diff options
| author | Brian Paul <[email protected]> | 2012-05-30 16:47:34 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2012-05-31 12:54:04 -0600 |
| commit | 8009fca501a021cbaf9b25e01ff3a7793cc2c6cb (patch) | |
| tree | 237502836c7d648d8a6a39fa58b9547dbf8b8f52 /src/gallium/drivers | |
| parent | dff36e900c645401b26c9a44106459e96ee7a24d (diff) | |
svga: fix saturated TEX instructions
TEX instructions can't do saturation. Do the TEX into a temp reg w/out
saturation, then do a MOV_SAT.
Reviewed-by: Jakob Bornecrantz <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/svga/svga_tgsi_insn.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/gallium/drivers/svga/svga_tgsi_insn.c b/src/gallium/drivers/svga/svga_tgsi_insn.c index a68912608bc..64dfa557539 100644 --- a/src/gallium/drivers/svga/svga_tgsi_insn.c +++ b/src/gallium/drivers/svga/svga_tgsi_insn.c @@ -1628,10 +1628,12 @@ static boolean emit_tex(struct svga_shader_emitter *emit, emit->key.fkey.tex[unit].swizzle_b != PIPE_SWIZZLE_BLUE || emit->key.fkey.tex[unit].swizzle_a != PIPE_SWIZZLE_ALPHA); - /* If doing compare processing or tex swizzle, need to put fetched color into - * a temporary so it can be used as a source later on. + boolean saturate = insn->Instruction.Saturate != TGSI_SAT_NONE; + + /* If doing compare processing or tex swizzle or saturation, we need to put + * the fetched color into a temporary so it can be used as a source later on. */ - if (compare || swizzle) { + if (compare || swizzle || saturate) { tex_result = get_temp( emit ); } else { @@ -1658,7 +1660,7 @@ static boolean emit_tex(struct svga_shader_emitter *emit, if (compare) { SVGA3dShaderDestToken dst2; - if (swizzle) + if (swizzle || saturate) dst2 = tex_result; else dst2 = dst; @@ -1710,8 +1712,13 @@ static boolean emit_tex(struct svga_shader_emitter *emit, } } - if (swizzle) { - /* swizzle from tex_result to dst */ + if (saturate && !swizzle) { + /* MOV_SAT real_dst, dst */ + if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ), dst, src(tex_result) )) + return FALSE; + } + else if (swizzle) { + /* swizzle from tex_result to dst (handles saturation too, if any) */ emit_tex_swizzle(emit, dst, src(tex_result), emit->key.fkey.tex[unit].swizzle_r, |