369 lines
13 KiB
C
369 lines
13 KiB
C
#include <va/va_drm.h>
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#include <va/va_drmcommon.h>
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#include <fcntl.h>
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#include "va.h"
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#include "kmsvnc.h"
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extern struct kmsvnc_data *kmsvnc;
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void va_cleanup() {
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VAStatus s;
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if (kmsvnc->va) {
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if (kmsvnc->va->imgbuf) {
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VA_MAY(vaUnmapBuffer(kmsvnc->va->dpy, kmsvnc->va->image->buf));
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kmsvnc->va->imgbuf = NULL;
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}
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if (kmsvnc->va->image) {
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if ((s = vaDestroyImage(kmsvnc->va->dpy, kmsvnc->va->image->image_id)) == VA_STATUS_SUCCESS) {
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free(kmsvnc->va->image);
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}
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VA_MAY(s);
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kmsvnc->va->image = NULL;
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}
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if (kmsvnc->va->surface_id > 0) {
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VA_MAY(vaDestroySurfaces(kmsvnc->va->dpy, &kmsvnc->va->surface_id, 1));
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kmsvnc->va->surface_id = 0;
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}
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if (kmsvnc->va->dpy) {
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VA_MAY(vaTerminate(kmsvnc->va->dpy));
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kmsvnc->va->dpy = NULL;
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}
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free(kmsvnc->va);
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kmsvnc->va = NULL;
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}
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}
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static void va_msg_callback(void *user_context, const char *message) {
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#ifdef KMSVNC_VA_DEBUG
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printf("va msg: %s");
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#endif
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}
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static void va_error_callback(void *user_context, const char *message) {
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printf("va error: %s");
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}
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static char* fourcc_to_str(int fourcc) {
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static char ret[5];
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ret[4] = 0;
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for (int i = 0; i < 4; i++) {
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ret[i] = fourcc >> 8*i & 0xff;
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}
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return ret;
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}
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static void print_va_image_fmt(VAImageFormat *fmt) {
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printf("image fmt: fourcc %d, %s, byte_order %s, bpp %d, depth %d, blue_mask %#x, green_mask %#x, red_mask %#x, reserved %#x\n", fmt->fourcc,
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fourcc_to_str(fmt->fourcc),
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fmt->byte_order == 1 ? "VA_LSB_FIRST" : "VA_MSB_FIRST",
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fmt->bits_per_pixel,
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fmt->depth,
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fmt->blue_mask,
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fmt->green_mask,
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fmt->red_mask,
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fmt->va_reserved
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);
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}
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int va_init() {
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if (!kmsvnc->drm || !kmsvnc->drm->drm_fd || !kmsvnc->drm->prime_fd) {
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KMSVNC_FATAL("drm is not initialized\n");
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}
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setenv("DISPLAY", "", 1);
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struct kmsvnc_va_data *va = malloc(sizeof(struct kmsvnc_va_data));
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if (!va) KMSVNC_FATAL("memory allocation error at %s:%d\n", __FILE__, __LINE__);
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memset(va, 0, sizeof(struct kmsvnc_va_data));
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kmsvnc->va = va;
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char* render_node;
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int effective_fd = 0;
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if (render_node = drmGetRenderDeviceNameFromFd(kmsvnc->drm->drm_fd)) {
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va->render_node_fd = open(render_node, O_RDWR);
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free(render_node);
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}
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else {
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printf("Using non-render node because the device does not have an associated render node.\n");
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}
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if (va->render_node_fd > 0) {
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effective_fd = va->render_node_fd;
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}
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else {
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printf("Using non-render node because render node fails to open.\n");
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effective_fd = kmsvnc->drm->drm_fd;
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}
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va->dpy = vaGetDisplayDRM(effective_fd);
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if (!va->dpy) {
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KMSVNC_FATAL("vaGetDisplayDRM failed\n");
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}
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vaSetErrorCallback(va->dpy, &va_error_callback, NULL);
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vaSetInfoCallback(va->dpy, &va_msg_callback, NULL);
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int major, minor;
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VAStatus status;
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VA_MUST(vaInitialize(va->dpy, &major, &minor));
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const char *vendor_string = vaQueryVendorString(va->dpy);
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printf("vaapi vendor %s\n", vendor_string);
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VADRMPRIMESurfaceDescriptor prime_desc;
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VASurfaceAttrib prime_attrs[2] = {
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{
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.type = VASurfaceAttribMemoryType,
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.flags = VA_SURFACE_ATTRIB_SETTABLE,
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.value.type = VAGenericValueTypeInteger,
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.value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2,
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},
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{
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.type = VASurfaceAttribExternalBufferDescriptor,
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.flags = VA_SURFACE_ATTRIB_SETTABLE,
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.value.type = VAGenericValueTypePointer,
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.value.value.p = &prime_desc,
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}
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};
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char is_alpha = kmsvnc->drm->mfb->pixel_format != KMSVNC_FOURCC_TO_INT('X', 'R', '2', '4');
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prime_desc.fourcc = kmsvnc->drm->mfb->pixel_format == is_alpha ?
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KMSVNC_FOURCC_TO_INT('B', 'G', 'R', 'A') :
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KMSVNC_FOURCC_TO_INT('B', 'G', 'R', 'X') ;
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prime_desc.width = kmsvnc->drm->mfb->width;
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prime_desc.height = kmsvnc->drm->mfb->height;
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int i;
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int max_size = 0;
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for (i = 0; i < 4; i++) {
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int size = kmsvnc->drm->mfb->offsets[i] + kmsvnc->drm->mfb->height * kmsvnc->drm->mfb->pitches[i];
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if (size > max_size) max_size = size;
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}
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for (i = 0; i < 4; i++) {
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prime_desc.objects[i].fd = kmsvnc->drm->prime_fd;
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prime_desc.objects[i].size = max_size;
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prime_desc.objects[i].drm_format_modifier = kmsvnc->drm->mfb->modifier;
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}
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prime_desc.num_layers = 1;
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prime_desc.layers[0].drm_format = kmsvnc->drm->mfb->pixel_format;
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for (i = 0; i < 4; i++) {
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prime_desc.layers[0].object_index[i] = 0;
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prime_desc.layers[0].offset[i] = kmsvnc->drm->mfb->offsets[i];
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prime_desc.layers[0].pitch[i] = kmsvnc->drm->mfb->pitches[i];
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}
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for (i = 0; i < 4; i++) {
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if (!kmsvnc->drm->mfb->handles[i]) {
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break;
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}
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}
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prime_desc.layers[0].num_planes = i;
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prime_desc.num_objects = 1;
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VAStatus s;
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if ((s = vaCreateSurfaces(va->dpy, VA_RT_FORMAT_RGB32,
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kmsvnc->drm->mfb->width, kmsvnc->drm->mfb->height, &va->surface_id, 1,
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prime_attrs, KMSVNC_ARRAY_ELEMENTS(prime_attrs))) != VA_STATUS_SUCCESS)
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{
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printf("vaCreateSurfaces prime2 error %#x %s, trying prime\n", s, vaErrorStr(s));
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VASurfaceAttribExternalBuffers buffer_desc;
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VASurfaceAttrib buffer_attrs[2] = {
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{
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.type = VASurfaceAttribMemoryType,
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.flags = VA_SURFACE_ATTRIB_SETTABLE,
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.value.type = VAGenericValueTypeInteger,
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.value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME,
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},
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{
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.type = VASurfaceAttribExternalBufferDescriptor,
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.flags = VA_SURFACE_ATTRIB_SETTABLE,
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.value.type = VAGenericValueTypePointer,
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.value.value.p = &buffer_desc,
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}
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};
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unsigned long fd = kmsvnc->drm->prime_fd;
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buffer_desc.pixel_format = prime_desc.fourcc;
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buffer_desc.width = kmsvnc->drm->mfb->width;
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buffer_desc.height = kmsvnc->drm->mfb->height;
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buffer_desc.data_size = max_size;
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buffer_desc.buffers = &fd;
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buffer_desc.num_buffers = 1;
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buffer_desc.flags = 0;
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for (i = 0; i < 4; i++) {
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buffer_desc.pitches[i] = kmsvnc->drm->mfb->pitches[i];
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buffer_desc.offsets[i] = kmsvnc->drm->mfb->offsets[i];
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}
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buffer_desc.num_planes = prime_desc.layers[0].num_planes;
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VA_MUST(vaCreateSurfaces(va->dpy, VA_RT_FORMAT_RGB32,
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kmsvnc->drm->mfb->width, kmsvnc->drm->mfb->height, &va->surface_id, 1,
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buffer_attrs, KMSVNC_ARRAY_ELEMENTS(buffer_attrs)));
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}
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#ifdef KMSVNC_VA_DEBUG
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int img_fmt_count = vaMaxNumImageFormats(va->dpy);
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VAImageFormat *img_fmts = malloc(sizeof(VAImageFormat) * img_fmt_count);
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if (!img_fmts) KMSVNC_FATAL("memory allocation error at %s:%d\n", __FILE__, __LINE__);
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{
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int got;
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vaQueryImageFormats(va->dpy, img_fmts, &got);
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if (got != img_fmt_count) {
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KMSVNC_FATAL("got less VAImageFormats, %d instead of %d\n", got, img_fmt_count);
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}
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}
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for (int i = 0; i < img_fmt_count; i++) {
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print_va_image_fmt(img_fmts + i);
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}
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#endif
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VAImageFormat fmt_rgbx = {
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.fourcc = KMSVNC_FOURCC_TO_INT('R','G','B','X'),
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.byte_order = VA_LSB_FIRST,
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.bits_per_pixel = 32,
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.depth = 24,
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.blue_mask = 0x0000ff00,
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.green_mask = 0x00ff0000,
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.red_mask = 0xff000000,
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.va_reserved = 0x00000000,
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};
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VAImageFormat fmt_bgrx = {
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.fourcc = KMSVNC_FOURCC_TO_INT('B','G','R','X'),
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.byte_order = VA_LSB_FIRST,
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.bits_per_pixel = 32,
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.depth = 24,
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.blue_mask = 0xff000000,
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.green_mask = 0x00ff0000,
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.red_mask = 0x0000ff00,
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.va_reserved = 0x00000000,
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};
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VAImageFormat fmt_xrgb = {
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.fourcc = KMSVNC_FOURCC_TO_INT('X','R','G','B'),
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.byte_order = VA_LSB_FIRST,
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.bits_per_pixel = 32,
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.depth = 24,
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.blue_mask = 0x000000ff,
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.green_mask = 0x0000ff00,
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.red_mask = 0x00ff0000,
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.va_reserved = 0x00000000,
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};
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VAImageFormat fmt_xbgr = {
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.fourcc = KMSVNC_FOURCC_TO_INT('X','B','G','R'),
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.byte_order = VA_LSB_FIRST,
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.bits_per_pixel = 32,
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.depth = 24,
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.blue_mask = 0x00ff0000,
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.green_mask = 0x0000ff00,
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.red_mask = 0x000000ff,
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.va_reserved = 0x00000000,
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};
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va->image = malloc(sizeof(VAImage));
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if (!va->image) KMSVNC_FATAL("memory allocation error at %s:%d\n", __FILE__, __LINE__);
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struct fourcc_data {
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VAImageFormat *fmt;
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char is_alpha;
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int fourcc;
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char is_bgr;
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char is_xrgb;
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};
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struct fourcc_data format_to_try[] = {
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{&fmt_rgbx, 0, KMSVNC_FOURCC_TO_INT('R','G','B','X'), 0, 0},
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{&fmt_rgbx, 1, KMSVNC_FOURCC_TO_INT('R','G','B','A'), 0, 0},
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{&fmt_xrgb, 0, KMSVNC_FOURCC_TO_INT('X','R','G','B'), 0, 1},
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{&fmt_xrgb, 1, KMSVNC_FOURCC_TO_INT('A','R','G','B'), 0, 1},
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{&fmt_bgrx, 0, KMSVNC_FOURCC_TO_INT('B','G','R','X'), 1, 0},
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{&fmt_bgrx, 1, KMSVNC_FOURCC_TO_INT('B','G','R','A'), 1, 0},
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{&fmt_xbgr, 0, KMSVNC_FOURCC_TO_INT('X','B','G','R'), 1, 1},
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{&fmt_xbgr, 1, KMSVNC_FOURCC_TO_INT('A','B','G','R'), 1, 1},
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};
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va->derive_enabled = strcmp(kmsvnc->drm->drm_ver->name, "i915") != 0;
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va->derive_enabled = kmsvnc->va_derive_enabled < 0 ? va->derive_enabled : kmsvnc->va_derive_enabled != 0;
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if (va->derive_enabled) {
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if ((s = vaDeriveImage(va->dpy, va->surface_id, va->image)) == VA_STATUS_SUCCESS) {
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switch (va->image->format.fourcc) {
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case KMSVNC_FOURCC_TO_INT('B','G','R','X'):
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case KMSVNC_FOURCC_TO_INT('B','G','R','A'):
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va->is_bgr = 1;
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break;
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case KMSVNC_FOURCC_TO_INT('R','G','B','X'):
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case KMSVNC_FOURCC_TO_INT('R','G','B','A'):
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break;
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case KMSVNC_FOURCC_TO_INT('X','R','G','B'):
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va->is_xrgb = 1;
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break;
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case KMSVNC_FOURCC_TO_INT('X','B','G','R'):
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va->is_bgr = 1;
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va->is_xrgb = 1;
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break;
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default:
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va->derive_enabled = 0;
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printf("vaDeriveImage returned unknown fourcc %d %s\n", va->image->format.fourcc, fourcc_to_str(va->image->format.fourcc));
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VA_MUST(vaDestroyImage(kmsvnc->va->dpy, kmsvnc->va->image->image_id));
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}
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}
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VA_MAY(s);
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}
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if (va->derive_enabled) {
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if ((s = vaMapBuffer(va->dpy, va->image->buf, (void**)&va->imgbuf)) != VA_STATUS_SUCCESS) {
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VA_MAY(s);
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VA_MAY(vaDestroyImage(kmsvnc->va->dpy, kmsvnc->va->image->image_id));
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va->derive_enabled = 0;
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}
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}
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if (!va->derive_enabled) {
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char success = 0;
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for (int i = 0; i < KMSVNC_ARRAY_ELEMENTS(format_to_try); i++) {
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if (is_alpha != format_to_try[i].is_alpha) continue;
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VAImageFormat *fmt = format_to_try[i].fmt;
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va->is_bgr = format_to_try[i].is_bgr;
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va->is_xrgb = format_to_try[i].is_xrgb;
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fmt->fourcc = format_to_try[i].fourcc;
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if ((s = vaCreateImage(va->dpy, fmt, kmsvnc->drm->mfb->width, kmsvnc->drm->mfb->height, va->image)) != VA_STATUS_SUCCESS) {
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VA_MAY(s);
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continue;
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}
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if ((s = vaMapBuffer(va->dpy, va->image->buf, (void**)&va->imgbuf)) != VA_STATUS_SUCCESS) {
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VA_MAY(s);
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VA_MAY(vaDestroyImage(kmsvnc->va->dpy, kmsvnc->va->image->image_id));
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continue;
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}
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if ((s = vaGetImage(kmsvnc->va->dpy, kmsvnc->va->surface_id, 0, 0,
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kmsvnc->drm->mfb->width, kmsvnc->drm->mfb->height,
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kmsvnc->va->image->image_id)) != VA_STATUS_SUCCESS)
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{
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VA_MAY(s);
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VA_MAY(vaUnmapBuffer(kmsvnc->va->dpy, kmsvnc->va->image->buf));
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VA_MAY(vaDestroyImage(kmsvnc->va->dpy, kmsvnc->va->image->image_id));
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continue;
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}
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else {
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success = 1;
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break;
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}
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}
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if (!success) {
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va->imgbuf = NULL;
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KMSVNC_FATAL("failed to get vaapi image\n");
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}
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}
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printf("vaapi %simage fourcc isbgr %hd isxrgb %hd\n", va->derive_enabled ? "derive " : "", va->is_bgr, va->is_xrgb);
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print_va_image_fmt(&va->image->format);
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return 0;
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}
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int va_hwframe_to_vaapi(char *out) {
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if (!kmsvnc->va->derive_enabled) {
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VA_MUST(vaGetImage(kmsvnc->va->dpy, kmsvnc->va->surface_id, 0, 0,
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kmsvnc->drm->mfb->width, kmsvnc->drm->mfb->height, kmsvnc->va->image->image_id));
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}
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memcpy(out, kmsvnc->va->imgbuf, kmsvnc->drm->mfb->width * kmsvnc->drm->mfb->height * BYTES_PER_PIXEL);
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}
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