diff options
Diffstat (limited to 'src/capture/kms_vaapi.c')
| -rw-r--r-- | src/capture/kms_vaapi.c | 470 |
1 files changed, 470 insertions, 0 deletions
diff --git a/src/capture/kms_vaapi.c b/src/capture/kms_vaapi.c new file mode 100644 index 0000000..7e42011 --- /dev/null +++ b/src/capture/kms_vaapi.c @@ -0,0 +1,470 @@ +#include "../../include/capture/kms_vaapi.h" +#include "../../include/kms/kms_client.h" +#include "../../include/egl.h" +#include "../../include/utils.h" +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <assert.h> +#include <X11/Xlib.h> +#include <libavutil/hwcontext.h> +#include <libavutil/hwcontext_vaapi.h> +#include <libavutil/frame.h> +#include <libavcodec/avcodec.h> +#include <va/va.h> +#include <va/va_drmcommon.h> + +typedef struct { + gsr_capture_kms_vaapi_params params; + bool should_stop; + bool stop_is_error; + bool created_hw_frame; + + gsr_egl egl; + + gsr_kms_client kms_client; + + uint32_t fourcc; + uint64_t modifiers; + int dmabuf_fd; + uint32_t pitch; + uint32_t offset; + vec2i kms_size; + + vec2i capture_pos; + vec2i capture_size; + bool screen_capture; + + VADisplay va_dpy; + VAConfigID config_id; + VAContextID context_id; + VASurfaceID input_surface; + VABufferID buffer_id; + VARectangle input_region; +} gsr_capture_kms_vaapi; + +static int max_int(int a, int b) { + return a > b ? a : b; +} + +static void gsr_capture_kms_vaapi_stop(gsr_capture *cap, AVCodecContext *video_codec_context); + +static bool drm_create_codec_context(gsr_capture_kms_vaapi *cap_kms, AVCodecContext *video_codec_context) { + AVBufferRef *device_ctx; + if(av_hwdevice_ctx_create(&device_ctx, AV_HWDEVICE_TYPE_VAAPI, "/dev/dri/renderD128", NULL, 0) < 0) { + fprintf(stderr, "Error: Failed to create hardware device context\n"); + return false; + } + + AVBufferRef *frame_context = av_hwframe_ctx_alloc(device_ctx); + if(!frame_context) { + fprintf(stderr, "Error: Failed to create hwframe context\n"); + av_buffer_unref(&device_ctx); + return false; + } + + AVHWFramesContext *hw_frame_context = + (AVHWFramesContext *)frame_context->data; + hw_frame_context->width = video_codec_context->width; + hw_frame_context->height = video_codec_context->height; + hw_frame_context->sw_format = AV_PIX_FMT_NV12;//AV_PIX_FMT_0RGB32;//AV_PIX_FMT_YUV420P;//AV_PIX_FMT_0RGB32;//AV_PIX_FMT_NV12; + hw_frame_context->format = video_codec_context->pix_fmt; + hw_frame_context->device_ref = device_ctx; + hw_frame_context->device_ctx = (AVHWDeviceContext*)device_ctx->data; + + hw_frame_context->initial_pool_size = 1; // TODO: (and in other places) + + AVVAAPIDeviceContext *vactx =((AVHWDeviceContext*)device_ctx->data)->hwctx; + cap_kms->va_dpy = vactx->display; + + if (av_hwframe_ctx_init(frame_context) < 0) { + fprintf(stderr, "Error: Failed to initialize hardware frame context " + "(note: ffmpeg version needs to be > 4.0)\n"); + av_buffer_unref(&device_ctx); + //av_buffer_unref(&frame_context); + return false; + } + + video_codec_context->hw_device_ctx = av_buffer_ref(device_ctx); + video_codec_context->hw_frames_ctx = av_buffer_ref(frame_context); + return true; +} + +#define DRM_FORMAT_MOD_INVALID 72057594037927935 + +// TODO: On monitor reconfiguration, find monitor x, y, width and height again. Do the same for nvfbc. + +static int gsr_capture_kms_vaapi_start(gsr_capture *cap, AVCodecContext *video_codec_context) { + gsr_capture_kms_vaapi *cap_kms = cap->priv; + + // TODO: Allow specifying another card, and in other places (TODO: Use /dev/dri/renderD128?) + if(gsr_kms_client_init(&cap_kms->kms_client, "/dev/dri/card0", cap_kms->params.program_dir) != 0) { + return -1; + } + + gsr_kms_response kms_response; + if(gsr_kms_client_get_kms(&cap_kms->kms_client, &kms_response) != 0) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_start: failed to get kms, error: %d (%s)\n", kms_response.result, kms_response.data.err_msg); + gsr_capture_kms_vaapi_stop(cap, video_codec_context); + return -1; + } + + cap_kms->dmabuf_fd = kms_response.data.fd.fd; + cap_kms->pitch = kms_response.data.fd.pitch; + cap_kms->offset = kms_response.data.fd.offset; + cap_kms->fourcc = kms_response.data.fd.pixel_format; + cap_kms->modifiers = kms_response.data.fd.modifier; + + // TODO: Update on monitor reconfiguration, make sure to update on window focus change (maybe for kms update each second?), needs to work on focus change to the witcher 3 on full window, fullscreen firefox, etc + gsr_monitor monitor; + if(strcmp(cap_kms->params.display_to_capture, "screen") == 0) { + monitor.pos.x = 0; + monitor.pos.y = 0; + monitor.size.x = XWidthOfScreen(DefaultScreenOfDisplay(cap_kms->params.dpy)); + monitor.size.y = XHeightOfScreen(DefaultScreenOfDisplay(cap_kms->params.dpy)); + cap_kms->screen_capture = true; + } else if(!get_monitor_by_name(cap_kms->params.dpy, cap_kms->params.display_to_capture, &monitor)) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_start: failed to find monitor by name \"%s\"\n", cap_kms->params.display_to_capture); + gsr_capture_kms_vaapi_stop(cap, video_codec_context); + return -1; + } + + cap_kms->capture_pos = monitor.pos; + cap_kms->capture_size = monitor.size; + + cap_kms->kms_size.x = kms_response.data.fd.width; + cap_kms->kms_size.y = kms_response.data.fd.height; + + if(!gsr_egl_load(&cap_kms->egl, cap_kms->params.dpy)) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_start: failed to load opengl\n"); + return -1; + } + + /* Disable vsync */ + cap_kms->egl.eglSwapInterval(cap_kms->egl.egl_display, 0); + + video_codec_context->width = max_int(2, cap_kms->capture_size.x & ~1); + video_codec_context->height = max_int(2, cap_kms->capture_size.y & ~1); + + if(!drm_create_codec_context(cap_kms, video_codec_context)) { + gsr_capture_kms_vaapi_stop(cap, video_codec_context); + return -1; + } + + //cap_kms->window_resize_timer = clock_get_monotonic_seconds(); // TODO: + return 0; +} + +static void gsr_capture_kms_vaapi_tick(gsr_capture *cap, AVCodecContext *video_codec_context, AVFrame **frame) { + gsr_capture_kms_vaapi *cap_kms = cap->priv; + + // TODO: + //cap_kms->egl.glClear(GL_COLOR_BUFFER_BIT); + + //const double window_resize_timeout = 1.0; // 1 second + if(!cap_kms->created_hw_frame) { + if(cap_kms->buffer_id) { + vaDestroyBuffer(cap_kms->va_dpy, cap_kms->buffer_id); + cap_kms->buffer_id = 0; + } + + if(cap_kms->context_id) { + vaDestroyContext(cap_kms->va_dpy, cap_kms->context_id); + cap_kms->context_id = 0; + } + + if(cap_kms->config_id) { + vaDestroyConfig(cap_kms->va_dpy, cap_kms->config_id); + cap_kms->config_id = 0; + } + + if(cap_kms->input_surface) { + vaDestroySurfaces(cap_kms->va_dpy, &cap_kms->input_surface, 1); + cap_kms->input_surface = 0; + } + + if(!cap_kms->created_hw_frame) { + cap_kms->created_hw_frame = true; + av_frame_free(frame); + *frame = av_frame_alloc(); + if(!frame) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: failed to allocate frame\n"); + cap_kms->should_stop = true; + cap_kms->stop_is_error = true; + return; + } + (*frame)->format = video_codec_context->pix_fmt; + (*frame)->width = video_codec_context->width; + (*frame)->height = video_codec_context->height; + (*frame)->color_range = video_codec_context->color_range; + (*frame)->color_primaries = video_codec_context->color_primaries; + (*frame)->color_trc = video_codec_context->color_trc; + (*frame)->colorspace = video_codec_context->colorspace; + (*frame)->chroma_location = video_codec_context->chroma_sample_location; + + int res = av_hwframe_get_buffer(video_codec_context->hw_frames_ctx, *frame, 0); + if(res < 0) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: av_hwframe_get_buffer failed: %d\n", res); + cap_kms->should_stop = true; + cap_kms->stop_is_error = true; + return; + } + } + + uintptr_t dmabuf = cap_kms->dmabuf_fd; + + VASurfaceAttribExternalBuffers buf = {0}; + buf.pixel_format = VA_FOURCC_BGRX; // VA_FOURCC_XRGB + buf.width = cap_kms->kms_size.x; + buf.height = cap_kms->kms_size.y; + buf.data_size = cap_kms->kms_size.y * cap_kms->pitch; + buf.num_planes = 1; + buf.pitches[0] = cap_kms->pitch; + buf.offsets[0] = cap_kms->offset; + buf.buffers = &dmabuf; + buf.num_buffers = 1; + buf.flags = 0; + buf.private_data = 0; + + VADRMFormatModifierList modifier_list = {0}; + modifier_list.modifiers = &cap_kms->modifiers; + modifier_list.num_modifiers = 1; + + #define VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME 0x20000000 + + VASurfaceAttrib attribs[3] = {0}; + attribs[0].type = VASurfaceAttribMemoryType; + attribs[0].flags = VA_SURFACE_ATTRIB_SETTABLE; + attribs[0].value.type = VAGenericValueTypeInteger; + attribs[0].value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // TODO: prime1 instead? + attribs[1].type = VASurfaceAttribExternalBufferDescriptor; + attribs[1].flags = VA_SURFACE_ATTRIB_SETTABLE; + attribs[1].value.type = VAGenericValueTypePointer; + attribs[1].value.value.p = &buf; + + int num_attribs = 2; + if(cap_kms->modifiers != DRM_FORMAT_MOD_INVALID) { + attribs[2].type = VASurfaceAttribDRMFormatModifiers; + attribs[2].flags = VA_SURFACE_ATTRIB_SETTABLE; + attribs[2].value.type = VAGenericValueTypePointer; + attribs[2].value.value.p = &modifier_list; + ++num_attribs; + } + + VAStatus va_status = vaCreateSurfaces(cap_kms->va_dpy, VA_RT_FORMAT_RGB32, cap_kms->kms_size.x, cap_kms->kms_size.y, &cap_kms->input_surface, 1, attribs, num_attribs); + if(va_status != VA_STATUS_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: vaCreateSurfaces failed: %d\n", va_status); + cap_kms->should_stop = true; + cap_kms->stop_is_error = true; + return; + } + + //vaBeginPicture(cap_kms->va_dpy, ) + + va_status = vaCreateConfig(cap_kms->va_dpy, VAProfileNone, VAEntrypointVideoProc, NULL, 0, &cap_kms->config_id); + if(va_status != VA_STATUS_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: vaCreateConfig failed: %d\n", va_status); + cap_kms->should_stop = true; + cap_kms->stop_is_error = true; + return; + } + + VASurfaceID target_surface_id = (uintptr_t)(*frame)->data[3]; + va_status = vaCreateContext(cap_kms->va_dpy, cap_kms->config_id, cap_kms->kms_size.x, cap_kms->kms_size.y, VA_PROGRESSIVE, &target_surface_id, 1, &cap_kms->context_id); + if(va_status != VA_STATUS_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: vaCreateContext failed: %d\n", va_status); + cap_kms->should_stop = true; + cap_kms->stop_is_error = true; + return; + } + + cap_kms->input_region = (VARectangle) { + .x = cap_kms->capture_pos.x, + .y = cap_kms->capture_pos.y, + .width = cap_kms->capture_size.x, + .height = cap_kms->capture_size.y + }; + + // Copying a surface to another surface will automatically perform the color conversion. Thanks vaapi! + VAProcPipelineParameterBuffer params = {0}; + params.surface = cap_kms->input_surface; + if(cap_kms->screen_capture) + params.surface_region = NULL; + else + params.surface_region = &cap_kms->input_region; + params.output_region = NULL; + params.output_background_color = 0; + params.filter_flags = VA_FRAME_PICTURE; + // TODO: Colors + params.input_color_properties.color_range = (*frame)->color_range == AVCOL_RANGE_JPEG ? VA_SOURCE_RANGE_FULL : VA_SOURCE_RANGE_REDUCED; + params.output_color_properties.color_range = (*frame)->color_range == AVCOL_RANGE_JPEG ? VA_SOURCE_RANGE_FULL : VA_SOURCE_RANGE_REDUCED; + + va_status = vaCreateBuffer(cap_kms->va_dpy, cap_kms->context_id, VAProcPipelineParameterBufferType, sizeof(params), 1, ¶ms, &cap_kms->buffer_id); + if(va_status != VA_STATUS_SUCCESS) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: vaCreateBuffer failed: %d\n", va_status); + cap_kms->should_stop = true; + cap_kms->stop_is_error = true; + return; + } + + // Clear texture with black background because the source texture (window_texture_get_opengl_texture_id(&cap_kms->window_texture)) + // might be smaller than cap_kms->target_texture_id + // TODO: + //cap_kms->egl.glClearTexImage(cap_kms->target_texture_id, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); + } +} + +static bool gsr_capture_kms_vaapi_should_stop(gsr_capture *cap, bool *err) { + gsr_capture_kms_vaapi *cap_kms = cap->priv; + if(cap_kms->should_stop) { + if(err) + *err = cap_kms->stop_is_error; + return true; + } + + if(err) + *err = false; + return false; +} + +static int gsr_capture_kms_vaapi_capture(gsr_capture *cap, AVFrame *frame) { + gsr_capture_kms_vaapi *cap_kms = cap->priv; + + VASurfaceID target_surface_id = (uintptr_t)frame->data[3]; + + VAStatus va_status = vaBeginPicture(cap_kms->va_dpy, cap_kms->context_id, target_surface_id); + if(va_status != VA_STATUS_SUCCESS) { + static bool error_printed = false; + if(!error_printed) { + error_printed = true; + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: vaBeginPicture failed: %d\n", va_status); + } + return -1; + } + + va_status = vaRenderPicture(cap_kms->va_dpy, cap_kms->context_id, &cap_kms->buffer_id, 1); + if(va_status != VA_STATUS_SUCCESS) { + vaEndPicture(cap_kms->va_dpy, cap_kms->context_id); + static bool error_printed = false; + if(!error_printed) { + error_printed = true; + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: vaRenderPicture failed: %d\n", va_status); + } + return -1; + } + + va_status = vaEndPicture(cap_kms->va_dpy, cap_kms->context_id); + if(va_status != VA_STATUS_SUCCESS) { + static bool error_printed = false; + if(!error_printed) { + error_printed = true; + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_tick: vaEndPicture failed: %d\n", va_status); + } + return -1; + } + + // TODO: Needed? + //vaSyncSurface(cap_kms->va_dpy, cap_kms->input_surface); + //vaSyncSurface(cap_kms->va_dpy, target_surface_id); + + // TODO: Remove + //cap_kms->egl.eglSwapBuffers(cap_kms->egl.egl_display, cap_kms->egl.egl_surface); + + return 0; +} + +static void gsr_capture_kms_vaapi_stop(gsr_capture *cap, AVCodecContext *video_codec_context) { + gsr_capture_kms_vaapi *cap_kms = cap->priv; + + if(cap_kms->buffer_id) { + vaDestroyBuffer(cap_kms->va_dpy, cap_kms->buffer_id); + cap_kms->buffer_id = 0; + } + + if(cap_kms->context_id) { + vaDestroyContext(cap_kms->va_dpy, cap_kms->context_id); + cap_kms->context_id = 0; + } + + if(cap_kms->config_id) { + vaDestroyConfig(cap_kms->va_dpy, cap_kms->config_id); + cap_kms->config_id = 0; + } + + if(cap_kms->input_surface) { + vaDestroySurfaces(cap_kms->va_dpy, &cap_kms->input_surface, 1); + cap_kms->input_surface = 0; + } + + if(cap_kms->dmabuf_fd > 0) { + close(cap_kms->dmabuf_fd); + cap_kms->dmabuf_fd = 0; + } + + if(video_codec_context->hw_device_ctx) + av_buffer_unref(&video_codec_context->hw_device_ctx); + if(video_codec_context->hw_frames_ctx) + av_buffer_unref(&video_codec_context->hw_frames_ctx); + + gsr_egl_unload(&cap_kms->egl); + gsr_kms_client_deinit(&cap_kms->kms_client); +} + +static void gsr_capture_kms_vaapi_destroy(gsr_capture *cap, AVCodecContext *video_codec_context) { + (void)video_codec_context; + gsr_capture_kms_vaapi *cap_kms = cap->priv; + if(cap->priv) { + gsr_capture_kms_vaapi_stop(cap, video_codec_context); + free((void*)cap_kms->params.display_to_capture); + cap_kms->params.display_to_capture = NULL; + free(cap->priv); + cap->priv = NULL; + } + free(cap); +} + +gsr_capture* gsr_capture_kms_vaapi_create(const gsr_capture_kms_vaapi_params *params) { + if(!params) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_create params is NULL\n"); + return NULL; + } + + gsr_capture *cap = calloc(1, sizeof(gsr_capture)); + if(!cap) + return NULL; + + gsr_capture_kms_vaapi *cap_kms = calloc(1, sizeof(gsr_capture_kms_vaapi)); + if(!cap_kms) { + free(cap); + return NULL; + } + + Display *display = XOpenDisplay(NULL); + if(!display) { + fprintf(stderr, "gsr error: gsr_capture_kms_vaapi_create failed: XOpenDisplay failed\n"); + free(cap); + free(cap_kms); + return NULL; + } + + const char *display_to_capture = strdup(params->display_to_capture); + if(!display_to_capture) { + free(cap); + free(cap_kms); + return NULL; + } + + cap_kms->params = *params; + cap_kms->params.display_to_capture = display_to_capture; + + *cap = (gsr_capture) { + .start = gsr_capture_kms_vaapi_start, + .tick = gsr_capture_kms_vaapi_tick, + .should_stop = gsr_capture_kms_vaapi_should_stop, + .capture = gsr_capture_kms_vaapi_capture, + .destroy = gsr_capture_kms_vaapi_destroy, + .priv = cap_kms + }; + + return cap; +} |