diff options
Diffstat (limited to 'src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c')
| -rwxr-xr-x | src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c | 291 |
1 files changed, 183 insertions, 108 deletions
diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c index 4e80597b3f..c37e201b2b 100755 --- a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c +++ b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c @@ -225,6 +225,15 @@ get_coef_base( void ) return get_output_base(); } +static struct x86_reg +get_immediate_base( void ) +{ + return x86_make_reg( + file_REG32, + reg_DI ); +} + + /** * Data access helpers. */ @@ -239,6 +248,16 @@ get_argument( } static struct x86_reg +get_immediate( + unsigned vec, + unsigned chan ) +{ + return x86_make_disp( + get_immediate_base(), + (vec * 4 + chan) * 4 ); +} + +static struct x86_reg get_const( unsigned vec, unsigned chan ) @@ -548,6 +567,12 @@ emit_xorps( * Data fetch helpers. */ +/** + * Copy a shader constant to xmm register + * \param xmm the destination xmm register + * \param vec the src const buffer index + * \param chan src channel to fetch (X, Y, Z or W) + */ static void emit_const( struct x86_function *func, @@ -567,6 +592,31 @@ emit_const( } static void +emit_immediate( + struct x86_function *func, + unsigned xmm, + unsigned vec, + unsigned chan ) +{ + emit_movss( + func, + make_xmm( xmm ), + get_immediate( vec, chan ) ); + emit_shufps( + func, + make_xmm( xmm ), + make_xmm( xmm ), + SHUF( 0, 0, 0, 0 ) ); +} + + +/** + * Copy a shader input to xmm register + * \param xmm the destination xmm register + * \param vec the src input attrib + * \param chan src channel to fetch (X, Y, Z or W) + */ +static void emit_inputf( struct x86_function *func, unsigned xmm, @@ -579,6 +629,12 @@ emit_inputf( get_input( vec, chan ) ); } +/** + * Store an xmm register to a shader output + * \param xmm the source xmm register + * \param vec the dest output attrib + * \param chan src dest channel to store (X, Y, Z or W) + */ static void emit_output( struct x86_function *func, @@ -592,6 +648,12 @@ emit_output( make_xmm( xmm ) ); } +/** + * Copy a shader temporary to xmm register + * \param xmm the destination xmm register + * \param vec the src temp register + * \param chan src channel to fetch (X, Y, Z or W) + */ static void emit_tempf( struct x86_function *func, @@ -605,6 +667,13 @@ emit_tempf( get_temp( vec, chan ) ); } +/** + * Load an xmm register with an input attrib coefficient (a0, dadx or dady) + * \param xmm the destination xmm register + * \param vec the src input/attribute coefficient index + * \param chan src channel to fetch (X, Y, Z or W) + * \param member 0=a0, 1=dadx, 2=dady + */ static void emit_coef( struct x86_function *func, @@ -1160,6 +1229,14 @@ emit_fetch( swizzle ); break; + case TGSI_FILE_IMMEDIATE: + emit_immediate( + func, + xmm, + reg->SrcRegister.Index, + swizzle ); + break; + case TGSI_FILE_INPUT: emit_inputf( func, @@ -2020,7 +2097,7 @@ emit_instruction( STORE( func, *inst, 0, 0, CHAN_X ); } IF_IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) { - FETCH( func, *inst, 0, 0, CHAN_Y ); + FETCH( func, *inst, 0, 0, CHAN_X ); emit_sin( func, 0 ); STORE( func, *inst, 0, 0, CHAN_Y ); } @@ -2236,135 +2313,116 @@ emit_declaration( } } -unsigned -tgsi_emit_sse2( - struct tgsi_token *tokens, - struct x86_function *func ) -{ - struct tgsi_parse_context parse; - unsigned ok = 1; - - DUMP_START(); - - func->csr = func->store; - - emit_mov( - func, - get_input_base(), - get_argument( 0 ) ); - emit_mov( - func, - get_output_base(), - get_argument( 1 ) ); - emit_mov( - func, - get_const_base(), - get_argument( 2 ) ); - emit_mov( - func, - get_temp_base(), - get_argument( 3 ) ); - - tgsi_parse_init( &parse, tokens ); - - while( !tgsi_parse_end_of_tokens( &parse ) && ok ) { - tgsi_parse_token( &parse ); - - switch( parse.FullToken.Token.Type ) { - case TGSI_TOKEN_TYPE_DECLARATION: - break; - - case TGSI_TOKEN_TYPE_INSTRUCTION: - ok = emit_instruction( - func, - &parse.FullToken.FullInstruction ); - - if (!ok) { - debug_printf("failed to translate tgsi opcode %d to SSE\n", - parse.FullToken.FullInstruction.Instruction.Opcode ); - } - break; - - case TGSI_TOKEN_TYPE_IMMEDIATE: - /* XXX implement this */ - ok = 0; - debug_printf("failed to emit immediate value to SSE\n"); - break; - - default: - assert( 0 ); - ok = 0; - break; - } - } - - tgsi_parse_free( &parse ); - - DUMP_END(); - - return ok; -} /** - * Fragment shaders are responsible for interpolating shader inputs. Because on - * x86 we have only 4 GP registers, and here we have 5 shader arguments (input, - * output, const, temp and coef), the code is split into two phases -- - * DECLARATION and INSTRUCTION phase. - * GP register holding the output argument is aliased with the coeff argument, - * as outputs are not needed in the DECLARATION phase. + * Translate a TGSI vertex/fragment shader to SSE2 code. + * Slightly different things are done for vertex vs. fragment shaders. + * + * Note that fragment shaders are responsible for interpolating shader + * inputs. Because on x86 we have only 4 GP registers, and here we + * have 5 shader arguments (input, output, const, temp and coef), the + * code is split into two phases -- DECLARATION and INSTRUCTION phase. + * GP register holding the output argument is aliased with the coeff + * argument, as outputs are not needed in the DECLARATION phase. + * + * \param tokens the TGSI input shader + * \param func the output SSE code/function + * \param immediates buffer to place immediates, later passed to SSE func + * \param return 1 for success, 0 if translation failed */ unsigned -tgsi_emit_sse2_fs( +tgsi_emit_sse2( struct tgsi_token *tokens, - struct x86_function *func ) + struct x86_function *func, + float (*immediates)[4]) { struct tgsi_parse_context parse; boolean instruction_phase = FALSE; unsigned ok = 1; + uint num_immediates = 0; DUMP_START(); func->csr = func->store; - /* DECLARATION phase, do not load output argument. */ - emit_mov( - func, - get_input_base(), - get_argument( 0 ) ); - emit_mov( - func, - get_const_base(), - get_argument( 2 ) ); - emit_mov( - func, - get_temp_base(), - get_argument( 3 ) ); - emit_mov( - func, - get_coef_base(), - get_argument( 4 ) ); - tgsi_parse_init( &parse, tokens ); + /* + * Different function args for vertex/fragment shaders: + */ + if (parse.FullHeader.Processor.Processor == TGSI_PROCESSOR_FRAGMENT) { + /* DECLARATION phase, do not load output argument. */ + emit_mov( + func, + get_input_base(), + get_argument( 0 ) ); + /* skipping outputs argument here */ + emit_mov( + func, + get_const_base(), + get_argument( 2 ) ); + emit_mov( + func, + get_temp_base(), + get_argument( 3 ) ); + emit_mov( + func, + get_coef_base(), + get_argument( 4 ) ); + emit_mov( + func, + get_immediate_base(), + get_argument( 5 ) ); + } + else { + assert(parse.FullHeader.Processor.Processor == TGSI_PROCESSOR_VERTEX); + + emit_mov( + func, + get_input_base(), + get_argument( 0 ) ); + emit_mov( + func, + get_output_base(), + get_argument( 1 ) ); + emit_mov( + func, + get_const_base(), + get_argument( 2 ) ); + emit_mov( + func, + get_temp_base(), + get_argument( 3 ) ); + emit_mov( + func, + get_immediate_base(), + get_argument( 4 ) ); + } + while( !tgsi_parse_end_of_tokens( &parse ) && ok ) { tgsi_parse_token( &parse ); switch( parse.FullToken.Token.Type ) { case TGSI_TOKEN_TYPE_DECLARATION: - emit_declaration( - func, - &parse.FullToken.FullDeclaration ); + if (parse.FullHeader.Processor.Processor == TGSI_PROCESSOR_FRAGMENT) { + emit_declaration( + func, + &parse.FullToken.FullDeclaration ); + } break; case TGSI_TOKEN_TYPE_INSTRUCTION: - if( !instruction_phase ) { - /* INSTRUCTION phase, overwrite coeff with output. */ - instruction_phase = TRUE; - emit_mov( - func, - get_output_base(), - get_argument( 1 ) ); + if (parse.FullHeader.Processor.Processor == TGSI_PROCESSOR_FRAGMENT) { + if( !instruction_phase ) { + /* INSTRUCTION phase, overwrite coeff with output. */ + instruction_phase = TRUE; + emit_mov( + func, + get_output_base(), + get_argument( 1 ) ); + } } + ok = emit_instruction( func, &parse.FullToken.FullInstruction ); @@ -2376,9 +2434,26 @@ tgsi_emit_sse2_fs( break; case TGSI_TOKEN_TYPE_IMMEDIATE: - /* XXX implement this */ - ok = 0; - debug_printf("failed to emit immediate value to SSE\n"); + /* simply copy the immediate values into the next immediates[] slot */ + { + const uint size = parse.FullToken.FullImmediate.Immediate.Size - 1; + uint i; + assert(size <= 4); + assert(num_immediates < TGSI_EXEC_NUM_IMMEDIATES); + for( i = 0; i < size; i++ ) { + immediates[num_immediates][i] = + parse.FullToken.FullImmediate.u.ImmediateFloat32[i].Float; + } +#if 0 + debug_printf("SSE FS immediate[%d] = %f %f %f %f\n", + num_immediates, + immediates[num_immediates][0], + immediates[num_immediates][1], + immediates[num_immediates][2], + immediates[num_immediates][3]); +#endif + num_immediates++; + } break; default: |