encounter/dawn-cmake
1
0
Fork 0
mirror of https://github.com/encounter/dawn-cmake.git synced 2025-12-13 15:16:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove explicit usage transition from the API and validation

Browse Source 
This removes the following for both Buffer and Texture:
 - The builder's SetInitialUsage
 - The object's FreezeUsage and TransitionUsage methods
 - The CommandBuffer Transition<Object>Usage methods

All samples and tests are simplified as a result. This also obsoletes
the UsageValidationTest which is removed.

Some validation was dependent on "current usage" and hasn't been
reintroduced for implicit transitions yet:
 - Buffers can be used while mapped
 - Swapchain textures can be used after they have been presented.

Validation for these will involve collecting all the resources used by a
command buffer and will be done in a follow-up patch.
This commit is contained in:
Corentin Wallez
2018-07-09 15:15:07 +02:00
committed by Corentin Wallez
parent d2312e8138
commit d8c068fb4f
67 changed files with 143 additions and 1012 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
examples/ComputeBoids.cpp
View File

@@ -63,10 +63,10 @@ void initBuffers() {
{0.01, -0.02},
{0.00, 0.02},
};
modelBuffer = utils::CreateFrozenBufferFromData(device, model, sizeof(model), nxt::BufferUsageBit::Vertex);
modelBuffer = utils::CreateBufferFromData(device, model, sizeof(model), nxt::BufferUsageBit::Vertex);
SimParams params = { 0.04f, 0.1f, 0.025f, 0.025f, 0.02f, 0.05f, 0.005f, kNumParticles };
updateParams = utils::CreateFrozenBufferFromData(device, &params, sizeof(params), nxt::BufferUsageBit::Uniform);
updateParams = utils::CreateBufferFromData(device, &params, sizeof(params), nxt::BufferUsageBit::Uniform);
std::vector<Particle> initialParticles(kNumParticles);
{
@@ -82,7 +82,6 @@ void initBuffers() {
for (size_t i = 0; i < 2; i++) {
particleBuffers[i] = device.CreateBufferBuilder()
.SetAllowedUsage(nxt::BufferUsageBit::TransferDst | nxt::BufferUsageBit::Vertex | nxt::BufferUsageBit::Storage)
.SetInitialUsage(nxt::BufferUsageBit::TransferDst)
.SetSize(sizeof(Particle) * kNumParticles)
.GetResult();
@@ -261,20 +260,16 @@ void initSim() {
nxt::CommandBuffer createCommandBuffer(const nxt::RenderPassDescriptor& renderPass, size_t i) {
static const uint32_t zeroOffsets[1] = {0};
auto& bufferSrc = particleBuffers[i];
auto& bufferDst = particleBuffers[(i + 1) % 2];
return device.CreateCommandBufferBuilder()
.BeginComputePass()
.SetComputePipeline(updatePipeline)
.TransitionBufferUsage(bufferSrc, nxt::BufferUsageBit::Storage)
.TransitionBufferUsage(bufferDst, nxt::BufferUsageBit::Storage)
.SetBindGroup(0, updateBGs[i])
.Dispatch(kNumParticles, 1, 1)
.EndComputePass()
.BeginRenderPass(renderPass)
.SetRenderPipeline(renderPipeline)
.TransitionBufferUsage(bufferDst, nxt::BufferUsageBit::Vertex)
.SetVertexBuffers(0, 1, &bufferDst, zeroOffsets)
.SetVertexBuffers(1, 1, &modelBuffer, zeroOffsets)
.DrawArrays(3, kNumParticles, 0, 0)
@@ -303,7 +298,6 @@ void frame() {
nxt::CommandBuffer commandBuffer = createCommandBuffer(renderPass, pingpong);
queue.Submit(1, &commandBuffer);
backbuffer.TransitionUsage(nxt::TextureUsageBit::Present);
swapchain.Present(backbuffer);
DoFlush();