void* GLES2HardwareVertexBuffer::lockImpl(size_t offset,
size_t length,
LockOptions options)
{
if (mIsLocked)
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Invalid attempt to lock an index buffer that has already been locked",
"GLES2HardwareVertexBuffer::lock");
}
GLenum access = 0;
// Use glMapBuffer
static_cast<GLES2HardwareBufferManagerBase*>(mMgr)->getStateCacheManager()->bindGLBuffer(GL_ARRAY_BUFFER, mBufferId);
void* pBuffer;
#if OGRE_NO_GLES3_SUPPORT == 0 || defined(GL_EXT_map_buffer_range)
if (mUsage & HBU_WRITE_ONLY)
{
access = GL_MAP_WRITE_BIT_EXT;
access |= GL_MAP_FLUSH_EXPLICIT_BIT_EXT;
if(options == HBL_DISCARD || options == HBL_NO_OVERWRITE)
{
// Discard the buffer
access |= GL_MAP_INVALIDATE_RANGE_BIT_EXT;
}
access |= GL_MAP_UNSYNCHRONIZED_BIT_EXT;
}
else if (options == HBL_READ_ONLY)
access = GL_MAP_READ_BIT_EXT;
else
access = GL_MAP_READ_BIT_EXT | GL_MAP_WRITE_BIT_EXT;
OGRE_CHECK_GL_ERROR(pBuffer = glMapBufferRangeEXT(GL_ARRAY_BUFFER, offset, length, access));
#else
if(options == HBL_DISCARD || options == HBL_NO_OVERWRITE)
{
// Discard the buffer
OGRE_CHECK_GL_ERROR(glBufferData(GL_ARRAY_BUFFER, mSizeInBytes, NULL,
GLES2HardwareBufferManager::getGLUsage(mUsage)));
}
if (mUsage & HBU_WRITE_ONLY)
access = GL_WRITE_ONLY_OES;
OGRE_CHECK_GL_ERROR(pBuffer = glMapBufferOES(GL_ARRAY_BUFFER, access));
#endif
if(pBuffer == 0)
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Vertex Buffer: Out of memory", "GLES2HardwareVertexBuffer::lock");
}
// return offsetted
void* retPtr = static_cast<void*>(
static_cast<unsigned char*>(pBuffer) + offset);
mIsLocked = true;
return retPtr;
}
void* GLESHardwareVertexBuffer::lockImpl(size_t offset,
size_t length,
LockOptions options)
{
GLenum access = 0;
if (mIsLocked)
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Invalid attempt to lock an index buffer that has already been locked",
"GLESHardwareVertexBuffer::lock");
}
void* retPtr = 0;
GLESHardwareBufferManager* glBufManager = static_cast<GLESHardwareBufferManager*>(HardwareBufferManager::getSingletonPtr());
// Try to use scratch buffers for smaller buffers
if (length < glBufManager->getGLMapBufferThreshold())
{
// if this fails, we fall back on mapping
retPtr = glBufManager->allocateScratch((uint32)length);
if (retPtr)
{
mLockedToScratch = true;
mScratchOffset = offset;
mScratchSize = length;
mScratchPtr = retPtr;
mScratchUploadOnUnlock = (options != HBL_READ_ONLY);
if (options != HBL_DISCARD)
{
// have to read back the data before returning the pointer
readData(offset, length, retPtr);
}
}
}
else
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Invalid Buffer lockSize",
"GLESHardwareVertexBuffer::lock");
}
#if GL_OES_mapbuffer
if (!retPtr)
{
// Use glMapBuffer
glBindBuffer( GL_ARRAY_BUFFER, mBufferId );
// Use glMapBuffer
if(options == HBL_DISCARD)
{
// Discard the buffer
glBufferData(GL_ARRAY_BUFFER, mSizeInBytes, NULL,
GLESHardwareBufferManager::getGLUsage(mUsage));
}
if (mUsage & HBU_WRITE_ONLY)
access = GL_WRITE_ONLY_OES;
void* pBuffer = glMapBufferOES( GL_ARRAY_BUFFER, access);
if(pBuffer == 0)
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Vertex Buffer: Out of memory", "GLESHardwareVertexBuffer::lock");
}
// return offsetted
retPtr = static_cast<void*>(
static_cast<unsigned char*>(pBuffer) + offset);
mLockedToScratch = false;
}
#endif
mIsLocked = true;
return retPtr;
}
bool AppCore::render()
{
#if !DISCARD_SKYBOX
// Try to load textures if not already completed
if (_staticTextureCompleteCount <= 6) loadStaticTextureIfAvailable();
#endif
APIFactory::GetInstance().lock(OPENGL_LOCK);
double timestamp = APIFactory::GetInstance().getTimeInMS();
#if !(RENDER_OCTREE_DEBUG_VOXELS || USE_STATIC_POINT_CLOUD)
if ( !(_currentCameraParameterRequest & 1) &&
(timestamp - _lastCameraParameterChangeTimestamp > WVS_RELOAD_DELAY[0]))
{
// Request 1/4 of screen resolution from WVS
requestPointCloudForCurrentView(4);
_currentCameraParameterRequest |= 1;
}
else if ( !(_currentCameraParameterRequest & 2) &&
(timestamp - _lastCameraParameterChangeTimestamp > WVS_RELOAD_DELAY[1]))
{
// Request full screen resolution from WVS
requestPointCloudForCurrentView(1);
_currentCameraParameterRequest |= 3;
}
#endif
if (_isUserInputMode) _renderingRequired = true;
if (_renderQuality < 1.0f) _renderingRequired = true;
#if !(RENDER_OCTREE_DEBUG_VOXELS || USE_STATIC_POINT_CLOUD)
if (_isNewDataAvialable)
{
_renderingRequired = true;
_isNewDataAvialable = false;
}
#endif
if (!_renderingRequired)
{
APIFactory::GetInstance().unlock(OPENGL_LOCK);
APIFactory::GetInstance().processUserInterfaceEvents();
return false;
}
_renderingRequired = false;
// Updates the view frustum that is used for culling etc. based on the current
// camera parameters
_viewFrustum->updateCameraViewParameterCache();
// Clear context
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
#if !DISCARD_SKYBOX
// Render Skybox and ground plane
if (_staticTextureCompleteCount > 0)
{
glUseProgram(_textureShaderProgram.handle);
glUniformMatrix4fv( _textureShaderProgram.uniforms[SHADER_UNIFORM_VIEW_PROJECTION_MATRIX],
1, GL_FALSE, _viewFrustum->getViewProjectionMatrixCachePtr()->f);
MATRIX model;
MatrixTranslation(model, _viewFrustum->getCameraPostionCachePtr()->x,
_viewFrustum->getCameraPostionCachePtr()->y,
_viewFrustum->getCameraPostionCachePtr()->z);
glUniformMatrix4fv( _textureShaderProgram.uniforms[SHADER_UNIFORM_MODEL_MATRIX],
1, GL_FALSE, model.f);
_skybox->render();
}
#endif
// Render points
glUseProgram(_pointShaderProgram.handle);
glUniform3fv( _pointShaderProgram.uniforms[POINT_SHADER_UNIFORM_REGION_ORIGIN],
OCTREE_LEAF_LEVEL + 1, _octree->getRegionOrginArray());
glUniform1fv( _pointShaderProgram.uniforms[POINT_SHADER_UNIFORM_VOXEL_INCIRCLE_DIAMETER],
OCTREE_LEAF_LEVEL + 1,
_octree->getVoxelIncircleDiameterArray());
glUniform1fv( _pointShaderProgram.uniforms[POINT_SHADER_UNIFORM_NODE_INCIRCLE_DIAMETER],
OCTREE_LEAF_LEVEL + 1,
_octree->getNodeIncircleDiameterArray());
glUniform1fv( _pointShaderProgram.uniforms[POINT_SHADER_UNIFORM_VOXEL_SCREENSIZE_CIRCUMCIRCLE_RADIUS],
OCTREE_LEAF_LEVEL + 1,
_voxelScreensizeCircumcircleRadius);
// Set camera position (necessary for backface culling)
glUniform3fv( _pointShaderProgram.uniforms[POINT_SHADER_UNIFORM_CAMERA_POSITION],
1, (GLfloat*)(_viewFrustum->getCameraPostionCachePtr()));
glUniformMatrix4fv( _pointShaderProgram.uniforms[POINT_SHADER_UNIFORM_PROJECTION_MATRIX],
1, GL_FALSE, _viewFrustum->getProjectionMatrixCachePtr()->f);
glUniformMatrix4fv( _pointShaderProgram.uniforms[POINT_SHADER_UNIFORM_VIEW_MATRIX],
1, GL_FALSE, _viewFrustum->getViewMatrixCachePtr()->f);
#if COMPACT_NODE_REGION_ENCODING
const uint32_t regionVoxelFactor = 1;
const uint8_t regionLevelStride = 4;
const uint32_t regionLevelDataType = GL_UNSIGNED_BYTE;
#else
const uint32_t regionVoxelFactor = 2;
const uint8_t regionLevelStride = 8;
const uint32_t regionLevelDataType = GL_UNSIGNED_SHORT;
#endif
#if DIRECT_VBO
#if DIRECT_VBO_DOUBLE_BUFFERED
if (bufferID == 0) bufferID = 1; else bufferID = 0;
#endif
glBindBuffer(GL_ARRAY_BUFFER, _dataVBO[bufferID]);
uint32_t* const gpuBuffer = (uint32_t*)glMapBufferOES(GL_ARRAY_BUFFER, GL_WRITE_ONLY_OES);
uint32_t* const regionLevelBuffer = gpuBuffer;
uint32_t* const voxelBuffer = gpuBuffer + GPU_MAX_POINTS * regionVoxelFactor;
glVertexAttribPointer( POINT_SHADER_ATTRIBUTE_DATA1,
4,
GL_UNSIGNED_BYTE,
GL_FALSE,
0,
(void *)(GPU_MAX_POINTS * regionLevelStride));
glVertexAttribPointer( POINT_SHADER_ATTRIBUTE_DATA2,
4,
regionLevelDataType,
GL_FALSE,
0,
0);
glEnableVertexAttribArray(POINT_SHADER_ATTRIBUTE_DATA1);
glEnableVertexAttribArray(POINT_SHADER_ATTRIBUTE_DATA2);
// Traverse octree, copy points into buffer and call rendering callback
_octree->copyPointsToBuffer(
_renderQuality,
!_isInteractiveMode,
regionLevelBuffer,
voxelBuffer,
&_pointsToRenderCount,
&_renderingRequired);
glDisableVertexAttribArray(POINT_SHADER_ATTRIBUTE_DATA1);
glDisableVertexAttribArray(POINT_SHADER_ATTRIBUTE_DATA2);
glUnmapBufferOES(GL_ARRAY_BUFFER);
#elif NO_VBO
uint32_t* const regionLevelBuffer = _gpuBuffer;
uint32_t* const voxelBuffer = _gpuBuffer + GPU_MAX_POINTS * regionVoxelFactor;
glVertexAttribPointer( POINT_SHADER_ATTRIBUTE_DATA1,
4,
GL_UNSIGNED_BYTE,
GL_FALSE,
4,
voxelBuffer);
glVertexAttribPointer( POINT_SHADER_ATTRIBUTE_DATA2,
4,
regionLevelDataType,
GL_FALSE,
regionLevelStride,
regionLevelBuffer);
glEnableVertexAttribArray(POINT_SHADER_ATTRIBUTE_DATA1);
glEnableVertexAttribArray(POINT_SHADER_ATTRIBUTE_DATA2);
// Traverse octree, copy points into buffer and call rendering callback
_octree->copyPointsToBuffer(
_renderQuality,
!_isInteractiveMode,
regionLevelBuffer,
voxelBuffer,
&_pointsToRenderCount,
&_renderingRequired);
glDisableVertexAttribArray(POINT_SHADER_ATTRIBUTE_DATA1);
glDisableVertexAttribArray(POINT_SHADER_ATTRIBUTE_DATA2);
#endif
#ifdef OPENGL_ES
const GLenum discard_attachments[] = { GL_DEPTH_ATTACHMENT };
glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, discard_attachments);
#endif
if (_renderingRequired & Octree::OCTREE_RENDERING_CANCELED)
{
APIFactory::GetInstance().unlock(OPENGL_LOCK);
//TODO: In case we overestimate the render quality by far this becomes a stupid loop
_octree->estimateInteractiveRenderQuality(&_renderQuality, OCTREE_INTERACTIVE_RENDERING_POINT_THRESHOLD);
return false;
}
#if BENCHMARK_1_MILLION
if (_pointsToRenderCount >= 1000000)
{
_renderingRequired = true;
double time = APIFactory::GetInstance().getTimeInMS();
printf("%f\n", time - _lastFrame);
_lastFrame = time;
}
#endif
if (_isUserInputMode || ((timestamp - _lastCameraParameterChangeTimestamp) < 500))
{
// Within 500ms we consider any input as movement
double_t renderingTimeInMS = APIFactory::GetInstance().getTimeInMS() - timestamp;
if (renderingTimeInMS > (1000.0 / MINIMUM_FRAMERATE))
{
// Time to render last frame took longer than target framerate.
// Lower render quality to speed up framerate.
_renderQuality -= RENDER_QUALITY_FINE_ADJUSTMENT;
_nodeRestoreQuota = 0;
}
else if (renderingTimeInMS < (1000.0 / MAXIMUM_FRAMERATE))
{
_renderQuality += RENDER_QUALITY_FINE_ADJUSTMENT;
_nodeRestoreQuota = 32;
}
_renderingRequired = true;
}
else
{
// No movement with in the last 500ms. Increase render quality
_renderQuality += RENDER_QUALITY_COARSE_ADJUSTMENT;
_isInteractiveMode = false;
}
// Check range of render quality
if (_renderQuality > 1.0f) _renderQuality = 1.0f;
else if (_renderQuality < RENDER_QUALITY_FINE_ADJUSTMENT)
_renderQuality = RENDER_QUALITY_FINE_ADJUSTMENT;
APIFactory::GetInstance().unlock(OPENGL_LOCK);
return true;
}
void* GLESHardwareIndexBuffer::lockImpl(size_t offset,
size_t length,
LockOptions options)
{
if(mIsLocked)
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Invalid attempt to lock an index buffer that has already been locked",
"GLESHardwareIndexBuffer::lock");
}
void* retPtr = 0;
GLenum access = 0;
GLESHardwareBufferManager* glBufManager = static_cast<GLESHardwareBufferManager*>(HardwareBufferManager::getSingletonPtr());
if(length < glBufManager->getGLMapBufferThreshold())
{
retPtr = glBufManager->allocateScratch((uint32)length);
if (retPtr)
{
mLockedToScratch = true;
mScratchOffset = offset;
mScratchSize = length;
mScratchPtr = retPtr;
mScratchUploadOnUnlock = (options != HBL_READ_ONLY);
if (options != HBL_DISCARD)
{
readData(offset, length, retPtr);
}
}
}
else
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Invalid Buffer lockSize",
"GLESHardwareIndexBuffer::lock");
}
#if defined(GL_GLEXT_PROTOTYPES)
if (!retPtr)
{
glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, mBufferId );
// Use glMapBuffer
if(options == HBL_DISCARD)
{
// Discard the buffer
glBufferData(GL_ELEMENT_ARRAY_BUFFER, mSizeInBytes, NULL,
GLESHardwareBufferManager::getGLUsage(mUsage));
}
if (mUsage & HBU_WRITE_ONLY)
access = GL_WRITE_ONLY_OES;
void* pBuffer = glMapBufferOES( GL_ELEMENT_ARRAY_BUFFER, access );
if(pBuffer == 0)
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Index Buffer: Out of memory",
"GLESHardwareIndexBuffer::lock");
}
// return offsetted
retPtr = static_cast<void*>(static_cast<unsigned char*>(pBuffer) + offset);
mLockedToScratch = false;
}
mIsLocked = true;
#endif
return retPtr;
}
void* AEVAMap(AEVA* va, unsigned int elementCount, int writereadmode){
unsigned int writereadmodeOGL = 0;
switch (writereadmode) {
case AEVAMapFlagWritable:
#ifdef AEiOS
writereadmodeOGL=GL_WRITE_ONLY_OES;
#else
writereadmodeOGL=GL_WRITE_ONLY;
#endif
break;
case AEVAMapFlagReadable:
#ifdef AEiOS
return NULL;
#else
writereadmodeOGL=GL_READ_ONLY;
#endif
break;
default:
#ifdef AEiOS
return NULL;
#else
writereadmodeOGL=GL_READ_WRITE;
#endif
break;
}
#ifdef AEiOS
if(va->format.indexType==AEVAFormatIndexType32Bit) va->format.indexType=AEVAFormatIndexType16Bit;
#endif
unsigned int arrayType=va->format.indexType?GL_ELEMENT_ARRAY_BUFFER:GL_ARRAY_BUFFER;
//if(sizeof(GLfloat) not_eq sizeof(char[4]) and sizeof(GLuint)!=sizeof(char[4])) AEError("A GLfloat or GLuint is not equal to 4 bytes on your system! This is very, very, bad.");
if(va->elementCount and va->elementCount not_eq elementCount) return NULL;
//if(sizeof(AEVec3) not_eq 3*sizeof(float)) AEError("AEVec3 is padded, this is bad!");
if(va->elementCount==0){
va->elementCount=elementCount;
#ifdef AEiOS
if(va->format.storageType==AEVAFormatStorageTypeStream) va->format.storageType=0;
#endif
if(va->format.storageType){
glGenBuffers(1, &va->data.vbo);
//glBindBuffer(GL_ARRAY_BUFFER, va->data.vbo);
unsigned int vbotype=0;
switch(va->format.storageType){
#ifndef AEiOS
case AEVAFormatStorageTypeStream:
vbotype=GL_STREAM_DRAW;
break;
#endif
case AEVAFormatStorageTypeDynamic:
vbotype=GL_DYNAMIC_DRAW;
break;
case AEVAFormatStorageTypeStatic:
vbotype=GL_STATIC_DRAW;
break;
}
glBindBuffer(arrayType, va->data.vbo);
glBufferData(arrayType, elementCount * AEVAFormatByteSize(& va->format), NULL,vbotype);
#ifdef AEiOS
void* data = glMapBufferOES(arrayType, writereadmodeOGL);
#else
void* data = glMapBuffer(arrayType, writereadmodeOGL);
#endif
return data;
}
else va->data.pointer=malloc(elementCount * AEVAFormatByteSize(& va->format));
}
if(va->format.storageType){
glBindBuffer(arrayType, va->data.vbo);
#ifdef AEiOS
return glMapBufferOES(arrayType, writereadmodeOGL);
#else
return glMapBuffer(arrayType, writereadmodeOGL);
#endif
}
return va->data.pointer;
}