Module: Mesa Branch: master Commit: 4fb0c92c6986cf4e88296bab8837320210f1794f URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4fb0c92c6986cf4e88296bab8837320210f1794f
Author: Eric Anholt <[email protected]> Date: Sat Oct 2 23:44:29 2010 -0700 i965: Add support for EXT_texture_swizzle to the new FS backend. --- 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 dd2af2b..5ebf906 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 _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
