diff options
| author | Keith Whitwell <keithw@vmware.com> | 2010-05-14 13:04:42 +0100 |
|---|---|---|
| committer | Keith Whitwell <keithw@vmware.com> | 2010-05-14 13:04:42 +0100 |
| commit | 0bd1cbcd0d28dbadfb0c3e1f8b048a18b56bc72c (patch) | |
| tree | b5e83bf73e7fa711579bc3a2e2d0578d3b1c9e11 /src/gallium/drivers/svga/svga_tgsi_insn.c | |
| parent | fc4d1b9ba965f26c504e6f5fea12e2bac2d71d72 (diff) | |
gallium: convert rasterizer state to use gl-style front/back concepts
Use front/back instead of cw/ccw throughout.
Also, use offset_point/line/fill instead of offset_cw/ccw.
Brings gallium representation of this state into line with its main
user, and also what turns out to be the most common hardware
representation.
This fixes a long-standing bias in the interface towards the
architecture of the software rasterizer.
Diffstat (limited to 'src/gallium/drivers/svga/svga_tgsi_insn.c')
| -rw-r--r-- | src/gallium/drivers/svga/svga_tgsi_insn.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/gallium/drivers/svga/svga_tgsi_insn.c b/src/gallium/drivers/svga/svga_tgsi_insn.c index 7d7024c4a7..67e1f22a70 100644 --- a/src/gallium/drivers/svga/svga_tgsi_insn.c +++ b/src/gallium/drivers/svga/svga_tgsi_insn.c @@ -2588,10 +2588,10 @@ static boolean emit_light_twoside( struct svga_shader_emitter *emit ) if_token = inst_token( SVGA3DOP_IFC ); - if (emit->key.fkey.front_cw) - if_token.control = SVGA3DOPCOMP_GT; - else + if (emit->key.fkey.front_ccw) if_token.control = SVGA3DOPCOMP_LT; + else + if_token.control = SVGA3DOPCOMP_GT; zero = scalar(zero, TGSI_SWIZZLE_X); @@ -2639,12 +2639,12 @@ static boolean emit_frontface( struct svga_shader_emitter *emit ) temp = dst_register( SVGA3DREG_TEMP, emit->nr_hw_temp++ ); - if (emit->key.fkey.front_cw) { - pass = scalar( zero, TGSI_SWIZZLE_W ); - fail = scalar( zero, TGSI_SWIZZLE_X ); - } else { + if (emit->key.fkey.front_ccw) { pass = scalar( zero, TGSI_SWIZZLE_X ); fail = scalar( zero, TGSI_SWIZZLE_W ); + } else { + pass = scalar( zero, TGSI_SWIZZLE_W ); + fail = scalar( zero, TGSI_SWIZZLE_X ); } if (!emit_conditional(emit, PIPE_FUNC_GREATER, |