Fix -Wclass-memaccess warnings

libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp

@@ -146,7 +146,7 @@ void ParticleEffectEntityRenderer::doRenderUpdateAsynchronousTyped(const TypedEn
         particleUniforms.rotateWithEntity = _particleProperties.rotateWithEntity ? 1 : 0;
     });
     // Update particle uniforms
-    memcpy(&_uniformBuffer.edit<ParticleUniforms>(), &particleUniforms, sizeof(ParticleUniforms));
+    _uniformBuffer.edit<ParticleUniforms>() = particleUniforms;
 }
 
 ItemKey ParticleEffectEntityRenderer::getKey() {

libraries/gpu-gl-common/src/gpu/gl/GLBackend.h

@@ -378,10 +378,10 @@ protected:
             TransformCamera _cams[2];
 
             Cameras(){};
-            Cameras(const TransformCamera& cam) { memcpy(_cams, &cam, sizeof(TransformCamera)); };
+            Cameras(const TransformCamera& cam) { _cams[0] = cam; };
             Cameras(const TransformCamera& camL, const TransformCamera& camR) {
-                memcpy(_cams, &camL, sizeof(TransformCamera));
-                memcpy(_cams + 1, &camR, sizeof(TransformCamera));
+                _cams[0] = camL;
+                _cams[1] = camR;
             };
         };
 

libraries/gpu-gl-common/src/gpu/gl/GLBackendState.cpp

@@ -331,8 +331,7 @@ void GLBackend::do_setStateBlendFactor(const Batch& batch, size_t paramOffset) {
 
 void GLBackend::do_setStateScissorRect(const Batch& batch, size_t paramOffset) {
     Vec4i rect;
-    memcpy(&rect, batch.readData(batch._params[paramOffset]._uint), sizeof(Vec4i));
-
+    memcpy(glm::value_ptr(rect), batch.readData(batch._params[paramOffset]._uint), sizeof(Vec4i));
     if (_stereo.isStereo()) {
         rect.z /= 2;
         if (_stereo._pass) {

libraries/gpu-gl-common/src/gpu/gl/GLBackendTransform.cpp

@@ -24,7 +24,7 @@ void GLBackend::do_setViewTransform(const Batch& batch, size_t paramOffset) {
 }
 
 void GLBackend::do_setProjectionTransform(const Batch& batch, size_t paramOffset) {
-    memcpy(&_transform._projection, batch.readData(batch._params[paramOffset]._uint), sizeof(Mat4));
+    memcpy(glm::value_ptr(_transform._projection), batch.readData(batch._params[paramOffset]._uint), sizeof(Mat4));
     _transform._invalidProj = true;
 }
 
@@ -35,7 +35,7 @@ void GLBackend::do_setProjectionJitter(const Batch& batch, size_t paramOffset) {
 }
 
 void GLBackend::do_setViewportTransform(const Batch& batch, size_t paramOffset) {
-    memcpy(&_transform._viewport, batch.readData(batch._params[paramOffset]._uint), sizeof(Vec4i));
+    memcpy(glm::value_ptr(_transform._viewport), batch.readData(batch._params[paramOffset]._uint), sizeof(Vec4i));
 
 #ifdef GPU_STEREO_DRAWCALL_INSTANCED
     {

libraries/octree/src/OctreePacketData.cpp

@@ -16,6 +16,7 @@
 
 #include "OctreeLogging.h"
 #include "NumericalConstants.h"
+#include <glm/gtc/type_ptr.hpp>
 
 bool OctreePacketData::_debug = false;
 AtomicUIntStat OctreePacketData::_totalBytesOfOctalCodes { 0 };
@@ -702,17 +703,17 @@ void OctreePacketData::debugBytes() {
 }
 
 int OctreePacketData::unpackDataFromBytes(const unsigned char* dataBytes, glm::vec2& result) {
-    memcpy(&result, dataBytes, sizeof(result));
+    memcpy(glm::value_ptr(result), dataBytes, sizeof(result));
     return sizeof(result);
 }
 
 int OctreePacketData::unpackDataFromBytes(const unsigned char* dataBytes, glm::vec3& result) {
-    memcpy(&result, dataBytes, sizeof(result));
+    memcpy(glm::value_ptr(result), dataBytes, sizeof(result));
     return sizeof(result);
 }
 
 int OctreePacketData::unpackDataFromBytes(const unsigned char* dataBytes, glm::u8vec3& result) {
-    memcpy(&result, dataBytes, sizeof(result));
+    memcpy(glm::value_ptr(result), dataBytes, sizeof(result));
     return sizeof(result);
 }
 
@@ -743,7 +744,12 @@ int OctreePacketData::unpackDataFromBytes(const unsigned char *dataBytes, QVecto
     memcpy(&length, dataBytes, sizeof(uint16_t));
     dataBytes += sizeof(length);
     result.resize(length);
-    memcpy(result.data(), dataBytes, length * sizeof(glm::vec3));
+
+    for(int i=0;i<length;i++) {
+        memcpy(glm::value_ptr(result[i]), dataBytes, sizeof(glm::vec3));
+        dataBytes += sizeof(glm::vec3);
+    }
+
     return sizeof(uint16_t) + length * sizeof(glm::vec3);
 }
 

libraries/shared/src/BufferParser.h

@@ -18,6 +18,7 @@
 #include "GLMHelpers.h"
 #include "ByteCountCoding.h"
 #include "PropertyFlags.h"
+#include <glm/gtc/type_ptr.hpp>
 
 class BufferParser {
 public:
@@ -98,7 +99,10 @@ template<>
 inline void BufferParser::readValue(QVector<glm::vec3>& result) {
     uint16_t length; readValue(length);
     result.resize(length);
-    memcpy(result.data(), _data + _offset, sizeof(glm::vec3) * length);
+    for(int i=0;i<length;i++) {
+        memcpy(glm::value_ptr(result[i]), _data + _offset + (sizeof(glm::vec3)*i), sizeof(glm::vec3) * length);
+    }
+
     _offset += sizeof(glm::vec3) * length;
 }
 

libraries/shared/src/GeometryUtil.cpp

@@ -620,7 +620,9 @@ void PolygonClip::clipToScreen(const glm::vec2* inputVertexArray, int inLength,
     glm::vec2* tempVertexArrayB = new glm::vec2[maxLength];
 
     // set up our temporary arrays
-    memcpy(tempVertexArrayA, inputVertexArray, sizeof(glm::vec2) * inLength);
+    for(int i=0;i<inLength;i++) {
+        tempVertexArrayA[i] = inputVertexArray[i];
+    }
 
     // Left edge
     LineSegment2 edge;

libraries/shared/src/shared/ConicalViewFrustum.cpp

@@ -14,6 +14,7 @@
 
 #include "../NumericalConstants.h"
 #include "../ViewFrustum.h"
+#include <glm/gtc/type_ptr.hpp>
 
 void ConicalViewFrustum::set(const ViewFrustum& viewFrustum) {
     // The ConicalViewFrustum has two parts: a central sphere (same as ViewFrustum) and a circular cone that bounds the frustum part.
@@ -131,9 +132,9 @@ int ConicalViewFrustum::serialize(unsigned char* destinationBuffer) const {
 int ConicalViewFrustum::deserialize(const unsigned char* sourceBuffer) {
     const unsigned char* startPosition = sourceBuffer;
 
-    memcpy(&_position, sourceBuffer, sizeof(_position));
+    memcpy(glm::value_ptr(_position), sourceBuffer, sizeof(_position));
     sourceBuffer += sizeof(_position);
-    memcpy(&_direction, sourceBuffer, sizeof(_direction));
+    memcpy(glm::value_ptr(_direction), sourceBuffer, sizeof(_direction));
     sourceBuffer += sizeof(_direction);
     sourceBuffer += unpackFloatAngleFromTwoByte((uint16_t*)sourceBuffer, &_angle);
     sourceBuffer += unpackClipValueFromTwoByte(sourceBuffer, _farClip);