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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrGLTypes_DEFINED
#define GrGLTypes_DEFINED
#include "GrGLConfig.h"
#include "SkRefCnt.h"
/**
* Classifies GL contexts by which standard they implement (currently as OpenGL vs. OpenGL ES).
*/
enum GrGLStandard {
kNone_GrGLStandard,
kGL_GrGLStandard,
kGLES_GrGLStandard,
};
static const int kGrGLStandardCnt = 3;
///////////////////////////////////////////////////////////////////////////////
/**
* Declares typedefs for all the GL functions used in GrGLInterface
*/
typedef unsigned int GrGLenum;
typedef unsigned char GrGLboolean;
typedef unsigned int GrGLbitfield;
typedef signed char GrGLbyte;
typedef char GrGLchar;
typedef short GrGLshort;
typedef int GrGLint;
typedef int GrGLsizei;
typedef int64_t GrGLint64;
typedef unsigned char GrGLubyte;
typedef unsigned short GrGLushort;
typedef unsigned int GrGLuint;
typedef uint64_t GrGLuint64;
typedef float GrGLfloat;
typedef float GrGLclampf;
typedef double GrGLdouble;
typedef double GrGLclampd;
typedef void GrGLvoid;
#ifndef SK_IGNORE_64BIT_OPENGL_CHANGES
#ifdef _WIN64
typedef signed long long int GrGLintptr;
typedef signed long long int GrGLsizeiptr;
#else
typedef signed long int GrGLintptr;
typedef signed long int GrGLsizeiptr;
#endif
#else
typedef signed long int GrGLintptr;
typedef signed long int GrGLsizeiptr;
#endif
typedef void* GrGLeglImage;
typedef struct __GLsync* GrGLsync;
struct GrGLDrawArraysIndirectCommand {
GrGLuint fCount;
GrGLuint fInstanceCount;
GrGLuint fFirst;
GrGLuint fBaseInstance; // Requires EXT_base_instance on ES.
};
GR_STATIC_ASSERT(16 == sizeof(GrGLDrawArraysIndirectCommand));
struct GrGLDrawElementsIndirectCommand {
GrGLuint fCount;
GrGLuint fInstanceCount;
GrGLuint fFirstIndex;
GrGLuint fBaseVertex;
GrGLuint fBaseInstance; // Requires EXT_base_instance on ES.
};
GR_STATIC_ASSERT(20 == sizeof(GrGLDrawElementsIndirectCommand));
/**
* KHR_debug
*/
typedef void (GR_GL_FUNCTION_TYPE* GRGLDEBUGPROC)(GrGLenum source,
GrGLenum type,
GrGLuint id,
GrGLenum severity,
GrGLsizei length,
const GrGLchar* message,
const void* userParam);
/**
* EGL types.
*/
typedef void* GrEGLImage;
typedef void* GrEGLDisplay;
typedef void* GrEGLContext;
typedef void* GrEGLClientBuffer;
typedef unsigned int GrEGLenum;
typedef int32_t GrEGLint;
typedef unsigned int GrEGLBoolean;
///////////////////////////////////////////////////////////////////////////////
/**
* Types for interacting with GL resources created externally to Skia. GrBackendObjects for GL
* textures are really const GrGLTexture*. The fFormat here should be a sized, internal format
* for the texture. We will try to use the sized format if the GL Context supports it, otherwise
* we will internally fall back to using the base internal formats.
*/
struct GrGLTextureInfo {
GrGLenum fTarget;
GrGLuint fID;
GrGLenum fFormat = 0;
};
GR_STATIC_ASSERT(sizeof(GrBackendObject) >= sizeof(const GrGLTextureInfo*));
struct GrGLFramebufferInfo {
GrGLuint fFBOID;
GrGLenum fFormat = 0;
};
GR_STATIC_ASSERT(sizeof(GrBackendObject) >= sizeof(const GrGLFramebufferInfo*));
#endif
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