src/gallium/state_trackers/xorg/xvmc/attributes.c

   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    XvMCContextPrivate *context_priv;
  57    XvAttribute *result;
  58
  59    assert(dpy && number);
  60
  61    if (!context || !context->privData)
  62       return NULL;
  63
  64    context_priv = context->privData;
  65
  66    result = malloc(sizeof(attributes));
  67    if (!result)
  68       return NULL;
  69
  70    memcpy(result, attributes, sizeof(attributes));
  71    *number = sizeof(attributes) / sizeof(XvAttribute);
  72
  73    XVMC_MSG(XVMC_TRACE, "[XvMC] Returning %d attributes for context %p.\n", *number, context);
  74
  75    return result;
  76 }
  77
  78 PUBLIC
  79 Status XvMCSetAttribute(Display *dpy, XvMCContext *context, Atom attribute, int value)
  80 {
  81    XvMCContextPrivate *context_priv;
  82    const char *attr;
  83    float csc[16];
  84
  85    assert(dpy);
  86
  87    if (!context || !context->privData)
  88       return XvMCBadContext;
  89
  90    context_priv = context->privData;
  91
  92    attr = XGetAtomName(dpy, attribute);
  93    if (!attr)
  94       return XvMCBadContext;
  95
  96    if (strcmp(attr, XV_BRIGHTNESS))
  97       context_priv->procamp.brightness = value / 1000.0f;
  98    else if (strcmp(attr, XV_CONTRAST))
  99       context_priv->procamp.contrast = value / 1000.0f + 1.0f;
 100    else if (strcmp(attr, XV_SATURATION))
 101       context_priv->procamp.saturation = value / 1000.0f + 1.0f;
 102    else if (strcmp(attr, XV_HUE))
 103       context_priv->procamp.hue = value / 1000.0f;
 104    else if (strcmp(attr, XV_COLORSPACE))
 105       context_priv->color_standard = value ?
 106          VL_CSC_COLOR_STANDARD_BT_601 :
 107          VL_CSC_COLOR_STANDARD_BT_709;
 108    else
 109       return BadName;
 110
 111    vl_csc_get_matrix
 112    (
 113       context_priv->color_standard,
 114       &context_priv->procamp, true, csc
 115    );
 116    vl_compositor_set_csc_matrix(&context_priv->compositor, csc);
 117
 118    XVMC_MSG(XVMC_TRACE, "[XvMC] Set attribute %s to value %d.\n", attr, value);
 119
 120    return Success;
 121 }
 122
 123 PUBLIC
 124 Status XvMCGetAttribute(Display *dpy, XvMCContext *context, Atom attribute, int *value)
 125 {
 126    XvMCContextPrivate *context_priv;
 127    const char *attr;
 128
 129    assert(dpy);
 130
 131    if (!context || !context->privData)
 132       return XvMCBadContext;
 133
 134    context_priv = context->privData;
 135
 136    attr = XGetAtomName(dpy, attribute);
 137    if (!attr)
 138       return XvMCBadContext;
 139
 140    if (strcmp(attr, XV_BRIGHTNESS))
 141       *value = context_priv->procamp.brightness * 1000;
 142    else if (strcmp(attr, XV_CONTRAST))
 143       *value = context_priv->procamp.contrast * 1000 - 1000;
 144    else if (strcmp(attr, XV_SATURATION))
 145       *value = context_priv->procamp.saturation * 1000 + 1000;
 146    else if (strcmp(attr, XV_HUE))
 147       *value = context_priv->procamp.hue * 1000;
 148    else if (strcmp(attr, XV_COLORSPACE))
 149       *value = context_priv->color_standard == VL_CSC_COLOR_STANDARD_BT_709;
 150    else
 151       return BadName;
 152
 153    XVMC_MSG(XVMC_TRACE, "[XvMC] Got value %d for attribute %s.\n", *value, attr);
 154
 155    return Success;
 156 }