diff options
| author | Brian <brian.paul@tungstengraphics.com> | 2007-10-26 19:19:09 -0600 |
|---|---|---|
| committer | Brian <brian.paul@tungstengraphics.com> | 2007-10-26 19:19:51 -0600 |
| commit | 8fed2466e4056668a76a87cf935b5fbff8ae15ca (patch) | |
| tree | 81345e5b5ee66dc2dd299f5b9ce29314f2e52735 /src/mesa/shader/prog_instruction.c | |
| parent | 789d248558061fe4d65f664d6770a12b90fa2e34 (diff) | |
Re-implement GLSL texture sampler variables.
GLSL sampler variables indicate which texture unit to use for TEX instructions.
Previously, this was baked into the fragment/vertex program and couldn't be
readily changed once set.
Now, SamplerUnits[] array indicates which texture unit is to be used for
each sampler variable. These values are set with glUniform1i().
This is extra state that must be passed to the fragment/vertex program
executor at runtime.
Diffstat (limited to 'src/mesa/shader/prog_instruction.c')
| -rw-r--r-- | src/mesa/shader/prog_instruction.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mesa/shader/prog_instruction.c b/src/mesa/shader/prog_instruction.c index c84c76fd5b..066129037a 100644 --- a/src/mesa/shader/prog_instruction.c +++ b/src/mesa/shader/prog_instruction.c @@ -246,6 +246,17 @@ _mesa_num_inst_dst_regs(gl_inst_opcode opcode) } +GLboolean +_mesa_is_tex_instruction(gl_inst_opcode opcode) +{ + return (opcode == OPCODE_TEX || + opcode == OPCODE_TXB || + opcode == OPCODE_TXD || + opcode == OPCODE_TXL || + opcode == OPCODE_TXP); +} + + /** * Return string name for given program opcode. */ |