/**************************************************************************
 * 
 * Copyright 2007 VMware, Inc.
 * 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 VMWARE 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 "main/context.h"
#include "main/debug_output.h"
#include "program/prog_print.h"

#include "pipe/p_state.h"
#include "pipe/p_shader_tokens.h"
#include "tgsi/tgsi_dump.h"

#include "cso_cache/cso_cache.h"

#include "st_context.h"
#include "st_debug.h"
#include "st_program.h"



int ST_DEBUG = 0;

static const struct debug_named_value st_debug_flags[] = {
   { "mesa",     DEBUG_MESA, NULL },
   { "tgsi",     DEBUG_TGSI, NULL },
   { "constants",DEBUG_CONSTANTS, NULL },
   { "pipe",     DEBUG_PIPE, NULL },
   { "tex",      DEBUG_TEX, NULL },
   { "fallback", DEBUG_FALLBACK, NULL },
   { "screen",   DEBUG_SCREEN, NULL },
   { "query",    DEBUG_QUERY, NULL },
   { "draw",     DEBUG_DRAW, NULL },
   { "buffer",   DEBUG_BUFFER, NULL },
   { "wf",       DEBUG_WIREFRAME, NULL },
   { "precompile",  DEBUG_PRECOMPILE, NULL },
   { "gremedy",  DEBUG_GREMEDY, "Enable GREMEDY debug extensions" },
   { "noreadpixcache", DEBUG_NOREADPIXCACHE, NULL },
   DEBUG_NAMED_VALUE_END
};

DEBUG_GET_ONCE_FLAGS_OPTION(st_debug, "ST_DEBUG", st_debug_flags, 0)


void
st_debug_init(void)
{
   ST_DEBUG = debug_get_option_st_debug();
}



/**
 * Print current state.  May be called from inside gdb to see currently
 * bound vertex/fragment shaders and associated constants.
 */
void
st_print_current(void)
{
   GET_CURRENT_CONTEXT(ctx);
   struct st_context *st = st_context(ctx);

#if 0
   int i;

   printf("Vertex Transform Inputs:\n");
   for (i = 0; i < st->vp->state.num_inputs; i++) {
      printf("  Slot %d:  VERT_ATTRIB_%d\n", i, st->vp->index_to_input[i]);
   }
#endif

   if (st->vp->variants)
      tgsi_dump(st->vp->variants[0].tokens, 0);
   if (st->vp->Base.Parameters)
      _mesa_print_parameter_list(st->vp->Base.Parameters);

   tgsi_dump(st->fp->state.tokens, 0);
   if (st->fp->Base.Parameters)
      _mesa_print_parameter_list(st->fp->Base.Parameters);
}


/**
 * Installed as pipe_debug_callback when GL_DEBUG_OUTPUT is enabled.
 */
static void
st_debug_message(void *data,
                 unsigned *id,
                 enum pipe_debug_type ptype,
                 const char *fmt,
                 va_list args)
{
   struct st_context *st = data;
   enum mesa_debug_source source;
   enum mesa_debug_type type;
   enum mesa_debug_severity severity;

   switch (ptype) {
   case PIPE_DEBUG_TYPE_OUT_OF_MEMORY:
      source = MESA_DEBUG_SOURCE_API;
      type = MESA_DEBUG_TYPE_ERROR;
      severity = MESA_DEBUG_SEVERITY_MEDIUM;
      break;
   case PIPE_DEBUG_TYPE_ERROR:
      source = MESA_DEBUG_SOURCE_API;
      type = MESA_DEBUG_TYPE_ERROR;
      severity = MESA_DEBUG_SEVERITY_MEDIUM;
      break;
   case PIPE_DEBUG_TYPE_SHADER_INFO:
      source = MESA_DEBUG_SOURCE_SHADER_COMPILER;
      type = MESA_DEBUG_TYPE_OTHER;
      severity = MESA_DEBUG_SEVERITY_NOTIFICATION;
      break;
   case PIPE_DEBUG_TYPE_PERF_INFO:
      source = MESA_DEBUG_SOURCE_API;
      type = MESA_DEBUG_TYPE_PERFORMANCE;
      severity = MESA_DEBUG_SEVERITY_NOTIFICATION;
      break;
   case PIPE_DEBUG_TYPE_INFO:
      source = MESA_DEBUG_SOURCE_API;
      type = MESA_DEBUG_TYPE_OTHER;
      severity = MESA_DEBUG_SEVERITY_NOTIFICATION;
      break;
   case PIPE_DEBUG_TYPE_FALLBACK:
      source = MESA_DEBUG_SOURCE_API;
      type = MESA_DEBUG_TYPE_PERFORMANCE;
      severity = MESA_DEBUG_SEVERITY_NOTIFICATION;
      break;
   case PIPE_DEBUG_TYPE_CONFORMANCE:
      source = MESA_DEBUG_SOURCE_API;
      type = MESA_DEBUG_TYPE_OTHER;
      severity = MESA_DEBUG_SEVERITY_NOTIFICATION;
      break;
   default:
      unreachable("invalid debug type");
   }
   _mesa_gl_vdebugf(st->ctx, id, source, type, severity, fmt, args);
}

void
st_update_debug_callback(struct st_context *st)
{
   struct pipe_context *pipe = st->pipe;

   if (!pipe->set_debug_callback)
      return;

   if (_mesa_get_debug_state_int(st->ctx, GL_DEBUG_OUTPUT)) {
      struct pipe_debug_callback cb;
      memset(&cb, 0, sizeof(cb));
      cb.async = !_mesa_get_debug_state_int(st->ctx, GL_DEBUG_OUTPUT_SYNCHRONOUS);
      cb.debug_message = st_debug_message;
      cb.data = st;
      pipe->set_debug_callback(pipe, &cb);
   } else {
      pipe->set_debug_callback(pipe, NULL);
   }
}