const unsigned bit_size = intrin->dest.ssa.bit_size;
switch (intrin->intrinsic) {
+ case nir_intrinsic_load_vertex_id:
+ if (b->shader->options->vertex_id_zero_based) {
+ return nir_iadd(b, nir_load_vertex_id_zero_base(b),
+ nir_load_first_vertex(b));
+ } else {
+ return NULL;
+ }
+
+ case nir_intrinsic_load_base_vertex:
+ /**
+ * From the OpenGL 4.6 (11.1.3.9 Shader Inputs) specification:
+ *
+ * "gl_BaseVertex holds the integer value passed to the baseVertex
+ * parameter to the command that resulted in the current shader
+ * invocation. In the case where the command has no baseVertex
+ * parameter, the value of gl_BaseVertex is zero."
+ */
+ if (b->shader->options->lower_base_vertex) {
+ return nir_iand(b, nir_load_is_indexed_draw(b),
+ nir_load_first_vertex(b));
+ } else {
+ return NULL;
+ }
+
case nir_intrinsic_load_local_invocation_id:
/* If lower_cs_local_id_from_index is true, then we derive the local
* index from the local id.
return sanitize_32bit_sysval(b, intrin);
}
+ case nir_intrinsic_load_local_invocation_index:
+ /* If lower_cs_local_index_from_id is true, then we derive the local
+ * index from the local id.
+ */
+ if (b->shader->options->lower_cs_local_index_from_id) {
+ /* From the GLSL man page for gl_LocalInvocationIndex:
+ *
+ * "The value of gl_LocalInvocationIndex is equal to
+ * gl_LocalInvocationID.z * gl_WorkGroupSize.x *
+ * gl_WorkGroupSize.y + gl_LocalInvocationID.y *
+ * gl_WorkGroupSize.x + gl_LocalInvocationID.x"
+ */
+ nir_ssa_def *local_id = nir_load_local_invocation_id(b);
+
+ nir_ssa_def *size_x =
+ nir_imm_int(b, b->shader->info.cs.local_size[0]);
+ nir_ssa_def *size_y =
+ nir_imm_int(b, b->shader->info.cs.local_size[1]);
+
+ /* Because no hardware supports a local workgroup size greater than
+ * about 1K, this calculation can be done in 32-bit and can save some
+ * 64-bit arithmetic.
+ */
+ nir_ssa_def *index;
+ index = nir_imul(b, nir_channel(b, local_id, 2),
+ nir_imul(b, size_x, size_y));
+ index = nir_iadd(b, index,
+ nir_imul(b, nir_channel(b, local_id, 1), size_x));
+ index = nir_iadd(b, index, nir_channel(b, local_id, 0));
+ return nir_u2u(b, index, bit_size);
+ } else {
+ return sanitize_32bit_sysval(b, intrin);
+ }
+
case nir_intrinsic_load_local_group_size:
if (b->shader->info.cs.local_size_variable) {
/* If the local work group size is variable it can't be lowered at
nir_u2u(b, local_id, bit_size));
}
+ case nir_intrinsic_load_global_invocation_index: {
+ nir_ssa_def *global_id = nir_load_global_invocation_id(b, bit_size);
+ nir_ssa_def *global_size = build_global_group_size(b, bit_size);
+
+ /* index = id.x + ((id.y + (id.z * size.y)) * size.x) */
+ nir_ssa_def *index;
+ index = nir_imul(b, nir_channel(b, global_id, 2),
+ nir_channel(b, global_size, 1));
+ index = nir_iadd(b, nir_channel(b, global_id, 1), index);
+ index = nir_imul(b, nir_channel(b, global_size, 0), index);
+ index = nir_iadd(b, nir_channel(b, global_id, 0), index);
+ return index;
+ }
+
+ case nir_intrinsic_load_helper_invocation:
+ if (b->shader->options->lower_helper_invocation) {
+ nir_ssa_def *tmp;
+ tmp = nir_ishl(b, nir_imm_int(b, 1),
+ nir_load_sample_id_no_per_sample(b));
+ tmp = nir_iand(b, nir_load_sample_mask_in(b), tmp);
+ return nir_inot(b, nir_i2b(b, tmp));
+ } else {
+ return NULL;
+ }
+
+ case nir_intrinsic_load_num_work_groups:
+ case nir_intrinsic_load_work_group_id:
+ return sanitize_32bit_sysval(b, intrin);
+
case nir_intrinsic_load_deref: {
nir_deref_instr *deref = nir_src_as_deref(intrin->src[0]);
if (deref->mode != nir_var_system_value)
nir_variable *var = deref->var;
switch (var->data.location) {
- case SYSTEM_VALUE_GLOBAL_INVOCATION_INDEX: {
- nir_ssa_def *global_id = nir_load_global_invocation_id(b, bit_size);
- nir_ssa_def *global_size = build_global_group_size(b, bit_size);
-
- /* index = id.x + ((id.y + (id.z * size.y)) * size.x) */
- nir_ssa_def *index;
- index = nir_imul(b, nir_channel(b, global_id, 2),
- nir_channel(b, global_size, 1));
- index = nir_iadd(b, nir_channel(b, global_id, 1), index);
- index = nir_imul(b, nir_channel(b, global_size, 0), index);
- index = nir_iadd(b, nir_channel(b, global_id, 0), index);
- return index;
- }
-
- case SYSTEM_VALUE_LOCAL_INVOCATION_INDEX: {
- /* If lower_cs_local_index_from_id is true, then we derive the local
- * index from the local id.
- */
- if (!b->shader->options->lower_cs_local_index_from_id)
- break;
-
- /* From the GLSL man page for gl_LocalInvocationIndex:
- *
- * "The value of gl_LocalInvocationIndex is equal to
- * gl_LocalInvocationID.z * gl_WorkGroupSize.x *
- * gl_WorkGroupSize.y + gl_LocalInvocationID.y *
- * gl_WorkGroupSize.x + gl_LocalInvocationID.x"
- */
- nir_ssa_def *local_id = nir_load_local_invocation_id(b);
-
- nir_ssa_def *size_x =
- nir_imm_int(b, b->shader->info.cs.local_size[0]);
- nir_ssa_def *size_y =
- nir_imm_int(b, b->shader->info.cs.local_size[1]);
-
- /* Because no hardware supports a local workgroup size greater than
- * about 1K, this calculation can be done in 32-bit and can save some
- * 64-bit arithmetic.
- */
- nir_ssa_def *index;
- index = nir_imul(b, nir_channel(b, local_id, 2),
- nir_imul(b, size_x, size_y));
- index = nir_iadd(b, index,
- nir_imul(b, nir_channel(b, local_id, 1), size_x));
- index = nir_iadd(b, index, nir_channel(b, local_id, 0));
- index = nir_u2u(b, index, bit_size);
- return index;
- }
-
- case SYSTEM_VALUE_VERTEX_ID:
- if (b->shader->options->vertex_id_zero_based) {
- return nir_iadd(b, nir_load_vertex_id_zero_base(b),
- nir_load_first_vertex(b));
- }
- break;
-
- case SYSTEM_VALUE_BASE_VERTEX:
- /**
- * From the OpenGL 4.6 (11.1.3.9 Shader Inputs) specification:
- *
- * "gl_BaseVertex holds the integer value passed to the baseVertex
- * parameter to the command that resulted in the current shader
- * invocation. In the case where the command has no baseVertex
- * parameter, the value of gl_BaseVertex is zero."
- */
- if (b->shader->options->lower_base_vertex) {
- return nir_iand(b, nir_load_is_indexed_draw(b),
- nir_load_first_vertex(b));
- }
- break;
-
- case SYSTEM_VALUE_HELPER_INVOCATION:
- if (b->shader->options->lower_helper_invocation) {
- nir_ssa_def *tmp;
-
- tmp = nir_ishl(b,
- nir_imm_int(b, 1),
- nir_load_sample_id_no_per_sample(b));
-
- tmp = nir_iand(b,
- nir_load_sample_mask_in(b),
- tmp);
-
- return nir_inot(b, nir_i2b(b, tmp));
- }
- break;
-
case SYSTEM_VALUE_INSTANCE_INDEX:
return nir_iadd(b, nir_load_instance_id(b),
nir_load_base_instance(b));
case SYSTEM_VALUE_GLOBAL_GROUP_SIZE:
return build_global_group_size(b, bit_size);
+ case SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL:
+ return nir_load_barycentric(b, nir_intrinsic_load_barycentric_pixel,
+ INTERP_MODE_NOPERSPECTIVE);
+
+ case SYSTEM_VALUE_BARYCENTRIC_LINEAR_CENTROID:
+ return nir_load_barycentric(b, nir_intrinsic_load_barycentric_centroid,
+ INTERP_MODE_NOPERSPECTIVE);
+
+ case SYSTEM_VALUE_BARYCENTRIC_LINEAR_SAMPLE:
+ return nir_load_barycentric(b, nir_intrinsic_load_barycentric_sample,
+ INTERP_MODE_NOPERSPECTIVE);
+
+ case SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL:
+ return nir_load_barycentric(b, nir_intrinsic_load_barycentric_pixel,
+ INTERP_MODE_SMOOTH);
+
+ case SYSTEM_VALUE_BARYCENTRIC_PERSP_CENTROID:
+ return nir_load_barycentric(b, nir_intrinsic_load_barycentric_centroid,
+ INTERP_MODE_SMOOTH);
+
+ case SYSTEM_VALUE_BARYCENTRIC_PERSP_SAMPLE:
+ return nir_load_barycentric(b, nir_intrinsic_load_barycentric_sample,
+ INTERP_MODE_SMOOTH);
+
+ case SYSTEM_VALUE_BARYCENTRIC_PULL_MODEL:
+ return nir_load_barycentric(b, nir_intrinsic_load_barycentric_model,
+ INTERP_MODE_NONE);
+
default:
break;
}
nir_intrinsic_op sysval_op =
nir_intrinsic_from_system_value(var->data.location);
return nir_load_system_value(b, sysval_op, 0,
+ intrin->dest.ssa.num_components,
intrin->dest.ssa.bit_size);
}
projects / mesa.git / blobdiff