1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/angle/src/libGLESv2/renderer/VertexBuffer11.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,440 @@
1.4 +#include "precompiled.h"
1.5 +//
1.6 +// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
1.7 +// Use of this source code is governed by a BSD-style license that can be
1.8 +// found in the LICENSE file.
1.9 +//
1.10 +
1.11 +// VertexBuffer11.cpp: Defines the D3D11 VertexBuffer implementation.
1.12 +
1.13 +#include "libGLESv2/renderer/VertexBuffer11.h"
1.14 +#include "libGLESv2/renderer/BufferStorage.h"
1.15 +
1.16 +#include "libGLESv2/Buffer.h"
1.17 +#include "libGLESv2/renderer/Renderer11.h"
1.18 +#include "libGLESv2/Context.h"
1.19 +
1.20 +namespace rx
1.21 +{
1.22 +
1.23 +VertexBuffer11::VertexBuffer11(rx::Renderer11 *const renderer) : mRenderer(renderer)
1.24 +{
1.25 + mBuffer = NULL;
1.26 + mBufferSize = 0;
1.27 + mDynamicUsage = false;
1.28 +}
1.29 +
1.30 +VertexBuffer11::~VertexBuffer11()
1.31 +{
1.32 + if (mBuffer)
1.33 + {
1.34 + mBuffer->Release();
1.35 + mBuffer = NULL;
1.36 + }
1.37 +}
1.38 +
1.39 +bool VertexBuffer11::initialize(unsigned int size, bool dynamicUsage)
1.40 +{
1.41 + if (mBuffer)
1.42 + {
1.43 + mBuffer->Release();
1.44 + mBuffer = NULL;
1.45 + }
1.46 +
1.47 + updateSerial();
1.48 +
1.49 + if (size > 0)
1.50 + {
1.51 + ID3D11Device* dxDevice = mRenderer->getDevice();
1.52 +
1.53 + D3D11_BUFFER_DESC bufferDesc;
1.54 + bufferDesc.ByteWidth = size;
1.55 + bufferDesc.Usage = D3D11_USAGE_DYNAMIC;
1.56 + bufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
1.57 + bufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
1.58 + bufferDesc.MiscFlags = 0;
1.59 + bufferDesc.StructureByteStride = 0;
1.60 +
1.61 + HRESULT result = dxDevice->CreateBuffer(&bufferDesc, NULL, &mBuffer);
1.62 + if (FAILED(result))
1.63 + {
1.64 + return false;
1.65 + }
1.66 + }
1.67 +
1.68 + mBufferSize = size;
1.69 + mDynamicUsage = dynamicUsage;
1.70 + return true;
1.71 +}
1.72 +
1.73 +VertexBuffer11 *VertexBuffer11::makeVertexBuffer11(VertexBuffer *vetexBuffer)
1.74 +{
1.75 + ASSERT(HAS_DYNAMIC_TYPE(VertexBuffer11*, vetexBuffer));
1.76 + return static_cast<VertexBuffer11*>(vetexBuffer);
1.77 +}
1.78 +
1.79 +bool VertexBuffer11::storeVertexAttributes(const gl::VertexAttribute &attrib, GLint start, GLsizei count,
1.80 + GLsizei instances, unsigned int offset)
1.81 +{
1.82 + if (mBuffer)
1.83 + {
1.84 + gl::Buffer *buffer = attrib.mBoundBuffer.get();
1.85 +
1.86 + int inputStride = attrib.stride();
1.87 + const VertexConverter &converter = getVertexConversion(attrib);
1.88 +
1.89 + ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
1.90 +
1.91 + D3D11_MAPPED_SUBRESOURCE mappedResource;
1.92 + HRESULT result = dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_NO_OVERWRITE, 0, &mappedResource);
1.93 + if (FAILED(result))
1.94 + {
1.95 + ERR("Vertex buffer map failed with error 0x%08x", result);
1.96 + return false;
1.97 + }
1.98 +
1.99 + char* output = reinterpret_cast<char*>(mappedResource.pData) + offset;
1.100 +
1.101 + const char *input = NULL;
1.102 + if (buffer)
1.103 + {
1.104 + BufferStorage *storage = buffer->getStorage();
1.105 + input = static_cast<const char*>(storage->getData()) + static_cast<int>(attrib.mOffset);
1.106 + }
1.107 + else
1.108 + {
1.109 + input = static_cast<const char*>(attrib.mPointer);
1.110 + }
1.111 +
1.112 + if (instances == 0 || attrib.mDivisor == 0)
1.113 + {
1.114 + input += inputStride * start;
1.115 + }
1.116 +
1.117 + converter.conversionFunc(input, inputStride, count, output);
1.118 +
1.119 + dxContext->Unmap(mBuffer, 0);
1.120 +
1.121 + return true;
1.122 + }
1.123 + else
1.124 + {
1.125 + ERR("Vertex buffer not initialized.");
1.126 + return false;
1.127 + }
1.128 +}
1.129 +
1.130 +bool VertexBuffer11::storeRawData(const void* data, unsigned int size, unsigned int offset)
1.131 +{
1.132 + if (mBuffer)
1.133 + {
1.134 + ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
1.135 +
1.136 + D3D11_MAPPED_SUBRESOURCE mappedResource;
1.137 + HRESULT result = dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_NO_OVERWRITE, 0, &mappedResource);
1.138 + if (FAILED(result))
1.139 + {
1.140 + ERR("Vertex buffer map failed with error 0x%08x", result);
1.141 + return false;
1.142 + }
1.143 +
1.144 + char* bufferData = static_cast<char*>(mappedResource.pData);
1.145 + memcpy(bufferData + offset, data, size);
1.146 +
1.147 + dxContext->Unmap(mBuffer, 0);
1.148 +
1.149 + return true;
1.150 + }
1.151 + else
1.152 + {
1.153 + ERR("Vertex buffer not initialized.");
1.154 + return false;
1.155 + }
1.156 +}
1.157 +
1.158 +bool VertexBuffer11::getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count,
1.159 + GLsizei instances, unsigned int *outSpaceRequired) const
1.160 +{
1.161 + unsigned int elementSize = getVertexConversion(attrib).outputElementSize;
1.162 +
1.163 + unsigned int elementCount = 0;
1.164 + if (instances == 0 || attrib.mDivisor == 0)
1.165 + {
1.166 + elementCount = count;
1.167 + }
1.168 + else
1.169 + {
1.170 + if (static_cast<unsigned int>(instances) < std::numeric_limits<unsigned int>::max() - (attrib.mDivisor - 1))
1.171 + {
1.172 + // Round up
1.173 + elementCount = (static_cast<unsigned int>(instances) + (attrib.mDivisor - 1)) / attrib.mDivisor;
1.174 + }
1.175 + else
1.176 + {
1.177 + elementCount = instances / attrib.mDivisor;
1.178 + }
1.179 + }
1.180 +
1.181 + if (elementSize <= std::numeric_limits<unsigned int>::max() / elementCount)
1.182 + {
1.183 + if (outSpaceRequired)
1.184 + {
1.185 + *outSpaceRequired = elementSize * elementCount;
1.186 + }
1.187 + return true;
1.188 + }
1.189 + else
1.190 + {
1.191 + return false;
1.192 + }
1.193 +}
1.194 +
1.195 +bool VertexBuffer11::requiresConversion(const gl::VertexAttribute &attrib) const
1.196 +{
1.197 + return !getVertexConversion(attrib).identity;
1.198 +}
1.199 +
1.200 +unsigned int VertexBuffer11::getBufferSize() const
1.201 +{
1.202 + return mBufferSize;
1.203 +}
1.204 +
1.205 +bool VertexBuffer11::setBufferSize(unsigned int size)
1.206 +{
1.207 + if (size > mBufferSize)
1.208 + {
1.209 + return initialize(size, mDynamicUsage);
1.210 + }
1.211 + else
1.212 + {
1.213 + return true;
1.214 + }
1.215 +}
1.216 +
1.217 +bool VertexBuffer11::discard()
1.218 +{
1.219 + if (mBuffer)
1.220 + {
1.221 + ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
1.222 +
1.223 + D3D11_MAPPED_SUBRESOURCE mappedResource;
1.224 + HRESULT result = dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
1.225 + if (FAILED(result))
1.226 + {
1.227 + ERR("Vertex buffer map failed with error 0x%08x", result);
1.228 + return false;
1.229 + }
1.230 +
1.231 + dxContext->Unmap(mBuffer, 0);
1.232 +
1.233 + return true;
1.234 + }
1.235 + else
1.236 + {
1.237 + ERR("Vertex buffer not initialized.");
1.238 + return false;
1.239 + }
1.240 +}
1.241 +
1.242 +unsigned int VertexBuffer11::getVertexSize(const gl::VertexAttribute &attrib) const
1.243 +{
1.244 + return getVertexConversion(attrib).outputElementSize;
1.245 +}
1.246 +
1.247 +DXGI_FORMAT VertexBuffer11::getDXGIFormat(const gl::VertexAttribute &attrib) const
1.248 +{
1.249 + return getVertexConversion(attrib).dxgiFormat;
1.250 +}
1.251 +
1.252 +ID3D11Buffer *VertexBuffer11::getBuffer() const
1.253 +{
1.254 + return mBuffer;
1.255 +}
1.256 +
1.257 +template <typename T, unsigned int componentCount, bool widen, bool normalized>
1.258 +static void copyVertexData(const void *input, unsigned int stride, unsigned int count, void *output)
1.259 +{
1.260 + unsigned int attribSize = sizeof(T) * componentCount;
1.261 +
1.262 + if (attribSize == stride && !widen)
1.263 + {
1.264 + memcpy(output, input, count * attribSize);
1.265 + }
1.266 + else
1.267 + {
1.268 + unsigned int outputStride = widen ? 4 : componentCount;
1.269 + T defaultVal = normalized ? std::numeric_limits<T>::max() : T(1);
1.270 +
1.271 + for (unsigned int i = 0; i < count; i++)
1.272 + {
1.273 + const T *offsetInput = reinterpret_cast<const T*>(reinterpret_cast<const char*>(input) + i * stride);
1.274 + T *offsetOutput = reinterpret_cast<T*>(output) + i * outputStride;
1.275 +
1.276 + for (unsigned int j = 0; j < componentCount; j++)
1.277 + {
1.278 + offsetOutput[j] = offsetInput[j];
1.279 + }
1.280 +
1.281 + if (widen)
1.282 + {
1.283 + offsetOutput[3] = defaultVal;
1.284 + }
1.285 + }
1.286 + }
1.287 +}
1.288 +
1.289 +template <unsigned int componentCount>
1.290 +static void copyFixedVertexData(const void* input, unsigned int stride, unsigned int count, void* output)
1.291 +{
1.292 + static const float divisor = 1.0f / (1 << 16);
1.293 +
1.294 + for (unsigned int i = 0; i < count; i++)
1.295 + {
1.296 + const GLfixed* offsetInput = reinterpret_cast<const GLfixed*>(reinterpret_cast<const char*>(input) + stride * i);
1.297 + float* offsetOutput = reinterpret_cast<float*>(output) + i * componentCount;
1.298 +
1.299 + for (unsigned int j = 0; j < componentCount; j++)
1.300 + {
1.301 + offsetOutput[j] = static_cast<float>(offsetInput[j]) * divisor;
1.302 + }
1.303 + }
1.304 +}
1.305 +
1.306 +template <typename T, unsigned int componentCount, bool normalized>
1.307 +static void copyToFloatVertexData(const void* input, unsigned int stride, unsigned int count, void* output)
1.308 +{
1.309 + typedef std::numeric_limits<T> NL;
1.310 +
1.311 + for (unsigned int i = 0; i < count; i++)
1.312 + {
1.313 + const T *offsetInput = reinterpret_cast<const T*>(reinterpret_cast<const char*>(input) + stride * i);
1.314 + float *offsetOutput = reinterpret_cast<float*>(output) + i * componentCount;
1.315 +
1.316 + for (unsigned int j = 0; j < componentCount; j++)
1.317 + {
1.318 + if (normalized)
1.319 + {
1.320 + if (NL::is_signed)
1.321 + {
1.322 + const float divisor = 1.0f / (2 * static_cast<float>(NL::max()) + 1);
1.323 + offsetOutput[j] = (2 * static_cast<float>(offsetInput[j]) + 1) * divisor;
1.324 + }
1.325 + else
1.326 + {
1.327 + offsetOutput[j] = static_cast<float>(offsetInput[j]) / NL::max();
1.328 + }
1.329 + }
1.330 + else
1.331 + {
1.332 + offsetOutput[j] = static_cast<float>(offsetInput[j]);
1.333 + }
1.334 + }
1.335 + }
1.336 +}
1.337 +
1.338 +const VertexBuffer11::VertexConverter VertexBuffer11::mPossibleTranslations[NUM_GL_VERTEX_ATTRIB_TYPES][2][4] =
1.339 +{
1.340 + { // GL_BYTE
1.341 + { // unnormalized
1.342 + { ©ToFloatVertexData<GLbyte, 1, false>, false, DXGI_FORMAT_R32_FLOAT, 4 },
1.343 + { ©ToFloatVertexData<GLbyte, 2, false>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
1.344 + { ©ToFloatVertexData<GLbyte, 3, false>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
1.345 + { ©ToFloatVertexData<GLbyte, 4, false>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
1.346 + },
1.347 + { // normalized
1.348 + { ©VertexData<GLbyte, 1, false, true>, true, DXGI_FORMAT_R8_SNORM, 1 },
1.349 + { ©VertexData<GLbyte, 2, false, true>, true, DXGI_FORMAT_R8G8_SNORM, 2 },
1.350 + { ©VertexData<GLbyte, 3, true, true>, false, DXGI_FORMAT_R8G8B8A8_SNORM, 4 },
1.351 + { ©VertexData<GLbyte, 4, false, true>, true, DXGI_FORMAT_R8G8B8A8_SNORM, 4 },
1.352 + },
1.353 + },
1.354 + { // GL_UNSIGNED_BYTE
1.355 + { // unnormalized
1.356 + { ©ToFloatVertexData<GLubyte, 1, false>, false, DXGI_FORMAT_R32_FLOAT, 4 },
1.357 + { ©ToFloatVertexData<GLubyte, 2, false>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
1.358 + { ©ToFloatVertexData<GLubyte, 3, false>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
1.359 + { ©ToFloatVertexData<GLubyte, 4, false>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
1.360 + },
1.361 + { // normalized
1.362 + { ©VertexData<GLubyte, 1, false, true>, true, DXGI_FORMAT_R8_UNORM, 1 },
1.363 + { ©VertexData<GLubyte, 2, false, true>, true, DXGI_FORMAT_R8G8_UNORM, 2 },
1.364 + { ©VertexData<GLubyte, 3, true, true>, false, DXGI_FORMAT_R8G8B8A8_UNORM, 4 },
1.365 + { ©VertexData<GLubyte, 4, false, true>, true, DXGI_FORMAT_R8G8B8A8_UNORM, 4 },
1.366 + },
1.367 + },
1.368 + { // GL_SHORT
1.369 + { // unnormalized
1.370 + { ©ToFloatVertexData<GLshort, 1, false>, false, DXGI_FORMAT_R32_FLOAT, 4 },
1.371 + { ©ToFloatVertexData<GLshort, 2, false>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
1.372 + { ©ToFloatVertexData<GLshort, 3, false>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
1.373 + { ©ToFloatVertexData<GLshort, 4, false>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
1.374 + },
1.375 + { // normalized
1.376 + { ©VertexData<GLshort, 1, false, true>, true, DXGI_FORMAT_R16_SNORM, 2 },
1.377 + { ©VertexData<GLshort, 2, false, true>, true, DXGI_FORMAT_R16G16_SNORM, 4 },
1.378 + { ©VertexData<GLshort, 3, true, true>, false, DXGI_FORMAT_R16G16B16A16_SNORM, 8 },
1.379 + { ©VertexData<GLshort, 4, false, true>, true, DXGI_FORMAT_R16G16B16A16_SNORM, 8 },
1.380 + },
1.381 + },
1.382 + { // GL_UNSIGNED_SHORT
1.383 + { // unnormalized
1.384 + { ©ToFloatVertexData<GLushort, 1, false>, false, DXGI_FORMAT_R32_FLOAT, 4 },
1.385 + { ©ToFloatVertexData<GLushort, 2, false>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
1.386 + { ©ToFloatVertexData<GLushort, 3, false>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
1.387 + { ©ToFloatVertexData<GLushort, 4, false>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
1.388 + },
1.389 + { // normalized
1.390 + { ©VertexData<GLushort, 1, false, true>, true, DXGI_FORMAT_R16_UNORM, 2 },
1.391 + { ©VertexData<GLushort, 2, false, true>, true, DXGI_FORMAT_R16G16_UNORM, 4 },
1.392 + { ©VertexData<GLushort, 3, true, true>, false, DXGI_FORMAT_R16G16B16A16_UNORM, 8 },
1.393 + { ©VertexData<GLushort, 4, false, true>, true, DXGI_FORMAT_R16G16B16A16_UNORM, 8 },
1.394 + },
1.395 + },
1.396 + { // GL_FIXED
1.397 + { // unnormalized
1.398 + { ©FixedVertexData<1>, false, DXGI_FORMAT_R32_FLOAT, 4 },
1.399 + { ©FixedVertexData<2>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
1.400 + { ©FixedVertexData<3>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
1.401 + { ©FixedVertexData<4>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
1.402 + },
1.403 + { // normalized
1.404 + { ©FixedVertexData<1>, false, DXGI_FORMAT_R32_FLOAT, 4 },
1.405 + { ©FixedVertexData<2>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
1.406 + { ©FixedVertexData<3>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
1.407 + { ©FixedVertexData<4>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
1.408 + },
1.409 + },
1.410 + { // GL_FLOAT
1.411 + { // unnormalized
1.412 + { ©VertexData<GLfloat, 1, false, false>, true, DXGI_FORMAT_R32_FLOAT, 4 },
1.413 + { ©VertexData<GLfloat, 2, false, false>, true, DXGI_FORMAT_R32G32_FLOAT, 8 },
1.414 + { ©VertexData<GLfloat, 3, false, false>, true, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
1.415 + { ©VertexData<GLfloat, 4, false, false>, true, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
1.416 + },
1.417 + { // normalized
1.418 + { ©VertexData<GLfloat, 1, false, false>, true, DXGI_FORMAT_R32_FLOAT, 4 },
1.419 + { ©VertexData<GLfloat, 2, false, false>, true, DXGI_FORMAT_R32G32_FLOAT, 8 },
1.420 + { ©VertexData<GLfloat, 3, false, false>, true, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
1.421 + { ©VertexData<GLfloat, 4, false, false>, true, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
1.422 + },
1.423 + },
1.424 +};
1.425 +
1.426 +const VertexBuffer11::VertexConverter &VertexBuffer11::getVertexConversion(const gl::VertexAttribute &attribute)
1.427 +{
1.428 + unsigned int typeIndex = 0;
1.429 + switch (attribute.mType)
1.430 + {
1.431 + case GL_BYTE: typeIndex = 0; break;
1.432 + case GL_UNSIGNED_BYTE: typeIndex = 1; break;
1.433 + case GL_SHORT: typeIndex = 2; break;
1.434 + case GL_UNSIGNED_SHORT: typeIndex = 3; break;
1.435 + case GL_FIXED: typeIndex = 4; break;
1.436 + case GL_FLOAT: typeIndex = 5; break;
1.437 + default: UNREACHABLE(); break;
1.438 + }
1.439 +
1.440 + return mPossibleTranslations[typeIndex][attribute.mNormalized ? 1 : 0][attribute.mSize - 1];
1.441 +}
1.442 +
1.443 +}
