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82 lines
3.0 KiB
82 lines
3.0 KiB
10 years ago
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#ifndef Magnum_DebugTools_BufferData_h
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#define Magnum_DebugTools_BufferData_h
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/*
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This file is part of Magnum.
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016
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Vladimír Vondruš <mosra@centrum.cz>
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#ifndef MAGNUM_TARGET_WEBGL
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/** @file
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* @brief Function @ref Magnum::DebugTools::bufferData(), @ref Magnum::DebugTools::bufferSubData()
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*/
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#endif
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#include <Corrade/Containers/Array.h>
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#include "Magnum/Buffer.h"
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#include "Magnum/DebugTools/visibility.h"
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#ifndef MAGNUM_TARGET_WEBGL
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namespace Magnum { namespace DebugTools {
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namespace Implementation {
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MAGNUM_DEBUGTOOLS_EXPORT void bufferSubData(Buffer& buffer, GLintptr offset, GLsizeiptr size, void* output);
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}
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/**
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@brief Buffer subdata
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Emulates @ref Buffer::subData() call on platforms that don't support it (such
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as OpenGL ES) by using @ref Buffer::map().
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@requires_gles30 Extension @es_extension{EXT,map_buffer_range} in OpenGL ES
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2.0.
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@requires_gles Buffer mapping is not available in WebGL.
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*/
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template<class T> Containers::Array<T> inline bufferSubData(Buffer& buffer, GLintptr offset, GLsizeiptr size) {
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Containers::Array<T> data{std::size_t(size)};
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if(size) Implementation::bufferSubData(buffer, offset, size*sizeof(T), data);
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return data;
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}
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/**
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@brief Buffer data
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Emulates @ref Buffer::data() call on platforms that don't support it (such as
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OpenGL ES) by using @ref Buffer::map().
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@requires_gles30 Extension @es_extension{EXT,map_buffer_range} in OpenGL ES
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2.0.
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@requires_gles Buffer mapping is not available in WebGL.
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*/
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template<class T = char> Containers::Array<T> inline bufferData(Buffer& buffer) {
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const Int bufferSize = buffer.size();
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CORRADE_ASSERT(bufferSize%sizeof(T) == 0, "Buffer::data(): the buffer size is" << bufferSize << "bytes, which can't be expressed as array of types with size" << sizeof(T), nullptr);
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return bufferSubData<T>(buffer, 0, bufferSize/sizeof(T));
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}
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}}
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#else
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#error this header is not available in WebGL build
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#endif
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#endif
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