diff options
Diffstat (limited to 'Source/ThirdParty/ANGLE/src/libGLESv2/Buffer.cpp')
-rw-r--r-- | Source/ThirdParty/ANGLE/src/libGLESv2/Buffer.cpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/Source/ThirdParty/ANGLE/src/libGLESv2/Buffer.cpp b/Source/ThirdParty/ANGLE/src/libGLESv2/Buffer.cpp new file mode 100644 index 0000000..43993e7 --- /dev/null +++ b/Source/ThirdParty/ANGLE/src/libGLESv2/Buffer.cpp @@ -0,0 +1,56 @@ +// +// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// Buffer.cpp: Implements the gl::Buffer class, representing storage of vertex and/or +// index data. Implements GL buffer objects and related functionality. +// [OpenGL ES 2.0.24] section 2.9 page 21. + +#include "libGLESv2/Buffer.h" + +namespace gl +{ + +Buffer::Buffer(GLuint id) : RefCountObject(id) +{ + mContents = NULL; + mSize = 0; + mUsage = GL_DYNAMIC_DRAW; +} + +Buffer::~Buffer() +{ + delete[] mContents; +} + +void Buffer::bufferData(const void *data, GLsizeiptr size, GLenum usage) +{ + if (size == 0) + { + delete[] mContents; + mContents = NULL; + } + else if (size != mSize) + { + delete[] mContents; + mContents = new GLubyte[size]; + memset(mContents, 0, size); + } + + if (data != NULL && size > 0) + { + memcpy(mContents, data, size); + } + + mSize = size; + mUsage = usage; +} + +void Buffer::bufferSubData(const void *data, GLsizeiptr size, GLintptr offset) +{ + memcpy(mContents + offset, data, size); +} + +} |