diff options
Diffstat (limited to 'spicetype.js')
| -rw-r--r-- | spicetype.js | 455 |
1 files changed, 455 insertions, 0 deletions
diff --git a/spicetype.js b/spicetype.js new file mode 100644 index 0000000..f7c9661 --- /dev/null +++ b/spicetype.js @@ -0,0 +1,455 @@ +"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/>. +*/ + +/*---------------------------------------------------------------------------- +** Spice types +** This file contains classes for common spice types. +** Generally, they are used as helpers in reading and writing messages +** to and from the server. +**--------------------------------------------------------------------------*/ + +function SpiceChannelId() +{ +} +SpiceChannelId.prototype = +{ + from_dv: function(dv, at, mb) + { + this.type = dv.getUint8(at, true); at ++; + this.id = dv.getUint8(at, true); at ++; + return at; + }, +} + +function SpiceRect() +{ +} + +SpiceRect.prototype = +{ + from_dv: function(dv, at, mb) + { + this.top = dv.getUint32(at, true); at += 4; + this.left = dv.getUint32(at, true); at += 4; + this.bottom = dv.getUint32(at, true); at += 4; + this.right = dv.getUint32(at, true); at += 4; + return at; + }, + is_same_size : function(r) + { + if ((this.bottom - this.top) == (r.bottom - r.top) && + (this.right - this.left) == (r.right - r.left) ) + return true; + + return false; + }, +} + +function SpiceClipRects() +{ +} + +SpiceClipRects.prototype = +{ + from_dv: function(dv, at, mb) + { + var i; + this.num_rects = dv.getUint32(at, true); at += 4; + if (this.num_rects > 0) + this.rects = []; + for (i = 0; i < this.num_rects; i++) + { + this.rects[i] = new SpiceRect(); + at = this.rects[i].from_dv(dv, at, mb); + } + return at; + }, +} + +function SpiceClip() +{ +} + +SpiceClip.prototype = +{ + from_dv: function(dv, at, mb) + { + this.type = dv.getUint8(at, true); at ++; + if (this.type == SPICE_CLIP_TYPE_RECTS) + { + this.rects = new SpiceClipRects(); + at = this.rects.from_dv(dv, at, mb); + } + return at; + }, +} + +function SpiceImageDescriptor() +{ +} + +SpiceImageDescriptor.prototype = +{ + from_dv: function(dv, at, mb) + { + this.id = dv.getUint32(at, true); at += 4; + this.id += (dv.getUint32(at, true) << 32); at += 4; + this.type = dv.getUint8(at, true); at ++; + this.flags = dv.getUint8(at, true); at ++; + this.width = dv.getUint32(at, true); at += 4; + this.height= dv.getUint32(at, true); at += 4; + return at; + }, +} + +function SpicePalette() +{ +} + +SpicePalette.prototype = +{ + from_dv: function(dv, at, mb) + { + var i; + this.unique = []; + this.unique[0] = dv.getUint32(at, true); at += 4; + this.unique[1] = dv.getUint32(at, true); at += 4; + this.num_ents = dv.getUint16(at, true); at += 2; + this.ents = []; + for (i = 0; i < this.num_ents; i++) + { + this.ents[i] = dv.getUint32(at, true); at += 4; + } + return at; + }, +} + +function SpiceBitmap() +{ +} + +SpiceBitmap.prototype = +{ + from_dv: function(dv, at, mb) + { + this.format = dv.getUint8(at, true); at++; + this.flags = dv.getUint8(at, true); at++; + this.x = dv.getUint32(at, true); at += 4; + this.y = dv.getUint32(at, true); at += 4; + this.stride = dv.getUint32(at, true); at += 4; + if (this.flags & SPICE_BITMAP_FLAGS_PAL_FROM_CACHE) + { + this.palette_id = []; + this.palette_id[0] = dv.getUint32(at, true); at += 4; + this.palette_id[1] = dv.getUint32(at, true); at += 4; + } + else + { + var offset = dv.getUint32(at, true); at += 4; + if (offset == 0) + this.palette = null; + else + { + this.palette = new SpicePalette; + this.palette.from_dv(dv, offset, mb); + } + } + // FIXME - should probably constrain this to the offset + // of palette, if non zero + this.data = mb.slice(at); + at += this.data.byteLength; + return at; + }, +} + +function SpiceImage() +{ +} + +SpiceImage.prototype = +{ + from_dv: function(dv, at, mb) + { + this.descriptor = new SpiceImageDescriptor; + at = this.descriptor.from_dv(dv, at, mb); + + if (this.descriptor.type == SPICE_IMAGE_TYPE_LZ_RGB) + { + this.lz_rgb = new Object(); + this.lz_rgb.length = dv.getUint32(at, true); at += 4; + var initial_at = at; + this.lz_rgb.magic = ""; + for (var i = 3; i >= 0; i--) + this.lz_rgb.magic += String.fromCharCode(dv.getUint8(at + i)); + at += 4; + + // NOTE: The endian change is *correct* + this.lz_rgb.version = dv.getUint32(at); at += 4; + this.lz_rgb.type = dv.getUint32(at); at += 4; + this.lz_rgb.width = dv.getUint32(at); at += 4; + this.lz_rgb.height = dv.getUint32(at); at += 4; + this.lz_rgb.stride = dv.getUint32(at); at += 4; + this.lz_rgb.top_down = dv.getUint32(at); at += 4; + + var header_size = at - initial_at; + + this.lz_rgb.data = mb.slice(at, this.lz_rgb.length + at - header_size); + at += this.lz_rgb.data.byteLength; + + } + + if (this.descriptor.type == SPICE_IMAGE_TYPE_BITMAP) + { + this.bitmap = new SpiceBitmap; + at = this.bitmap.from_dv(dv, at, mb); + } + + if (this.descriptor.type == SPICE_IMAGE_TYPE_SURFACE) + { + this.surface_id = dv.getUint32(at, true); at += 4; + } + + if (this.descriptor.type == SPICE_IMAGE_TYPE_JPEG) + { + this.jpeg = new Object; + this.jpeg.data_size = dv.getUint32(at, true); at += 4; + this.jpeg.data = mb.slice(at); + at += this.jpeg.data.byteLength; + } + + if (this.descriptor.type == SPICE_IMAGE_TYPE_QUIC) + { + var tmparr = []; + var i; + this.quicr_length = dv.getUint32(at, true); at += 4; + var qdv = new Uint8Array(mb.slice(at)); + for (i = 0; i < qdv.length; i++) + tmparr[i] = qdv[i]; + this.quic = getQuic(tmparr); + at += qdv.length; + } + return at; + }, +} + + +function SpiceQMask() +{ +} + +SpiceQMask.prototype = +{ + from_dv: function(dv, at, mb) + { + this.flags = dv.getUint8(at, true); at++; + this.pos = new SpicePoint; + at = this.pos.from_dv(dv, at, mb); + var offset = dv.getUint32(at, true); at += 4; + if (offset == 0) + { + this.bitmap = null; + return at; + } + + this.bitmap = new SpiceImage; + return this.bitmap.from_dv(dv, offset, mb); + }, +} + + +function SpicePattern() +{ +} + +SpicePattern.prototype = +{ + from_dv: function(dv, at, mb) + { + var offset = dv.getUint32(at, true); at += 4; + if (offset == 0) + { + this.pat = null; + } + else + { + this.pat = new SpiceImage; + this.pat.from_dv(dv, offset, mb); + } + + this.pos = new SpicePoint; + return this.pos.from_dv(dv, at, mb); + } +} + +function SpiceBrush() +{ +} + +SpiceBrush.prototype = +{ + from_dv: function(dv, at, mb) + { + this.type = dv.getUint8(at, true); at ++; + if (this.type == SPICE_BRUSH_TYPE_SOLID) + { + this.color = dv.getUint32(at, true); at += 4; + } + else if (this.type == SPICE_BRUSH_TYPE_PATTERN) + { + this.pattern = new SpicePattern; + at = this.pattern.from_dv(dv, at, mb); + } + return at; + }, +} + +function SpiceFill() +{ +} + +SpiceFill.prototype = +{ + from_dv: function(dv, at, mb) + { + this.brush = new SpiceBrush; + at = this.brush.from_dv(dv, at, mb); + this.rop_descriptor = dv.getUint16(at, true); at += 2; + this.mask = new SpiceQMask; + return this.mask.from_dv(dv, at, mb); + }, +} + + +function SpiceCopy() +{ +} + +SpiceCopy.prototype = +{ + from_dv: function(dv, at, mb) + { + var offset = dv.getUint32(at, true); at += 4; + if (offset == 0) + { + this.src_bitmap = null; + } + else + { + this.src_bitmap = new SpiceImage; + this.src_bitmap.from_dv(dv, offset, mb); + } + this.src_area = new SpiceRect; + at = this.src_area.from_dv(dv, at, mb); + this.rop_descriptor = dv.getUint16(at, true); at += 2; + this.scale_mode = dv.getUint8(at, true); at ++; + this.mask = new SpiceQMask; + return this.mask.from_dv(dv, at, mb); + }, +} + +function SpicePoint16() +{ +} + +SpicePoint16.prototype = +{ + from_dv: function(dv, at, mb) + { + this.x = dv.getUint16(at, true); at += 2; + this.y = dv.getUint16(at, true); at += 2; + return at; + }, +} + +function SpicePoint() +{ +} + +SpicePoint.prototype = +{ + from_dv: function(dv, at, mb) + { + this.x = dv.getUint32(at, true); at += 4; + this.y = dv.getUint32(at, true); at += 4; + return at; + }, +} + +function SpiceCursorHeader() +{ +} + +SpiceCursorHeader.prototype = +{ + from_dv: function(dv, at, mb) + { + this.unique = []; + this.unique[0] = dv.getUint32(at, true); at += 4; + this.unique[1] = dv.getUint32(at, true); at += 4; + this.type = dv.getUint8(at, true); at ++; + this.width = dv.getUint16(at, true); at += 2; + this.height = dv.getUint16(at, true); at += 2; + this.hot_spot_x = dv.getUint16(at, true); at += 2; + this.hot_spot_y = dv.getUint16(at, true); at += 2; + return at; + }, +} + +function SpiceCursor() +{ +} + +SpiceCursor.prototype = +{ + from_dv: function(dv, at, mb) + { + this.flags = dv.getUint16(at, true); at += 2; + if (this.flags & SPICE_CURSOR_FLAGS_NONE) + this.header = null; + else + { + this.header = new SpiceCursorHeader; + at = this.header.from_dv(dv, at, mb); + this.data = mb.slice(at); + at += this.data.byteLength; + } + return at; + }, +} + +function SpiceSurface() +{ +} + +SpiceSurface.prototype = +{ + from_dv: function(dv, at, mb) + { + this.surface_id = dv.getUint32(at, true); at += 4; + this.width = dv.getUint32(at, true); at += 4; + this.height = dv.getUint32(at, true); at += 4; + this.format = dv.getUint32(at, true); at += 4; + this.flags = dv.getUint32(at, true); at += 4; + return at; + }, +} + +/* FIXME - SpiceImage types lz_plt, jpeg, zlib_glz, and jpeg_alpha are + completely unimplemented */ |