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147 lines
4.1 KiB
147 lines
4.1 KiB
/*
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* Copyright 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <renderengine/Mesh.h>
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#include <utils/Log.h>
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namespace android {
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namespace renderengine {
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Mesh::Mesh(Primitive primitive, size_t vertexCount, size_t vertexSize, size_t texCoordSize,
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size_t cropCoordsSize, size_t shadowColorSize, size_t shadowParamsSize,
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size_t indexCount)
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: mVertexCount(vertexCount),
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mVertexSize(vertexSize),
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mTexCoordsSize(texCoordSize),
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mCropCoordsSize(cropCoordsSize),
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mShadowColorSize(shadowColorSize),
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mShadowParamsSize(shadowParamsSize),
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mPrimitive(primitive),
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mIndexCount(indexCount) {
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if (vertexCount == 0) {
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mVertices.resize(1);
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mVertices[0] = 0.0f;
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mStride = 0;
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return;
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}
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size_t stride = vertexSize + texCoordSize + cropCoordsSize + shadowColorSize + shadowParamsSize;
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size_t remainder = (stride * vertexCount) / vertexCount;
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// Since all of the input parameters are unsigned, if stride is less than
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// either vertexSize or texCoordSize, it must have overflowed. remainder
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// will be equal to stride as long as stride * vertexCount doesn't overflow.
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if ((stride < vertexSize) || (remainder != stride)) {
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ALOGE("Overflow in Mesh(..., %zu, %zu, %zu, %zu, %zu, %zu)", vertexCount, vertexSize,
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texCoordSize, cropCoordsSize, shadowColorSize, shadowParamsSize);
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mVertices.resize(1);
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mVertices[0] = 0.0f;
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mVertexCount = 0;
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mVertexSize = 0;
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mTexCoordsSize = 0;
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mCropCoordsSize = 0;
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mShadowColorSize = 0;
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mShadowParamsSize = 0;
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mStride = 0;
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return;
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}
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mVertices.resize(stride * vertexCount);
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mStride = stride;
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mIndices.resize(indexCount);
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}
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Mesh::Primitive Mesh::getPrimitive() const {
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return mPrimitive;
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}
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float const* Mesh::getPositions() const {
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return mVertices.data();
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}
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float* Mesh::getPositions() {
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return mVertices.data();
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}
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float const* Mesh::getTexCoords() const {
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return mVertices.data() + mVertexSize;
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}
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float* Mesh::getTexCoords() {
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return mVertices.data() + mVertexSize;
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}
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float const* Mesh::getCropCoords() const {
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return mVertices.data() + mVertexSize + mTexCoordsSize;
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}
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float* Mesh::getCropCoords() {
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return mVertices.data() + mVertexSize + mTexCoordsSize;
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}
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float const* Mesh::getShadowColor() const {
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return mVertices.data() + mVertexSize + mTexCoordsSize + mCropCoordsSize;
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}
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float* Mesh::getShadowColor() {
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return mVertices.data() + mVertexSize + mTexCoordsSize + mCropCoordsSize;
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}
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float const* Mesh::getShadowParams() const {
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return mVertices.data() + mVertexSize + mTexCoordsSize + mCropCoordsSize + mShadowColorSize;
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}
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float* Mesh::getShadowParams() {
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return mVertices.data() + mVertexSize + mTexCoordsSize + mCropCoordsSize + mShadowColorSize;
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}
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uint16_t const* Mesh::getIndices() const {
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return mIndices.data();
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}
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uint16_t* Mesh::getIndices() {
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return mIndices.data();
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}
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size_t Mesh::getVertexCount() const {
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return mVertexCount;
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}
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size_t Mesh::getVertexSize() const {
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return mVertexSize;
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}
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size_t Mesh::getTexCoordsSize() const {
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return mTexCoordsSize;
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}
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size_t Mesh::getShadowColorSize() const {
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return mShadowColorSize;
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}
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size_t Mesh::getShadowParamsSize() const {
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return mShadowParamsSize;
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}
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size_t Mesh::getByteStride() const {
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return mStride * sizeof(float);
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}
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size_t Mesh::getStride() const {
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return mStride;
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}
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size_t Mesh::getIndexCount() const {
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return mIndexCount;
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}
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} // namespace renderengine
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} // namespace android
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