mesa/src/broadcom/vulkan/v3dvx_pipeline.c

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/*
* Copyright © 2021 Raspberry Pi Ltd
*
* 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 "v3dv_private.h"
#include "broadcom/common/v3d_macros.h"
#include "broadcom/cle/v3dx_pack.h"
#include "broadcom/compiler/v3d_compiler.h"
static uint8_t
blend_factor(VkBlendFactor factor, bool dst_alpha_one, bool *needs_constants)
{
switch (factor) {
case VK_BLEND_FACTOR_ZERO:
case VK_BLEND_FACTOR_ONE:
case VK_BLEND_FACTOR_SRC_COLOR:
case VK_BLEND_FACTOR_ONE_MINUS_SRC_COLOR:
case VK_BLEND_FACTOR_DST_COLOR:
case VK_BLEND_FACTOR_ONE_MINUS_DST_COLOR:
case VK_BLEND_FACTOR_SRC_ALPHA:
case VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA:
case VK_BLEND_FACTOR_SRC_ALPHA_SATURATE:
return factor;
case VK_BLEND_FACTOR_CONSTANT_COLOR:
case VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_COLOR:
case VK_BLEND_FACTOR_CONSTANT_ALPHA:
case VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_ALPHA:
*needs_constants = true;
return factor;
case VK_BLEND_FACTOR_DST_ALPHA:
return dst_alpha_one ? V3D_BLEND_FACTOR_ONE :
V3D_BLEND_FACTOR_DST_ALPHA;
case VK_BLEND_FACTOR_ONE_MINUS_DST_ALPHA:
return dst_alpha_one ? V3D_BLEND_FACTOR_ZERO :
V3D_BLEND_FACTOR_INV_DST_ALPHA;
case VK_BLEND_FACTOR_SRC1_COLOR:
case VK_BLEND_FACTOR_ONE_MINUS_SRC1_COLOR:
case VK_BLEND_FACTOR_SRC1_ALPHA:
case VK_BLEND_FACTOR_ONE_MINUS_SRC1_ALPHA:
assert(!"Invalid blend factor: dual source blending not supported.");
default:
assert(!"Unknown blend factor.");
}
/* Should be handled by the switch, added to avoid a "end of non-void
* function" error
*/
unreachable("Unknown blend factor.");
}
static void
pack_blend(struct v3dv_pipeline *pipeline,
const VkPipelineColorBlendStateCreateInfo *cb_info)
{
/* By default, we are not enabling blending and all color channel writes are
* enabled. Color write enables are independent of whether blending is
* enabled or not.
*
* Vulkan specifies color write masks so that bits set correspond to
* enabled channels. Our hardware does it the other way around.
*/
pipeline->blend.enables = 0;
pipeline->blend.color_write_masks = 0; /* All channels enabled */
if (!cb_info)
return;
assert(pipeline->subpass);
if (pipeline->subpass->color_count == 0)
return;
assert(pipeline->subpass->color_count == cb_info->attachmentCount);
pipeline->blend.needs_color_constants = false;
uint32_t color_write_masks = 0;
for (uint32_t i = 0; i < pipeline->subpass->color_count; i++) {
const VkPipelineColorBlendAttachmentState *b_state =
&cb_info->pAttachments[i];
uint32_t attachment_idx =
pipeline->subpass->color_attachments[i].attachment;
if (attachment_idx == VK_ATTACHMENT_UNUSED)
continue;
color_write_masks |= (~b_state->colorWriteMask & 0xf) << (4 * i);
if (!b_state->blendEnable)
continue;
VkAttachmentDescription2 *desc =
&pipeline->pass->attachments[attachment_idx].desc;
const struct v3dv_format *format = v3dX(get_format)(desc->format);
bool dst_alpha_one = (format->swizzle[3] == PIPE_SWIZZLE_1);
uint8_t rt_mask = 1 << i;
pipeline->blend.enables |= rt_mask;
v3dvx_pack(pipeline->blend.cfg[i], BLEND_CFG, config) {
config.render_target_mask = rt_mask;
config.color_blend_mode = b_state->colorBlendOp;
config.color_blend_dst_factor =
blend_factor(b_state->dstColorBlendFactor, dst_alpha_one,
&pipeline->blend.needs_color_constants);
config.color_blend_src_factor =
blend_factor(b_state->srcColorBlendFactor, dst_alpha_one,
&pipeline->blend.needs_color_constants);
config.alpha_blend_mode = b_state->alphaBlendOp;
config.alpha_blend_dst_factor =
blend_factor(b_state->dstAlphaBlendFactor, dst_alpha_one,
&pipeline->blend.needs_color_constants);
config.alpha_blend_src_factor =
blend_factor(b_state->srcAlphaBlendFactor, dst_alpha_one,
&pipeline->blend.needs_color_constants);
}
}
pipeline->blend.color_write_masks = color_write_masks;
}
/* This requires that pack_blend() had been called before so we can set
* the overall blend enable bit in the CFG_BITS packet.
*/
static void
pack_cfg_bits(struct v3dv_pipeline *pipeline,
const VkPipelineDepthStencilStateCreateInfo *ds_info,
const VkPipelineRasterizationStateCreateInfo *rs_info,
const VkPipelineRasterizationProvokingVertexStateCreateInfoEXT *pv_info,
const VkPipelineMultisampleStateCreateInfo *ms_info)
{
assert(sizeof(pipeline->cfg_bits) == cl_packet_length(CFG_BITS));
pipeline->msaa =
ms_info && ms_info->rasterizationSamples > VK_SAMPLE_COUNT_1_BIT;
v3dvx_pack(pipeline->cfg_bits, CFG_BITS, config) {
config.enable_forward_facing_primitive =
rs_info ? !(rs_info->cullMode & VK_CULL_MODE_FRONT_BIT) : false;
config.enable_reverse_facing_primitive =
rs_info ? !(rs_info->cullMode & VK_CULL_MODE_BACK_BIT) : false;
/* Seems like the hardware is backwards regarding this setting... */
config.clockwise_primitives =
rs_info ? rs_info->frontFace == VK_FRONT_FACE_COUNTER_CLOCKWISE : false;
config.enable_depth_offset = rs_info ? rs_info->depthBiasEnable: false;
/* This is required to pass line rasterization tests in CTS while
* exposing, at least, a minimum of 4-bits of subpixel precision
* (the minimum requirement).
*/
config.line_rasterization = V3D_LINE_RASTERIZATION_PERP_END_CAPS;
if (rs_info && rs_info->polygonMode != VK_POLYGON_MODE_FILL) {
config.direct3d_wireframe_triangles_mode = true;
config.direct3d_point_fill_mode =
rs_info->polygonMode == VK_POLYGON_MODE_POINT;
}
config.rasterizer_oversample_mode = pipeline->msaa ? 1 : 0;
/* From the Vulkan spec:
*
* "Provoking Vertex:
*
* The vertex in a primitive from which flat shaded attribute
* values are taken. This is generally the “first” vertex in the
* primitive, and depends on the primitive topology."
*
* First vertex is the Direct3D style for provoking vertex. OpenGL uses
* the last vertex by default.
*/
if (pv_info) {
config.direct3d_provoking_vertex =
pv_info->provokingVertexMode ==
VK_PROVOKING_VERTEX_MODE_FIRST_VERTEX_EXT;
} else {
config.direct3d_provoking_vertex = true;
}
config.blend_enable = pipeline->blend.enables != 0;
/* Disable depth/stencil if we don't have a D/S attachment */
bool has_ds_attachment =
pipeline->subpass->ds_attachment.attachment != VK_ATTACHMENT_UNUSED;
if (ds_info && ds_info->depthTestEnable && has_ds_attachment) {
config.z_updates_enable = ds_info->depthWriteEnable;
config.depth_test_function = ds_info->depthCompareOp;
} else {
config.depth_test_function = VK_COMPARE_OP_ALWAYS;
}
/* EZ state will be updated at draw time based on bound pipeline state */
config.early_z_updates_enable = false;
config.early_z_enable = false;
config.stencil_enable =
ds_info ? ds_info->stencilTestEnable && has_ds_attachment: false;
pipeline->z_updates_enable = config.z_updates_enable;
};
}
static uint32_t
translate_stencil_op(enum pipe_stencil_op op)
{
switch (op) {
case VK_STENCIL_OP_KEEP:
return V3D_STENCIL_OP_KEEP;
case VK_STENCIL_OP_ZERO:
return V3D_STENCIL_OP_ZERO;
case VK_STENCIL_OP_REPLACE:
return V3D_STENCIL_OP_REPLACE;
case VK_STENCIL_OP_INCREMENT_AND_CLAMP:
return V3D_STENCIL_OP_INCR;
case VK_STENCIL_OP_DECREMENT_AND_CLAMP:
return V3D_STENCIL_OP_DECR;
case VK_STENCIL_OP_INVERT:
return V3D_STENCIL_OP_INVERT;
case VK_STENCIL_OP_INCREMENT_AND_WRAP:
return V3D_STENCIL_OP_INCWRAP;
case VK_STENCIL_OP_DECREMENT_AND_WRAP:
return V3D_STENCIL_OP_DECWRAP;
default:
unreachable("bad stencil op");
}
}
static void
pack_single_stencil_cfg(struct v3dv_pipeline *pipeline,
uint8_t *stencil_cfg,
bool is_front,
bool is_back,
const VkStencilOpState *stencil_state)
{
/* From the Vulkan spec:
*
* "Reference is an integer reference value that is used in the unsigned
* stencil comparison. The reference value used by stencil comparison
* must be within the range [0,2^s-1] , where s is the number of bits in
* the stencil framebuffer attachment, otherwise the reference value is
* considered undefined."
*
* In our case, 's' is always 8, so we clamp to that to prevent our packing
* functions to assert in debug mode if they see larger values.
*
* If we have dynamic state we need to make sure we set the corresponding
* state bits to 0, since cl_emit_with_prepacked ORs the new value with
* the old.
*/
const uint8_t write_mask =
pipeline->dynamic_state.mask & V3DV_DYNAMIC_STENCIL_WRITE_MASK ?
0 : stencil_state->writeMask & 0xff;
const uint8_t compare_mask =
pipeline->dynamic_state.mask & V3DV_DYNAMIC_STENCIL_COMPARE_MASK ?
0 : stencil_state->compareMask & 0xff;
const uint8_t reference =
pipeline->dynamic_state.mask & V3DV_DYNAMIC_STENCIL_COMPARE_MASK ?
0 : stencil_state->reference & 0xff;
v3dvx_pack(stencil_cfg, STENCIL_CFG, config) {
config.front_config = is_front;
config.back_config = is_back;
config.stencil_write_mask = write_mask;
config.stencil_test_mask = compare_mask;
config.stencil_test_function = stencil_state->compareOp;
config.stencil_pass_op = translate_stencil_op(stencil_state->passOp);
config.depth_test_fail_op = translate_stencil_op(stencil_state->depthFailOp);
config.stencil_test_fail_op = translate_stencil_op(stencil_state->failOp);
config.stencil_ref_value = reference;
}
}
static void
pack_stencil_cfg(struct v3dv_pipeline *pipeline,
const VkPipelineDepthStencilStateCreateInfo *ds_info)
{
assert(sizeof(pipeline->stencil_cfg) == 2 * cl_packet_length(STENCIL_CFG));
if (!ds_info || !ds_info->stencilTestEnable)
return;
if (pipeline->subpass->ds_attachment.attachment == VK_ATTACHMENT_UNUSED)
return;
const uint32_t dynamic_stencil_states = V3DV_DYNAMIC_STENCIL_COMPARE_MASK |
V3DV_DYNAMIC_STENCIL_WRITE_MASK |
V3DV_DYNAMIC_STENCIL_REFERENCE;
/* If front != back or we have dynamic stencil state we can't emit a single
* packet for both faces.
*/
bool needs_front_and_back = false;
if ((pipeline->dynamic_state.mask & dynamic_stencil_states) ||
memcmp(&ds_info->front, &ds_info->back, sizeof(ds_info->front)))
needs_front_and_back = true;
/* If the front and back configurations are the same we can emit both with
* a single packet.
*/
pipeline->emit_stencil_cfg[0] = true;
if (!needs_front_and_back) {
pack_single_stencil_cfg(pipeline, pipeline->stencil_cfg[0],
true, true, &ds_info->front);
} else {
pipeline->emit_stencil_cfg[1] = true;
pack_single_stencil_cfg(pipeline, pipeline->stencil_cfg[0],
true, false, &ds_info->front);
pack_single_stencil_cfg(pipeline, pipeline->stencil_cfg[1],
false, true, &ds_info->back);
}
}
void
v3dX(pipeline_pack_state)(struct v3dv_pipeline *pipeline,
const VkPipelineColorBlendStateCreateInfo *cb_info,
const VkPipelineDepthStencilStateCreateInfo *ds_info,
const VkPipelineRasterizationStateCreateInfo *rs_info,
const VkPipelineRasterizationProvokingVertexStateCreateInfoEXT *pv_info,
const VkPipelineMultisampleStateCreateInfo *ms_info)
{
pack_blend(pipeline, cb_info);
pack_cfg_bits(pipeline, ds_info, rs_info, pv_info, ms_info);
pack_stencil_cfg(pipeline, ds_info);
}
static void
pack_shader_state_record(struct v3dv_pipeline *pipeline)
{
assert(sizeof(pipeline->shader_state_record) ==
cl_packet_length(GL_SHADER_STATE_RECORD));
struct v3d_fs_prog_data *prog_data_fs =
pipeline->shared_data->variants[BROADCOM_SHADER_FRAGMENT]->prog_data.fs;
struct v3d_vs_prog_data *prog_data_vs =
pipeline->shared_data->variants[BROADCOM_SHADER_VERTEX]->prog_data.vs;
struct v3d_vs_prog_data *prog_data_vs_bin =
pipeline->shared_data->variants[BROADCOM_SHADER_VERTEX_BIN]->prog_data.vs;
/* Note: we are not packing addresses, as we need the job (see
* cl_pack_emit_reloc). Additionally uniforms can't be filled up at this
* point as they depend on dynamic info that can be set after create the
* pipeline (like viewport), . Would need to be filled later, so we are
* doing a partial prepacking.
*/
v3dvx_pack(pipeline->shader_state_record, GL_SHADER_STATE_RECORD, shader) {
shader.enable_clipping = true;
if (!pipeline->has_gs) {
shader.point_size_in_shaded_vertex_data =
pipeline->topology == PIPE_PRIM_POINTS;
} else {
struct v3d_gs_prog_data *prog_data_gs =
pipeline->shared_data->variants[BROADCOM_SHADER_GEOMETRY]->prog_data.gs;
shader.point_size_in_shaded_vertex_data = prog_data_gs->writes_psiz;
}
/* Must be set if the shader modifies Z, discards, or modifies
* the sample mask. For any of these cases, the fragment
* shader needs to write the Z value (even just discards).
*/
shader.fragment_shader_does_z_writes = prog_data_fs->writes_z;
/* Set if the EZ test must be disabled (due to shader side
* effects and the early_z flag not being present in the
* shader).
*/
shader.turn_off_early_z_test = prog_data_fs->disable_ez;
shader.fragment_shader_uses_real_pixel_centre_w_in_addition_to_centroid_w2 =
prog_data_fs->uses_center_w;
/* The description for gl_SampleID states that if a fragment shader reads
* it, then we should automatically activate per-sample shading. However,
* the Vulkan spec also states that if a framebuffer has no attachments:
*
* "The subpass continues to use the width, height, and layers of the
* framebuffer to define the dimensions of the rendering area, and the
* rasterizationSamples from each pipelines
* VkPipelineMultisampleStateCreateInfo to define the number of
* samples used in rasterization multisample rasterization."
*
* So in this scenario, if the pipeline doesn't enable multiple samples
* but the fragment shader accesses gl_SampleID we would be requested
* to do per-sample shading in single sample rasterization mode, which
* is pointless, so just disable it in that case.
*/
shader.enable_sample_rate_shading =
pipeline->sample_rate_shading ||
(pipeline->msaa && prog_data_fs->force_per_sample_msaa);
shader.any_shader_reads_hardware_written_primitive_id = false;
shader.do_scoreboard_wait_on_first_thread_switch =
prog_data_fs->lock_scoreboard_on_first_thrsw;
shader.disable_implicit_point_line_varyings =
!prog_data_fs->uses_implicit_point_line_varyings;
shader.number_of_varyings_in_fragment_shader =
prog_data_fs->num_inputs;
shader.coordinate_shader_propagate_nans = true;
shader.vertex_shader_propagate_nans = true;
shader.fragment_shader_propagate_nans = true;
/* Note: see previous note about adresses */
/* shader.coordinate_shader_code_address */
/* shader.vertex_shader_code_address */
/* shader.fragment_shader_code_address */
/* FIXME: Use combined input/output size flag in the common case (also
* on v3d, see v3dx_draw).
*/
shader.coordinate_shader_has_separate_input_and_output_vpm_blocks =
prog_data_vs_bin->separate_segments;
shader.vertex_shader_has_separate_input_and_output_vpm_blocks =
prog_data_vs->separate_segments;
shader.coordinate_shader_input_vpm_segment_size =
prog_data_vs_bin->separate_segments ?
prog_data_vs_bin->vpm_input_size : 1;
shader.vertex_shader_input_vpm_segment_size =
prog_data_vs->separate_segments ?
prog_data_vs->vpm_input_size : 1;
shader.coordinate_shader_output_vpm_segment_size =
prog_data_vs_bin->vpm_output_size;
shader.vertex_shader_output_vpm_segment_size =
prog_data_vs->vpm_output_size;
/* Note: see previous note about adresses */
/* shader.coordinate_shader_uniforms_address */
/* shader.vertex_shader_uniforms_address */
/* shader.fragment_shader_uniforms_address */
shader.min_coord_shader_input_segments_required_in_play =
pipeline->vpm_cfg_bin.As;
shader.min_vertex_shader_input_segments_required_in_play =
pipeline->vpm_cfg.As;
shader.min_coord_shader_output_segments_required_in_play_in_addition_to_vcm_cache_size =
pipeline->vpm_cfg_bin.Ve;
shader.min_vertex_shader_output_segments_required_in_play_in_addition_to_vcm_cache_size =
pipeline->vpm_cfg.Ve;
shader.coordinate_shader_4_way_threadable =
prog_data_vs_bin->base.threads == 4;
shader.vertex_shader_4_way_threadable =
prog_data_vs->base.threads == 4;
shader.fragment_shader_4_way_threadable =
prog_data_fs->base.threads == 4;
shader.coordinate_shader_start_in_final_thread_section =
prog_data_vs_bin->base.single_seg;
shader.vertex_shader_start_in_final_thread_section =
prog_data_vs->base.single_seg;
shader.fragment_shader_start_in_final_thread_section =
prog_data_fs->base.single_seg;
shader.vertex_id_read_by_coordinate_shader =
prog_data_vs_bin->uses_vid;
shader.base_instance_id_read_by_coordinate_shader =
prog_data_vs_bin->uses_biid;
shader.instance_id_read_by_coordinate_shader =
prog_data_vs_bin->uses_iid;
shader.vertex_id_read_by_vertex_shader =
prog_data_vs->uses_vid;
shader.base_instance_id_read_by_vertex_shader =
prog_data_vs->uses_biid;
shader.instance_id_read_by_vertex_shader =
prog_data_vs->uses_iid;
/* Note: see previous note about adresses */
/* shader.address_of_default_attribute_values */
}
}
static void
pack_vcm_cache_size(struct v3dv_pipeline *pipeline)
{
assert(sizeof(pipeline->vcm_cache_size) ==
cl_packet_length(VCM_CACHE_SIZE));
v3dvx_pack(pipeline->vcm_cache_size, VCM_CACHE_SIZE, vcm) {
vcm.number_of_16_vertex_batches_for_binning = pipeline->vpm_cfg_bin.Vc;
vcm.number_of_16_vertex_batches_for_rendering = pipeline->vpm_cfg.Vc;
}
}
/* As defined on the GL_SHADER_STATE_ATTRIBUTE_RECORD */
static uint8_t
get_attr_type(const struct util_format_description *desc)
{
uint32_t r_size = desc->channel[0].size;
uint8_t attr_type = ATTRIBUTE_FLOAT;
switch (desc->channel[0].type) {
case UTIL_FORMAT_TYPE_FLOAT:
if (r_size == 32) {
attr_type = ATTRIBUTE_FLOAT;
} else {
assert(r_size == 16);
attr_type = ATTRIBUTE_HALF_FLOAT;
}
break;
case UTIL_FORMAT_TYPE_SIGNED:
case UTIL_FORMAT_TYPE_UNSIGNED:
switch (r_size) {
case 32:
attr_type = ATTRIBUTE_INT;
break;
case 16:
attr_type = ATTRIBUTE_SHORT;
break;
case 10:
attr_type = ATTRIBUTE_INT2_10_10_10;
break;
case 8:
attr_type = ATTRIBUTE_BYTE;
break;
default:
fprintf(stderr,
"format %s unsupported\n",
desc->name);
attr_type = ATTRIBUTE_BYTE;
abort();
}
break;
default:
fprintf(stderr,
"format %s unsupported\n",
desc->name);
abort();
}
return attr_type;
}
static void
pack_shader_state_attribute_record(struct v3dv_pipeline *pipeline,
uint32_t index,
const VkVertexInputAttributeDescription *vi_desc)
{
const uint32_t packet_length =
cl_packet_length(GL_SHADER_STATE_ATTRIBUTE_RECORD);
const struct util_format_description *desc =
vk_format_description(vi_desc->format);
uint32_t binding = vi_desc->binding;
v3dvx_pack(&pipeline->vertex_attrs[index * packet_length],
GL_SHADER_STATE_ATTRIBUTE_RECORD, attr) {
/* vec_size == 0 means 4 */
attr.vec_size = desc->nr_channels & 3;
attr.signed_int_type = (desc->channel[0].type ==
UTIL_FORMAT_TYPE_SIGNED);
attr.normalized_int_type = desc->channel[0].normalized;
attr.read_as_int_uint = desc->channel[0].pure_integer;
attr.instance_divisor = MIN2(pipeline->vb[binding].instance_divisor,
0xffff);
attr.stride = pipeline->vb[binding].stride;
attr.type = get_attr_type(desc);
}
}
void
v3dX(pipeline_pack_compile_state)(struct v3dv_pipeline *pipeline,
const VkPipelineVertexInputStateCreateInfo *vi_info,
const VkPipelineVertexInputDivisorStateCreateInfoEXT *vd_info)
{
pack_shader_state_record(pipeline);
pack_vcm_cache_size(pipeline);
pipeline->vb_count = vi_info->vertexBindingDescriptionCount;
for (uint32_t i = 0; i < vi_info->vertexBindingDescriptionCount; i++) {
const VkVertexInputBindingDescription *desc =
&vi_info->pVertexBindingDescriptions[i];
pipeline->vb[desc->binding].stride = desc->stride;
pipeline->vb[desc->binding].instance_divisor = desc->inputRate;
}
if (vd_info) {
for (uint32_t i = 0; i < vd_info->vertexBindingDivisorCount; i++) {
const VkVertexInputBindingDivisorDescriptionEXT *desc =
&vd_info->pVertexBindingDivisors[i];
pipeline->vb[desc->binding].instance_divisor = desc->divisor;
}
}
pipeline->va_count = 0;
struct v3d_vs_prog_data *prog_data_vs =
pipeline->shared_data->variants[BROADCOM_SHADER_VERTEX]->prog_data.vs;
for (uint32_t i = 0; i < vi_info->vertexAttributeDescriptionCount; i++) {
const VkVertexInputAttributeDescription *desc =
&vi_info->pVertexAttributeDescriptions[i];
uint32_t location = desc->location + VERT_ATTRIB_GENERIC0;
/* We use a custom driver_location_map instead of
* nir_find_variable_with_location because if we were able to get the
* shader variant from the cache, we would not have the nir shader
* available.
*/
uint32_t driver_location =
prog_data_vs->driver_location_map[location];
if (driver_location != -1) {
assert(driver_location < MAX_VERTEX_ATTRIBS);
pipeline->va[driver_location].offset = desc->offset;
pipeline->va[driver_location].binding = desc->binding;
pipeline->va[driver_location].vk_format = desc->format;
pack_shader_state_attribute_record(pipeline, driver_location, desc);
pipeline->va_count++;
}
}
}