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broadway: Support patching nodes for textures and transforms

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This commit is contained in:
Alexander Larsson 2019-03-28 20:22:44 +01:00
parent f30ba56323
commit b58a366dc6
3 changed files with 111 additions and 21 deletions
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54
gdk/broadway/broadway-output.c
View File

@ -387,6 +387,58 @@ append_node (BroadwayOutput *output,
append_node_depth--;
}
static gboolean
should_reuse_node (BroadwayOutput *output,
BroadwayNode *node,
BroadwayNode *old_node)
{
int i;
guint32 new_texture;
if (old_node->reused)
return FALSE;
if (node->type != old_node->type)
return FALSE;
if (broadway_node_equal (node, old_node))
return TRUE;
switch (node->type) {
case BROADWAY_NODE_TRANSFORM:
#ifdef DEBUG_NODE_SENDING
g_print ("Patching transform node %d/%d\n",
old_node->id, old_node->output_id);
#endif
append_uint32 (output, BROADWAY_NODE_OP_PATCH_TRANSFORM);
append_uint32 (output, old_node->output_id);
for (i = 0; i < node->n_data; i++)
append_uint32 (output, node->data[i]);
return TRUE;
case BROADWAY_NODE_TEXTURE:
/* Check that the size, etc is the same */
for (i = 0; i < 4; i++)
if (node->data[i] != old_node->data[i])
return FALSE;
new_texture = node->data[4];
#ifdef DEBUG_NODE_SENDING
g_print ("Patching texture node %d/%d to tx=%d\n",
old_node->id, old_node->output_id,
new_texture);
#endif
append_uint32 (output, BROADWAY_NODE_OP_PATCH_TEXTURE);
append_uint32 (output, old_node->output_id);
append_uint32 (output, new_texture);
return TRUE;
break;
default:
return FALSE;
}
}
static BroadwayNode *
append_node_ops (BroadwayOutput *output,
@ -441,7 +493,7 @@ append_node_ops (BroadwayOutput *output,
* Except we avoid this for reused node as those make more sense to reuse deeply.
*/
if (old_node && broadway_node_equal (node, old_node) && !old_node->reused)
if (old_node && should_reuse_node (output, node, old_node))
{
int old_i = 0;
BroadwayNode *last_child = NULL;

2
gdk/broadway/broadway-protocol.h
View File

@ -29,6 +29,8 @@ typedef enum { /* Sync changes with broadway.js */
BROADWAY_NODE_OP_INSERT_NODE = 0,
BROADWAY_NODE_OP_REMOVE_NODE = 1,
BROADWAY_NODE_OP_MOVE_AFTER_CHILD = 2,
BROADWAY_NODE_OP_PATCH_TEXTURE = 3,
BROADWAY_NODE_OP_PATCH_TRANSFORM = 4,
} BroadwayNodeOpType;
static const char *broadway_node_type_names[] G_GNUC_UNUSED = {

76
gdk/broadway/broadway.js
View File

@ -18,6 +18,8 @@ const BROADWAY_NODE_REUSE = 13;
const BROADWAY_NODE_OP_INSERT_NODE = 0;
const BROADWAY_NODE_OP_REMOVE_NODE = 1;
const BROADWAY_NODE_OP_MOVE_AFTER_CHILD = 2;
const BROADWAY_NODE_OP_PATCH_TEXTURE = 3;
const BROADWAY_NODE_OP_PATCH_TRANSFORM = 4;
const BROADWAY_OP_GRAB_POINTER = 'g';
const BROADWAY_OP_UNGRAB_POINTER = 'u';
@ -67,6 +69,8 @@ const DISPLAY_OP_MOVE_NODE = 7;
const DISPLAY_OP_RESIZE_NODE = 8;
const DISPLAY_OP_RESTACK_SURFACES = 9;
const DISPLAY_OP_DELETE_SURFACE = 10;
const DISPLAY_OP_CHANGE_TEXTURE = 11;
const DISPLAY_OP_CHANGE_TRANSFORM = 12;
// GdkCrossingMode
const GDK_CROSSING_NORMAL = 0;
@ -446,6 +450,28 @@ TransformNodes.prototype.decode_string = function() {
return utf8_to_string (utf8);
}
TransformNodes.prototype.decode_transform = function() {
var transform_type = this.decode_uint32();
if (transform_type == 0) {
var point = this.decode_point();
return "translate(" + px(point.x) + "," + px(point.y) + ")";
} else if (transform_type == 1) {
var m = new Array();
for (var i = 0; i < 16; i++) {
m[i] = this.decode_float ();
}
return "matrix3d(" +
m[0] + "," + m[1] + "," + m[2] + "," + m[3]+ "," +
m[4] + "," + m[5] + "," + m[6] + "," + m[7] + "," +
m[8] + "," + m[9] + "," + m[10] + "," + m[11] + "," +
m[12] + "," + m[13] + "," + m[14] + "," + m[15] + ")";
} else {
alert("Unexpected transform type " + transform_type);
}
}
function args() {
var argsLength = arguments.length;
var strings = [];
@ -654,25 +680,7 @@ TransformNodes.prototype.insertNode = function(parent, previousSibling, is_tople
case BROADWAY_NODE_TRANSFORM:
{
var transform_type = this.decode_uint32();
var transform_string;
if (transform_type == 0) {
var point = this.decode_point();
transform_string = "translate(" + px(point.x) + "," + px(point.y) + ")";
} else if (transform_type == 1) {
var m = new Array();
for (var i = 0; i < 16; i++) {
m[i] = this.decode_float ();
}
transform_string =
"matrix3d(" +
m[0] + "," + m[1] + "," + m[2] + "," + m[3]+ "," +
m[4] + "," + m[5] + "," + m[6] + "," + m[7] + "," +
m[8] + "," + m[9] + "," + m[10] + "," + m[11] + "," +
m[12] + "," + m[13] + "," + m[14] + "," + m[15] + ")";
}
var transform_string = this.decode_transform();
var div = this.createDiv(id);
div.style["transform"] = transform_string;
@ -832,7 +840,21 @@ TransformNodes.prototype.execute = function(display_commands)
var toMove = this.nodes[toMoveId];
this.display_commands.push([DISPLAY_OP_INSERT_AFTER_CHILD, parent, previousChild, toMove]);
break;
case BROADWAY_NODE_OP_PATCH_TEXTURE:
var textureNodeId = this.decode_uint32();
var textureNode = this.nodes[textureNodeId];
var textureId = this.decode_uint32();
var texture = textures[textureId].ref();
this.display_commands.push([DISPLAY_OP_CHANGE_TEXTURE, textureNode, texture]);
break;
case BROADWAY_NODE_OP_PATCH_TRANSFORM:
var transformNodeId = this.decode_uint32();
var transformNode = this.nodes[transformNodeId];
var transformString = this.decode_transform();
this.display_commands.push([DISPLAY_OP_CHANGE_TRANSFORM, transformNode, transformString]);
break;
}
}
}
@ -909,7 +931,21 @@ function handleDisplayCommands(display_commands)
var id = cmd[1];
delete surfaces[id];
break;
case DISPLAY_OP_CHANGE_TEXTURE:
var image = cmd[1];
var texture = cmd[2];
// We need a new closure here to have a separate copy of "template" for each iteration...
function a_block(t) {
image.src = t.url;
// Unref blob url when loaded
image.onload = function() { t.unref(); };
}(texture);
break;
case DISPLAY_OP_CHANGE_TRANSFORM:
var div = cmd[1];
var transform_string = cmd[2];
div.style["transform"] = transform_string;
break;
default:
alert("Unknown display op " + command);
}