commit 6d63b6e50371afdcfe6dc7a4239380d07bc8e727
author Jordan Justen <jordan.l.justen@intel.com> Thu Dec 27 13:24:57 2012 -0800
committer Jordan Justen <jordan.l.justen@intel.com> Sat Jan 12 01:40:47 2013 -0800
tree 94a86cece65ce522b1f2383fa69d186a90b99fc0
parent 2ace406b1fa502219d353e5d259d1c4bcd5633a5

glformats: add functions to detect signed/unsigned integer types

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

src/mesa/main/glformats.c

diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
index f33a050..5683d4b 100644
--- a/src/mesa/main/glformats.c
+++ b/src/mesa/main/glformats.c
@@ -353,21 +353,9 @@
  * Test if the given format is an integer (non-normalized) format.
  */
 GLboolean
-_mesa_is_enum_format_integer(GLenum format)
+_mesa_is_enum_format_unsigned_int(GLenum format)
 {
    switch (format) {
-   /* generic integer formats */
-   case GL_RED_INTEGER_EXT:
-   case GL_GREEN_INTEGER_EXT:
-   case GL_BLUE_INTEGER_EXT:
-   case GL_ALPHA_INTEGER_EXT:
-   case GL_RGB_INTEGER_EXT:
-   case GL_RGBA_INTEGER_EXT:
-   case GL_BGR_INTEGER_EXT:
-   case GL_BGRA_INTEGER_EXT:
-   case GL_LUMINANCE_INTEGER_EXT:
-   case GL_LUMINANCE_ALPHA_INTEGER_EXT:
-   case GL_RG_INTEGER:
    /* specific integer formats */
    case GL_RGBA32UI_EXT:
    case GL_RGB32UI_EXT:
@@ -393,6 +381,34 @@
    case GL_INTENSITY8UI_EXT:
    case GL_LUMINANCE8UI_EXT:
    case GL_LUMINANCE_ALPHA8UI_EXT:
+   case GL_RGB10_A2UI:
+      return GL_TRUE;
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+/**
+ * Test if the given format is an integer (non-normalized) format.
+ */
+GLboolean
+_mesa_is_enum_format_signed_int(GLenum format)
+{
+   switch (format) {
+   /* generic integer formats */
+   case GL_RED_INTEGER_EXT:
+   case GL_GREEN_INTEGER_EXT:
+   case GL_BLUE_INTEGER_EXT:
+   case GL_ALPHA_INTEGER_EXT:
+   case GL_RGB_INTEGER_EXT:
+   case GL_RGBA_INTEGER_EXT:
+   case GL_BGR_INTEGER_EXT:
+   case GL_BGRA_INTEGER_EXT:
+   case GL_LUMINANCE_INTEGER_EXT:
+   case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+   case GL_RG_INTEGER:
+   /* specific integer formats */
    case GL_RGBA32I_EXT:
    case GL_RGB32I_EXT:
    case GL_RG32I:
@@ -417,7 +433,6 @@
    case GL_INTENSITY8I_EXT:
    case GL_LUMINANCE8I_EXT:
    case GL_LUMINANCE_ALPHA8I_EXT:
-   case GL_RGB10_A2UI:
       return GL_TRUE;
    default:
       return GL_FALSE;
@@ -426,6 +441,17 @@
 
 
 /**
+ * Test if the given format is an integer (non-normalized) format.
+ */
+GLboolean
+_mesa_is_enum_format_integer(GLenum format)
+{
+   return _mesa_is_enum_format_unsigned_int(format) ||
+          _mesa_is_enum_format_signed_int(format);
+}
+
+
+/**
  * Test if the given type is an integer (non-normalized) format.
  */
 GLboolean

src/mesa/main/glformats.h

diff --git a/src/mesa/main/glformats.h b/src/mesa/main/glformats.h
index ccfb5e1..d1208ef 100644
--- a/src/mesa/main/glformats.h
+++ b/src/mesa/main/glformats.h
@@ -62,6 +62,12 @@
 _mesa_is_enum_format_integer(GLenum format);
 
 extern GLboolean
+_mesa_is_enum_format_unsigned_int(GLenum format);
+
+extern GLboolean
+_mesa_is_enum_format_signed_int(GLenum format);
+
+extern GLboolean
 _mesa_is_enum_format_or_type_integer(GLenum format, GLenum type);
 
 extern GLboolean