diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_tgsi_insn.c')
| -rw-r--r-- | src/gallium/drivers/svga/svga_tgsi_insn.c | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/src/gallium/drivers/svga/svga_tgsi_insn.c b/src/gallium/drivers/svga/svga_tgsi_insn.c index ea409b7e165..b5424dacf7d 100644 --- a/src/gallium/drivers/svga/svga_tgsi_insn.c +++ b/src/gallium/drivers/svga/svga_tgsi_insn.c @@ -1011,10 +1011,10 @@ static boolean emit_kilp(struct svga_shader_emitter *emit, { SVGA3dShaderInstToken inst; SVGA3dShaderDestToken temp; - struct src_register one = get_zero_immediate( emit ); + struct src_register one = scalar( get_zero_immediate( emit ), + TGSI_SWIZZLE_W ); inst = inst_token( SVGA3DOP_TEXKILL ); - one = scalar( one, TGSI_SWIZZLE_W ); /* texkill doesn't allow negation on the operand so lets move * negation of {1} to a temp register */ @@ -2254,11 +2254,28 @@ static boolean emit_ps_postamble( struct svga_shader_emitter *emit ) for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { if (SVGA3dShaderGetRegType(emit->true_col[i].value) != 0) { - if (!submit_op1( emit, - inst_token(SVGA3DOP_MOV), - emit->true_col[i], - src(emit->temp_col[i]) )) - return FALSE; + /* Potentially override output colors with white for XOR + * logicop workaround. + */ + if (emit->unit == PIPE_SHADER_FRAGMENT && + emit->key.fkey.white_fragments) { + + struct src_register one = scalar( get_zero_immediate( emit ), + TGSI_SWIZZLE_W ); + + if (!submit_op1( emit, + inst_token(SVGA3DOP_MOV), + emit->true_col[i], + one )) + return FALSE; + } + else { + if (!submit_op1( emit, + inst_token(SVGA3DOP_MOV), + emit->true_col[i], + src(emit->temp_col[i]) )) + return FALSE; + } } } @@ -2467,6 +2484,9 @@ needs_to_create_zero( struct svga_shader_emitter *emit ) if (emit->key.fkey.light_twoside) return TRUE; + if (emit->key.fkey.white_fragments) + return TRUE; + if (emit->emit_frontface) return TRUE; |