void
Compress(const std::vector<T>& data, BufferT& out)
{
ssize_t countBS = sizeof(T)*data.size();
out.resize(snappy::MaxCompressedLength(countBS));
size_t output_length=0;
snappy::RawCompress(reinterpret_cast<const char*>(&data[0]),
countBS,
&out[0],
&output_length);
out.resize(output_length);
}
SCERROR SCREEN_TFont::Print(int x, int y, pwide_t text)
{
Gfx3DDevice* gfx = SCREEN::Get3DDevice();
if ( !gfx ) fail_because(SCREEN_IS_NOT_INITIALIZED_OR_3D_UNSUPPORTED);
gfx->Ortho2D();
//gfx->Translate(x,SCREEN::GetHeight()-font_->GetTextHeight()-y);
gfx->SetState(GFX3D_STATE_MINMAGFILTER,GFX3D_NEAREST);
gfx->SetState(GFX3D_STATE_ENVMODE,GFX3D_TEXTURE_MODULATE);
gfx->SetState(GFX3D_STATE_BLENDING,GFX3D_DISABLE);
gfx->SetState(GFX3D_STATE_ALPHA_TEST,GFX3D_DISABLE);
gfx->SetState(GFX3D_STATE_DEPTH_FUNC,GFX3D_ALWAYS);
// u16_t indices[] = {0,1,2,2,3,0};
u16_t indices[] = {0,1,2,2,3,0};
mrgba_t color = mRGBA_t(255,255,255,255);
font_->FillSymbols(symbols_,text);
float screen_height = (float)SCREEN::WndHeight();
for ( unsigned i = 0; i < symbols_.Count(); ++i ) {
gfx->SetTexture(font_->GetSymbolTexture(symbols_[i].symbol));
VxB_VERTEX vertices[4];
font_->FillQuad(vertices,symbols_[i].symbol,symbols_[i].x + x,screen_height - symbols_[i].y - y);
vertices[0].color = color;
vertices[1].color = color;
vertices[2].color = color;
vertices[3].color = color;
gfx->DrawIndexedPrimitive(GFX3D_TRILIST,vertices,4,indices,6,GFX3D_VxB_VCT);
}
return SCE_OK;
}
void
Compress(const std::vector<T>& data, BufferT& out)
{
ssize_t countBS = sizeof(T)*data.size();
// allocate as much memory as we need
int maxOut = LZ4_compressBound(countBS);
out.resize(maxOut);
int r = LZ4_compress((const char*)&data.front(), (char*)&out.front(), countBS);
if(r == 0) {
Util::fire_exception("lz4 compression failed");
}
// trim to really used size
out.resize(r);
}
void
Compress(const std::vector<T>& data, BufferT& out)
{
ssize_t countBS = sizeof(T)*data.size();
lzo_uint outLen=(countBS + countBS / 16 + 64 + 3); // from simple.c in LZO distrib
// allocate as much memory as we need
out.resize(outLen);
int32_t r = lzo1x_999_compress(
reinterpret_cast<const lzo_bytep>(&data.front()),
countBS,
&out.front(),
&outLen,
&lzoTemp[0]);
if (r != LZO_E_OK) {
Util::fire_exception("lzo compression failed");
}
// trim to really used size
out.resize(outLen);
}
void
WebGLContext::BufferDataT(GLenum target,
const BufferT& data,
GLenum usage)
{
if (IsContextLost())
return;
if (!ValidateBufferTarget(target, "bufferData"))
return;
const WebGLRefPtr<WebGLBuffer>& bufferSlot = GetBufferSlotByTarget(target);
data.ComputeLengthAndData();
// Careful: data.Length() could conceivably be any uint32_t, but GLsizeiptr
// is like intptr_t.
if (!CheckedInt<GLsizeiptr>(data.Length()).isValid())
return ErrorOutOfMemory("bufferData: bad size");
if (!ValidateBufferUsageEnum(usage, "bufferData: usage"))
return;
WebGLBuffer* boundBuffer = bufferSlot.get();
if (!boundBuffer)
return ErrorInvalidOperation("bufferData: no buffer bound!");
MakeContextCurrent();
InvalidateBufferFetching();
GLenum error = CheckedBufferData(target, data.Length(), data.Data(), usage);
if (error) {
GenerateWarning("bufferData generated error %s", ErrorName(error));
return;
}
boundBuffer->SetByteLength(data.Length());
if (!boundBuffer->ElementArrayCacheBufferData(data.Data(), data.Length()))
return ErrorOutOfMemory("bufferData: out of memory");
}
void
WebGLContext::BufferSubDataT(GLenum target,
WebGLsizeiptr byteOffset,
const BufferT& data)
{
if (IsContextLost())
return;
if (!ValidateBufferTarget(target, "bufferSubData"))
return;
WebGLRefPtr<WebGLBuffer>& bufferSlot = GetBufferSlotByTarget(target);
if (byteOffset < 0)
return ErrorInvalidValue("bufferSubData: negative offset");
WebGLBuffer* boundBuffer = bufferSlot.get();
if (!boundBuffer)
return ErrorInvalidOperation("bufferData: no buffer bound!");
data.ComputeLengthAndData();
CheckedInt<WebGLsizeiptr> checked_neededByteLength =
CheckedInt<WebGLsizeiptr>(byteOffset) + data.Length();
if (!checked_neededByteLength.isValid()) {
ErrorInvalidValue("bufferSubData: Integer overflow computing the needed"
" byte length.");
return;
}
if (checked_neededByteLength.value() > boundBuffer->ByteLength()) {
ErrorInvalidValue("bufferSubData: Not enough data. Operation requires"
" %d bytes, but buffer only has %d bytes.",
checked_neededByteLength.value(),
boundBuffer->ByteLength());
return;
}
boundBuffer->ElementArrayCacheBufferSubData(byteOffset, data.Data(),
data.Length());
MakeContextCurrent();
gl->fBufferSubData(target, byteOffset, data.Length(), data.Data());
}
void
WebGL2Context::GetBufferSubDataT(GLenum target, GLintptr offset, const BufferT& data)
{
if (IsContextLost())
return;
// For the WebGLBuffer bound to the passed target, read
// returnedData.byteLength bytes from the buffer starting at byte
// offset offset and write them to returnedData.
// If zero is bound to target, an INVALID_OPERATION error is
// generated.
if (!ValidateBufferTarget(target, "getBufferSubData"))
return;
// If offset is less than zero, an INVALID_VALUE error is
// generated.
if (offset < 0)
return ErrorInvalidValue("getBufferSubData: negative offset");
WebGLRefPtr<WebGLBuffer>& bufferSlot = GetBufferSlotByTarget(target);
WebGLBuffer* boundBuffer = bufferSlot.get();
if (!boundBuffer)
return ErrorInvalidOperation("getBufferSubData: no buffer bound");
// If offset + returnedData.byteLength would extend beyond the end
// of the buffer an INVALID_VALUE error is generated.
data.ComputeLengthAndData();
CheckedInt<WebGLsizeiptr> neededByteLength = CheckedInt<WebGLsizeiptr>(offset) + data.LengthAllowShared();
if (!neededByteLength.isValid()) {
ErrorInvalidValue("getBufferSubData: Integer overflow computing the needed"
" byte length.");
return;
}
if (neededByteLength.value() > boundBuffer->ByteLength()) {
ErrorInvalidValue("getBufferSubData: Not enough data. Operation requires"
" %d bytes, but buffer only has %d bytes.",
neededByteLength.value(), boundBuffer->ByteLength());
return;
}
// If target is TRANSFORM_FEEDBACK_BUFFER, and any transform
// feedback object is currently active, an INVALID_OPERATION error
// is generated.
WebGLTransformFeedback* currentTF = mBoundTransformFeedback;
if (target == LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER && currentTF) {
if (currentTF->mIsActive)
return ErrorInvalidOperation("getBufferSubData: Currently bound transform"
" feedback is active");
// https://github.com/NVIDIA/WebGL/commit/63aff5e58c1d79825a596f0f4aa46174b9a5f72c
// Performing reads and writes on a buffer that is currently
// bound for transform feedback causes undefined results in
// GLES3.0 and OpenGL 4.5. In practice results of reads and
// writes might be consistent as long as transform feedback
// objects are not active, but neither GLES3.0 nor OpenGL 4.5
// spec guarantees this - just being bound for transform
// feedback is sufficient to cause undefined results.
BindTransformFeedback(LOCAL_GL_TRANSFORM_FEEDBACK, nullptr);
}
/* If the buffer is written and read sequentially by other
* operations and getBufferSubData, it is the responsibility of
* the WebGL API to ensure that data are access
* consistently. This applies even if the buffer is currently
* bound to a transform feedback binding point.
*/
void* ptr = gl->fMapBufferRange(target, offset, data.LengthAllowShared(), LOCAL_GL_MAP_READ_BIT);
// Warning: Possibly shared memory. See bug 1225033.
memcpy(data.DataAllowShared(), ptr, data.LengthAllowShared());
gl->fUnmapBuffer(target);
if (target == LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER && currentTF) {
BindTransformFeedback(LOCAL_GL_TRANSFORM_FEEDBACK, currentTF);
}
}
bool end(const BufferT& dataBuffer)
{
return this->end(dataBuffer.data(), dataBuffer.size());
}
bool end(const BufferT& dataBuffer, const header_block& trailers = {})
{
return this->end(dataBuffer.data(), dataBuffer.size(), trailers);
}
void handle_write(const BufferT &buffer, HandlerT &handler)
{
handler(std::error_code(), buffer.size());
}
BufferT(const BufferT& rhs) throw() : m_length(0), m_capacity(0)
{
append(rhs, rhs.size());
}