mesa: Fix copy-and-paste bug in do_row_3D

Several of the half-float cases used 4 as the texel size when it
should have been some smaller value.

NOTE: This is a candidate for the 8.0 branch.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43324
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43325
(cherry picked from commit 5c341b7df3c1058d586629394e53e9e26ae2cc01)

diff --git a/src/mesa/main/mipmap.c b/src/mesa/main/mipmap.c
index 03ce536..756316a 100644 (file)
--- a/src/mesa/main/mipmap.c
+++ b/src/mesa/main/mipmap.c
@@ -991,7 +991,7 @@ do_row_3D(GLenum datatype, GLuint comps, GLint srcWidth,
       }
    }
    else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 3)) {
-      DECLARE_ROW_POINTERS(GLhalfARB, 4);
+      DECLARE_ROW_POINTERS(GLhalfARB, 3);
 
       for (i = j = 0, k = k0; i < (GLuint) dstWidth;
            i++, j += colStride, k += colStride) {
@@ -1001,7 +1001,7 @@ do_row_3D(GLenum datatype, GLuint comps, GLint srcWidth,
       }
    }
    else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 2)) {
-      DECLARE_ROW_POINTERS(GLhalfARB, 4);
+      DECLARE_ROW_POINTERS(GLhalfARB, 2);
 
       for (i = j = 0, k = k0; i < (GLuint) dstWidth;
            i++, j += colStride, k += colStride) {
@@ -1010,7 +1010,7 @@ do_row_3D(GLenum datatype, GLuint comps, GLint srcWidth,
       }
    }
    else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 1)) {
-      DECLARE_ROW_POINTERS(GLhalfARB, 4);
+      DECLARE_ROW_POINTERS(GLhalfARB, 1);
 
       for (i = j = 0, k = k0; i < (GLuint) dstWidth;
            i++, j += colStride, k += colStride) {