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Added new opcodes for ARB_fragment_program, like ABS, CMP, TXB, etc.

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This commit is contained in:
Brian Paul
2003-09-04 15:18:22 +00:00
parent e082348a4b
commit 9c9c2cd725
2 changed files with 89 additions and 21 deletions
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62
src/mesa/swrast/s_nvfragprog.c
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@@ -595,6 +595,17 @@ execute_program( GLcontext *ctx,
}
switch (inst->Opcode) {
case FP_OPCODE_ABS:
{
GLfloat a[4], result[4];
fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a );
result[0] = FABSF(a[0]);
result[1] = FABSF(a[1]);
result[2] = FABSF(a[2]);
result[3] = FABSF(a[3]);
store_vector4( inst, machine, result );
}
break;
case FP_OPCODE_ADD:
{
GLfloat a[4], b[4], result[4];
@@ -607,6 +618,19 @@ execute_program( GLcontext *ctx,
store_vector4( inst, machine, result );
}
break;
case FP_OPCODE_CMP:
{
GLfloat a[4], b[4], c[4], result[4];
fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a );
fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b );
fetch_vector4( ctx, &inst->SrcReg[2], machine, program, c );
result[0] = a[0] < 0.0F ? b[0] : c[0];
result[1] = a[1] < 0.0F ? b[1] : c[1];
result[2] = a[2] < 0.0F ? b[2] : c[2];
result[3] = a[3] < 0.0F ? b[3] : c[3];
store_vector4( inst, machine, result );
}
break;
case FP_OPCODE_COS:
{
GLfloat a[4], result[4];
@@ -682,6 +706,16 @@ execute_program( GLcontext *ctx,
store_vector4( inst, machine, result );
}
break;
case FP_OPCODE_DPH:
{
GLfloat a[4], b[4], result[4];
fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a );
fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b );
result[0] = result[1] = result[2] = result[3] =
a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + b[3];
store_vector4( inst, machine, result );
}
break;
case FP_OPCODE_DST: /* Distance vector */
{
GLfloat a[4], b[4], result[4];
@@ -952,6 +986,17 @@ execute_program( GLcontext *ctx,
#endif
}
break;
case FP_OPCODE_SCS: /* sine and cos */
{
GLfloat a[4], result[4];
fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a );
result[0] = cos(a[0]);
result[1] = sin(a[0]);
result[2] = 0.0; /* undefined! */
result[3] = 0.0; /* undefined! */
store_vector4( inst, machine, result );
}
break;
case FP_OPCODE_SEQ: /* set on equal */
{
GLfloat a[4], b[4], result[4];
@@ -1057,6 +1102,11 @@ execute_program( GLcontext *ctx,
store_vector4( inst, machine, result );
}
break;
case FP_OPCODE_SWZ:
{
/* XXX to do: extended swizzle */
}
break;
case FP_OPCODE_TEX:
/* Texel lookup */
{
@@ -1069,6 +1119,18 @@ execute_program( GLcontext *ctx,
store_vector4( inst, machine, color );
}
break;
case FP_OPCODE_TXB:
/* Texel lookup with LOD bias */
{
GLfloat texcoord[4], color[4];
fetch_vector4( ctx, &inst->SrcReg[0], machine, program, texcoord );
/* XXX: apply bias from texcoord[3]!!! */
fetch_texel( ctx, texcoord,
span->array->lambda[inst->TexSrcUnit][column],
inst->TexSrcUnit, color );
store_vector4( inst, machine, color );
}
break;
case FP_OPCODE_TXD:
/* Texture lookup w/ partial derivatives for LOD */
{