forked from mirrors/0ad
janwas
c0ed950657
this snowballed into a massive search+destroy of the hodgepodge of mostly equivalent types we had in use (int, uint, unsigned, unsigned int, i32, u32, ulong, uintN). it is more efficient to use 64-bit types in 64-bit mode, so the preferred default is size_t (for anything remotely resembling a size or index). tile coordinates are ssize_t to allow more efficient conversion to/from floating point. flags are int because we almost never need more than 15 distinct bits, bit test/set is not slower and int is fastest to type. finally, some data that is pretty much directly passed to OpenGL is now typed accordingly. after several hours, the code now requires fewer casts and less guesswork. other changes: - unit and player IDs now have an "invalid id" constant in the respective class to avoid casting and -1 - fix some endian/64-bit bugs in the map (un)packing. added a convenience function to write/read a size_t. - ia32: change CPUID interface to allow passing in ecx (required for cache topology detection, which I need at work). remove some unneeded functions from asm, replace with intrinsics where possible. This was SVN commit r5942.
108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
#include "precompiled.h"
|
|
#include "../cursor.h"
|
|
|
|
#include "win.h"
|
|
#include "wutil.h"
|
|
|
|
|
|
static void* ptr_from_HICON(HICON hIcon)
|
|
{
|
|
return (void*)(uintptr_t)hIcon;
|
|
}
|
|
|
|
static void* ptr_from_HCURSOR(HCURSOR hCursor)
|
|
{
|
|
return (void*)(uintptr_t)hCursor;
|
|
}
|
|
|
|
static HICON HICON_from_ptr(void* p)
|
|
{
|
|
return (HICON)(uintptr_t)p;
|
|
}
|
|
|
|
static HCURSOR HCURSOR_from_ptr(void* p)
|
|
{
|
|
return (HCURSOR)(uintptr_t)p;
|
|
}
|
|
|
|
|
|
// creates a cursor from the given image.
|
|
// w, h specify image dimensions [pixels]. limit is implementation-
|
|
// dependent; 32x32 is typical and safe.
|
|
// bgra_img is the cursor image (BGRA format, bottom-up).
|
|
// it is no longer needed and can be freed after this call returns.
|
|
// hotspot (hx,hy) is the offset from its upper-left corner to the
|
|
// position where mouse clicks are registered.
|
|
// cursor is only valid when INFO::OK is returned; in that case, it must be
|
|
// sys_cursor_free-ed when no longer needed.
|
|
LibError sys_cursor_create(int w, int h, void* bgra_img, int hx, int hy, void** cursor)
|
|
{
|
|
// MSDN says selecting this HBITMAP into a DC is slower since we use
|
|
// CreateBitmap; bpp/format must be checked against those of the DC.
|
|
// this is the simplest way and we don't care about slight performance
|
|
// differences because this is typically only called once.
|
|
HBITMAP hbmColour = CreateBitmap(w, h, 1, 32, bgra_img);
|
|
|
|
// CreateIconIndirect doesn't access this; we just need to pass
|
|
// an empty bitmap.
|
|
HBITMAP hbmMask = CreateBitmap(w, h, 1, 1, 0);
|
|
|
|
// create the cursor (really an icon; they differ only in
|
|
// fIcon and the hotspot definitions).
|
|
ICONINFO ii;
|
|
ii.fIcon = FALSE; // cursor
|
|
ii.xHotspot = (DWORD)hx;
|
|
ii.yHotspot = (DWORD)hy;
|
|
ii.hbmMask = hbmMask;
|
|
ii.hbmColor = hbmColour;
|
|
HICON hIcon = CreateIconIndirect(&ii);
|
|
|
|
// CreateIconIndirect makes copies, so we no longer need these.
|
|
DeleteObject(hbmMask);
|
|
DeleteObject(hbmColour);
|
|
|
|
if(!hIcon) // not INVALID_HANDLE_VALUE
|
|
WARN_RETURN(ERR::FAIL);
|
|
|
|
*cursor = ptr_from_HICON(hIcon);
|
|
return INFO::OK;
|
|
}
|
|
|
|
LibError sys_cursor_create_empty(void **cursor)
|
|
{
|
|
u8 bgra_img[] = {0, 0, 0, 0};
|
|
return sys_cursor_create(1, 1, bgra_img, 0, 0, cursor);
|
|
}
|
|
|
|
// replaces the current system cursor with the one indicated. need only be
|
|
// called once per cursor; pass 0 to restore the default.
|
|
LibError sys_cursor_set(void* cursor)
|
|
{
|
|
// restore default cursor.
|
|
if(!cursor)
|
|
cursor = ptr_from_HCURSOR(LoadCursor(0, MAKEINTRESOURCE(IDC_ARROW)));
|
|
|
|
(void)SetCursor(HCURSOR_from_ptr(cursor));
|
|
// return value (previous cursor) is useless.
|
|
|
|
return INFO::OK;
|
|
}
|
|
|
|
|
|
// destroys the indicated cursor and frees its resources. if it is
|
|
// currently the system cursor, the default cursor is restored first.
|
|
LibError sys_cursor_free(void* cursor)
|
|
{
|
|
// bail now to prevent potential confusion below; there's nothing to do.
|
|
if(!cursor)
|
|
return INFO::OK;
|
|
|
|
// if the cursor being freed is active, restore the default arrow
|
|
// (just for safety).
|
|
if(ptr_from_HCURSOR(GetCursor()) == cursor)
|
|
WARN_ERR(sys_cursor_set(0));
|
|
|
|
BOOL ok = DestroyIcon(HICON_from_ptr(cursor));
|
|
return LibError_from_win32(ok);
|
|
}
|