Added OPCODE_INT to convert 4 floats to 4 ints.

4 files changed, 30 insertions, 0 deletions

diff --git a/src/mesa/shader/prog_instruction.c b/src/mesa/shader/prog_instruction.c
index bebc3ecb69f..1379018d4ac 100644
--- a/src/mesa/shader/prog_instruction.c
+++ b/src/mesa/shader/prog_instruction.c
@@ -135,6 +135,7 @@ static const struct instruction_info InstInfo[MAX_OPCODE] = {
    { OPCODE_EXP,    "EXP",   1 },
    { OPCODE_FLR,    "FLR",   1 },
    { OPCODE_FRC,    "FRC",   1 },
+   { OPCODE_INT,    "INT",   1 },
    { OPCODE_KIL,    "KIL",   1 },
    { OPCODE_KIL_NV, "KIL",   0 },
    { OPCODE_LG2,    "LG2",   1 },
diff --git a/src/mesa/shader/prog_instruction.h b/src/mesa/shader/prog_instruction.h
index d825e6e0a37..b6598796510 100644
--- a/src/mesa/shader/prog_instruction.h
+++ b/src/mesa/shader/prog_instruction.h
@@ -148,6 +148,7 @@ typedef enum prog_opcode {
    OPCODE_EXP,       /*   X                X            */
    OPCODE_FLR,       /*   X        X       2       X    */
    OPCODE_FRC,       /*   X        X       2       X    */
+   OPCODE_INT,       /*                                 */
    OPCODE_KIL,       /*            X                    */
    OPCODE_KIL_NV,    /*                            X    */
    OPCODE_LG2,       /*   X        X       2       X    */
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c
index 83a50c7451a..b842b49616c 100644
--- a/src/mesa/swrast/s_fragprog.c
+++ b/src/mesa/swrast/s_fragprog.c
@@ -888,6 +888,17 @@ execute_program( GLcontext *ctx,
                store_vector4( inst, machine, result );
             }
             break;
+         case OPCODE_INT: /* float to int */
+            {
+               GLfloat a[4], result[4];
+               fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a );
+               result[0] = (GLfloat) (GLint) a[0];
+               result[1] = (GLfloat) (GLint) a[1];
+               result[2] = (GLfloat) (GLint) a[2];
+               result[3] = (GLfloat) (GLint) a[3];
+               store_vector4( inst, machine, result );
+            }
+            break;
          case OPCODE_KIL_NV: /* NV_f_p only */
             {
                const GLuint swizzle = inst->DstReg.CondSwizzle;
diff --git a/src/mesa/tnl/t_vb_arbprogram.c b/src/mesa/tnl/t_vb_arbprogram.c
index 906fd3f1e8a..5773f0f6270 100644
--- a/src/mesa/tnl/t_vb_arbprogram.c
+++ b/src/mesa/tnl/t_vb_arbprogram.c
@@ -338,6 +338,17 @@ static void do_FRC( struct arb_vp_machine *m, union instruction op )
    result[3] = arg0[3] - FLOORF(arg0[3]);
 }
 
+static void do_INT( struct arb_vp_machine *m, union instruction op ) 
+{
+   GLfloat *result = m->File[0][op.alu.dst];
+   const GLfloat *arg0 = m->File[op.alu.file0][op.alu.idx0];
+
+   result[0] = (GLfloat) (GLint) arg0[0];
+   result[1] = (GLfloat) (GLint) arg0[1];
+   result[2] = (GLfloat) (GLint) arg0[2];
+   result[3] = (GLfloat) (GLint) arg0[3];
+}
+
 /* High precision log base 2:
  */
 static void do_LG2( struct arb_vp_machine *m, union instruction op ) 
@@ -665,6 +676,7 @@ _tnl_disassem_vba_insn( union instruction op )
    case OPCODE_EXP:
    case OPCODE_FLR:
    case OPCODE_FRC:
+   case OPCODE_INT:
    case OPCODE_LG2:
    case OPCODE_LIT:
    case OPCODE_LOG:
@@ -739,6 +751,7 @@ static void (* const opcode_func[MAX_OPCODE+3])(struct arb_vp_machine *, union i
    do_EXP,
    do_FLR,
    do_FRC,
+   do_INT,
    do_NOP,/*KIL*/
    do_NOP,/*KIL_NV*/
    do_LG2,
@@ -1458,6 +1471,10 @@ static GLboolean init_vertex_program( GLcontext *ctx,
    const GLuint size = VB->Size;
    GLuint i;
 
+   /* spot checks to be sure the opcode table is correct */
+   assert(opcode_func[OPCODE_SGE] == do_SGE);
+   assert(opcode_func[OPCODE_XPD] == do_XPD);
+
    stage->privatePtr = _mesa_calloc(sizeof(*m));
    m = ARB_VP_MACHINE(stage);
    if (!m)