97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
/*
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* Copyright © 2006 - 2017 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "brw_clip.h"
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#include "dev/intel_debug.h"
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const unsigned *
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brw_compile_clip(const struct brw_compiler *compiler,
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void *mem_ctx,
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const struct brw_clip_prog_key *key,
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struct brw_clip_prog_data *prog_data,
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struct brw_vue_map *vue_map,
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unsigned *final_assembly_size)
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{
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struct brw_clip_compile c;
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memset(&c, 0, sizeof(c));
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/* Begin the compilation:
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*/
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brw_init_codegen(&compiler->isa, &c.func, mem_ctx);
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c.func.single_program_flow = 1;
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c.key = *key;
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c.vue_map = *vue_map;
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/* nr_regs is the number of registers filled by reading data from the VUE.
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* This program accesses the entire VUE, so nr_regs needs to be the size of
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* the VUE (measured in pairs, since two slots are stored in each
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* register).
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*/
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c.nr_regs = (c.vue_map.num_slots + 1)/2;
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c.prog_data.clip_mode = c.key.clip_mode; /* XXX */
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/* For some reason the thread is spawned with only 4 channels
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* unmasked.
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*/
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brw_set_default_mask_control(&c.func, BRW_MASK_DISABLE);
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/* Would ideally have the option of producing a program which could
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* do all three:
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*/
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switch (key->primitive) {
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case SHADER_PRIM_TRIANGLES:
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if (key->do_unfilled)
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brw_emit_unfilled_clip( &c );
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else
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brw_emit_tri_clip( &c );
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break;
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case SHADER_PRIM_LINES:
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brw_emit_line_clip( &c );
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break;
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case SHADER_PRIM_POINTS:
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brw_emit_point_clip( &c );
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break;
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default:
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unreachable("not reached");
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}
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brw_compact_instructions(&c.func, 0, NULL);
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*prog_data = c.prog_data;
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const unsigned *program = brw_get_program(&c.func, final_assembly_size);
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if (INTEL_DEBUG(DEBUG_CLIP)) {
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fprintf(stderr, "clip:\n");
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brw_disassemble_with_labels(&compiler->isa,
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program, 0, *final_assembly_size, stderr);
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fprintf(stderr, "\n");
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}
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return program;
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}
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