From 7c2416f06e518bc1491fe13e145dcc9487d75449 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 11 Apr 2008 15:02:21 -0600
Subject: [PATCH] gallium: handle TGSI immediates in SSE code for vertex
 shaders

---
 src/gallium/auxiliary/draw/draw_vs_sse.c    |  9 ++++++---
 src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c | 23 +++++++++++++++++++----
 src/gallium/auxiliary/tgsi/exec/tgsi_sse2.h |  4 +++-
 3 files changed, 28 insertions(+), 8 deletions(-)

diff --git a/src/gallium/auxiliary/draw/draw_vs_sse.c b/src/gallium/auxiliary/draw/draw_vs_sse.c
index f40d65d..1339412 100644
--- a/src/gallium/auxiliary/draw/draw_vs_sse.c
+++ b/src/gallium/auxiliary/draw/draw_vs_sse.c
@@ -50,13 +50,15 @@ typedef void (XSTDCALL *codegen_function) (
    const struct tgsi_exec_vector *input,
    struct tgsi_exec_vector *output,
    float (*constant)[4],
-   struct tgsi_exec_vector *temporary );
+   struct tgsi_exec_vector *temporary,
+   float (*immediates)[4] );
 
 
 struct draw_sse_vertex_shader {
    struct draw_vertex_shader base;
    struct x86_function sse2_program;
    codegen_function func;
+   float immediates[TGSI_EXEC_NUM_IMMEDIATES][4];
 };
 
 
@@ -149,7 +151,8 @@ vs_sse_run( struct draw_vertex_shader *base,
       shader->func(machine->Inputs,
                    machine->Outputs,
                    machine->Consts,
-                   machine->Temps );
+                   machine->Temps,
+                   shader->immediates);
    }
 
 
@@ -243,7 +246,7 @@ draw_create_vs_sse(struct draw_context *draw,
    x86_init_func( &vs->sse2_program );
 
    if (!tgsi_emit_sse2( (struct tgsi_token *) vs->base.state.tokens,
-			&vs->sse2_program )) 
+			&vs->sse2_program, vs->immediates )) 
       goto fail;
       
    vs->func = (codegen_function) x86_get_func( &vs->sse2_program );
diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
index 748c53d..e55fae6 100755
--- a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
@@ -2316,10 +2316,12 @@ emit_declaration(
 unsigned
 tgsi_emit_sse2(
    struct tgsi_token *tokens,
-   struct x86_function *func )
+   struct x86_function *func,
+   float (*immediates)[4] )
 {
    struct tgsi_parse_context parse;
    unsigned ok = 1;
+   uint num_immediates = 0;
 
    DUMP_START();
 
@@ -2341,6 +2343,10 @@ tgsi_emit_sse2(
       func,
       get_temp_base(),
       get_argument( 3 ) );
+   emit_mov(
+      func,
+      get_immediate_base(),
+      get_argument( 4 ) );
 
    tgsi_parse_init( &parse, tokens );
 
@@ -2363,9 +2369,18 @@ tgsi_emit_sse2(
          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;
+            }
+            num_immediates++;
+         }
 	 break;
 
       default:
diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.h b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.h
index fde0604..d119072 100755
--- a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.h
+++ b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.h
@@ -11,7 +11,9 @@ struct x86_function;
 unsigned
 tgsi_emit_sse2(
    struct tgsi_token *tokens,
-   struct x86_function *function );
+   struct x86_function *function,
+   float (*immediates)[4]
+ );
 
 unsigned
 tgsi_emit_sse2_fs(
-- 
2.7.4