Pull in debug code for human-readable batchbuffer dumps.

3 files changed, 704 insertions, 254 deletions

diff --git a/src/mesa/pipe/i915simple/i915_debug.c b/src/mesa/pipe/i915simple/i915_debug.c
index 8d80590396b..0951319d38d 100644
--- a/src/mesa/pipe/i915simple/i915_debug.c
+++ b/src/mesa/pipe/i915simple/i915_debug.c
@@ -25,313 +25,415 @@
  * 
  **************************************************************************/
 
-#include <stdio.h>
-#include <assert.h>
+#include "imports.h"
 
 #include "i915_reg.h"
+#include "i915_context.h"
 #include "i915_debug.h"
 
 
 
-static const char *opcodes[0x20] = {
-   "NOP",
-   "ADD",
-   "MOV",
-   "MUL",
-   "MAD",
-   "DP2ADD",
-   "DP3",
-   "DP4",
-   "FRC",
-   "RCP",
-   "RSQ",
-   "EXP",
-   "LOG",
-   "CMP",
-   "MIN",
-   "MAX",
-   "FLR",
-   "MOD",
-   "TRC",
-   "SGE",
-   "SLT",
-   "TEXLD",
-   "TEXLDP",
-   "TEXLDB",
-   "TEXKILL",
-   "DCL",
-   "0x1a",
-   "0x1b",
-   "0x1c",
-   "0x1d",
-   "0x1e",
-   "0x1f",
-};
-
-
-static const int args[0x20] = {
-   0,                           /* 0 nop */
-   2,                           /* 1 add */
-   1,                           /* 2 mov */
-   2,                           /* 3 m ul */
-   3,                           /* 4 mad */
-   3,                           /* 5 dp2add */
-   2,                           /* 6 dp3 */
-   2,                           /* 7 dp4 */
-   1,                           /* 8 frc */
-   1,                           /* 9 rcp */
-   1,                           /* a rsq */
-   1,                           /* b exp */
-   1,                           /* c log */
-   3,                           /* d cmp */
-   2,                           /* e min */
-   2,                           /* f max */
-   1,                           /* 10 flr */
-   1,                           /* 11 mod */
-   1,                           /* 12 trc */
-   2,                           /* 13 sge */
-   2,                           /* 14 slt */
-   1,
-   1,
-   1,
-   1,
-   0,
-   0,
-   0,
-   0,
-   0,
-   0,
-   0,
-};
-
-
-static const char *regname[0x8] = {
-   "R",
-   "T",
-   "CONST",
-   "S",
-   "OC",
-   "OD",
-   "U",
-   "UNKNOWN",
-};
-
-static void
-print_reg_type_nr(unsigned type, unsigned nr)
+static GLboolean debug( struct debug_stream *stream, const char *name, GLuint len )
 {
-   switch (type) {
-   case REG_TYPE_T:
-      switch (nr) {
-      case T_DIFFUSE:
-         fprintf(stderr, "T_DIFFUSE");
-         return;
-      case T_SPECULAR:
-         fprintf(stderr, "T_SPECULAR");
-         return;
-      case T_FOG_W:
-         fprintf(stderr, "T_FOG_W");
-         return;
-      default:
-         fprintf(stderr, "T_TEX%d", nr);
-         return;
-      }
-   case REG_TYPE_OC:
-      if (nr == 0) {
-         fprintf(stderr, "oC");
-         return;
-      }
-      break;
-   case REG_TYPE_OD:
-      if (nr == 0) {
-         fprintf(stderr, "oD");
-         return;
-      }
-      break;
-   default:
-      break;
+   GLuint i;
+   GLuint *ptr = (GLuint *)(stream->ptr + stream->offset);
+   
+   if (len == 0) {
+      _mesa_printf("Error - zero length packet (0x%08x)\n", stream->ptr[0]);
+      assert(0);
+      return GL_FALSE;
    }
 
-   fprintf(stderr, "%s[%d]", regname[type], nr);
-}
+   if (stream->print_addresses)
+      _mesa_printf("%08x:  ", stream->offset);
+
 
-#define REG_SWIZZLE_MASK 0x7777
-#define REG_NEGATE_MASK 0x8888
+   _mesa_printf("%s (%d dwords):\n", name, len);
+   for (i = 0; i < len; i++)
+      _mesa_printf("\t\t0x%08x\n",  ptr[i]);   
+   _mesa_printf("\n");
 
-#define REG_SWIZZLE_XYZW ((SRC_X << A2_SRC2_CHANNEL_X_SHIFT) |	\
-		      (SRC_Y << A2_SRC2_CHANNEL_Y_SHIFT) |	\
-		      (SRC_Z << A2_SRC2_CHANNEL_Z_SHIFT) |	\
-		      (SRC_W << A2_SRC2_CHANNEL_W_SHIFT))
+   stream->offset += len * sizeof(GLuint);
+   
+   return GL_TRUE;
+}
 
 
-static void
-print_reg_neg_swizzle(unsigned reg)
+static const char *get_prim_name( GLuint val )
 {
-   int i;
-
-   if ((reg & REG_SWIZZLE_MASK) == REG_SWIZZLE_XYZW &&
-       (reg & REG_NEGATE_MASK) == 0)
-      return;
-
-   fprintf(stderr, ".");
-
-   for (i = 3; i >= 0; i--) {
-      if (reg & (1 << ((i * 4) + 3)))
-         fprintf(stderr, "-");
-
-      switch ((reg >> (i * 4)) & 0x7) {
-      case 0:
-         fprintf(stderr, "x");
-         break;
-      case 1:
-         fprintf(stderr, "y");
-         break;
-      case 2:
-         fprintf(stderr, "z");
-         break;
-      case 3:
-         fprintf(stderr, "w");
-         break;
-      case 4:
-         fprintf(stderr, "0");
-         break;
-      case 5:
-         fprintf(stderr, "1");
-         break;
-      default:
-         fprintf(stderr, "?");
-         break;
-      }
+   switch (val & PRIM3D_MASK) {
+   case PRIM3D_TRILIST: return "TRILIST"; break;
+   case PRIM3D_TRISTRIP: return "TRISTRIP"; break;
+   case PRIM3D_TRISTRIP_RVRSE: return "TRISTRIP_RVRSE"; break;
+   case PRIM3D_TRIFAN: return "TRIFAN"; break;
+   case PRIM3D_POLY: return "POLY"; break;
+   case PRIM3D_LINELIST: return "LINELIST"; break;
+   case PRIM3D_LINESTRIP: return "LINESTRIP"; break;
+   case PRIM3D_RECTLIST: return "RECTLIST"; break;
+   case PRIM3D_POINTLIST: return "POINTLIST"; break;
+   case PRIM3D_DIB: return "DIB"; break;
+   case PRIM3D_CLEAR_RECT: return "CLEAR_RECT"; break;
+   case PRIM3D_ZONE_INIT: return "ZONE_INIT"; break;
+   default: return "????"; break;
    }
 }
 
-
-static void
-print_src_reg(unsigned dword)
+static GLboolean debug_prim( struct debug_stream *stream, const char *name, 
+			     GLboolean dump_floats,
+			     GLuint len )
 {
-   unsigned nr = (dword >> A2_SRC2_NR_SHIFT) & REG_NR_MASK;
-   unsigned type = (dword >> A2_SRC2_TYPE_SHIFT) & REG_TYPE_MASK;
-   print_reg_type_nr(type, nr);
-   print_reg_neg_swizzle(dword);
+   GLuint *ptr = (GLuint *)(stream->ptr + stream->offset);
+   const char *prim = get_prim_name( ptr[0] );
+   GLuint i;
+   
+
+
+   _mesa_printf("%s %s (%d dwords):\n", name, prim, len);
+   _mesa_printf("\t\t0x%08x\n",  ptr[0]);   
+   for (i = 1; i < len; i++) {
+      if (dump_floats)
+	 _mesa_printf("\t\t0x%08x // %f\n",  ptr[i], *(GLfloat *)&ptr[i]);   
+      else
+	 _mesa_printf("\t\t0x%08x\n",  ptr[i]);   
+   }
+
+      
+   _mesa_printf("\n");
+
+   stream->offset += len * sizeof(GLuint);
+   
+   return GL_TRUE;
 }
+   
 
-void
-i915_print_ureg(const char *msg, unsigned ureg)
+
+
+static GLboolean debug_program( struct debug_stream *stream, const char *name, GLuint len )
 {
-   fprintf(stderr, "%s: ", msg);
-   print_src_reg(ureg >> 8);
-   fprintf(stderr, "\n");
+   GLuint *ptr = (GLuint *)(stream->ptr + stream->offset);
+
+   if (len == 0) {
+      _mesa_printf("Error - zero length packet (0x%08x)\n", stream->ptr[0]);
+      assert(0);
+      return GL_FALSE;
+   }
+
+   if (stream->print_addresses)
+      _mesa_printf("%08x:  ", stream->offset);
+
+   _mesa_printf("%s (%d dwords):\n", name, len);
+   i915_disassemble_program( ptr, len );
+
+   stream->offset += len * sizeof(GLuint);
+   return GL_TRUE;
 }
 
-static void
-print_dest_reg(unsigned dword)
+
+static GLboolean debug_chain( struct debug_stream *stream, const char *name, GLuint len )
 {
-   unsigned nr = (dword >> A0_DEST_NR_SHIFT) & REG_NR_MASK;
-   unsigned type = (dword >> A0_DEST_TYPE_SHIFT) & REG_TYPE_MASK;
-   print_reg_type_nr(type, nr);
-   if ((dword & A0_DEST_CHANNEL_ALL) == A0_DEST_CHANNEL_ALL)
-      return;
-   fprintf(stderr, ".");
-   if (dword & A0_DEST_CHANNEL_X)
-      fprintf(stderr, "x");
-   if (dword & A0_DEST_CHANNEL_Y)
-      fprintf(stderr, "y");
-   if (dword & A0_DEST_CHANNEL_Z)
-      fprintf(stderr, "z");
-   if (dword & A0_DEST_CHANNEL_W)
-      fprintf(stderr, "w");
-}
+   GLuint *ptr = (GLuint *)(stream->ptr + stream->offset);
+   GLuint old_offset = stream->offset + len * sizeof(GLuint);
+   GLuint i;
+
+   _mesa_printf("%s (%d dwords):\n", name, len);
+   for (i = 0; i < len; i++)
+      _mesa_printf("\t\t0x%08x\n",  ptr[i]);
 
+   stream->offset = ptr[1] & ~0x3;
+   
+   if (stream->offset < old_offset)
+      _mesa_printf("\n... skipping backwards from 0x%x --> 0x%x ...\n\n", 
+		   old_offset, stream->offset );
+   else
+      _mesa_printf("\n... skipping from 0x%x --> 0x%x ...\n\n", 
+		   old_offset, stream->offset );
 
-#define GET_SRC0_REG(r0, r1) ((r0<<14)|(r1>>A1_SRC0_CHANNEL_W_SHIFT))
-#define GET_SRC1_REG(r0, r1) ((r0<<8)|(r1>>A2_SRC1_CHANNEL_W_SHIFT))
-#define GET_SRC2_REG(r)      (r)
+
+   return GL_TRUE;
+}
 
 
-static void
-print_arith_op(unsigned opcode, const unsigned * program)
+static GLboolean debug_variable_length_prim( struct debug_stream *stream )
 {
-   if (opcode != A0_NOP) {
-      print_dest_reg(program[0]);
-      if (program[0] & A0_DEST_SATURATE)
-         fprintf(stderr, " = SATURATE ");
-      else
-         fprintf(stderr, " = ");
-   }
+   GLuint *ptr = (GLuint *)(stream->ptr + stream->offset);
+   const char *prim = get_prim_name( ptr[0] );
+   GLuint i, len;
 
-   fprintf(stderr, "%s ", opcodes[opcode]);
+   GLushort *idx = (GLushort *)(ptr+1);
+   for (i = 0; idx[i] != 0xffff; i++)
+      ;
 
-   print_src_reg(GET_SRC0_REG(program[0], program[1]));
-   if (args[opcode] == 1) {
-      fprintf(stderr, "\n");
-      return;
-   }
+   len = 1+(i+2)/2;
 
-   fprintf(stderr, ", ");
-   print_src_reg(GET_SRC1_REG(program[1], program[2]));
-   if (args[opcode] == 2) {
-      fprintf(stderr, "\n");
-      return;
+   _mesa_printf("3DPRIM, %s variable length %d indicies (%d dwords):\n", prim, i, len);
+   for (i = 0; i < len; i++)
+      _mesa_printf("\t\t0x%08x\n",  ptr[i]);
+   _mesa_printf("\n");
+
+   stream->offset += len * sizeof(GLuint);
+   return GL_TRUE;
+}
+
+
+static GLboolean debug_load_immediate( struct debug_stream *stream,
+				       const char *name,
+				       GLuint len )
+{
+   GLuint *ptr = (GLuint *)(stream->ptr + stream->offset);
+   GLuint bits = (ptr[0] >> 4) & 0xff;
+   GLuint i, j = 0;
+   
+   _mesa_printf("%s (%d dwords, flags: %x):\n", name, len, bits);
+   _mesa_printf("\t\t0x%08x\n",  ptr[j++]);
+
+   for (i = 0; i < 8; i++) {
+      if (bits & (1<<i)) {
+	 _mesa_printf("\t  LIS%d: 0x%08x\n", i, ptr[j++]);
+      }
    }
 
-   fprintf(stderr, ", ");
-   print_src_reg(GET_SRC2_REG(program[2]));
-   fprintf(stderr, "\n");
-   return;
+   _mesa_printf("\n");
+
+   assert(j == len);
+
+   stream->offset += len * sizeof(GLuint);
+   
+   return GL_TRUE;
 }
+ 
 
 
-static void
-print_tex_op(unsigned opcode, const unsigned * program)
+static GLboolean debug_load_indirect( struct debug_stream *stream,
+				      const char *name,
+				      GLuint len )
 {
-   print_dest_reg(program[0] | A0_DEST_CHANNEL_ALL);
-   fprintf(stderr, " = ");
+   GLuint *ptr = (GLuint *)(stream->ptr + stream->offset);
+   GLuint bits = (ptr[0] >> 8) & 0x3f;
+   GLuint i, j = 0;
+   
+   _mesa_printf("%s (%d dwords):\n", name, len);
+   _mesa_printf("\t\t0x%08x\n",  ptr[j++]);
+
+   for (i = 0; i < 6; i++) {
+      if (bits & (1<<i)) {
+	 switch (1<<(8+i)) {
+	 case LI0_STATE_STATIC_INDIRECT:
+	    _mesa_printf("        STATIC: 0x%08x | %x\n", ptr[j]&~3, ptr[j]&3); j++;
+	    _mesa_printf("                0x%08x\n", ptr[j++]);
+	    break;
+	 case LI0_STATE_DYNAMIC_INDIRECT:
+	    _mesa_printf("       DYNAMIC: 0x%08x | %x\n", ptr[j]&~3, ptr[j]&3); j++;
+	    break;
+	 case LI0_STATE_SAMPLER:
+	    _mesa_printf("       SAMPLER: 0x%08x | %x\n", ptr[j]&~3, ptr[j]&3); j++;
+	    _mesa_printf("                0x%08x\n", ptr[j++]);
+	    break;
+	 case LI0_STATE_MAP:
+	    _mesa_printf("           MAP: 0x%08x | %x\n", ptr[j]&~3, ptr[j]&3); j++;
+	    _mesa_printf("                0x%08x\n", ptr[j++]);
+	    break;
+	 case LI0_STATE_PROGRAM:
+	    _mesa_printf("       PROGRAM: 0x%08x | %x\n", ptr[j]&~3, ptr[j]&3); j++;
+	    _mesa_printf("                0x%08x\n", ptr[j++]);
+	    break;
+	 case LI0_STATE_CONSTANTS:
+	    _mesa_printf("     CONSTANTS: 0x%08x | %x\n", ptr[j]&~3, ptr[j]&3); j++;
+	    _mesa_printf("                0x%08x\n", ptr[j++]);
+	    break;
+	 default:
+	    assert(0);
+	    break;
+	 }
+      }
+   }
 
-   fprintf(stderr, "%s ", opcodes[opcode]);
+   if (bits == 0) {
+      _mesa_printf("\t  DUMMY: 0x%08x\n", ptr[j++]);
+   }
 
-   fprintf(stderr, "S[%d],", program[0] & T0_SAMPLER_NR_MASK);
+   _mesa_printf("\n");
 
-   print_reg_type_nr((program[1] >> T1_ADDRESS_REG_TYPE_SHIFT) &
-                     REG_TYPE_MASK,
-                     (program[1] >> T1_ADDRESS_REG_NR_SHIFT) & REG_NR_MASK);
-   fprintf(stderr, "\n");
+
+   assert(j == len);
+
+   stream->offset += len * sizeof(GLuint);
+   
+   return GL_TRUE;
 }
+ 		   
 
-static void
-print_dcl_op(unsigned opcode, const unsigned * program)
+static GLboolean i915_debug_packet( struct debug_stream *stream )
 {
-   fprintf(stderr, "%s ", opcodes[opcode]);
-   print_dest_reg(program[0] | A0_DEST_CHANNEL_ALL);
-   fprintf(stderr, "\n");
+   GLuint *ptr = (GLuint *)(stream->ptr + stream->offset);
+   GLuint cmd = *ptr;
+   
+   switch (((cmd >> 29) & 0x7)) {
+   case 0x0:
+      switch ((cmd >> 23) & 0x3f) {
+      case 0x0:
+	 return debug(stream, "MI_NOOP", 1);
+      case 0x3:
+	 return debug(stream, "MI_WAIT_FOR_EVENT", 1);
+      case 0x4:
+	 return debug(stream, "MI_FLUSH", 1);
+      case 0xA:
+	 debug(stream, "MI_BATCH_BUFFER_END", 1);
+	 return GL_FALSE;
+      case 0x22:
+	 return debug(stream, "MI_LOAD_REGISTER_IMM", 3);
+      case 0x31:
+	 return debug_chain(stream, "MI_BATCH_BUFFER_START", 2);
+      default:
+	 break;
+      }
+      break;
+   case 0x1:
+      break;
+   case 0x2:
+      switch ((cmd >> 22) & 0xff) {	 
+      case 0x50:
+	 return debug(stream, "XY_COLOR_BLT", (cmd & 0xff) + 2);
+      case 0x53:
+	 return debug(stream, "XY_SRC_COPY_BLT", (cmd & 0xff) + 2);
+      default:
+	 return debug(stream, "blit command", (cmd & 0xff) + 2);
+      }
+      break;
+   case 0x3:
+      switch ((cmd >> 24) & 0x1f) {	 
+      case 0x6:
+	 return debug(stream, "3DSTATE_ANTI_ALIASING", 1);
+      case 0x7:
+	 return debug(stream, "3DSTATE_RASTERIZATION_RULES", 1);
+      case 0x8:
+	 return debug(stream, "3DSTATE_BACKFACE_STENCIL_OPS", 2);
+      case 0x9:
+	 return debug(stream, "3DSTATE_BACKFACE_STENCIL_MASKS", 1);
+      case 0xb:
+	 return debug(stream, "3DSTATE_INDEPENDENT_ALPHA_BLEND", 1);
+      case 0xc:
+	 return debug(stream, "3DSTATE_MODES5", 1);	 
+      case 0xd:
+	 return debug(stream, "3DSTATE_MODES4", 1);
+      case 0x15:
+	 return debug(stream, "3DSTATE_FOG_COLOR", 1);
+      case 0x16:
+	 return debug(stream, "3DSTATE_COORD_SET_BINDINGS", 1);
+      case 0x1c:
+	 /* 3DState16NP */
+	 switch((cmd >> 19) & 0x1f) {
+	 case 0x10:
+	    return debug(stream, "3DSTATE_SCISSOR_ENABLE", 1);
+	 case 0x11:
+	    return debug(stream, "3DSTATE_DEPTH_SUBRECTANGLE_DISABLE", 1);
+	 default:
+	    break;
+	 }
+	 break;
+      case 0x1d:
+	 /* 3DStateMW */
+	 switch ((cmd >> 16) & 0xff) {
+	 case 0x0:
+	    return debug(stream, "3DSTATE_MAP_STATE", (cmd & 0x1f) + 2);
+	 case 0x1:
+	    return debug(stream, "3DSTATE_SAMPLER_STATE", (cmd & 0x1f) + 2);
+	 case 0x4:
+	    return debug_load_immediate(stream, "3DSTATE_LOAD_STATE_IMMEDIATE", (cmd & 0xf) + 2);
+	 case 0x5:
+	    return debug_program(stream, "3DSTATE_PIXEL_SHADER_PROGRAM", (cmd & 0x1ff) + 2);
+	 case 0x6:
+	    return debug(stream, "3DSTATE_PIXEL_SHADER_CONSTANTS", (cmd & 0xff) + 2);
+	 case 0x7:
+	    return debug_load_indirect(stream, "3DSTATE_LOAD_INDIRECT", (cmd & 0xff) + 2);
+	 case 0x80:
+	    return debug(stream, "3DSTATE_DRAWING_RECTANGLE", (cmd & 0xffff) + 2);
+	 case 0x81:
+	    return debug(stream, "3DSTATE_SCISSOR_RECTANGLE", (cmd & 0xffff) + 2);
+	 case 0x83:
+	    return debug(stream, "3DSTATE_SPAN_STIPPLE", (cmd & 0xffff) + 2);
+	 case 0x85:
+	    return debug(stream, "3DSTATE_DEST_BUFFER_VARS", (cmd & 0xffff) + 2);
+	 case 0x88:
+	    return debug(stream, "3DSTATE_CONSTANT_BLEND_COLOR", (cmd & 0xffff) + 2);
+	 case 0x89:
+	    return debug(stream, "3DSTATE_FOG_MODE", (cmd & 0xffff) + 2);
+	 case 0x8e:
+	    return debug(stream, "3DSTATE_BUFFER_INFO", (cmd & 0xffff) + 2);
+	 case 0x97:
+	    return debug(stream, "3DSTATE_DEPTH_OFFSET_SCALE", (cmd & 0xffff) + 2);
+	 case 0x98:
+	    return debug(stream, "3DSTATE_DEFAULT_Z", (cmd & 0xffff) + 2);
+	 case 0x99:
+	    return debug(stream, "3DSTATE_DEFAULT_DIFFUSE", (cmd & 0xffff) + 2);
+	 case 0x9a:
+	    return debug(stream, "3DSTATE_DEFAULT_SPECULAR", (cmd & 0xffff) + 2);
+	 case 0x9c:
+	    return debug(stream, "3DSTATE_CLEAR_PARAMETERS", (cmd & 0xffff) + 2);
+	 default:
+	    assert(0);
+	    return 0;
+	 }
+	 break;
+      case 0x1e:
+	 if (cmd & (1 << 23))
+	    return debug(stream, "???", (cmd & 0xffff) + 1);
+	 else
+	    return debug(stream, "", 1);
+	 break;
+      case 0x1f:
+	 if ((cmd & (1 << 23)) == 0)	
+	    return debug_prim(stream, "3DPRIM (inline)", 1, (cmd & 0x1ffff) + 2);
+	 else if (cmd & (1 << 17)) 
+	 {
+	    if ((cmd & 0xffff) == 0)
+	       return debug_variable_length_prim(stream);
+	    else
+	       return debug_prim(stream, "3DPRIM (indexed)", 0, (((cmd & 0xffff) + 1) / 2) + 1);
+	 }
+	 else
+	    return debug_prim(stream, "3DPRIM  (indirect sequential)", 0, 2); 
+	 break;
+      default:
+	 return debug(stream, "", 0);
+      }
+   default:
+      assert(0);
+      return 0;
+   }
+
+   assert(0);
+   return 0;
 }
 
 
+
 void
-i915_disassemble_program(const unsigned * program, unsigned sz)
+i915_dump_batchbuffer( struct i915_context *i915,
+		       GLuint *start,
+		       GLuint *end )
 {
-   unsigned size = program[0] & 0x1ff;
-   unsigned i;
+   struct debug_stream stream;
+   GLuint bytes = (end - start) * 4;
+   GLboolean done = GL_FALSE;
 
-   fprintf(stderr, "BEGIN\n");
+   fprintf(stderr, "\n\nBATCH: (%d)\n", bytes / 4);
 
-   if (size + 2 != sz) {
-      fprintf(stderr, "%s: program size mismatch %d/%d\n", __FUNCTION__,
-              size + 2, sz);
-      assert(0);
-   }
+   stream.offset = 0;
+   stream.ptr = (char *)start;
+   stream.print_addresses = 0;
 
-   program++;
-   for (i = 1; i < sz; i += 3, program += 3) {
-      unsigned opcode = program[0] & (0x1f << 24);
+   while (!done &&
+	  stream.offset < bytes &&
+	  stream.offset >= 0)
+   {
+      if (!i915_debug_packet( &stream ))
+	 break;
 
-      if ((unsigned) opcode >= A0_NOP && opcode <= A0_SLT)
-         print_arith_op(opcode >> 24, program);
-      else if (opcode >= T0_TEXLD && opcode <= T0_TEXKILL)
-         print_tex_op(opcode >> 24, program);
-      else if (opcode == D0_DCL)
-         print_dcl_op(opcode >> 24, program);
-      else
-         fprintf(stderr, "Unknown opcode 0x%x\n", opcode);
+      assert(stream.offset <= bytes &&
+	     stream.offset >= 0);
    }
 
-   fprintf(stderr, "END\n\n");
+   fprintf(stderr, "END-BATCH\n\n\n");
 }
+
+
diff --git a/src/mesa/pipe/i915simple/i915_debug.h b/src/mesa/pipe/i915simple/i915_debug.h
index 47a02401eee..3e01db64342 100644
--- a/src/mesa/pipe/i915simple/i915_debug.h
+++ b/src/mesa/pipe/i915simple/i915_debug.h
@@ -31,9 +31,26 @@
 #ifndef I915_DEBUG_H
 #define I915_DEBUG_H
 
+struct i915_context;
+
+struct debug_stream 
+{
+   unsigned offset;		/* current gtt offset */
+   char *ptr;		/* pointer to gtt offset zero */
+   char *end;		/* pointer to gtt offset zero */
+   unsigned print_addresses;
+};
+
+
 
 extern void i915_disassemble_program(const unsigned *program, unsigned sz);
 extern void i915_print_ureg(const char *msg, unsigned ureg);
 
 
+void
+i915_dump_batchbuffer( struct i915_context *i915,
+		       unsigned *start,
+		       unsigned *end );
+
+
 #endif
diff --git a/src/mesa/pipe/i915simple/i915_debug_fp.c b/src/mesa/pipe/i915simple/i915_debug_fp.c
new file mode 100644
index 00000000000..f4e8ae95ade
--- /dev/null
+++ b/src/mesa/pipe/i915simple/i915_debug_fp.c
@@ -0,0 +1,331 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include <stdio.h>
+
+#include "i915_reg.h"
+#include "i915_debug.h"
+//#include "i915_fpc.h"
+#include "shader/program.h"
+#include "shader/prog_instruction.h"
+#include "shader/prog_print.h"
+
+static const char *opcodes[0x20] = {
+   "NOP",
+   "ADD",
+   "MOV",
+   "MUL",
+   "MAD",
+   "DP2ADD",
+   "DP3",
+   "DP4",
+   "FRC",
+   "RCP",
+   "RSQ",
+   "EXP",
+   "LOG",
+   "CMP",
+   "MIN",
+   "MAX",
+   "FLR",
+   "MOD",
+   "TRC",
+   "SGE",
+   "SLT",
+   "TEXLD",
+   "TEXLDP",
+   "TEXLDB",
+   "TEXKILL",
+   "DCL",
+   "0x1a",
+   "0x1b",
+   "0x1c",
+   "0x1d",
+   "0x1e",
+   "0x1f",
+};
+
+
+static const int args[0x20] = {
+   0,                           /* 0 nop */
+   2,                           /* 1 add */
+   1,                           /* 2 mov */
+   2,                           /* 3 m ul */
+   3,                           /* 4 mad */
+   3,                           /* 5 dp2add */
+   2,                           /* 6 dp3 */
+   2,                           /* 7 dp4 */
+   1,                           /* 8 frc */
+   1,                           /* 9 rcp */
+   1,                           /* a rsq */
+   1,                           /* b exp */
+   1,                           /* c log */
+   3,                           /* d cmp */
+   2,                           /* e min */
+   2,                           /* f max */
+   1,                           /* 10 flr */
+   1,                           /* 11 mod */
+   1,                           /* 12 trc */
+   2,                           /* 13 sge */
+   2,                           /* 14 slt */
+   1,
+   1,
+   1,
+   1,
+   0,
+   0,
+   0,
+   0,
+   0,
+   0,
+   0,
+};
+
+
+static const char *regname[0x8] = {
+   "R",
+   "T",
+   "CONST",
+   "S",
+   "OC",
+   "OD",
+   "U",
+   "UNKNOWN",
+};
+
+static void
+print_reg_type_nr(GLuint type, GLuint nr)
+{
+   switch (type) {
+   case REG_TYPE_T:
+      switch (nr) {
+      case T_DIFFUSE:
+         _mesa_printf("T_DIFFUSE");
+         return;
+      case T_SPECULAR:
+         _mesa_printf("T_SPECULAR");
+         return;
+      case T_FOG_W:
+         _mesa_printf("T_FOG_W");
+         return;
+      default:
+         _mesa_printf("T_TEX%d", nr);
+         return;
+      }
+   case REG_TYPE_OC:
+      if (nr == 0) {
+         _mesa_printf("oC");
+         return;
+      }
+      break;
+   case REG_TYPE_OD:
+      if (nr == 0) {
+         _mesa_printf("oD");
+         return;
+      }
+      break;
+   default:
+      break;
+   }
+
+   _mesa_printf("%s[%d]", regname[type], nr);
+}
+
+#define REG_SWIZZLE_MASK 0x7777
+#define REG_NEGATE_MASK 0x8888
+
+#define REG_SWIZZLE_XYZW ((SRC_X << A2_SRC2_CHANNEL_X_SHIFT) |	\
+		      (SRC_Y << A2_SRC2_CHANNEL_Y_SHIFT) |	\
+		      (SRC_Z << A2_SRC2_CHANNEL_Z_SHIFT) |	\
+		      (SRC_W << A2_SRC2_CHANNEL_W_SHIFT))
+
+
+static void
+print_reg_neg_swizzle(GLuint reg)
+{
+   int i;
+
+   if ((reg & REG_SWIZZLE_MASK) == REG_SWIZZLE_XYZW &&
+       (reg & REG_NEGATE_MASK) == 0)
+      return;
+
+   _mesa_printf(".");
+
+   for (i = 3; i >= 0; i--) {
+      if (reg & (1 << ((i * 4) + 3)))
+         _mesa_printf("-");
+
+      switch ((reg >> (i * 4)) & 0x7) {
+      case 0:
+         _mesa_printf("x");
+         break;
+      case 1:
+         _mesa_printf("y");
+         break;
+      case 2:
+         _mesa_printf("z");
+         break;
+      case 3:
+         _mesa_printf("w");
+         break;
+      case 4:
+         _mesa_printf("0");
+         break;
+      case 5:
+         _mesa_printf("1");
+         break;
+      default:
+         _mesa_printf("?");
+         break;
+      }
+   }
+}
+
+
+static void
+print_src_reg(GLuint dword)
+{
+   GLuint nr = (dword >> A2_SRC2_NR_SHIFT) & REG_NR_MASK;
+   GLuint type = (dword >> A2_SRC2_TYPE_SHIFT) & REG_TYPE_MASK;
+   print_reg_type_nr(type, nr);
+   print_reg_neg_swizzle(dword);
+}
+
+
+static void
+print_dest_reg(GLuint dword)
+{
+   GLuint nr = (dword >> A0_DEST_NR_SHIFT) & REG_NR_MASK;
+   GLuint type = (dword >> A0_DEST_TYPE_SHIFT) & REG_TYPE_MASK;
+   print_reg_type_nr(type, nr);
+   if ((dword & A0_DEST_CHANNEL_ALL) == A0_DEST_CHANNEL_ALL)
+      return;
+   _mesa_printf(".");
+   if (dword & A0_DEST_CHANNEL_X)
+      _mesa_printf("x");
+   if (dword & A0_DEST_CHANNEL_Y)
+      _mesa_printf("y");
+   if (dword & A0_DEST_CHANNEL_Z)
+      _mesa_printf("z");
+   if (dword & A0_DEST_CHANNEL_W)
+      _mesa_printf("w");
+}
+
+
+#define GET_SRC0_REG(r0, r1) ((r0<<14)|(r1>>A1_SRC0_CHANNEL_W_SHIFT))
+#define GET_SRC1_REG(r0, r1) ((r0<<8)|(r1>>A2_SRC1_CHANNEL_W_SHIFT))
+#define GET_SRC2_REG(r)      (r)
+
+
+static void
+print_arith_op(GLuint opcode, const GLuint * program)
+{
+   if (opcode != A0_NOP) {
+      print_dest_reg(program[0]);
+      if (program[0] & A0_DEST_SATURATE)
+         _mesa_printf(" = SATURATE ");
+      else
+         _mesa_printf(" = ");
+   }
+
+   _mesa_printf("%s ", opcodes[opcode]);
+
+   print_src_reg(GET_SRC0_REG(program[0], program[1]));
+   if (args[opcode] == 1) {
+      _mesa_printf("\n");
+      return;
+   }
+
+   _mesa_printf(", ");
+   print_src_reg(GET_SRC1_REG(program[1], program[2]));
+   if (args[opcode] == 2) {
+      _mesa_printf("\n");
+      return;
+   }
+
+   _mesa_printf(", ");
+   print_src_reg(GET_SRC2_REG(program[2]));
+   _mesa_printf("\n");
+   return;
+}
+
+
+static void
+print_tex_op(GLuint opcode, const GLuint * program)
+{
+   print_dest_reg(program[0] | A0_DEST_CHANNEL_ALL);
+   _mesa_printf(" = ");
+
+   _mesa_printf("%s ", opcodes[opcode]);
+
+   _mesa_printf("S[%d],", program[0] & T0_SAMPLER_NR_MASK);
+
+   print_reg_type_nr((program[1] >> T1_ADDRESS_REG_TYPE_SHIFT) &
+                     REG_TYPE_MASK,
+                     (program[1] >> T1_ADDRESS_REG_NR_SHIFT) & REG_NR_MASK);
+   _mesa_printf("\n");
+}
+
+static void
+print_dcl_op(GLuint opcode, const GLuint * program)
+{
+   _mesa_printf("%s ", opcodes[opcode]);
+   print_dest_reg(program[0] | A0_DEST_CHANNEL_ALL);
+   _mesa_printf("\n");
+}
+
+
+void
+i915_disassemble_program(const GLuint * program, GLuint sz)
+{
+   GLuint size = program[0] & 0x1ff;
+   GLint i;
+
+   _mesa_printf("\t\tBEGIN\n");
+
+   assert(size + 2 == sz);
+
+   program++;
+   for (i = 1; i < sz; i += 3, program += 3) {
+      GLuint opcode = program[0] & (0x1f << 24);
+
+      _mesa_printf("\t\t");
+
+      if ((GLint) opcode >= A0_NOP && opcode <= A0_SLT)
+         print_arith_op(opcode >> 24, program);
+      else if (opcode >= T0_TEXLD && opcode <= T0_TEXKILL)
+         print_tex_op(opcode >> 24, program);
+      else if (opcode == D0_DCL)
+         print_dcl_op(opcode >> 24, program);
+      else
+         _mesa_printf("Unknown opcode 0x%x\n", opcode);
+   }
+
+   _mesa_printf("\t\tEND\n\n");
+}
+
+