Mesa (master): meta: texture rectangle textures may not have mipmaps

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: bf6c1b74705243efdd43f07d381768fceede1f91
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=bf6c1b74705243efdd43f07d381768fceede1f91

Author: Pauli Nieminen <pauli.nieminen at linux.intel.com>
Date:   Tue Jun 12 21:38:59 2012 +0300

meta: texture rectangle textures may not have mipmaps

Avoid INVALID_OPERATION error if decompressing rectangle texture.
Setting mipmap level limits for those textures is error that must not be
hit by meta code to mislead user.

[v3/Kayden]: Resolve conflicts due to Eric picking a subset of Pauli's
original changes.

Signed-off-by: Pauli Nieminen <pauli.nieminen at linux.intel.com>
Reviewed-by: Brian Paul <brianp at vmware.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/common/meta.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 850a2b4..d36b1a3 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -3410,8 +3410,10 @@ decompress_texture_image(struct gl_context *ctx,
       const GLint maxLevelSave = texObj->MaxLevel;
 
       /* restrict sampling to the texture level of interest */
-      _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, texImage->Level);
-      _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, texImage->Level);
+      if (target != GL_TEXTURE_RECTANGLE_ARB) {
+         _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, texImage->Level);
+         _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, texImage->Level);
+      }
 
       /* No sRGB decode or encode.*/
       if (ctx->Extensions.EXT_framebuffer_sRGB) {