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Remove explicit usage transition from the API and validation

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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
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15
examples/CubeReflection.cpp
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@@ -61,7 +61,7 @@ void initBuffers() {
20, 21, 22,
20, 22, 23
};
indexBuffer = utils::CreateFrozenBufferFromData(device, indexData, sizeof(indexData), nxt::BufferUsageBit::Index);
indexBuffer = utils::CreateBufferFromData(device, indexData, sizeof(indexData), nxt::BufferUsageBit::Index);
static const float vertexData[6 * 4 * 6] = {
-1.0, -1.0, 1.0, 1.0, 0.0, 0.0,
@@ -94,7 +94,7 @@ void initBuffers() {
-1.0, 1.0, 1.0, 1.0, 1.0, 1.0,
-1.0, 1.0, -1.0, 1.0, 1.0, 1.0
};
vertexBuffer = utils::CreateFrozenBufferFromData(device, vertexData, sizeof(vertexData), nxt::BufferUsageBit::Vertex);
vertexBuffer = utils::CreateBufferFromData(device, vertexData, sizeof(vertexData), nxt::BufferUsageBit::Vertex);
static const float planeData[6 * 4] = {
-2.0, -1.0, -2.0, 0.5, 0.5, 0.5,
@@ -102,7 +102,7 @@ void initBuffers() {
2.0, -1.0, 2.0, 0.5, 0.5, 0.5,
-2.0, -1.0, 2.0, 0.5, 0.5, 0.5,
};
planeBuffer = utils::CreateFrozenBufferFromData(device, planeData, sizeof(planeData), nxt::BufferUsageBit::Vertex);
planeBuffer = utils::CreateBufferFromData(device, planeData, sizeof(planeData), nxt::BufferUsageBit::Vertex);
}
struct CameraData {
@@ -171,15 +171,14 @@ void init() {
cameraBuffer = device.CreateBufferBuilder()
.SetAllowedUsage(nxt::BufferUsageBit::TransferDst | nxt::BufferUsageBit::Uniform)
.SetInitialUsage(nxt::BufferUsageBit::TransferDst)
.SetSize(sizeof(CameraData))
.GetResult();
glm::mat4 transform(1.0);
transformBuffer[0] = utils::CreateFrozenBufferFromData(device, &transform, sizeof(glm::mat4), nxt::BufferUsageBit::Uniform);
transformBuffer[0] = utils::CreateBufferFromData(device, &transform, sizeof(glm::mat4), nxt::BufferUsageBit::Uniform);
transform = glm::translate(transform, glm::vec3(0.f, -2.f, 0.f));
transformBuffer[1] = utils::CreateFrozenBufferFromData(device, &transform, sizeof(glm::mat4), nxt::BufferUsageBit::Uniform);
transformBuffer[1] = utils::CreateBufferFromData(device, &transform, sizeof(glm::mat4), nxt::BufferUsageBit::Uniform);
nxt::BufferView cameraBufferView = cameraBuffer.CreateBufferViewBuilder()
.SetExtent(0, sizeof(CameraData))
@@ -274,7 +273,6 @@ void frame() {
glm::vec3(0.0f, -1.0f, 0.0f)
);
cameraBuffer.TransitionUsage(nxt::BufferUsageBit::TransferDst);
cameraBuffer.SetSubData(0, sizeof(CameraData), reinterpret_cast<uint8_t*>(&cameraData));
nxt::Texture backbuffer;
@@ -282,8 +280,6 @@ void frame() {
GetNextRenderPassDescriptor(device, swapchain, depthStencilView, &backbuffer, &renderPass);
nxt::CommandBuffer commands = device.CreateCommandBufferBuilder()
.TransitionBufferUsage(cameraBuffer, nxt::BufferUsageBit::Uniform)
.BeginRenderPass(renderPass)
.SetRenderPipeline(pipeline)
.SetBindGroup(0, bindGroup[0])
@@ -305,7 +301,6 @@ void frame() {
.GetResult();
queue.Submit(1, &commands);
backbuffer.TransitionUsage(nxt::TextureUsageBit::Present);
swapchain.Present(backbuffer);
DoFlush();
}