Implement UVD hevc encode functions

Signed-off-by: James Zhu <james....@amd.com>
---
 src/gallium/drivers/radeon/radeon_uvd_enc.c | 340 ++++++++++++++++++++++++++++
 1 file changed, 340 insertions(+)
 create mode 100644 src/gallium/drivers/radeon/radeon_uvd_enc.c

diff --git a/src/gallium/drivers/radeon/radeon_uvd_enc.c 
b/src/gallium/drivers/radeon/radeon_uvd_enc.c
new file mode 100644
index 0000000..6eb6cda
--- /dev/null
+++ b/src/gallium/drivers/radeon/radeon_uvd_enc.c
@@ -0,0 +1,340 @@
+/**************************************************************************
+ *
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <stdio.h>
+
+#include "pipe/p_video_codec.h"
+
+#include "util/u_video.h"
+#include "util/u_memory.h"
+
+#include "vl/vl_video_buffer.h"
+
+#include "radeonsi/si_pipe.h"
+#include "radeon_video.h"
+#include "radeon_uvd_enc.h"
+
+static void radeon_uvd_enc_get_param(struct radeon_uvd_encoder *enc, struct 
pipe_h265_enc_picture_desc *picture)
+{
+      struct pipe_h265_enc_picture_desc *pic = (struct 
pipe_h265_enc_picture_desc *)picture;
+      enc->enc_pic.picture_type = pic->picture_type;
+      enc->enc_pic.frame_num = pic->frame_num;
+      enc->enc_pic.pic_order_cnt = pic->pic_order_cnt;
+      enc->enc_pic.pic_order_cnt_type = pic->pic_order_cnt_type;
+      enc->enc_pic.ref_idx_l0 = pic->ref_idx_l0;
+      enc->enc_pic.ref_idx_l1 = pic->ref_idx_l1;
+      enc->enc_pic.not_referenced = pic->not_referenced;
+      enc->enc_pic.is_idr = (pic->picture_type == 
PIPE_H265_ENC_PICTURE_TYPE_IDR) ||
+                            (pic->picture_type == 
PIPE_H265_ENC_PICTURE_TYPE_I);
+      enc->enc_pic.crop_left = 0;
+      enc->enc_pic.crop_right = (align(enc->base.width, 16) - enc->base.width) 
/ 2;
+      enc->enc_pic.crop_top = 0;
+      enc->enc_pic.crop_bottom = (align(enc->base.height, 16) - 
enc->base.height) / 2;
+      enc->enc_pic.general_tier_flag = pic->seq.general_tier_flag;
+      enc->enc_pic.general_profile_idc = pic->seq.general_profile_idc;
+      enc->enc_pic.general_level_idc = pic->seq.general_level_idc;
+      enc->enc_pic.max_poc = pic->seq.intra_period;
+      enc->enc_pic.log2_max_poc = 0;
+      for (int i = enc->enc_pic.max_poc; i != 0; enc->enc_pic.log2_max_poc++)
+         i = (i >> 1);
+      enc->enc_pic.chroma_format_idc = pic->seq.chroma_format_idc;
+      enc->enc_pic.pic_width_in_luma_samples = 
pic->seq.pic_width_in_luma_samples;
+      enc->enc_pic.pic_height_in_luma_samples = 
pic->seq.pic_height_in_luma_samples;
+      enc->enc_pic.log2_diff_max_min_luma_coding_block_size = 
pic->seq.log2_diff_max_min_luma_coding_block_size;
+      enc->enc_pic.log2_min_transform_block_size_minus2 = 
pic->seq.log2_min_transform_block_size_minus2;
+      enc->enc_pic.log2_diff_max_min_transform_block_size = 
pic->seq.log2_diff_max_min_transform_block_size;
+      enc->enc_pic.max_transform_hierarchy_depth_inter = 
pic->seq.max_transform_hierarchy_depth_inter;
+      enc->enc_pic.max_transform_hierarchy_depth_intra = 
pic->seq.max_transform_hierarchy_depth_intra;
+      enc->enc_pic.log2_parallel_merge_level_minus2 = 
pic->pic.log2_parallel_merge_level_minus2;
+      enc->enc_pic.bit_depth_luma_minus8 = pic->seq.bit_depth_luma_minus8;
+      enc->enc_pic.bit_depth_chroma_minus8 = pic->seq.bit_depth_chroma_minus8;
+      enc->enc_pic.nal_unit_type = pic->pic.nal_unit_type;
+      enc->enc_pic.max_num_merge_cand = pic->slice.max_num_merge_cand;
+      enc->enc_pic.sample_adaptive_offset_enabled_flag = 
pic->seq.sample_adaptive_offset_enabled_flag;
+      enc->enc_pic.pcm_enabled_flag = pic->seq.pcm_enabled_flag;
+      enc->enc_pic.sps_temporal_mvp_enabled_flag = 
pic->seq.sps_temporal_mvp_enabled_flag;
+}
+
+static void flush(struct radeon_uvd_encoder *enc)
+{
+       enc->ws->cs_flush(enc->cs, PIPE_FLUSH_ASYNC, NULL);
+}
+
+static void radeon_uvd_enc_flush(struct pipe_video_codec *encoder)
+{
+       struct radeon_uvd_encoder *enc = (struct radeon_uvd_encoder*)encoder;
+       flush(enc);
+}
+
+static void radeon_uvd_enc_cs_flush(void *ctx, unsigned flags,
+                                                               struct 
pipe_fence_handle **fence)
+{
+       // just ignored
+}
+
+static unsigned get_cpb_num(struct radeon_uvd_encoder *enc)
+{
+       unsigned w = align(enc->base.width, 16) / 16;
+       unsigned h = align(enc->base.height, 16) / 16;
+       unsigned dpb;
+
+       switch (enc->base.level) {
+       case 10:
+               dpb = 396;
+               break;
+       case 11:
+               dpb = 900;
+               break;
+       case 12:
+       case 13:
+       case 20:
+               dpb = 2376;
+               break;
+       case 21:
+               dpb = 4752;
+               break;
+       case 22:
+       case 30:
+               dpb = 8100;
+               break;
+       case 31:
+               dpb = 18000;
+               break;
+       case 32:
+               dpb = 20480;
+               break;
+       case 40:
+       case 41:
+               dpb = 32768;
+               break;
+       case 42:
+               dpb = 34816;
+               break;
+       case 50:
+               dpb = 110400;
+               break;
+       default:
+       case 51:
+       case 52:
+               dpb = 184320;
+               break;
+       }
+
+       return MIN2(dpb / (w * h), 16);
+}
+
+static void radeon_uvd_enc_begin_frame(struct pipe_video_codec *encoder,
+                                                        struct 
pipe_video_buffer *source,
+                                                        struct 
pipe_picture_desc *picture)
+{
+       struct radeon_uvd_encoder *enc = (struct radeon_uvd_encoder*)encoder;
+       struct vl_video_buffer *vid_buf = (struct vl_video_buffer *)source;
+
+       radeon_uvd_enc_get_param(enc, (struct pipe_h265_enc_picture_desc 
*)picture);
+
+       enc->get_buffer(vid_buf->resources[0], &enc->handle, &enc->luma);
+       enc->get_buffer(vid_buf->resources[1], NULL, &enc->chroma);
+
+       enc->need_feedback = false;
+
+       if (!enc->stream_handle) {
+               struct rvid_buffer fb;
+               enc->stream_handle = si_vid_alloc_stream_handle();
+               enc->si = CALLOC_STRUCT(rvid_buffer);
+               si_vid_create_buffer(enc->screen, enc->si, 128 * 1024, 
PIPE_USAGE_STAGING);
+               si_vid_create_buffer(enc->screen, &fb, 4096, 
PIPE_USAGE_STAGING);
+               enc->fb = &fb;
+               enc->begin(enc, picture);
+               flush(enc);
+               si_vid_destroy_buffer(&fb);
+       }
+}
+
+static void radeon_uvd_enc_encode_bitstream(struct pipe_video_codec *encoder,
+                                                                 struct 
pipe_video_buffer *source,
+                                                                 struct 
pipe_resource *destination,
+                                                                 void **fb)
+{
+       struct radeon_uvd_encoder *enc = (struct radeon_uvd_encoder*)encoder;
+       enc->get_buffer(destination, &enc->bs_handle, NULL);
+       enc->bs_size = destination->width0;
+
+       *fb = enc->fb = CALLOC_STRUCT(rvid_buffer);
+
+       if (!si_vid_create_buffer(enc->screen, enc->fb, 4096, 
PIPE_USAGE_STAGING)) {
+               RVID_ERR("Can't create feedback buffer.\n");
+               return;
+       }
+
+       enc->need_feedback = true;
+       enc->encode(enc);
+}
+
+static void radeon_uvd_enc_end_frame(struct pipe_video_codec *encoder,
+                                                  struct pipe_video_buffer 
*source,
+                                                  struct pipe_picture_desc 
*picture)
+{
+       struct radeon_uvd_encoder *enc = (struct radeon_uvd_encoder*)encoder;
+       flush(enc);
+}
+
+static void radeon_uvd_enc_destroy(struct pipe_video_codec *encoder)
+{
+       struct radeon_uvd_encoder *enc = (struct radeon_uvd_encoder*)encoder;
+
+       if (enc->stream_handle) {
+               struct rvid_buffer fb;
+               enc->need_feedback = false;
+               si_vid_create_buffer(enc->screen, &fb, 512, PIPE_USAGE_STAGING);
+               enc->fb = &fb;
+               enc->destroy(enc);
+               flush(enc);
+               si_vid_destroy_buffer(&fb);
+       }
+
+       si_vid_destroy_buffer(&enc->cpb);
+       enc->ws->cs_destroy(enc->cs);
+       FREE(enc);
+}
+
+static void radeon_uvd_enc_get_feedback(struct pipe_video_codec *encoder,
+                                                         void *feedback, 
unsigned *size)
+{
+       struct radeon_uvd_encoder *enc = (struct radeon_uvd_encoder*)encoder;
+       struct rvid_buffer *fb = feedback;
+
+       if (NULL != size) {
+               radeon_uvd_enc_feedback_t *fb_data = (radeon_uvd_enc_feedback_t 
*)enc->ws->buffer_map(fb->res->buf, enc->cs, PIPE_TRANSFER_READ_WRITE);
+
+               if (!fb_data->status) {
+                       *size = fb_data->bitstream_size;
+               }
+               else
+                       *size = 0;
+               enc->ws->buffer_unmap(fb->res->buf);
+       }
+
+       si_vid_destroy_buffer(fb);
+       FREE(fb);
+}
+
+struct pipe_video_codec *radeon_uvd_create_encoder(struct pipe_context 
*context,
+               const struct pipe_video_codec *templ,
+               struct radeon_winsys* ws,
+               radeon_uvd_enc_get_buffer get_buffer)
+{
+       struct si_screen *sscreen = (struct si_screen *)context->screen;
+       struct r600_common_context *rctx = (struct r600_common_context*)context;
+       struct radeon_uvd_encoder *enc;
+       struct pipe_video_buffer *tmp_buf, templat = {};
+       struct radeon_surf *tmp_surf;
+       unsigned cpb_size;
+
+       if (!si_radeon_uvd_enc_supported(sscreen)) {
+               RVID_ERR("Unsupported UVD ENC fw version loaded!\n");
+               return NULL;
+       }
+
+       enc = CALLOC_STRUCT(radeon_uvd_encoder);
+
+       if (!enc)
+               return NULL;
+
+       enc->base = *templ;
+       enc->base.context = context;
+       enc->base.destroy = radeon_uvd_enc_destroy;
+       enc->base.begin_frame = radeon_uvd_enc_begin_frame;
+       enc->base.encode_bitstream = radeon_uvd_enc_encode_bitstream;
+       enc->base.end_frame = radeon_uvd_enc_end_frame;
+       enc->base.flush = radeon_uvd_enc_flush;
+       enc->base.get_feedback = radeon_uvd_enc_get_feedback;
+       enc->get_buffer = get_buffer;
+       enc->bits_in_shifter = 0;
+       enc->screen = context->screen;
+       enc->ws = ws;
+       enc->cs = ws->cs_create(rctx->ctx, RING_UVD_ENC, 
radeon_uvd_enc_cs_flush, enc);
+
+       if (!enc->cs) {
+               RVID_ERR("Can't get command submission context.\n");
+               goto error;
+       }
+
+       struct rvid_buffer si;
+       si_vid_create_buffer(enc->screen, &si, 128 * 1024, PIPE_USAGE_STAGING);
+       enc->si = &si;
+
+       templat.buffer_format = PIPE_FORMAT_NV12;
+       templat.chroma_format = PIPE_VIDEO_CHROMA_FORMAT_420;
+       templat.width = enc->base.width;
+       templat.height = enc->base.height;
+       templat.interlaced = false;
+
+       if (!(tmp_buf = context->create_video_buffer(context, &templat))) {
+               RVID_ERR("Can't create video buffer.\n");
+               goto error;
+       }
+
+       enc->cpb_num = get_cpb_num(enc);
+
+       if (!enc->cpb_num)
+               goto error;
+
+       get_buffer(((struct vl_video_buffer *)tmp_buf)->resources[0], NULL, 
&tmp_surf);
+
+       cpb_size = (sscreen->info.chip_class < GFX9) ?
+                          align(tmp_surf->u.legacy.level[0].nblk_x * 
tmp_surf->bpe, 128) *
+                          align(tmp_surf->u.legacy.level[0].nblk_y, 32) :
+                          align(tmp_surf->u.gfx9.surf_pitch * tmp_surf->bpe, 
256) *
+                          align(tmp_surf->u.gfx9.surf_height, 32);
+
+       cpb_size = cpb_size * 3 / 2;
+       cpb_size = cpb_size * enc->cpb_num;
+       tmp_buf->destroy(tmp_buf);
+
+       if (!si_vid_create_buffer(enc->screen, &enc->cpb, cpb_size, 
PIPE_USAGE_DEFAULT)) {
+               RVID_ERR("Can't create CPB buffer.\n");
+               goto error;
+       }
+
+       radeon_uvd_enc_1_1_init(enc);
+
+       return &enc->base;
+
+error:
+       if (enc->cs)
+               enc->ws->cs_destroy(enc->cs);
+
+       si_vid_destroy_buffer(&enc->cpb);
+
+       FREE(enc);
+       return NULL;
+}
+
+bool si_radeon_uvd_enc_supported(struct si_screen *sscreen)
+{
+       return (sscreen->info.uvd_enc_supported);
+}
-- 
2.7.4

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