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Added image/bmp and text/html support to X11.

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This commit is contained in:
crs
2004-05-02 21:31:19 +00:00
parent 500362d5c0
commit 4b212ad704
10 changed files with 657 additions and 13 deletions
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120
lib/base/CUnicode.cpp
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@@ -23,30 +23,44 @@
inline
static
UInt16
decode16(const UInt8* n)
decode16(const UInt8* n, bool byteSwapped)
{
union x16 {
UInt8 n8[2];
UInt16 n16;
} c;
c.n8[0] = n[0];
c.n8[1] = n[1];
if (byteSwapped) {
c.n8[0] = n[1];
c.n8[1] = n[0];
}
else {
c.n8[0] = n[0];
c.n8[1] = n[1];
}
return c.n16;
}
inline
static
UInt32
decode32(const UInt8* n)
decode32(const UInt8* n, bool byteSwapped)
{
union x32 {
UInt8 n8[4];
UInt32 n32;
} c;
c.n8[0] = n[0];
c.n8[1] = n[1];
c.n8[2] = n[2];
c.n8[3] = n[3];
if (byteSwapped) {
c.n8[0] = n[3];
c.n8[1] = n[2];
c.n8[2] = n[1];
c.n8[3] = n[0];
}
else {
c.n8[0] = n[0];
c.n8[1] = n[1];
c.n8[2] = n[2];
c.n8[3] = n[3];
}
return c.n32;
}
@@ -366,9 +380,29 @@ CUnicode::doUCS2ToUTF8(const UInt8* data, UInt32 n, bool* errors)
CString dst;
dst.reserve(n);
// check if first character is 0xfffe or 0xfeff
bool byteSwapped = false;
if (n >= 1) {
switch (decode16(data, false)) {
case 0x0000feff:
data += 2;
--n;
break;
case 0x0000fffe:
byteSwapped = true;
data += 2;
--n;
break;
default:
break;
}
}
// convert each character
for (; n > 0; data += 2, --n) {
UInt32 c = decode16(data);
UInt32 c = decode16(data, byteSwapped);
toUTF8(dst, c, errors);
}
@@ -382,9 +416,29 @@ CUnicode::doUCS4ToUTF8(const UInt8* data, UInt32 n, bool* errors)
CString dst;
dst.reserve(n);
// check if first character is 0xfffe or 0xfeff
bool byteSwapped = false;
if (n >= 1) {
switch (decode32(data, false)) {
case 0x0000feff:
data += 4;
--n;
break;
case 0x0000fffe:
byteSwapped = true;
data += 4;
--n;
break;
default:
break;
}
}
// convert each character
for (; n > 0; data += 4, --n) {
UInt32 c = decode32(data);
UInt32 c = decode32(data, byteSwapped);
toUTF8(dst, c, errors);
}
@@ -398,9 +452,29 @@ CUnicode::doUTF16ToUTF8(const UInt8* data, UInt32 n, bool* errors)
CString dst;
dst.reserve(n);
// check if first character is 0xfffe or 0xfeff
bool byteSwapped = false;
if (n >= 1) {
switch (decode16(data, false)) {
case 0x0000feff:
data += 2;
--n;
break;
case 0x0000fffe:
byteSwapped = true;
data += 2;
--n;
break;
default:
break;
}
}
// convert each character
for (; n > 0; data += 2, --n) {
UInt32 c = decode16(data);
UInt32 c = decode16(data, byteSwapped);
if (c < 0x0000d800 || c > 0x0000dfff) {
toUTF8(dst, c, errors);
}
@@ -410,7 +484,7 @@ CUnicode::doUTF16ToUTF8(const UInt8* data, UInt32 n, bool* errors)
toUTF8(dst, s_replacement, NULL);
}
else if (c >= 0x0000d800 && c <= 0x0000dbff) {
UInt32 c2 = decode16(data);
UInt32 c2 = decode16(data, byteSwapped);
data += 2;
--n;
if (c2 < 0x0000dc00 || c2 > 0x0000dfff) {
@@ -440,9 +514,29 @@ CUnicode::doUTF32ToUTF8(const UInt8* data, UInt32 n, bool* errors)
CString dst;
dst.reserve(n);
// check if first character is 0xfffe or 0xfeff
bool byteSwapped = false;
if (n >= 1) {
switch (decode32(data, false)) {
case 0x0000feff:
data += 4;
--n;
break;
case 0x0000fffe:
byteSwapped = true;
data += 4;
--n;
break;
default:
break;
}
}
// convert each character
for (; n > 0; data += 4, --n) {
UInt32 c = decode32(data);
UInt32 c = decode32(data, byteSwapped);
if (c >= 0x00110000) {
setError(errors);
c = s_replacement;