Mesa (8.0): mesa: Add support for glGetTexImage on GL_TEXTURE_1D_ARRAY

[Eric Anholt]

Module: Mesa
Branch: 8.0
Commit: 46c146116f43047572ca98c99a9ca0a119227801
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=46c146116f43047572ca98c99a9ca0a119227801

Author: Eric Anholt <eric at anholt.net>
Date:   Fri Jan 20 15:03:12 2012 -0800

mesa: Add support for glGetTexImage on GL_TEXTURE_1D_ARRAY

Similarly to how we handle this in texstore, we have to remap height
to depth so that we MapTextureImage each image layer individually.

Fixes part of Intel oglconform's int-textures advanced.fbo.rtt

NOTE: This is a candidate for the 8.0 branch.

Reviewed-by: Brian Paul <brianp at vmware.com>
(cherry picked from commit 08acd4bd61430beb20a74af23de9f63c8f077467)

---

 src/mesa/main/texgetimage.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/mesa/main/texgetimage.c b/src/mesa/main/texgetimage.c
index 95de24a..4eaa035 100644
--- a/src/mesa/main/texgetimage.c
+++ b/src/mesa/main/texgetimage.c
@@ -312,8 +312,8 @@ get_tex_rgba_uncompressed(struct gl_context *ctx, GLuint dimensions,
    const gl_format texFormat =
       _mesa_get_srgb_format_linear(texImage->TexFormat);
    const GLuint width = texImage->Width;
-   const GLuint height = texImage->Height;
-   const GLuint depth = texImage->Depth;
+   GLuint height = texImage->Height;
+   GLuint depth = texImage->Depth;
    GLuint img, row;
    GLfloat (*rgba)[4];
    GLuint (*rgba_uint)[4];
@@ -327,6 +327,11 @@ get_tex_rgba_uncompressed(struct gl_context *ctx, GLuint dimensions,
       return;
    }
 
+   if (texImage->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
+      depth = height;
+      height = 1;
+   }
+
    for (img = 0; img < depth; img++) {
       GLubyte *srcMap;
       GLint rowstride;