127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
/*
|
|
* Copyright (C) 2018 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*
|
|
*/
|
|
|
|
#include <cstdint>
|
|
#include <memory>
|
|
#include "runtime/os_interface/windows/windows_wrapper.h"
|
|
#include "runtime/sharings/gl/gl_arb_sync_event.h"
|
|
#include "runtime/sharings/gl/gl_sharing.h"
|
|
|
|
namespace Os {
|
|
extern const char *openglDllName;
|
|
}
|
|
|
|
namespace OCLRT {
|
|
|
|
GLboolean GLSharingFunctions::makeCurrent(GLContext contextHandle, GLDisplay displayHandle) {
|
|
if (displayHandle == 0) {
|
|
displayHandle = GLHDCHandle;
|
|
}
|
|
return this->wglMakeCurrent(displayHandle, contextHandle);
|
|
}
|
|
|
|
GLSharingFunctions::~GLSharingFunctions() {
|
|
if (pfnWglDeleteContext) {
|
|
pfnWglDeleteContext(GLHGLRCHandleBkpCtx);
|
|
}
|
|
}
|
|
|
|
GLboolean GLSharingFunctions::initGLFunctions() {
|
|
glLibrary.reset(OsLibrary::load(Os::openglDllName));
|
|
if (glLibrary->isLoaded()) {
|
|
GLGetCurrentContext = (*glLibrary)["wglGetCurrentContext"];
|
|
GLGetCurrentDisplay = (*glLibrary)["wglGetCurrentDC"];
|
|
glGetString = (*glLibrary)["glGetString"];
|
|
glGetIntegerv = (*glLibrary)["glGetIntegerv"];
|
|
pfnWglCreateContext = (*glLibrary)["wglCreateContext"];
|
|
pfnWglDeleteContext = (*glLibrary)["wglDeleteContext"];
|
|
pfnWglShareLists = (*glLibrary)["wglShareLists"];
|
|
GLSetSharedOCLContextState = (*glLibrary)["wglSetSharedOCLContextStateINTEL"];
|
|
GLAcquireSharedBuffer = (*glLibrary)["wglAcquireSharedBufferINTEL"];
|
|
GLReleaseSharedBuffer = (*glLibrary)["wglReleaseSharedBufferINTEL"];
|
|
GLAcquireSharedRenderBuffer = (*glLibrary)["wglAcquireSharedRenderBufferINTEL"];
|
|
GLReleaseSharedRenderBuffer = (*glLibrary)["wglReleaseSharedRenderBufferINTEL"];
|
|
GLAcquireSharedTexture = (*glLibrary)["wglAcquireSharedTextureINTEL"];
|
|
GLReleaseSharedTexture = (*glLibrary)["wglReleaseSharedTextureINTEL"];
|
|
GLRetainSync = (*glLibrary)["wglRetainSyncINTEL"];
|
|
GLReleaseSync = (*glLibrary)["wglReleaseSyncINTEL"];
|
|
GLGetSynciv = (*glLibrary)["wglGetSyncivINTEL"];
|
|
glGetStringi = (*glLibrary)["glGetStringi"];
|
|
this->wglMakeCurrent = (*glLibrary)["wglMakeCurrent"];
|
|
}
|
|
this->pfnGlArbSyncObjectCleanup = cleanupArbSyncObject;
|
|
this->pfnGlArbSyncObjectSetup = setupArbSyncObject;
|
|
this->pfnGlArbSyncObjectSignal = signalArbSyncObject;
|
|
this->pfnGlArbSyncObjectWaitServer = serverWaitForArbSyncObject;
|
|
|
|
return 1;
|
|
}
|
|
|
|
bool GLSharingFunctions::isGlSharingEnabled() {
|
|
static bool oglLibAvailable = std::unique_ptr<OsLibrary>(OsLibrary::load(Os::openglDllName)).get() != nullptr;
|
|
return oglLibAvailable;
|
|
}
|
|
|
|
bool GLSharingFunctions::isOpenGlExtensionSupported(const char *pExtensionString) {
|
|
bool LoadedNull = (glGetStringi == nullptr) || (glGetIntegerv == nullptr);
|
|
if (LoadedNull) {
|
|
return false;
|
|
}
|
|
|
|
cl_int NumberOfExtensions = 0;
|
|
glGetIntegerv(GL_NUM_EXTENSIONS, &NumberOfExtensions);
|
|
for (cl_int i = 0; i < NumberOfExtensions; i++) {
|
|
const char *pString = reinterpret_cast<const char *>(glGetStringi(GL_EXTENSIONS, i));
|
|
if (strcmp(pString, pExtensionString) == 0) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GLSharingFunctions::isOpenGlSharingSupported() {
|
|
|
|
const char *Vendor = reinterpret_cast<const char *>(glGetString(GL_VENDOR));
|
|
if ((Vendor == NULL) || (strcmp(Vendor, "Intel") != 0)) {
|
|
return false;
|
|
}
|
|
|
|
const char *Version = reinterpret_cast<const char *>(glGetString(GL_VERSION));
|
|
if (Version == NULL) {
|
|
return false;
|
|
}
|
|
|
|
bool IsOpenGLES = false;
|
|
if (strstr(Version, "OpenGL ES") != NULL) {
|
|
IsOpenGLES = true;
|
|
}
|
|
|
|
if (IsOpenGLES == true) {
|
|
if (strstr(Version, "OpenGL ES 1.") != NULL) {
|
|
if (isOpenGlExtensionSupported("GL_OES_framebuffer_object") == false) {
|
|
return false;
|
|
}
|
|
}
|
|
} else {
|
|
if (Version[0] < '3') {
|
|
if (isOpenGlExtensionSupported("GL_EXT_framebuffer_object") == false) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void GLSharingFunctions::createBackupContext() {
|
|
if (pfnWglCreateContext) {
|
|
GLHGLRCHandleBkpCtx = pfnWglCreateContext(GLHDCHandle);
|
|
pfnWglShareLists(GLHGLRCHandle, GLHGLRCHandleBkpCtx);
|
|
}
|
|
}
|
|
} // namespace OCLRT
|