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Diffstat (limited to 'src/mesa/main/mipmap.c')
-rw-r--r--src/mesa/main/mipmap.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/mesa/main/mipmap.c b/src/mesa/main/mipmap.c
index 3dd4b3391b..af2bf8fe22 100644
--- a/src/mesa/main/mipmap.c
+++ b/src/mesa/main/mipmap.c
@@ -85,7 +85,7 @@ bytes_per_pixel(GLenum datatype, GLuint comps)
rowC[j][e], rowC[k][e], \
rowD[j][e], rowD[k][e]); \
} while(0)
-
+
#define FILTER_F_3D(e) \
do { \
dst[i][e] = (rowA[j][e] + rowA[k][e] \
@@ -226,7 +226,6 @@ do_row(GLenum datatype, GLuint comps, GLint srcWidth,
dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4;
}
}
-
else if (datatype == GL_FLOAT && comps == 4) {
GLuint i, j, k;
const GLfloat(*rowA)[4] = (const GLfloat(*)[4]) srcRowA;
@@ -471,6 +470,17 @@ do_row(GLenum datatype, GLuint comps, GLint srcWidth,
dst[i] = (blue << 5) | (green << 2) | red;
}
}
+ else if (datatype == GL_BYTE && comps == 2) {
+ GLuint i, j, k;
+ const GLbyte(*rowA)[2] = (const GLbyte(*)[2]) srcRowA;
+ const GLbyte(*rowB)[2] = (const GLbyte(*)[2]) srcRowB;
+ GLbyte(*dst)[2] = (GLbyte(*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) >> 2;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) >> 2;
+ }
+ }
else {
_mesa_problem(NULL, "bad format in do_row()");
}