gl::Error VertexDataManager::storeDynamicAttribs(
std::vector<TranslatedAttribute> *translatedAttribs,
const gl::AttributesMask &dynamicAttribsMask,
GLint start,
GLsizei count,
GLsizei instances)
{
// Reserve the required space for the dynamic buffers.
for (auto attribIndex : angle::IterateBitSet(dynamicAttribsMask))
{
const auto &dynamicAttrib = (*translatedAttribs)[attribIndex];
gl::Error error = reserveSpaceForAttrib(dynamicAttrib, count, instances);
if (error.isError())
{
return error;
}
}
// Store dynamic attributes
for (auto attribIndex : angle::IterateBitSet(dynamicAttribsMask))
{
auto *dynamicAttrib = &(*translatedAttribs)[attribIndex];
gl::Error error = storeDynamicAttrib(dynamicAttrib, start, count, instances);
if (error.isError())
{
unmapStreamingBuffer();
return error;
}
}
unmapStreamingBuffer();
// Promote static usage of dynamic buffers.
for (auto attribIndex : angle::IterateBitSet(dynamicAttribsMask))
{
auto *dynamicAttrib = &(*translatedAttribs)[attribIndex];
gl::Buffer *buffer = dynamicAttrib->attribute->buffer.get();
if (buffer)
{
BufferD3D *bufferD3D = GetImplAs<BufferD3D>(buffer);
size_t typeSize = ComputeVertexAttributeTypeSize(*dynamicAttrib->attribute);
bufferD3D->promoteStaticUsage(count * static_cast<int>(typeSize));
}
}
return gl::Error(GL_NO_ERROR);
}
angle::Result VertexDataManager::storeDynamicAttribs(
const gl::Context *context,
std::vector<TranslatedAttribute> *translatedAttribs,
const gl::AttributesMask &dynamicAttribsMask,
GLint start,
size_t count,
GLsizei instances)
{
// Instantiating this class will ensure the streaming buffer is never left mapped.
class StreamingBufferUnmapper final : NonCopyable
{
public:
StreamingBufferUnmapper(StreamingVertexBufferInterface *streamingBuffer)
: mStreamingBuffer(streamingBuffer)
{
ASSERT(mStreamingBuffer);
}
~StreamingBufferUnmapper() { mStreamingBuffer->getVertexBuffer()->hintUnmapResource(); }
private:
StreamingVertexBufferInterface *mStreamingBuffer;
};
// Will trigger unmapping on return.
StreamingBufferUnmapper localUnmapper(&mStreamingBuffer);
// Reserve the required space for the dynamic buffers.
for (auto attribIndex : dynamicAttribsMask)
{
const auto &dynamicAttrib = (*translatedAttribs)[attribIndex];
ANGLE_TRY(reserveSpaceForAttrib(context, dynamicAttrib, start, count, instances));
}
// Store dynamic attributes
for (auto attribIndex : dynamicAttribsMask)
{
auto *dynamicAttrib = &(*translatedAttribs)[attribIndex];
ANGLE_TRY(storeDynamicAttrib(context, dynamicAttrib, start, count, instances));
}
return angle::Result::Continue();
}
