encounter/dawn-cmake
1
0
Fork 0
mirror of https://github.com/encounter/dawn-cmake.git synced 2025-12-09 13:38:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

writer/hlsl: Simplify UBO accesses for static indexing

Browse Source 
Use the new semantic constant value information to significantly reduce the complex indexing logic emitted for UBO accesses.
This will dramatically reduce the number of `for` loops that are decayed to `while` loops.

Change-Id: I1b0adb5edde2b4ed39c6beafc2e28106b86e0edd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57701
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
This commit is contained in:
Ben Clayton
2021-07-13 12:18:13 +00:00
parent 71f619b6f1
commit 51cfe26bb7
46 changed files with 1712 additions and 191 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
test/samples/compute_boids.wgsl.expected.hlsl
View File

@@ -59,17 +59,14 @@ void comp_main(tint_symbol_5 tint_symbol_4) {
}
pos = asfloat(particlesA.Load2((16u * i))).xy;
vel = asfloat(particlesA.Load2(((16u * i) + 8u))).xy;
const uint scalar_offset = (4u) / 4;
if ((distance(pos, vPos) < asfloat(params[scalar_offset / 4][scalar_offset % 4]))) {
if ((distance(pos, vPos) < asfloat(params[0].y))) {
cMass = (cMass + pos);
cMassCount = (cMassCount + 1);
}
const uint scalar_offset_1 = (8u) / 4;
if ((distance(pos, vPos) < asfloat(params[scalar_offset_1 / 4][scalar_offset_1 % 4]))) {
if ((distance(pos, vPos) < asfloat(params[0].z))) {
colVel = (colVel - (pos - vPos));
}
const uint scalar_offset_2 = (12u) / 4;
if ((distance(pos, vPos) < asfloat(params[scalar_offset_2 / 4][scalar_offset_2 % 4]))) {
if ((distance(pos, vPos) < asfloat(params[0].w))) {
cVel = (cVel + vel);
cVelCount = (cVelCount + 1);
}
@@ -81,13 +78,9 @@ void comp_main(tint_symbol_5 tint_symbol_4) {
if ((cVelCount > 0)) {
cVel = (cVel / float2(float(cVelCount), float(cVelCount)));
}
const uint scalar_offset_3 = (16u) / 4;
const uint scalar_offset_4 = (20u) / 4;
const uint scalar_offset_5 = (24u) / 4;
vVel = (((vVel + (cMass * asfloat(params[scalar_offset_3 / 4][scalar_offset_3 % 4]))) + (colVel * asfloat(params[scalar_offset_4 / 4][scalar_offset_4 % 4]))) + (cVel * asfloat(params[scalar_offset_5 / 4][scalar_offset_5 % 4])));
vVel = (((vVel + (cMass * asfloat(params[1].x))) + (colVel * asfloat(params[1].y))) + (cVel * asfloat(params[1].z)));
vVel = (normalize(vVel) * clamp(length(vVel), 0.0f, 0.100000001f));
const uint scalar_offset_6 = (0u) / 4;
vPos = (vPos + (vVel * asfloat(params[scalar_offset_6 / 4][scalar_offset_6 % 4])));
vPos = (vPos + (vVel * asfloat(params[0].x)));
if ((vPos.x < -1.0f)) {
vPos.x = 1.0f;
}