/* * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #pragma once #include #include #include #include // Convenient class used to hold the common context data shared // by both the GLESv1 and GLESv2 decoders. This corresponds to // vertex attribute buffers. class GLDecoderContextData { public: // List of supported vertex attribute indices, as they appear in // a glVertexAttribPointer() call. typedef enum { VERTEX_LOCATION = 0, NORMAL_LOCATION = 1, COLOR_LOCATION = 2, POINTSIZE_LOCATION = 3, TEXCOORD0_LOCATION = 4, TEXCOORD1_LOCATION = 5, TEXCOORD2_LOCATION = 6, TEXCOORD3_LOCATION = 7, TEXCOORD4_LOCATION = 8, TEXCOORD5_LOCATION = 9, TEXCOORD6_LOCATION = 10, TEXCOORD7_LOCATION = 11, MATRIXINDEX_LOCATION = 12, WEIGHT_LOCATION = 13, LAST_LOCATION = 14 } PointerDataLocation; // Default constructor. GLDecoderContextData(int numLocations = kMaxVertexAttributes) : mPointerData(), mNumLocations(static_cast(numLocations)) { mPointerData.resize(mNumLocations); } // Store |len| bytes from |data| into the buffer associated with // vertex attribute index |loc|. void storePointerData(unsigned int loc, void *data, size_t len) { if (loc < mNumLocations) { std::string& ptrData = mPointerData[loc]; ptrData.assign(reinterpret_cast(data), len); } else { // User error, don't do anything here } } // Return pointer to data associated with vertex attribute index |loc| void* pointerData(unsigned int loc) const { if (loc < mNumLocations) { return const_cast(mPointerData[loc].c_str()); } else { // User error. Return nullptr. return nullptr; } } private: static const int kMaxVertexAttributes = 64; std::vector mPointerData; unsigned mNumLocations = 0; };