diff options
Diffstat (limited to 'mesalib/src/mesa/main/teximage.c')
-rw-r--r-- | mesalib/src/mesa/main/teximage.c | 23 |
1 files changed, 3 insertions, 20 deletions
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c index fa9783892..fcce7c5c8 100644 --- a/mesalib/src/mesa/main/teximage.c +++ b/mesalib/src/mesa/main/teximage.c @@ -80,23 +80,6 @@ _mesa_free_texmemory(void *m) }
-/*
- * Returns the floor form of binary logarithm for a 32-bit integer.
- */
-static GLuint
-logbase2(GLuint n)
-{
- GLuint pos = 0;
- if (n >= 1<<16) { n >>= 16; pos += 16; }
- if (n >= 1<< 8) { n >>= 8; pos += 8; }
- if (n >= 1<< 4) { n >>= 4; pos += 4; }
- if (n >= 1<< 2) { n >>= 2; pos += 2; }
- if (n >= 1<< 1) { pos += 1; }
- return pos;
-}
-
-
-
/**
* Return the simple base format for a given internal texture format.
* For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
@@ -1155,7 +1138,7 @@ _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target, img->Depth = depth;
img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
- img->WidthLog2 = logbase2(img->Width2);
+ img->WidthLog2 = _mesa_logbase2(img->Width2);
if (height == 1) { /* 1-D texture */
img->Height2 = 1;
@@ -1163,7 +1146,7 @@ _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target, }
else {
img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
- img->HeightLog2 = logbase2(img->Height2);
+ img->HeightLog2 = _mesa_logbase2(img->Height2);
}
if (depth == 1) { /* 2-D texture */
@@ -1172,7 +1155,7 @@ _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target, }
else {
img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
- img->DepthLog2 = logbase2(img->Depth2);
+ img->DepthLog2 = _mesa_logbase2(img->Depth2);
}
img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
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