void VertexDataManager::hintUnmapAllResources(const std::vector<gl::VertexAttribute> &vertexAttributes)
{
mStreamingBuffer->getVertexBuffer()->hintUnmapResource();
for (const TranslatedAttribute *translated : mActiveEnabledAttributes)
{
gl::Buffer *buffer = translated->attribute->buffer.get();
BufferD3D *storage = buffer ? GetImplAs<BufferD3D>(buffer) : nullptr;
StaticVertexBufferInterface *staticBuffer =
storage ? storage->getStaticVertexBuffer(*translated->attribute) : nullptr;
if (staticBuffer)
{
staticBuffer->getVertexBuffer()->hintUnmapResource();
}
}
for (auto ¤tValue : mCurrentValueCache)
{
if (currentValue.buffer != nullptr)
{
currentValue.buffer->getVertexBuffer()->hintUnmapResource();
}
}
}
gl::Error VertexDataManager::reserveSpaceForAttrib(const TranslatedAttribute &translatedAttrib,
GLsizei count,
GLsizei instances) const
{
const gl::VertexAttribute &attrib = *translatedAttrib.attribute;
gl::Buffer *buffer = attrib.buffer.get();
BufferD3D *bufferImpl = buffer ? GetImplAs<BufferD3D>(buffer) : NULL;
StaticVertexBufferInterface *staticBuffer =
bufferImpl ? bufferImpl->getStaticVertexBuffer(attrib) : NULL;
VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);
if (!vertexBuffer->directStoragePossible(attrib, translatedAttrib.currentValueType))
{
if (staticBuffer)
{
if (staticBuffer->getBufferSize() == 0)
{
int totalCount =
ElementsInBuffer(attrib, static_cast<unsigned int>(bufferImpl->getSize()));
gl::Error error = staticBuffer->reserveVertexSpace(attrib, totalCount, 0);
if (error.isError())
{
return error;
}
}
}
else
{
size_t totalCount = ComputeVertexAttributeElementCount(attrib, count, instances);
ASSERT(!bufferImpl ||
ElementsInBuffer(attrib, static_cast<unsigned int>(bufferImpl->getSize())) >=
static_cast<int>(totalCount));
gl::Error error = mStreamingBuffer->reserveVertexSpace(
attrib, static_cast<GLsizei>(totalCount), instances);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
void VertexDataManager::invalidateMatchingStaticData(const gl::VertexAttribute &attrib,
const gl::VertexAttribCurrentValueData ¤tValue) const
{
gl::Buffer *buffer = attrib.buffer.get();
if (buffer)
{
BufferD3D *bufferImpl = BufferD3D::makeBufferD3D(buffer->getImplementation());
StaticVertexBufferInterface *staticBuffer = bufferImpl->getStaticVertexBuffer();
if (staticBuffer &&
staticBuffer->getBufferSize() > 0 &&
!staticBuffer->lookupAttribute(attrib, NULL) &&
!staticBuffer->directStoragePossible(attrib, currentValue))
{
bufferImpl->invalidateStaticData();
}
}
}
gl::Error VertexDataManager::reserveSpaceForAttrib(const gl::VertexAttribute &attrib,
const gl::VertexAttribCurrentValueData ¤tValue,
GLsizei count,
GLsizei instances) const
{
gl::Buffer *buffer = attrib.buffer.get();
BufferD3D *bufferImpl = buffer ? BufferD3D::makeBufferD3D(buffer->getImplementation()) : NULL;
StaticVertexBufferInterface *staticBuffer = bufferImpl ? bufferImpl->getStaticVertexBuffer() : NULL;
VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);
if (!vertexBuffer->directStoragePossible(attrib, currentValue))
{
if (staticBuffer)
{
if (staticBuffer->getBufferSize() == 0)
{
int totalCount = ElementsInBuffer(attrib, bufferImpl->getSize());
gl::Error error = staticBuffer->reserveVertexSpace(attrib, totalCount, 0);
if (error.isError())
{
return error;
}
}
}
else
{
int totalCount = StreamingBufferElementCount(attrib, count, instances);
ASSERT(!bufferImpl || ElementsInBuffer(attrib, bufferImpl->getSize()) >= totalCount);
gl::Error error = mStreamingBuffer->reserveVertexSpace(attrib, totalCount, instances);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error VertexDataManager::storeAttribute(TranslatedAttribute *translated,
GLint start,
GLsizei count,
GLsizei instances)
{
const gl::VertexAttribute &attrib = *translated->attribute;
gl::Buffer *buffer = attrib.buffer.get();
ASSERT(buffer || attrib.pointer);
ASSERT(attrib.enabled);
BufferD3D *storage = buffer ? GetImplAs<BufferD3D>(buffer) : NULL;
StaticVertexBufferInterface *staticBuffer =
storage ? storage->getStaticVertexBuffer(attrib) : NULL;
VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);
bool directStorage = vertexBuffer->directStoragePossible(attrib, translated->currentValueType);
// Instanced vertices do not apply the 'start' offset
GLint firstVertexIndex = (instances > 0 && attrib.divisor > 0 ? 0 : start);
translated->vertexBuffer = vertexBuffer->getVertexBuffer();
if (directStorage)
{
translated->storage = storage;
translated->serial = storage->getSerial();
translated->stride = static_cast<unsigned int>(ComputeVertexAttributeStride(attrib));
translated->offset = static_cast<unsigned int>(attrib.offset + translated->stride * firstVertexIndex);
return gl::Error(GL_NO_ERROR);
}
// Compute source data pointer
const uint8_t *sourceData = nullptr;
if (buffer)
{
gl::Error error = storage->getData(&sourceData);
if (error.isError())
{
return error;
}
sourceData += static_cast<int>(attrib.offset);
}
else
{
sourceData = static_cast<const uint8_t*>(attrib.pointer);
}
unsigned int streamOffset = 0;
unsigned int outputElementSize = 0;
if (staticBuffer)
{
gl::Error error = staticBuffer->getVertexBuffer()->getSpaceRequired(attrib, 1, 0, &outputElementSize);
if (error.isError())
{
return error;
}
if (!staticBuffer->lookupAttribute(attrib, &streamOffset))
{
// Convert the entire buffer
int totalCount =
ElementsInBuffer(attrib, static_cast<unsigned int>(storage->getSize()));
int startIndex = static_cast<int>(attrib.offset) /
static_cast<int>(ComputeVertexAttributeStride(attrib));
error = staticBuffer->storeVertexAttributes(attrib,
translated->currentValueType,
-startIndex,
totalCount,
0,
&streamOffset,
sourceData);
if (error.isError())
{
return error;
}
}
unsigned int firstElementOffset =
(static_cast<unsigned int>(attrib.offset) /
static_cast<unsigned int>(ComputeVertexAttributeStride(attrib))) *
outputElementSize;
unsigned int startOffset = (instances == 0 || attrib.divisor == 0) ? firstVertexIndex * outputElementSize : 0;
if (streamOffset + firstElementOffset + startOffset < streamOffset)
{
return gl::Error(GL_OUT_OF_MEMORY);
}
streamOffset += firstElementOffset + startOffset;
}
else
{
size_t totalCount = ComputeVertexAttributeElementCount(attrib, count, instances);
gl::Error error = mStreamingBuffer->getVertexBuffer()->getSpaceRequired(attrib, 1, 0, &outputElementSize);
if (error.isError())
{
return error;
}
error = mStreamingBuffer->storeVertexAttributes(
attrib, translated->currentValueType, firstVertexIndex,
static_cast<GLsizei>(totalCount), instances, &streamOffset, sourceData);
if (error.isError())
{
return error;
}
}
translated->storage = nullptr;
translated->serial = vertexBuffer->getSerial();
translated->stride = outputElementSize;
translated->offset = streamOffset;
return gl::Error(GL_NO_ERROR);
}
gl::Error VertexDataManager::prepareVertexData(const gl::State &state,
GLint start,
GLsizei count,
std::vector<TranslatedAttribute> *translatedAttribs,
GLsizei instances)
{
if (!mStreamingBuffer)
{
return gl::Error(GL_OUT_OF_MEMORY, "Internal streaming vertex buffer is unexpectedly NULL.");
}
// Compute active enabled and active disable attributes, for speed.
// TODO(jmadill): don't recompute if there was no state change
const gl::VertexArray *vertexArray = state.getVertexArray();
const gl::Program *program = state.getProgram();
const auto &vertexAttributes = vertexArray->getVertexAttributes();
mActiveEnabledAttributes.clear();
mActiveDisabledAttributes.clear();
translatedAttribs->clear();
for (size_t attribIndex = 0; attribIndex < vertexAttributes.size(); ++attribIndex)
{
if (program->isAttribLocationActive(attribIndex))
{
// Resize automatically puts in empty attribs
translatedAttribs->resize(attribIndex + 1);
TranslatedAttribute *translated = &(*translatedAttribs)[attribIndex];
// Record the attribute now
translated->active = true;
translated->attribute = &vertexAttributes[attribIndex];
translated->currentValueType =
state.getVertexAttribCurrentValue(static_cast<unsigned int>(attribIndex)).Type;
translated->divisor = vertexAttributes[attribIndex].divisor;
if (vertexAttributes[attribIndex].enabled)
{
mActiveEnabledAttributes.push_back(translated);
}
else
{
mActiveDisabledAttributes.push_back(attribIndex);
}
}
}
// Reserve the required space in the buffers
for (const TranslatedAttribute *activeAttrib : mActiveEnabledAttributes)
{
gl::Error error = reserveSpaceForAttrib(*activeAttrib, count, instances);
if (error.isError())
{
return error;
}
}
// Perform the vertex data translations
for (TranslatedAttribute *activeAttrib : mActiveEnabledAttributes)
{
gl::Error error = storeAttribute(activeAttrib, start, count, instances);
if (error.isError())
{
hintUnmapAllResources(vertexAttributes);
return error;
}
}
for (size_t attribIndex : mActiveDisabledAttributes)
{
if (mCurrentValueCache[attribIndex].buffer == nullptr)
{
mCurrentValueCache[attribIndex].buffer = new StreamingVertexBufferInterface(mFactory, CONSTANT_VERTEX_BUFFER_SIZE);
}
gl::Error error = storeCurrentValue(
state.getVertexAttribCurrentValue(static_cast<unsigned int>(attribIndex)),
&(*translatedAttribs)[attribIndex], &mCurrentValueCache[attribIndex]);
if (error.isError())
{
hintUnmapAllResources(vertexAttributes);
return error;
}
}
// Commit all the static vertex buffers. This fixes them in size/contents, and forces ANGLE
// to use a new static buffer (or recreate the static buffers) next time
for (size_t attribIndex = 0; attribIndex < vertexAttributes.size(); ++attribIndex)
{
const gl::VertexAttribute &attrib = vertexAttributes[attribIndex];
gl::Buffer *buffer = attrib.buffer.get();
BufferD3D *storage = buffer ? GetImplAs<BufferD3D>(buffer) : nullptr;
StaticVertexBufferInterface *staticBuffer =
storage ? storage->getStaticVertexBuffer(attrib) : nullptr;
if (staticBuffer)
{
staticBuffer->commit();
}
}
// Hint to unmap all the resources
hintUnmapAllResources(vertexAttributes);
for (const TranslatedAttribute *activeAttrib : mActiveEnabledAttributes)
{
gl::Buffer *buffer = activeAttrib->attribute->buffer.get();
if (buffer)
{
BufferD3D *bufferD3D = GetImplAs<BufferD3D>(buffer);
size_t typeSize = ComputeVertexAttributeTypeSize(*activeAttrib->attribute);
bufferD3D->promoteStaticUsage(count * static_cast<int>(typeSize));
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error VertexDataManager::storeAttribute(const gl::VertexAttribute &attrib,
const gl::VertexAttribCurrentValueData ¤tValue,
TranslatedAttribute *translated,
GLint start,
GLsizei count,
GLsizei instances)
{
gl::Buffer *buffer = attrib.buffer.get();
ASSERT(buffer || attrib.pointer);
BufferD3D *storage = buffer ? BufferD3D::makeBufferD3D(buffer->getImplementation()) : NULL;
StaticVertexBufferInterface *staticBuffer = storage ? storage->getStaticVertexBuffer() : NULL;
VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);
bool directStorage = vertexBuffer->directStoragePossible(attrib, currentValue);
unsigned int streamOffset = 0;
unsigned int outputElementSize = 0;
if (directStorage)
{
outputElementSize = ComputeVertexAttributeStride(attrib);
streamOffset = attrib.offset + outputElementSize * start;
}
else if (staticBuffer)
{
gl::Error error = staticBuffer->getVertexBuffer()->getSpaceRequired(attrib, 1, 0, &outputElementSize);
if (error.isError())
{
return error;
}
if (!staticBuffer->lookupAttribute(attrib, &streamOffset))
{
// Convert the entire buffer
int totalCount = ElementsInBuffer(attrib, storage->getSize());
int startIndex = attrib.offset / ComputeVertexAttributeStride(attrib);
gl::Error error = staticBuffer->storeVertexAttributes(attrib, currentValue, -startIndex, totalCount,
0, &streamOffset);
if (error.isError())
{
return error;
}
}
unsigned int firstElementOffset = (attrib.offset / ComputeVertexAttributeStride(attrib)) * outputElementSize;
unsigned int startOffset = (instances == 0 || attrib.divisor == 0) ? start * outputElementSize : 0;
if (streamOffset + firstElementOffset + startOffset < streamOffset)
{
return gl::Error(GL_OUT_OF_MEMORY);
}
streamOffset += firstElementOffset + startOffset;
}
else
{
int totalCount = StreamingBufferElementCount(attrib, count, instances);
gl::Error error = mStreamingBuffer->getVertexBuffer()->getSpaceRequired(attrib, 1, 0, &outputElementSize);
if (error.isError())
{
return error;
}
error = mStreamingBuffer->storeVertexAttributes(attrib, currentValue, start, totalCount, instances, &streamOffset);
if (error.isError())
{
return error;
}
}
translated->storage = directStorage ? storage : NULL;
translated->vertexBuffer = vertexBuffer->getVertexBuffer();
translated->serial = directStorage ? storage->getSerial() : vertexBuffer->getSerial();
translated->divisor = attrib.divisor;
translated->attribute = &attrib;
translated->currentValueType = currentValue.Type;
translated->stride = outputElementSize;
translated->offset = streamOffset;
return gl::Error(GL_NO_ERROR);
}