diff options
author | Eric Anholt <eric@anholt.net> | 2010-10-02 23:44:29 -0700 |
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committer | Eric Anholt <eric@anholt.net> | 2010-10-02 23:44:44 -0700 |
commit | 4fb0c92c6986cf4e88296bab8837320210f1794f (patch) | |
tree | bab8c9b4462f796c6ab0c1268cfd6aea24b673f2 /src/mesa/drivers/dri/i965/brw_fs.cpp | |
parent | 8f7177e0de06877ae717250ccaa3ac292340b7be (diff) |
i965: Add support for EXT_texture_swizzle to the new FS backend.
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs.cpp')
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index dd2af2bd1d..5ebf9063df 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -1437,6 +1437,27 @@ fs_visitor::visit(ir_texture *ir) if (ir->shadow_comparitor) inst->shadow_compare = true; + + if (c->key.tex_swizzles[inst->sampler] != SWIZZLE_NOOP) { + fs_reg swizzle_dst = fs_reg(this, glsl_type::vec4_type); + + for (int i = 0; i < 4; i++) { + int swiz = GET_SWZ(c->key.tex_swizzles[inst->sampler], i); + fs_reg l = swizzle_dst; + l.reg_offset += i; + + if (swiz == SWIZZLE_ZERO) { + emit(fs_inst(BRW_OPCODE_MOV, l, fs_reg(0.0f))); + } else if (swiz == SWIZZLE_ONE) { + emit(fs_inst(BRW_OPCODE_MOV, l, fs_reg(1.0f))); + } else { + fs_reg r = dst; + r.reg_offset += GET_SWZ(c->key.tex_swizzles[inst->sampler], i); + emit(fs_inst(BRW_OPCODE_MOV, l, r)); + } + } + this->result = swizzle_dst; + } } void |