diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/VertexAttribute.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libGLESv2/VertexAttribute.cpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/VertexAttribute.cpp b/src/3rdparty/angle/src/libGLESv2/VertexAttribute.cpp new file mode 100644 index 0000000000..7d011ef758 --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/VertexAttribute.cpp @@ -0,0 +1,56 @@ +#include "precompiled.h" +// +// Copyright 2014 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. +// +// Implementation of the state class for mananging GLES 3 Vertex Array Objects. +// + +#include "libGLESv2/VertexAttribute.h" + +namespace gl +{ + +VertexAttribute::VertexAttribute() + : enabled(false), + type(GL_FLOAT), + size(4), + normalized(false), + pureInteger(false), + stride(0), + pointer(NULL), + divisor(0) +{ +} + +size_t ComputeVertexAttributeTypeSize(const VertexAttribute& attrib) +{ + GLuint size = attrib.size; + switch (attrib.type) + { + case GL_BYTE: return size * sizeof(GLbyte); + case GL_UNSIGNED_BYTE: return size * sizeof(GLubyte); + case GL_SHORT: return size * sizeof(GLshort); + case GL_UNSIGNED_SHORT: return size * sizeof(GLushort); + case GL_INT: return size * sizeof(GLint); + case GL_UNSIGNED_INT: return size * sizeof(GLuint); + case GL_INT_2_10_10_10_REV: return 4; + case GL_UNSIGNED_INT_2_10_10_10_REV: return 4; + case GL_FIXED: return size * sizeof(GLfixed); + case GL_HALF_FLOAT: return size * sizeof(GLhalf); + case GL_FLOAT: return size * sizeof(GLfloat); + default: UNREACHABLE(); return size * sizeof(GLfloat); + } +} + +size_t ComputeVertexAttributeStride(const VertexAttribute& attrib) +{ + if (!attrib.enabled) + { + return 16; + } + return attrib.stride ? attrib.stride : ComputeVertexAttributeTypeSize(attrib); +} + +}
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