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Diffstat (limited to 'src/glsl/nir/nir_intrinsics.h')
-rw-r--r-- | src/glsl/nir/nir_intrinsics.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_intrinsics.h b/src/glsl/nir/nir_intrinsics.h new file mode 100644 index 00000000000..e82152c7f9e --- /dev/null +++ b/src/glsl/nir/nir_intrinsics.h @@ -0,0 +1,158 @@ +/* + * Copyright © 2014 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. + * + * Authors: + * Connor Abbott ([email protected]) + * + */ + +/** + * This header file defines all the available intrinsics in one place. It + * expands to a list of macros of the form: + * + * INTRINSIC(name, num_srcs, src_components, has_dest, dest_components, + * num_variables, num_indices, flags) + * + * Which should correspond one-to-one with the nir_intrinsic_info structure. It + * is included in both ir.h to create the nir_intrinsic enum (with members of + * the form nir_intrinsic_(name)) and and in opcodes.c to create + * nir_intrinsic_infos, which is a const array of nir_intrinsic_info structures + * for each intrinsic. + */ + +#define ARR(...) { __VA_ARGS__ } + + +INTRINSIC(load_var_vec1, 0, ARR(), true, 1, 1, 0, + NIR_INTRINSIC_CAN_ELIMINATE) +INTRINSIC(load_var_vec2, 0, ARR(), true, 2, 1, 0, + NIR_INTRINSIC_CAN_ELIMINATE) +INTRINSIC(load_var_vec3, 0, ARR(), true, 3, 1, 0, + NIR_INTRINSIC_CAN_ELIMINATE) +INTRINSIC(load_var_vec4, 0, ARR(), true, 4, 1, 0, + NIR_INTRINSIC_CAN_ELIMINATE) +INTRINSIC(store_var_vec1, 1, ARR(1), false, 0, 1, 0, 0) +INTRINSIC(store_var_vec2, 1, ARR(2), false, 0, 1, 0, 0) +INTRINSIC(store_var_vec3, 1, ARR(3), false, 0, 1, 0, 0) +INTRINSIC(store_var_vec4, 1, ARR(4), false, 0, 1, 0, 0) +INTRINSIC(copy_var, 0, ARR(), false, 0, 2, 0, 0) + +/* + * a barrier is an intrinsic with no inputs/outputs but which can't be moved + * around/optimized in general + */ +#define BARRIER(name) INTRINSIC(name, 0, ARR(), false, 0, 0, 0, 0) + +BARRIER(discard) + +INTRINSIC(emit_vertex, 0, ARR(), false, 0, 0, 1, 0) +INTRINSIC(end_primitive, 0, ARR(), false, 0, 0, 1, 0) + +/* + * Atomic counters + * + * The *_var variants take an atomic_uint nir_variable, while the other, + * lowered, variants take a constant buffer index and register offset. + */ + +#define ATOMIC(name, flags) \ + INTRINSIC(atomic_counter_##name##_var, 0, ARR(), true, 1, 1, 0, flags) \ + INTRINSIC(atomic_counter_##name, 1, ARR(1), true, 1, 0, 1, flags) + +ATOMIC(inc, 0) +ATOMIC(dec, 0) +ATOMIC(read, NIR_INTRINSIC_CAN_ELIMINATE) + +#define SYSTEM_VALUE(name, components) \ + INTRINSIC(load_##name, 0, ARR(), true, components, 0, 0, \ + NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER) + +SYSTEM_VALUE(front_face, 1) +SYSTEM_VALUE(vertex_id, 1) +SYSTEM_VALUE(instance_id, 1) +SYSTEM_VALUE(sample_id, 1) +SYSTEM_VALUE(sample_pos, 2) +SYSTEM_VALUE(sample_mask_in, 1) +SYSTEM_VALUE(invocation_id, 1) + +#define LOAD(name, num_indices, flags) \ + INTRINSIC(load_##name##_vec1, 0, ARR(), true, 1, 0, num_indices, \ + NIR_INTRINSIC_CAN_ELIMINATE | flags) \ + INTRINSIC(load_##name##_vec2, 0, ARR(), true, 2, 0, num_indices, \ + NIR_INTRINSIC_CAN_ELIMINATE | flags) \ + INTRINSIC(load_##name##_vec3, 0, ARR(), true, 3, 0, num_indices, \ + NIR_INTRINSIC_CAN_ELIMINATE | flags) \ + INTRINSIC(load_##name##_vec4, 0, ARR(), true, 4, 0, num_indices, \ + NIR_INTRINSIC_CAN_ELIMINATE | flags) \ + INTRINSIC(load_##name##_vec1_indirect, 1, ARR(1), true, 1, 0, num_indices, \ + NIR_INTRINSIC_CAN_ELIMINATE | flags) \ + INTRINSIC(load_##name##_vec2_indirect, 1, ARR(1), true, 2, 0, num_indices, \ + NIR_INTRINSIC_CAN_ELIMINATE | flags) \ + INTRINSIC(load_##name##_vec3_indirect, 1, ARR(1), true, 3, 0, num_indices, \ + NIR_INTRINSIC_CAN_ELIMINATE | flags) \ + INTRINSIC(load_##name##_vec4_indirect, 1, ARR(1), true, 4, 0, num_indices, \ + NIR_INTRINSIC_CAN_ELIMINATE | flags) \ + + +/* + * The first index is the address to load from, and the second index is the + * number of array elements to load. For UBO's (and SSBO's), the first index + * is the UBO buffer index (TODO nonconstant UBO buffer index) and the second + * and third indices play the role of the first and second indices in the other + * loads. Indirect loads have an additional register input, which is added + * to the constant address to compute the final address to load from. + * + * For vector backends, the address is in terms of one vec4, and so each array + * element is +4 scalar components from the previous array element. For scalar + * backends, the address is in terms of a single 4-byte float/int and arrays + * elements begin immediately after the previous array element. + */ + +LOAD(uniform, 2, NIR_INTRINSIC_CAN_REORDER) +LOAD(ubo, 3, NIR_INTRINSIC_CAN_REORDER) +LOAD(input, 2, NIR_INTRINSIC_CAN_REORDER) +/* LOAD(ssbo, 2, 0) */ + +#define STORE(name, num_indices, flags) \ + INTRINSIC(store_##name##_vec1, 1, ARR(1), false, 0, 0, num_indices, flags) \ + INTRINSIC(store_##name##_vec2, 1, ARR(2), false, 0, 0, num_indices, flags) \ + INTRINSIC(store_##name##_vec3, 1, ARR(3), false, 0, 0, num_indices, flags) \ + INTRINSIC(store_##name##_vec4, 1, ARR(4), false, 0, 0, num_indices, flags) \ + INTRINSIC(store_##name##_vec1_indirect, 2, ARR(1, 1), false, 0, 0, \ + num_indices, flags) \ + INTRINSIC(store_##name##_vec2_indirect, 2, ARR(2, 1), false, 0, 0, \ + num_indices, flags) \ + INTRINSIC(store_##name##_vec3_indirect, 2, ARR(3, 1), false, 0, 0, \ + num_indices, flags) \ + INTRINSIC(store_##name##_vec4_indirect, 2, ARR(4, 1), false, 0, 0, \ + num_indices, flags) \ + +/* + * Stores work the same way as loads, except now the first register input is + * the value or array to store and the optional second input is the indirect + * offset. + */ + +STORE(output, 2, 0) +/* STORE(ssbo, 3, 0) */ + +LAST_INTRINSIC(store_output_vec4_indirect) |