/*
 * Mesa 3-D graphics library
 * Version:  6.5
 *
 * Copyright (C) 1999-2005  Brian Paul   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, sublicense,
 * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * BRIAN PAUL 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 "mtypes.h"
#include "context.h"
#include "imports.h"
#include "debug.h"
#include "get.h"

/**
 * Primitive names
 */
const char *_mesa_prim_name[GL_POLYGON+4] = {
   "GL_POINTS",
   "GL_LINES",
   "GL_LINE_LOOP",
   "GL_LINE_STRIP",
   "GL_TRIANGLES",
   "GL_TRIANGLE_STRIP",
   "GL_TRIANGLE_FAN",
   "GL_QUADS",
   "GL_QUAD_STRIP",
   "GL_POLYGON",
   "outside begin/end",
   "inside unkown primitive",
   "unknown state"
};

void
_mesa_print_state( const char *msg, GLuint state )
{
   _mesa_debug(NULL,
	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
	   msg,
	   state,
	   (state & _NEW_MODELVIEW)       ? "ctx->ModelView, " : "",
	   (state & _NEW_PROJECTION)      ? "ctx->Projection, " : "",
	   (state & _NEW_TEXTURE_MATRIX)  ? "ctx->TextureMatrix, " : "",
	   (state & _NEW_COLOR_MATRIX)    ? "ctx->ColorMatrix, " : "",
	   (state & _NEW_ACCUM)           ? "ctx->Accum, " : "",
	   (state & _NEW_COLOR)           ? "ctx->Color, " : "",
	   (state & _NEW_DEPTH)           ? "ctx->Depth, " : "",
	   (state & _NEW_EVAL)            ? "ctx->Eval/EvalMap, " : "",
	   (state & _NEW_FOG)             ? "ctx->Fog, " : "",
	   (state & _NEW_HINT)            ? "ctx->Hint, " : "",
	   (state & _NEW_LIGHT)           ? "ctx->Light, " : "",
	   (state & _NEW_LINE)            ? "ctx->Line, " : "",
	   (state & _NEW_PIXEL)           ? "ctx->Pixel, " : "",
	   (state & _NEW_POINT)           ? "ctx->Point, " : "",
	   (state & _NEW_POLYGON)         ? "ctx->Polygon, " : "",
	   (state & _NEW_POLYGONSTIPPLE)  ? "ctx->PolygonStipple, " : "",
	   (state & _NEW_SCISSOR)         ? "ctx->Scissor, " : "",
	   (state & _NEW_TEXTURE)         ? "ctx->Texture, " : "",
	   (state & _NEW_TRANSFORM)       ? "ctx->Transform, " : "",
	   (state & _NEW_VIEWPORT)        ? "ctx->Viewport, " : "",
	   (state & _NEW_PACKUNPACK)      ? "ctx->Pack/Unpack, " : "",
	   (state & _NEW_ARRAY)           ? "ctx->Array, " : "",
	   (state & _NEW_RENDERMODE)      ? "ctx->RenderMode, " : "",
	   (state & _NEW_BUFFERS)         ? "ctx->Visual, ctx->DrawBuffer,, " : "");
}


void
_mesa_print_tri_caps( const char *name, GLuint flags )
{
   _mesa_debug(NULL,
	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
	   name,
	   flags,
	   (flags & DD_FLATSHADE)           ? "flat-shade, " : "",
	   (flags & DD_SEPARATE_SPECULAR)   ? "separate-specular, " : "",
	   (flags & DD_TRI_LIGHT_TWOSIDE)   ? "tri-light-twoside, " : "",
	   (flags & DD_TRI_TWOSTENCIL)      ? "tri-twostencil, " : "",
	   (flags & DD_TRI_UNFILLED)        ? "tri-unfilled, " : "",
	   (flags & DD_TRI_STIPPLE)         ? "tri-stipple, " : "",
	   (flags & DD_TRI_OFFSET)          ? "tri-offset, " : "",
	   (flags & DD_TRI_SMOOTH)          ? "tri-smooth, " : "",
	   (flags & DD_LINE_SMOOTH)         ? "line-smooth, " : "",
	   (flags & DD_LINE_STIPPLE)        ? "line-stipple, " : "",
	   (flags & DD_LINE_WIDTH)          ? "line-wide, " : "",
	   (flags & DD_POINT_SMOOTH)        ? "point-smooth, " : "",
	   (flags & DD_POINT_SIZE)          ? "point-size, " : "",
	   (flags & DD_POINT_ATTEN)         ? "point-atten, " : "",
	   (flags & DD_TRI_CULL_FRONT_BACK) ? "cull-all, " : ""
      );
}


/**
 * Print information about this Mesa version and build options.
 */
void _mesa_print_info( void )
{
   _mesa_debug(NULL, "Mesa GL_VERSION = %s\n",
	   (char *) _mesa_GetString(GL_VERSION));
   _mesa_debug(NULL, "Mesa GL_RENDERER = %s\n",
	   (char *) _mesa_GetString(GL_RENDERER));
   _mesa_debug(NULL, "Mesa GL_VENDOR = %s\n",
	   (char *) _mesa_GetString(GL_VENDOR));
   _mesa_debug(NULL, "Mesa GL_EXTENSIONS = %s\n",
	   (char *) _mesa_GetString(GL_EXTENSIONS));
#if defined(THREADS)
   _mesa_debug(NULL, "Mesa thread-safe: YES\n");
#else
   _mesa_debug(NULL, "Mesa thread-safe: NO\n");
#endif
#if defined(USE_X86_ASM)
   _mesa_debug(NULL, "Mesa x86-optimized: YES\n");
#else
   _mesa_debug(NULL, "Mesa x86-optimized: NO\n");
#endif
#if defined(USE_SPARC_ASM)
   _mesa_debug(NULL, "Mesa sparc-optimized: YES\n");
#else
   _mesa_debug(NULL, "Mesa sparc-optimized: NO\n");
#endif
}


/**
 * Set the debugging flags.
 *
 * \param debug debug string
 *
 * If compiled with debugging support then search for keywords in \p debug and
 * enables the verbose debug output of the respective feature.
 */
static void add_debug_flags( const char *debug )
{
#ifdef DEBUG
   if (_mesa_strstr(debug, "varray")) 
      MESA_VERBOSE |= VERBOSE_VARRAY;

   if (_mesa_strstr(debug, "tex")) 
      MESA_VERBOSE |= VERBOSE_TEXTURE;

   if (_mesa_strstr(debug, "imm")) 
      MESA_VERBOSE |= VERBOSE_IMMEDIATE;

   if (_mesa_strstr(debug, "pipe")) 
      MESA_VERBOSE |= VERBOSE_PIPELINE;

   if (_mesa_strstr(debug, "driver")) 
      MESA_VERBOSE |= VERBOSE_DRIVER;

   if (_mesa_strstr(debug, "state")) 
      MESA_VERBOSE |= VERBOSE_STATE;

   if (_mesa_strstr(debug, "api")) 
      MESA_VERBOSE |= VERBOSE_API;

   if (_mesa_strstr(debug, "list")) 
      MESA_VERBOSE |= VERBOSE_DISPLAY_LIST;

   if (_mesa_strstr(debug, "lighting")) 
      MESA_VERBOSE |= VERBOSE_LIGHTING;

   if (_mesa_strstr(debug, "disassem")) 
      MESA_VERBOSE |= VERBOSE_DISASSEM;
   
   /* Debug flag:
    */
   if (_mesa_strstr(debug, "flush")) 
      MESA_DEBUG_FLAGS |= DEBUG_ALWAYS_FLUSH;

#if defined(_FPU_GETCW) && defined(_FPU_SETCW)
   if (_mesa_strstr(debug, "fpexceptions")) {
      /* raise FP exceptions */
      fpu_control_t mask;
      _FPU_GETCW(mask);
      mask &= ~(_FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM
                | _FPU_MASK_OM | _FPU_MASK_UM);
      _FPU_SETCW(mask);
   }
#endif

#else
   (void) debug;
#endif
}


void 
_mesa_init_debug( GLcontext *ctx )
{
   char *c;

   /* Dither disable */
   ctx->NoDither = _mesa_getenv("MESA_NO_DITHER") ? GL_TRUE : GL_FALSE;
   if (ctx->NoDither) {
      if (_mesa_getenv("MESA_DEBUG")) {
         _mesa_debug(ctx, "MESA_NO_DITHER set - dithering disabled\n");
      }
      ctx->Color.DitherFlag = GL_FALSE;
   }

   c = _mesa_getenv("MESA_DEBUG");
   if (c)
      add_debug_flags(c);

   c = _mesa_getenv("MESA_VERBOSE");
   if (c)
      add_debug_flags(c);
}