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Remove stupid try catch from webgl_draw

ssao
A.Olokhtonov 7 months ago
parent
221e2a5aed
commit
48e9dd9a3e
1 changed files with 133 additions and 137 deletions
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  1. 268
      client/webgl_draw.js

268
client/webgl_draw.js
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@ -78,158 +78,154 @@ function draw_html(state) { @@ -78,158 +78,154 @@ function draw_html(state) {
async function draw(state, context) {
const cpu_before = performance.now();
try {
const gl = context.gl;
const width = window.innerWidth;
const height = window.innerHeight;
const gl = context.gl;
const width = window.innerWidth;
const height = window.innerHeight;
locations = context.locations['sdf'].main;
buffers = context.buffers['sdf'];
locations = context.locations['sdf'].main;
buffers = context.buffers['sdf'];
bvh_clip(state, context);
bvh_clip(state, context);
const segment_count = await geometry_write_instances(state, context);
const dynamic_segment_count = context.dynamic_segment_count;
const dynamic_stroke_count = context.dynamic_stroke_count;
const segment_count = await geometry_write_instances(state, context);
const dynamic_segment_count = context.dynamic_segment_count;
const dynamic_stroke_count = context.dynamic_stroke_count;
let query = null;
let query = null;
if (context.gpu_timer_ext !== null) {
query = gl.createQuery();
gl.beginQuery(context.gpu_timer_ext.TIME_ELAPSED_EXT, query);
}
if (context.gpu_timer_ext !== null) {
query = gl.createQuery();
gl.beginQuery(context.gpu_timer_ext.TIME_ELAPSED_EXT, query);
}
// Only clear once we have the data, this might not always be on the same frame?
gl.viewport(0, 0, context.canvas.width, context.canvas.height);
gl.clearColor(context.bgcolor.r, context.bgcolor.g, context.bgcolor.b, 1);
gl.clearDepth(0.0);
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
gl.useProgram(context.programs['sdf'].main);
// "Static" data upload
if (segment_count > 0) {
const total_static_size = context.instance_data_points.size * 4 +
context.instance_data_ids.size * 4 +
context.instance_data_pressures.size;
gl.bindBuffer(gl.ARRAY_BUFFER, buffers['b_instance']);
gl.bufferData(gl.ARRAY_BUFFER, total_static_size, gl.STREAM_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 0, tv_data(context.instance_data_points));
gl.bufferSubData(gl.ARRAY_BUFFER, context.instance_data_points.size * 4, tv_data(context.instance_data_ids));
gl.bufferSubData(gl.ARRAY_BUFFER, context.instance_data_points.size * 4 + context.instance_data_ids.size * 4,
tv_data(context.instance_data_pressures));
gl.bindTexture(gl.TEXTURE_2D, context.textures['stroke_data']);
upload_square_rgba16ui_texture(gl, context.stroke_data, config.stroke_texture_size);
gl.uniform2f(locations['u_res'], context.canvas.width, context.canvas.height);
gl.uniform2f(locations['u_scale'], state.canvas.zoom, state.canvas.zoom);
gl.uniform2f(locations['u_translation'], state.canvas.offset.x, state.canvas.offset.y);
gl.uniform1i(locations['u_stroke_count'], state.events.length);
gl.uniform1i(locations['u_debug_mode'], state.debug.red);
gl.uniform1i(locations['u_stroke_data'], 0);
gl.uniform1i(locations['u_stroke_texture_size'], config.stroke_texture_size);
gl.enableVertexAttribArray(locations['a_a']);
gl.enableVertexAttribArray(locations['a_b']);
gl.enableVertexAttribArray(locations['a_stroke_id']);
gl.enableVertexAttribArray(locations['a_pressure']);
// Points (a, b) and stroke ids are stored in separate cpu buffers so that points can be reused (look at stride and offset values)
gl.vertexAttribPointer(locations['a_a'], 2, gl.FLOAT, false, 2 * 4, 0);
gl.vertexAttribPointer(locations['a_b'], 2, gl.FLOAT, false, 2 * 4, 2 * 4);
gl.vertexAttribIPointer(locations['a_stroke_id'], 1, gl.INT, 4, context.instance_data_points.size * 4);
gl.vertexAttribPointer(locations['a_pressure'], 2, gl.UNSIGNED_BYTE, true, 1, context.instance_data_points.size * 4 + context.instance_data_ids.size * 4);
gl.vertexAttribDivisor(locations['a_a'], 1);
gl.vertexAttribDivisor(locations['a_b'], 1);
gl.vertexAttribDivisor(locations['a_stroke_id'], 1);
gl.vertexAttribDivisor(locations['a_pressure'], 1);
// Static draw (everything already bound)
gl.drawArraysInstanced(gl.TRIANGLES, 0, 6, segment_count);
}
// Only clear once we have the data, this might not always be on the same frame?
gl.viewport(0, 0, context.canvas.width, context.canvas.height);
gl.clearColor(context.bgcolor.r, context.bgcolor.g, context.bgcolor.b, 1);
gl.clearDepth(0.0);
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
gl.useProgram(context.programs['sdf'].main);
// "Static" data upload
if (segment_count > 0) {
const total_static_size = context.instance_data_points.size * 4 +
context.instance_data_ids.size * 4 +
context.instance_data_pressures.size;
gl.bindBuffer(gl.ARRAY_BUFFER, buffers['b_instance']);
gl.bufferData(gl.ARRAY_BUFFER, total_static_size, gl.STREAM_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 0, tv_data(context.instance_data_points));
gl.bufferSubData(gl.ARRAY_BUFFER, context.instance_data_points.size * 4, tv_data(context.instance_data_ids));
gl.bufferSubData(gl.ARRAY_BUFFER, context.instance_data_points.size * 4 + context.instance_data_ids.size * 4,
tv_data(context.instance_data_pressures));
gl.bindTexture(gl.TEXTURE_2D, context.textures['stroke_data']);
upload_square_rgba16ui_texture(gl, context.stroke_data, config.stroke_texture_size);
gl.uniform2f(locations['u_res'], context.canvas.width, context.canvas.height);
gl.uniform2f(locations['u_scale'], state.canvas.zoom, state.canvas.zoom);
gl.uniform2f(locations['u_translation'], state.canvas.offset.x, state.canvas.offset.y);
gl.uniform1i(locations['u_stroke_count'], state.events.length);
gl.uniform1i(locations['u_debug_mode'], state.debug.red);
gl.uniform1i(locations['u_stroke_data'], 0);
gl.uniform1i(locations['u_stroke_texture_size'], config.stroke_texture_size);
gl.enableVertexAttribArray(locations['a_a']);
gl.enableVertexAttribArray(locations['a_b']);
gl.enableVertexAttribArray(locations['a_stroke_id']);
gl.enableVertexAttribArray(locations['a_pressure']);
// Points (a, b) and stroke ids are stored in separate cpu buffers so that points can be reused (look at stride and offset values)
gl.vertexAttribPointer(locations['a_a'], 2, gl.FLOAT, false, 2 * 4, 0);
gl.vertexAttribPointer(locations['a_b'], 2, gl.FLOAT, false, 2 * 4, 2 * 4);
gl.vertexAttribIPointer(locations['a_stroke_id'], 1, gl.INT, 4, context.instance_data_points.size * 4);
gl.vertexAttribPointer(locations['a_pressure'], 2, gl.UNSIGNED_BYTE, true, 1, context.instance_data_points.size * 4 + context.instance_data_ids.size * 4);
gl.vertexAttribDivisor(locations['a_a'], 1);
gl.vertexAttribDivisor(locations['a_b'], 1);
gl.vertexAttribDivisor(locations['a_stroke_id'], 1);
gl.vertexAttribDivisor(locations['a_pressure'], 1);
// Static draw (everything already bound)
gl.drawArraysInstanced(gl.TRIANGLES, 0, 6, segment_count);
}
// Dynamic strokes should be drawn above static strokes
gl.clear(gl.DEPTH_BUFFER_BIT);
// Dynamic draw (strokes currently being drawn)
if (dynamic_segment_count > 0) {
gl.uniform1i(locations['u_stroke_count'], dynamic_stroke_count);
gl.uniform1i(locations['u_stroke_data'], 0);
gl.uniform1i(locations['u_stroke_texture_size'], config.dynamic_stroke_texture_size);
gl.bindBuffer(gl.ARRAY_BUFFER, buffers['b_dynamic_instance']);
// Dynamic data upload
const total_dynamic_size =
context.dynamic_instance_points.size * 4 + context.dynamic_instance_ids.size * 4 +
context.dynamic_instance_pressure.size;
gl.bufferData(gl.ARRAY_BUFFER, total_dynamic_size, gl.STREAM_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 0, tv_data(context.dynamic_instance_points));
gl.bufferSubData(gl.ARRAY_BUFFER, context.dynamic_instance_points.size * 4, tv_data(context.dynamic_instance_ids));
gl.bufferSubData(gl.ARRAY_BUFFER, context.dynamic_instance_points.size * 4 + context.dynamic_instance_ids.size * 4,
tv_data(context.dynamic_instance_pressure));
gl.bindTexture(gl.TEXTURE_2D, context.textures['dynamic_stroke_data']);
upload_square_rgba16ui_texture(gl, context.dynamic_stroke_data, config.dynamic_stroke_texture_size);
gl.enableVertexAttribArray(locations['a_a']);
gl.enableVertexAttribArray(locations['a_b']);
gl.enableVertexAttribArray(locations['a_stroke_id']);
gl.enableVertexAttribArray(locations['a_pressure']);
// Points (a, b) and stroke ids are stored in separate cpu buffers so that points can be reused (look at stride and offset values)
gl.vertexAttribPointer(locations['a_a'], 2, gl.FLOAT, false, 2 * 4, 0);
gl.vertexAttribPointer(locations['a_b'], 2, gl.FLOAT, false, 2 * 4, 2 * 4);
gl.vertexAttribIPointer(locations['a_stroke_id'], 1, gl.INT, 4, context.dynamic_instance_points.size * 4);
gl.vertexAttribPointer(locations['a_pressure'], 2, gl.UNSIGNED_BYTE, true, 1, context.dynamic_instance_points.size * 4 + context.dynamic_instance_ids.size * 4);
gl.vertexAttribDivisor(locations['a_a'], 1);
gl.vertexAttribDivisor(locations['a_b'], 1);
gl.vertexAttribDivisor(locations['a_stroke_id'], 1);
gl.vertexAttribDivisor(locations['a_pressure'], 1);
gl.drawArraysInstanced(gl.TRIANGLES, 0, 6, dynamic_segment_count);
}
// Dynamic strokes should be drawn above static strokes
gl.clear(gl.DEPTH_BUFFER_BIT);
// Dynamic draw (strokes currently being drawn)
if (dynamic_segment_count > 0) {
gl.uniform1i(locations['u_stroke_count'], dynamic_stroke_count);
gl.uniform1i(locations['u_stroke_data'], 0);
gl.uniform1i(locations['u_stroke_texture_size'], config.dynamic_stroke_texture_size);
gl.bindBuffer(gl.ARRAY_BUFFER, buffers['b_dynamic_instance']);
// Dynamic data upload
const total_dynamic_size =
context.dynamic_instance_points.size * 4 + context.dynamic_instance_ids.size * 4 +
context.dynamic_instance_pressure.size;
gl.bufferData(gl.ARRAY_BUFFER, total_dynamic_size, gl.STREAM_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 0, tv_data(context.dynamic_instance_points));
gl.bufferSubData(gl.ARRAY_BUFFER, context.dynamic_instance_points.size * 4, tv_data(context.dynamic_instance_ids));
gl.bufferSubData(gl.ARRAY_BUFFER, context.dynamic_instance_points.size * 4 + context.dynamic_instance_ids.size * 4,
tv_data(context.dynamic_instance_pressure));
gl.bindTexture(gl.TEXTURE_2D, context.textures['dynamic_stroke_data']);
upload_square_rgba16ui_texture(gl, context.dynamic_stroke_data, config.dynamic_stroke_texture_size);
gl.enableVertexAttribArray(locations['a_a']);
gl.enableVertexAttribArray(locations['a_b']);
gl.enableVertexAttribArray(locations['a_stroke_id']);
gl.enableVertexAttribArray(locations['a_pressure']);
// Points (a, b) and stroke ids are stored in separate cpu buffers so that points can be reused (look at stride and offset values)
gl.vertexAttribPointer(locations['a_a'], 2, gl.FLOAT, false, 2 * 4, 0);
gl.vertexAttribPointer(locations['a_b'], 2, gl.FLOAT, false, 2 * 4, 2 * 4);
gl.vertexAttribIPointer(locations['a_stroke_id'], 1, gl.INT, 4, context.dynamic_instance_points.size * 4);
gl.vertexAttribPointer(locations['a_pressure'], 2, gl.UNSIGNED_BYTE, true, 1, context.dynamic_instance_points.size * 4 + context.dynamic_instance_ids.size * 4);
gl.vertexAttribDivisor(locations['a_a'], 1);
gl.vertexAttribDivisor(locations['a_b'], 1);
gl.vertexAttribDivisor(locations['a_stroke_id'], 1);
gl.vertexAttribDivisor(locations['a_pressure'], 1);
gl.drawArraysInstanced(gl.TRIANGLES, 0, 6, dynamic_segment_count);
}
document.getElementById('debug-stats').innerHTML = `
document.getElementById('debug-stats').innerHTML = `
<span>Segments onscreen: ${segment_count}</span>
<span>Canvas offset: (${Math.round(state.canvas.offset.x * 100) / 100}, ${Math.round(state.canvas.offset.y * 100) / 100})</span>
<span>Canvas zoom level: ${state.canvas.zoom_level}</span>
<span>Canvas zoom: ${Math.round(state.canvas.zoom * 100) / 100}</span>`;
if (context.gpu_timer_ext) {
gl.endQuery(context.gpu_timer_ext.TIME_ELAPSED_EXT);
const next_tick = () => {
if (query) {
// At some point in the future, after returning control to the browser
const available = gl.getQueryParameter(query, gl.QUERY_RESULT_AVAILABLE);
const disjoint = gl.getParameter(context.gpu_timer_ext.GPU_DISJOINT_EXT);
if (available && !disjoint) {
// See how much time the rendering of the object took in nanoseconds.
const timeElapsed = gl.getQueryParameter(query, gl.QUERY_RESULT);
//console.debug(timeElapsed / 1000000);
document.querySelector('.debug-timings .gpu').innerHTML = 'Last GPU Frametime: ' + Math.round(timeElapsed / 10000) / 100 + 'ms';
}
if (available || disjoint) {
// Clean up the query object.
gl.deleteQuery(query);
// Don't re-enter this polling loop.
query = null;
} else if (!available) {
setTimeout(next_tick, 0);
}
if (context.gpu_timer_ext) {
gl.endQuery(context.gpu_timer_ext.TIME_ELAPSED_EXT);
const next_tick = () => {
if (query) {
// At some point in the future, after returning control to the browser
const available = gl.getQueryParameter(query, gl.QUERY_RESULT_AVAILABLE);
const disjoint = gl.getParameter(context.gpu_timer_ext.GPU_DISJOINT_EXT);
if (available && !disjoint) {
// See how much time the rendering of the object took in nanoseconds.
const timeElapsed = gl.getQueryParameter(query, gl.QUERY_RESULT);
//console.debug(timeElapsed / 1000000);
document.querySelector('.debug-timings .gpu').innerHTML = 'Last GPU Frametime: ' + Math.round(timeElapsed / 10000) / 100 + 'ms';
}
}
setTimeout(next_tick, 0);
if (available || disjoint) {
// Clean up the query object.
gl.deleteQuery(query);
// Don't re-enter this polling loop.
query = null;
} else if (!available) {
setTimeout(next_tick, 0);
}
}
}
} catch (e) {
console.error('Draw failed:', e);
setTimeout(next_tick, 0);
}
const cpu_after = performance.now();

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