va: use a compute shader for the blit

Signed-off-by: Sonny Jiang <[email protected]>
Signed-off-by: Marek Olšák <[email protected]>

7 files changed, 224 insertions, 1 deletions

diff --git a/src/gallium/auxiliary/Makefile.sources b/src/gallium/auxiliary/Makefile.sources
index ae0c8f39e27..f9c0b536026 100644
--- a/src/gallium/auxiliary/Makefile.sources
+++ b/src/gallium/auxiliary/Makefile.sources
@@ -214,6 +214,8 @@ C_SOURCES := \
 	util/u_box.h \
 	util/u_cache.c \
 	util/u_cache.h \
+	util/u_compute.c \
+	util/u_compute.h \
 	util/u_debug_gallium.h \
 	util/u_debug_gallium.c \
 	util/u_debug_describe.c \
diff --git a/src/gallium/auxiliary/meson.build b/src/gallium/auxiliary/meson.build
index a47b2f4a9b6..e76b2ac912e 100644
--- a/src/gallium/auxiliary/meson.build
+++ b/src/gallium/auxiliary/meson.build
@@ -234,6 +234,8 @@ files_libgallium = files(
   'util/u_box.h',
   'util/u_cache.c',
   'util/u_cache.h',
+  'util/u_compute.c',
+  'util/u_compute.h',
   'util/u_debug_gallium.h',
   'util/u_debug_gallium.c',
   'util/u_debug_describe.c',
diff --git a/src/gallium/auxiliary/util/u_compute.c b/src/gallium/auxiliary/util/u_compute.c
new file mode 100644
index 00000000000..e1e24a28c2a
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_compute.c
@@ -0,0 +1,166 @@
+/**************************************************************************
+ *
+ * Copyright 2019 Sonny Jiang <[email protected]>
+ * Copyright 2019 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 VMWARE AND/OR ITS SUPPLIERS 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 "pipe/p_context.h"
+#include "pipe/p_state.h"
+
+#include "u_bitcast.h"
+#include "u_format.h"
+#include "u_sampler.h"
+#include "tgsi/tgsi_text.h"
+#include "tgsi/tgsi_ureg.h"
+#include "u_inlines.h"
+#include "u_compute.h"
+
+static void *blit_compute_shader(struct pipe_context *ctx)
+{
+   static const char text[] =
+      "COMP\n"
+      "PROPERTY CS_FIXED_BLOCK_WIDTH 64\n"
+      "PROPERTY CS_FIXED_BLOCK_HEIGHT 1\n"
+      "PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
+      "DCL SV[0], THREAD_ID\n"
+      "DCL SV[1], BLOCK_ID\n"
+      "DCL IMAGE[0], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
+      "DCL SAMP[0]\n"
+      "DCL SVIEW[0], 2D_ARRAY, FLOAT\n"
+      "DCL CONST[0][0..2]\n" // 0:xyzw 1:xyzw
+      "DCL TEMP[0..4], LOCAL\n"
+      "IMM[0] UINT32 {64, 1, 0, 0}\n"
+
+      "UMAD TEMP[0].xyz, SV[1].xyzz, IMM[0].xyyy, SV[0].xyzz\n"
+      "U2F TEMP[1].xyz, TEMP[0]\n"
+      "MAD TEMP[2].xyz, TEMP[1], CONST[0][1], CONST[0][0]\n"
+      "TEX_LZ TEMP[3], TEMP[2], SAMP[0], 2D_ARRAY\n"
+      "UADD TEMP[4].xyz, TEMP[0], CONST[0][2]\n"
+      "STORE IMAGE[0], TEMP[4], TEMP[3], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
+      "END\n";
+
+   struct tgsi_token tokens[1024];
+   struct pipe_compute_state state = {0};
+
+   if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
+      assert(false);
+      return NULL;
+   }
+
+   state.ir_type = PIPE_SHADER_IR_TGSI;
+   state.prog = tokens;
+
+   return ctx->create_compute_state(ctx, &state);
+}
+
+void util_compute_blit(struct pipe_context *ctx, struct pipe_blit_info *blit_info,
+                       void **compute_state)
+{
+   if (blit_info->src.box.width == 0 || blit_info->src.box.height == 0 ||
+       blit_info->dst.box.width == 0 || blit_info->dst.box.height == 0)
+     return;
+
+   struct pipe_resource *src = blit_info->src.resource;
+   struct pipe_resource *dst = blit_info->dst.resource;
+   struct pipe_sampler_view src_templ = {0}, *src_view;
+   void *sampler_state_p;
+   unsigned width = blit_info->dst.box.width;
+   unsigned height = blit_info->dst.box.height;
+   float x_scale = blit_info->src.box.width / (float)blit_info->dst.box.width;
+   float y_scale = blit_info->src.box.height / (float)blit_info->dst.box.height;
+   float z_scale = blit_info->src.box.depth / (float)blit_info->dst.box.depth;
+
+   unsigned data[] = {u_bitcast_f2u((blit_info->src.box.x + 0.5) / (float)src->width0),
+                      u_bitcast_f2u((blit_info->src.box.y + 0.5) / (float)src->height0),
+                      u_bitcast_f2u(blit_info->src.box.z),
+                      u_bitcast_f2u(0),
+                      u_bitcast_f2u(x_scale / src->width0),
+                      u_bitcast_f2u(y_scale / src->height0),
+                      u_bitcast_f2u(z_scale),
+                      u_bitcast_f2u(0),
+                      blit_info->dst.box.x,
+                      blit_info->dst.box.y,
+                      blit_info->dst.box.z,
+                      0};
+
+   struct pipe_constant_buffer cb = {};
+   cb.buffer_size = sizeof(data);
+   cb.user_buffer = data;
+   ctx->set_constant_buffer(ctx, PIPE_SHADER_COMPUTE, 0, &cb);
+
+   struct pipe_image_view image = {0};
+   image.resource = dst;
+   image.shader_access = image.access = PIPE_IMAGE_ACCESS_WRITE;
+   image.format = util_format_linear(blit_info->dst.format);
+   image.u.tex.level = blit_info->dst.level;
+   image.u.tex.first_layer = 0;
+   image.u.tex.last_layer = (unsigned)(dst->array_size - 1);
+
+   ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 1, &image);
+
+   /* Initialize the sampler view. */
+   u_sampler_view_default_template(&src_templ, src, src->format);
+   src_templ.format = util_format_linear(blit_info->src.format);
+   src_view = ctx->create_sampler_view(ctx, src, &src_templ);
+   ctx->set_sampler_views(ctx, PIPE_SHADER_COMPUTE, 0, 1, &src_view);
+
+   struct pipe_sampler_state sampler_state={0};
+   sampler_state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   sampler_state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   sampler_state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   sampler_state.normalized_coords = 1;
+
+   if (blit_info->filter == PIPE_TEX_FILTER_LINEAR) {
+      sampler_state.min_img_filter = PIPE_TEX_FILTER_LINEAR;
+      sampler_state.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
+   }
+
+   sampler_state_p = ctx->create_sampler_state(ctx, &sampler_state);
+   ctx->bind_sampler_states(ctx, PIPE_SHADER_COMPUTE, 0, 1, &sampler_state_p);
+
+   if (!*compute_state)
+     *compute_state = blit_compute_shader(ctx);
+   ctx->bind_compute_state(ctx, *compute_state);
+
+   struct pipe_grid_info grid_info = {0};
+   grid_info.block[0] = 64;
+   grid_info.last_block[0] = width % 64;
+   grid_info.block[1] = 1;
+   grid_info.block[2] = 1;
+   grid_info.grid[0] = DIV_ROUND_UP(width, 64);
+   grid_info.grid[1] = height;
+   grid_info.grid[2] = 1;
+
+   ctx->launch_grid(ctx, &grid_info);
+
+   ctx->memory_barrier(ctx, PIPE_BARRIER_ALL);
+
+   ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 1, NULL);
+   ctx->set_constant_buffer(ctx, PIPE_SHADER_COMPUTE, 0, NULL);
+   ctx->set_sampler_views(ctx, PIPE_SHADER_COMPUTE, 0, 1, NULL);
+   pipe_sampler_view_reference(&src_view, NULL);
+   ctx->delete_sampler_state(ctx, sampler_state_p);
+   ctx->bind_compute_state(ctx, NULL);
+}
diff --git a/src/gallium/auxiliary/util/u_compute.h b/src/gallium/auxiliary/util/u_compute.h
new file mode 100644
index 00000000000..8c2866af8d4
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_compute.h
@@ -0,0 +1,45 @@
+/**************************************************************************
+ * Copyright 2019 Sonny Jiang <[email protected]>
+ * Copyright 2019 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 VMWARE AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+#ifndef U_COMPUTE_H
+#define U_COMPUTE_H
+
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void util_compute_blit(struct pipe_context *ctx, struct pipe_blit_info *blit_info,
+                       void **compute_state);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/src/gallium/state_trackers/va/context.c b/src/gallium/state_trackers/va/context.c
index 47a5e7be230..9176b7e8c5d 100644
--- a/src/gallium/state_trackers/va/context.c
+++ b/src/gallium/state_trackers/va/context.c
@@ -364,6 +364,8 @@ vlVaDestroyContext(VADriverContextP ctx, VAContextID context_id)
       }
       context->decoder->destroy(context->decoder);
    }
+   if (context->blit_cs)
+      drv->pipe->delete_compute_state(drv->pipe, context->blit_cs);
    if (context->deint) {
       vl_deint_filter_cleanup(context->deint);
       FREE(context->deint);
diff --git a/src/gallium/state_trackers/va/postproc.c b/src/gallium/state_trackers/va/postproc.c
index 21d316c7e97..fbc55b7714b 100644
--- a/src/gallium/state_trackers/va/postproc.c
+++ b/src/gallium/state_trackers/va/postproc.c
@@ -27,6 +27,7 @@
 
 #include "util/u_handle_table.h"
 #include "util/u_memory.h"
+#include "util/u_compute.h"
 
 #include "vl/vl_defines.h"
 #include "vl/vl_video_buffer.h"
@@ -220,7 +221,11 @@ static VAStatus vlVaPostProcBlit(vlVaDriver *drv, vlVaContext *context,
       blit.mask = PIPE_MASK_RGBA;
       blit.filter = PIPE_TEX_MIPFILTER_LINEAR;
 
-      drv->pipe->blit(drv->pipe, &blit);
+      if (drv->pipe->screen->get_param(drv->pipe->screen,
+                                       PIPE_CAP_PREFER_COMPUTE_BLIT_FOR_MULTIMEDIA))
+         util_compute_blit(drv->pipe, &blit, &context->blit_cs);
+      else
+         drv->pipe->blit(drv->pipe, &blit);
    }
 
    // TODO: figure out why this is necessary for DMA-buf sharing
diff --git a/src/gallium/state_trackers/va/va_private.h b/src/gallium/state_trackers/va/va_private.h
index c4b49e30509..b2b997d4799 100644
--- a/src/gallium/state_trackers/va/va_private.h
+++ b/src/gallium/state_trackers/va/va_private.h
@@ -312,6 +312,7 @@ typedef struct {
    bool first_single_submitted;
    int gop_coeff;
    bool needs_begin_frame;
+   void *blit_cs;
 } vlVaContext;
 
 typedef struct {