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Na das ist ja toll, dass der JETZT rauskommt.
Alter Hase
Wo findet man das SDK, bzw. die Header jetzt eigentlich für Mantle?
Community-Fossil
Alter Hase
Beruf: Softwareentwickler (aktuell Web/Node); Freiberuflicher Google Proxy
Aber gut so, wer will schon vom "Treiberhorror" AMD einen Standard?
Tja dann ist es auch keine brauchbar Preview
Community-Fossil
Ok an die Doku hatte ich nicht gedacht.
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#include "mantle.h" #include <windows.h> #include <cassert> #include <cstdio> #include <malloc.h> struct InitAndLoadMantle { InitAndLoadMantle() { load(); } private: bool load() { HMODULE hModule = LoadLibrary(L"mantle64.dll"); if (!hModule) return false; // .... return true; } }; InitAndLoadMantle GManlteInstance; #define CHECKED_CALL(call) if (call != GR_SUCCESS) assert(false && #call " failed..."); LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch (uMsg) { case WM_CLOSE: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, uMsg, wParam, lParam); } return 0; } HWND createWindow() { HINSTANCE hInst = GetModuleHandle(NULL); WNDCLASS wc = { CS_HREDRAW | CS_VREDRAW, WndProc, 0, 0, hInst, LoadIcon(NULL, IDI_APPLICATION), LoadCursor(NULL, IDC_ARROW), GetSysColorBrush(COLOR_BTNFACE), NULL, L"MantleTestWindow" }; RegisterClass(&wc); HWND hWnd = CreateWindow(L"MantleTestWindow", L"Mantle Test Window", WS_OVERLAPPEDWINDOW, 0, 0, 800, 600, NULL, NULL, hInst, NULL); ShowWindow(hWnd, SW_SHOW); return hWnd; } class ImageStateTransition { public: ImageStateTransition(GR_IMAGE image, GR_IMAGE_SUBRESOURCE_RANGE subResRange, GR_ENUM currentState) { assert(image != GR_NULL_HANDLE && "invalid image"); m_trans.image = image; m_trans.subresourceRange = subResRange; m_trans.oldState = currentState; } void submit(GR_CMD_BUFFER cmdBuffer, GR_ENUM newState) { if (m_trans.oldState == newState) return; m_trans.newState = newState; grCmdPrepareImages(cmdBuffer, 1, &m_trans); m_trans.oldState = m_trans.newState; } private: GR_IMAGE_STATE_TRANSITION m_trans; }; struct FrameBufferInfo { GR_IMAGE backBuffer; GR_GPU_MEMORY backBufferMemory; GR_IMAGE_SUBRESOURCE_RANGE subResourceRange; GR_COLOR_TARGET_VIEW view; }; bool initGraphicsDevice(GR_DEVICE& device) { GR_RESULT result; GR_APPLICATION_INFO appInfo = {}; appInfo.apiVersion = GR_API_VERSION; // get the list of all physically present gpus supporting mantle. for simplicity the first one is used for rendering GR_PHYSICAL_GPU gpus[GR_MAX_PHYSICAL_GPUS] = {}; GR_UINT gpuCount = 0; if (grInitAndEnumerateGpus(&appInfo, NULL, &gpuCount, gpus) != GR_SUCCESS) { return false; } static const GR_CHAR* const ppExtensions[] = { (GR_CHAR*)"GR_WSI_WINDOWS" }; // check first if all needed extensions are supported bool extensionsSupported = true; for (int i = 0; i < _countof(ppExtensions) && extensionsSupported; ++i) { extensionsSupported &= grGetExtensionSupport(gpus[0], ppExtensions[i]) == GR_SUCCESS; } if (!extensionsSupported) return false; // create the device and request a single queue. this is should be save since a universal queue is // always provided. if other queues are used (i.e. async compute) the available queues should be queried first GR_DEVICE_QUEUE_CREATE_INFO queueInfo = {}; queueInfo.queueCount = GR_QUEUE_UNIVERSAL; queueInfo.queueCount = 1; GR_DEVICE_CREATE_INFO deviceInfo = {}; deviceInfo.queueRecordCount = 1; deviceInfo.pRequestedQueues = &queueInfo; deviceInfo.extensionCount = 1; deviceInfo.ppEnabledExtensionNames = ppExtensions; #if defined (DEBUG) || defined (_DEBUG) deviceInfo.maxValidationLevel = GR_VALIDATION_LEVEL_4; deviceInfo.flags |= GR_DEVICE_CREATE_VALIDATION; #else deviceInfo.maxValidationLevel = GR_VALIDATION_LEVEL_0; #endif device = GR_NULL_HANDLE; result = grCreateDevice(gpus[0], &deviceInfo, &device); return (result == GR_SUCCESS); } void initGlobalResources(GR_DEVICE device, HWND hWnd, GR_QUEUE& renderQueue, FrameBufferInfo& frameBufferInfo) { // create the actual image object and allocate memory GR_WSI_WIN_PRESENTABLE_IMAGE_CREATE_INFO backBufferInfo; ::ZeroMemory(&backBufferInfo, sizeof(backBufferInfo)); backBufferInfo.extent.width = 800; backBufferInfo.extent.height = 600; backBufferInfo.format.channelFormat = GR_CH_FMT_R8G8B8A8; backBufferInfo.format.numericFormat = GR_NUM_FMT_SRGB; backBufferInfo.display = GR_NULL_HANDLE; backBufferInfo.usage = GR_IMAGE_USAGE_COLOR_TARGET; CHECKED_CALL(grWsiWinCreatePresentableImage(device, &backBufferInfo, &frameBufferInfo.backBuffer, &frameBufferInfo.backBufferMemory)); // create color target view GR_COLOR_TARGET_VIEW_CREATE_INFO backbufferViewInfo; ::ZeroMemory(&backbufferViewInfo, sizeof(backbufferViewInfo)); backbufferViewInfo.format = backBufferInfo.format; backbufferViewInfo.image = frameBufferInfo.backBuffer; backbufferViewInfo.arraySize = 1; CHECKED_CALL(grCreateColorTargetView(device, &backbufferViewInfo, &frameBufferInfo.view)); // create subresource range for operations on the data ::ZeroMemory(&frameBufferInfo.subResourceRange, sizeof(GR_IMAGE_SUBRESOURCE_RANGE)); frameBufferInfo.subResourceRange.aspect = GR_IMAGE_ASPECT_COLOR; frameBufferInfo.subResourceRange.arraySize = 1; frameBufferInfo.subResourceRange.mipLevels = 1; // create render queues CHECKED_CALL(grGetDeviceQueue(device, GR_QUEUE_UNIVERSAL, 0, &renderQueue)); } void syncWithGPU(GR_DEVICE device, GR_FENCE fence) { // stall until the command buffer execution has been completed... a better solution is to get a new command buffer out of a pool (etc...) if (grGetFenceStatus(fence) == GR_NOT_READY) { do {} while (grWaitForFences(device, 1, &fence, GR_TRUE, 1.0f) != GR_SUCCESS); } } int main() { HWND hWnd = createWindow(); GR_DEVICE device; if (!initGraphicsDevice(device)) { printf("cannot initialize the graphics device\n"); return -1; } GR_QUEUE mainQueue; FrameBufferInfo frameBufferInfo; initGlobalResources(device, hWnd, mainQueue, frameBufferInfo); // create a new command buffer, for this example a single one is sufficient GR_CMD_BUFFER_CREATE_INFO cmdBufferInfo; cmdBufferInfo.queueType = GR_QUEUE_UNIVERSAL; cmdBufferInfo.flags = 0; GR_CMD_BUFFER cmdBuffer; CHECKED_CALL(grCreateCommandBuffer(device, &cmdBufferInfo, &cmdBuffer)); // create fence to sync with the command buffer execution GR_FENCE_CREATE_INFO fenceInfo = {0}; GR_FENCE fence; CHECKED_CALL(grCreateFence(device, &fenceInfo, &fence)); ImageStateTransition transition(frameBufferInfo.backBuffer, frameBufferInfo.subResourceRange, GR_IMAGE_STATE_UNINITIALIZED); GR_FLOAT clearColors[][3] = { {1, 0, 0}, {0, 1, 0}, {0, 0, 1} }; int colorIndex = 0; DWORD time = GetTickCount(); bool exit = false; while (!exit) { MSG msg; while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { if (msg.message == WM_QUIT) { exit = true; break; } TranslateMessage(&msg); DispatchMessage(&msg); } DWORD t = GetTickCount(); if (t - time > 5000.0f) { time = t; colorIndex = (colorIndex + 1) % _countof(clearColors); } // synchronize with command buffer execution syncWithGPU(device, fence); // record command buffer CHECKED_CALL(grBeginCommandBuffer(cmdBuffer, 0)); // clear color, image needs to be in 'clear' state transition.submit(cmdBuffer, GR_IMAGE_STATE_CLEAR); grCmdClearColorImage(cmdBuffer, frameBufferInfo.backBuffer, clearColors[colorIndex], 1, &frameBufferInfo.subResourceRange); // make backbuffer ready for present transition.submit(cmdBuffer, GR_WSI_WIN_IMAGE_STATE_PRESENT_WINDOWED); CHECKED_CALL(grEndCommandBuffer(cmdBuffer)); // submit the command buffer to the queue to let the gpu process it GR_MEMORY_REF memRef; memRef.mem = frameBufferInfo.backBufferMemory; memRef.flags = 0; CHECKED_CALL(grQueueSubmit(mainQueue, 1, &cmdBuffer, 1, &memRef, fence)); // present backbuffer GR_WSI_WIN_PRESENT_INFO presentInfo; presentInfo.hWndDest = hWnd; presentInfo.srcImage = frameBufferInfo.backBuffer; presentInfo.flags = 0; presentInfo.presentMode = GR_WSI_WIN_PRESENT_MODE_WINDOWED; presentInfo.presentInterval = 0; CHECKED_CALL(grWsiWinQueuePresent(mainQueue, &presentInfo)); } // sync with all command queues grDeviceWaitIdle(device); // destroy all created resources grDestroyObject(frameBufferInfo.view); grDestroyObject(cmdBuffer); grDestroyDevice(device); } |
Dieser Beitrag wurde bereits 2 mal editiert, zuletzt von »David_pb« (25.03.2015, 13:27)
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