X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fimage.c;h=01fbe40a03b418f72ef98f9d1f81246dfaf0b9b7;hb=f0df08abbec173be183d3d6ecf3d4ba5206df179;hp=804e840820d4596fd2a6e3321212e530f887a70e;hpb=f786e46cf4fbf50a1cacfb81e22ee155ffe6edd3;p=mesa.git

diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index 804e840820d..01fbe40a03b 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -1,8 +1,9 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.1
+ * Version:  7.5
  *
  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -755,12 +756,20 @@ _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
                           GLint width, GLint height,
                           GLenum format, GLenum type )
 {
+   GLint bytesPerRow, bytesPerImage, remainder;
+
    ASSERT(packing);
-   ASSERT(type != GL_BITMAP);
 
-   {
+   if (type == GL_BITMAP) {
+      if (packing->RowLength == 0) {
+         bytesPerRow = (width + 7) / 8;
+      }
+      else {
+         bytesPerRow = (packing->RowLength + 7) / 8;
+      }
+   }
+   else {
       const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type);
-      GLint bytesPerRow, bytesPerImage, remainder;
 
       if (bytesPerPixel <= 0)
          return -1;  /* error */
@@ -770,17 +779,18 @@ _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
       else {
          bytesPerRow = bytesPerPixel * packing->RowLength;
       }
-      remainder = bytesPerRow % packing->Alignment;
-      if (remainder > 0)
-         bytesPerRow += (packing->Alignment - remainder);
+   }
 
-      if (packing->ImageHeight == 0)
-         bytesPerImage = bytesPerRow * height;
-      else
-         bytesPerImage = bytesPerRow * packing->ImageHeight;
+   remainder = bytesPerRow % packing->Alignment;
+   if (remainder > 0)
+      bytesPerRow += (packing->Alignment - remainder);
 
-      return bytesPerImage;
-   }
+   if (packing->ImageHeight == 0)
+      bytesPerImage = bytesPerRow * height;
+   else
+      bytesPerImage = bytesPerRow * packing->ImageHeight;
+
+   return bytesPerImage;
 }
 
 
@@ -1677,7 +1687,6 @@ _mesa_apply_stencil_transfer_ops(const GLcontext *ctx, GLuint n,
  * Used to pack an array [][4] of RGBA float colors as specified
  * by the dstFormat, dstType and dstPacking.  Used by glReadPixels,
  * glGetConvolutionFilter(), etc.
- * Incoming colors will be clamped to [0,1] if needed.
  * Note: the rgba values will be modified by this function when any pixel
  * transfer ops are enabled.
  */
@@ -1691,19 +1700,12 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
    GLfloat luminance[MAX_WIDTH];
    const GLint comps = _mesa_components_in_format(dstFormat);
    GLuint i;
-   /* clamping only applies to colors, not the dudv values, but still need
-      it if converting to unsigned values (which doesn't make much sense) */
-   if (dstFormat == GL_DUDV_ATI || dstFormat == GL_DU8DV8_ATI) {
-      switch (dstType) {
-         case GL_UNSIGNED_BYTE:
-         case GL_UNSIGNED_SHORT:
-         case GL_UNSIGNED_INT:
-            transferOps |= IMAGE_CLAMP_BIT;
-            break;
-            /* actually might want clamp to [-1,1] otherwise but shouldn't matter? */
-      }
-   }
-   else if (dstType != GL_FLOAT || ctx->Color.ClampReadColor == GL_TRUE) {
+
+   /* XXX
+    * This test should probably go away.  Have the caller set/clear the
+    * IMAGE_CLAMP_BIT as needed.
+    */
+   if (dstType != GL_FLOAT || ctx->Color.ClampReadColor == GL_TRUE) {
       /* need to clamp to [0, 1] */
       transferOps |= IMAGE_CLAMP_BIT;
    }
@@ -2378,9 +2380,9 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGB) {
             GLubyte *dst = (GLubyte *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][RCOMP] * 7.0F)) << 5)
-                      | (((GLint) (rgba[i][GCOMP] * 7.0F)) << 2)
-                      | (((GLint) (rgba[i][BCOMP] * 3.0F))     );
+               dst[i] = (IROUND(rgba[i][RCOMP] * 7.0F) << 5)
+                      | (IROUND(rgba[i][GCOMP] * 7.0F) << 2)
+                      | (IROUND(rgba[i][BCOMP] * 3.0F)     );
             }
          }
          break;
@@ -2388,9 +2390,9 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGB) {
             GLubyte *dst = (GLubyte *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][RCOMP] * 7.0F))     )
-                      | (((GLint) (rgba[i][GCOMP] * 7.0F)) << 3)
-                      | (((GLint) (rgba[i][BCOMP] * 3.0F)) << 6);
+               dst[i] = (IROUND(rgba[i][RCOMP] * 7.0F)     )
+                      | (IROUND(rgba[i][GCOMP] * 7.0F) << 3)
+                      | (IROUND(rgba[i][BCOMP] * 3.0F) << 6);
             }
          }
          break;
@@ -2398,9 +2400,9 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGB) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F)) << 11)
-                      | (((GLint) (rgba[i][GCOMP] * 63.0F)) <<  5)
-                      | (((GLint) (rgba[i][BCOMP] * 31.0F))      );
+               dst[i] = (IROUND(rgba[i][RCOMP] * 31.0F) << 11)
+                      | (IROUND(rgba[i][GCOMP] * 63.0F) <<  5)
+                      | (IROUND(rgba[i][BCOMP] * 31.0F)      );
             }
          }
          break;
@@ -2408,9 +2410,9 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGB) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F))      )
-                      | (((GLint) (rgba[i][GCOMP] * 63.0F)) <<  5)
-                      | (((GLint) (rgba[i][BCOMP] * 31.0F)) << 11);
+               dst[i] = (IROUND(rgba[i][RCOMP] * 31.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 63.0F) <<  5)
+                      | (IROUND(rgba[i][BCOMP] * 31.0F) << 11);
             }
          }
          break;
@@ -2418,28 +2420,28 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGBA) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][RCOMP] * 15.0F)) << 12)
-                      | (((GLint) (rgba[i][GCOMP] * 15.0F)) <<  8)
-                      | (((GLint) (rgba[i][BCOMP] * 15.0F)) <<  4)
-                      | (((GLint) (rgba[i][ACOMP] * 15.0F))      );
+               dst[i] = (IROUND(rgba[i][RCOMP] * 15.0F) << 12)
+                      | (IROUND(rgba[i][GCOMP] * 15.0F) <<  8)
+                      | (IROUND(rgba[i][BCOMP] * 15.0F) <<  4)
+                      | (IROUND(rgba[i][ACOMP] * 15.0F)      );
             }
          }
          else if (dstFormat == GL_BGRA) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][BCOMP] * 15.0F)) << 12)
-                      | (((GLint) (rgba[i][GCOMP] * 15.0F)) <<  8)
-                      | (((GLint) (rgba[i][RCOMP] * 15.0F)) <<  4)
-                      | (((GLint) (rgba[i][ACOMP] * 15.0F))      );
+               dst[i] = (IROUND(rgba[i][BCOMP] * 15.0F) << 12)
+                      | (IROUND(rgba[i][GCOMP] * 15.0F) <<  8)
+                      | (IROUND(rgba[i][RCOMP] * 15.0F) <<  4)
+                      | (IROUND(rgba[i][ACOMP] * 15.0F)      );
             }
          }
          else if (dstFormat == GL_ABGR_EXT) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][ACOMP] * 15.0F)) << 12)
-                      | (((GLint) (rgba[i][BCOMP] * 15.0F)) <<  8)
-                      | (((GLint) (rgba[i][GCOMP] * 15.0F)) <<  4)
-                      | (((GLint) (rgba[i][RCOMP] * 15.0F))      );
+               dst[i] = (IROUND(rgba[i][ACOMP] * 15.0F) << 12)
+                      | (IROUND(rgba[i][BCOMP] * 15.0F) <<  8)
+                      | (IROUND(rgba[i][GCOMP] * 15.0F) <<  4)
+                      | (IROUND(rgba[i][RCOMP] * 15.0F)      );
             }
          }
          break;
@@ -2447,28 +2449,28 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGBA) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][RCOMP] * 15.0F))      )
-                      | (((GLint) (rgba[i][GCOMP] * 15.0F)) <<  4)
-                      | (((GLint) (rgba[i][BCOMP] * 15.0F)) <<  8)
-                      | (((GLint) (rgba[i][ACOMP] * 15.0F)) << 12);
+               dst[i] = (IROUND(rgba[i][RCOMP] * 15.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 15.0F) <<  4)
+                      | (IROUND(rgba[i][BCOMP] * 15.0F) <<  8)
+                      | (IROUND(rgba[i][ACOMP] * 15.0F) << 12);
             }
          }
          else if (dstFormat == GL_BGRA) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][BCOMP] * 15.0F))      )
-                      | (((GLint) (rgba[i][GCOMP] * 15.0F)) <<  4)
-                      | (((GLint) (rgba[i][RCOMP] * 15.0F)) <<  8)
-                      | (((GLint) (rgba[i][ACOMP] * 15.0F)) << 12);
+               dst[i] = (IROUND(rgba[i][BCOMP] * 15.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 15.0F) <<  4)
+                      | (IROUND(rgba[i][RCOMP] * 15.0F) <<  8)
+                      | (IROUND(rgba[i][ACOMP] * 15.0F) << 12);
             }
          }
          else if (dstFormat == GL_ABGR_EXT) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][ACOMP] * 15.0F))      )
-                      | (((GLint) (rgba[i][BCOMP] * 15.0F)) <<  4)
-                      | (((GLint) (rgba[i][GCOMP] * 15.0F)) <<  8)
-                      | (((GLint) (rgba[i][RCOMP] * 15.0F)) << 12);
+               dst[i] = (IROUND(rgba[i][ACOMP] * 15.0F)      )
+                      | (IROUND(rgba[i][BCOMP] * 15.0F) <<  4)
+                      | (IROUND(rgba[i][GCOMP] * 15.0F) <<  8)
+                      | (IROUND(rgba[i][RCOMP] * 15.0F) << 12);
             }
          }
          break;
@@ -2476,28 +2478,28 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGBA) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F)) << 11)
-                      | (((GLint) (rgba[i][GCOMP] * 31.0F)) <<  6)
-                      | (((GLint) (rgba[i][BCOMP] * 31.0F)) <<  1)
-                      | (((GLint) (rgba[i][ACOMP] *  1.0F))      );
+               dst[i] = (IROUND(rgba[i][RCOMP] * 31.0F) << 11)
+                      | (IROUND(rgba[i][GCOMP] * 31.0F) <<  6)
+                      | (IROUND(rgba[i][BCOMP] * 31.0F) <<  1)
+                      | (IROUND(rgba[i][ACOMP] *  1.0F)      );
             }
          }
          else if (dstFormat == GL_BGRA) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][BCOMP] * 31.0F)) << 11)
-                      | (((GLint) (rgba[i][GCOMP] * 31.0F)) <<  6)
-                      | (((GLint) (rgba[i][RCOMP] * 31.0F)) <<  1)
-                      | (((GLint) (rgba[i][ACOMP] *  1.0F))      );
+               dst[i] = (IROUND(rgba[i][BCOMP] * 31.0F) << 11)
+                      | (IROUND(rgba[i][GCOMP] * 31.0F) <<  6)
+                      | (IROUND(rgba[i][RCOMP] * 31.0F) <<  1)
+                      | (IROUND(rgba[i][ACOMP] *  1.0F)      );
             }
          }
          else if (dstFormat == GL_ABGR_EXT) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][ACOMP] * 31.0F)) << 11)
-                      | (((GLint) (rgba[i][BCOMP] * 31.0F)) <<  6)
-                      | (((GLint) (rgba[i][GCOMP] * 31.0F)) <<  1)
-                      | (((GLint) (rgba[i][RCOMP] *  1.0F))      );
+               dst[i] = (IROUND(rgba[i][ACOMP] * 31.0F) << 11)
+                      | (IROUND(rgba[i][BCOMP] * 31.0F) <<  6)
+                      | (IROUND(rgba[i][GCOMP] * 31.0F) <<  1)
+                      | (IROUND(rgba[i][RCOMP] *  1.0F)      );
             }
          }
          break;
@@ -2505,28 +2507,28 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGBA) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F))      )
-                      | (((GLint) (rgba[i][GCOMP] * 31.0F)) <<  5)
-                      | (((GLint) (rgba[i][BCOMP] * 31.0F)) << 10)
-                      | (((GLint) (rgba[i][ACOMP] *  1.0F)) << 15);
+               dst[i] = (IROUND(rgba[i][RCOMP] * 31.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 31.0F) <<  5)
+                      | (IROUND(rgba[i][BCOMP] * 31.0F) << 10)
+                      | (IROUND(rgba[i][ACOMP] *  1.0F) << 15);
             }
          }
          else if (dstFormat == GL_BGRA) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][BCOMP] * 31.0F))      )
-                      | (((GLint) (rgba[i][GCOMP] * 31.0F)) <<  5)
-                      | (((GLint) (rgba[i][RCOMP] * 31.0F)) << 10)
-                      | (((GLint) (rgba[i][ACOMP] *  1.0F)) << 15);
+               dst[i] = (IROUND(rgba[i][BCOMP] * 31.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 31.0F) <<  5)
+                      | (IROUND(rgba[i][RCOMP] * 31.0F) << 10)
+                      | (IROUND(rgba[i][ACOMP] *  1.0F) << 15);
             }
          }
          else if (dstFormat == GL_ABGR_EXT) {
             GLushort *dst = (GLushort *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLint) (rgba[i][ACOMP] * 31.0F))      )
-                      | (((GLint) (rgba[i][BCOMP] * 31.0F)) <<  5)
-                      | (((GLint) (rgba[i][GCOMP] * 31.0F)) << 10)
-                      | (((GLint) (rgba[i][RCOMP] *  1.0F)) << 15);
+               dst[i] = (IROUND(rgba[i][ACOMP] * 31.0F)      )
+                      | (IROUND(rgba[i][BCOMP] * 31.0F) <<  5)
+                      | (IROUND(rgba[i][GCOMP] * 31.0F) << 10)
+                      | (IROUND(rgba[i][RCOMP] *  1.0F) << 15);
             }
          }
          break;
@@ -2534,28 +2536,28 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGBA) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][RCOMP] * 255.0F)) << 24)
-                      | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 16)
-                      | (((GLuint) (rgba[i][BCOMP] * 255.0F)) <<  8)
-                      | (((GLuint) (rgba[i][ACOMP] * 255.0F))      );
+               dst[i] = (IROUND(rgba[i][RCOMP] * 255.F) << 24)
+                      | (IROUND(rgba[i][GCOMP] * 255.F) << 16)
+                      | (IROUND(rgba[i][BCOMP] * 255.F) <<  8)
+                      | (IROUND(rgba[i][ACOMP] * 255.F)      );
             }
          }
          else if (dstFormat == GL_BGRA) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][BCOMP] * 255.0F)) << 24)
-                      | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 16)
-                      | (((GLuint) (rgba[i][RCOMP] * 255.0F)) <<  8)
-                      | (((GLuint) (rgba[i][ACOMP] * 255.0F))      );
+               dst[i] = (IROUND(rgba[i][BCOMP] * 255.F) << 24)
+                      | (IROUND(rgba[i][GCOMP] * 255.F) << 16)
+                      | (IROUND(rgba[i][RCOMP] * 255.F) <<  8)
+                      | (IROUND(rgba[i][ACOMP] * 255.F)      );
             }
          }
          else if (dstFormat == GL_ABGR_EXT) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][ACOMP] * 255.0F)) << 24)
-                      | (((GLuint) (rgba[i][BCOMP] * 255.0F)) << 16)
-                      | (((GLuint) (rgba[i][GCOMP] * 255.0F)) <<  8)
-                      | (((GLuint) (rgba[i][RCOMP] * 255.0F))      );
+               dst[i] = (IROUND(rgba[i][ACOMP] * 255.F) << 24)
+                      | (IROUND(rgba[i][BCOMP] * 255.F) << 16)
+                      | (IROUND(rgba[i][GCOMP] * 255.F) <<  8)
+                      | (IROUND(rgba[i][RCOMP] * 255.F)      );
             }
          }
          break;
@@ -2563,28 +2565,28 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGBA) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][RCOMP] * 255.0F))      )
-                      | (((GLuint) (rgba[i][GCOMP] * 255.0F)) <<  8)
-                      | (((GLuint) (rgba[i][BCOMP] * 255.0F)) << 16)
-                      | (((GLuint) (rgba[i][ACOMP] * 255.0F)) << 24);
+               dst[i] = (IROUND(rgba[i][RCOMP] * 255.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 255.0F) <<  8)
+                      | (IROUND(rgba[i][BCOMP] * 255.0F) << 16)
+                      | (IROUND(rgba[i][ACOMP] * 255.0F) << 24);
             }
          }
          else if (dstFormat == GL_BGRA) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][BCOMP] * 255.0F))      )
-                      | (((GLuint) (rgba[i][GCOMP] * 255.0F)) <<  8)
-                      | (((GLuint) (rgba[i][RCOMP] * 255.0F)) << 16)
-                      | (((GLuint) (rgba[i][ACOMP] * 255.0F)) << 24);
+               dst[i] = (IROUND(rgba[i][BCOMP] * 255.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 255.0F) <<  8)
+                      | (IROUND(rgba[i][RCOMP] * 255.0F) << 16)
+                      | (IROUND(rgba[i][ACOMP] * 255.0F) << 24);
             }
          }
          else if (dstFormat == GL_ABGR_EXT) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][ACOMP] * 255.0F))      )
-                      | (((GLuint) (rgba[i][BCOMP] * 255.0F)) <<  8)
-                      | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 16)
-                      | (((GLuint) (rgba[i][RCOMP] * 255.0F)) << 24);
+               dst[i] = (IROUND(rgba[i][ACOMP] * 255.0F)      )
+                      | (IROUND(rgba[i][BCOMP] * 255.0F) <<  8)
+                      | (IROUND(rgba[i][GCOMP] * 255.0F) << 16)
+                      | (IROUND(rgba[i][RCOMP] * 255.0F) << 24);
             }
          }
          break;
@@ -2592,28 +2594,28 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGBA) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][RCOMP] * 1023.0F)) << 22)
-                      | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 12)
-                      | (((GLuint) (rgba[i][BCOMP] * 1023.0F)) <<  2)
-                      | (((GLuint) (rgba[i][ACOMP] *    3.0F))      );
+               dst[i] = (IROUND(rgba[i][RCOMP] * 1023.0F) << 22)
+                      | (IROUND(rgba[i][GCOMP] * 1023.0F) << 12)
+                      | (IROUND(rgba[i][BCOMP] * 1023.0F) <<  2)
+                      | (IROUND(rgba[i][ACOMP] *    3.0F)      );
             }
          }
          else if (dstFormat == GL_BGRA) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 22)
-                      | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 12)
-                      | (((GLuint) (rgba[i][RCOMP] * 1023.0F)) <<  2)
-                      | (((GLuint) (rgba[i][ACOMP] *    3.0F))      );
+               dst[i] = (IROUND(rgba[i][BCOMP] * 1023.0F) << 22)
+                      | (IROUND(rgba[i][GCOMP] * 1023.0F) << 12)
+                      | (IROUND(rgba[i][RCOMP] * 1023.0F) <<  2)
+                      | (IROUND(rgba[i][ACOMP] *    3.0F)      );
             }
          }
          else if (dstFormat == GL_ABGR_EXT) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][ACOMP] * 1023.0F)) << 22)
-                      | (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 12)
-                      | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) <<  2)
-                      | (((GLuint) (rgba[i][RCOMP] *    3.0F))      );
+               dst[i] = (IROUND(rgba[i][ACOMP] * 1023.0F) << 22)
+                      | (IROUND(rgba[i][BCOMP] * 1023.0F) << 12)
+                      | (IROUND(rgba[i][GCOMP] * 1023.0F) <<  2)
+                      | (IROUND(rgba[i][RCOMP] *    3.0F)      );
             }
          }
          break;
@@ -2621,28 +2623,28 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
          if (dstFormat == GL_RGBA) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][RCOMP] * 1023.0F))      )
-                      | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 10)
-                      | (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 20)
-                      | (((GLuint) (rgba[i][ACOMP] *    3.0F)) << 30);
+               dst[i] = (IROUND(rgba[i][RCOMP] * 1023.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 1023.0F) << 10)
+                      | (IROUND(rgba[i][BCOMP] * 1023.0F) << 20)
+                      | (IROUND(rgba[i][ACOMP] *    3.0F) << 30);
             }
          }
          else if (dstFormat == GL_BGRA) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][BCOMP] * 1023.0F))      )
-                      | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 10)
-                      | (((GLuint) (rgba[i][RCOMP] * 1023.0F)) << 20)
-                      | (((GLuint) (rgba[i][ACOMP] *    3.0F)) << 30);
+               dst[i] = (IROUND(rgba[i][BCOMP] * 1023.0F)      )
+                      | (IROUND(rgba[i][GCOMP] * 1023.0F) << 10)
+                      | (IROUND(rgba[i][RCOMP] * 1023.0F) << 20)
+                      | (IROUND(rgba[i][ACOMP] *    3.0F) << 30);
             }
          }
          else if (dstFormat == GL_ABGR_EXT) {
             GLuint *dst = (GLuint *) dstAddr;
             for (i=0;i<n;i++) {
-               dst[i] = (((GLuint) (rgba[i][ACOMP] * 1023.0F))      )
-                      | (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 10)
-                      | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 20)
-                      | (((GLuint) (rgba[i][RCOMP] *    3.0F)) << 30);
+               dst[i] = (IROUND(rgba[i][ACOMP] * 1023.0F)      )
+                      | (IROUND(rgba[i][BCOMP] * 1023.0F) << 10)
+                      | (IROUND(rgba[i][GCOMP] * 1023.0F) << 20)
+                      | (IROUND(rgba[i][RCOMP] *    3.0F) << 30);
             }
          }
          break;
@@ -2870,7 +2872,7 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
             }
             else {
                for (i = 0; i < n; i++)
-                  indexes[i] = s[i] & 0xfff;  /* lower 8 bits */
+                  indexes[i] = s[i] & 0xff;  /* lower 8 bits */
             }
          }
          break;
@@ -4554,6 +4556,17 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
          }
          return;
       }
+      if (srcType == GL_UNSIGNED_INT_24_8
+          && dstType == GL_UNSIGNED_INT
+          && depthMax == 0xffffff) {
+         const GLuint *src = (const GLuint *) source;
+         GLuint *dst = (GLuint *) dest;
+         GLuint i;
+         for (i = 0; i < n; i++) {
+            dst[i] = src[i] >> 8;
+         }
+         return;
+      }
       /* XXX may want to add additional cases here someday */
    }