/*
 * Copyright © 2016 Red Hat
 *
 * based on anv driver:
 * Copyright © 2016 Intel Corporation
 *
 * 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, sublicense,
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS 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 "radv_meta.h"
#include "nir/nir_builder.h"
#include "vk_format.h"

enum blit2d_src_type {
	BLIT2D_SRC_TYPE_IMAGE,
	BLIT2D_SRC_TYPE_IMAGE_3D,
	BLIT2D_SRC_TYPE_BUFFER,
	BLIT2D_NUM_SRC_TYPES,
};

static void
create_iview(struct radv_cmd_buffer *cmd_buffer,
             struct radv_meta_blit2d_surf *surf,
             struct radv_image_view *iview, VkFormat depth_format,
              VkImageAspectFlagBits aspects)
{
	VkFormat format;
	VkImageViewType view_type = cmd_buffer->device->physical_device->rad_info.chip_class < GFX9 ? VK_IMAGE_VIEW_TYPE_2D :
		radv_meta_get_view_type(surf->image);

	if (depth_format)
		format = depth_format;
	else
		format = surf->format;

	radv_image_view_init(iview, cmd_buffer->device,
			     &(VkImageViewCreateInfo) {
				     .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
					     .image = radv_image_to_handle(surf->image),
					     .viewType = view_type,
					     .format = format,
					     .subresourceRange = {
					     .aspectMask = aspects,
					     .baseMipLevel = surf->level,
					     .levelCount = 1,
					     .baseArrayLayer = surf->layer,
					     .layerCount = 1
				     },
			     });
}

static void
create_bview(struct radv_cmd_buffer *cmd_buffer,
	     struct radv_meta_blit2d_buffer *src,
	     struct radv_buffer_view *bview, VkFormat depth_format)
{
	VkFormat format;

	if (depth_format)
		format = depth_format;
	else
		format = src->format;
	radv_buffer_view_init(bview, cmd_buffer->device,
			      &(VkBufferViewCreateInfo) {
				      .sType = VK_STRUCTURE_TYPE_BUFFER_VIEW_CREATE_INFO,
				      .flags = 0,
				      .buffer = radv_buffer_to_handle(src->buffer),
				      .format = format,
				      .offset = src->offset,
				      .range = VK_WHOLE_SIZE,
			      });

}

struct blit2d_src_temps {
	struct radv_image_view iview;
	struct radv_buffer_view bview;
};

static void
blit2d_bind_src(struct radv_cmd_buffer *cmd_buffer,
                struct radv_meta_blit2d_surf *src_img,
                struct radv_meta_blit2d_buffer *src_buf,
                struct blit2d_src_temps *tmp,
                enum blit2d_src_type src_type, VkFormat depth_format,
                VkImageAspectFlagBits aspects,
                uint32_t log2_samples)
{
	struct radv_device *device = cmd_buffer->device;

	if (src_type == BLIT2D_SRC_TYPE_BUFFER) {
		create_bview(cmd_buffer, src_buf, &tmp->bview, depth_format);

		radv_meta_push_descriptor_set(cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS,
					      device->meta_state.blit2d[log2_samples].p_layouts[src_type],
					      0, /* set */
					      1, /* descriptorWriteCount */
					      (VkWriteDescriptorSet[]) {
					              {
					                      .sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
					                      .dstBinding = 0,
					                      .dstArrayElement = 0,
					                      .descriptorCount = 1,
					                      .descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER,
					                      .pTexelBufferView = (VkBufferView[])  { radv_buffer_view_to_handle(&tmp->bview) }
					              }
					      });

		radv_CmdPushConstants(radv_cmd_buffer_to_handle(cmd_buffer),
				      device->meta_state.blit2d[log2_samples].p_layouts[src_type],
				      VK_SHADER_STAGE_FRAGMENT_BIT, 16, 4,
				      &src_buf->pitch);
	} else {
		create_iview(cmd_buffer, src_img, &tmp->iview, depth_format, aspects);

		if (src_type == BLIT2D_SRC_TYPE_IMAGE_3D)
			radv_CmdPushConstants(radv_cmd_buffer_to_handle(cmd_buffer),
					      device->meta_state.blit2d[log2_samples].p_layouts[src_type],
					      VK_SHADER_STAGE_FRAGMENT_BIT, 16, 4,
					      &src_img->layer);

		radv_meta_push_descriptor_set(cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS,
					      device->meta_state.blit2d[log2_samples].p_layouts[src_type],
					      0, /* set */
					      1, /* descriptorWriteCount */
					      (VkWriteDescriptorSet[]) {
					              {
					                      .sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
					                      .dstBinding = 0,
					                      .dstArrayElement = 0,
					                      .descriptorCount = 1,
					                      .descriptorType = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE,
					                      .pImageInfo = (VkDescriptorImageInfo[]) {
					                              {
					                                      .sampler = VK_NULL_HANDLE,
					                                      .imageView = radv_image_view_to_handle(&tmp->iview),
					                                      .imageLayout = VK_IMAGE_LAYOUT_GENERAL,
					                              },
					                      }
					              }
					      });
	}
}

struct blit2d_dst_temps {
	VkImage image;
	struct radv_image_view iview;
	VkFramebuffer fb;
};

static void
blit2d_bind_dst(struct radv_cmd_buffer *cmd_buffer,
                struct radv_meta_blit2d_surf *dst,
                uint32_t width,
                uint32_t height,
		VkFormat depth_format,
                struct blit2d_dst_temps *tmp,
                VkImageAspectFlagBits aspects)
{
	create_iview(cmd_buffer, dst, &tmp->iview, depth_format, aspects);

	radv_CreateFramebuffer(radv_device_to_handle(cmd_buffer->device),
			       &(VkFramebufferCreateInfo) {
				       .sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
					       .attachmentCount = 1,
					       .pAttachments = (VkImageView[]) {
					       radv_image_view_to_handle(&tmp->iview),
				       },
				       .width = width,
				       .height = height,
				       .layers = 1
				}, &cmd_buffer->pool->alloc, &tmp->fb);
}

static void
bind_pipeline(struct radv_cmd_buffer *cmd_buffer,
              enum blit2d_src_type src_type, unsigned fs_key,
              uint32_t log2_samples)
{
	VkPipeline pipeline =
		cmd_buffer->device->meta_state.blit2d[log2_samples].pipelines[src_type][fs_key];

	radv_CmdBindPipeline(radv_cmd_buffer_to_handle(cmd_buffer),
			     VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
}

static void
bind_depth_pipeline(struct radv_cmd_buffer *cmd_buffer,
		    enum blit2d_src_type src_type,
		    uint32_t log2_samples)
{
	VkPipeline pipeline =
		cmd_buffer->device->meta_state.blit2d[log2_samples].depth_only_pipeline[src_type];

	radv_CmdBindPipeline(radv_cmd_buffer_to_handle(cmd_buffer),
			     VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
}

static void
bind_stencil_pipeline(struct radv_cmd_buffer *cmd_buffer,
		      enum blit2d_src_type src_type,
		      uint32_t log2_samples)
{
	VkPipeline pipeline =
		cmd_buffer->device->meta_state.blit2d[log2_samples].stencil_only_pipeline[src_type];

	radv_CmdBindPipeline(radv_cmd_buffer_to_handle(cmd_buffer),
			     VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
}

static void
radv_meta_blit2d_normal_dst(struct radv_cmd_buffer *cmd_buffer,
			    struct radv_meta_blit2d_surf *src_img,
			    struct radv_meta_blit2d_buffer *src_buf,
			    struct radv_meta_blit2d_surf *dst,
			    unsigned num_rects,
			    struct radv_meta_blit2d_rect *rects, enum blit2d_src_type src_type,
			    uint32_t log2_samples)
{
	struct radv_device *device = cmd_buffer->device;

	for (unsigned r = 0; r < num_rects; ++r) {
		unsigned i;
		for_each_bit(i, dst->aspect_mask) {
			unsigned aspect_mask = 1u << i;
			VkFormat depth_format = 0;
			if (aspect_mask == VK_IMAGE_ASPECT_STENCIL_BIT)
				depth_format = vk_format_stencil_only(dst->image->vk_format);
			else if (aspect_mask == VK_IMAGE_ASPECT_DEPTH_BIT)
				depth_format = vk_format_depth_only(dst->image->vk_format);
			struct blit2d_src_temps src_temps;
			blit2d_bind_src(cmd_buffer, src_img, src_buf, &src_temps, src_type, depth_format, aspect_mask, log2_samples);

			struct blit2d_dst_temps dst_temps;
			blit2d_bind_dst(cmd_buffer, dst, rects[r].dst_x + rects[r].width,
					rects[r].dst_y + rects[r].height, depth_format, &dst_temps, aspect_mask);

			float vertex_push_constants[4] = {
				rects[r].src_x,
				rects[r].src_y,
				rects[r].src_x + rects[r].width,
				rects[r].src_y + rects[r].height,
			};

			radv_CmdPushConstants(radv_cmd_buffer_to_handle(cmd_buffer),
					device->meta_state.blit2d[log2_samples].p_layouts[src_type],
					VK_SHADER_STAGE_VERTEX_BIT, 0, 16,
					vertex_push_constants);

			if (aspect_mask == VK_IMAGE_ASPECT_COLOR_BIT) {
				unsigned fs_key = radv_format_meta_fs_key(dst_temps.iview.vk_format);
				unsigned dst_layout = radv_meta_dst_layout_from_layout(dst->current_layout);

				radv_CmdBeginRenderPass(radv_cmd_buffer_to_handle(cmd_buffer),
							&(VkRenderPassBeginInfo) {
								.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
									.renderPass = device->meta_state.blit2d_render_passes[fs_key][dst_layout],
									.framebuffer = dst_temps.fb,
									.renderArea = {
									.offset = { rects[r].dst_x, rects[r].dst_y, },
									.extent = { rects[r].width, rects[r].height },
								},
									.clearValueCount = 0,
										.pClearValues = NULL,
										}, VK_SUBPASS_CONTENTS_INLINE);


				bind_pipeline(cmd_buffer, src_type, fs_key, log2_samples);
			} else if (aspect_mask == VK_IMAGE_ASPECT_DEPTH_BIT) {
				enum radv_blit_ds_layout ds_layout = radv_meta_blit_ds_to_type(dst->current_layout);
				radv_CmdBeginRenderPass(radv_cmd_buffer_to_handle(cmd_buffer),
							&(VkRenderPassBeginInfo) {
								.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
									.renderPass = device->meta_state.blit2d_depth_only_rp[ds_layout],
									.framebuffer = dst_temps.fb,
									.renderArea = {
									.offset = { rects[r].dst_x, rects[r].dst_y, },
									.extent = { rects[r].width, rects[r].height },
								},
									.clearValueCount = 0,
										.pClearValues = NULL,
										}, VK_SUBPASS_CONTENTS_INLINE);


				bind_depth_pipeline(cmd_buffer, src_type, log2_samples);

			} else if (aspect_mask == VK_IMAGE_ASPECT_STENCIL_BIT) {
				enum radv_blit_ds_layout ds_layout = radv_meta_blit_ds_to_type(dst->current_layout);
				radv_CmdBeginRenderPass(radv_cmd_buffer_to_handle(cmd_buffer),
							&(VkRenderPassBeginInfo) {
								.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
									.renderPass = device->meta_state.blit2d_stencil_only_rp[ds_layout],
									.framebuffer = dst_temps.fb,
									.renderArea = {
									.offset = { rects[r].dst_x, rects[r].dst_y, },
									.extent = { rects[r].width, rects[r].height },
								},
									.clearValueCount = 0,
										.pClearValues = NULL,
										}, VK_SUBPASS_CONTENTS_INLINE);


				bind_stencil_pipeline(cmd_buffer, src_type, log2_samples);
			} else
				unreachable("Processing blit2d with multiple aspects.");

			radv_CmdSetViewport(radv_cmd_buffer_to_handle(cmd_buffer), 0, 1, &(VkViewport) {
				.x = rects[r].dst_x,
				.y = rects[r].dst_y,
				.width = rects[r].width,
				.height = rects[r].height,
				.minDepth = 0.0f,
				.maxDepth = 1.0f
			});

			radv_CmdSetScissor(radv_cmd_buffer_to_handle(cmd_buffer), 0, 1, &(VkRect2D) {
				.offset = (VkOffset2D) { rects[r].dst_x, rects[r].dst_y },
				.extent = (VkExtent2D) { rects[r].width, rects[r].height },
			});



			if (log2_samples > 0) {
				for (uint32_t sample = 0; sample < src_img->image->info.samples; sample++) {
					uint32_t sample_mask = 1 << sample;
					radv_CmdPushConstants(radv_cmd_buffer_to_handle(cmd_buffer),
							      device->meta_state.blit2d[log2_samples].p_layouts[src_type],
							      VK_SHADER_STAGE_FRAGMENT_BIT, 20, 4,
							      &sample);

					radv_CmdPushConstants(radv_cmd_buffer_to_handle(cmd_buffer),
							      device->meta_state.blit2d[log2_samples].p_layouts[src_type],
							      VK_SHADER_STAGE_FRAGMENT_BIT, 24, 4,
							      &sample_mask);

					radv_CmdDraw(radv_cmd_buffer_to_handle(cmd_buffer), 3, 1, 0, 0);
				}
			}
			else
				radv_CmdDraw(radv_cmd_buffer_to_handle(cmd_buffer), 3, 1, 0, 0);
			radv_CmdEndRenderPass(radv_cmd_buffer_to_handle(cmd_buffer));

			/* At the point where we emit the draw call, all data from the
			* descriptor sets, etc. has been used.  We are free to delete it.
			*/
			radv_DestroyFramebuffer(radv_device_to_handle(device),
						dst_temps.fb,
						&cmd_buffer->pool->alloc);
		}
	}
}

void
radv_meta_blit2d(struct radv_cmd_buffer *cmd_buffer,
		 struct radv_meta_blit2d_surf *src_img,
		 struct radv_meta_blit2d_buffer *src_buf,
		 struct radv_meta_blit2d_surf *dst,
		 unsigned num_rects,
		 struct radv_meta_blit2d_rect *rects)
{
	bool use_3d = cmd_buffer->device->physical_device->rad_info.chip_class >= GFX9 &&
		(src_img && src_img->image->type == VK_IMAGE_TYPE_3D);
	enum blit2d_src_type src_type = src_buf ? BLIT2D_SRC_TYPE_BUFFER :
		use_3d ? BLIT2D_SRC_TYPE_IMAGE_3D : BLIT2D_SRC_TYPE_IMAGE;
	radv_meta_blit2d_normal_dst(cmd_buffer, src_img, src_buf, dst,
				    num_rects, rects, src_type,
				    src_img ? util_logbase2(src_img->image->info.samples) : 0);
}

static nir_shader *
build_nir_vertex_shader(void)
{
	const struct glsl_type *vec4 = glsl_vec4_type();
	const struct glsl_type *vec2 = glsl_vector_type(GLSL_TYPE_FLOAT, 2);
	nir_builder b;

	nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_VERTEX, NULL);
	b.shader->info.name = ralloc_strdup(b.shader, "meta_blit2d_vs");

	nir_variable *pos_out = nir_variable_create(b.shader, nir_var_shader_out,
						    vec4, "gl_Position");
	pos_out->data.location = VARYING_SLOT_POS;

	nir_variable *tex_pos_out = nir_variable_create(b.shader, nir_var_shader_out,
							vec2, "v_tex_pos");
	tex_pos_out->data.location = VARYING_SLOT_VAR0;
	tex_pos_out->data.interpolation = INTERP_MODE_SMOOTH;

	nir_ssa_def *outvec = radv_meta_gen_rect_vertices(&b);
	nir_store_var(&b, pos_out, outvec, 0xf);

	nir_intrinsic_instr *src_box = nir_intrinsic_instr_create(b.shader, nir_intrinsic_load_push_constant);
	src_box->src[0] = nir_src_for_ssa(nir_imm_int(&b, 0));
	nir_intrinsic_set_base(src_box, 0);
	nir_intrinsic_set_range(src_box, 16);
	src_box->num_components = 4;
	nir_ssa_dest_init(&src_box->instr, &src_box->dest, 4, 32, "src_box");
	nir_builder_instr_insert(&b, &src_box->instr);

	nir_intrinsic_instr *vertex_id = nir_intrinsic_instr_create(b.shader, nir_intrinsic_load_vertex_id_zero_base);
	nir_ssa_dest_init(&vertex_id->instr, &vertex_id->dest, 1, 32, "vertexid");
	nir_builder_instr_insert(&b, &vertex_id->instr);

	/* vertex 0 - src_x, src_y */
	/* vertex 1 - src_x, src_y+h */
	/* vertex 2 - src_x+w, src_y */
	/* so channel 0 is vertex_id != 2 ? src_x : src_x + w
	   channel 1 is vertex id != 1 ? src_y : src_y + w */

	nir_ssa_def *c0cmp = nir_ine(&b, &vertex_id->dest.ssa,
				     nir_imm_int(&b, 2));
	nir_ssa_def *c1cmp = nir_ine(&b, &vertex_id->dest.ssa,
				     nir_imm_int(&b, 1));

	nir_ssa_def *comp[2];
	comp[0] = nir_bcsel(&b, c0cmp,
			    nir_channel(&b, &src_box->dest.ssa, 0),
			    nir_channel(&b, &src_box->dest.ssa, 2));

	comp[1] = nir_bcsel(&b, c1cmp,
			    nir_channel(&b, &src_box->dest.ssa, 1),
			    nir_channel(&b, &src_box->dest.ssa, 3));
	nir_ssa_def *out_tex_vec = nir_vec(&b, comp, 2);
	nir_store_var(&b, tex_pos_out, out_tex_vec, 0x3);
	return b.shader;
}

typedef nir_ssa_def* (*texel_fetch_build_func)(struct nir_builder *,
                                               struct radv_device *,
                                               nir_ssa_def *, bool, bool);

static nir_ssa_def *
build_nir_texel_fetch(struct nir_builder *b, struct radv_device *device,
                      nir_ssa_def *tex_pos, bool is_3d, bool is_multisampled)
{
	enum glsl_sampler_dim dim =
		is_3d ? GLSL_SAMPLER_DIM_3D : is_multisampled ? GLSL_SAMPLER_DIM_MS : GLSL_SAMPLER_DIM_2D;
	const struct glsl_type *sampler_type =
		glsl_sampler_type(dim, false, false, GLSL_TYPE_UINT);
	nir_variable *sampler = nir_variable_create(b->shader, nir_var_uniform,
						    sampler_type, "s_tex");
	sampler->data.descriptor_set = 0;
	sampler->data.binding = 0;

	nir_ssa_def *tex_pos_3d = NULL;
	nir_intrinsic_instr *sample_idx = NULL;
	if (is_3d) {
		nir_intrinsic_instr *layer = nir_intrinsic_instr_create(b->shader, nir_intrinsic_load_push_constant);
		nir_intrinsic_set_base(layer, 16);
		nir_intrinsic_set_range(layer, 4);
		layer->src[0] = nir_src_for_ssa(nir_imm_int(b, 0));
		layer->num_components = 1;
		nir_ssa_dest_init(&layer->instr, &layer->dest, 1, 32, "layer");
		nir_builder_instr_insert(b, &layer->instr);

		nir_ssa_def *chans[3];
		chans[0] = nir_channel(b, tex_pos, 0);
		chans[1] = nir_channel(b, tex_pos, 1);
		chans[2] = &layer->dest.ssa;
		tex_pos_3d = nir_vec(b, chans, 3);
	}
	if (is_multisampled) {
		sample_idx = nir_intrinsic_instr_create(b->shader, nir_intrinsic_load_push_constant);
		nir_intrinsic_set_base(sample_idx, 20);
		nir_intrinsic_set_range(sample_idx, 4);
		sample_idx->src[0] = nir_src_for_ssa(nir_imm_int(b, 0));
		sample_idx->num_components = 1;
		nir_ssa_dest_init(&sample_idx->instr, &sample_idx->dest, 1, 32, "sample_idx");
		nir_builder_instr_insert(b, &sample_idx->instr);
	}

	nir_ssa_def *tex_deref = &nir_build_deref_var(b, sampler)->dest.ssa;

	nir_tex_instr *tex = nir_tex_instr_create(b->shader, is_multisampled ? 4 : 3);
	tex->sampler_dim = dim;
	tex->op = is_multisampled ? nir_texop_txf_ms : nir_texop_txf;
	tex->src[0].src_type = nir_tex_src_coord;
	tex->src[0].src = nir_src_for_ssa(is_3d ? tex_pos_3d : tex_pos);
	tex->src[1].src_type = is_multisampled ? nir_tex_src_ms_index : nir_tex_src_lod;
	tex->src[1].src = nir_src_for_ssa(is_multisampled ? &sample_idx->dest.ssa : nir_imm_int(b, 0));
	tex->src[2].src_type = nir_tex_src_texture_deref;
	tex->src[2].src = nir_src_for_ssa(tex_deref);
	if (is_multisampled) {
		tex->src[3].src_type = nir_tex_src_lod;
		tex->src[3].src = nir_src_for_ssa(nir_imm_int(b, 0));
	}
	tex->dest_type = nir_type_uint;
	tex->is_array = false;
	tex->coord_components = is_3d ? 3 : 2;

	nir_ssa_dest_init(&tex->instr, &tex->dest, 4, 32, "tex");
	nir_builder_instr_insert(b, &tex->instr);

	return &tex->dest.ssa;
}


static nir_ssa_def *
build_nir_buffer_fetch(struct nir_builder *b, struct radv_device *device,
		       nir_ssa_def *tex_pos, bool is_3d, bool is_multisampled)
{
	const struct glsl_type *sampler_type =
		glsl_sampler_type(GLSL_SAMPLER_DIM_BUF, false, false, GLSL_TYPE_UINT);
	nir_variable *sampler = nir_variable_create(b->shader, nir_var_uniform,
						    sampler_type, "s_tex");
	sampler->data.descriptor_set = 0;
	sampler->data.binding = 0;

	nir_intrinsic_instr *width = nir_intrinsic_instr_create(b->shader, nir_intrinsic_load_push_constant);
	nir_intrinsic_set_base(width, 16);
	nir_intrinsic_set_range(width, 4);
	width->src[0] = nir_src_for_ssa(nir_imm_int(b, 0));
	width->num_components = 1;
	nir_ssa_dest_init(&width->instr, &width->dest, 1, 32, "width");
	nir_builder_instr_insert(b, &width->instr);

	nir_ssa_def *pos_x = nir_channel(b, tex_pos, 0);
	nir_ssa_def *pos_y = nir_channel(b, tex_pos, 1);
	pos_y = nir_imul(b, pos_y, &width->dest.ssa);
	pos_x = nir_iadd(b, pos_x, pos_y);
	//pos_x = nir_iadd(b, pos_x, nir_imm_int(b, 100000));

	nir_ssa_def *tex_deref = &nir_build_deref_var(b, sampler)->dest.ssa;

	nir_tex_instr *tex = nir_tex_instr_create(b->shader, 2);
	tex->sampler_dim = GLSL_SAMPLER_DIM_BUF;
	tex->op = nir_texop_txf;
	tex->src[0].src_type = nir_tex_src_coord;
	tex->src[0].src = nir_src_for_ssa(pos_x);
	tex->src[1].src_type = nir_tex_src_texture_deref;
	tex->src[1].src = nir_src_for_ssa(tex_deref);
	tex->dest_type = nir_type_uint;
	tex->is_array = false;
	tex->coord_components = 1;

	nir_ssa_dest_init(&tex->instr, &tex->dest, 4, 32, "tex");
	nir_builder_instr_insert(b, &tex->instr);

	return &tex->dest.ssa;
}

static const VkPipelineVertexInputStateCreateInfo normal_vi_create_info = {
	.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
	.vertexBindingDescriptionCount = 0,
	.vertexAttributeDescriptionCount = 0,
};

static void
build_nir_store_sample_mask(struct nir_builder *b)
{
	nir_intrinsic_instr *sample_mask = nir_intrinsic_instr_create(b->shader, nir_intrinsic_load_push_constant);
	nir_intrinsic_set_base(sample_mask, 24);
	nir_intrinsic_set_range(sample_mask, 4);
	sample_mask->src[0] = nir_src_for_ssa(nir_imm_int(b, 0));
	sample_mask->num_components = 1;
	nir_ssa_dest_init(&sample_mask->instr, &sample_mask->dest, 1, 32, "sample_mask");
	nir_builder_instr_insert(b, &sample_mask->instr);

	const struct glsl_type *sample_mask_out_type = glsl_uint_type();

	nir_variable *sample_mask_out =
		nir_variable_create(b->shader, nir_var_shader_out,
				    sample_mask_out_type, "sample_mask_out");
	sample_mask_out->data.location = FRAG_RESULT_SAMPLE_MASK;

	nir_store_var(b, sample_mask_out, &sample_mask->dest.ssa, 0x1);
}

static nir_shader *
build_nir_copy_fragment_shader(struct radv_device *device,
                               texel_fetch_build_func txf_func, const char* name, bool is_3d,
                               bool is_multisampled)
{
	const struct glsl_type *vec4 = glsl_vec4_type();
	const struct glsl_type *vec2 = glsl_vector_type(GLSL_TYPE_FLOAT, 2);
	nir_builder b;

	nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_FRAGMENT, NULL);
	b.shader->info.name = ralloc_strdup(b.shader, name);

	nir_variable *tex_pos_in = nir_variable_create(b.shader, nir_var_shader_in,
						       vec2, "v_tex_pos");
	tex_pos_in->data.location = VARYING_SLOT_VAR0;

	nir_variable *color_out = nir_variable_create(b.shader, nir_var_shader_out,
						      vec4, "f_color");
	color_out->data.location = FRAG_RESULT_DATA0;

	if (is_multisampled) {
		build_nir_store_sample_mask(&b);
	}

	nir_ssa_def *pos_int = nir_f2i32(&b, nir_load_var(&b, tex_pos_in));
	nir_ssa_def *tex_pos = nir_channels(&b, pos_int, 0x3);

	nir_ssa_def *color = txf_func(&b, device, tex_pos, is_3d, is_multisampled);
	nir_store_var(&b, color_out, color, 0xf);

	return b.shader;
}

static nir_shader *
build_nir_copy_fragment_shader_depth(struct radv_device *device,
				     texel_fetch_build_func txf_func, const char* name, bool is_3d,
				     bool is_multisampled)
{
	const struct glsl_type *vec4 = glsl_vec4_type();
	const struct glsl_type *vec2 = glsl_vector_type(GLSL_TYPE_FLOAT, 2);
	nir_builder b;

	nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_FRAGMENT, NULL);
	b.shader->info.name = ralloc_strdup(b.shader, name);

	nir_variable *tex_pos_in = nir_variable_create(b.shader, nir_var_shader_in,
						       vec2, "v_tex_pos");
	tex_pos_in->data.location = VARYING_SLOT_VAR0;

	nir_variable *color_out = nir_variable_create(b.shader, nir_var_shader_out,
						      vec4, "f_color");
	color_out->data.location = FRAG_RESULT_DEPTH;

	if (is_multisampled) {
		build_nir_store_sample_mask(&b);
	}

	nir_ssa_def *pos_int = nir_f2i32(&b, nir_load_var(&b, tex_pos_in));
	nir_ssa_def *tex_pos = nir_channels(&b, pos_int, 0x3);

	nir_ssa_def *color = txf_func(&b, device, tex_pos, is_3d, is_multisampled);
	nir_store_var(&b, color_out, color, 0x1);

	return b.shader;
}

static nir_shader *
build_nir_copy_fragment_shader_stencil(struct radv_device *device,
				       texel_fetch_build_func txf_func, const char* name, bool is_3d,
				       bool is_multisampled)
{
	const struct glsl_type *vec4 = glsl_vec4_type();
	const struct glsl_type *vec2 = glsl_vector_type(GLSL_TYPE_FLOAT, 2);
	nir_builder b;

	nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_FRAGMENT, NULL);
	b.shader->info.name = ralloc_strdup(b.shader, name);

	nir_variable *tex_pos_in = nir_variable_create(b.shader, nir_var_shader_in,
						       vec2, "v_tex_pos");
	tex_pos_in->data.location = VARYING_SLOT_VAR0;

	nir_variable *color_out = nir_variable_create(b.shader, nir_var_shader_out,
						      vec4, "f_color");
	color_out->data.location = FRAG_RESULT_STENCIL;

	if (is_multisampled) {
		build_nir_store_sample_mask(&b);
	}

	nir_ssa_def *pos_int = nir_f2i32(&b, nir_load_var(&b, tex_pos_in));
	nir_ssa_def *tex_pos = nir_channels(&b, pos_int, 0x3);

	nir_ssa_def *color = txf_func(&b, device, tex_pos, is_3d, is_multisampled);
	nir_store_var(&b, color_out, color, 0x1);

	return b.shader;
}

void
radv_device_finish_meta_blit2d_state(struct radv_device *device)
{
	struct radv_meta_state *state = &device->meta_state;

	for(unsigned j = 0; j < NUM_META_FS_KEYS; ++j) {
		for (unsigned k = 0; k < RADV_META_DST_LAYOUT_COUNT; ++k) {
			radv_DestroyRenderPass(radv_device_to_handle(device),
					       state->blit2d_render_passes[j][k],
					       &state->alloc);
		}
	}

	for (enum radv_blit_ds_layout j = RADV_BLIT_DS_LAYOUT_TILE_ENABLE; j < RADV_BLIT_DS_LAYOUT_COUNT; j++) {
		radv_DestroyRenderPass(radv_device_to_handle(device),
				       state->blit2d_depth_only_rp[j], &state->alloc);
		radv_DestroyRenderPass(radv_device_to_handle(device),
				       state->blit2d_stencil_only_rp[j], &state->alloc);
	}

	for (unsigned log2_samples = 0; log2_samples < 1 + MAX_SAMPLES_LOG2; ++log2_samples) {
		for (unsigned src = 0; src < BLIT2D_NUM_SRC_TYPES; src++) {
			radv_DestroyPipelineLayout(radv_device_to_handle(device),
						   state->blit2d[log2_samples].p_layouts[src],
						   &state->alloc);
			radv_DestroyDescriptorSetLayout(radv_device_to_handle(device),
							state->blit2d[log2_samples].ds_layouts[src],
							&state->alloc);

			for (unsigned j = 0; j < NUM_META_FS_KEYS; ++j) {
				radv_DestroyPipeline(radv_device_to_handle(device),
						     state->blit2d[log2_samples].pipelines[src][j],
						     &state->alloc);
			}

			radv_DestroyPipeline(radv_device_to_handle(device),
					     state->blit2d[log2_samples].depth_only_pipeline[src],
					     &state->alloc);
			radv_DestroyPipeline(radv_device_to_handle(device),
					     state->blit2d[log2_samples].stencil_only_pipeline[src],
					     &state->alloc);
		}
	}
}

static VkResult
blit2d_init_color_pipeline(struct radv_device *device,
			   enum blit2d_src_type src_type,
			   VkFormat format,
			   uint32_t log2_samples)
{
	VkResult result;
	unsigned fs_key = radv_format_meta_fs_key(format);
	const char *name;

	texel_fetch_build_func src_func;
	switch(src_type) {
	case BLIT2D_SRC_TYPE_IMAGE:
		src_func = build_nir_texel_fetch;
		name = "meta_blit2d_image_fs";
		break;
	case BLIT2D_SRC_TYPE_IMAGE_3D:
		src_func = build_nir_texel_fetch;
		name = "meta_blit3d_image_fs";
		break;
	case BLIT2D_SRC_TYPE_BUFFER:
		src_func = build_nir_buffer_fetch;
		name = "meta_blit2d_buffer_fs";
		break;
	default:
		unreachable("unknown blit src type\n");
		break;
	}

	const VkPipelineVertexInputStateCreateInfo *vi_create_info;
	struct radv_shader_module fs = { .nir = NULL };


	fs.nir = build_nir_copy_fragment_shader(device, src_func, name, src_type == BLIT2D_SRC_TYPE_IMAGE_3D, log2_samples > 0);
	vi_create_info = &normal_vi_create_info;

	struct radv_shader_module vs = {
		.nir = build_nir_vertex_shader(),
	};

	VkPipelineShaderStageCreateInfo pipeline_shader_stages[] = {
		{
			.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
			.stage = VK_SHADER_STAGE_VERTEX_BIT,
			.module = radv_shader_module_to_handle(&vs),
			.pName = "main",
			.pSpecializationInfo = NULL
		}, {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
			.stage = VK_SHADER_STAGE_FRAGMENT_BIT,
			.module = radv_shader_module_to_handle(&fs),
			.pName = "main",
			.pSpecializationInfo = NULL
		},
	};

	for (unsigned dst_layout = 0; dst_layout < RADV_META_DST_LAYOUT_COUNT; ++dst_layout) {
		if (!device->meta_state.blit2d_render_passes[fs_key][dst_layout]) {
			VkImageLayout layout = radv_meta_dst_layout_to_layout(dst_layout);

			result = radv_CreateRenderPass(radv_device_to_handle(device),
						&(VkRenderPassCreateInfo) {
							.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
							.attachmentCount = 1,
							.pAttachments = &(VkAttachmentDescription) {
							.format = format,
							.loadOp = VK_ATTACHMENT_LOAD_OP_LOAD,
							.storeOp = VK_ATTACHMENT_STORE_OP_STORE,
							.initialLayout = layout,
							.finalLayout = layout,
							},
						.subpassCount = 1,
						.pSubpasses = &(VkSubpassDescription) {
							.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
							.inputAttachmentCount = 0,
							.colorAttachmentCount = 1,
							.pColorAttachments = &(VkAttachmentReference) {
								.attachment = 0,
								.layout = layout,
								},
						.pResolveAttachments = NULL,
						.pDepthStencilAttachment = &(VkAttachmentReference) {
							.attachment = VK_ATTACHMENT_UNUSED,
							.layout = layout,
						},
						.preserveAttachmentCount = 1,
						.pPreserveAttachments = (uint32_t[]) { 0 },
						},
						.dependencyCount = 0,
					}, &device->meta_state.alloc, &device->meta_state.blit2d_render_passes[fs_key][dst_layout]);
		}
	}

	const VkGraphicsPipelineCreateInfo vk_pipeline_info = {
		.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
		.stageCount = ARRAY_SIZE(pipeline_shader_stages),
		.pStages = pipeline_shader_stages,
		.pVertexInputState = vi_create_info,
		.pInputAssemblyState = &(VkPipelineInputAssemblyStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
			.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,
			.primitiveRestartEnable = false,
		},
		.pViewportState = &(VkPipelineViewportStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
			.viewportCount = 1,
			.scissorCount = 1,
		},
		.pRasterizationState = &(VkPipelineRasterizationStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
			.rasterizerDiscardEnable = false,
			.polygonMode = VK_POLYGON_MODE_FILL,
			.cullMode = VK_CULL_MODE_NONE,
			.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE
		},
		.pMultisampleState = &(VkPipelineMultisampleStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
			.rasterizationSamples = 1 << log2_samples,
			.sampleShadingEnable = false,
			.pSampleMask = (VkSampleMask[]) { UINT32_MAX },
		},
		.pColorBlendState = &(VkPipelineColorBlendStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
			.attachmentCount = 1,
			.pAttachments = (VkPipelineColorBlendAttachmentState []) {
				{ .colorWriteMask =
				  VK_COLOR_COMPONENT_A_BIT |
				  VK_COLOR_COMPONENT_R_BIT |
				  VK_COLOR_COMPONENT_G_BIT |
				  VK_COLOR_COMPONENT_B_BIT },
			}
		},
		.pDynamicState = &(VkPipelineDynamicStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,
			.dynamicStateCount = 9,
			.pDynamicStates = (VkDynamicState[]) {
				VK_DYNAMIC_STATE_VIEWPORT,
				VK_DYNAMIC_STATE_SCISSOR,
				VK_DYNAMIC_STATE_LINE_WIDTH,
				VK_DYNAMIC_STATE_DEPTH_BIAS,
				VK_DYNAMIC_STATE_BLEND_CONSTANTS,
				VK_DYNAMIC_STATE_DEPTH_BOUNDS,
				VK_DYNAMIC_STATE_STENCIL_COMPARE_MASK,
				VK_DYNAMIC_STATE_STENCIL_WRITE_MASK,
				VK_DYNAMIC_STATE_STENCIL_REFERENCE,
			},
		},
		.flags = 0,
		.layout = device->meta_state.blit2d[log2_samples].p_layouts[src_type],
		.renderPass = device->meta_state.blit2d_render_passes[fs_key][0],
		.subpass = 0,
	};

	const struct radv_graphics_pipeline_create_info radv_pipeline_info = {
		.use_rectlist = true
	};

	result = radv_graphics_pipeline_create(radv_device_to_handle(device),
					       radv_pipeline_cache_to_handle(&device->meta_state.cache),
					       &vk_pipeline_info, &radv_pipeline_info,
					       &device->meta_state.alloc,
					       &device->meta_state.blit2d[log2_samples].pipelines[src_type][fs_key]);


	ralloc_free(vs.nir);
	ralloc_free(fs.nir);

	return result;
}

static VkResult
blit2d_init_depth_only_pipeline(struct radv_device *device,
				enum blit2d_src_type src_type,
				uint32_t log2_samples)
{
	VkResult result;
	const char *name;

	texel_fetch_build_func src_func;
	switch(src_type) {
	case BLIT2D_SRC_TYPE_IMAGE:
		src_func = build_nir_texel_fetch;
		name = "meta_blit2d_depth_image_fs";
		break;
	case BLIT2D_SRC_TYPE_IMAGE_3D:
		src_func = build_nir_texel_fetch;
		name = "meta_blit3d_depth_image_fs";
		break;
	case BLIT2D_SRC_TYPE_BUFFER:
		src_func = build_nir_buffer_fetch;
		name = "meta_blit2d_depth_buffer_fs";
		break;
	default:
		unreachable("unknown blit src type\n");
		break;
	}

	const VkPipelineVertexInputStateCreateInfo *vi_create_info;
	struct radv_shader_module fs = { .nir = NULL };

	fs.nir = build_nir_copy_fragment_shader_depth(device, src_func, name, src_type == BLIT2D_SRC_TYPE_IMAGE_3D, log2_samples > 0);
	vi_create_info = &normal_vi_create_info;

	struct radv_shader_module vs = {
		.nir = build_nir_vertex_shader(),
	};

	VkPipelineShaderStageCreateInfo pipeline_shader_stages[] = {
		{
			.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
			.stage = VK_SHADER_STAGE_VERTEX_BIT,
			.module = radv_shader_module_to_handle(&vs),
			.pName = "main",
			.pSpecializationInfo = NULL
		}, {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
			.stage = VK_SHADER_STAGE_FRAGMENT_BIT,
			.module = radv_shader_module_to_handle(&fs),
			.pName = "main",
			.pSpecializationInfo = NULL
		},
	};

	for (enum radv_blit_ds_layout ds_layout = RADV_BLIT_DS_LAYOUT_TILE_ENABLE; ds_layout < RADV_BLIT_DS_LAYOUT_COUNT; ds_layout++) {
		if (!device->meta_state.blit2d_depth_only_rp[ds_layout]) {
			VkImageLayout layout = radv_meta_blit_ds_to_layout(ds_layout);
			result = radv_CreateRenderPass(radv_device_to_handle(device),
						       &(VkRenderPassCreateInfo) {
							       .sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
							       .attachmentCount = 1,
							       .pAttachments = &(VkAttachmentDescription) {
								       .format = VK_FORMAT_D32_SFLOAT,
								       .loadOp = VK_ATTACHMENT_LOAD_OP_LOAD,
								       .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
								       .initialLayout = layout,
								       .finalLayout = layout,
							       },
							       .subpassCount = 1,
							       .pSubpasses = &(VkSubpassDescription) {
								       .pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
								       .inputAttachmentCount = 0,
								       .colorAttachmentCount = 0,
								       .pColorAttachments = NULL,
								       .pResolveAttachments = NULL,
								       .pDepthStencilAttachment = &(VkAttachmentReference) {
									       .attachment = 0,
									       .layout = layout,
								       },
								       .preserveAttachmentCount = 1,
								       .pPreserveAttachments = (uint32_t[]) { 0 },
							       },
							       .dependencyCount = 0,
							}, &device->meta_state.alloc, &device->meta_state.blit2d_depth_only_rp[ds_layout]);
		}
	}

	const VkGraphicsPipelineCreateInfo vk_pipeline_info = {
		.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
		.stageCount = ARRAY_SIZE(pipeline_shader_stages),
		.pStages = pipeline_shader_stages,
		.pVertexInputState = vi_create_info,
		.pInputAssemblyState = &(VkPipelineInputAssemblyStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
			.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,
			.primitiveRestartEnable = false,
		},
		.pViewportState = &(VkPipelineViewportStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
			.viewportCount = 1,
			.scissorCount = 1,
		},
		.pRasterizationState = &(VkPipelineRasterizationStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
			.rasterizerDiscardEnable = false,
			.polygonMode = VK_POLYGON_MODE_FILL,
			.cullMode = VK_CULL_MODE_NONE,
			.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE
		},
		.pMultisampleState = &(VkPipelineMultisampleStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
			.rasterizationSamples = 1 << log2_samples,
			.sampleShadingEnable = false,
			.pSampleMask = (VkSampleMask[]) { UINT32_MAX },
		},
		.pColorBlendState = &(VkPipelineColorBlendStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
			.attachmentCount = 0,
			.pAttachments = NULL,
		},
		.pDepthStencilState = &(VkPipelineDepthStencilStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,
			.depthTestEnable = true,
			.depthWriteEnable = true,
			.depthCompareOp = VK_COMPARE_OP_ALWAYS,
		},
		.pDynamicState = &(VkPipelineDynamicStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,
			.dynamicStateCount = 9,
			.pDynamicStates = (VkDynamicState[]) {
				VK_DYNAMIC_STATE_VIEWPORT,
				VK_DYNAMIC_STATE_SCISSOR,
				VK_DYNAMIC_STATE_LINE_WIDTH,
				VK_DYNAMIC_STATE_DEPTH_BIAS,
				VK_DYNAMIC_STATE_BLEND_CONSTANTS,
				VK_DYNAMIC_STATE_DEPTH_BOUNDS,
				VK_DYNAMIC_STATE_STENCIL_COMPARE_MASK,
				VK_DYNAMIC_STATE_STENCIL_WRITE_MASK,
				VK_DYNAMIC_STATE_STENCIL_REFERENCE,
			},
		},
		.flags = 0,
		.layout = device->meta_state.blit2d[log2_samples].p_layouts[src_type],
		.renderPass = device->meta_state.blit2d_depth_only_rp[0],
		.subpass = 0,
	};

	const struct radv_graphics_pipeline_create_info radv_pipeline_info = {
		.use_rectlist = true
	};

	result = radv_graphics_pipeline_create(radv_device_to_handle(device),
					       radv_pipeline_cache_to_handle(&device->meta_state.cache),
					       &vk_pipeline_info, &radv_pipeline_info,
					       &device->meta_state.alloc,
					       &device->meta_state.blit2d[log2_samples].depth_only_pipeline[src_type]);


	ralloc_free(vs.nir);
	ralloc_free(fs.nir);

	return result;
}

static VkResult
blit2d_init_stencil_only_pipeline(struct radv_device *device,
				  enum blit2d_src_type src_type,
				  uint32_t log2_samples)
{
	VkResult result;
	const char *name;

	texel_fetch_build_func src_func;
	switch(src_type) {
	case BLIT2D_SRC_TYPE_IMAGE:
		src_func = build_nir_texel_fetch;
		name = "meta_blit2d_stencil_image_fs";
		break;
	case BLIT2D_SRC_TYPE_IMAGE_3D:
		src_func = build_nir_texel_fetch;
		name = "meta_blit3d_stencil_image_fs";
		break;
	case BLIT2D_SRC_TYPE_BUFFER:
		src_func = build_nir_buffer_fetch;
		name = "meta_blit2d_stencil_buffer_fs";
		break;
	default:
		unreachable("unknown blit src type\n");
		break;
	}

	const VkPipelineVertexInputStateCreateInfo *vi_create_info;
	struct radv_shader_module fs = { .nir = NULL };

	fs.nir = build_nir_copy_fragment_shader_stencil(device, src_func, name, src_type == BLIT2D_SRC_TYPE_IMAGE_3D, log2_samples > 0);
	vi_create_info = &normal_vi_create_info;

	struct radv_shader_module vs = {
		.nir = build_nir_vertex_shader(),
	};

	VkPipelineShaderStageCreateInfo pipeline_shader_stages[] = {
		{
			.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
			.stage = VK_SHADER_STAGE_VERTEX_BIT,
			.module = radv_shader_module_to_handle(&vs),
			.pName = "main",
			.pSpecializationInfo = NULL
		}, {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
			.stage = VK_SHADER_STAGE_FRAGMENT_BIT,
			.module = radv_shader_module_to_handle(&fs),
			.pName = "main",
			.pSpecializationInfo = NULL
		},
	};

	for (enum radv_blit_ds_layout ds_layout = RADV_BLIT_DS_LAYOUT_TILE_ENABLE; ds_layout < RADV_BLIT_DS_LAYOUT_COUNT; ds_layout++) {
		if (!device->meta_state.blit2d_stencil_only_rp[ds_layout]) {
			VkImageLayout layout = radv_meta_blit_ds_to_layout(ds_layout);
			result = radv_CreateRenderPass(radv_device_to_handle(device),
						       &(VkRenderPassCreateInfo) {
							       .sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
							       .attachmentCount = 1,
							       .pAttachments = &(VkAttachmentDescription) {
								       .format = VK_FORMAT_S8_UINT,
								       .loadOp = VK_ATTACHMENT_LOAD_OP_LOAD,
								       .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
								       .initialLayout = layout,
								       .finalLayout = layout,
							       },
							       .subpassCount = 1,
							       .pSubpasses = &(VkSubpassDescription) {
								       .pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
								       .inputAttachmentCount = 0,
								       .colorAttachmentCount = 0,
								       .pColorAttachments = NULL,
								       .pResolveAttachments = NULL,
								       .pDepthStencilAttachment = &(VkAttachmentReference) {
									       .attachment = 0,
									       .layout = layout,
								       },
								       .preserveAttachmentCount = 1,
								       .pPreserveAttachments = (uint32_t[]) { 0 },
							       },
							       .dependencyCount = 0,
						       }, &device->meta_state.alloc, &device->meta_state.blit2d_stencil_only_rp[ds_layout]);
		}
	}

	const VkGraphicsPipelineCreateInfo vk_pipeline_info = {
		.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
		.stageCount = ARRAY_SIZE(pipeline_shader_stages),
		.pStages = pipeline_shader_stages,
		.pVertexInputState = vi_create_info,
		.pInputAssemblyState = &(VkPipelineInputAssemblyStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
			.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,
			.primitiveRestartEnable = false,
		},
		.pViewportState = &(VkPipelineViewportStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
			.viewportCount = 1,
			.scissorCount = 1,
		},
		.pRasterizationState = &(VkPipelineRasterizationStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
			.rasterizerDiscardEnable = false,
			.polygonMode = VK_POLYGON_MODE_FILL,
			.cullMode = VK_CULL_MODE_NONE,
			.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE
		},
		.pMultisampleState = &(VkPipelineMultisampleStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
			.rasterizationSamples = 1 << log2_samples,
			.sampleShadingEnable = false,
			.pSampleMask = (VkSampleMask[]) { UINT32_MAX },
		},
		.pColorBlendState = &(VkPipelineColorBlendStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
			.attachmentCount = 0,
			.pAttachments = NULL,
		},
		.pDepthStencilState = &(VkPipelineDepthStencilStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,
			.depthTestEnable = false,
			.depthWriteEnable = false,
			.stencilTestEnable = true,
			.front = {
				.failOp = VK_STENCIL_OP_REPLACE,
				.passOp = VK_STENCIL_OP_REPLACE,
				.depthFailOp = VK_STENCIL_OP_REPLACE,
				.compareOp = VK_COMPARE_OP_ALWAYS,
				.compareMask = 0xff,
				.writeMask = 0xff,
				.reference = 0
			},
			.back = {
				.failOp = VK_STENCIL_OP_REPLACE,
				.passOp = VK_STENCIL_OP_REPLACE,
				.depthFailOp = VK_STENCIL_OP_REPLACE,
				.compareOp = VK_COMPARE_OP_ALWAYS,
				.compareMask = 0xff,
				.writeMask = 0xff,
				.reference = 0
			},
			.depthCompareOp = VK_COMPARE_OP_ALWAYS,
		},
		.pDynamicState = &(VkPipelineDynamicStateCreateInfo) {
			.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,
			.dynamicStateCount = 6,
			.pDynamicStates = (VkDynamicState[]) {
				VK_DYNAMIC_STATE_VIEWPORT,
				VK_DYNAMIC_STATE_SCISSOR,
				VK_DYNAMIC_STATE_LINE_WIDTH,
				VK_DYNAMIC_STATE_DEPTH_BIAS,
				VK_DYNAMIC_STATE_BLEND_CONSTANTS,
				VK_DYNAMIC_STATE_DEPTH_BOUNDS,
			},
		},
		.flags = 0,
		.layout = device->meta_state.blit2d[log2_samples].p_layouts[src_type],
		.renderPass = device->meta_state.blit2d_stencil_only_rp[0],
		.subpass = 0,
	};

	const struct radv_graphics_pipeline_create_info radv_pipeline_info = {
		.use_rectlist = true
	};

	result = radv_graphics_pipeline_create(radv_device_to_handle(device),
					       radv_pipeline_cache_to_handle(&device->meta_state.cache),
					       &vk_pipeline_info, &radv_pipeline_info,
					       &device->meta_state.alloc,
					       &device->meta_state.blit2d[log2_samples].stencil_only_pipeline[src_type]);


	ralloc_free(vs.nir);
	ralloc_free(fs.nir);

	return result;
}

static VkFormat pipeline_formats[] = {
   VK_FORMAT_R8G8B8A8_UNORM,
   VK_FORMAT_R8G8B8A8_UINT,
   VK_FORMAT_R8G8B8A8_SINT,
   VK_FORMAT_A2R10G10B10_UINT_PACK32,
   VK_FORMAT_A2R10G10B10_SINT_PACK32,
   VK_FORMAT_R16G16B16A16_UNORM,
   VK_FORMAT_R16G16B16A16_SNORM,
   VK_FORMAT_R16G16B16A16_UINT,
   VK_FORMAT_R16G16B16A16_SINT,
   VK_FORMAT_R32_SFLOAT,
   VK_FORMAT_R32G32_SFLOAT,
   VK_FORMAT_R32G32B32A32_SFLOAT
};

static VkResult
meta_blit2d_create_pipe_layout(struct radv_device *device,
			       int idx,
			       uint32_t log2_samples)
{
	VkResult result;
	VkDescriptorType desc_type = (idx == BLIT2D_SRC_TYPE_BUFFER) ? VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER : VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
	const VkPushConstantRange push_constant_ranges[] = {
		{VK_SHADER_STAGE_VERTEX_BIT, 0, 16},
		{VK_SHADER_STAGE_FRAGMENT_BIT, 16, 12},
	};
	int num_push_constant_range = (idx != BLIT2D_SRC_TYPE_IMAGE || log2_samples > 0) ? 2 : 1;

	result = radv_CreateDescriptorSetLayout(radv_device_to_handle(device),
						&(VkDescriptorSetLayoutCreateInfo) {
							.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
							.flags = VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT_KHR,
							.bindingCount = 1,
							.pBindings = (VkDescriptorSetLayoutBinding[]) {
							{
								.binding = 0,
								.descriptorType = desc_type,
								.descriptorCount = 1,
								.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT,
								.pImmutableSamplers = NULL
							},
							}
						}, &device->meta_state.alloc, &device->meta_state.blit2d[log2_samples].ds_layouts[idx]);
	if (result != VK_SUCCESS)
		goto fail;

	result = radv_CreatePipelineLayout(radv_device_to_handle(device),
					   &(VkPipelineLayoutCreateInfo) {
						   .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
							   .setLayoutCount = 1,
							   .pSetLayouts = &device->meta_state.blit2d[log2_samples].ds_layouts[idx],
							   .pushConstantRangeCount = num_push_constant_range,
							   .pPushConstantRanges = push_constant_ranges,
							   },
					   &device->meta_state.alloc, &device->meta_state.blit2d[log2_samples].p_layouts[idx]);
	if (result != VK_SUCCESS)
		goto fail;
	return VK_SUCCESS;
fail:
	return result;
}

VkResult
radv_device_init_meta_blit2d_state(struct radv_device *device)
{
	VkResult result;
	bool create_3d = device->physical_device->rad_info.chip_class >= GFX9;

	for (unsigned log2_samples = 0; log2_samples < 1 + MAX_SAMPLES_LOG2; log2_samples++) {
		for (unsigned src = 0; src < BLIT2D_NUM_SRC_TYPES; src++) {
			if (src == BLIT2D_SRC_TYPE_IMAGE_3D && !create_3d)
				continue;

			/* Don't need to handle copies between buffers and multisample images. */
			if (src == BLIT2D_SRC_TYPE_BUFFER && log2_samples > 0)
				continue;

			result = meta_blit2d_create_pipe_layout(device, src, log2_samples);
			if (result != VK_SUCCESS)
				goto fail;

			for (unsigned j = 0; j < ARRAY_SIZE(pipeline_formats); ++j) {
				result = blit2d_init_color_pipeline(device, src, pipeline_formats[j], log2_samples);
				if (result != VK_SUCCESS)
					goto fail;
			}

			result = blit2d_init_depth_only_pipeline(device, src, log2_samples);
			if (result != VK_SUCCESS)
				goto fail;

			result = blit2d_init_stencil_only_pipeline(device, src, log2_samples);
			if (result != VK_SUCCESS)
				goto fail;
		}
	}

	return VK_SUCCESS;

fail:
	radv_device_finish_meta_blit2d_state(device);
	return result;
}
