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path: root/src/gallium/auxiliary/util/u_debug.c
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/**************************************************************************
 * 
 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
 * Copyright (c) 2008 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 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 "pipe/p_config.h" 

#include "pipe/p_compiler.h"
#include "os/os_stream.h"
#include "util/u_debug.h" 
#include "pipe/p_format.h" 
#include "pipe/p_state.h" 
#include "util/u_inlines.h" 
#include "util/u_format.h"
#include "util/u_memory.h" 
#include "util/u_string.h" 
#include "util/u_math.h" 
#include "util/u_tile.h" 
#include "util/u_prim.h"
#include "util/u_surface.h"

#include <limits.h> /* CHAR_BIT */
#include <ctype.h> /* isalnum */

void _debug_vprintf(const char *format, va_list ap)
{
#if defined(PIPE_OS_WINDOWS) || defined(PIPE_OS_EMBEDDED)
   /* We buffer until we find a newline. */
   static char buf[4096] = {'\0'};
   size_t len = strlen(buf);
   int ret = util_vsnprintf(buf + len, sizeof(buf) - len, format, ap);
   if(ret > (int)(sizeof(buf) - len - 1) || util_strchr(buf + len, '\n')) {
      os_log_message(buf);
      buf[0] = '\0';
   }
#else
   /* Just print as-is to stderr */
   vfprintf(stderr, format, ap);
#endif
}


#ifdef DEBUG
void debug_print_blob( const char *name,
                       const void *blob,
                       unsigned size )
{
   const unsigned *ublob = (const unsigned *)blob;
   unsigned i;

   debug_printf("%s (%d dwords%s)\n", name, size/4,
                size%4 ? "... plus a few bytes" : "");

   for (i = 0; i < size/4; i++) {
      debug_printf("%d:\t%08x\n", i, ublob[i]);
   }
}
#endif


static boolean
debug_get_option_should_print(void)
{
   static boolean first = TRUE;
   static boolean value = FALSE;

   if (!first)
      return value;

   /* Oh hey this will call into this function,
    * but its cool since we set first to false
    */
   first = FALSE;
   value = debug_get_bool_option("GALLIUM_PRINT_OPTIONS", FALSE);
   /* XXX should we print this option? Currently it wont */
   return value;
}

const char *
debug_get_option(const char *name, const char *dfault)
{
   const char *result;

   result = os_get_option(name);
   if(!result)
      result = dfault;

   if (debug_get_option_should_print())
      debug_printf("%s: %s = %s\n", __FUNCTION__, name, result ? result : "(null)");
   
   return result;
}

boolean
debug_get_bool_option(const char *name, boolean dfault)
{
   const char *str = os_get_option(name);
   boolean result;
   
   if(str == NULL)
      result = dfault;
   else if(!util_strcmp(str, "n"))
      result = FALSE;
   else if(!util_strcmp(str, "no"))
      result = FALSE;
   else if(!util_strcmp(str, "0"))
      result = FALSE;
   else if(!util_strcmp(str, "f"))
      result = FALSE;
   else if(!util_strcmp(str, "F"))
      result = FALSE;
   else if(!util_strcmp(str, "false"))
      result = FALSE;
   else if(!util_strcmp(str, "FALSE"))
      result = FALSE;
   else
      result = TRUE;

   if (debug_get_option_should_print())
      debug_printf("%s: %s = %s\n", __FUNCTION__, name, result ? "TRUE" : "FALSE");
   
   return result;
}


long
debug_get_num_option(const char *name, long dfault)
{
   long result;
   const char *str;
   
   str = os_get_option(name);
   if(!str)
      result = dfault;
   else {
      long sign;
      char c;
      c = *str++;
      if(c == '-') {
	 sign = -1;
	 c = *str++;
      } 
      else {
	 sign = 1;
      }
      result = 0;
      while('0' <= c && c <= '9') {
	 result = result*10 + (c - '0');
	 c = *str++;
      }
      result *= sign;
   }

   if (debug_get_option_should_print())
      debug_printf("%s: %s = %li\n", __FUNCTION__, name, result);

   return result;
}

static boolean str_has_option(const char *str, const char *name)
{
   /* Empty string. */
   if (!*str) {
      return FALSE;
   }

   /* OPTION=all */
   if (!util_strcmp(str, "all")) {
      return TRUE;
   }

   /* Find 'name' in 'str' surrounded by non-alphanumeric characters. */
   {
      const char *start = str;
      unsigned name_len = strlen(name);

      /* 'start' is the beginning of the currently-parsed word,
       * we increment 'str' each iteration.
       * if we find either the end of string or a non-alphanumeric character,
       * we compare 'start' up to 'str-1' with 'name'. */

      while (1) {
         if (!*str || !isalnum(*str)) {
            if (str-start == name_len &&
                !memcmp(start, name, name_len)) {
               return TRUE;
            }

            if (!*str) {
               return FALSE;
            }

            start = str+1;
         }

         str++;
      }
   }

   return FALSE;
}

unsigned long
debug_get_flags_option(const char *name, 
                       const struct debug_named_value *flags,
                       unsigned long dfault)
{
   unsigned long result;
   const char *str;
   const struct debug_named_value *orig = flags;
   int namealign = 0;
   
   str = os_get_option(name);
   if(!str)
      result = dfault;
   else if (!util_strcmp(str, "help")) {
      result = dfault;
      _debug_printf("%s: help for %s:\n", __FUNCTION__, name);
      for (; flags->name; ++flags)
         namealign = MAX2(namealign, strlen(flags->name));
      for (flags = orig; flags->name; ++flags)
         _debug_printf("| %*s [0x%0*lx]%s%s\n", namealign, flags->name,
                      (int)sizeof(unsigned long)*CHAR_BIT/4, flags->value,
                      flags->desc ? " " : "", flags->desc ? flags->desc : "");
   }
   else {
      result = 0;
      while( flags->name ) {
	 if (str_has_option(str, flags->name))
	    result |= flags->value;
	 ++flags;
      }
   }

   if (debug_get_option_should_print()) {
      if (str) {
         debug_printf("%s: %s = 0x%lx (%s)\n", __FUNCTION__, name, result, str);
      } else {
         debug_printf("%s: %s = 0x%lx\n", __FUNCTION__, name, result);
      }
   }

   return result;
}


void _debug_assert_fail(const char *expr, 
                        const char *file, 
                        unsigned line, 
                        const char *function) 
{
   _debug_printf("%s:%u:%s: Assertion `%s' failed.\n", file, line, function, expr);
#if defined(PIPE_OS_WINDOWS) && !defined(PIPE_SUBSYSTEM_WINDOWS_USER)
   if (debug_get_bool_option("GALLIUM_ABORT_ON_ASSERT", FALSE))
#else
   if (debug_get_bool_option("GALLIUM_ABORT_ON_ASSERT", TRUE))
#endif
      os_abort();
   else
      _debug_printf("continuing...\n");
}


const char *
debug_dump_enum(const struct debug_named_value *names, 
                unsigned long value)
{
   static char rest[64];
   
   while(names->name) {
      if(names->value == value)
	 return names->name;
      ++names;
   }

   util_snprintf(rest, sizeof(rest), "0x%08lx", value);
   return rest;
}


const char *
debug_dump_enum_noprefix(const struct debug_named_value *names, 
                         const char *prefix,
                         unsigned long value)
{
   static char rest[64];
   
   while(names->name) {
      if(names->value == value) {
         const char *name = names->name;
         while (*name == *prefix) {
            name++;
            prefix++;
         }
         return name;
      }
      ++names;
   }

   

   util_snprintf(rest, sizeof(rest), "0x%08lx", value);
   return rest;
}


const char *
debug_dump_flags(const struct debug_named_value *names, 
                 unsigned long value)
{
   static char output[4096];
   static char rest[256];
   int first = 1;

   output[0] = '\0';

   while(names->name) {
      if((names->value & value) == names->value) {
	 if (!first)
	    util_strncat(output, "|", sizeof(output));
	 else
	    first = 0;
	 util_strncat(output, names->name, sizeof(output) - 1);
	 output[sizeof(output) - 1] = '\0';
	 value &= ~names->value;
      }
      ++names;
   }
   
   if (value) {
      if (!first)
	 util_strncat(output, "|", sizeof(output));
      else
	 first = 0;
      
      util_snprintf(rest, sizeof(rest), "0x%08lx", value);
      util_strncat(output, rest, sizeof(output) - 1);
      output[sizeof(output) - 1] = '\0';
   }
   
   if(first)
      return "0";
   
   return output;
}


#ifdef DEBUG
void debug_print_format(const char *msg, unsigned fmt )
{
   debug_printf("%s: %s\n", msg, util_format_name(fmt));
}
#endif



static const struct debug_named_value pipe_prim_names[] = {
#ifdef DEBUG
   DEBUG_NAMED_VALUE(PIPE_PRIM_POINTS),
   DEBUG_NAMED_VALUE(PIPE_PRIM_LINES),
   DEBUG_NAMED_VALUE(PIPE_PRIM_LINE_LOOP),
   DEBUG_NAMED_VALUE(PIPE_PRIM_LINE_STRIP),
   DEBUG_NAMED_VALUE(PIPE_PRIM_TRIANGLES),
   DEBUG_NAMED_VALUE(PIPE_PRIM_TRIANGLE_STRIP),
   DEBUG_NAMED_VALUE(PIPE_PRIM_TRIANGLE_FAN),
   DEBUG_NAMED_VALUE(PIPE_PRIM_QUADS),
   DEBUG_NAMED_VALUE(PIPE_PRIM_QUAD_STRIP),
   DEBUG_NAMED_VALUE(PIPE_PRIM_POLYGON),
#endif
   DEBUG_NAMED_VALUE_END
};


const char *u_prim_name( unsigned prim )
{
   return debug_dump_enum(pipe_prim_names, prim);
}



#ifdef DEBUG
int fl_indent = 0;
const char* fl_function[1024];

int debug_funclog_enter(const char* f, const int line, const char* file)
{
   int i;

   for (i = 0; i < fl_indent; i++)
      debug_printf("  ");
   debug_printf("%s\n", f);

   assert(fl_indent < 1023);
   fl_function[fl_indent++] = f;

   return 0;
}

void debug_funclog_exit(const char* f, const int line, const char* file)
{
   --fl_indent;
   assert(fl_indent >= 0);
   assert(fl_function[fl_indent] == f);
}

void debug_funclog_enter_exit(const char* f, const int line, const char* file)
{
   int i;
   for (i = 0; i < fl_indent; i++)
      debug_printf("  ");
   debug_printf("%s\n", f);
}
#endif



#ifdef DEBUG
/**
 * Dump an image to a .raw or .ppm file (depends on OS).
 * \param format  PIPE_FORMAT_x
 * \param cpp  bytes per pixel
 * \param width  width in pixels
 * \param height height in pixels
 * \param stride  row stride in bytes
 */
void debug_dump_image(const char *prefix,
                      unsigned format, unsigned cpp,
                      unsigned width, unsigned height,
                      unsigned stride,
                      const void *data)     
{
#ifdef PIPE_SUBSYSTEM_WINDOWS_DISPLAY
   static unsigned no = 0; 
   char filename[256];
   WCHAR wfilename[sizeof(filename)];
   ULONG_PTR iFile = 0;
   struct {
      unsigned format;
      unsigned cpp;
      unsigned width;
      unsigned height;
   } header;
   unsigned char *pMap = NULL;
   unsigned i;

   util_snprintf(filename, sizeof(filename), "\\??\\c:\\%03u%s.raw", ++no, prefix);
   for(i = 0; i < sizeof(filename); ++i)
      wfilename[i] = (WCHAR)filename[i];
   
   pMap = (unsigned char *)EngMapFile(wfilename, sizeof(header) + height*width*cpp, &iFile);
   if(!pMap)
      return;
   
   header.format = format;
   header.cpp = cpp;
   header.width = width;
   header.height = height;
   memcpy(pMap, &header, sizeof(header));
   pMap += sizeof(header);
   
   for(i = 0; i < height; ++i) {
      memcpy(pMap, (unsigned char *)data + stride*i, cpp*width);
      pMap += cpp*width;
   }
      
   EngUnmapFile(iFile);
#elif defined(PIPE_OS_UNIX)
   /* write a ppm file */
   char filename[256];
   FILE *f;

   util_snprintf(filename, sizeof(filename), "%s.ppm", prefix);

   f = fopen(filename, "w");
   if (f) {
      int i, x, y;
      int r, g, b;
      const uint8_t *ptr = (uint8_t *) data;

      /* XXX this is a hack */
      switch (format) {
      case PIPE_FORMAT_B8G8R8A8_UNORM:
         r = 2;
         g = 1;
         b = 0;
         break;
      default:
         r = 0;
         g = 1;
         b = 1;
      }

      fprintf(f, "P6\n");
      fprintf(f, "# ppm-file created by osdemo.c\n");
      fprintf(f, "%i %i\n", width, height);
      fprintf(f, "255\n");
      fclose(f);

      f = fopen(filename, "ab");  /* reopen in binary append mode */
      for (y = 0; y < height; y++) {
         for (x = 0; x < width; x++) {
            i = y * stride + x * cpp;
            fputc(ptr[i + r], f); /* write red */
            fputc(ptr[i + g], f); /* write green */
            fputc(ptr[i + b], f); /* write blue */
         }
      }
      fclose(f);
   }
   else {
      fprintf(stderr, "Can't open %s for writing\n", filename);
   }
#endif
}

/* FIXME: dump resources, not surfaces... */
void debug_dump_surface(struct pipe_context *pipe,
                        const char *prefix,
                        struct pipe_surface *surface)
{
   struct pipe_resource *texture;
   struct pipe_transfer *transfer;
   void *data;

   if (!surface)
      return;

   /* XXX: this doesn't necessarily work, as the driver may be using
    * temporary storage for the surface which hasn't been propagated
    * back into the texture.  Need to nail down the semantics of views
    * and transfers a bit better before we can say if extra work needs
    * to be done here:
    */
   texture = surface->texture;

   transfer = pipe_get_transfer(pipe, texture, surface->u.tex.level,
                                surface->u.tex.first_layer,
                                PIPE_TRANSFER_READ,
                                0, 0, surface->width, surface->height);

   data = pipe->transfer_map(pipe, transfer);
   if(!data)
      goto error;

   debug_dump_image(prefix,
                    texture->format,
                    util_format_get_blocksize(texture->format),
                    util_format_get_nblocksx(texture->format, surface->width),
                    util_format_get_nblocksy(texture->format, surface->height),
                    transfer->stride,
                    data);

   pipe->transfer_unmap(pipe, transfer);
error:
   pipe->transfer_destroy(pipe, transfer);
}


void debug_dump_texture(struct pipe_context *pipe,
                        const char *prefix,
                        struct pipe_resource *texture)
{
   struct pipe_surface *surface, surf_tmpl;

   if (!texture)
      return;

   /* XXX for now, just dump image for layer=0, level=0 */
   memset(&surf_tmpl, 0, sizeof(surf_tmpl));
   u_surface_default_template(&surf_tmpl, texture, 0 /* no bind flag - not a surface */);
   surface = pipe->create_surface(pipe, texture, &surf_tmpl);
   if (surface) {
      debug_dump_surface(pipe, prefix, surface);
      pipe->surface_destroy(pipe, surface);
   }
}


#pragma pack(push,2)
struct bmp_file_header {
   uint16_t bfType;
   uint32_t bfSize;
   uint16_t bfReserved1;
   uint16_t bfReserved2;
   uint32_t bfOffBits;
};
#pragma pack(pop)

struct bmp_info_header {
   uint32_t biSize;
   int32_t biWidth;
   int32_t biHeight;
   uint16_t biPlanes;
   uint16_t biBitCount;
   uint32_t biCompression;
   uint32_t biSizeImage;
   int32_t biXPelsPerMeter;
   int32_t biYPelsPerMeter;
   uint32_t biClrUsed;
   uint32_t biClrImportant;
};

struct bmp_rgb_quad {
   uint8_t rgbBlue;
   uint8_t rgbGreen;
   uint8_t rgbRed;
   uint8_t rgbAlpha;
};

void
debug_dump_surface_bmp(struct pipe_context *pipe,
                       const char *filename,
                       struct pipe_surface *surface)
{
#ifndef PIPE_SUBSYSTEM_WINDOWS_MINIPORT
   struct pipe_transfer *transfer;
   struct pipe_resource *texture = surface->texture;

   transfer = pipe_get_transfer(pipe, texture, surface->u.tex.level,
                                surface->u.tex.first_layer, PIPE_TRANSFER_READ,
                                0, 0, surface->width, surface->height);

   debug_dump_transfer_bmp(pipe, filename, transfer);

   pipe->transfer_destroy(pipe, transfer);
#endif
}

void
debug_dump_transfer_bmp(struct pipe_context *pipe,
                        const char *filename,
                        struct pipe_transfer *transfer)
{
#ifndef PIPE_SUBSYSTEM_WINDOWS_MINIPORT
   float *rgba;

   if (!transfer)
      goto error1;

   rgba = MALLOC(transfer->box.width *
		 transfer->box.height *
		 transfer->box.depth *
		 4*sizeof(float));
   if(!rgba)
      goto error1;

   pipe_get_tile_rgba(pipe, transfer, 0, 0,
                      transfer->box.width, transfer->box.height,
                      rgba);

   debug_dump_float_rgba_bmp(filename,
                             transfer->box.width, transfer->box.height,
                             rgba, transfer->box.width);

   FREE(rgba);
error1:
   ;
#endif
}

void
debug_dump_float_rgba_bmp(const char *filename,
                          unsigned width, unsigned height,
                          float *rgba, unsigned stride)
{
#ifndef PIPE_SUBSYSTEM_WINDOWS_MINIPORT
   struct os_stream *stream;
   struct bmp_file_header bmfh;
   struct bmp_info_header bmih;
   unsigned x, y;

   if(!rgba)
      goto error1;

   bmfh.bfType = 0x4d42;
   bmfh.bfSize = 14 + 40 + height*width*4;
   bmfh.bfReserved1 = 0;
   bmfh.bfReserved2 = 0;
   bmfh.bfOffBits = 14 + 40;

   bmih.biSize = 40;
   bmih.biWidth = width;
   bmih.biHeight = height;
   bmih.biPlanes = 1;
   bmih.biBitCount = 32;
   bmih.biCompression = 0;
   bmih.biSizeImage = height*width*4;
   bmih.biXPelsPerMeter = 0;
   bmih.biYPelsPerMeter = 0;
   bmih.biClrUsed = 0;
   bmih.biClrImportant = 0;

   stream = os_file_stream_create(filename);
   if(!stream)
      goto error1;

   os_stream_write(stream, &bmfh, 14);
   os_stream_write(stream, &bmih, 40);

   y = height;
   while(y--) {
      float *ptr = rgba + (stride * y * 4);
      for(x = 0; x < width; ++x)
      {
         struct bmp_rgb_quad pixel;
         pixel.rgbRed   = float_to_ubyte(ptr[x*4 + 0]);
         pixel.rgbGreen = float_to_ubyte(ptr[x*4 + 1]);
         pixel.rgbBlue  = float_to_ubyte(ptr[x*4 + 2]);
         pixel.rgbAlpha = 255;
         os_stream_write(stream, &pixel, 4);
      }
   }

   os_stream_close(stream);
error1:
   ;
#endif
}

#endif