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mpv/video/out/d3d11/context.c

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/*
* 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 "common/msg.h"
#include "options/m_config.h"
#include "osdep/timer.h"
#include "osdep/windows_utils.h"
#include "video/out/gpu/context.h"
#include "video/out/gpu/d3d11_helpers.h"
#include "video/out/gpu/spirv.h"
#include "video/out/w32_common.h"
#include "context.h"
#include "ra_d3d11.h"
static int d3d11_validate_adapter(struct mp_log *log,
const struct m_option *opt,
struct bstr name, const char **value);
struct d3d11_opts {
int feature_level;
int warp;
bool flip;
int sync_interval;
char *adapter_name;
int output_format;
int color_space;
bool exclusive_fs;
};
#define OPT_BASE_STRUCT struct d3d11_opts
const struct m_sub_options d3d11_conf = {
.opts = (const struct m_option[]) {
{"d3d11-warp", OPT_CHOICE(warp,
{"auto", -1},
{"no", 0},
{"yes", 1})},
{"d3d11-feature-level", OPT_CHOICE(feature_level,
{"12_1", D3D_FEATURE_LEVEL_12_1},
{"12_0", D3D_FEATURE_LEVEL_12_0},
{"11_1", D3D_FEATURE_LEVEL_11_1},
{"11_0", D3D_FEATURE_LEVEL_11_0},
{"10_1", D3D_FEATURE_LEVEL_10_1},
{"10_0", D3D_FEATURE_LEVEL_10_0},
{"9_3", D3D_FEATURE_LEVEL_9_3},
{"9_2", D3D_FEATURE_LEVEL_9_2},
{"9_1", D3D_FEATURE_LEVEL_9_1})},
{"d3d11-flip", OPT_BOOL(flip)},
{"d3d11-sync-interval", OPT_INT(sync_interval), M_RANGE(0, 4)},
{"d3d11-adapter", OPT_STRING_VALIDATE(adapter_name,
d3d11_validate_adapter)},
{"d3d11-output-format", OPT_CHOICE(output_format,
{"auto", DXGI_FORMAT_UNKNOWN},
{"rgba8", DXGI_FORMAT_R8G8B8A8_UNORM},
{"bgra8", DXGI_FORMAT_B8G8R8A8_UNORM},
{"rgb10_a2", DXGI_FORMAT_R10G10B10A2_UNORM},
{"rgba16f", DXGI_FORMAT_R16G16B16A16_FLOAT})},
{"d3d11-output-csp", OPT_CHOICE(color_space,
{"auto", -1},
{"srgb", DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709},
{"linear", DXGI_COLOR_SPACE_RGB_FULL_G10_NONE_P709},
{"pq", DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020},
{"bt.2020", DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P2020})},
{"d3d11-exclusive-fs", OPT_BOOL(exclusive_fs)},
{0}
},
.defaults = &(const struct d3d11_opts) {
.feature_level = D3D_FEATURE_LEVEL_12_1,
.warp = -1,
.flip = true,
.sync_interval = 1,
.adapter_name = NULL,
.output_format = DXGI_FORMAT_UNKNOWN,
.color_space = -1,
},
.size = sizeof(struct d3d11_opts)
};
struct priv {
struct d3d11_opts *opts;
struct m_config_cache *opts_cache;
struct mp_vo_opts *vo_opts;
struct m_config_cache *vo_opts_cache;
struct ra_tex *backbuffer;
ID3D11Device *device;
IDXGISwapChain *swapchain;
struct mp_colorspace swapchain_csp;
int64_t perf_freq;
unsigned last_sync_refresh_count;
int64_t last_sync_qpc_time;
int64_t vsync_duration_qpc;
int64_t last_submit_qpc;
};
static int d3d11_validate_adapter(struct mp_log *log,
const struct m_option *opt,
struct bstr name, const char **value)
{
struct bstr param = bstr0(*value);
bool help = bstr_equals0(param, "help");
bool adapter_matched = false;
struct bstr listing = { 0 };
if (bstr_equals0(param, "")) {
return 0;
}
adapter_matched = mp_d3d11_list_or_verify_adapters(log,
help ? bstr0(NULL) : param,
help ? &listing : NULL);
if (help) {
mp_info(log, "Available D3D11 adapters:\n%.*s",
BSTR_P(listing));
talloc_free(listing.start);
return M_OPT_EXIT;
}
if (!adapter_matched) {
mp_err(log, "No adapter matching '%.*s'!\n", BSTR_P(param));
}
return adapter_matched ? 0 : M_OPT_INVALID;
}
static struct ra_tex *get_backbuffer(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
ID3D11Texture2D *backbuffer = NULL;
struct ra_tex *tex = NULL;
HRESULT hr;
hr = IDXGISwapChain_GetBuffer(p->swapchain, 0, &IID_ID3D11Texture2D,
(void**)&backbuffer);
if (FAILED(hr)) {
MP_ERR(ctx, "Couldn't get swapchain image\n");
goto done;
}
tex = ra_d3d11_wrap_tex(ctx->ra, (ID3D11Resource *)backbuffer);
done:
SAFE_RELEASE(backbuffer);
return tex;
}
static bool resize(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
HRESULT hr;
if (p->backbuffer) {
MP_ERR(ctx, "Attempt at resizing while a frame was in progress!\n");
return false;
}
hr = IDXGISwapChain_ResizeBuffers(p->swapchain, 0, ctx->vo->dwidth,
ctx->vo->dheight, DXGI_FORMAT_UNKNOWN, 0);
if (FAILED(hr)) {
MP_FATAL(ctx, "Couldn't resize swapchain: %s\n", mp_HRESULT_to_str(hr));
return false;
}
return true;
}
static bool d3d11_reconfig(struct ra_ctx *ctx)
{
vo_w32_config(ctx->vo);
return resize(ctx);
}
static int d3d11_color_depth(struct ra_swapchain *sw)
{
struct priv *p = sw->priv;
DXGI_SWAP_CHAIN_DESC desc;
HRESULT hr = IDXGISwapChain_GetDesc(p->swapchain, &desc);
if (FAILED(hr)) {
MP_ERR(sw->ctx, "Failed to query swap chain description: %s!\n",
mp_HRESULT_to_str(hr));
return 0;
}
const struct ra_format *ra_fmt =
ra_d3d11_get_ra_format(sw->ctx->ra, desc.BufferDesc.Format);
if (!ra_fmt)
return 0;
return ra_fmt->component_depth[0];
}
static bool d3d11_start_frame(struct ra_swapchain *sw, struct ra_fbo *out_fbo)
{
struct priv *p = sw->priv;
if (!out_fbo)
return true;
assert(!p->backbuffer);
p->backbuffer = get_backbuffer(sw->ctx);
if (!p->backbuffer)
return false;
*out_fbo = (struct ra_fbo) {
.tex = p->backbuffer,
.flip = false,
.color_space = p->swapchain_csp
};
return true;
}
static bool d3d11_submit_frame(struct ra_swapchain *sw,
const struct vo_frame *frame)
{
struct priv *p = sw->priv;
ra_d3d11_flush(sw->ctx->ra);
ra_tex_free(sw->ctx->ra, &p->backbuffer);
return true;
}
static int64_t qpc_to_us(struct ra_swapchain *sw, int64_t qpc)
{
struct priv *p = sw->priv;
// Convert QPC units (1/perf_freq seconds) to microseconds. This will work
// without overflow because the QPC value is guaranteed not to roll-over
// within 100 years, so perf_freq must be less than 2.9*10^9.
return qpc / p->perf_freq * 1000000 +
qpc % p->perf_freq * 1000000 / p->perf_freq;
}
static int64_t qpc_us_now(struct ra_swapchain *sw)
{
LARGE_INTEGER perf_count;
QueryPerformanceCounter(&perf_count);
return qpc_to_us(sw, perf_count.QuadPart);
}
static void d3d11_swap_buffers(struct ra_swapchain *sw)
{
struct priv *p = sw->priv;
m_config_cache_update(p->opts_cache);
LARGE_INTEGER perf_count;
QueryPerformanceCounter(&perf_count);
p->last_submit_qpc = perf_count.QuadPart;
IDXGISwapChain_Present(p->swapchain, p->opts->sync_interval, 0);
}
static void d3d11_get_vsync(struct ra_swapchain *sw, struct vo_vsync_info *info)
{
struct priv *p = sw->priv;
HRESULT hr;
m_config_cache_update(p->opts_cache);
// The calculations below are only valid if mpv presents on every vsync
if (p->opts->sync_interval != 1)
return;
// They're also only valid for flip model swapchains
DXGI_SWAP_CHAIN_DESC desc;
hr = IDXGISwapChain_GetDesc(p->swapchain, &desc);
if (FAILED(hr) || (desc.SwapEffect != DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL &&
desc.SwapEffect != DXGI_SWAP_EFFECT_FLIP_DISCARD))
{
return;
}
// GetLastPresentCount returns a sequential ID for the frame submitted by
// the last call to IDXGISwapChain::Present()
UINT submit_count;
hr = IDXGISwapChain_GetLastPresentCount(p->swapchain, &submit_count);
if (FAILED(hr))
return;
// GetFrameStatistics returns two pairs. The first is (PresentCount,
// PresentRefreshCount) which relates a present ID (on the same timeline as
// GetLastPresentCount) to the physical vsync it was displayed on. The
// second is (SyncRefreshCount, SyncQPCTime), which relates a physical vsync
// to a timestamp on the same clock as QueryPerformanceCounter.
DXGI_FRAME_STATISTICS stats;
hr = IDXGISwapChain_GetFrameStatistics(p->swapchain, &stats);
if (hr == DXGI_ERROR_FRAME_STATISTICS_DISJOINT) {
p->last_sync_refresh_count = 0;
p->last_sync_qpc_time = 0;
}
if (FAILED(hr))
return;
// Detecting skipped vsyncs is possible but not supported yet
info->skipped_vsyncs = 0;
// Get the number of physical vsyncs that have passed since the last call.
// Check for 0 here, since sometimes GetFrameStatistics returns S_OK but
// with 0s in some (all?) members of DXGI_FRAME_STATISTICS.
unsigned src_passed = 0;
if (stats.SyncRefreshCount && p->last_sync_refresh_count)
src_passed = stats.SyncRefreshCount - p->last_sync_refresh_count;
p->last_sync_refresh_count = stats.SyncRefreshCount;
// Get the elapsed time passed between the above vsyncs
unsigned sqt_passed = 0;
if (stats.SyncQPCTime.QuadPart && p->last_sync_qpc_time)
sqt_passed = stats.SyncQPCTime.QuadPart - p->last_sync_qpc_time;
p->last_sync_qpc_time = stats.SyncQPCTime.QuadPart;
// If any vsyncs have passed, estimate the physical frame rate
if (src_passed && sqt_passed)
p->vsync_duration_qpc = sqt_passed / src_passed;
if (p->vsync_duration_qpc)
info->vsync_duration = qpc_to_us(sw, p->vsync_duration_qpc);
// If the physical frame rate is known and the other members of
// DXGI_FRAME_STATISTICS are non-0, estimate the timing of the next frame
if (p->vsync_duration_qpc && stats.PresentCount &&
stats.PresentRefreshCount && stats.SyncRefreshCount &&
stats.SyncQPCTime.QuadPart)
{
// It's not clear if PresentRefreshCount and SyncRefreshCount can refer
// to different frames, but in case they can, assuming mpv presents on
// every frame, guess the present count that relates to SyncRefreshCount.
unsigned expected_sync_pc = stats.PresentCount +
(stats.SyncRefreshCount - stats.PresentRefreshCount);
// Now guess the timestamp of the last submitted frame based on the
// timestamp of the frame at SyncRefreshCount and the frame rate
int queued_frames = submit_count - expected_sync_pc;
int64_t last_queue_display_time_qpc = stats.SyncQPCTime.QuadPart +
queued_frames * p->vsync_duration_qpc;
// Only set the estimated display time if it's after the last submission
// time. It could be before if mpv skips a lot of frames.
if (last_queue_display_time_qpc >= p->last_submit_qpc) {
info->last_queue_display_time = mp_time_us() +
(qpc_to_us(sw, last_queue_display_time_qpc) - qpc_us_now(sw));
}
}
}
static bool d3d11_set_fullscreen(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
HRESULT hr;
m_config_cache_update(p->opts_cache);
if (!p->swapchain) {
MP_ERR(ctx, "Full screen configuration was requested before D3D11 "
"swap chain was ready!");
return false;
}
// we only want exclusive FS if we are entering FS and
// exclusive FS is enabled. Otherwise disable exclusive FS.
bool enable_exclusive_fs = p->vo_opts->fullscreen &&
p->opts->exclusive_fs;
MP_VERBOSE(ctx, "%s full-screen exclusive mode while %s fullscreen\n",
enable_exclusive_fs ? "Enabling" : "Disabling",
ctx->vo->opts->fullscreen ? "entering" : "leaving");
hr = IDXGISwapChain_SetFullscreenState(p->swapchain,
enable_exclusive_fs, NULL);
if (FAILED(hr))
return false;
if (!resize(ctx))
return false;
return true;
}
static int d3d11_control(struct ra_ctx *ctx, int *events, int request, void *arg)
{
struct priv *p = ctx->priv;
int ret = -1;
bool fullscreen_switch_needed = false;
switch (request) {
case VOCTRL_VO_OPTS_CHANGED: {
void *changed_option;
while (m_config_cache_get_next_changed(p->vo_opts_cache,
&changed_option))
{
struct mp_vo_opts *vo_opts = p->vo_opts_cache->opts;
if (changed_option == &vo_opts->fullscreen) {
fullscreen_switch_needed = true;
}
}
break;
}
default:
break;
}
// if leaving full screen, handle d3d11 stuff first, then general
// windowing
if (fullscreen_switch_needed && !p->vo_opts->fullscreen) {
if (!d3d11_set_fullscreen(ctx))
return VO_FALSE;
fullscreen_switch_needed = false;
}
ret = vo_w32_control(ctx->vo, events, request, arg);
// if entering full screen, handle d3d11 after general windowing stuff
if (fullscreen_switch_needed && p->vo_opts->fullscreen) {
if (!d3d11_set_fullscreen(ctx))
return VO_FALSE;
fullscreen_switch_needed = false;
}
if (*events & VO_EVENT_RESIZE) {
if (!resize(ctx))
return VO_ERROR;
}
return ret;
}
static void d3d11_uninit(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
if (p->swapchain)
IDXGISwapChain_SetFullscreenState(p->swapchain, FALSE, NULL);
if (ctx->ra)
ra_tex_free(ctx->ra, &p->backbuffer);
SAFE_RELEASE(p->swapchain);
vo_w32_uninit(ctx->vo);
SAFE_RELEASE(p->device);
// Destroy the RA last to prevent objects we hold from showing up in D3D's
// leak checker
if (ctx->ra)
ctx->ra->fns->destroy(ctx->ra);
}
static const struct ra_swapchain_fns d3d11_swapchain = {
.color_depth = d3d11_color_depth,
.start_frame = d3d11_start_frame,
.submit_frame = d3d11_submit_frame,
.swap_buffers = d3d11_swap_buffers,
.get_vsync = d3d11_get_vsync,
};
static bool d3d11_init(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv = talloc_zero(ctx, struct priv);
p->opts_cache = m_config_cache_alloc(ctx, ctx->global, &d3d11_conf);
p->opts = p->opts_cache->opts;
p->vo_opts_cache = m_config_cache_alloc(ctx, ctx->vo->global, &vo_sub_opts);
p->vo_opts = p->vo_opts_cache->opts;
LARGE_INTEGER perf_freq;
QueryPerformanceFrequency(&perf_freq);
p->perf_freq = perf_freq.QuadPart;
struct ra_swapchain *sw = ctx->swapchain = talloc_zero(ctx, struct ra_swapchain);
sw->priv = p;
sw->ctx = ctx;
sw->fns = &d3d11_swapchain;
struct d3d11_device_opts dopts = {
.debug = ctx->opts.debug,
.allow_warp = p->opts->warp != 0,
.force_warp = p->opts->warp == 1,
.max_feature_level = p->opts->feature_level,
.max_frame_latency = ctx->vo->opts->swapchain_depth,
.adapter_name = p->opts->adapter_name,
};
if (!mp_d3d11_create_present_device(ctx->log, &dopts, &p->device))
goto error;
if (!spirv_compiler_init(ctx))
goto error;
ctx->ra = ra_d3d11_create(p->device, ctx->log, ctx->spirv);
if (!ctx->ra)
goto error;
if (!vo_w32_init(ctx->vo))
goto error;
UINT usage = DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_SHADER_INPUT;
if (ID3D11Device_GetFeatureLevel(p->device) >= D3D_FEATURE_LEVEL_11_0 &&
p->opts->output_format != DXGI_FORMAT_B8G8R8A8_UNORM)
{
usage |= DXGI_USAGE_UNORDERED_ACCESS;
}
struct d3d11_swapchain_opts scopts = {
.window = vo_w32_hwnd(ctx->vo),
.width = ctx->vo->dwidth,
.height = ctx->vo->dheight,
.format = p->opts->output_format,
.color_space = p->opts->color_space,
.configured_csp = &p->swapchain_csp,
.flip = p->opts->flip,
// Add one frame for the backbuffer and one frame of "slack" to reduce
// contention with the window manager when acquiring the backbuffer
.length = ctx->vo->opts->swapchain_depth + 2,
.usage = usage,
};
if (!mp_d3d11_create_swapchain(p->device, ctx->log, &scopts, &p->swapchain))
goto error;
return true;
error:
d3d11_uninit(ctx);
return false;
}
IDXGISwapChain *ra_d3d11_ctx_get_swapchain(struct ra_ctx *ra)
{
if (ra->swapchain->fns != &d3d11_swapchain)
return NULL;
struct priv *p = ra->priv;
IDXGISwapChain_AddRef(p->swapchain);
return p->swapchain;
}
const struct ra_ctx_fns ra_ctx_d3d11 = {
.type = "d3d11",
.name = "d3d11",
.reconfig = d3d11_reconfig,
.control = d3d11_control,
.init = d3d11_init,
.uninit = d3d11_uninit,
};
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