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webvirtcloud/static/js/spice-html5/display.js
Retspen da6a2d7e29 Adde novnc js
2015-03-11 16:17:42 +02:00

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JavaScript
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"use strict";
/*
Copyright (C) 2012 by Jeremy P. White <jwhite@codeweavers.com>
This file is part of spice-html5.
spice-html5 is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
spice-html5 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with spice-html5. If not, see <http://www.gnu.org/licenses/>.
*/
/*----------------------------------------------------------------------------
** FIXME: putImageData does not support Alpha blending
** or compositing. So if we have data in an ImageData
** format, we have to draw it onto a context,
** and then use drawImage to put it onto the target,
** as drawImage does alpha.
**--------------------------------------------------------------------------*/
function putImageDataWithAlpha(context, d, x, y)
{
var c = document.createElement("canvas");
var t = c.getContext("2d");
c.setAttribute('width', d.width);
c.setAttribute('height', d.height);
t.putImageData(d, 0, 0);
context.drawImage(c, x, y, d.width, d.height);
}
/*----------------------------------------------------------------------------
** FIXME: Spice will send an image with '0' alpha when it is intended to
** go on a surface w/no alpha. So in that case, we have to strip
** out the alpha. The test case for this was flux box; in a Xspice
** server, right click on the desktop to get the menu; the top bar
** doesn't paint/highlight correctly w/out this change.
**--------------------------------------------------------------------------*/
function stripAlpha(d)
{
var i;
for (i = 0; i < (d.width * d.height * 4); i += 4)
d.data[i + 3] = 255;
}
/*----------------------------------------------------------------------------
** SpiceDisplayConn
** Drive the Spice Display Channel
**--------------------------------------------------------------------------*/
function SpiceDisplayConn()
{
SpiceConn.apply(this, arguments);
}
SpiceDisplayConn.prototype = Object.create(SpiceConn.prototype);
SpiceDisplayConn.prototype.process_channel_message = function(msg)
{
if (msg.type == SPICE_MSG_DISPLAY_MARK)
{
// FIXME - DISPLAY_MARK not implemented (may be hard or impossible)
this.known_unimplemented(msg.type, "Display Mark");
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_RESET)
{
DEBUG > 2 && console.log("Display reset");
this.surfaces[this.primary_surface].canvas.context.restore();
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_DRAW_COPY)
{
var draw_copy = new SpiceMsgDisplayDrawCopy(msg.data);
DEBUG > 1 && this.log_draw("DrawCopy", draw_copy);
if (! draw_copy.base.box.is_same_size(draw_copy.data.src_area))
this.log_warn("FIXME: DrawCopy src_area is a different size than base.box; we do not handle that yet.");
if (draw_copy.base.clip.type != SPICE_CLIP_TYPE_NONE)
this.log_warn("FIXME: DrawCopy we don't handle clipping yet");
if (draw_copy.data.rop_descriptor != SPICE_ROPD_OP_PUT)
this.log_warn("FIXME: DrawCopy we don't handle ropd type: " + draw_copy.data.rop_descriptor);
if (draw_copy.data.mask.flags)
this.log_warn("FIXME: DrawCopy we don't handle mask flag: " + draw_copy.data.mask.flags);
if (draw_copy.data.mask.bitmap)
this.log_warn("FIXME: DrawCopy we don't handle mask");
if (draw_copy.data && draw_copy.data.src_bitmap)
{
if (draw_copy.data.src_bitmap.descriptor.flags &&
draw_copy.data.src_bitmap.descriptor.flags != SPICE_IMAGE_FLAGS_CACHE_ME &&
draw_copy.data.src_bitmap.descriptor.flags != SPICE_IMAGE_FLAGS_HIGH_BITS_SET)
{
this.log_warn("FIXME: DrawCopy unhandled image flags: " + draw_copy.data.src_bitmap.descriptor.flags);
DEBUG <= 1 && this.log_draw("DrawCopy", draw_copy);
}
if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_QUIC)
{
var canvas = this.surfaces[draw_copy.base.surface_id].canvas;
if (! draw_copy.data.src_bitmap.quic)
{
this.log_warn("FIXME: DrawCopy could not handle this QUIC file.");
return false;
}
var source_img = convert_spice_quic_to_web(canvas.context,
draw_copy.data.src_bitmap.quic);
return this.draw_copy_helper(
{ base: draw_copy.base,
src_area: draw_copy.data.src_area,
image_data: source_img,
tag: "copyquic." + draw_copy.data.src_bitmap.quic.type,
has_alpha: (draw_copy.data.src_bitmap.quic.type == QUIC_IMAGE_TYPE_RGBA ? true : false) ,
descriptor : draw_copy.data.src_bitmap.descriptor
});
}
else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_FROM_CACHE ||
draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_FROM_CACHE_LOSSLESS)
{
if (! this.cache || ! this.cache[draw_copy.data.src_bitmap.descriptor.id])
{
this.log_warn("FIXME: DrawCopy did not find image id " + draw_copy.data.src_bitmap.descriptor.id + " in cache.");
return false;
}
return this.draw_copy_helper(
{ base: draw_copy.base,
src_area: draw_copy.data.src_area,
image_data: this.cache[draw_copy.data.src_bitmap.descriptor.id],
tag: "copycache." + draw_copy.data.src_bitmap.descriptor.id,
has_alpha: true, /* FIXME - may want this to be false... */
descriptor : draw_copy.data.src_bitmap.descriptor
});
/* FIXME - LOSSLESS CACHE ramifications not understood or handled */
}
else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_SURFACE)
{
var source_context = this.surfaces[draw_copy.data.src_bitmap.surface_id].canvas.context;
var target_context = this.surfaces[draw_copy.base.surface_id].canvas.context;
var source_img = source_context.getImageData(
draw_copy.data.src_area.left, draw_copy.data.src_area.top,
draw_copy.data.src_area.right - draw_copy.data.src_area.left,
draw_copy.data.src_area.bottom - draw_copy.data.src_area.top);
var computed_src_area = new SpiceRect;
computed_src_area.top = computed_src_area.left = 0;
computed_src_area.right = source_img.width;
computed_src_area.bottom = source_img.height;
/* FIXME - there is a potential optimization here.
That is, if the surface is from 0,0, and
both surfaces are alpha surfaces, you should
be able to just do a drawImage, which should
save time. */
return this.draw_copy_helper(
{ base: draw_copy.base,
src_area: computed_src_area,
image_data: source_img,
tag: "copysurf." + draw_copy.data.src_bitmap.surface_id,
has_alpha: this.surfaces[draw_copy.data.src_bitmap.surface_id].format == SPICE_SURFACE_FMT_32_xRGB ? false : true,
descriptor : draw_copy.data.src_bitmap.descriptor
});
return true;
}
else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_JPEG)
{
if (! draw_copy.data.src_bitmap.jpeg)
{
this.log_warn("FIXME: DrawCopy could not handle this JPEG file.");
return false;
}
// FIXME - how lame is this. Be have it in binary format, and we have
// to put it into string to get it back into jpeg. Blech.
var tmpstr = "data:image/jpeg,";
var img = new Image;
var i;
var qdv = new Uint8Array(draw_copy.data.src_bitmap.jpeg.data);
for (i = 0; i < qdv.length; i++)
{
tmpstr += '%';
if (qdv[i] < 16)
tmpstr += '0';
tmpstr += qdv[i].toString(16);
}
img.o =
{ base: draw_copy.base,
tag: "jpeg." + draw_copy.data.src_bitmap.surface_id,
descriptor : draw_copy.data.src_bitmap.descriptor,
sc : this,
};
img.onload = handle_draw_jpeg_onload;
img.src = tmpstr;
return true;
}
else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_JPEG_ALPHA)
{
if (! draw_copy.data.src_bitmap.jpeg_alpha)
{
this.log_warn("FIXME: DrawCopy could not handle this JPEG ALPHA file.");
return false;
}
// FIXME - how lame is this. Be have it in binary format, and we have
// to put it into string to get it back into jpeg. Blech.
var tmpstr = "data:image/jpeg,";
var img = new Image;
var i;
var qdv = new Uint8Array(draw_copy.data.src_bitmap.jpeg_alpha.data);
for (i = 0; i < qdv.length; i++)
{
tmpstr += '%';
if (qdv[i] < 16)
tmpstr += '0';
tmpstr += qdv[i].toString(16);
}
img.o =
{ base: draw_copy.base,
tag: "jpeg." + draw_copy.data.src_bitmap.surface_id,
descriptor : draw_copy.data.src_bitmap.descriptor,
sc : this,
};
if (this.surfaces[draw_copy.base.surface_id].format == SPICE_SURFACE_FMT_32_ARGB)
{
var canvas = this.surfaces[draw_copy.base.surface_id].canvas;
img.alpha_img = convert_spice_lz_to_web(canvas.context,
draw_copy.data.src_bitmap.jpeg_alpha.alpha);
}
img.onload = handle_draw_jpeg_onload;
img.src = tmpstr;
return true;
}
else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_BITMAP)
{
var canvas = this.surfaces[draw_copy.base.surface_id].canvas;
if (! draw_copy.data.src_bitmap.bitmap)
{
this.log_err("null bitmap");
return false;
}
var source_img = convert_spice_bitmap_to_web(canvas.context,
draw_copy.data.src_bitmap.bitmap);
if (! source_img)
{
this.log_warn("FIXME: Unable to interpret bitmap of format: " +
draw_copy.data.src_bitmap.bitmap.format);
return false;
}
return this.draw_copy_helper(
{ base: draw_copy.base,
src_area: draw_copy.data.src_area,
image_data: source_img,
tag: "bitmap." + draw_copy.data.src_bitmap.bitmap.format,
has_alpha: draw_copy.data.src_bitmap.bitmap == SPICE_BITMAP_FMT_32BIT ? false : true,
descriptor : draw_copy.data.src_bitmap.descriptor
});
}
else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_LZ_RGB)
{
var canvas = this.surfaces[draw_copy.base.surface_id].canvas;
if (! draw_copy.data.src_bitmap.lz_rgb)
{
this.log_err("null lz_rgb ");
return false;
}
if (draw_copy.data.src_bitmap.lz_rgb.top_down != 1)
this.log_warn("FIXME: Implement non top down support for lz_rgb");
var source_img = convert_spice_lz_to_web(canvas.context,
draw_copy.data.src_bitmap.lz_rgb);
if (! source_img)
{
this.log_warn("FIXME: Unable to interpret bitmap of type: " +
draw_copy.data.src_bitmap.lz_rgb.type);
return false;
}
return this.draw_copy_helper(
{ base: draw_copy.base,
src_area: draw_copy.data.src_area,
image_data: source_img,
tag: "lz_rgb." + draw_copy.data.src_bitmap.lz_rgb.type,
has_alpha: draw_copy.data.src_bitmap.lz_rgb.type == LZ_IMAGE_TYPE_RGBA ? true : false ,
descriptor : draw_copy.data.src_bitmap.descriptor
});
}
else
{
this.log_warn("FIXME: DrawCopy unhandled image type: " + draw_copy.data.src_bitmap.descriptor.type);
this.log_draw("DrawCopy", draw_copy);
return false;
}
}
this.log_warn("FIXME: DrawCopy no src_bitmap.");
return false;
}
if (msg.type == SPICE_MSG_DISPLAY_DRAW_FILL)
{
var draw_fill = new SpiceMsgDisplayDrawFill(msg.data);
DEBUG > 1 && this.log_draw("DrawFill", draw_fill);
if (draw_fill.data.rop_descriptor != SPICE_ROPD_OP_PUT)
this.log_warn("FIXME: DrawFill we don't handle ropd type: " + draw_fill.data.rop_descriptor);
if (draw_fill.data.mask.flags)
this.log_warn("FIXME: DrawFill we don't handle mask flag: " + draw_fill.data.mask.flags);
if (draw_fill.data.mask.bitmap)
this.log_warn("FIXME: DrawFill we don't handle mask");
if (draw_fill.data.brush.type == SPICE_BRUSH_TYPE_SOLID)
{
// FIXME - do brushes ever have alpha?
var color = draw_fill.data.brush.color & 0xffffff;
var color_str = "rgb(" + (color >> 16) + ", " + ((color >> 8) & 0xff) + ", " + (color & 0xff) + ")";
this.surfaces[draw_fill.base.surface_id].canvas.context.fillStyle = color_str;
this.surfaces[draw_fill.base.surface_id].canvas.context.fillRect(
draw_fill.base.box.left, draw_fill.base.box.top,
draw_fill.base.box.right - draw_fill.base.box.left,
draw_fill.base.box.bottom - draw_fill.base.box.top);
if (DUMP_DRAWS && this.parent.dump_id)
{
var debug_canvas = document.createElement("canvas");
debug_canvas.setAttribute('width', this.surfaces[draw_fill.base.surface_id].canvas.width);
debug_canvas.setAttribute('height', this.surfaces[draw_fill.base.surface_id].canvas.height);
debug_canvas.setAttribute('id', "fillbrush." + draw_fill.base.surface_id + "." + this.surfaces[draw_fill.base.surface_id].draw_count);
debug_canvas.getContext("2d").fillStyle = color_str;
debug_canvas.getContext("2d").fillRect(
draw_fill.base.box.left, draw_fill.base.box.top,
draw_fill.base.box.right - draw_fill.base.box.left,
draw_fill.base.box.bottom - draw_fill.base.box.top);
document.getElementById(this.parent.dump_id).appendChild(debug_canvas);
}
this.surfaces[draw_fill.base.surface_id].draw_count++;
}
else
{
this.log_warn("FIXME: DrawFill can't handle brush type: " + draw_fill.data.brush.type);
}
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_COPY_BITS)
{
var copy_bits = new SpiceMsgDisplayCopyBits(msg.data);
DEBUG > 1 && this.log_draw("CopyBits", copy_bits);
var source_canvas = this.surfaces[copy_bits.base.surface_id].canvas;
var source_context = source_canvas.context;
var width = source_canvas.width - copy_bits.src_pos.x;
var height = source_canvas.height - copy_bits.src_pos.y;
if (width > (copy_bits.base.box.right - copy_bits.base.box.left))
width = copy_bits.base.box.right - copy_bits.base.box.left;
if (height > (copy_bits.base.box.bottom - copy_bits.base.box.top))
height = copy_bits.base.box.bottom - copy_bits.base.box.top;
var source_img = source_context.getImageData(
copy_bits.src_pos.x, copy_bits.src_pos.y, width, height);
//source_context.putImageData(source_img, copy_bits.base.box.left, copy_bits.base.box.top);
putImageDataWithAlpha(source_context, source_img, copy_bits.base.box.left, copy_bits.base.box.top);
if (DUMP_DRAWS && this.parent.dump_id)
{
var debug_canvas = document.createElement("canvas");
debug_canvas.setAttribute('width', width);
debug_canvas.setAttribute('height', height);
debug_canvas.setAttribute('id', "copybits" + copy_bits.base.surface_id + "." + this.surfaces[copy_bits.base.surface_id].draw_count);
debug_canvas.getContext("2d").putImageData(source_img, 0, 0);
document.getElementById(this.parent.dump_id).appendChild(debug_canvas);
}
this.surfaces[copy_bits.base.surface_id].draw_count++;
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_INVAL_ALL_PALETTES)
{
this.known_unimplemented(msg.type, "Inval All Palettes");
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_SURFACE_CREATE)
{
if (! ("surfaces" in this))
this.surfaces = [];
var m = new SpiceMsgSurfaceCreate(msg.data);
DEBUG > 1 && console.log(this.type + ": MsgSurfaceCreate id " + m.surface.surface_id
+ "; " + m.surface.width + "x" + m.surface.height
+ "; format " + m.surface.format
+ "; flags " + m.surface.flags);
if (m.surface.format != SPICE_SURFACE_FMT_32_xRGB &&
m.surface.format != SPICE_SURFACE_FMT_32_ARGB)
{
this.log_warn("FIXME: cannot handle surface format " + m.surface.format + " yet.");
return false;
}
var canvas = document.createElement("canvas");
canvas.setAttribute('width', m.surface.width);
canvas.setAttribute('height', m.surface.height);
canvas.setAttribute('id', "spice_surface_" + m.surface.surface_id);
canvas.setAttribute('tabindex', m.surface.surface_id);
canvas.context = canvas.getContext("2d");
if (DUMP_CANVASES && this.parent.dump_id)
document.getElementById(this.parent.dump_id).appendChild(canvas);
m.surface.canvas = canvas;
m.surface.draw_count = 0;
this.surfaces[m.surface.surface_id] = m.surface;
if (m.surface.flags & SPICE_SURFACE_FLAGS_PRIMARY)
{
this.primary_surface = m.surface.surface_id;
/* This .save() is done entirely to enable SPICE_MSG_DISPLAY_RESET */
canvas.context.save();
document.getElementById(this.parent.screen_id).appendChild(canvas);
/* We're going to leave width dynamic, but correctly set the height */
document.getElementById(this.parent.screen_id).style.height = m.surface.height + "px";
this.hook_events();
}
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_SURFACE_DESTROY)
{
var m = new SpiceMsgSurfaceDestroy(msg.data);
DEBUG > 1 && console.log(this.type + ": MsgSurfaceDestroy id " + m.surface_id);
this.delete_surface(m.surface_id);
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_STREAM_CREATE)
{
var m = new SpiceMsgDisplayStreamCreate(msg.data);
DEBUG > 1 && console.log(this.type + ": MsgStreamCreate id" + m.id);
if (!this.streams)
this.streams = new Array();
if (this.streams[m.id])
console.log("Stream already exists");
else
this.streams[m.id] = m;
if (m.codec_type != SPICE_VIDEO_CODEC_TYPE_MJPEG)
console.log("Unhandled stream codec: "+m.codec_type);
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_STREAM_DATA)
{
var m = new SpiceMsgDisplayStreamData(msg.data);
if (!this.streams[m.base.id])
{
console.log("no stream for data");
return false;
}
if (this.streams[m.base.id].codec_type === SPICE_VIDEO_CODEC_TYPE_MJPEG)
{
var tmpstr = "data:image/jpeg,";
var img = new Image;
var i;
for (i = 0; i < m.data.length; i++)
{
tmpstr += '%';
if (m.data[i] < 16)
tmpstr += '0';
tmpstr += m.data[i].toString(16);
}
var strm_base = new SpiceMsgDisplayBase();
strm_base.surface_id = this.streams[m.base.id].surface_id;
strm_base.box = this.streams[m.base.id].dest;
strm_base.clip = this.streams[m.base.id].clip;
img.o =
{ base: strm_base,
tag: "mjpeg." + m.base.id,
descriptor: null,
sc : this,
};
img.onload = handle_draw_jpeg_onload;
img.src = tmpstr;
}
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_STREAM_CLIP)
{
var m = new SpiceMsgDisplayStreamClip(msg.data);
DEBUG > 1 && console.log(this.type + ": MsgStreamClip id" + m.id);
this.streams[m.id].clip = m.clip;
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_STREAM_DESTROY)
{
var m = new SpiceMsgDisplayStreamDestroy(msg.data);
DEBUG > 1 && console.log(this.type + ": MsgStreamDestroy id" + m.id);
this.streams[m.id] = undefined;
return true;
}
if (msg.type == SPICE_MSG_DISPLAY_INVAL_LIST)
{
var m = new SpiceMsgDisplayInvalList(msg.data);
var i;
DEBUG > 1 && console.log(this.type + ": MsgInvalList " + m.count + " items");
for (i = 0; i < m.count; i++)
if (this.cache[m.resources[i].id] != undefined)
delete this.cache[m.resources[i].id];
return true;
}
return false;
}
SpiceDisplayConn.prototype.delete_surface = function(surface_id)
{
var canvas = document.getElementById("spice_surface_" + surface_id);
if (DUMP_CANVASES && this.parent.dump_id)
document.getElementById(this.parent.dump_id).removeChild(canvas);
if (this.primary_surface == surface_id)
{
this.unhook_events();
this.primary_surface = undefined;
document.getElementById(this.parent.screen_id).removeChild(canvas);
}
delete this.surfaces[surface_id];
}
SpiceDisplayConn.prototype.draw_copy_helper = function(o)
{
var canvas = this.surfaces[o.base.surface_id].canvas;
if (o.has_alpha)
{
/* FIXME - This is based on trial + error, not a serious thoughtful
analysis of what Spice requires. See display.js for more. */
if (this.surfaces[o.base.surface_id].format == SPICE_SURFACE_FMT_32_xRGB)
{
stripAlpha(o.image_data);
canvas.context.putImageData(o.image_data, o.base.box.left, o.base.box.top);
}
else
putImageDataWithAlpha(canvas.context, o.image_data,
o.base.box.left, o.base.box.top);
}
else
canvas.context.putImageData(o.image_data, o.base.box.left, o.base.box.top);
if (o.src_area.left > 0 || o.src_area.top > 0)
{
this.log_warn("FIXME: DrawCopy not shifting draw copies just yet...");
}
if (o.descriptor && (o.descriptor.flags & SPICE_IMAGE_FLAGS_CACHE_ME))
{
if (! ("cache" in this))
this.cache = {};
this.cache[o.descriptor.id] = o.image_data;
}
if (DUMP_DRAWS && this.parent.dump_id)
{
var debug_canvas = document.createElement("canvas");
debug_canvas.setAttribute('width', o.image_data.width);
debug_canvas.setAttribute('height', o.image_data.height);
debug_canvas.setAttribute('id', o.tag + "." +
this.surfaces[o.base.surface_id].draw_count + "." +
o.base.surface_id + "@" + o.base.box.left + "x" + o.base.box.top);
debug_canvas.getContext("2d").putImageData(o.image_data, 0, 0);
document.getElementById(this.parent.dump_id).appendChild(debug_canvas);
}
this.surfaces[o.base.surface_id].draw_count++;
return true;
}
SpiceDisplayConn.prototype.log_draw = function(prefix, draw)
{
var str = prefix + "." + draw.base.surface_id + "." + this.surfaces[draw.base.surface_id].draw_count + ": ";
str += "base.box " + draw.base.box.left + ", " + draw.base.box.top + " to " +
draw.base.box.right + ", " + draw.base.box.bottom;
str += "; clip.type " + draw.base.clip.type;
if (draw.data)
{
if (draw.data.src_area)
str += "; src_area " + draw.data.src_area.left + ", " + draw.data.src_area.top + " to "
+ draw.data.src_area.right + ", " + draw.data.src_area.bottom;
if (draw.data.src_bitmap && draw.data.src_bitmap != null)
{
str += "; src_bitmap id: " + draw.data.src_bitmap.descriptor.id;
str += "; src_bitmap width " + draw.data.src_bitmap.descriptor.width + ", height " + draw.data.src_bitmap.descriptor.height;
str += "; src_bitmap type " + draw.data.src_bitmap.descriptor.type + ", flags " + draw.data.src_bitmap.descriptor.flags;
if (draw.data.src_bitmap.surface_id !== undefined)
str += "; src_bitmap surface_id " + draw.data.src_bitmap.surface_id;
if (draw.data.src_bitmap.quic)
str += "; QUIC type " + draw.data.src_bitmap.quic.type +
"; width " + draw.data.src_bitmap.quic.width +
"; height " + draw.data.src_bitmap.quic.height ;
if (draw.data.src_bitmap.lz_rgb)
str += "; LZ_RGB length " + draw.data.src_bitmap.lz_rgb.length +
"; magic " + draw.data.src_bitmap.lz_rgb.magic +
"; version 0x" + draw.data.src_bitmap.lz_rgb.version.toString(16) +
"; type " + draw.data.src_bitmap.lz_rgb.type +
"; width " + draw.data.src_bitmap.lz_rgb.width +
"; height " + draw.data.src_bitmap.lz_rgb.height +
"; stride " + draw.data.src_bitmap.lz_rgb.stride +
"; top down " + draw.data.src_bitmap.lz_rgb.top_down;
}
else
str += "; src_bitmap is null";
if (draw.data.brush)
{
if (draw.data.brush.type == SPICE_BRUSH_TYPE_SOLID)
str += "; brush.color 0x" + draw.data.brush.color.toString(16);
if (draw.data.brush.type == SPICE_BRUSH_TYPE_PATTERN)
{
str += "; brush.pat ";
if (draw.data.brush.pattern.pat != null)
str += "[SpiceImage]";
else
str += "[null]";
str += " at " + draw.data.brush.pattern.pos.x + ", " + draw.data.brush.pattern.pos.y;
}
}
str += "; rop_descriptor " + draw.data.rop_descriptor;
if (draw.data.scale_mode !== undefined)
str += "; scale_mode " + draw.data.scale_mode;
str += "; mask.flags " + draw.data.mask.flags;
str += "; mask.pos " + draw.data.mask.pos.x + ", " + draw.data.mask.pos.y;
if (draw.data.mask.bitmap != null)
{
str += "; mask.bitmap width " + draw.data.mask.bitmap.descriptor.width + ", height " + draw.data.mask.bitmap.descriptor.height;
str += "; mask.bitmap type " + draw.data.mask.bitmap.descriptor.type + ", flags " + draw.data.mask.bitmap.descriptor.flags;
}
else
str += "; mask.bitmap is null";
}
console.log(str);
}
SpiceDisplayConn.prototype.hook_events = function()
{
if (this.primary_surface !== undefined)
{
var canvas = this.surfaces[this.primary_surface].canvas;
canvas.sc = this.parent;
canvas.addEventListener('mousemove', handle_mousemove);
canvas.addEventListener('mousedown', handle_mousedown);
canvas.addEventListener('contextmenu', handle_contextmenu);
canvas.addEventListener('mouseup', handle_mouseup);
canvas.addEventListener('keydown', handle_keydown);
canvas.addEventListener('keyup', handle_keyup);
canvas.addEventListener('mouseout', handle_mouseout);
canvas.addEventListener('mouseover', handle_mouseover);
canvas.addEventListener('wheel', handle_mousewheel);
canvas.focus();
}
}
SpiceDisplayConn.prototype.unhook_events = function()
{
if (this.primary_surface !== undefined)
{
var canvas = this.surfaces[this.primary_surface].canvas;
canvas.removeEventListener('mousemove', handle_mousemove);
canvas.removeEventListener('mousedown', handle_mousedown);
canvas.removeEventListener('contextmenu', handle_contextmenu);
canvas.removeEventListener('mouseup', handle_mouseup);
canvas.removeEventListener('keydown', handle_keydown);
canvas.removeEventListener('keyup', handle_keyup);
canvas.removeEventListener('mouseout', handle_mouseout);
canvas.removeEventListener('mouseover', handle_mouseover);
canvas.removeEventListener('wheel', handle_mousewheel);
}
}
SpiceDisplayConn.prototype.destroy_surfaces = function()
{
for (var s in this.surfaces)
{
this.delete_surface(this.surfaces[s].surface_id);
}
this.surfaces = undefined;
}
function handle_mouseover(e)
{
this.focus();
}
function handle_mouseout(e)
{
if (this.sc && this.sc.cursor && this.sc.cursor.spice_simulated_cursor)
this.sc.cursor.spice_simulated_cursor.style.display = 'none';
this.blur();
}
function handle_draw_jpeg_onload()
{
var temp_canvas = null;
var context;
/*------------------------------------------------------------
** FIXME:
** The helper should be extended to be able to handle actual HtmlImageElements
** ...and the cache should be modified to do so as well
**----------------------------------------------------------*/
if (this.o.sc.surfaces[this.o.base.surface_id] === undefined)
{
// This can happen; if the jpeg image loads after our surface
// has been destroyed (e.g. open a menu, close it quickly),
// we'll find we have no surface.
DEBUG > 2 && this.o.sc.log_info("Discarding jpeg; presumed lost surface " + this.o.base.surface_id);
temp_canvas = document.createElement("canvas");
temp_canvas.setAttribute('width', this.o.base.box.right);
temp_canvas.setAttribute('height', this.o.base.box.bottom);
context = temp_canvas.getContext("2d");
}
else
context = this.o.sc.surfaces[this.o.base.surface_id].canvas.context;
if (this.alpha_img)
{
var c = document.createElement("canvas");
var t = c.getContext("2d");
c.setAttribute('width', this.alpha_img.width);
c.setAttribute('height', this.alpha_img.height);
t.putImageData(this.alpha_img, 0, 0);
t.globalCompositeOperation = 'source-in';
t.drawImage(this, 0, 0);
context.drawImage(c, this.o.base.box.left, this.o.base.box.top);
if (this.o.descriptor &&
(this.o.descriptor.flags & SPICE_IMAGE_FLAGS_CACHE_ME))
{
if (! ("cache" in this.o.sc))
this.o.sc.cache = {};
this.o.sc.cache[this.o.descriptor.id] =
t.getImageData(0, 0,
this.alpha_img.width,
this.alpha_img.height);
}
}
else
{
context.drawImage(this, this.o.base.box.left, this.o.base.box.top);
// Give the Garbage collector a clue to recycle this; avoids
// fairly massive memory leaks during video playback
this.src = null;
if (this.o.descriptor &&
(this.o.descriptor.flags & SPICE_IMAGE_FLAGS_CACHE_ME))
{
if (! ("cache" in this.o.sc))
this.o.sc.cache = {};
this.o.sc.cache[this.o.descriptor.id] =
context.getImageData(this.o.base.box.left, this.o.base.box.top,
this.o.base.box.right - this.o.base.box.left,
this.o.base.box.bottom - this.o.base.box.top);
}
}
if (temp_canvas == null)
{
if (DUMP_DRAWS && this.o.sc.parent.dump_id)
{
var debug_canvas = document.createElement("canvas");
debug_canvas.setAttribute('id', this.o.tag + "." +
this.o.sc.surfaces[this.o.base.surface_id].draw_count + "." +
this.o.base.surface_id + "@" + this.o.base.box.left + "x" + this.o.base.box.top);
debug_canvas.getContext("2d").drawImage(this, 0, 0);
document.getElementById(this.o.sc.parent.dump_id).appendChild(debug_canvas);
}
this.o.sc.surfaces[this.o.base.surface_id].draw_count++;
}
}
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