFont(fontOsd, Setup.FontOsd, Setup.FontOsdSize);
cFont::SetFont(fontFix, Setup.FontFix, Setup.FontFixSize);
cFont::SetFont(fontSml, Setup.FontSml, Setup.FontSmlSize);
oldWidth = Width;
oldHeight = Height;
oldAspect = Aspect;
dsyslog("OSD size changed to %dx%d @ %g", Width, Height, Aspect);
}
}
void cOsdProvider::Shutdown(void)
{
delete osdProvider;
osdProvider = NULL;
}
// --- cTextScroller ---------------------------------------------------------
cTextScroller::cTextScroller(void)
{
osd = NULL;
left = top = width = height = 0;
font = NULL;
colorFg = 0;
colorBg = 0;
offset = 0;
shown = 0;
}
cTextScroller::cTextScroller(cOsd *Osd, int Left, int Top, int Width, int Height, const char *Text, const cFont *Font, tColor ColorFg, tColor ColorBg)
{
Set(Osd, Left, Top, Width, Height, Text, Font, ColorFg, ColorBg);
}
void cTextScroller::Set(cOsd *Osd, int Left, int Top, int Width, int Height, const char *Text, const cFont *Font, tColor ColorFg, tColor ColorBg)
{
osd = Osd;
left = Left;
top = Top;
width = Width;
height = Height;
font = Font;
colorFg = ColorFg;
colorBg = ColorBg;
offset = 0;
textWrapper.Set(Text, Font, Width);
shown = min(Total(), height / font->Height());
height = shown * font->Height(); // sets height to the actually used height, which may be less than Height
DrawText();
}
void cTextScroller::Reset(void)
{
osd = NULL; // just makes sure it won't draw anything
}
void cTextScroller::DrawText(void)
{
if (osd) {
for (int i = 0; i < shown; i++)
osd->DrawText(left, top + i * font->Height(), textWrapper.GetLine(offset + i), colorFg, colorBg, font, width);
}
}
void cTextScroller::Scroll(bool Up, bool Page)
{
if (Up) {
if (CanScrollUp()) {
offset -= Page ? shown : 1;
if (offset < 0)
offset = 0;
DrawText();
}
}
else {
if (CanScrollDown()) {
offset += Page ? shown : 1;
if (offset + shown > Total())
offset = Total() - shown;
DrawText();
}
}
}
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