src/gallium/frontends/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 VMWARE 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) == 0)
  94       context_priv->procamp.brightness = value / 1000.0f;
  95    else if (strcmp(attr, XV_CONTRAST) == 0)
  96       context_priv->procamp.contrast = value / 1000.0f + 1.0f;
  97    else if (strcmp(attr, XV_SATURATION) == 0)
  98       context_priv->procamp.saturation = value / 1000.0f + 1.0f;
  99    else if (strcmp(attr, XV_HUE) == 0)
 100       context_priv->procamp.hue = value / 1000.0f;
 101    else if (strcmp(attr, XV_COLORSPACE) == 0)
 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, 1.0f, 0.0f);
 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) == 0)
 138       *value = context_priv->procamp.brightness * 1000;
 139    else if (strcmp(attr, XV_CONTRAST) == 0)
 140       *value = context_priv->procamp.contrast * 1000 - 1000;
 141    else if (strcmp(attr, XV_SATURATION) == 0)
 142       *value = context_priv->procamp.saturation * 1000 + 1000;
 143    else if (strcmp(attr, XV_HUE) == 0)
 144       *value = context_priv->procamp.hue * 1000;
 145    else if (strcmp(attr, XV_COLORSPACE) == 0)
 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 }