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input: Parse mappings.h in one go

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Despite the additional allocation, memset() and memcpy() calls, this
operation isn’t measurably slower than the previous way, possibly
because the parser only runs once on all of the input.
This commit is contained in:
Emmanuel Gil Peyrot 2021-03-21 13:44:17 +01:00
parent 33cd8b865d
commit acee7eadd7
1 changed files with 15 additions and 5 deletions
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20
src/init.c
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@ -260,15 +260,25 @@ GLFWAPI int glfwInit(void)
{
int i;
char *mappings;
// This is a hack because MSVC still doesn’t support literal strings
// longer than 65535 bytes.
// TODO: find the maximum length of an entry, currently I took the
// longest one instead of properly calculating it.
mappings = malloc(326 * sizeof(_glfwDefaultMappings) / sizeof(char *));
memset(mappings, '\n', 326 * sizeof(_glfwDefaultMappings) / sizeof(char *));
for (i = 0; _glfwDefaultMappings[i]; i++)
memcpy(&mappings[326 * i], _glfwDefaultMappings[i], strlen(_glfwDefaultMappings[i]));
if (!glfwUpdateGamepadMappings(mappings))
{
if (!glfwUpdateGamepadMappings(_glfwDefaultMappings[i]))
{
terminate();
return GLFW_FALSE;
}
free(mappings);
terminate();
return GLFW_FALSE;
}
free(mappings);
}
return GLFW_TRUE;