diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/pipe/tgsi/exec/tgsi_exec.c | 214 |
1 files changed, 125 insertions, 89 deletions
diff --git a/src/mesa/pipe/tgsi/exec/tgsi_exec.c b/src/mesa/pipe/tgsi/exec/tgsi_exec.c index 3f170ffcfc..28211c9507 100644 --- a/src/mesa/pipe/tgsi/exec/tgsi_exec.c +++ b/src/mesa/pipe/tgsi/exec/tgsi_exec.c @@ -1194,7 +1194,7 @@ fetch_texel( struct tgsi_sampler *sampler, const union tgsi_exec_channel *s, const union tgsi_exec_channel *t, const union tgsi_exec_channel *p, - float lodbias, + float lodbias, /* XXX should be float[4] */ union tgsi_exec_channel *r, union tgsi_exec_channel *g, union tgsi_exec_channel *b, @@ -1213,6 +1213,124 @@ fetch_texel( struct tgsi_sampler *sampler, } } + +static void +exec_tex(struct tgsi_exec_machine *mach, + const struct tgsi_full_instruction *inst, + boolean biasLod) +{ + const uint unit = inst->FullSrcRegisters[1].SrcRegister.Index; + union tgsi_exec_channel r[8]; + uint chan_index; + float lodBias; + + switch (inst->InstructionExtTexture.Texture) { + case TGSI_TEXTURE_1D: + + FETCH(&r[0], 0, CHAN_X); + + switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) { + case TGSI_EXTSWIZZLE_W: + FETCH(&r[1], 0, CHAN_W); + micro_div( &r[0], &r[0], &r[1] ); + break; + + case TGSI_EXTSWIZZLE_ONE: + break; + + default: + assert (0); + } + + if (biasLod) { + FETCH(&r[1], 0, CHAN_W); + lodBias = r[1].f[0]; + } + else + lodBias = 0.0; + + fetch_texel(&mach->Samplers[unit], + &r[0], NULL, NULL, lodBias, /* S, T, P, BIAS */ + &r[0], &r[1], &r[2], &r[3]); /* R, G, B, A */ + break; + + case TGSI_TEXTURE_2D: + case TGSI_TEXTURE_RECT: + + FETCH(&r[0], 0, CHAN_X); + FETCH(&r[1], 0, CHAN_Y); + + switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) { + case TGSI_EXTSWIZZLE_W: + FETCH(&r[2], 0, CHAN_W); + micro_div( &r[0], &r[0], &r[2] ); + micro_div( &r[1], &r[1], &r[2] ); + break; + + case TGSI_EXTSWIZZLE_ONE: + break; + + default: + assert (0); + } + + if (biasLod) { + FETCH(&r[1], 0, CHAN_W); + lodBias = r[1].f[0]; + } + else + lodBias = 0.0; + + fetch_texel(&mach->Samplers[unit], + &r[0], &r[1], NULL, lodBias, + &r[0], &r[1], &r[2], &r[3]); + break; + + case TGSI_TEXTURE_3D: + case TGSI_TEXTURE_CUBE: + + FETCH(&r[0], 0, CHAN_X); + FETCH(&r[1], 0, CHAN_Y); + FETCH(&r[2], 0, CHAN_Z); + + switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) { + case TGSI_EXTSWIZZLE_W: + FETCH(&r[3], 0, CHAN_W); + micro_div( &r[0], &r[0], &r[3] ); + micro_div( &r[1], &r[1], &r[3] ); + micro_div( &r[2], &r[2], &r[3] ); + break; + + case TGSI_EXTSWIZZLE_ONE: + break; + + default: + assert (0); + } + + if (biasLod) { + FETCH(&r[1], 0, CHAN_W); + lodBias = r[1].f[0]; + } + else + lodBias = 0.0; + + fetch_texel(&mach->Samplers[unit], + &r[0], &r[1], &r[2], lodBias, + &r[0], &r[1], &r[2], &r[3]); + break; + + default: + assert (0); + } + + FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) { + STORE( &r[chan_index], 0, chan_index ); + } +} + + + static void constant_interpolation( struct tgsi_exec_machine *mach, @@ -1880,91 +1998,13 @@ exec_instruction( break; case TGSI_OPCODE_TEX: - { - const GLuint unit = inst->FullSrcRegisters[1].SrcRegister.Index; - switch (inst->InstructionExtTexture.Texture) { - case TGSI_TEXTURE_1D: - - FETCH(&r[0], 0, CHAN_X); - - switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) { - case TGSI_EXTSWIZZLE_W: - FETCH(&r[1], 0, CHAN_W); - micro_div( &r[0], &r[0], &r[1] ); - break; - - case TGSI_EXTSWIZZLE_ONE: - break; - - default: - assert (0); - } - - fetch_texel(&mach->Samplers[unit], - &r[0], NULL, NULL, 0.0, - &r[0], &r[1], &r[2], &r[3]); - break; - - case TGSI_TEXTURE_2D: - case TGSI_TEXTURE_RECT: - - FETCH(&r[0], 0, CHAN_X); - FETCH(&r[1], 0, CHAN_Y); - - switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) { - case TGSI_EXTSWIZZLE_W: - FETCH(&r[2], 0, CHAN_W); - micro_div( &r[0], &r[0], &r[2] ); - micro_div( &r[1], &r[1], &r[2] ); - break; - - case TGSI_EXTSWIZZLE_ONE: - break; - - default: - assert (0); - } - - fetch_texel(&mach->Samplers[unit], - &r[0], &r[1], NULL, 0.0, - &r[0], &r[1], &r[2], &r[3]); - break; - - case TGSI_TEXTURE_3D: - case TGSI_TEXTURE_CUBE: - - FETCH(&r[0], 0, CHAN_X); - FETCH(&r[1], 0, CHAN_Y); - FETCH(&r[2], 0, CHAN_Z); - - switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) { - case TGSI_EXTSWIZZLE_W: - FETCH(&r[3], 0, CHAN_W); - micro_div( &r[0], &r[0], &r[3] ); - micro_div( &r[1], &r[1], &r[3] ); - micro_div( &r[2], &r[2], &r[3] ); - break; - - case TGSI_EXTSWIZZLE_ONE: - break; - - default: - assert (0); - } - - fetch_texel(&mach->Samplers[unit], - &r[0], &r[1], &r[2], 0.0, - &r[0], &r[1], &r[2], &r[3]); - break; - - default: - assert (0); - } + /* src arg0 is the texcoord */ + exec_tex(mach, inst, FALSE); + break; - FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) { - STORE( &r[chan_index], 0, chan_index ); - } - } + case TGSI_OPCODE_TXB: + /* Texture lookup with lod bias (src0.w) */ + exec_tex(mach, inst, TRUE); break; case TGSI_OPCODE_TXD: @@ -2076,10 +2116,6 @@ exec_instruction( } break; - case TGSI_OPCODE_TXB: - assert (0); - break; - case TGSI_OPCODE_NRM: assert (0); break; |