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STBIR_EDGE_ZERO

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This commit is contained in:
Sean Barrett 2014-08-31 09:10:49 -07:00
parent 732fec68ee
commit 9a1d34843e
1 changed files with 7 additions and 2 deletions
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9
stb_image_resize.h
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@ -94,6 +94,7 @@ typedef enum
STBIR_EDGE_CLAMP = 1, STBIR_EDGE_CLAMP = 1,
STBIR_EDGE_REFLECT = 2, STBIR_EDGE_REFLECT = 2,
STBIR_EDGE_WRAP = 3, STBIR_EDGE_WRAP = 3,
STBIR_EDGE_ZERO = 4,
} stbir_edge; } stbir_edge;
// This function adds the ability to specify how requests to sample off the edge of the image are handled. // This function adds the ability to specify how requests to sample off the edge of the image are handled.
@ -593,6 +594,9 @@ static int stbir__edge_wrap_slow(stbir_edge edge, int n, int max)
{ {
switch (edge) switch (edge)
{ {
case STBIR_EDGE_ZERO:
return 0;
case STBIR_EDGE_CLAMP: case STBIR_EDGE_CLAMP:
if (n < 0) if (n < 0)
return 0; return 0;
@ -600,7 +604,7 @@ static int stbir__edge_wrap_slow(stbir_edge edge, int n, int max)
if (n >= max) if (n >= max)
return max - 1; return max - 1;
return n; return n; // NOTREACHED
case STBIR_EDGE_REFLECT: case STBIR_EDGE_REFLECT:
{ {
@ -621,7 +625,7 @@ static int stbir__edge_wrap_slow(stbir_edge edge, int n, int max)
return max2 - n - 1; return max2 - n - 1;
} }
return n; return n; // NOTREACHED
} }
case STBIR_EDGE_WRAP: case STBIR_EDGE_WRAP:
@ -636,6 +640,7 @@ static int stbir__edge_wrap_slow(stbir_edge edge, int n, int max)
return (m); return (m);
} }
return n; // NOTREACHED
default: default:
STBIR__UNIMPLEMENTED("Unimplemented edge type"); STBIR__UNIMPLEMENTED("Unimplemented edge type");