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ddraw: Use wined3d_log2i() to calculate the level count in ddraw_surface_create().

This commit is contained in:
Henri Verbeet 2014-12-10 13:26:35 +01:00 committed by Alexandre Julliard
parent f5939399f0
commit af9ccb490a
4 changed files with 36 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
dlls/ddraw/surface.c
View File

@ -5817,14 +5817,7 @@ HRESULT ddraw_surface_create(struct ddraw *ddraw, const DDSURFACEDESC2 *surface_
{
/* Undocumented feature: Create sublevels until either the
* width or the height is 1. */
DWORD min = desc->dwWidth < desc->dwHeight ? desc->dwWidth : desc->dwHeight;
desc->u2.dwMipMapCount = 0;
while (min)
{
++desc->u2.dwMipMapCount;
min >>= 1;
}
desc->u2.dwMipMapCount = wined3d_log2i(min(desc->dwWidth, desc->dwHeight)) + 1;
}
}
else

31
dlls/wined3d/utils.c
View File

@ -3929,37 +3929,6 @@ const struct wine_rb_functions wined3d_ffp_vertex_program_rb_functions =
wined3d_ffp_vertex_program_key_compare,
};
/* Return the integer base-2 logarithm of x. Undefined for x == 0. */
UINT wined3d_log2i(UINT32 x)
{
#ifdef HAVE___BUILTIN_CLZ
return __builtin_clz(x) ^ 0x1f;
#else
static const UINT l[] =
{
~0U, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
};
UINT32 i;
return (i = x >> 16) ? (x = i >> 8) ? l[x] + 24 : l[i] + 16 : (i = x >> 8) ? l[i] + 8 : l[x];
#endif
}
const struct blit_shader *wined3d_select_blitter(const struct wined3d_gl_info *gl_info, enum wined3d_blit_op blit_op,
const RECT *src_rect, DWORD src_usage, enum wined3d_pool src_pool, const struct wined3d_format *src_format,
const RECT *dst_rect, DWORD dst_usage, enum wined3d_pool dst_pool, const struct wined3d_format *dst_format)

1
dlls/wined3d/wined3d_private.h
View File

@ -2824,7 +2824,6 @@ GLenum gl_primitive_type_from_d3d(enum wined3d_primitive_type primitive_type) DE
/* Math utils */
void multiply_matrix(struct wined3d_matrix *dest, const struct wined3d_matrix *src1,
const struct wined3d_matrix *src2) DECLSPEC_HIDDEN;
UINT wined3d_log2i(UINT32 x) DECLSPEC_HIDDEN;
unsigned int count_bits(unsigned int mask) DECLSPEC_HIDDEN;
void wined3d_release_dc(HWND window, HDC dc) DECLSPEC_HIDDEN;

35
include/wine/wined3d.h
View File

@ -26,6 +26,10 @@
#ifndef __WINE_WINED3D_H
#define __WINE_WINED3D_H
#ifndef __WINE_CONFIG_H
# error You must include config.h to use this header
#endif
#include "wine/list.h"
#define WINED3D_OK S_OK
@ -2555,4 +2559,35 @@ HRESULT __cdecl wined3d_volume_map(struct wined3d_volume *volume,
void __cdecl wined3d_volume_preload(struct wined3d_volume *volume);
HRESULT __cdecl wined3d_volume_unmap(struct wined3d_volume *volume);
/* Return the integer base-2 logarithm of x. Undefined for x == 0. */
static inline unsigned int wined3d_log2i(unsigned int x)
{
#ifdef HAVE___BUILTIN_CLZ
return __builtin_clz(x) ^ 0x1f;
#else
static const unsigned int l[] =
{
~0u, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
};
unsigned int i;
return (i = x >> 16) ? (x = i >> 8) ? l[x] + 24 : l[i] + 16 : (i = x >> 8) ? l[i] + 8 : l[x];
#endif
}
#endif /* __WINE_WINED3D_H */