gallium: proper constructor and destructor for tgsi_exec_machine

Centralize the creation, initialization and destruction of this struct.
Use align_malloc instead of home-brew alternatives.

2 files changed, 48 insertions, 19 deletions

diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index 5cb322a5fa2..d9ebd955c82 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -365,15 +365,38 @@ tgsi_exec_machine_bind_shader(
 }
 
 
-void
-tgsi_exec_machine_init(
-   struct tgsi_exec_machine *mach )
+struct tgsi_exec_machine *
+tgsi_exec_machine_create( void )
 {
+   struct tgsi_exec_machine *mach;
    uint i;
 
-   mach->Temps = (struct tgsi_exec_vector *) tgsi_align_128bit( mach->_Temps);
+   mach = align_malloc( sizeof *mach, 16 );
+   if (!mach)
+      goto fail;
+
    mach->Addrs = &mach->Temps[TGSI_EXEC_TEMP_ADDR];
 
+   mach->Samplers = NULL;
+   mach->Consts = NULL;
+   mach->Inputs = NULL;
+   mach->Outputs = NULL;
+   mach->Tokens = NULL;
+   mach->Primitives = NULL;
+   mach->InterpCoefs = NULL;
+   mach->Instructions = NULL;
+   mach->Declarations = NULL;
+
+   mach->Inputs = align_malloc(PIPE_MAX_ATTRIBS * 
+			       sizeof(struct tgsi_exec_vector), 16);
+   if (!mach->Inputs)
+      goto fail;
+
+   mach->Outputs = align_malloc(PIPE_MAX_ATTRIBS * 
+				sizeof(struct tgsi_exec_vector), 16);
+   if (!mach->Outputs)
+      goto fail;
+
    /* Setup constants. */
    for( i = 0; i < 4; i++ ) {
       mach->Temps[TEMP_0_I].xyzw[TEMP_0_C].u[i] = 0x00000000;
@@ -393,11 +416,22 @@ tgsi_exec_machine_init(
    (void) print_chan;
    (void) print_temp;
 #endif
+
+   return mach;
+
+fail:
+   if (mach) {
+      align_free(mach->Inputs);
+      align_free(mach->Outputs);
+      align_free(mach);
+   }
+
+   return NULL;
 }
 
 
 void
-tgsi_exec_machine_free_data(struct tgsi_exec_machine *mach)
+tgsi_exec_machine_destroy(struct tgsi_exec_machine *mach)
 {
    if (mach->Instructions) {
       FREE(mach->Instructions);
@@ -409,6 +443,7 @@ tgsi_exec_machine_free_data(struct tgsi_exec_machine *mach)
       mach->Declarations = NULL;
       mach->NumDeclarations = 0;
    }
+   align_free(mach);
 }
 
 
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h b/src/gallium/auxiliary/tgsi/tgsi_exec.h
index da22baad3ef..f1866b7658c 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
@@ -187,20 +187,16 @@ struct tgsi_exec_labels
 struct tgsi_exec_machine
 {
    /* Total = program temporaries + internal temporaries
-    *         + 1 padding to align to 16 bytes
     */
-   struct tgsi_exec_vector       _Temps[TGSI_EXEC_NUM_TEMPS +
-                                        TGSI_EXEC_NUM_TEMP_EXTRAS + 1];
+   struct tgsi_exec_vector       Temps[TGSI_EXEC_NUM_TEMPS +
+                                       TGSI_EXEC_NUM_TEMP_EXTRAS];
+
+   float                         Imms[TGSI_EXEC_NUM_IMMEDIATES][4];
 
-   /*
-    * This will point to _Temps after aligning to 16B boundary.
-    */
-   struct tgsi_exec_vector       *Temps;
    struct tgsi_exec_vector       *Addrs;
 
    struct tgsi_sampler           **Samplers;
 
-   float                         Imms[TGSI_EXEC_NUM_IMMEDIATES][4];
    unsigned                      ImmLimit;
    const float                   (*Consts)[4];
    struct tgsi_exec_vector       *Inputs;
@@ -251,9 +247,11 @@ struct tgsi_exec_machine
    struct tgsi_exec_labels Labels;
 };
 
+struct tgsi_exec_machine *
+tgsi_exec_machine_create( void );
+
 void
-tgsi_exec_machine_init(
-   struct tgsi_exec_machine *mach );
+tgsi_exec_machine_destroy(struct tgsi_exec_machine *mach);
 
 
 void 
@@ -268,10 +266,6 @@ tgsi_exec_machine_run(
    struct tgsi_exec_machine *mach );
 
 
-void
-tgsi_exec_machine_free_data(struct tgsi_exec_machine *mach);
-
-
 static INLINE void
 tgsi_set_kill_mask(struct tgsi_exec_machine *mach, unsigned mask)
 {