From 2a1abdc8fe640583dac90dc316caf2d40b9ee4e2 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Mon, 14 Jan 2013 15:13:52 +0100
Subject: libxtrans xwininfo libX11 libXau libXmu libXdmcp mesa mkfontscale
 xkeyboard-config git update 14 jan 2013

libxtrans: ec3136232f7ce930f9ca812b6ab42a71b60af4af
xwininfo: 3e60a26559221e561770710a8c4ed0b8ebc31afb
libX11: 3cd974b1d4d1fa6389d3695fa9fcc0c22a51d50c
libXau: 8570d287396934f26224c76d48d7f17d87380e72
libXmu: 9b253d99d5b4f3fbb681c2cb1b84f8f9acfee528
libXdmcp: ca65a92405500393f09d34388edbbf6350e6c146
mesa: e3e1ffb2520498584ef402213d0c8aa4303a46a3
mkfontscale: 1157b3039551b552b483f05f6a411e57941a87c0
---
 mesalib/src/mesa/main/glformats.c | 83 ++++++++++++++++++++++++++++++++-------
 1 file changed, 68 insertions(+), 15 deletions(-)

(limited to 'mesalib/src/mesa/main/glformats.c')

diff --git a/mesalib/src/mesa/main/glformats.c b/mesalib/src/mesa/main/glformats.c
index f33a0503d..ff56ffad0 100644
--- a/mesalib/src/mesa/main/glformats.c
+++ b/mesalib/src/mesa/main/glformats.c
@@ -271,7 +271,8 @@ _mesa_bytes_per_pixel(GLenum format, GLenum type)
    case GL_UNSIGNED_INT_10_10_10_2:
    case GL_UNSIGNED_INT_2_10_10_10_REV:
       if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
-          format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
+          format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT ||
+          format == GL_RGB)
          return sizeof(GLuint);
       else
          return -1;
@@ -353,21 +354,9 @@ _mesa_bytes_per_vertex_attrib(GLint comps, GLenum type)
  * 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 +382,34 @@ _mesa_is_enum_format_integer(GLenum format)
    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 +434,6 @@ _mesa_is_enum_format_integer(GLenum format)
    case GL_INTENSITY8I_EXT:
    case GL_LUMINANCE8I_EXT:
    case GL_LUMINANCE_ALPHA8I_EXT:
-   case GL_RGB10_A2UI:
       return GL_TRUE;
    default:
       return GL_FALSE;
@@ -425,6 +441,17 @@ _mesa_is_enum_format_integer(GLenum format)
 }
 
 
+/**
+ * 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.
  */
@@ -1031,6 +1058,32 @@ _mesa_base_format_has_channel(GLenum base_format, GLenum pname)
 }
 
 
+/**
+ * Returns the number of channels/components for a base format.
+ */
+GLint
+_mesa_base_format_component_count(GLenum base_format)
+{
+   switch (base_format) {
+   case GL_RED:
+   case GL_ALPHA:
+   case GL_INTENSITY:
+   case GL_DEPTH_COMPONENT:
+      return 1;
+   case GL_RG:
+   case GL_LUMINANCE_ALPHA:
+   case GL_DEPTH_STENCIL:
+      return 2;
+   case GL_RGB:
+      return 3;
+   case GL_RGBA:
+      return 4;
+   default:
+      return -1;
+   }
+}
+
+
 /**
  * If format is a generic compressed format, return the corresponding
  * non-compressed format.  For other formats, return the format as-is.
-- 
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