blob: bfd05a4da4edaa722ad193172ee7390a96aa4fe5 [file] [log] [blame]
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __GL_UTILS_H__
#define __GL_UTILS_H__
#if PLATFORM_SDK_VERSION < 26
#include <cutils/log.h>
#else
#include <log/log.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef GL_API
#undef GL_API
#endif
#define GL_API
#ifdef GL_APIENTRY
#undef GL_APIENTRY
#endif
#ifdef GL_APIENTRYP
#undef GL_APIENTRYP
#endif
#define GL_APIENTRYP
#ifndef ANDROID
#define GL_APIENTRY
#endif
#include <GLES/gl.h>
#include <GLES/glext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
INDIRECT_COMMAND_DRAWARRAYS = 0,
INDIRECT_COMMAND_DRAWELEMENTS = 1,
} IndirectCommandType;
bool isSamplerType(GLenum type);
bool isIntegerType(GLenum type);
bool isUnsignedIntType(GLenum type);
bool isBoolType(GLenum type);
uint32_t getColumnsOfType(GLenum type);
uint32_t getRowsOfType(GLenum type);
uint32_t getAttributeCountOfType(GLenum type);
size_t glSizeof(GLenum type);
size_t glUtilsParamSize(GLenum param);
void glUtilsPackPointerData(unsigned char *dst, unsigned char *str,
int size, GLenum type, unsigned int stride,
unsigned int datalen);
void glUtilsWritePackPointerData(void* stream, unsigned char *src,
int size, GLenum type, unsigned int stride,
unsigned int datalen);
int glUtilsPixelBitSize(GLenum format, GLenum type);
void glUtilsPackStrings(char *ptr, char **strings, GLint *length, GLsizei count);
int glUtilsCalcShaderSourceLen(char **strings, GLint *length, GLsizei count);
GLenum glUtilsColorAttachmentName(int i);
int glUtilsColorAttachmentIndex(GLenum attachment);
GLuint glUtilsIndirectStructSize(IndirectCommandType cmdType);
bool colorRenderableFormat(GLint internalformat, GLenum texturetype, int majorVersion, int minorVersion, bool hasColorBufferFloatExtension, bool hasColorBufferHalfFloatExtension);
bool depthRenderableFormat(GLint internalformat);
bool stencilRenderableFormat(GLint internalformat);
#ifdef __cplusplus
}
#endif
namespace GLUtils {
template <class T> void minmax(const T *indices, int count, int *min, int *max) {
*min = -1;
*max = -1;
const T *ptr = indices;
for (int i = 0; i < count; i++) {
if (*min == -1 || *ptr < *min) *min = *ptr;
if (*max == -1 || *ptr > *max) *max = *ptr;
ptr++;
}
}
template <class T> void minmaxExcept
(const T *indices, int count, int *min, int *max,
bool shouldExclude, T whatExclude) {
if (!shouldExclude) return minmax(indices, count, min, max);
*min = -1;
*max = -1;
const T *ptr = indices;
for (int i = 0; i < count; i++) {
if (*ptr != whatExclude) {
if (*min == -1 || *ptr < *min) *min = *ptr;
if (*max == -1 || *ptr > *max) *max = *ptr;
}
ptr++;
}
}
template <class T> void shiftIndices(T *indices, int count, int offset) {
T *ptr = indices;
for (int i = 0; i < count; i++) {
*ptr += offset;
ptr++;
}
}
template <class T> void shiftIndices(const T *src, T *dst, int count, int offset)
{
for (int i = 0; i < count; i++) {
*dst = *src + offset;
dst++;
src++;
}
}
template <class T> void shiftIndicesExcept
(T *indices, int count, int offset,
bool shouldExclude, T whatExclude) {
if (!shouldExclude) return shiftIndices(indices, count, offset);
T *ptr = indices;
for (int i = 0; i < count; i++) {
if (*ptr != whatExclude) {
*ptr += offset;
}
ptr++;
}
}
template <class T> void shiftIndicesExcept
(const T *src, T *dst, int count, int offset,
bool shouldExclude, T whatExclude) {
if (!shouldExclude) return shiftIndices(src, dst, count, offset);
for (int i = 0; i < count; i++) {
if (*src == whatExclude) {
*dst = *src;
} else {
*dst = *src + offset;
}
dst++;
src++;
}
}
template<class T> T primitiveRestartIndex() {
return -1;
}
} // namespace GLUtils
#endif