gallium: Generate SSE code to swizzle and unswizzle vs inputs and outputs.

Change SSE_SWIZZLES #define to 0 to disable it.

1 files changed, 140 insertions, 2 deletions

diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
index 9061e00b635..86ca16c246b 100755
--- a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
@@ -1788,7 +1788,6 @@ emit_instruction(
       break;
 
    case TGSI_OPCODE_RET:
-   case TGSI_OPCODE_END:
 #ifdef WIN32
       emit_retw( func, 16 );
 #else
@@ -1796,6 +1795,9 @@ emit_instruction(
 #endif
       break;
 
+   case TGSI_OPCODE_END:
+      break;
+
    case TGSI_OPCODE_SSG:
       return 0;
       break;
@@ -2027,6 +2029,127 @@ emit_declaration(
    }
 }
 
+static void aos_to_soa( struct x86_function *func, uint aos, uint soa, uint num, uint stride )
+{
+   struct x86_reg soa_input;
+   struct x86_reg aos_input;
+   struct x86_reg num_inputs;
+   struct x86_reg temp;
+   unsigned char *inner_loop;
+
+   soa_input = x86_make_reg( file_REG32, reg_AX );
+   aos_input = x86_make_reg( file_REG32, reg_BX );
+   num_inputs = x86_make_reg( file_REG32, reg_CX );
+   temp = x86_make_reg( file_REG32, reg_DX );
+
+   /* Save EBX */
+   x86_push( func, x86_make_reg( file_REG32, reg_BX ) );
+
+   x86_mov( func, soa_input, get_argument( soa + 1 ) );
+   x86_mov( func, aos_input, get_argument( aos + 1 ) );
+   x86_mov( func, num_inputs, get_argument( num + 1 ) );
+
+   inner_loop = x86_get_label( func );
+
+   x86_mov( func, temp, get_argument( stride + 1 ) );
+   x86_push( func, aos_input );
+   sse_movlps( func, make_xmm( 0 ), x86_make_disp( aos_input, 0 ) );
+   sse_movlps( func, make_xmm( 3 ), x86_make_disp( aos_input, 8 ) );
+   x86_add( func, aos_input, temp );
+   sse_movhps( func, make_xmm( 0 ), x86_make_disp( aos_input, 0 ) );
+   sse_movhps( func, make_xmm( 3 ), x86_make_disp( aos_input, 8 ) );
+   x86_add( func, aos_input, temp );
+   sse_movlps( func, make_xmm( 1 ), x86_make_disp( aos_input, 0 ) );
+   sse_movlps( func, make_xmm( 4 ), x86_make_disp( aos_input, 8 ) );
+   x86_add( func, aos_input, temp );
+   sse_movhps( func, make_xmm( 1 ), x86_make_disp( aos_input, 0 ) );
+   sse_movhps( func, make_xmm( 4 ), x86_make_disp( aos_input, 8 ) );
+   x86_pop( func, aos_input );
+
+   sse_movaps( func, make_xmm( 2 ), make_xmm( 0 ) );
+   sse_movaps( func, make_xmm( 5 ), make_xmm( 3 ) );
+   sse_shufps( func, make_xmm( 0 ), make_xmm( 1 ), 0x88 );
+   sse_shufps( func, make_xmm( 2 ), make_xmm( 1 ), 0xdd );
+   sse_shufps( func, make_xmm( 3 ), make_xmm( 4 ), 0x88 );
+   sse_shufps( func, make_xmm( 5 ), make_xmm( 4 ), 0xdd );
+
+   sse_movups( func, x86_make_disp( soa_input, 0 ), make_xmm( 0 ) );
+   sse_movups( func, x86_make_disp( soa_input, 16 ), make_xmm( 2 ) );
+   sse_movups( func, x86_make_disp( soa_input, 32 ), make_xmm( 3 ) );
+   sse_movups( func, x86_make_disp( soa_input, 48 ), make_xmm( 5 ) );
+
+   /* Advance to next input */
+   x86_mov_reg_imm( func, temp, 16 );
+   x86_add( func, aos_input, temp );
+   x86_mov_reg_imm( func, temp, 64 );
+   x86_add( func, soa_input, temp );
+   x86_dec( func, num_inputs );
+   x86_jcc( func, cc_NE, inner_loop );
+
+   /* Restore EBX */
+   x86_pop( func, x86_make_reg( file_REG32, reg_BX ) );
+}
+
+static void soa_to_aos( struct x86_function *func, uint aos, uint soa, uint num, uint stride )
+{
+   struct x86_reg soa_output;
+   struct x86_reg aos_output;
+   struct x86_reg num_outputs;
+   struct x86_reg temp;
+   unsigned char *inner_loop;
+
+   soa_output = x86_make_reg( file_REG32, reg_AX );
+   aos_output = x86_make_reg( file_REG32, reg_BX );
+   num_outputs = x86_make_reg( file_REG32, reg_CX );
+   temp = x86_make_reg( file_REG32, reg_DX );
+
+   /* Save EBX */
+   x86_push( func, x86_make_reg( file_REG32, reg_BX ) );
+
+   x86_mov( func, soa_output, get_argument( soa + 1 ) );
+   x86_mov( func, aos_output, get_argument( aos + 1 ) );
+   x86_mov( func, num_outputs, get_argument( num + 1 ) );
+
+   inner_loop = x86_get_label( func );
+
+   sse_movups( func, make_xmm( 0 ), x86_make_disp( soa_output, 0 ) );
+   sse_movups( func, make_xmm( 1 ), x86_make_disp( soa_output, 16 ) );
+   sse_movups( func, make_xmm( 3 ), x86_make_disp( soa_output, 32 ) );
+   sse_movups( func, make_xmm( 4 ), x86_make_disp( soa_output, 48 ) );
+
+   sse_movaps( func, make_xmm( 2 ), make_xmm( 0 ) );
+   sse_movaps( func, make_xmm( 5 ), make_xmm( 3 ) );
+   sse_unpcklps( func, make_xmm( 0 ), make_xmm( 1 ) );
+   sse_unpckhps( func, make_xmm( 2 ), make_xmm( 1 ) );
+   sse_unpcklps( func, make_xmm( 3 ), make_xmm( 4 ) );
+   sse_unpckhps( func, make_xmm( 5 ), make_xmm( 4 ) );
+
+   x86_mov( func, temp, get_argument( stride + 1 ) );
+   x86_push( func, aos_output );
+   sse_movlps( func, x86_make_disp( aos_output, 0 ), make_xmm( 0 ) );
+   sse_movlps( func, x86_make_disp( aos_output, 8 ), make_xmm( 3 ) );
+   x86_add( func, aos_output, temp );
+   sse_movhps( func, x86_make_disp( aos_output, 0 ), make_xmm( 0 ) );
+   sse_movhps( func, x86_make_disp( aos_output, 8 ), make_xmm( 3 ) );
+   x86_add( func, aos_output, temp );
+   sse_movlps( func, x86_make_disp( aos_output, 0 ), make_xmm( 2 ) );
+   sse_movlps( func, x86_make_disp( aos_output, 8 ), make_xmm( 5 ) );
+   x86_add( func, aos_output, temp );
+   sse_movhps( func, x86_make_disp( aos_output, 0 ), make_xmm( 2 ) );
+   sse_movhps( func, x86_make_disp( aos_output, 8 ), make_xmm( 5 ) );
+   x86_pop( func, aos_output );
+
+   /* Advance to next output */
+   x86_mov_reg_imm( func, temp, 16 );
+   x86_add( func, aos_output, temp );
+   x86_mov_reg_imm( func, temp, 64 );
+   x86_add( func, soa_output, temp );
+   x86_dec( func, num_outputs );
+   x86_jcc( func, cc_NE, inner_loop );
+
+   /* Restore EBX */
+   x86_pop( func, x86_make_reg( file_REG32, reg_BX ) );
+}
 
 /**
  * Translate a TGSI vertex/fragment shader to SSE2 code.
@@ -2048,7 +2171,8 @@ unsigned
 tgsi_emit_sse2(
    const struct tgsi_token *tokens,
    struct x86_function *func,
-   float (*immediates)[4])
+   float (*immediates)[4],
+   boolean do_swizzles )
 {
    struct tgsi_parse_context parse;
    boolean instruction_phase = FALSE;
@@ -2089,6 +2213,9 @@ tgsi_emit_sse2(
    else {
       assert(parse.FullHeader.Processor.Processor == TGSI_PROCESSOR_VERTEX);
 
+      if (do_swizzles)
+         aos_to_soa( func, 5, 0, 6, 7 );
+
       x86_mov(
          func,
          get_input_base(),
@@ -2176,6 +2303,17 @@ tgsi_emit_sse2(
       }
    }
 
+   if (parse.FullHeader.Processor.Processor == TGSI_PROCESSOR_VERTEX) {
+      if (do_swizzles)
+         soa_to_aos( func, 8, 1, 9, 10 );
+   }
+
+#ifdef WIN32
+   emit_retw( func, 16 );
+#else
+   emit_ret( func );
+#endif
+
    tgsi_parse_free( &parse );
 
    return ok;