chromium/third_party/angle/src/libANGLE/queryconversions.cpp

//
// 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.
//

// queryconversions.cpp: Implementation of state query cast conversions

#include "libANGLE/queryconversions.h"

#include <vector>

#include "common/utilities.h"
#include "libANGLE/Context.h"

namespace gl
{

namespace
{

GLint64 ExpandFloatToInteger(GLfloat value)
{ … }

template <typename QueryT, typename NativeT>
QueryT CastFromStateValueToInt(GLenum pname, NativeT value)
{ … }

template <typename NativeT, typename QueryT>
NativeT CastQueryValueToInt(GLenum pname, QueryT value)
{ … }

}  // anonymous namespace

GLint CastMaskValue(GLuint value)
{ … }

template <typename QueryT, typename InternalT>
QueryT CastFromGLintStateValue(GLenum pname, InternalT value)
{ … }

template GLfloat CastFromGLintStateValue<GLfloat, GLenum>(GLenum pname, GLenum value);
template GLint CastFromGLintStateValue<GLint, GLenum>(GLenum pname, GLenum value);
template GLint64 CastFromGLintStateValue<GLint64, GLenum>(GLenum pname, GLenum value);
template GLuint CastFromGLintStateValue<GLuint, GLenum>(GLenum pname, GLenum value);
template GLuint CastFromGLintStateValue<GLuint, GLint>(GLenum pname, GLint value);
template GLfloat CastFromGLintStateValue<GLfloat, GLint>(GLenum pname, GLint value);
template GLint CastFromGLintStateValue<GLint, GLint>(GLenum pname, GLint value);
template GLfloat CastFromGLintStateValue<GLfloat, bool>(GLenum pname, bool value);
template GLuint CastFromGLintStateValue<GLuint, bool>(GLenum pname, bool value);
template GLint CastFromGLintStateValue<GLint, bool>(GLenum pname, bool value);
template GLfloat CastFromGLintStateValue<GLfloat, GLfloat>(GLenum pname, GLfloat value);
template GLint CastFromGLintStateValue<GLint, GLfloat>(GLenum pname, GLfloat value);
template GLuint CastFromGLintStateValue<GLuint, GLfloat>(GLenum pname, GLfloat value);

template <typename QueryT, typename NativeT>
QueryT CastFromStateValue(GLenum pname, NativeT value)
{ … }
template GLint CastFromStateValue<GLint, GLint>(GLenum pname, GLint value);
template GLint CastFromStateValue<GLint, GLint64>(GLenum pname, GLint64 value);
template GLint64 CastFromStateValue<GLint64, GLint>(GLenum pname, GLint value);
template GLint64 CastFromStateValue<GLint64, GLint64>(GLenum pname, GLint64 value);
template GLfloat CastFromStateValue<GLfloat, GLint>(GLenum pname, GLint value);
template GLfloat CastFromStateValue<GLfloat, GLuint>(GLenum pname, GLuint value);
template GLfloat CastFromStateValue<GLfloat, GLfloat>(GLenum pname, GLfloat value);
template GLint CastFromStateValue<GLint, GLfloat>(GLenum pname, GLfloat value);
template GLuint CastFromStateValue<GLuint, GLfloat>(GLenum pname, GLfloat value);
template GLuint CastFromStateValue<GLuint, GLint>(GLenum pname, GLint value);
template GLuint CastFromStateValue<GLuint, GLuint>(GLenum pname, GLuint value);
template GLint CastFromStateValue<GLint, GLboolean>(GLenum pname, GLboolean value);
template GLint64 CastFromStateValue<GLint64, GLboolean>(GLenum pname, GLboolean value);
template GLint CastFromStateValue<GLint, GLuint>(GLenum pname, GLuint value);
template GLint64 CastFromStateValue<GLint64, GLuint>(GLenum pname, GLuint value);
template GLuint64 CastFromStateValue<GLuint64, GLuint>(GLenum pname, GLuint value);

template <typename NativeT, typename QueryT>
NativeT CastQueryValueTo(GLenum pname, QueryT value)
{ … }

template GLint CastQueryValueTo<GLint, GLfloat>(GLenum pname, GLfloat value);
template GLboolean CastQueryValueTo<GLboolean, GLint>(GLenum pname, GLint value);
template GLint CastQueryValueTo<GLint, GLint>(GLenum pname, GLint value);
template GLint CastQueryValueTo<GLint, GLuint>(GLenum pname, GLuint value);
template GLfloat CastQueryValueTo<GLfloat, GLint>(GLenum pname, GLint value);
template GLfloat CastQueryValueTo<GLfloat, GLuint>(GLenum pname, GLuint value);
template GLfloat CastQueryValueTo<GLfloat, GLfloat>(GLenum pname, GLfloat value);
template GLuint CastQueryValueTo<GLuint, GLint>(GLenum pname, GLint value);
template GLuint CastQueryValueTo<GLuint, GLuint>(GLenum pname, GLuint value);
template GLuint CastQueryValueTo<GLuint, GLfloat>(GLenum pname, GLfloat value);

template <typename QueryT>
void CastStateValues(const Context *context,
                     GLenum nativeType,
                     GLenum pname,
                     unsigned int numParams,
                     QueryT *outParams)
{ … }

// Explicit template instantiation (how we export template functions in different files)
// The calls below will make CastStateValues successfully link with the GL state query types
// The GL state query API types are: bool, int, uint, float, int64, uint64

template void CastStateValues<GLboolean>(const Context *,
                                         GLenum,
                                         GLenum,
                                         unsigned int,
                                         GLboolean *);
template void CastStateValues<GLint>(const Context *, GLenum, GLenum, unsigned int, GLint *);
template void CastStateValues<GLuint>(const Context *, GLenum, GLenum, unsigned int, GLuint *);
template void CastStateValues<GLfloat>(const Context *, GLenum, GLenum, unsigned int, GLfloat *);
template void CastStateValues<GLint64>(const Context *, GLenum, GLenum, unsigned int, GLint64 *);

template <typename QueryT>
void CastIndexedStateValues(Context *context,
                            GLenum nativeType,
                            GLenum pname,
                            GLuint index,
                            unsigned int numParams,
                            QueryT *outParams)
{ … }

template void CastIndexedStateValues<GLboolean>(Context *,
                                                GLenum,
                                                GLenum,
                                                GLuint index,
                                                unsigned int,
                                                GLboolean *);
template void CastIndexedStateValues<GLint>(Context *,
                                            GLenum,
                                            GLenum,
                                            GLuint index,
                                            unsigned int,
                                            GLint *);
template void CastIndexedStateValues<GLuint>(Context *,
                                             GLenum,
                                             GLenum,
                                             GLuint index,
                                             unsigned int,
                                             GLuint *);
template void CastIndexedStateValues<GLfloat>(Context *,
                                              GLenum,
                                              GLenum,
                                              GLuint index,
                                              unsigned int,
                                              GLfloat *);
template void CastIndexedStateValues<GLint64>(Context *,
                                              GLenum,
                                              GLenum,
                                              GLuint index,
                                              unsigned int,
                                              GLint64 *);
}  // namespace gl