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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2009 Younes Manton.
  4.  * All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice (including the
  15.  * next paragraph) shall be included in all copies or substantial portions
  16.  * of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21.  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28. #include <assert.h>
  29. #include <stdlib.h>
  30.  
  31. #include <X11/Xlib.h>
  32. #include <X11/extensions/Xvlib.h>
  33. #include <X11/extensions/XvMClib.h>
  34.  
  35. #include "vl/vl_compositor.h"
  36.  
  37. #include "xvmc_private.h"
  38.  
  39. #define XV_BRIGHTNESS "XV_BRIGHTNESS"
  40. #define XV_CONTRAST   "XV_CONTRAST"
  41. #define XV_SATURATION "XV_SATURATION"
  42. #define XV_HUE        "XV_HUE"
  43. #define XV_COLORSPACE "XV_COLORSPACE"
  44.  
  45. static const XvAttribute attributes[] = {
  46.    { XvGettable | XvSettable, -1000, 1000, XV_BRIGHTNESS },
  47.    { XvGettable | XvSettable, -1000, 1000, XV_CONTRAST },
  48.    { XvGettable | XvSettable, -1000, 1000, XV_SATURATION },
  49.    { XvGettable | XvSettable, -1000, 1000, XV_HUE },
  50.    { XvGettable | XvSettable, 0, 1, XV_COLORSPACE }
  51. };
  52.  
  53. PUBLIC
  54. XvAttribute* XvMCQueryAttributes(Display *dpy, XvMCContext *context, int *number)
  55. {
  56.    XvAttribute *result;
  57.  
  58.    assert(dpy && number);
  59.  
  60.    if (!context || !context->privData)
  61.       return NULL;
  62.  
  63.    result = malloc(sizeof(attributes));
  64.    if (!result)
  65.       return NULL;
  66.  
  67.    memcpy(result, attributes, sizeof(attributes));
  68.    *number = sizeof(attributes) / sizeof(XvAttribute);
  69.  
  70.    XVMC_MSG(XVMC_TRACE, "[XvMC] Returning %d attributes for context %p.\n", *number, context);
  71.  
  72.    return result;
  73. }
  74.  
  75. PUBLIC
  76. Status XvMCSetAttribute(Display *dpy, XvMCContext *context, Atom attribute, int value)
  77. {
  78.    XvMCContextPrivate *context_priv;
  79.    const char *attr;
  80.    vl_csc_matrix csc;
  81.  
  82.    assert(dpy);
  83.  
  84.    if (!context || !context->privData)
  85.       return XvMCBadContext;
  86.  
  87.    context_priv = context->privData;
  88.  
  89.    attr = XGetAtomName(dpy, attribute);
  90.    if (!attr)
  91.       return XvMCBadContext;
  92.  
  93.    if (strcmp(attr, XV_BRIGHTNESS))
  94.       context_priv->procamp.brightness = value / 1000.0f;
  95.    else if (strcmp(attr, XV_CONTRAST))
  96.       context_priv->procamp.contrast = value / 1000.0f + 1.0f;
  97.    else if (strcmp(attr, XV_SATURATION))
  98.       context_priv->procamp.saturation = value / 1000.0f + 1.0f;
  99.    else if (strcmp(attr, XV_HUE))
  100.       context_priv->procamp.hue = value / 1000.0f;
  101.    else if (strcmp(attr, XV_COLORSPACE))
  102.       context_priv->color_standard = value ?
  103.          VL_CSC_COLOR_STANDARD_BT_601 :
  104.          VL_CSC_COLOR_STANDARD_BT_709;
  105.    else
  106.       return BadName;
  107.  
  108.    vl_csc_get_matrix
  109.    (
  110.       context_priv->color_standard,
  111.       &context_priv->procamp, true, &csc
  112.    );
  113.    vl_compositor_set_csc_matrix(&context_priv->cstate, (const vl_csc_matrix *)&csc);
  114.  
  115.    XVMC_MSG(XVMC_TRACE, "[XvMC] Set attribute %s to value %d.\n", attr, value);
  116.  
  117.    return Success;
  118. }
  119.  
  120. PUBLIC
  121. Status XvMCGetAttribute(Display *dpy, XvMCContext *context, Atom attribute, int *value)
  122. {
  123.    XvMCContextPrivate *context_priv;
  124.    const char *attr;
  125.  
  126.    assert(dpy);
  127.  
  128.    if (!context || !context->privData)
  129.       return XvMCBadContext;
  130.  
  131.    context_priv = context->privData;
  132.  
  133.    attr = XGetAtomName(dpy, attribute);
  134.    if (!attr)
  135.       return XvMCBadContext;
  136.  
  137.    if (strcmp(attr, XV_BRIGHTNESS))
  138.       *value = context_priv->procamp.brightness * 1000;
  139.    else if (strcmp(attr, XV_CONTRAST))
  140.       *value = context_priv->procamp.contrast * 1000 - 1000;
  141.    else if (strcmp(attr, XV_SATURATION))
  142.       *value = context_priv->procamp.saturation * 1000 + 1000;
  143.    else if (strcmp(attr, XV_HUE))
  144.       *value = context_priv->procamp.hue * 1000;
  145.    else if (strcmp(attr, XV_COLORSPACE))
  146.       *value = context_priv->color_standard == VL_CSC_COLOR_STANDARD_BT_709;
  147.    else
  148.       return BadName;
  149.  
  150.    XVMC_MSG(XVMC_TRACE, "[XvMC] Got value %d for attribute %s.\n", *value, attr);
  151.  
  152.    return Success;
  153. }
  154.