mesa git update 29 nov 2011

1 files changed, 11 insertions, 85 deletions

diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c
index 0081c3b52..f4ec63388 100644
--- a/mesalib/src/mesa/main/texparam.c
+++ b/mesalib/src/mesa/main/texparam.c
@@ -35,6 +35,7 @@
 #include "main/context.h"
 #include "main/enums.h"
 #include "main/formats.h"
+#include "main/image.h"
 #include "main/macros.h"
 #include "main/mfeatures.h"
 #include "main/mtypes.h"
@@ -884,72 +885,6 @@ _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
 }
 
 
-static GLboolean
-base_format_has_channel(GLenum base_format, GLenum pname)
-{
-   switch (pname) {
-   case GL_TEXTURE_RED_SIZE:
-   case GL_TEXTURE_RED_TYPE:
-      if (base_format == GL_RED ||
-	  base_format == GL_RG ||
-	  base_format == GL_RGB ||
-	  base_format == GL_RGBA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_GREEN_SIZE:
-   case GL_TEXTURE_GREEN_TYPE:
-      if (base_format == GL_RG ||
-	  base_format == GL_RGB ||
-	  base_format == GL_RGBA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_BLUE_SIZE:
-   case GL_TEXTURE_BLUE_TYPE:
-      if (base_format == GL_RGB ||
-	  base_format == GL_RGBA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_ALPHA_SIZE:
-   case GL_TEXTURE_ALPHA_TYPE:
-      if (base_format == GL_RGBA ||
-	  base_format == GL_ALPHA ||
-	  base_format == GL_LUMINANCE_ALPHA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_LUMINANCE_SIZE:
-   case GL_TEXTURE_LUMINANCE_TYPE:
-      if (base_format == GL_LUMINANCE ||
-	  base_format == GL_LUMINANCE_ALPHA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_INTENSITY_SIZE:
-   case GL_TEXTURE_INTENSITY_TYPE:
-      if (base_format == GL_INTENSITY) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_DEPTH_SIZE:
-   case GL_TEXTURE_DEPTH_TYPE:
-      if (base_format == GL_DEPTH_STENCIL ||
-	  base_format == GL_DEPTH_COMPONENT) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   default:
-      _mesa_warning(NULL, "%s: Unexpected channel token 0x%x\n",
-		    __FUNCTION__, pname);
-      return GL_FALSE;
-   }
-
-   return GL_FALSE;
-}
-
-
 void GLAPIENTRY
 _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
                               GLenum pname, GLfloat *params )
@@ -1048,34 +983,25 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
       case GL_TEXTURE_GREEN_SIZE:
       case GL_TEXTURE_BLUE_SIZE:
       case GL_TEXTURE_ALPHA_SIZE:
-         if (base_format_has_channel(img->_BaseFormat, pname))
+         if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
             *params = _mesa_get_format_bits(texFormat, pname);
          else
             *params = 0;
          break;
       case GL_TEXTURE_INTENSITY_SIZE:
-         if (img->_BaseFormat != GL_INTENSITY)
-            *params = 0;
-         else {
+      case GL_TEXTURE_LUMINANCE_SIZE:
+         if (_mesa_base_format_has_channel(img->_BaseFormat, pname)) {
             *params = _mesa_get_format_bits(texFormat, pname);
             if (*params == 0) {
-               /* intensity probably stored as rgb texture */
-               *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),
-                              _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));
+               /* intensity or luminance is probably stored as RGB[A] */
+               *params = MIN2(_mesa_get_format_bits(texFormat,
+                                                    GL_TEXTURE_RED_SIZE),
+                              _mesa_get_format_bits(texFormat,
+                                                    GL_TEXTURE_GREEN_SIZE));
             }
          }
-         break;
-      case GL_TEXTURE_LUMINANCE_SIZE:
-         if (img->_BaseFormat != GL_LUMINANCE &&
-             img->_BaseFormat != GL_LUMINANCE_ALPHA)
-            *params = 0;
          else {
-            *params = _mesa_get_format_bits(texFormat, pname);
-            if (*params == 0) {
-               /* luminance probably stored as rgb texture */
-               *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),
-                              _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));
-            }
+            *params = 0;
          }
          break;
       case GL_TEXTURE_DEPTH_SIZE_ARB:
@@ -1122,7 +1048,7 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
       case GL_TEXTURE_DEPTH_TYPE_ARB:
          if (!ctx->Extensions.ARB_texture_float)
             goto invalid_pname;
-	 if (base_format_has_channel(img->_BaseFormat, pname))
+	 if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
 	    *params = _mesa_get_format_datatype(texFormat);
 	 else
 	    *params = GL_NONE;