/* GStreamer

 *

 * unit test for ffmpegcolorspace

 *

 * Copyright (C) <2006> Tim-Philipp Müller <tim centricular net>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#ifdef HAVE_VALGRIND

# include <valgrind/valgrind.h>

#endif

#include <unistd.h>

#include <gst/check/gstcheck.h>

#include <gst/gst_global.h>

#include <unistd.h>

#include <gstcheck.h>

#define LOG_FILE "c:\\logs\\ffmpegcolorspace_logs.txt" 

#include "std_log_result.h" 

#define LOG_FILENAME_LINE __FILE__, __LINE__

void create_xml(int result)

{

    if(result)

    {

        assert_failed = 1;

    } 

    testResultXml(xmlfile);

    close_log_file();

    if(result)

    {

        exit (-1);

    }    

}

typedef struct _RGBFormat

{

  const gchar *nick;

  guint bpp, depth;

  guint32 red_mask, green_mask, blue_mask, alpha_mask;

  guint endianness;

} RGBFormat;

typedef struct _RGBConversion

{

  RGBFormat from_fmt;

  RGBFormat to_fmt;

  GstCaps *from_caps;

  GstCaps *to_caps;

} RGBConversion;

static GstCaps *

rgb_format_to_caps (RGBFormat * fmt)

{

  GstCaps *caps;

  g_assert (fmt != NULL);

  g_assert (fmt->endianness != 0);

  caps = gst_caps_new_simple ("video/x-raw-rgb",

      "bpp", G_TYPE_INT, fmt->bpp,

      "depth", G_TYPE_INT, fmt->depth,

      "red_mask", G_TYPE_INT, fmt->red_mask,

      "green_mask", G_TYPE_INT, fmt->green_mask,

      "blue_mask", G_TYPE_INT, fmt->blue_mask,

      "width", G_TYPE_INT, 16, "height", G_TYPE_INT, 16,

      "endianness", G_TYPE_INT, fmt->endianness,

      "framerate", GST_TYPE_FRACTION, 1, 1, NULL);

  fail_unless (fmt->alpha_mask == 0 || fmt->bpp == 32);

  if (fmt->alpha_mask != 0) {

    gst_structure_set (gst_caps_get_structure (caps, 0),

        "alpha_mask", G_TYPE_INT, fmt->alpha_mask, NULL);

  }

  return caps;

}

static GList *

create_rgb_conversions (void)

{

  const RGBFormat rgb_formats[] = {

    {

        "RGBA", 32, 32, 0xff000000, 0x00ff0000, 0x0000ff00, 0x000000ff, 0}, {

        "ARGB", 32, 32, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000, 0}, {

        "BGRA", 32, 32, 0x0000ff00, 0x00ff0000, 0xff000000, 0x000000ff, 0}, {

        "ABGR", 32, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000, 0}, {

        "RGBx", 32, 24, 0xff000000, 0x00ff0000, 0x0000ff00, 0x00000000, 0}, {

        "xRGB", 32, 24, 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000, 0}, {

        "BGRx", 32, 24, 0x0000ff00, 0x00ff0000, 0xff000000, 0x00000000, 0}, {

        "xBGR", 32, 24, 0x000000ff, 0x0000ff00, 0x00ff0000, 0x00000000, 0}, {

        "RGB ", 24, 24, 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000, 0}, {

        "BGR ", 24, 24, 0x000000ff, 0x0000ff00, 0x00ff0000, 0x00000000, 0}, {

        "RGB565", 16, 16, 0x0000f800, 0x000007e0, 0x0000001f, 0x00000000, 0}, {

        "xRGB1555", 16, 15, 0x00007c00, 0x000003e0, 0x0000001f, 0x0000000, 0}

  };

  const struct

  {

    guint from_endianness, to_endianness;

  } end_arr[4] = {

    {

    G_LITTLE_ENDIAN, G_LITTLE_ENDIAN}, {

    G_BIG_ENDIAN, G_LITTLE_ENDIAN}, {

    G_LITTLE_ENDIAN, G_BIG_ENDIAN}, {

    G_BIG_ENDIAN, G_BIG_ENDIAN}

  };

  GList *conversions = NULL;

  guint from_fmt, to_fmt;

  for (from_fmt = 0; from_fmt < G_N_ELEMENTS (rgb_formats); ++from_fmt) {

    for (to_fmt = 0; to_fmt < G_N_ELEMENTS (rgb_formats); ++to_fmt) {

      guint i;

      for (i = 0; i < 4; ++i) {

        RGBConversion *conversion;

        conversion = g_new0 (RGBConversion, 1);

        conversion->from_fmt = rgb_formats[from_fmt];

        conversion->to_fmt = rgb_formats[to_fmt];

        conversion->from_fmt.endianness = end_arr[i].from_endianness;

        conversion->to_fmt.endianness = end_arr[i].to_endianness;

        conversion->from_caps = rgb_format_to_caps (&conversion->from_fmt);

        conversion->to_caps = rgb_format_to_caps (&conversion->to_fmt);

        conversions = g_list_prepend (conversions, conversion);

      }

    }

  }

  return g_list_reverse (conversions);

}

static void

rgb_conversion_free (RGBConversion * conv)

{

  gst_caps_unref (conv->from_caps);

  gst_caps_unref (conv->to_caps);

  memset (conv, 0x99, sizeof (RGBConversion));

  g_free (conv);

}

static guint32

right_shift_colour (guint32 mask, guint32 pixel)

{

  if (mask == 0)

    return 0;

  pixel = pixel & mask;

  while ((mask & 0x01) == 0) {

    mask = mask >> 1;

    pixel = pixel >> 1;

  }

  return pixel;

}

static guint8

fix_expected_colour (guint32 col_mask, guint8 col_expected)

{

  guint32 mask;

  gint last = g_bit_nth_msf (col_mask, -1);

  gint first = g_bit_nth_lsf (col_mask, -1);

  mask = 1 << (last - first + 1);

  mask -= 1;

  g_assert (col_expected == 0x00 || col_expected == 0xff);

  /* this only works because we only check for all-bits-set or no-bits-set */

  return col_expected & mask;

}

static void

check_rgb_buf (const guint8 * pixels, guint32 r_mask, guint32 g_mask,

    guint32 b_mask, guint32 a_mask, guint8 r_expected, guint8 g_expected,

    guint8 b_expected, guint endianness, guint bpp, guint depth)

{

  guint32 pixel, red, green, blue, alpha;

  switch (bpp) {

    case 32:{

      if (endianness == G_LITTLE_ENDIAN)

        pixel = GST_READ_UINT32_LE (pixels);

      else

        pixel = GST_READ_UINT32_BE (pixels);

      break;

    }

    case 24:{

      if (endianness == G_BIG_ENDIAN) {

        pixel = (GST_READ_UINT8 (pixels) << 16) |

            (GST_READ_UINT8 (pixels + 1) << 8) |

            (GST_READ_UINT8 (pixels + 2) << 0);

      } else {

        pixel = (GST_READ_UINT8 (pixels + 2) << 16) |

            (GST_READ_UINT8 (pixels + 1) << 8) |

            (GST_READ_UINT8 (pixels + 0) << 0);

      }

      break;

    }

    case 16:{

      if (endianness == G_LITTLE_ENDIAN)

        pixel = GST_READ_UINT16_LE (pixels);

      else

        pixel = GST_READ_UINT16_BE (pixels);

      break;

    }

    default:

      g_return_if_reached ();

  }

  red = right_shift_colour (r_mask, pixel);

  green = right_shift_colour (g_mask, pixel);

  blue = right_shift_colour (b_mask, pixel);

  alpha = right_shift_colour (a_mask, pixel);

  /* can't enable this by default, valgrind will complain about accessing

   * uninitialised memory for the depth=24,bpp=32 formats ... */

  /* GST_LOG ("pixels: 0x%02x 0x%02x 0x%02x 0x%02x => pixel = 0x%08x",

     pixels[0], (guint) pixels[1], pixels[2], pixels[3], pixel); */

  /* fix up the mask (for rgb15/16) */

  if (bpp == 16) {

    r_expected = fix_expected_colour (r_mask, r_expected);

    g_expected = fix_expected_colour (g_mask, g_expected);

    b_expected = fix_expected_colour (b_mask, b_expected);

  }

  fail_unless (red == r_expected, "RED: expected 0x%02x, found 0x%02x    "

      "Bytes: 0x%02x 0x%02x 0x%02x 0x%02x    Pixel: 0x%08x", r_expected, red,

      pixels[0], pixels[1], pixels[2], pixels[3], pixel);

  fail_unless (green == g_expected, "GREEN: expected 0x%02x, found 0x%02x    "

      "Bytes: 0x%02x 0x%02x 0x%02x 0x%02x    Pixel: 0x%08x", g_expected, green,

      pixels[0], pixels[1], pixels[2], pixels[3], pixel);

  fail_unless (blue == b_expected, "BLUE: expected 0x%02x, found 0x%02x    "

      "Bytes: 0x%02x 0x%02x 0x%02x 0x%02x    Pixel: 0x%08x", b_expected, blue,

      pixels[0], pixels[1], pixels[2], pixels[3], pixel);

//  FIXME: fix alpha check

//  fail_unless (a_mask == 0 || alpha != 0);      /* better than nothing */

}

static void

got_buf_cb (GstElement * sink, GstBuffer * new_buf, GstPad * pad,

    GstBuffer ** p_old_buf)

{

  gst_buffer_replace (p_old_buf, new_buf);

}

/* Note: lots of this code here is also in the videotestsrc.c unit test */

void  test_rgb_to_rgb()

{

  const struct

  {

    const gchar *pattern_name;

    gint pattern_enum;

    guint8 r_expected;

    guint8 g_expected;

    guint8 b_expected;

  } test_patterns[] = {

    {

    "white", 3, 0xff, 0xff, 0xff}, {

    "red", 4, 0xff, 0x00, 0x00}, {

    "green", 5, 0x00, 0xff, 0x00}, {

    "blue", 6, 0x00, 0x00, 0xff}, {

    "black", 2, 0x00, 0x00, 0x00}

  };

  GstElement *pipeline, *src, *filter1, *csp, *filter2, *sink;

  const GstCaps *template_caps;

  GstBuffer *buf = NULL;

  GstPad *srcpad;

  GList *conversions, *l;

  gint p;

  /* test check function */

  fail_unless (right_shift_colour (0x00ff0000, 0x11223344) == 0x22);

  pipeline = gst_pipeline_new ("pipeline");

  src = gst_check_setup_element ("videotestsrc");

  filter1 = gst_check_setup_element ("capsfilter");

  csp = gst_check_setup_element ("ffmpegcolorspace");

  filter2 = gst_element_factory_make ("capsfilter", "to_filter");

  sink = gst_check_setup_element ("fakesink");

  gst_bin_add_many (GST_BIN (pipeline), src, filter1, csp, filter2, sink, NULL);

  fail_unless (gst_element_link (src, filter1));

  fail_unless (gst_element_link (filter1, csp));

  fail_unless (gst_element_link (csp, filter2));

  fail_unless (gst_element_link (filter2, sink));

  srcpad = gst_element_get_pad (src, "src");

  template_caps = gst_pad_get_pad_template_caps (srcpad);

  gst_object_unref (srcpad);

  g_object_set (sink, "signal-handoffs", TRUE, NULL);

  g_signal_connect (sink, "preroll-handoff", G_CALLBACK (got_buf_cb), &buf);

  GST_LOG ("videotestsrc src template caps: %" GST_PTR_FORMAT, template_caps);

  conversions = create_rgb_conversions ();

  for (l = conversions; l != NULL; l = l->next) {

    RGBConversion *conv = (RGBConversion *) l->data;

    /* does videotestsrc support the from_caps? */

    if (!gst_caps_is_subset (conv->from_caps, template_caps)) {

      GST_DEBUG ("videotestsrc doesn't support from_caps %" GST_PTR_FORMAT,

          conv->from_caps);

      continue;

    }

    /* caps are supported, let's run some tests then ... */

    for (p = 0; p < G_N_ELEMENTS (test_patterns); ++p) {

      GstStateChangeReturn state_ret;

      RGBFormat *from = &conv->from_fmt;

      RGBFormat *to = &conv->to_fmt;

      /* trick compiler into thinking from is used, might throw warning

       * otherwise if the debugging system is disabled */

      fail_unless (from != NULL);

      gst_element_set_state (pipeline, GST_STATE_NULL);

      g_object_set (src, "pattern", test_patterns[p].pattern_enum, NULL);

      GST_INFO ("%5s %u/%u %08x %08x %08x %08x %u => "

          "%5s %u/%u %08x %08x %08x %08x %u, pattern=%s",

          from->nick, from->bpp, from->depth, from->red_mask,

          from->green_mask, from->blue_mask, from->alpha_mask,

          from->endianness, to->nick, to->bpp, to->depth, to->red_mask,

          to->green_mask, to->blue_mask, to->alpha_mask, to->endianness,

          test_patterns[p].pattern_name);

      /* now get videotestsrc to produce a buffer with the given caps */

      g_object_set (filter1, "caps", conv->from_caps, NULL);

      /* ... and force ffmpegcolorspace to convert to our target caps */

      g_object_set (filter2, "caps", conv->to_caps, NULL);

      state_ret = gst_element_set_state (pipeline, GST_STATE_PAUSED);

      if (state_ret == GST_STATE_CHANGE_FAILURE) {

        GstMessage *msg;

        GError *err = NULL;

        msg = gst_bus_poll (GST_ELEMENT_BUS (pipeline), GST_MESSAGE_ERROR, 0);

        fail_if (msg == NULL, "expected ERROR message on the bus");

        fail_unless (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR);

        gst_message_parse_error (msg, &err, NULL);

        fail_unless (err != NULL);

        if (msg->src == GST_OBJECT_CAST (src) &&

            err->code == GST_STREAM_ERROR_FORMAT) {

          GST_DEBUG ("ffmpegcolorspace does not support this conversion");

          gst_message_unref (msg);

          g_error_free (err);

          continue;

        }

        fail_unless (state_ret != GST_STATE_CHANGE_FAILURE,

            "pipeline _set_state() to PAUSED failed: %s", err->message);

      }

      state_ret = gst_element_get_state (pipeline, NULL, NULL, GST_CLOCK_TIME_NONE);

     fail_unless (state_ret == GST_STATE_CHANGE_SUCCESS,

          "pipeline failed going to PAUSED state");

      state_ret = gst_element_set_state (pipeline, GST_STATE_NULL);

     fail_unless (state_ret == GST_STATE_CHANGE_SUCCESS);

      fail_unless (buf != NULL);

      /* check buffer caps */

      {

        GstStructure *s;

        gint v;

        fail_unless (GST_BUFFER_CAPS (buf) != NULL);

        s = gst_caps_get_structure (GST_BUFFER_CAPS (buf), 0);

        fail_unless (gst_structure_get_int (s, "bpp", &v));

        fail_unless_equals_int (v, to->bpp);

        fail_unless (gst_structure_get_int (s, "depth", &v));

        fail_unless_equals_int (v, to->depth);

        fail_unless (gst_structure_get_int (s, "red_mask", &v));

        fail_unless_equals_int (v, to->red_mask);

        fail_unless (gst_structure_get_int (s, "green_mask", &v));

        fail_unless_equals_int (v, to->green_mask);

        fail_unless (gst_structure_get_int (s, "blue_mask", &v));

        fail_unless_equals_int (v, to->blue_mask);

        /* there mustn't be an alpha_mask if there's no alpha component */

        if (to->depth == 32) {

          fail_unless (gst_structure_get_int (s, "alpha_mask", &v));

          fail_unless_equals_int (v, to->alpha_mask);

        } else {

          fail_unless (gst_structure_get_value (s, "alpha_mask") == NULL);

        }

      }

      /* now check the top-left pixel */

      check_rgb_buf (GST_BUFFER_DATA (buf), to->red_mask,

          to->green_mask, to->blue_mask, to->alpha_mask,

          test_patterns[p].r_expected, test_patterns[p].g_expected,

          test_patterns[p].b_expected, to->endianness, to->bpp, to->depth);

      gst_buffer_unref (buf);

      buf = NULL;

    }

  }

  g_list_foreach (conversions, (GFunc) rgb_conversion_free, NULL);

  g_list_free (conversions);

  gst_element_set_state (pipeline, GST_STATE_NULL);

  gst_object_unref (pipeline);

  std_log(LOG_FILENAME_LINE, "Test Successful");

  create_xml(0);

}

//GST_END_TEST;

/*static Suite *

ffmpegcolorspace_suite (void)

{

  Suite *s = suite_create ("ffmpegcolorspace");

  TCase *tc_chain = tcase_create ("general");

  suite_add_tcase (s, tc_chain);

#ifdef HAVE_VALGRIND

  if (RUNNING_ON_VALGRIND) {

    otherwise valgrind errors out when liboil probes CPU extensions

     during which it causes SIGILLs etc. to be fired 

    g_setenv ("OIL_CPU_FLAGS", "0", 0);

    test_rgb_formats takes a bit longer, so increase timeout 

    tcase_set_timeout (tc_chain, 10 * 60);

  }

#endif

  FIXME: add tests for YUV <=> YUV and YUV <=> RGB 

  tcase_add_test (tc_chain, test_rgb_to_rgb);

  return s;

}*/

void (*fn[]) (void) = {

        test_rgb_to_rgb

};

char *args[] = {

        "test_rgb_to_rgb"

};

/*void main()

    {

    gst_init (NULL, NULL);

    test_rgb_to_rgb();

    }*/

GST_CHECK_MAIN (ffmpegcolorspace);