| /* |
| * Copyright © 2006 - 2017 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 "brw_clip.h" |
| |
| #include "dev/gen_debug.h" |
| |
| const unsigned * |
| brw_compile_clip(const struct brw_compiler *compiler, |
| void *mem_ctx, |
| const struct brw_clip_prog_key *key, |
| struct brw_clip_prog_data *prog_data, |
| struct brw_vue_map *vue_map, |
| unsigned *final_assembly_size) |
| { |
| struct brw_clip_compile c; |
| memset(&c, 0, sizeof(c)); |
| |
| /* Begin the compilation: |
| */ |
| brw_init_codegen(compiler->devinfo, &c.func, mem_ctx); |
| |
| c.func.single_program_flow = 1; |
| |
| c.key = *key; |
| c.vue_map = *vue_map; |
| |
| /* nr_regs is the number of registers filled by reading data from the VUE. |
| * This program accesses the entire VUE, so nr_regs needs to be the size of |
| * the VUE (measured in pairs, since two slots are stored in each |
| * register). |
| */ |
| c.nr_regs = (c.vue_map.num_slots + 1)/2; |
| |
| c.prog_data.clip_mode = c.key.clip_mode; /* XXX */ |
| |
| /* For some reason the thread is spawned with only 4 channels |
| * unmasked. |
| */ |
| brw_set_default_mask_control(&c.func, BRW_MASK_DISABLE); |
| |
| /* Would ideally have the option of producing a program which could |
| * do all three: |
| */ |
| switch (key->primitive) { |
| case GL_TRIANGLES: |
| if (key->do_unfilled) |
| brw_emit_unfilled_clip( &c ); |
| else |
| brw_emit_tri_clip( &c ); |
| break; |
| case GL_LINES: |
| brw_emit_line_clip( &c ); |
| break; |
| case GL_POINTS: |
| brw_emit_point_clip( &c ); |
| break; |
| default: |
| unreachable("not reached"); |
| } |
| |
| brw_compact_instructions(&c.func, 0, NULL); |
| |
| *prog_data = c.prog_data; |
| |
| const unsigned *program = brw_get_program(&c.func, final_assembly_size); |
| |
| if (INTEL_DEBUG & DEBUG_CLIP) { |
| fprintf(stderr, "clip:\n"); |
| brw_disassemble_with_labels(compiler->devinfo, |
| program, 0, *final_assembly_size, stderr); |
| fprintf(stderr, "\n"); |
| } |
| |
| return program; |
| } |