This fixes cases such as:
vec4 v4;
vec2 v2;
v4.xz.yx = v2;
The last line now correctly compiles into MOV TEMP[1].xz, TEMP[0].yyxw;
Helps to fix the Humus Domino demo. See bug 19189.
MSVC may not support full C99, but supports more than plain C90. And
-pedantic without -std=c99 generates too many spurious warnings
(specially C++ style comments) to be of any use.
Note that using certain C99 features in the cross-platform parts of Gallium
is still not possible; namely mid-of-scope variable declarations and named
structure initializers will break MSVC builds.
This adds all of the `mglu' symbols to the list of symbol exports
for GLU. Without this patch, mangled GLU symbols are considered
`internal' symbols, and calling any results in undefined references.
Put setup.v{min,mid,max,provoke} into a union with qword vertex_headers.
Rewrite vertex sorting to more efficiently handle the packed data items.
Reduces spu_tri.o by ~128 bytes.
Replace int setup.span{left,right}[2] with vec_uint4 setup.span.quad
SIMDize calculate_mask() and inline into into flush_spans()
Set setup.span.quad members using spu_shuffle() or spu_sel().
Reduces spu_tri.o by ~116 bytes.
Basic for/while loops work now.
Only one level of loop nesting is supported at this time (same for if/else).
The progs/glsl/mandelbrot demo works, but the colors are too dim.
Now only the samplers that are actually used by texture() functions are
saved in the uniform variable list. Before, we could run out of samplers
if too many were declared while only some of them were actually used.
The max texture coord units is still 8. All the fixed-function paths are
still limited to 8 too. But GLSL shaders can use more samplers now.
Note that some texcoord-related data structures are declared to be 16
elements in size rather than 8. This just simplifies the code in a few
places; the extra elements aren't accessible to the user.
These changes haven't been extensively tested yet, but sanity checking has
been done.
It should be possible to increase the max image units/samplers to 32 without
doing anything special. Beyond that we'll need longer bitfields in a few
places.
