mesa: Don't call driver RenderTexture for really broken textures

This fixes the segfault in the '0x0 texture' subtest of piglit's
fbo-incomplete test.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "9.1 9.2" mesa-stable@lists.freedesktop.org
(cherry picked from commit fb49713f8ed099559d255403dc1065a06305e0d8)

Conflicts:
	src/mesa/main/fbobject.c
mesa: Don't call driver RenderTexture for invalid zoffset

This fixes the segfault in the 'invalid slice of 3D texture' and
'invalid layer of an array texture' subtests of piglit's fbo-incomplete
test.

The 'invalid layer of an array texture' subtest still fails.

v2: Fix off-by-one comparison error noticed by Chris Forbes.  Also,
1D_ARRAY textures have Depth == 1.  Instead, compare against Height.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> [v1]
Cc: "9.1 9.2" mesa-stable@lists.freedesktop.org
(cherry picked from commit 41485fea7c6061cca9d2706f39fa425da291b260)
mesa: Generate a renderbuffer wrapper even if the texture has no image

This prevents a segfault in check_begin_texture_render when an FBO is
rebound while in this state.  This fixes the piglit test
fbo-incomplete-invalid-texture.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "9.1 9.2" mesa-stable@lists.freedesktop.org
(cherry picked from commit 2f9fe2d80a35b8857682771fddbee628213da7b3)

Conflicts:
	src/mesa/main/fbobject.c
glsl: Move and refine test for unsized arrays in GLSL ES

GLSL ES does not allow unsized arrays, and GLSL ES 1.00 does not allow
array initializers.  However, GLSL ES 3.00 allows array initializers,
and the initializer can explicitly size the array.  The specification
even includes some examples of this:

    float x[] = float[2] (1.0, 2.0);     // declares an array of size 2
    float y[] = float[] (1.0, 2.0, 3.0); // declares an array of size 3

    float a[5];
    float b[] = a;

Move the unsized array check to after the initializer has been
processed.  If the array is still unsized, generate the error.  This
should have no effect in GLSL ES 1.00 because, as previously mentioned,
array initializers are not allowed.

Fixes piglit "glsl-es-3.00 compiler array-sized-by-initializer.vert".

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "9.1 9.2" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 42624b1c8145375f987e380bb78456658f845a17)

Conflicts:
	src/glsl/ast_to_hir.cpp
glx: Initialize OpenGL version to 1.0

The old code in dri2_glx suffered from a typographical error that caused
the default version to be 2.1 instead of 1.2 (minimum required by the
Linux OpenGL ABI).  drisw_glx had a similar error resulting in a default
version of 0.1.

Some driver/card combinations (r200/RV280, i915/915G) don't support
OpenGL 2.1.  These create in some corner cases an indirect context
instead of a direct context when calling glXCreateContextAttribsARB().
This happens because of a bad default value.  To avoid this, just used
the default value specified by the GLX_ARB_create_context specification:

    "The default values for GLX_CONTEXT_MAJOR_VERSION_ARB and
    GLX_CONTEXT_MINOR_VERSION_ARB are 1 and 0 respectively. In this
    case, implementations will typically return the most recent version
    of OpenGL they support which is backwards compatible with OpenGL 1.0
    (e.g. 3.0, 3.1 + GL_ARB_compatibility, or 3.2 compatibility
    profile)"

Refactor all the default value setting to dri2_convert_glx_attribs, and
make sure the correct defaults are set in that one place.

Signed-off-by: Rico Schüller <kgbricola@web.de>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla http://bugs.winehq.org/show_bug.cgi?id=34238
Cc: "9.1 9.2" <mesa-stable@lists.freedesktop.org>

(cherry picked from commit 8b302e1635534bfc6ed3ad671f2428470b3a765d)

Conflicts:
	src/glx/dri2_glx.c
	src/glx/dri_common.c
	src/glx/drisw_glx.c