diff options
author | Brian Paul <[email protected]> | 2009-01-06 17:24:23 -0700 |
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committer | Alan Hourihane <[email protected]> | 2009-01-09 11:16:35 +0000 |
commit | 12fe642f96a2a9439f9ac8751151ae6e7fa20049 (patch) | |
tree | 76f98940d800db63cad07f972aec10cb435f25b0 /src/libXvMC | |
parent | aed1bb6bc38a1925f15ad4aea707579f653d82c7 (diff) |
glsl: implement loop unrolling for simple 'for' loops
Loops such as this will be unrolled:
for (i = 0; i < 4; ++i) {
body;
}
where 'body' isn't too large.
This also helps to fix the issue reported in bug #19190. The problem there
is indexing vector types with a variable index. For example:
vec4 v;
v[2] = 1.0; // equivalent to v.z = 1.0
v[i] = 2.0; // variable index into vector!!
Since the for-i loop can be unrolled, we can avoid the problems associated
with variable indexing into a vector (at least in this case).
Diffstat (limited to 'src/libXvMC')
0 files changed, 0 insertions, 0 deletions