std::size_t VertexDataManager::writeAttributeData(ArrayVertexBuffer *vertexBuffer, GLint start, GLsizei count, const VertexAttribute &attribute, GLsizei instances)
{
Buffer *buffer = attribute.mBoundBuffer.get();
int inputStride = attribute.stride();
int elementSize = attribute.typeSize();
const FormatConverter &converter = formatConverter(attribute);
std::size_t streamOffset = 0;
void *output = NULL;
if (vertexBuffer)
{
output = vertexBuffer->map(attribute, spaceRequired(attribute, count, instances), &streamOffset);
}
if (output == NULL)
{
ERR("Failed to map vertex buffer.");
return -1;
}
const char *input = NULL;
if (buffer)
{
int offset = attribute.mOffset;
input = static_cast<const char*>(buffer->data()) + offset;
}
else
{
input = static_cast<const char*>(attribute.mPointer);
}
if (instances == 0 || attribute.mDivisor == 0)
{
input += inputStride * start;
}
if (converter.identity && inputStride == elementSize)
{
memcpy(output, input, count * inputStride);
}
else
{
converter.convertArray(input, inputStride, count, output);
}
vertexBuffer->unmap();
return streamOffset;
}
gl::Error VertexBuffer9::storeVertexAttributes(const gl::VertexAttribute &attrib, const gl::VertexAttribCurrentValueData ¤tValue,
GLint start, GLsizei count, GLsizei instances, unsigned int offset)
{
if (!mVertexBuffer)
{
return gl::Error(GL_OUT_OF_MEMORY, "Internal vertex buffer is not initialized.");
}
gl::Buffer *buffer = attrib.buffer.get();
int inputStride = gl::ComputeVertexAttributeStride(attrib);
int elementSize = gl::ComputeVertexAttributeTypeSize(attrib);
DWORD lockFlags = mDynamicUsage ? D3DLOCK_NOOVERWRITE : 0;
uint8_t *mapPtr = NULL;
unsigned int mapSize;
gl::Error error = spaceRequired(attrib, count, instances, &mapSize);
if (error.isError())
{
return error;
}
HRESULT result = mVertexBuffer->Lock(offset, mapSize, reinterpret_cast<void**>(&mapPtr), lockFlags);
if (FAILED(result))
{
return gl::Error(GL_OUT_OF_MEMORY, "Failed to lock internal vertex buffer, HRESULT: 0x%08x.", result);
}
const uint8_t *input = NULL;
if (attrib.enabled)
{
if (buffer)
{
BufferD3D *storage = BufferD3D::makeFromBuffer(buffer);
ASSERT(storage);
gl::Error error = storage->getData(&input);
if (error.isError())
{
return error;
}
input += static_cast<int>(attrib.offset);
}
else
{
input = static_cast<const uint8_t*>(attrib.pointer);
}
}
else
{
input = reinterpret_cast<const uint8_t*>(currentValue.FloatValues);
}
if (instances == 0 || attrib.divisor == 0)
{
input += inputStride * start;
}
gl::VertexFormat vertexFormat(attrib, currentValue.Type);
const d3d9::VertexFormat &d3dVertexInfo = d3d9::GetVertexFormatInfo(mRenderer->getCapsDeclTypes(), vertexFormat);
bool needsConversion = (d3dVertexInfo.conversionType & VERTEX_CONVERT_CPU) > 0;
if (!needsConversion && inputStride == elementSize)
{
size_t copySize = static_cast<size_t>(count) * static_cast<size_t>(inputStride);
memcpy(mapPtr, input, copySize);
}
else
{
d3dVertexInfo.copyFunction(input, inputStride, count, mapPtr);
}
mVertexBuffer->Unlock();
return gl::Error(GL_NO_ERROR);
}
GLenum VertexDataManager::prepareVertexData(GLint start, GLsizei count, TranslatedAttribute *translated, GLsizei instances)
{
if (!mStreamingBuffer)
{
return GL_OUT_OF_MEMORY;
}
const VertexAttributeArray &attribs = mContext->getVertexAttributes();
Program *program = mContext->getCurrentProgram();
ProgramBinary *programBinary = program->getProgramBinary();
for (int attributeIndex = 0; attributeIndex < MAX_VERTEX_ATTRIBS; attributeIndex++)
{
translated[attributeIndex].active = (programBinary->getSemanticIndex(attributeIndex) != -1);
}
// Determine the required storage size per used buffer, and invalidate static buffers that don't contain matching attributes
for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
{
if (translated[i].active && attribs[i].mArrayEnabled)
{
Buffer *buffer = attribs[i].mBoundBuffer.get();
StaticVertexBuffer *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;
if (staticBuffer)
{
if (staticBuffer->size() == 0)
{
int totalCount = elementsInBuffer(attribs[i], buffer->size());
staticBuffer->addRequiredSpace(spaceRequired(attribs[i], totalCount, 0));
}
else if (staticBuffer->lookupAttribute(attribs[i]) == -1)
{
// This static buffer doesn't have matching attributes, so fall back to using the streaming buffer
// Add the space of all previous attributes belonging to the invalidated static buffer to the streaming buffer
for (int previous = 0; previous < i; previous++)
{
if (translated[previous].active && attribs[previous].mArrayEnabled)
{
Buffer *previousBuffer = attribs[previous].mBoundBuffer.get();
StaticVertexBuffer *previousStaticBuffer = previousBuffer ? previousBuffer->getStaticVertexBuffer() : NULL;
if (staticBuffer == previousStaticBuffer)
{
mStreamingBuffer->addRequiredSpace(spaceRequired(attribs[previous], count, instances));
}
}
}
mStreamingBuffer->addRequiredSpace(spaceRequired(attribs[i], count, instances));
buffer->invalidateStaticData();
}
}
else
{
mStreamingBuffer->addRequiredSpace(spaceRequired(attribs[i], count, instances));
}
}
}
// Reserve the required space per used buffer
for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
{
if (translated[i].active && attribs[i].mArrayEnabled)
{
Buffer *buffer = attribs[i].mBoundBuffer.get();
ArrayVertexBuffer *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;
ArrayVertexBuffer *vertexBuffer = staticBuffer ? staticBuffer : mStreamingBuffer;
if (vertexBuffer)
{
vertexBuffer->reserveRequiredSpace();
}
}
}
// Perform the vertex data translations
for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
{
if (translated[i].active)
{
if (attribs[i].mArrayEnabled)
{
Buffer *buffer = attribs[i].mBoundBuffer.get();
if (!buffer && attribs[i].mPointer == NULL)
{
// This is an application error that would normally result in a crash, but we catch it and return an error
ERR("An enabled vertex array has no buffer and no pointer.");
return GL_INVALID_OPERATION;
}
const FormatConverter &converter = formatConverter(attribs[i]);
StaticVertexBuffer *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;
ArrayVertexBuffer *vertexBuffer = staticBuffer ? staticBuffer : static_cast<ArrayVertexBuffer*>(mStreamingBuffer);
std::size_t streamOffset = -1;
if (staticBuffer)
{
streamOffset = staticBuffer->lookupAttribute(attribs[i]);
if (streamOffset == -1)
{
// Convert the entire buffer
int totalCount = elementsInBuffer(attribs[i], buffer->size());
int startIndex = attribs[i].mOffset / attribs[i].stride();
streamOffset = writeAttributeData(staticBuffer, -startIndex, totalCount, attribs[i], 0);
}
if (streamOffset != -1)
{
streamOffset += (attribs[i].mOffset / attribs[i].stride()) * converter.outputElementSize;
if (instances == 0 || attribs[i].mDivisor == 0)
{
streamOffset += start * converter.outputElementSize;
}
}
}
else
{
streamOffset = writeAttributeData(mStreamingBuffer, start, count, attribs[i], instances);
}
if (streamOffset == -1)
{
return GL_OUT_OF_MEMORY;
}
translated[i].vertexBuffer = vertexBuffer->getBuffer();
translated[i].serial = vertexBuffer->getSerial();
translated[i].divisor = attribs[i].mDivisor;
translated[i].type = converter.d3dDeclType;
translated[i].stride = converter.outputElementSize;
translated[i].offset = streamOffset;
}
else
{
if (!mCurrentValueBuffer[i])
{
mCurrentValueBuffer[i] = new StreamingVertexBuffer(mDevice, CONSTANT_VERTEX_BUFFER_SIZE);
}
StreamingVertexBuffer *buffer = mCurrentValueBuffer[i];
if (mDirtyCurrentValue[i])
{
const int requiredSpace = 4 * sizeof(float);
buffer->addRequiredSpace(requiredSpace);
buffer->reserveRequiredSpace();
float *data = static_cast<float*>(buffer->map(VertexAttribute(), requiredSpace, &mCurrentValueOffsets[i]));
if (data)
{
data[0] = attribs[i].mCurrentValue[0];
data[1] = attribs[i].mCurrentValue[1];
data[2] = attribs[i].mCurrentValue[2];
data[3] = attribs[i].mCurrentValue[3];
buffer->unmap();
mDirtyCurrentValue[i] = false;
}
}
translated[i].vertexBuffer = mCurrentValueBuffer[i]->getBuffer();
translated[i].serial = mCurrentValueBuffer[i]->getSerial();
translated[i].divisor = 0;
translated[i].type = D3DDECLTYPE_FLOAT4;
translated[i].stride = 0;
translated[i].offset = mCurrentValueOffsets[i];
}
}
}
for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
{
if (translated[i].active && attribs[i].mArrayEnabled)
{
Buffer *buffer = attribs[i].mBoundBuffer.get();
if (buffer)
{
buffer->promoteStaticUsage(count * attribs[i].typeSize());
}
}
}
return GL_NO_ERROR;
}
gl::Error VertexBuffer9::getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, GLsizei instances,
unsigned int *outSpaceRequired) const
{
return spaceRequired(attrib, count, instances, outSpaceRequired);
}
