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st/mesa: remove dead code from mesa_to_tgsi

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These aren't part of ARB_fragment_program.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
This commit is contained in:
Marek Olšák 2016-01-02 19:58:26 +01:00
parent cb513485a0
commit 91e8f2b0a5
1 changed files with 0 additions and 51 deletions
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51
src/mesa/state_tracker/st_mesa_to_tgsi.c
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@ -475,24 +475,6 @@ static void emit_swz( struct st_translate *t,
}
/**
* Negate the value of DDY to match GL semantics where (0,0) is the
* lower-left corner of the window.
* Note that the GL_ARB_fragment_coord_conventions extension will
* effect this someday.
*/
static void emit_ddy( struct st_translate *t,
struct ureg_dst dst,
const struct prog_src_register *SrcReg )
{
struct ureg_program *ureg = t->ureg;
struct ureg_src src = translate_src( t, SrcReg );
src = ureg_negate( src );
ureg_DDY( ureg, dst, src );
}
static unsigned
translate_opcode( unsigned op )
{
@ -714,10 +696,6 @@ compile_instruction(
*/
ureg_MOV( ureg, dst[0], ureg_imm1f(ureg, 0.5) );
break;
case OPCODE_DDY:
emit_ddy( t, dst[0], &inst->SrcReg[0] );
break;
case OPCODE_RSQ:
ureg_RSQ( ureg, dst[0], ureg_abs(src[0]) );
@ -925,31 +903,6 @@ emit_wpos(struct st_context *st,
}
/**
* OpenGL's fragment gl_FrontFace input is 1 for front-facing, 0 for back.
* TGSI uses +1 for front, -1 for back.
* This function converts the TGSI value to the GL value. Simply clamping/
* saturating the value to [0,1] does the job.
*/
static void
emit_face_var( struct st_translate *t,
const struct gl_program *program )
{
struct ureg_program *ureg = t->ureg;
struct ureg_dst face_temp = ureg_DECL_temporary( ureg );
struct ureg_src face_input = t->inputs[t->inputMapping[VARYING_SLOT_FACE]];
/* MOV_SAT face_temp, input[face]
*/
face_temp = ureg_saturate( face_temp );
ureg_MOV( ureg, face_temp, face_input );
/* Use face_temp as face input from here on:
*/
t->inputs[t->inputMapping[VARYING_SLOT_FACE]] = ureg_src(face_temp);
}
/**
* Translate Mesa program to TGSI format.
* \param program the program to translate
@ -1020,10 +973,6 @@ st_translate_mesa_program(
emit_wpos(st_context(ctx), t, program, ureg);
}
if (program->InputsRead & VARYING_BIT_FACE) {
emit_face_var( t, program );
}
/*
* Declare output attributes.
*/