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);
}
angle::Result VertexDataManager::prepareVertexData(
    const gl::Context *context,
    GLint start,
    GLsizei count,
    std::vector<TranslatedAttribute> *translatedAttribs,
    GLsizei instances)
{
    const gl::State &state             = context->getGLState();
    const gl::VertexArray *vertexArray = state.getVertexArray();
    const auto &vertexAttributes       = vertexArray->getVertexAttributes();
    const auto &vertexBindings         = vertexArray->getVertexBindings();

    mDynamicAttribsMaskCache.reset();
    const gl::Program *program = state.getProgram();

    translatedAttribs->clear();

    for (size_t attribIndex = 0; attribIndex < vertexAttributes.size(); ++attribIndex)
    {
        // Skip attrib locations the program doesn't use.
        if (!program->isAttribLocationActive(attribIndex))
            continue;

        const auto &attrib = vertexAttributes[attribIndex];
        const auto &binding = vertexBindings[attrib.bindingIndex];

        // Resize automatically puts in empty attribs
        translatedAttribs->resize(attribIndex + 1);

        TranslatedAttribute *translated = &(*translatedAttribs)[attribIndex];
        auto currentValueData           = state.getVertexAttribCurrentValue(attribIndex);

        // Record the attribute now
        translated->active           = true;
        translated->attribute        = &attrib;
        translated->binding          = &binding;
        translated->currentValueType = currentValueData.Type;
        translated->divisor          = binding.getDivisor();

        switch (ClassifyAttributeStorage(context, attrib, binding))
        {
            case VertexStorageType::STATIC:
            {
                // Store static attribute.
                ANGLE_TRY(StoreStaticAttrib(context, translated));
                break;
            }
            case VertexStorageType::DYNAMIC:
                // Dynamic attributes must be handled together.
                mDynamicAttribsMaskCache.set(attribIndex);
                break;
            case VertexStorageType::DIRECT:
                // Update translated data for direct attributes.
                StoreDirectAttrib(context, translated);
                break;
            case VertexStorageType::CURRENT_VALUE:
            {
                ANGLE_TRY(storeCurrentValue(context, currentValueData, translated, attribIndex));
                break;
            }
            default:
                UNREACHABLE();
                break;
        }
    }

    if (mDynamicAttribsMaskCache.none())
    {
        return angle::Result::Continue();
    }

    ANGLE_TRY(storeDynamicAttribs(context, translatedAttribs, mDynamicAttribsMaskCache, start,
                                  count, instances));

    PromoteDynamicAttribs(context, *translatedAttribs, mDynamicAttribsMaskCache, count);

    return angle::Result::Continue();
}
gl::Error VertexDataManager::prepareVertexData(const gl::State &state,
                                               GLint start,
                                               GLsizei count,
                                               std::vector<TranslatedAttribute> *translatedAttribs,
                                               GLsizei instances)
{
    ASSERT(mStreamingBuffer);

    const gl::VertexArray *vertexArray = state.getVertexArray();
    const auto &vertexAttributes       = vertexArray->getVertexAttributes();

    mDynamicAttribsMaskCache.reset();
    const gl::Program *program = state.getProgram();

    translatedAttribs->clear();

    for (size_t attribIndex = 0; attribIndex < vertexAttributes.size(); ++attribIndex)
    {
        // Skip attrib locations the program doesn't use.
        if (!program->isAttribLocationActive(attribIndex))
            continue;

        const auto &attrib = vertexAttributes[attribIndex];

        // Resize automatically puts in empty attribs
        translatedAttribs->resize(attribIndex + 1);

        TranslatedAttribute *translated = &(*translatedAttribs)[attribIndex];
        auto currentValueData =
            state.getVertexAttribCurrentValue(static_cast<unsigned int>(attribIndex));

        // Record the attribute now
        translated->active           = true;
        translated->attribute        = &attrib;
        translated->currentValueType = currentValueData.Type;
        translated->divisor          = attrib.divisor;

        switch (ClassifyAttributeStorage(attrib))
        {
            case VertexStorageType::STATIC:
            {
                // Store static attribute.
                gl::Error error = StoreStaticAttrib(translated, start, count, instances);
                if (error.isError())
                {
                    return error;
                }
                break;
            }
            case VertexStorageType::DYNAMIC:
                // Dynamic attributes must be handled together.
                mDynamicAttribsMaskCache.set(attribIndex);
                break;
            case VertexStorageType::DIRECT:
                // Update translated data for direct attributes.
                StoreDirectAttrib(translated, start);
                break;
            case VertexStorageType::CURRENT_VALUE:
            {
                gl::Error error = storeCurrentValue(currentValueData, translated, attribIndex);
                if (error.isError())
                {
                    return error;
                }
                break;
            }
            default:
                UNREACHABLE();
                break;
        }
    }

    if (mDynamicAttribsMaskCache.none())
    {
        gl::Error(GL_NO_ERROR);
    }

    return storeDynamicAttribs(translatedAttribs, mDynamicAttribsMaskCache, start, count,
                               instances);
}
Beispiel #4
0
gl::Error VertexDataManager::prepareVertexData(const gl::State &state, GLint start, GLsizei count,
                                               TranslatedAttribute *translated, GLsizei instances)
{
    if (!mStreamingBuffer)
    {
        return gl::Error(GL_OUT_OF_MEMORY, "Internal streaming vertex buffer is unexpectedly NULL.");
    }

    // Invalidate static buffers that don't contain matching attributes
    for (int attributeIndex = 0; attributeIndex < gl::MAX_VERTEX_ATTRIBS; attributeIndex++)
    {
        translated[attributeIndex].active = (state.getProgram()->getSemanticIndex(attributeIndex) != -1);
        const gl::VertexAttribute &curAttrib = state.getVertexAttribState(attributeIndex);

        if (translated[attributeIndex].active && curAttrib.enabled)
        {
            invalidateMatchingStaticData(curAttrib, state.getVertexAttribCurrentValue(attributeIndex));
        }
    }

    // Reserve the required space in the buffers
    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        const gl::VertexAttribute &curAttrib = state.getVertexAttribState(i);
        if (translated[i].active && curAttrib.enabled)
        {
            gl::Error error = reserveSpaceForAttrib(curAttrib, state.getVertexAttribCurrentValue(i), count, instances);
            if (error.isError())
            {
                return error;
            }
        }
    }

    // Perform the vertex data translations
    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        const gl::VertexAttribute &curAttrib = state.getVertexAttribState(i);
        if (translated[i].active)
        {
            if (curAttrib.enabled)
            {
                gl::Error error = storeAttribute(curAttrib, state.getVertexAttribCurrentValue(i),
                                                 &translated[i], start, count, instances);

                if (error.isError())
                {
                    return error;
                }
            }
            else
            {
                if (!mCurrentValueBuffer[i])
                {
                    mCurrentValueBuffer[i] = new StreamingVertexBufferInterface(mRenderer, CONSTANT_VERTEX_BUFFER_SIZE);
                }

                gl::Error error = storeCurrentValue(curAttrib, state.getVertexAttribCurrentValue(i), &translated[i],
                                                    &mCurrentValue[i], &mCurrentValueOffsets[i],
                                                    mCurrentValueBuffer[i]);
                if (error.isError())
                {
                    return error;
                }
            }
        }
    }

    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        const gl::VertexAttribute &curAttrib = state.getVertexAttribState(i);
        if (translated[i].active && curAttrib.enabled)
        {
            gl::Buffer *buffer = curAttrib.buffer.get();

            if (buffer)
            {
                BufferD3D *bufferImpl = BufferD3D::makeBufferD3D(buffer->getImplementation());
                bufferImpl->promoteStaticUsage(count * ComputeVertexAttributeTypeSize(curAttrib));
            }
        }
    }

    return gl::Error(GL_NO_ERROR);
}