diff options
Diffstat (limited to 'src/gallium/auxiliary/tgsi/exec/tgsi_exec.c')
-rw-r--r-- | src/gallium/auxiliary/tgsi/exec/tgsi_exec.c | 65 |
1 files changed, 37 insertions, 28 deletions
diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c b/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c index d55f907c0d..826b432f09 100644 --- a/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c @@ -88,6 +88,10 @@ #define TEMP_OUTPUT_C TGSI_EXEC_TEMP_OUTPUT_C #define TEMP_PRIMITIVE_I TGSI_EXEC_TEMP_PRIMITIVE_I #define TEMP_PRIMITIVE_C TGSI_EXEC_TEMP_PRIMITIVE_C +#define TEMP_3_I TGSI_EXEC_TEMP_THREE_I +#define TEMP_3_C TGSI_EXEC_TEMP_THREE_C +#define TEMP_HALF_I TGSI_EXEC_TEMP_HALF_I +#define TEMP_HALF_C TGSI_EXEC_TEMP_HALF_C #define TEMP_R0 TGSI_EXEC_TEMP_R0 #define FOR_EACH_CHANNEL(CHAN)\ @@ -262,6 +266,8 @@ tgsi_exec_machine_init( mach->Temps[TEMP_2_I].xyzw[TEMP_2_C].f[i] = 2.0f; mach->Temps[TEMP_128_I].xyzw[TEMP_128_C].f[i] = 128.0f; mach->Temps[TEMP_M128_I].xyzw[TEMP_M128_C].f[i] = -128.0f; + mach->Temps[TEMP_3_I].xyzw[TEMP_3_C].f[i] = 3.0f; + mach->Temps[TEMP_HALF_I].xyzw[TEMP_HALF_C].f[i] = 0.5f; } } @@ -1530,41 +1536,44 @@ exec_instruction( break; case TGSI_OPCODE_EXP: - debug_printf("TGSI: EXP opcode not implemented\n"); - /* from ARB_v_p: - tmp = ScalarLoad(op0); - result.x = 2^floor(tmp); - result.y = tmp - floor(tmp); - result.z = RoughApprox2ToX(tmp); - result.w = 1.0; - */ -#if 0 - /* something like this: */ FETCH( &r[0], 0, CHAN_X ); - micro_exp2( &r[0], &r[0] ); - FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) { - STORE( &r[0], 0, chan_index ); + micro_flr( &r[1], &r[0] ); /* r1 = floor(r0) */ + if (IS_CHANNEL_ENABLED( *inst, CHAN_X )) { + micro_exp2( &r[2], &r[1] ); /* r2 = 2 ^ r1 */ + STORE( &r[2], 0, CHAN_X ); /* store r2 */ + } + if (IS_CHANNEL_ENABLED( *inst, CHAN_Y )) { + micro_sub( &r[2], &r[0], &r[1] ); /* r2 = r0 - r1 */ + STORE( &r[2], 0, CHAN_Y ); /* store r2 */ + } + if (IS_CHANNEL_ENABLED( *inst, CHAN_Z )) { + micro_exp2( &r[2], &r[0] ); /* r2 = 2 ^ r0 */ + STORE( &r[2], 0, CHAN_Z ); /* store r2 */ + } + if (IS_CHANNEL_ENABLED( *inst, CHAN_W )) { + STORE( &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C], 0, CHAN_W ); } -#endif break; case TGSI_OPCODE_LOG: - debug_printf("TGSI: LOG opcode not implemented\n"); - /* from ARB_v_p: - tmp = fabs(ScalarLoad(op0)); - result.x = floor(log2(tmp)); - result.y = tmp / 2^(floor(log2(tmp))); - result.z = RoughApproxLog2(tmp); - result.w = 1.0; - */ -#if 0 - /* something like this: */ FETCH( &r[0], 0, CHAN_X ); - micro_lg2( &r[0], &r[0] ); - FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) { - STORE( &r[0], 0, chan_index ); + micro_abs( &r[2], &r[0] ); /* r2 = abs(r0) */ + micro_lg2( &r[1], &r[2] ); /* r1 = lg2(r2) */ + micro_flr( &r[0], &r[1] ); /* r0 = floor(r1) */ + if (IS_CHANNEL_ENABLED( *inst, CHAN_X )) { + STORE( &r[0], 0, CHAN_X ); + } + if (IS_CHANNEL_ENABLED( *inst, CHAN_Y )) { + micro_exp2( &r[0], &r[0] ); /* r0 = 2 ^ r0 */ + micro_div( &r[0], &r[2], &r[0] ); /* r0 = r2 / r0 */ + STORE( &r[0], 0, CHAN_Y ); + } + if (IS_CHANNEL_ENABLED( *inst, CHAN_Z )) { + STORE( &r[1], 0, CHAN_Z ); + } + if (IS_CHANNEL_ENABLED( *inst, CHAN_W )) { + STORE( &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C], 0, CHAN_W ); } -#endif break; case TGSI_OPCODE_MUL: |