674 lines
28 KiB
JavaScript
674 lines
28 KiB
JavaScript
"use strict";
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/*
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Copyright (C) 2012 by Jeremy P. White <jwhite@codeweavers.com>
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This file is part of spice-html5.
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spice-html5 is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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spice-html5 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with spice-html5. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*----------------------------------------------------------------------------
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** FIXME: putImageData does not support Alpha blending
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** or compositing. So if we have data in an ImageData
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** format, we have to draw it onto a context,
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** and then use drawImage to put it onto the target,
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** as drawImage does alpha.
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**--------------------------------------------------------------------------*/
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function putImageDataWithAlpha(context, d, x, y)
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{
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var c = document.createElement("canvas");
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var t = c.getContext("2d");
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c.setAttribute('width', d.width);
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c.setAttribute('height', d.height);
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t.putImageData(d, 0, 0);
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context.drawImage(c, x, y, d.width, d.height);
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}
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/*----------------------------------------------------------------------------
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** FIXME: Spice will send an image with '0' alpha when it is intended to
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** go on a surface w/no alpha. So in that case, we have to strip
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** out the alpha. The test case for this was flux box; in a Xspice
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** server, right click on the desktop to get the menu; the top bar
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** doesn't paint/highlight correctly w/out this change.
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**--------------------------------------------------------------------------*/
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function stripAlpha(d)
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{
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var i;
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for (i = 0; i < (d.width * d.height * 4); i += 4)
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d.data[i + 3] = 255;
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}
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// FIXME - this is a hack for quic.js, I should fix this...
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var global_ctx;
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/*----------------------------------------------------------------------------
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** SpiceDisplayConn
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** Drive the Spice Display Channel
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**--------------------------------------------------------------------------*/
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function SpiceDisplayConn()
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{
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SpiceConn.apply(this, arguments);
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}
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SpiceDisplayConn.prototype = Object.create(SpiceConn.prototype);
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SpiceDisplayConn.prototype.process_channel_message = function(msg)
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{
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if (msg.type == SPICE_MSG_DISPLAY_MARK)
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{
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// FIXME - DISPLAY_MARK not implemented (may be hard or impossible)
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this.known_unimplemented(msg.type, "Display Mark");
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return true;
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}
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if (msg.type == SPICE_MSG_DISPLAY_RESET)
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{
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DEBUG > 2 && console.log("Display reset");
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this.surfaces[this.primary_surface].canvas.context.restore();
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return true;
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}
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if (msg.type == SPICE_MSG_DISPLAY_DRAW_COPY)
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{
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var draw_copy = new SpiceMsgDisplayDrawCopy(msg.data);
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DEBUG > 1 && this.log_draw("DrawCopy", draw_copy);
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if (! draw_copy.base.box.is_same_size(draw_copy.data.src_area))
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this.log_warn("FIXME: DrawCopy src_area is a different size than base.box; we do not handle that yet.");
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if (draw_copy.base.clip.type != SPICE_CLIP_TYPE_NONE)
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this.log_warn("FIXME: DrawCopy we don't handle clipping yet");
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if (draw_copy.data.rop_descriptor != SPICE_ROPD_OP_PUT)
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this.log_warn("FIXME: DrawCopy we don't handle ropd type: " + draw_copy.data.rop_descriptor);
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if (draw_copy.data.mask.flags)
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this.log_warn("FIXME: DrawCopy we don't handle mask flag: " + draw_copy.data.mask.flags);
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if (draw_copy.data.mask.bitmap)
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this.log_warn("FIXME: DrawCopy we don't handle mask");
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if (draw_copy.data && draw_copy.data.src_bitmap)
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{
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if (draw_copy.data.src_bitmap.descriptor.flags &&
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draw_copy.data.src_bitmap.descriptor.flags != SPICE_IMAGE_FLAGS_CACHE_ME &&
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draw_copy.data.src_bitmap.descriptor.flags != SPICE_IMAGE_FLAGS_HIGH_BITS_SET)
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{
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this.log_warn("FIXME: DrawCopy unhandled image flags: " + draw_copy.data.src_bitmap.descriptor.flags);
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DEBUG <= 1 && this.log_draw("DrawCopy", draw_copy);
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}
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if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_QUIC)
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{
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if (! draw_copy.data.src_bitmap.quic)
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{
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this.log_warn("FIXME: DrawCopy could not handle this QUIC file.");
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return false;
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}
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return this.draw_copy_helper(
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{ base: draw_copy.base,
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src_area: draw_copy.data.src_area,
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image_data: draw_copy.data.src_bitmap.quic.imgData,
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tag: "copyquic." + draw_copy.data.src_bitmap.quic.type,
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has_alpha: (draw_copy.data.src_bitmap.quic.type == QUIC_IMAGE_TYPE_RGBA ? true : false) ,
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descriptor : draw_copy.data.src_bitmap.descriptor
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});
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}
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else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_FROM_CACHE ||
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draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_FROM_CACHE_LOSSLESS)
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{
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if (! this.cache || ! this.cache[draw_copy.data.src_bitmap.descriptor.id])
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{
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this.log_warn("FIXME: DrawCopy did not find image id " + draw_copy.data.src_bitmap.descriptor.id + " in cache.");
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return false;
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}
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return this.draw_copy_helper(
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{ base: draw_copy.base,
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src_area: draw_copy.data.src_area,
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image_data: this.cache[draw_copy.data.src_bitmap.descriptor.id],
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tag: "copycache." + draw_copy.data.src_bitmap.descriptor.id,
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has_alpha: true, /* FIXME - may want this to be false... */
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descriptor : draw_copy.data.src_bitmap.descriptor
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});
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/* FIXME - LOSSLESS CACHE ramifications not understood or handled */
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}
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else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_SURFACE)
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{
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var source_context = this.surfaces[draw_copy.data.src_bitmap.surface_id].canvas.context;
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var target_context = this.surfaces[draw_copy.base.surface_id].canvas.context;
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var source_img = source_context.getImageData(
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draw_copy.data.src_area.left, draw_copy.data.src_area.top,
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draw_copy.data.src_area.right - draw_copy.data.src_area.left,
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draw_copy.data.src_area.bottom - draw_copy.data.src_area.top);
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var computed_src_area = new SpiceRect;
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computed_src_area.top = computed_src_area.left = 0;
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computed_src_area.right = source_img.width;
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computed_src_area.bottom = source_img.height;
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/* FIXME - there is a potential optimization here.
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That is, if the surface is from 0,0, and
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both surfaces are alpha surfaces, you should
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be able to just do a drawImage, which should
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save time. */
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return this.draw_copy_helper(
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{ base: draw_copy.base,
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src_area: computed_src_area,
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image_data: source_img,
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tag: "copysurf." + draw_copy.data.src_bitmap.surface_id,
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has_alpha: this.surfaces[draw_copy.data.src_bitmap.surface_id].format == SPICE_SURFACE_FMT_32_xRGB ? false : true,
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descriptor : draw_copy.data.src_bitmap.descriptor
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});
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return true;
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}
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else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_JPEG)
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{
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if (! draw_copy.data.src_bitmap.jpeg)
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{
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this.log_warn("FIXME: DrawCopy could not handle this JPEG file.");
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return false;
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}
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// FIXME - how lame is this. Be have it in binary format, and we have
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// to put it into string to get it back into jpeg. Blech.
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var tmpstr = "data:image/jpeg,";
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var img = new Image;
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var i;
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var qdv = new Uint8Array(draw_copy.data.src_bitmap.jpeg.data);
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for (i = 0; i < qdv.length; i++)
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{
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tmpstr += '%';
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if (qdv[i] < 16)
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tmpstr += '0';
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tmpstr += qdv[i].toString(16);
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}
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img.o =
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{ base: draw_copy.base,
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tag: "jpeg." + draw_copy.data.src_bitmap.surface_id,
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descriptor : draw_copy.data.src_bitmap.descriptor,
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sc : this,
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};
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img.onload = handle_draw_jpeg_onload;
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img.src = tmpstr;
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return true;
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}
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else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_BITMAP)
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{
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var canvas = this.surfaces[draw_copy.base.surface_id].canvas;
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if (! draw_copy.data.src_bitmap.bitmap)
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{
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this.log_err("null bitmap");
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return false;
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}
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var source_img = convert_spice_bitmap_to_web(canvas.context,
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draw_copy.data.src_bitmap.bitmap);
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if (! source_img)
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{
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this.log_warn("FIXME: Unable to interpret bitmap of format: " +
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draw_copy.data.src_bitmap.bitmap.format);
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return false;
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}
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return this.draw_copy_helper(
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{ base: draw_copy.base,
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src_area: draw_copy.data.src_area,
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image_data: source_img,
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tag: "bitmap." + draw_copy.data.src_bitmap.bitmap.format,
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has_alpha: draw_copy.data.src_bitmap.bitmap == SPICE_BITMAP_FMT_32BIT ? false : true,
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descriptor : draw_copy.data.src_bitmap.descriptor
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});
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}
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else if (draw_copy.data.src_bitmap.descriptor.type == SPICE_IMAGE_TYPE_LZ_RGB)
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{
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var canvas = this.surfaces[draw_copy.base.surface_id].canvas;
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if (! draw_copy.data.src_bitmap.lz_rgb)
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{
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this.log_err("null lz_rgb ");
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return false;
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}
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if (draw_copy.data.src_bitmap.lz_rgb.top_down != 1)
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this.log_warn("FIXME: Implement non top down support for lz_rgb");
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var source_img = convert_spice_lz_rgb_to_web(canvas.context,
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draw_copy.data.src_bitmap.lz_rgb);
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if (! source_img)
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{
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this.log_warn("FIXME: Unable to interpret bitmap of type: " +
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draw_copy.data.src_bitmap.lz_rgb.type);
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return false;
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}
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return this.draw_copy_helper(
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{ base: draw_copy.base,
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src_area: draw_copy.data.src_area,
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image_data: source_img,
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tag: "lz_rgb." + draw_copy.data.src_bitmap.lz_rgb.type,
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has_alpha: draw_copy.data.src_bitmap.lz_rgb.type == LZ_IMAGE_TYPE_RGBA ? true : false ,
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descriptor : draw_copy.data.src_bitmap.descriptor
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});
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}
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else
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{
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this.log_warn("FIXME: DrawCopy unhandled image type: " + draw_copy.data.src_bitmap.descriptor.type);
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this.log_draw("DrawCopy", draw_copy);
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return false;
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}
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}
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this.log_warn("FIXME: DrawCopy no src_bitmap.");
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return false;
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}
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if (msg.type == SPICE_MSG_DISPLAY_DRAW_FILL)
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{
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var draw_fill = new SpiceMsgDisplayDrawFill(msg.data);
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DEBUG > 1 && this.log_draw("DrawFill", draw_fill);
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if (draw_fill.data.rop_descriptor != SPICE_ROPD_OP_PUT)
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this.log_warn("FIXME: DrawFill we don't handle ropd type: " + draw_fill.data.rop_descriptor);
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if (draw_fill.data.mask.flags)
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this.log_warn("FIXME: DrawFill we don't handle mask flag: " + draw_fill.data.mask.flags);
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if (draw_fill.data.mask.bitmap)
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this.log_warn("FIXME: DrawFill we don't handle mask");
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if (draw_fill.data.brush.type == SPICE_BRUSH_TYPE_SOLID)
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{
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// FIXME - do brushes ever have alpha?
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var color = draw_fill.data.brush.color & 0xffffff;
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var color_str = "rgb(" + (color >> 16) + ", " + ((color >> 8) & 0xff) + ", " + (color & 0xff) + ")";
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this.surfaces[draw_fill.base.surface_id].canvas.context.fillStyle = color_str;
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this.surfaces[draw_fill.base.surface_id].canvas.context.fillRect(
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draw_fill.base.box.left, draw_fill.base.box.top,
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draw_fill.base.box.right - draw_fill.base.box.left,
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draw_fill.base.box.bottom - draw_fill.base.box.top);
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if (DUMP_DRAWS && this.parent.dump_id)
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{
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var debug_canvas = document.createElement("canvas");
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debug_canvas.setAttribute('width', this.surfaces[draw_fill.base.surface_id].canvas.width);
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debug_canvas.setAttribute('height', this.surfaces[draw_fill.base.surface_id].canvas.height);
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debug_canvas.setAttribute('id', "fillbrush." + draw_fill.base.surface_id + "." + this.surfaces[draw_fill.base.surface_id].draw_count);
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debug_canvas.getContext("2d").fillStyle = color_str;
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debug_canvas.getContext("2d").fillRect(
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draw_fill.base.box.left, draw_fill.base.box.top,
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draw_fill.base.box.right - draw_fill.base.box.left,
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draw_fill.base.box.bottom - draw_fill.base.box.top);
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document.getElementById(this.parent.dump_id).appendChild(debug_canvas);
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}
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this.surfaces[draw_fill.base.surface_id].draw_count++;
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}
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else
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{
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this.log_warn("FIXME: DrawFill can't handle brush type: " + draw_fill.data.brush.type);
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}
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return true;
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}
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if (msg.type == SPICE_MSG_DISPLAY_COPY_BITS)
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{
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var copy_bits = new SpiceMsgDisplayCopyBits(msg.data);
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DEBUG > 1 && this.log_draw("CopyBits", copy_bits);
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var source_canvas = this.surfaces[copy_bits.base.surface_id].canvas;
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var source_context = source_canvas.context;
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var width = source_canvas.width - copy_bits.src_pos.x;
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var height = source_canvas.height - copy_bits.src_pos.y;
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if (width > (copy_bits.base.box.right - copy_bits.base.box.left))
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width = copy_bits.base.box.right - copy_bits.base.box.left;
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if (height > (copy_bits.base.box.bottom - copy_bits.base.box.top))
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height = copy_bits.base.box.bottom - copy_bits.base.box.top;
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var source_img = source_context.getImageData(
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copy_bits.src_pos.x, copy_bits.src_pos.y, width, height);
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//source_context.putImageData(source_img, copy_bits.base.box.left, copy_bits.base.box.top);
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putImageDataWithAlpha(source_context, source_img, copy_bits.base.box.left, copy_bits.base.box.top);
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if (DUMP_DRAWS && this.parent.dump_id)
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{
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var debug_canvas = document.createElement("canvas");
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debug_canvas.setAttribute('width', width);
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debug_canvas.setAttribute('height', height);
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debug_canvas.setAttribute('id', "copybits" + copy_bits.base.surface_id + "." + this.surfaces[copy_bits.base.surface_id].draw_count);
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debug_canvas.getContext("2d").putImageData(source_img, 0, 0);
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document.getElementById(this.parent.dump_id).appendChild(debug_canvas);
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}
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this.surfaces[copy_bits.base.surface_id].draw_count++;
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return true;
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}
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if (msg.type == SPICE_MSG_DISPLAY_INVAL_ALL_PALETTES)
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{
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this.known_unimplemented(msg.type, "Inval All Palettes");
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return true;
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}
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if (msg.type == SPICE_MSG_DISPLAY_SURFACE_CREATE)
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{
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if (! ("surfaces" in this))
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this.surfaces = [];
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var m = new SpiceMsgSurfaceCreate(msg.data);
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DEBUG > 1 && console.log(this.type + ": MsgSurfaceCreate id " + m.surface.surface_id
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+ "; " + m.surface.width + "x" + m.surface.height
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+ "; format " + m.surface.format
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+ "; flags " + m.surface.flags);
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if (m.surface.format != SPICE_SURFACE_FMT_32_xRGB &&
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m.surface.format != SPICE_SURFACE_FMT_32_ARGB)
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{
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this.log_warn("FIXME: cannot handle surface format " + m.surface.format + " yet.");
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return false;
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}
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var canvas = document.createElement("canvas");
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canvas.setAttribute('width', m.surface.width);
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canvas.setAttribute('height', m.surface.height);
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canvas.setAttribute('id', "spice_surface_" + m.surface.surface_id);
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canvas.setAttribute('tabindex', m.surface.surface_id);
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canvas.context = canvas.getContext("2d");
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if (DUMP_CANVASES && this.parent.dump_id)
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document.getElementById(this.parent.dump_id).appendChild(canvas);
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m.surface.canvas = canvas;
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m.surface.draw_count = 0;
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this.surfaces[m.surface.surface_id] = m.surface;
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if (m.surface.flags & SPICE_SURFACE_FLAGS_PRIMARY)
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{
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this.primary_surface = m.surface.surface_id;
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/* This .save() is done entirely to enable SPICE_MSG_DISPLAY_RESET */
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canvas.context.save();
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global_ctx = canvas.context; // FIXME - this is a hack entirely for the emscripten quic.js
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document.getElementById(this.parent.screen_id).appendChild(canvas);
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document.getElementById(this.parent.screen_id).setAttribute('width', m.surface.width);
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document.getElementById(this.parent.screen_id).setAttribute('height', m.surface.height);
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this.hook_events();
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}
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return true;
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}
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if (msg.type == SPICE_MSG_DISPLAY_SURFACE_DESTROY)
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{
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var m = new SpiceMsgSurfaceDestroy(msg.data);
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DEBUG > 1 && console.log(this.type + ": MsgSurfaceDestroy id " + m.surface_id);
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this.delete_surface(m.surface_id);
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return true;
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}
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return false;
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}
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SpiceDisplayConn.prototype.delete_surface = function(surface_id)
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{
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var canvas = document.getElementById("spice_surface_" + surface_id);
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if (DUMP_CANVASES && this.parent.dump_id)
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document.getElementById(this.parent.dump_id).removeChild(canvas);
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if (this.primary_surface == surface_id)
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{
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this.unhook_events();
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this.primary_surface = undefined;
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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('mousewheel', 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('mousewheel', 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)
|
|
{
|
|
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;
|
|
|
|
context.drawImage(this, 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] =
|
|
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++;
|
|
}
|
|
}
|