gecko/dom/canvas/WebGLUniformInfo.h
2014-09-19 16:35:54 -07:00

57 lines
1.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef WEBGLUNIFORMINFO_H_
#define WEBGLUNIFORMINFO_H_
#include "GLDefs.h"
#include "angle/ShaderLang.h"
namespace mozilla {
struct WebGLUniformInfo {
uint32_t arraySize;
bool isArray;
sh::GLenum type;
explicit WebGLUniformInfo(uint32_t s = 0, bool a = false, sh::GLenum t = LOCAL_GL_NONE)
: arraySize(s), isArray(a), type(t) {}
int ElementSize() const {
switch (type) {
case LOCAL_GL_INT:
case LOCAL_GL_FLOAT:
case LOCAL_GL_BOOL:
case LOCAL_GL_SAMPLER_2D:
case LOCAL_GL_SAMPLER_CUBE:
return 1;
case LOCAL_GL_INT_VEC2:
case LOCAL_GL_FLOAT_VEC2:
case LOCAL_GL_BOOL_VEC2:
return 2;
case LOCAL_GL_INT_VEC3:
case LOCAL_GL_FLOAT_VEC3:
case LOCAL_GL_BOOL_VEC3:
return 3;
case LOCAL_GL_INT_VEC4:
case LOCAL_GL_FLOAT_VEC4:
case LOCAL_GL_BOOL_VEC4:
case LOCAL_GL_FLOAT_MAT2:
return 4;
case LOCAL_GL_FLOAT_MAT3:
return 9;
case LOCAL_GL_FLOAT_MAT4:
return 16;
default:
MOZ_ASSERT(false); // should never get here
return 0;
}
}
};
} // namespace mozilla
#endif