blob: 5095079ab6757cd72c7007d309e86da85bf4fc3e [file] [log] [blame]
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gl/GrGLInterface.h"
#include "../GrTDArray.h"
GrGLvoid GR_GL_FUNCTION_TYPE nullGLActiveTexture(GrGLenum texture) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLAttachShader(GrGLuint program, GrGLuint shader) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBeginQuery(GrGLenum target, GrGLuint id) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBindAttribLocation(GrGLuint program, GrGLuint index, const char* name) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBindTexture(GrGLenum target, GrGLuint texture) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBlendColor(GrGLclampf red, GrGLclampf green, GrGLclampf blue, GrGLclampf alpha) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBindFragDataLocation(GrGLuint program, GrGLuint colorNumber, const GrGLchar* name) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBlendFunc(GrGLenum sfactor, GrGLenum dfactor) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBufferData(GrGLenum target, GrGLsizeiptr size, const GrGLvoid* data, GrGLenum usage) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBufferSubData(GrGLenum target, GrGLintptr offset, GrGLsizeiptr size, const GrGLvoid* data) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLClear(GrGLbitfield mask) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLClearColor(GrGLclampf red, GrGLclampf green, GrGLclampf blue, GrGLclampf alpha) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLClearStencil(GrGLint s) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLColorMask(GrGLboolean red, GrGLboolean green, GrGLboolean blue, GrGLboolean alpha) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLCompileShader(GrGLuint shader) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLCompressedTexImage2D(GrGLenum target, GrGLint level, GrGLenum internalformat, GrGLsizei width, GrGLsizei height, GrGLint border, GrGLsizei imageSize, const GrGLvoid* data) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLCullFace(GrGLenum mode) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDepthMask(GrGLboolean flag) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDisable(GrGLenum cap) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDisableVertexAttribArray(GrGLuint index) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDrawArrays(GrGLenum mode, GrGLint first, GrGLsizei count) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDrawBuffer(GrGLenum mode) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDrawBuffers(GrGLsizei n, const GrGLenum* bufs) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDrawElements(GrGLenum mode, GrGLsizei count, GrGLenum type, const GrGLvoid* indices) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLEnable(GrGLenum cap) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLEnableVertexAttribArray(GrGLuint index) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLEndQuery(GrGLenum target) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLFinish() {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLFlush() {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLFrontFace(GrGLenum mode) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLLineWidth(GrGLfloat width) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLLinkProgram(GrGLuint program) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLPixelStorei(GrGLenum pname, GrGLint param) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLQueryCounter(GrGLuint id, GrGLenum target) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLReadBuffer(GrGLenum src) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLReadPixels(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height, GrGLenum format, GrGLenum type, GrGLvoid* pixels) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLScissor(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLShaderSource(GrGLuint shader, GrGLsizei count, const char** str, const GrGLint* length) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLStencilFunc(GrGLenum func, GrGLint ref, GrGLuint mask) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLStencilFuncSeparate(GrGLenum face, GrGLenum func, GrGLint ref, GrGLuint mask) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLStencilMask(GrGLuint mask) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLStencilMaskSeparate(GrGLenum face, GrGLuint mask) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLStencilOp(GrGLenum fail, GrGLenum zfail, GrGLenum zpass) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLStencilOpSeparate(GrGLenum face, GrGLenum fail, GrGLenum zfail, GrGLenum zpass) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLTexImage2D(GrGLenum target, GrGLint level, GrGLint internalformat, GrGLsizei width, GrGLsizei height, GrGLint border, GrGLenum format, GrGLenum type, const GrGLvoid* pixels) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLTexParameteri(GrGLenum target, GrGLenum pname, GrGLint param) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLTexStorage2D(GrGLenum target, GrGLsizei levels, GrGLenum internalformat, GrGLsizei width, GrGLsizei height) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLTexSubImage2D(GrGLenum target, GrGLint level, GrGLint xoffset, GrGLint yoffset, GrGLsizei width, GrGLsizei height, GrGLenum format, GrGLenum type, const GrGLvoid* pixels) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform1f(GrGLint location, GrGLfloat v0) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform1i(GrGLint location, GrGLint v0) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform1fv(GrGLint location, GrGLsizei count, const GrGLfloat* v) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform1iv(GrGLint location, GrGLsizei count, const GrGLint* v) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform2f(GrGLint location, GrGLfloat v0, GrGLfloat v1) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform2i(GrGLint location, GrGLint v0, GrGLint v1) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform2fv(GrGLint location, GrGLsizei count, const GrGLfloat* v) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform2iv(GrGLint location, GrGLsizei count, const GrGLint* v) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform3f(GrGLint location, GrGLfloat v0, GrGLfloat v1, GrGLfloat v2) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform3i(GrGLint location, GrGLint v0, GrGLint v1, GrGLint v2) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform3fv(GrGLint location, GrGLsizei count, const GrGLfloat* v) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform3iv(GrGLint location, GrGLsizei count, const GrGLint* v) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform4f(GrGLint location, GrGLfloat v0, GrGLfloat v1, GrGLfloat v2, GrGLfloat v3) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform4i(GrGLint location, GrGLint v0, GrGLint v1, GrGLint v2, GrGLint v3) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform4fv(GrGLint location, GrGLsizei count, const GrGLfloat* v) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniform4iv(GrGLint location, GrGLsizei count, const GrGLint* v) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniformMatrix2fv(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniformMatrix3fv(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUniformMatrix4fv(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLUseProgram(GrGLuint program) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLVertexAttrib4fv(GrGLuint indx, const GrGLfloat* values) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLVertexAttribPointer(GrGLuint indx, GrGLint size, GrGLenum type, GrGLboolean normalized, GrGLsizei stride, const GrGLvoid* ptr) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLViewport(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBindFramebuffer(GrGLenum target, GrGLuint framebuffer) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBindRenderbuffer(GrGLenum target, GrGLuint renderbuffer) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDeleteFramebuffers(GrGLsizei n, const GrGLuint *framebuffers) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDeleteRenderbuffers(GrGLsizei n, const GrGLuint *renderbuffers) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLFramebufferRenderbuffer(GrGLenum target, GrGLenum attachment, GrGLenum renderbuffertarget, GrGLuint renderbuffer) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLFramebufferTexture2D(GrGLenum target, GrGLenum attachment, GrGLenum textarget, GrGLuint texture, GrGLint level) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetFramebufferAttachmentParameteriv(GrGLenum target, GrGLenum attachment, GrGLenum pname, GrGLint* params) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetRenderbufferParameteriv(GrGLenum target, GrGLenum pname, GrGLint* params) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLRenderbufferStorage(GrGLenum target, GrGLenum internalformat, GrGLsizei width, GrGLsizei height) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLRenderbufferStorageMultisample(GrGLenum target, GrGLsizei samples, GrGLenum internalformat, GrGLsizei width, GrGLsizei height) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBlitFramebuffer(GrGLint srcX0, GrGLint srcY0, GrGLint srcX1, GrGLint srcY1, GrGLint dstX0, GrGLint dstY0, GrGLint dstX1, GrGLint dstY1, GrGLbitfield mask, GrGLenum filter) {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLResolveMultisampleFramebuffer() {}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBindFragDataLocationIndexed(GrGLuint program, GrGLuint colorNumber, GrGLuint index, const GrGLchar * name) {}
GrGLenum GR_GL_FUNCTION_TYPE nullGLCheckFramebufferStatus(GrGLenum target) {
return GR_GL_FRAMEBUFFER_COMPLETE;
}
GrGLuint GR_GL_FUNCTION_TYPE nullGLCreateProgram() {
static int gCurrID = 0;
return ++gCurrID;
}
GrGLuint GR_GL_FUNCTION_TYPE nullGLCreateShader(GrGLenum type) {
static int gCurrID = 0;
return ++gCurrID;
}
// same delete used for shaders and programs
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDelete(GrGLuint program) {
}
// same function used for all glGen*(GLsize i, GLuint*) functions
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGenIds(GrGLsizei n, GrGLuint* ids) {
static int gCurrID = 0;
for (int i = 0; i < n; ++i) {
ids[i] = ++gCurrID;
}
}
// same delete function for all glDelete*(GLsize i, const GLuint*) except buffers
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDeleteIds(GrGLsizei n, const GrGLuint* ids) {}
// In debug builds we do asserts that ensure we agree with GL about when a buffer
// is mapped.
static GrTDArray<GrGLuint> gMappedBuffers;
static GrGLuint gCurrArrayBuffer;
static GrGLuint gCurrElementArrayBuffer;
GrGLvoid GR_GL_FUNCTION_TYPE nullGLBindBuffer(GrGLenum target, GrGLuint buffer) {
switch (target) {
case GR_GL_ARRAY_BUFFER:
gCurrArrayBuffer = buffer;
break;
case GR_GL_ELEMENT_ARRAY_BUFFER:
gCurrElementArrayBuffer = buffer;
break;
}
}
// deleting a bound buffer has the side effect of binding 0
GrGLvoid GR_GL_FUNCTION_TYPE nullGLDeleteBuffers(GrGLsizei n, const GrGLuint* ids) {
for (int i = 0; i < n; ++i) {
if (ids[i] == gCurrArrayBuffer) {
gCurrArrayBuffer = 0;
}
if (ids[i] == gCurrElementArrayBuffer) {
gCurrElementArrayBuffer = 0;
}
for (int j = 0; j < gMappedBuffers.count(); ++j) {
if (gMappedBuffers[j] == ids[i]) {
gMappedBuffers.remove(j);
// don't break b/c we didn't check for dupes on insert
--j;
}
}
}
}
GrGLvoid* GR_GL_FUNCTION_TYPE nullGLMapBuffer(GrGLenum target, GrGLenum access) {
// We just reserve 32MB of RAM for all locks and hope its big enough
static SkAutoMalloc gBufferData(32 * (1 << 20));
GrGLuint buf = 0;
switch (target) {
case GR_GL_ARRAY_BUFFER:
buf = gCurrArrayBuffer;
break;
case GR_GL_ELEMENT_ARRAY_BUFFER:
buf = gCurrElementArrayBuffer;
break;
}
if (buf) {
*gMappedBuffers.append() = buf;
}
return gBufferData.get();
}
GrGLboolean GR_GL_FUNCTION_TYPE nullGLUnmapBuffer(GrGLenum target) {
GrGLuint buf = 0;
switch (target) {
case GR_GL_ARRAY_BUFFER:
buf = gCurrArrayBuffer;
break;
case GR_GL_ELEMENT_ARRAY_BUFFER:
buf = gCurrElementArrayBuffer;
break;
}
if (buf) {
for (int i = 0; i < gMappedBuffers.count(); ++i) {
if (gMappedBuffers[i] == buf) {
gMappedBuffers.remove(i);
// don't break b/c we didn't check for dupes on insert
--i;
}
}
}
return GR_GL_TRUE;
}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetBufferParameteriv(GrGLenum target, GrGLenum pname, GrGLint* params) {
switch (pname) {
case GR_GL_BUFFER_MAPPED: {
*params = GR_GL_FALSE;
GrGLuint buf = 0;
switch (target) {
case GR_GL_ARRAY_BUFFER:
buf = gCurrArrayBuffer;
break;
case GR_GL_ELEMENT_ARRAY_BUFFER:
buf = gCurrElementArrayBuffer;
break;
}
if (buf) {
for (int i = 0; i < gMappedBuffers.count(); ++i) {
if (gMappedBuffers[i] == buf) {
*params = GR_GL_TRUE;
break;
}
}
}
break; }
default:
GrCrash("Unexpected pname to GetBufferParamateriv");
break;
}
};
GrGLenum GR_GL_FUNCTION_TYPE nullGLGetError() {
return GR_GL_NO_ERROR;
}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetIntegerv(GrGLenum pname, GrGLint* params) {
switch (pname) {
case GR_GL_STENCIL_BITS:
*params = 8;
break;
case GR_GL_SAMPLES:
*params = 1;
break;
case GR_GL_FRAMEBUFFER_BINDING:
*params = 0;
break;
case GR_GL_VIEWPORT:
params[0] = 0;
params[1] = 0;
params[2] = 800;
params[3] = 600;
break;
case GR_GL_MAX_TEXTURE_IMAGE_UNITS:
*params = 8;
break;
case GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS:
*params = 16;
break;
case GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS:
*params = 16 * 4;
break;
case GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS:
*params = 0;
break;
case GR_GL_COMPRESSED_TEXTURE_FORMATS:
break;
case GR_GL_MAX_TEXTURE_SIZE:
*params = 8192;
break;
case GR_GL_MAX_RENDERBUFFER_SIZE:
*params = 8192;
break;
case GR_GL_MAX_SAMPLES:
*params = 32;
break;
case GR_GL_MAX_VERTEX_ATTRIBS:
*params = 16;
break;
case GR_GL_MAX_TEXTURE_UNITS:
*params = 8;
break;
default:
GrCrash("Unexpected pname to GetIntegerv");
}
}
// used for both the program and shader info logs
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetInfoLog(GrGLuint program, GrGLsizei bufsize, GrGLsizei* length, char* infolog) {
if (length) {
*length = 0;
}
if (bufsize > 0) {
*infolog = 0;
}
}
// used for both the program and shader params
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetShaderOrProgramiv(GrGLuint program, GrGLenum pname, GrGLint* params) {
switch (pname) {
case GR_GL_LINK_STATUS: // fallthru
case GR_GL_COMPILE_STATUS:
*params = GR_GL_TRUE;
break;
case GR_GL_INFO_LOG_LENGTH:
*params = 0;
break;
// we don't expect any other pnames
default:
GrCrash("Unexpected pname to GetProgramiv");
break;
}
}
namespace {
template <typename T>
void query_result(GrGLenum GLtarget, GrGLenum pname, T *params) {
switch (pname) {
case GR_GL_QUERY_RESULT_AVAILABLE:
*params = GR_GL_TRUE;
break;
case GR_GL_QUERY_RESULT:
*params = 0;
break;
default:
GrCrash("Unexpected pname passed to GetQueryObject.");
break;
}
}
}
// Queries on the null GL just don't do anything at all. We could potentially make
// the timers work.
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetQueryiv(GrGLenum GLtarget, GrGLenum pname, GrGLint *params) {
switch (pname) {
case GR_GL_CURRENT_QUERY:
*params = 0;
break;
case GR_GL_QUERY_COUNTER_BITS:
*params = 32;
break;
default:
GrCrash("Unexpected pname passed GetQueryiv.");
}
}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetQueryObjecti64v(GrGLuint id, GrGLenum pname, GrGLint64 *params) {
query_result(id, pname, params);
}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetQueryObjectiv(GrGLuint id, GrGLenum pname, GrGLint *params) {
query_result(id, pname, params);
}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetQueryObjectui64v(GrGLuint id, GrGLenum pname, GrGLuint64 *params) {
query_result(id, pname, params);
}
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetQueryObjectuiv(GrGLuint id, GrGLenum pname, GrGLuint *params) {
query_result(id, pname, params);
}
const GrGLubyte* GR_GL_FUNCTION_TYPE nullGLGetString(GrGLenum name) {
switch (name) {
case GR_GL_EXTENSIONS:
return (const GrGLubyte*)"GL_ARB_framebuffer_object GL_ARB_blend_func_extended GL_ARB_timer_query GL_ARB_draw_buffers GL_ARB_occlusion_query GL_EXT_blend_color GL_EXT_stencil_wrap";
case GR_GL_VERSION:
return (const GrGLubyte*)"4.0 Null GL";
case GR_GL_SHADING_LANGUAGE_VERSION:
return (const GrGLubyte*)"4.20.8 Null GLSL";
default:
GrCrash("Unexpected name to GetString");
return NULL;
}
}
// we used to use this to query stuff about externally created textures, now we just
// require clients to tell us everything about the texture.
GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetTexLevelParameteriv(GrGLenum target, GrGLint level, GrGLenum pname, GrGLint* params) {
GrCrash("Should never query texture parameters.");
}
GrGLint GR_GL_FUNCTION_TYPE nullGLGetUniformLocation(GrGLuint program, const char* name) {
static int gUniLocation = 0;
return ++gUniLocation;
}
const GrGLInterface* GrGLCreateNullInterface() {
// The gl functions are not context-specific so we create one global
// interface
static SkAutoTUnref<GrGLInterface> glInterface;
if (!glInterface.get()) {
GrGLInterface* interface = new GrGLInterface;
glInterface.reset(interface);
interface->fBindingsExported = kDesktop_GrGLBinding;
interface->fActiveTexture = nullGLActiveTexture;
interface->fAttachShader = nullGLAttachShader;
interface->fBeginQuery = nullGLBeginQuery;
interface->fBindAttribLocation = nullGLBindAttribLocation;
interface->fBindBuffer = nullGLBindBuffer;
interface->fBindFragDataLocation = nullGLBindFragDataLocation;
interface->fBindTexture = nullGLBindTexture;
interface->fBlendColor = nullGLBlendColor;
interface->fBlendFunc = nullGLBlendFunc;
interface->fBufferData = nullGLBufferData;
interface->fBufferSubData = nullGLBufferSubData;
interface->fClear = nullGLClear;
interface->fClearColor = nullGLClearColor;
interface->fClearStencil = nullGLClearStencil;
interface->fColorMask = nullGLColorMask;
interface->fCompileShader = nullGLCompileShader;
interface->fCompressedTexImage2D = nullGLCompressedTexImage2D;
interface->fCreateProgram = nullGLCreateProgram;
interface->fCreateShader = nullGLCreateShader;
interface->fCullFace = nullGLCullFace;
interface->fDeleteBuffers = nullGLDeleteBuffers;
interface->fDeleteProgram = nullGLDelete;
interface->fDeleteQueries = nullGLDeleteIds;
interface->fDeleteShader = nullGLDelete;
interface->fDeleteTextures = nullGLDeleteIds;
interface->fDepthMask = nullGLDepthMask;
interface->fDisable = nullGLDisable;
interface->fDisableVertexAttribArray = nullGLDisableVertexAttribArray;
interface->fDrawArrays = nullGLDrawArrays;
interface->fDrawBuffer = nullGLDrawBuffer;
interface->fDrawBuffers = nullGLDrawBuffers;
interface->fDrawElements = nullGLDrawElements;
interface->fEnable = nullGLEnable;
interface->fEnableVertexAttribArray = nullGLEnableVertexAttribArray;
interface->fEndQuery = nullGLEndQuery;
interface->fFinish = nullGLFinish;
interface->fFlush = nullGLFlush;
interface->fFrontFace = nullGLFrontFace;
interface->fGenBuffers = nullGLGenIds;
interface->fGenQueries = nullGLGenIds;
interface->fGenTextures = nullGLGenIds;
interface->fGetBufferParameteriv = nullGLGetBufferParameteriv;
interface->fGetError = nullGLGetError;
interface->fGetIntegerv = nullGLGetIntegerv;
interface->fGetQueryObjecti64v = nullGLGetQueryObjecti64v;
interface->fGetQueryObjectiv = nullGLGetQueryObjectiv;
interface->fGetQueryObjectui64v = nullGLGetQueryObjectui64v;
interface->fGetQueryObjectuiv = nullGLGetQueryObjectuiv;
interface->fGetQueryiv = nullGLGetQueryiv;
interface->fGetProgramInfoLog = nullGLGetInfoLog;
interface->fGetProgramiv = nullGLGetShaderOrProgramiv;
interface->fGetShaderInfoLog = nullGLGetInfoLog;
interface->fGetShaderiv = nullGLGetShaderOrProgramiv;
interface->fGetString = nullGLGetString;
interface->fGetTexLevelParameteriv = nullGLGetTexLevelParameteriv;
interface->fGetUniformLocation = nullGLGetUniformLocation;
interface->fLineWidth = nullGLLineWidth;
interface->fLinkProgram = nullGLLinkProgram;
interface->fPixelStorei = nullGLPixelStorei;
interface->fQueryCounter = nullGLQueryCounter;
interface->fReadBuffer = nullGLReadBuffer;
interface->fReadPixels = nullGLReadPixels;
interface->fScissor = nullGLScissor;
interface->fShaderSource = nullGLShaderSource;
interface->fStencilFunc = nullGLStencilFunc;
interface->fStencilFuncSeparate = nullGLStencilFuncSeparate;
interface->fStencilMask = nullGLStencilMask;
interface->fStencilMaskSeparate = nullGLStencilMaskSeparate;
interface->fStencilOp = nullGLStencilOp;
interface->fStencilOpSeparate = nullGLStencilOpSeparate;
interface->fTexImage2D = nullGLTexImage2D;
interface->fTexParameteri = nullGLTexParameteri;
interface->fTexSubImage2D = nullGLTexSubImage2D;
interface->fTexStorage2D = nullGLTexStorage2D;
interface->fUniform1f = nullGLUniform1f;
interface->fUniform1i = nullGLUniform1i;
interface->fUniform1fv = nullGLUniform1fv;
interface->fUniform1iv = nullGLUniform1iv;
interface->fUniform2f = nullGLUniform2f;
interface->fUniform2i = nullGLUniform2i;
interface->fUniform2fv = nullGLUniform2fv;
interface->fUniform2iv = nullGLUniform2iv;
interface->fUniform3f = nullGLUniform3f;
interface->fUniform3i = nullGLUniform3i;
interface->fUniform3fv = nullGLUniform3fv;
interface->fUniform3iv = nullGLUniform3iv;
interface->fUniform4f = nullGLUniform4f;
interface->fUniform4i = nullGLUniform4i;
interface->fUniform4fv = nullGLUniform4fv;
interface->fUniform4iv = nullGLUniform4iv;
interface->fUniformMatrix2fv = nullGLUniformMatrix2fv;
interface->fUniformMatrix3fv = nullGLUniformMatrix3fv;
interface->fUniformMatrix4fv = nullGLUniformMatrix4fv;
interface->fUseProgram = nullGLUseProgram;
interface->fVertexAttrib4fv = nullGLVertexAttrib4fv;
interface->fVertexAttribPointer = nullGLVertexAttribPointer;
interface->fViewport = nullGLViewport;
interface->fBindFramebuffer = nullGLBindFramebuffer;
interface->fBindRenderbuffer = nullGLBindRenderbuffer;
interface->fCheckFramebufferStatus = nullGLCheckFramebufferStatus;
interface->fDeleteFramebuffers = nullGLDeleteFramebuffers;
interface->fDeleteRenderbuffers = nullGLDeleteRenderbuffers;
interface->fFramebufferRenderbuffer = nullGLFramebufferRenderbuffer;
interface->fFramebufferTexture2D = nullGLFramebufferTexture2D;
interface->fGenFramebuffers = nullGLGenIds;
interface->fGenRenderbuffers = nullGLGenIds;
interface->fGetFramebufferAttachmentParameteriv = nullGLGetFramebufferAttachmentParameteriv;
interface->fGetRenderbufferParameteriv = nullGLGetRenderbufferParameteriv;
interface->fRenderbufferStorage = nullGLRenderbufferStorage;
interface->fRenderbufferStorageMultisample = nullGLRenderbufferStorageMultisample;
interface->fBlitFramebuffer = nullGLBlitFramebuffer;
interface->fResolveMultisampleFramebuffer = nullGLResolveMultisampleFramebuffer;
interface->fMapBuffer = nullGLMapBuffer;
interface->fUnmapBuffer = nullGLUnmapBuffer;
interface->fBindFragDataLocationIndexed = nullGLBindFragDataLocationIndexed;
}
glInterface.get()->ref();
return glInterface.get();
}