svn merge -r524:HEAD "^/branches/released" .

1 files changed, 84 insertions, 43 deletions

diff --git a/mesalib/src/mesa/shader/prog_execute.c b/mesalib/src/mesa/shader/prog_execute.c
index 192d39aed..37750cc33 100644
--- a/mesalib/src/mesa/shader/prog_execute.c
+++ b/mesalib/src/mesa/shader/prog_execute.c
@@ -38,7 +38,6 @@
 #include "main/glheader.h"
 #include "main/colormac.h"
 #include "main/context.h"
-#include "program.h"
 #include "prog_execute.h"
 #include "prog_instruction.h"
 #include "prog_parameter.h"
@@ -54,8 +53,18 @@
  * Set x to positive or negative infinity.
  */
 #if defined(USE_IEEE) || defined(_WIN32)
-#define SET_POS_INFINITY(x)  ( *((GLuint *) (void *)&x) = 0x7F800000 )
-#define SET_NEG_INFINITY(x)  ( *((GLuint *) (void *)&x) = 0xFF800000 )
+#define SET_POS_INFINITY(x)                  \
+   do {                                      \
+         fi_type fi;                         \
+         fi.i = 0x7F800000;                  \
+         x = fi.f;                           \
+   } while (0)
+#define SET_NEG_INFINITY(x)                  \
+   do {                                      \
+         fi_type fi;                         \
+         fi.i = 0xFF800000;                  \
+         x = fi.f;                           \
+   } while (0)
 #elif defined(VMS)
 #define SET_POS_INFINITY(x)  x = __MAXFLOAT
 #define SET_NEG_INFINITY(x)  x = -__MAXFLOAT
@@ -342,6 +351,15 @@ fetch_vector1(const struct prog_src_register *source,
 }
 
 
+static GLuint
+fetch_vector1ui(const struct prog_src_register *source,
+                const struct gl_program_machine *machine)
+{
+   const GLuint *src = (GLuint *) get_src_register_pointer(source, machine);
+   return src[GET_SWZ(source->Swizzle, 0)];
+}
+
+
 /**
  * Fetch texel from texture.  Use partial derivatives when possible.
  */
@@ -568,13 +586,13 @@ store_vector4ui(const struct prog_instruction *inst,
 
    if (inst->CondUpdate) {
       if (writeMask & WRITEMASK_X)
-         machine->CondCodes[0] = generate_cc(value[0]);
+         machine->CondCodes[0] = generate_cc((float)value[0]);
       if (writeMask & WRITEMASK_Y)
-         machine->CondCodes[1] = generate_cc(value[1]);
+         machine->CondCodes[1] = generate_cc((float)value[1]);
       if (writeMask & WRITEMASK_Z)
-         machine->CondCodes[2] = generate_cc(value[2]);
+         machine->CondCodes[2] = generate_cc((float)value[2]);
       if (writeMask & WRITEMASK_W)
-         machine->CondCodes[3] = generate_cc(value[3]);
+         machine->CondCodes[3] = generate_cc((float)value[3]);
 #if DEBUG_PROG
       printf("CondCodes=(%s,%s,%s,%s) for:\n",
              _mesa_condcode_string(machine->CondCodes[0]),
@@ -670,13 +688,20 @@ _mesa_execute_program(GLcontext * ctx,
             GLfloat t[4];
             fetch_vector4(&inst->SrcReg[0], machine, t);
             machine->AddressReg[0][0] = IFLOOR(t[0]);
+            if (DEBUG_PROG) {
+               printf("ARL %d\n", machine->AddressReg[0][0]);
+            }
          }
          break;
       case OPCODE_BGNLOOP:
          /* no-op */
+         ASSERT(program->Instructions[inst->BranchTarget].Opcode
+                == OPCODE_ENDLOOP);
          break;
       case OPCODE_ENDLOOP:
          /* subtract 1 here since pc is incremented by for(pc) loop */
+         ASSERT(program->Instructions[inst->BranchTarget].Opcode
+                == OPCODE_BGNLOOP);
          pc = inst->BranchTarget - 1;   /* go to matching BNGLOOP */
          break;
       case OPCODE_BGNSUB:      /* begin subroutine */
@@ -684,12 +709,26 @@ _mesa_execute_program(GLcontext * ctx,
       case OPCODE_ENDSUB:      /* end subroutine */
          break;
       case OPCODE_BRA:         /* branch (conditional) */
-         /* fall-through */
+         if (eval_condition(machine, inst)) {
+            /* take branch */
+            /* Subtract 1 here since we'll do pc++ below */
+            pc = inst->BranchTarget - 1;
+         }
+         break;
       case OPCODE_BRK:         /* break out of loop (conditional) */
-         /* fall-through */
+         ASSERT(program->Instructions[inst->BranchTarget].Opcode
+                == OPCODE_ENDLOOP);
+         if (eval_condition(machine, inst)) {
+            /* break out of loop */
+            /* pc++ at end of for-loop will put us after the ENDLOOP inst */
+            pc = inst->BranchTarget;
+         }
+         break;
       case OPCODE_CONT:        /* continue loop (conditional) */
+         ASSERT(program->Instructions[inst->BranchTarget].Opcode
+                == OPCODE_ENDLOOP);
          if (eval_condition(machine, inst)) {
-            /* take branch */
+            /* continue at ENDLOOP */
             /* Subtract 1 here since we'll do pc++ at end of for-loop */
             pc = inst->BranchTarget - 1;
          }
@@ -882,6 +921,10 @@ _mesa_execute_program(GLcontext * ctx,
       case OPCODE_IF:
          {
             GLboolean cond;
+            ASSERT(program->Instructions[inst->BranchTarget].Opcode
+                   == OPCODE_ELSE ||
+                   program->Instructions[inst->BranchTarget].Opcode
+                   == OPCODE_ENDIF);
             /* eval condition */
             if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
                GLfloat a[4];
@@ -901,14 +944,16 @@ _mesa_execute_program(GLcontext * ctx,
             else {
                /* go to the instruction after ELSE or ENDIF */
                assert(inst->BranchTarget >= 0);
-               pc = inst->BranchTarget - 1;
+               pc = inst->BranchTarget;
             }
          }
          break;
       case OPCODE_ELSE:
          /* goto ENDIF */
+         ASSERT(program->Instructions[inst->BranchTarget].Opcode
+                == OPCODE_ENDIF);
          assert(inst->BranchTarget >= 0);
-         pc = inst->BranchTarget - 1;
+         pc = inst->BranchTarget;
          break;
       case OPCODE_ENDIF:
          /* nothing */
@@ -942,7 +987,7 @@ _mesa_execute_program(GLcontext * ctx,
                val = -FLT_MAX;
             }
             else {
-               val = log(a[0]) * 1.442695F;
+               val = (float)(log(a[0]) * 1.442695F);
             }
             result[0] = result[1] = result[2] = result[3] = val;
             store_vector4(inst, machine, result);
@@ -962,12 +1007,12 @@ _mesa_execute_program(GLcontext * ctx,
             /* XXX we could probably just use pow() here */
             if (a[0] > 0.0F) {
                if (a[1] == 0.0 && a[3] == 0.0)
-                  result[2] = 1.0;
+                  result[2] = 1.0F;
                else
                   result[2] = (GLfloat) _mesa_pow(a[1], a[3]);
             }
             else {
-               result[2] = 0.0;
+               result[2] = 0.0F;
             }
             result[3] = 1.0F;
             store_vector4(inst, machine, result);
@@ -1007,7 +1052,7 @@ _mesa_execute_program(GLcontext * ctx,
 		  /* The fast LOG2 macro doesn't meet the precision
 		   * requirements.
 		   */
-                  q[2] = (log(t[0]) * 1.442695F);
+                  q[2] = (float)(log(t[0]) * 1.442695F);
                }
             }
             else {
@@ -1634,12 +1679,11 @@ _mesa_execute_program(GLcontext * ctx,
          break;
       case OPCODE_UP2H:        /* unpack two 16-bit floats */
          {
-            GLfloat a[4], result[4];
-            const GLuint *rawBits = (const GLuint *) a;
-            GLhalfNV hx, hy;
-            fetch_vector1(&inst->SrcReg[0], machine, a);
-            hx = rawBits[0] & 0xffff;
-            hy = rawBits[0] >> 16;
+            const GLuint raw = fetch_vector1ui(&inst->SrcReg[0], machine);
+            GLfloat result[4];
+            GLushort hx, hy;
+            hx = raw & 0xffff;
+            hy = raw >> 16;
             result[0] = result[2] = _mesa_half_to_float(hx);
             result[1] = result[3] = _mesa_half_to_float(hy);
             store_vector4(inst, machine, result);
@@ -1647,12 +1691,11 @@ _mesa_execute_program(GLcontext * ctx,
          break;
       case OPCODE_UP2US:       /* unpack two GLushorts */
          {
-            GLfloat a[4], result[4];
-            const GLuint *rawBits = (const GLuint *) a;
+            const GLuint raw = fetch_vector1ui(&inst->SrcReg[0], machine);
+            GLfloat result[4];
             GLushort usx, usy;
-            fetch_vector1(&inst->SrcReg[0], machine, a);
-            usx = rawBits[0] & 0xffff;
-            usy = rawBits[0] >> 16;
+            usx = raw & 0xffff;
+            usy = raw >> 16;
             result[0] = result[2] = usx * (1.0f / 65535.0f);
             result[1] = result[3] = usy * (1.0f / 65535.0f);
             store_vector4(inst, machine, result);
@@ -1660,25 +1703,23 @@ _mesa_execute_program(GLcontext * ctx,
          break;
       case OPCODE_UP4B:        /* unpack four GLbytes */
          {
-            GLfloat a[4], result[4];
-            const GLuint *rawBits = (const GLuint *) a;
-            fetch_vector1(&inst->SrcReg[0], machine, a);
-            result[0] = (((rawBits[0] >> 0) & 0xff) - 128) / 127.0F;
-            result[1] = (((rawBits[0] >> 8) & 0xff) - 128) / 127.0F;
-            result[2] = (((rawBits[0] >> 16) & 0xff) - 128) / 127.0F;
-            result[3] = (((rawBits[0] >> 24) & 0xff) - 128) / 127.0F;
+            const GLuint raw = fetch_vector1ui(&inst->SrcReg[0], machine);
+            GLfloat result[4];
+            result[0] = (((raw >> 0) & 0xff) - 128) / 127.0F;
+            result[1] = (((raw >> 8) & 0xff) - 128) / 127.0F;
+            result[2] = (((raw >> 16) & 0xff) - 128) / 127.0F;
+            result[3] = (((raw >> 24) & 0xff) - 128) / 127.0F;
             store_vector4(inst, machine, result);
          }
          break;
       case OPCODE_UP4UB:       /* unpack four GLubytes */
          {
-            GLfloat a[4], result[4];
-            const GLuint *rawBits = (const GLuint *) a;
-            fetch_vector1(&inst->SrcReg[0], machine, a);
-            result[0] = ((rawBits[0] >> 0) & 0xff) / 255.0F;
-            result[1] = ((rawBits[0] >> 8) & 0xff) / 255.0F;
-            result[2] = ((rawBits[0] >> 16) & 0xff) / 255.0F;
-            result[3] = ((rawBits[0] >> 24) & 0xff) / 255.0F;
+            const GLuint raw = fetch_vector1ui(&inst->SrcReg[0], machine);
+            GLfloat result[4];
+            result[0] = ((raw >> 0) & 0xff) / 255.0F;
+            result[1] = ((raw >> 8) & 0xff) / 255.0F;
+            result[2] = ((raw >> 16) & 0xff) / 255.0F;
+            result[3] = ((raw >> 24) & 0xff) / 255.0F;
             store_vector4(inst, machine, result);
          }
          break;
@@ -1729,11 +1770,11 @@ _mesa_execute_program(GLcontext * ctx,
             if (inst->SrcReg[0].File != -1) {
                GLfloat a[4];
                fetch_vector4(&inst->SrcReg[0], machine, a);
-               _mesa_printf("%s%g, %g, %g, %g\n", (const char *) inst->Data,
+               printf("%s%g, %g, %g, %g\n", (const char *) inst->Data,
                             a[0], a[1], a[2], a[3]);
             }
             else {
-               _mesa_printf("%s\n", (const char *) inst->Data);
+               printf("%s\n", (const char *) inst->Data);
             }
          }
          break;