diff options
Diffstat (limited to 'video/out/gpu/d3d11_helpers.c')
| -rw-r--r-- | video/out/gpu/d3d11_helpers.c | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/video/out/gpu/d3d11_helpers.c b/video/out/gpu/d3d11_helpers.c new file mode 100644 index 0000000000..7912a8c23a --- /dev/null +++ b/video/out/gpu/d3d11_helpers.c @@ -0,0 +1,401 @@ +/* + * This file is part of mpv. + * + * mpv is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * mpv is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with mpv. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <windows.h> +#include <d3d11.h> +#include <dxgi1_2.h> +#include <pthread.h> + +#include "common/common.h" +#include "common/msg.h" +#include "osdep/io.h" +#include "osdep/windows_utils.h" + +#include "d3d11_helpers.h" + +// Windows 8 enum value, not present in mingw-w64 headers +#define DXGI_ADAPTER_FLAG_SOFTWARE (2) + +static pthread_once_t d3d11_once = PTHREAD_ONCE_INIT; +static PFN_D3D11_CREATE_DEVICE pD3D11CreateDevice = NULL; +static void d3d11_load(void) +{ + HMODULE d3d11 = LoadLibraryW(L"d3d11.dll"); + if (!d3d11) + return; + pD3D11CreateDevice = (PFN_D3D11_CREATE_DEVICE) + GetProcAddress(d3d11, "D3D11CreateDevice"); +} + +// Get a const array of D3D_FEATURE_LEVELs from max_fl to min_fl (inclusive) +static int get_feature_levels(int max_fl, int min_fl, + const D3D_FEATURE_LEVEL **out) +{ + static const D3D_FEATURE_LEVEL levels[] = { + D3D_FEATURE_LEVEL_12_1, + D3D_FEATURE_LEVEL_12_0, + D3D_FEATURE_LEVEL_11_1, + D3D_FEATURE_LEVEL_11_0, + D3D_FEATURE_LEVEL_10_1, + D3D_FEATURE_LEVEL_10_0, + D3D_FEATURE_LEVEL_9_3, + D3D_FEATURE_LEVEL_9_2, + D3D_FEATURE_LEVEL_9_1, + }; + static const int levels_len = MP_ARRAY_SIZE(levels); + + int start = 0; + for (; start < levels_len; start++) { + if (levels[start] <= max_fl) + break; + } + int len = 0; + for (; start + len < levels_len; len++) { + if (levels[start + len] < min_fl) + break; + } + *out = &levels[start]; + return len; +} + +static HRESULT create_device(struct mp_log *log, bool warp, bool bgra, + bool debug, int max_fl, int min_fl, + ID3D11Device **dev) +{ + const D3D_FEATURE_LEVEL *levels; + int levels_len = get_feature_levels(max_fl, min_fl, &levels); + if (!levels_len) { + mp_fatal(log, "No suitable Direct3D feature level found\n"); + return E_FAIL; + } + + D3D_DRIVER_TYPE type = warp ? D3D_DRIVER_TYPE_WARP + : D3D_DRIVER_TYPE_HARDWARE; + UINT flags = 0; + if (bgra) + flags |= D3D11_CREATE_DEVICE_BGRA_SUPPORT; + if (debug) + flags |= D3D11_CREATE_DEVICE_DEBUG; + return pD3D11CreateDevice(NULL, type, NULL, flags, levels, levels_len, + D3D11_SDK_VERSION, dev, NULL, NULL); +} + +// Create a Direct3D 11 device for rendering and presentation. This is meant to +// reduce boilerplate in backends that D3D11, while also making sure they share +// the same device creation logic and log the same information. +bool mp_d3d11_create_present_device(struct mp_log *log, + struct d3d11_device_opts *opts, + ID3D11Device **dev_out) +{ + bool warp = opts->force_warp; + bool bgra = true; + int max_fl = opts->max_feature_level; + int min_fl = opts->min_feature_level; + ID3D11Device *dev = NULL; + IDXGIDevice1 *dxgi_dev = NULL; + IDXGIAdapter1 *adapter = NULL; + bool success = false; + HRESULT hr; + + pthread_once(&d3d11_once, d3d11_load); + if (!pD3D11CreateDevice) { + mp_fatal(log, "Failed to load d3d11.dll\n"); + goto done; + } + + // Return here to retry creating the device + do { + // Use these default feature levels if they are not set + max_fl = max_fl ? max_fl : D3D_FEATURE_LEVEL_11_0; + min_fl = min_fl ? min_fl : D3D_FEATURE_LEVEL_9_1; + + hr = create_device(log, warp, bgra, opts->debug, max_fl, min_fl, &dev); + if (SUCCEEDED(hr)) + break; + + // BGRA is recommended, but FL 10_0 hardware may not support it + if (bgra) { + mp_dbg(log, "Failed to create D3D device with BGRA support\n"); + bgra = false; + continue; + } + + // Trying to create a D3D_FEATURE_LEVEL_12_0 device on Windows 8.1 or + // below will not succeed. Try an 11_1 device. + if (max_fl >= D3D_FEATURE_LEVEL_12_0 && + min_fl <= D3D_FEATURE_LEVEL_11_1) + { + mp_dbg(log, "Failed to create 12_0+ device, trying 11_1\n"); + max_fl = D3D_FEATURE_LEVEL_11_1; + bgra = true; + continue; + } + + // Trying to create a D3D_FEATURE_LEVEL_11_1 device on Windows 7 + // without the platform update will not succeed. Try an 11_0 device. + if (max_fl >= D3D_FEATURE_LEVEL_11_1 && + min_fl <= D3D_FEATURE_LEVEL_11_0) + { + mp_dbg(log, "Failed to create 11_1+ device, trying 11_0\n"); + max_fl = D3D_FEATURE_LEVEL_11_0; + bgra = true; + continue; + } + + // Retry with WARP if allowed + if (!warp && opts->allow_warp) { + mp_dbg(log, "Failed to create hardware device, trying WARP\n"); + warp = true; + max_fl = opts->max_feature_level; + min_fl = opts->min_feature_level; + bgra = true; + continue; + } + + mp_fatal(log, "Failed to create Direct3D 11 device: %s\n", + mp_HRESULT_to_str(hr)); + goto done; + } while (true); + + hr = ID3D11Device_QueryInterface(dev, &IID_IDXGIDevice1, (void**)&dxgi_dev); + if (FAILED(hr)) { + mp_fatal(log, "Failed to get DXGI device\n"); + goto done; + } + hr = IDXGIDevice1_GetParent(dxgi_dev, &IID_IDXGIAdapter1, (void**)&adapter); + if (FAILED(hr)) { + mp_fatal(log, "Failed to get DXGI adapter\n"); + goto done; + } + + IDXGIDevice1_SetMaximumFrameLatency(dxgi_dev, opts->max_frame_latency); + + DXGI_ADAPTER_DESC1 desc; + hr = IDXGIAdapter1_GetDesc1(adapter, &desc); + if (FAILED(hr)) { + mp_fatal(log, "Failed to get adapter description\n"); + goto done; + } + + D3D_FEATURE_LEVEL selected_level = ID3D11Device_GetFeatureLevel(dev); + mp_verbose(log, "Using Direct3D 11 feature level %u_%u\n", + ((unsigned)selected_level) >> 12, + (((unsigned)selected_level) >> 8) & 0xf); + + char *dev_name = mp_to_utf8(NULL, desc.Description); + mp_verbose(log, "Device: %s\n" + "VendorId: 0x%04d\n" + "DeviceId: 0x%04d\n" + "LUID: %08lx%08lx\n", + dev_name, desc.VendorId, desc.DeviceId, + desc.AdapterLuid.HighPart, desc.AdapterLuid.LowPart); + talloc_free(dev_name); + + if (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE) + warp = true; + // If the primary display adapter is a software adapter, the + // DXGI_ADAPTER_FLAG_SOFTWARE flag won't be set, but the device IDs should + // still match the Microsoft Basic Render Driver + if (desc.VendorId == 0x1414 && desc.DeviceId == 0x8c) + warp = true; + if (warp) { + mp_msg(log, opts->force_warp ? MSGL_V : MSGL_WARN, + "Using a software adapter\n"); + } + + *dev_out = dev; + dev = NULL; + success = true; + +done: + SAFE_RELEASE(adapter); + SAFE_RELEASE(dxgi_dev); + SAFE_RELEASE(dev); + return success; +} + +static HRESULT create_swapchain_1_2(ID3D11Device *dev, IDXGIFactory2 *factory, + struct mp_log *log, + struct d3d11_swapchain_opts *opts, + bool flip, DXGI_FORMAT format, + IDXGISwapChain **swapchain_out) +{ + IDXGISwapChain *swapchain = NULL; + IDXGISwapChain1 *swapchain1 = NULL; + HRESULT hr; + + DXGI_SWAP_CHAIN_DESC1 desc = { + .Width = opts->width ? opts->width : 1, + .Height = opts->height ? opts->height : 1, + .Format = format, + .SampleDesc = { .Count = 1 }, + .BufferUsage = opts->usage, + }; + + if (flip) { + desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL; + desc.BufferCount = opts->length; + } else { + desc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; + desc.BufferCount = 1; + } + + hr = IDXGIFactory2_CreateSwapChainForHwnd(factory, (IUnknown*)dev, + opts->window, &desc, NULL, NULL, &swapchain1); + if (FAILED(hr)) + goto done; + hr = IDXGISwapChain1_QueryInterface(swapchain1, &IID_IDXGISwapChain, + (void**)&swapchain); + if (FAILED(hr)) + goto done; + + *swapchain_out = swapchain; + swapchain = NULL; + +done: + SAFE_RELEASE(swapchain1); + SAFE_RELEASE(swapchain); + return hr; +} + +static HRESULT create_swapchain_1_1(ID3D11Device *dev, IDXGIFactory1 *factory, + struct mp_log *log, + struct d3d11_swapchain_opts *opts, + DXGI_FORMAT format, + IDXGISwapChain **swapchain_out) +{ + DXGI_SWAP_CHAIN_DESC desc = { + .BufferDesc = { + .Width = opts->width ? opts->width : 1, + .Height = opts->height ? opts->height : 1, + .Format = format, + }, + .SampleDesc = { .Count = 1 }, + .BufferUsage = opts->usage, + .BufferCount = 1, + .OutputWindow = opts->window, + .Windowed = TRUE, + .SwapEffect = DXGI_SWAP_EFFECT_DISCARD, + }; + + return IDXGIFactory1_CreateSwapChain(factory, (IUnknown*)dev, &desc, + swapchain_out); +} + +// Create a Direct3D 11 swapchain +bool mp_d3d11_create_swapchain(ID3D11Device *dev, struct mp_log *log, + struct d3d11_swapchain_opts *opts, + IDXGISwapChain **swapchain_out) +{ + IDXGIDevice1 *dxgi_dev = NULL; + IDXGIAdapter1 *adapter = NULL; + IDXGIFactory1 *factory = NULL; + IDXGIFactory2 *factory2 = NULL; + IDXGISwapChain *swapchain = NULL; + bool success = false; + HRESULT hr; + + hr = ID3D11Device_QueryInterface(dev, &IID_IDXGIDevice1, (void**)&dxgi_dev); + if (FAILED(hr)) { + mp_fatal(log, "Failed to get DXGI device\n"); + goto done; + } + hr = IDXGIDevice1_GetParent(dxgi_dev, &IID_IDXGIAdapter1, (void**)&adapter); + if (FAILED(hr)) { + mp_fatal(log, "Failed to get DXGI adapter\n"); + goto done; + } + hr = IDXGIAdapter1_GetParent(adapter, &IID_IDXGIFactory1, (void**)&factory); + if (FAILED(hr)) { + mp_fatal(log, "Failed to get DXGI factory\n"); + goto done; + } + hr = IDXGIFactory1_QueryInterface(factory, &IID_IDXGIFactory2, + (void**)&factory2); + if (FAILED(hr)) + factory2 = NULL; + + // Try B8G8R8A8_UNORM first, since at least in Windows 8, it's always the + // format of the desktop image + static const DXGI_FORMAT formats[] = { + DXGI_FORMAT_B8G8R8A8_UNORM, + DXGI_FORMAT_R8G8B8A8_UNORM, + }; + static const int formats_len = MP_ARRAY_SIZE(formats); + bool flip = factory2 && opts->flip; + + // Return here to retry creating the swapchain + do { + for (int i = 0; i < formats_len; i++) { + if (factory2) { + // Create a DXGI 1.2+ (Windows 8+) swap chain if possible + hr = create_swapchain_1_2(dev, factory2, log, opts, flip, + formats[i], &swapchain); + } else { + // Fall back to DXGI 1.1 (Windows 7) + hr = create_swapchain_1_1(dev, factory, log, opts, formats[i], + &swapchain); + } + if (SUCCEEDED(hr)) + break; + } + if (SUCCEEDED(hr)) + break; + + if (flip) { + mp_dbg(log, "Failed to create flip-model swapchain, trying bitblt\n"); + flip = false; + continue; + } + + mp_fatal(log, "Failed to create swapchain: %s\n", mp_HRESULT_to_str(hr)); + goto done; + } while (true); + + // Prevent DXGI from making changes to the VO window, otherwise it will + // hook the Alt+Enter keystroke and make it trigger an ugly transition to + // exclusive fullscreen mode instead of running the user-set command. + IDXGIFactory_MakeWindowAssociation(factory, opts->window, + DXGI_MWA_NO_WINDOW_CHANGES | DXGI_MWA_NO_ALT_ENTER | + DXGI_MWA_NO_PRINT_SCREEN); + + if (factory2) { + mp_verbose(log, "Using DXGI 1.2+\n"); + } else { + mp_verbose(log, "Using DXGI 1.1\n"); + } + + DXGI_SWAP_CHAIN_DESC scd = {0}; + IDXGISwapChain_GetDesc(swapchain, &scd); + if (scd.SwapEffect == DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL) { + mp_verbose(log, "Using flip-model presentation\n"); + } else { + mp_verbose(log, "Using bitblt-model presentation\n"); + } + + *swapchain_out = swapchain; + swapchain = NULL; + success = true; + +done: + SAFE_RELEASE(swapchain); + SAFE_RELEASE(factory2); + SAFE_RELEASE(factory); + SAFE_RELEASE(adapter); + SAFE_RELEASE(dxgi_dev); + return success; +} |