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/*
* XGL
*
* Copyright (C) 2014 LunarG, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <unordered_map>
#include "loader_platform.h"
#include "xgl_dispatch_table_helper.h"
#include "xglLayer.h"
// The following is #included again to catch certain OS-specific functions
// being used:
#include "loader_platform.h"
static std::unordered_map<void *, XGL_LAYER_DISPATCH_TABLE *> tableMap;
static XGL_LAYER_DISPATCH_TABLE * initLayerTable(const XGL_BASE_LAYER_OBJECT *gpuw)
{
XGL_LAYER_DISPATCH_TABLE *pTable;
assert(gpuw);
std::unordered_map<void *, XGL_LAYER_DISPATCH_TABLE *>::const_iterator it = tableMap.find((void *) gpuw);
if (it == tableMap.end())
{
pTable = new XGL_LAYER_DISPATCH_TABLE;
tableMap[(void *) gpuw] = pTable;
} else
{
return it->second;
}
layer_initialize_dispatch_table(pTable, gpuw->pGPA, (XGL_PHYSICAL_GPU) gpuw->nextObject);
return pTable;
}
XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglLayerExtension1(XGL_DEVICE device)
{
printf("In xglLayerExtension1() call w/ device: %p\n", (void*)device);
printf("xglLayerExtension1 returning SUCCESS\n");
return XGL_SUCCESS;
}
XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglGetExtensionSupport(XGL_PHYSICAL_GPU gpu, const char* pExtName)
{
XGL_RESULT result;
XGL_BASE_LAYER_OBJECT* gpuw = (XGL_BASE_LAYER_OBJECT *) gpu;
/* This entrypoint is NOT going to init it's own dispatch table since loader calls here early */
if (!strncmp(pExtName, "xglLayerExtension1", strlen("xglLayerExtension1")))
{
result = XGL_SUCCESS;
} else if (!strncmp(pExtName, "Basic", strlen("Basic")))
{
result = XGL_SUCCESS;
} else if (!tableMap.empty() && (tableMap.find(gpuw) != tableMap.end()))
{
printf("At start of wrapped xglGetExtensionSupport() call w/ gpu: %p\n", (void*)gpu);
XGL_LAYER_DISPATCH_TABLE* pTable = tableMap[gpuw];
result = pTable->GetExtensionSupport((XGL_PHYSICAL_GPU)gpuw->nextObject, pExtName);
printf("Completed wrapped xglGetExtensionSupport() call w/ gpu: %p\n", (void*)gpu);
} else
{
result = XGL_ERROR_INVALID_EXTENSION;
}
return result;
}
XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDevice(XGL_PHYSICAL_GPU gpu, const XGL_DEVICE_CREATE_INFO* pCreateInfo, XGL_DEVICE* pDevice)
{
XGL_BASE_LAYER_OBJECT* gpuw = (XGL_BASE_LAYER_OBJECT *) gpu;
XGL_LAYER_DISPATCH_TABLE* pTable = tableMap[gpuw];
printf("At start of wrapped xglCreateDevice() call w/ gpu: %p\n", (void*)gpu);
XGL_RESULT result = pTable->CreateDevice((XGL_PHYSICAL_GPU)gpuw->nextObject, pCreateInfo, pDevice);
// create a mapping for the device object into the dispatch table
tableMap.emplace(*pDevice, pTable);
printf("Completed wrapped xglCreateDevice() call w/ pDevice, Device %p: %p\n", (void*)pDevice, (void *) *pDevice);
return result;
}
XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglGetFormatInfo(XGL_DEVICE device, XGL_FORMAT format, XGL_FORMAT_INFO_TYPE infoType, size_t* pDataSize, void* pData)
{
XGL_LAYER_DISPATCH_TABLE* pTable = tableMap[device];
printf("At start of wrapped xglGetFormatInfo() call w/ device: %p\n", (void*)device);
XGL_RESULT result = pTable->GetFormatInfo(device, format, infoType, pDataSize, pData);
printf("Completed wrapped xglGetFormatInfo() call w/ device: %p\n", (void*)device);
return result;
}
XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglEnumerateLayers(XGL_PHYSICAL_GPU gpu, size_t maxLayerCount, size_t maxStringSize, size_t* pOutLayerCount, char* const* pOutLayers, void* pReserved)
{
if (gpu != NULL)
{
XGL_BASE_LAYER_OBJECT* gpuw = (XGL_BASE_LAYER_OBJECT *) gpu;
XGL_LAYER_DISPATCH_TABLE* pTable = initLayerTable(gpuw);
printf("At start of wrapped xglEnumerateLayers() call w/ gpu: %p\n", gpu);
XGL_RESULT result = pTable->EnumerateLayers((XGL_PHYSICAL_GPU)gpuw->nextObject, maxLayerCount, maxStringSize, pOutLayerCount, pOutLayers, pReserved);
return result;
} else
{
if (pOutLayerCount == NULL || pOutLayers == NULL || pOutLayers[0] == NULL || pReserved == NULL)
return XGL_ERROR_INVALID_POINTER;
// Example of a layer that is only compatible with Intel's GPUs
XGL_BASE_LAYER_OBJECT* gpuw = (XGL_BASE_LAYER_OBJECT*) pReserved;
xglGetGpuInfoType fpGetGpuInfo;
XGL_PHYSICAL_GPU_PROPERTIES gpuProps;
size_t dataSize = sizeof(XGL_PHYSICAL_GPU_PROPERTIES);
fpGetGpuInfo = (xglGetGpuInfoType) gpuw->pGPA((XGL_PHYSICAL_GPU) gpuw->nextObject, "xglGetGpuInfo");
fpGetGpuInfo((XGL_PHYSICAL_GPU) gpuw->nextObject, XGL_INFO_TYPE_PHYSICAL_GPU_PROPERTIES, &dataSize, &gpuProps);
if (gpuProps.vendorId == 0x8086)
{
*pOutLayerCount = 1;
strncpy((char *) pOutLayers[0], "Basic", maxStringSize);
} else
{
*pOutLayerCount = 0;
}
return XGL_SUCCESS;
}
}
XGL_LAYER_EXPORT void * XGLAPI xglGetProcAddr(XGL_PHYSICAL_GPU gpu, const char* pName)
{
if (gpu == NULL)
return NULL;
initLayerTable((const XGL_BASE_LAYER_OBJECT *) gpu);
if (!strncmp("xglGetProcAddr", pName, sizeof("xglGetProcAddr")))
return (void *) xglGetProcAddr;
else if (!strncmp("xglCreateDevice", pName, sizeof ("xglCreateDevice")))
return (void *) xglCreateDevice;
else if (!strncmp("xglGetExtensionSupport", pName, sizeof ("xglGetExtensionSupport")))
return (void *) xglGetExtensionSupport;
else if (!strncmp("xglEnumerateLayers", pName, sizeof ("xglEnumerateLayers")))
return (void *) xglEnumerateLayers;
else if (!strncmp("xglGetFormatInfo", pName, sizeof ("xglGetFormatInfo")))
return (void *) xglGetFormatInfo;
else if (!strncmp("xglLayerExtension1", pName, sizeof("xglLayerExtension1")))
return (void *) xglLayerExtension1;
else {
XGL_BASE_LAYER_OBJECT* gpuw = (XGL_BASE_LAYER_OBJECT *) gpu;
if (gpuw->pGPA == NULL)
return NULL;
return gpuw->pGPA((XGL_PHYSICAL_GPU) gpuw->nextObject, pName);
}
}
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