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Move UTF-8 encoding to shared code

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This will be used by the Wayland code too.

(cherry picked from commit cb22c54119)
This commit is contained in:
Camilla Löwy 2021-12-30 18:22:16 +01:00
parent 61497796e6
commit 0eaf9d557f
3 changed files with 35 additions and 33 deletions
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31
src/init.c
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@ -111,6 +111,37 @@ static void terminate(void)
////// GLFW internal API ////// ////// GLFW internal API //////
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
// Encode a Unicode code point to a UTF-8 stream
// Based on cutef8 by Jeff Bezanson (Public Domain)
//
size_t _glfwEncodeUTF8(char* s, unsigned int ch)
{
size_t count = 0;
if (ch < 0x80)
s[count++] = (char) ch;
else if (ch < 0x800)
{
s[count++] = (ch >> 6) | 0xc0;
s[count++] = (ch & 0x3f) | 0x80;
}
else if (ch < 0x10000)
{
s[count++] = (ch >> 12) | 0xe0;
s[count++] = ((ch >> 6) & 0x3f) | 0x80;
s[count++] = (ch & 0x3f) | 0x80;
}
else if (ch < 0x110000)
{
s[count++] = (ch >> 18) | 0xf0;
s[count++] = ((ch >> 12) & 0x3f) | 0x80;
s[count++] = ((ch >> 6) & 0x3f) | 0x80;
s[count++] = (ch & 0x3f) | 0x80;
}
return count;
}
char* _glfw_strdup(const char* source) char* _glfw_strdup(const char* source)
{ {
const size_t length = strlen(source); const size_t length = strlen(source);

2
src/internal.h
View File

@ -774,6 +774,8 @@ GLFWbool _glfwInitVulkan(int mode);
void _glfwTerminateVulkan(void); void _glfwTerminateVulkan(void);
const char* _glfwGetVulkanResultString(VkResult result); const char* _glfwGetVulkanResultString(VkResult result);
size_t _glfwEncodeUTF8(char* s, unsigned int ch);
char* _glfw_strdup(const char* source); char* _glfw_strdup(const char* source);
float _glfw_fminf(float a, float b); float _glfw_fminf(float a, float b);
float _glfw_fmaxf(float a, float b); float _glfw_fmaxf(float a, float b);

35
src/x11_window.c
View File

@ -429,37 +429,6 @@ static char** parseUriList(char* text, int* count)
return paths; return paths;
} }
// Encode a Unicode code point to a UTF-8 stream
// Based on cutef8 by Jeff Bezanson (Public Domain)
//
static size_t encodeUTF8(char* s, unsigned int ch)
{
size_t count = 0;
if (ch < 0x80)
s[count++] = (char) ch;
else if (ch < 0x800)
{
s[count++] = (ch >> 6) | 0xc0;
s[count++] = (ch & 0x3f) | 0x80;
}
else if (ch < 0x10000)
{
s[count++] = (ch >> 12) | 0xe0;
s[count++] = ((ch >> 6) & 0x3f) | 0x80;
s[count++] = (ch & 0x3f) | 0x80;
}
else if (ch < 0x110000)
{
s[count++] = (ch >> 18) | 0xf0;
s[count++] = ((ch >> 12) & 0x3f) | 0x80;
s[count++] = ((ch >> 6) & 0x3f) | 0x80;
s[count++] = (ch & 0x3f) | 0x80;
}
return count;
}
// Decode a Unicode code point from a UTF-8 stream // Decode a Unicode code point from a UTF-8 stream
// Based on cutef8 by Jeff Bezanson (Public Domain) // Based on cutef8 by Jeff Bezanson (Public Domain)
// //
@ -499,7 +468,7 @@ static char* convertLatin1toUTF8(const char* source)
char* tp = target; char* tp = target;
for (sp = source; *sp; sp++) for (sp = source; *sp; sp++)
tp += encodeUTF8(tp, *sp); tp += _glfwEncodeUTF8(tp, *sp);
return target; return target;
} }
@ -2906,7 +2875,7 @@ const char* _glfwPlatformGetScancodeName(int scancode)
if (ch == -1) if (ch == -1)
return NULL; return NULL;
const size_t count = encodeUTF8(_glfw.x11.keynames[key], (unsigned int) ch); const size_t count = _glfwEncodeUTF8(_glfw.x11.keynames[key], (unsigned int) ch);
if (count == 0) if (count == 0)
return NULL; return NULL;