void StructuredBuffer::readBlob(void* pDest, size_t offset, size_t size)
{
if(size + offset > mSize)
{
logWarning("StructuredBuffer::readBlob() - trying to read more data than what the buffer contains. Call is ignored.");
return;
}
readFromGPU();
memcpy(pDest, mData.data() + offset, size);
}
void StructuredBuffer::getVariable(size_t offset, size_t elementIndex, VarType& value)
{
verify_element_index();
if(checkVariableByOffset<VarType>(offset, 1, mpReflector.get()))
{
readFromGPU();
const uint8_t* pVar = mData.data() + offset + elementIndex * mElementSize;
value = *(const VarType*)pVar;
}
}
void StructuredBuffer::getVariableArray(size_t offset, size_t count, size_t elementIndex, VarType value[])
{
verify_element_index();
if (checkVariableByOffset<VarType>(offset, count, mpReflector.get()))
{
readFromGPU();
const uint8_t* pVar = mData.data() + offset;
const VarType* pMat = (VarType*)(pVar + elementIndex * mElementSize);
for (size_t i = 0; i < count; i++)
{
value[i] = pMat[i];
}
}
}
bool GlesBox::draw_end(GBConfig& conf) {
float angle = 0.0f;
bool need_egl = false, need_fbo = false, need_online = false;
switch(conf.type) {
case GB_DRAW_ONLINE_WITHOUT_OPENGLES_CONTEXT:
need_egl = true;
case GB_DRAW_ONLINE_WITH_OPENGLES_CONTEXT:
angle = conf.screen_angle;
break;
case GB_DRAW_BOTH_WITH_OPENGLES_CONTEXT:
need_online = true;
case GB_DRAW_OFFLINE_WITH_OPENGLES_CONTEXT:
need_fbo = true;
angle = conf.offline_angle;
break;
case GB_DRAW_BOTH_WITHOUT_OPENGLES_CONTEXT:
need_online = true;
case GB_DRAW_OFFLINE_WITHOUT_OPENGLES_CONTEXT:
need_fbo = true;
need_egl = true;
angle = conf.offline_angle;
break;
default:
LOGE("GlesBox: not support this draw type.");
return false;
}
if (need_fbo) {
//read from GPU and do image translation
const uint8_t *image = readFromGPU();
unbindFrameBuffer();
if (conf.screen_width > 0 && conf.screen_height > 0)
glViewport(conf.screen_x, conf.screen_y, conf.screen_width, conf.screen_height);
if (need_online)
swap(conf.screen_angle + angle + 180.0f);
switch(conf.offline_type) {
case GB_IMAGE_YUV420:
libyuv::ABGRToI420((uint8*)image, core_->width_*4,
conf.offline_data, conf.offline_widthstep,
conf.offline_data + conf.offline_widthstep * conf.offline_height,
conf.offline_widthstep >> 1,
conf.offline_data + conf.offline_widthstep * conf.offline_height * 5 / 4,
conf.offline_widthstep >> 1,
conf.offline_width, conf.offline_height);
break;
case GB_IMAGE_RGB24:
libyuv::ARGBToRGB24((uint8*)image, core_->width_*4,
conf.offline_data, conf.offline_widthstep, conf.offline_width, conf.offline_height);
break;
case GB_IMAGE_RGBA32:
memcpy(conf.offline_data, image, core_->width_*core_->height_*4);
break;
case GB_IMAGE_YUY2:
LOGE("glesbox: will support this image format later.");
return false;
case GB_IMAGE_UNKNOWN:
default:
LOGE("glesbox: not support this image format.");
return false;
}
}
if (need_egl)
unbindEGLContext();
glViewport(core_->viewport_old_[0], core_->viewport_old_[1],
core_->viewport_old_[2], core_->viewport_old_[3]);
return true;
}
