mesa: Change "BRIAN PAUL" to "THE AUTHORS" in license text.

[mesa.git] / src / mesa / main / macros.h

diff --git a/src/mesa/main/macros.h b/src/mesa/main/macros.h
index 14a5d5fe16efbc09e9763ba5a148e5d4b05a6db4..e8a5722e95415cca10fe77a9e327012afb630237 100644 (file)
--- a/src/mesa/main/macros.h
+++ b/src/mesa/main/macros.h
@@ -22,7 +22,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
@@ -656,6 +656,25 @@ INTERP_4F(GLfloat t, GLfloat dst[4], const GLfloat out[4], const GLfloat in[4])
 #define MIN3( A, B, C ) ((A) < (B) ? MIN2(A, C) : MIN2(B, C))
 #define MAX3( A, B, C ) ((A) > (B) ? MAX2(A, C) : MAX2(B, C))
 
+static inline unsigned
+minify(unsigned value, unsigned levels)
+{
+    return MAX2(1, value >> levels);
+}
+
+/**
+ * Align a value up to an alignment value
+ *
+ * If \c value is not already aligned to the requested alignment value, it
+ * will be rounded up.
+ *
+ * \param value  Value to be rounded
+ * \param alignment  Alignment value to be used.  This must be a power of two.
+ *
+ * \sa ROUND_DOWN_TO()
+ */
+#define ALIGN(value, alignment)  (((value) + alignment - 1) & ~(alignment - 1))
+
 
 
 /** Cross product of two 3-element vectors */
@@ -753,5 +772,8 @@ DIFFERENT_SIGNS(GLfloat x, GLfloat y)
 #define ENUM_TO_DOUBLE(E)  ((GLdouble)(GLint)(E))
 #define ENUM_TO_BOOLEAN(E) ((E) ? GL_TRUE : GL_FALSE)
 
+/* Compute the size of an array */
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+
 
 #endif