diff options
| author | Nicolai Hähnle <nhaehnle@gmail.com> | 2009-10-03 01:26:38 +0200 |
|---|---|---|
| committer | Nicolai Hähnle <nhaehnle@gmail.com> | 2009-10-03 01:39:13 +0200 |
| commit | bbe384c86afeaf5995cddd286a76e1fd789e18f1 (patch) | |
| tree | abfd58da4495819027ac24f39783c3c6f6316550 /src/mesa/drivers/dri/r300/r300_fragprog_common.c | |
| parent | c01a77d304776153e968d68617a2c84e3af35555 (diff) | |
r300: Workaround problem on R500 with very large fragment programs
The non-KMS interface is to blame here. In theory, a proper fix
could be produced that works for the KMS interface only, but it
require cleaning a lot of mess. Easier to just do it right in r300g.
Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>
Diffstat (limited to 'src/mesa/drivers/dri/r300/r300_fragprog_common.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_fragprog_common.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_fragprog_common.c b/src/mesa/drivers/dri/r300/r300_fragprog_common.c index 0bdc90b4a8..70c9252894 100644 --- a/src/mesa/drivers/dri/r300/r300_fragprog_common.c +++ b/src/mesa/drivers/dri/r300/r300_fragprog_common.c @@ -239,6 +239,19 @@ static void translate_fragment_program(GLcontext *ctx, struct r300_fragment_prog rewriteFog(&compiler, fp); r3xx_compile_fragment_program(&compiler); + + if (compiler.is_r500) { + /* We need to support the non-KMS DRM interface, which + * artificially limits the number of instructions and + * constants which are available to us. + * + * See also the comment in r300_context.c where we + * set the MAX_NATIVE_xxx values. + */ + if (fp->code.code.r500.inst_end >= 255 || fp->code.constants.Count > 255) + rc_error(&compiler.Base, "Program is too big (upgrade to r300g to avoid this limitation).\n"); + } + fp->error = compiler.Base.Error; fp->InputsRead = compiler.Base.Program.InputsRead; |