| 0,0 → 1,501 |
|---|
| /************************************************************************** |
| * |
| * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * All Rights Reserved. |
| * |
| * 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, sub license, 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 NON-INFRINGEMENT. |
| * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 "util/u_math.h" |
| #include "util/u_memory.h" |
| #include "util/u_prim.h" |
| #include "draw/draw_context.h" |
| #include "draw/draw_vbuf.h" |
| #include "draw/draw_vertex.h" |
| #include "draw/draw_prim_assembler.h" |
| #include "draw/draw_pt.h" |
| #include "draw/draw_vs.h" |
| #include "draw/draw_gs.h" |
| |
| |
| struct fetch_pipeline_middle_end { |
| struct draw_pt_middle_end base; |
| struct draw_context *draw; |
| |
| struct pt_emit *emit; |
| struct pt_so_emit *so_emit; |
| struct pt_fetch *fetch; |
| struct pt_post_vs *post_vs; |
| |
| unsigned vertex_data_offset; |
| unsigned vertex_size; |
| unsigned input_prim; |
| unsigned opt; |
| }; |
| |
| |
| /** |
| * Prepare/validate middle part of the vertex pipeline. |
| * NOTE: if you change this function, also look at the LLVM |
| * function llvm_middle_end_prepare() for similar changes. |
| */ |
| static void fetch_pipeline_prepare( struct draw_pt_middle_end *middle, |
| unsigned prim, |
| unsigned opt, |
| unsigned *max_vertices ) |
| { |
| struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; |
| struct draw_context *draw = fpme->draw; |
| struct draw_vertex_shader *vs = draw->vs.vertex_shader; |
| struct draw_geometry_shader *gs = draw->gs.geometry_shader; |
| unsigned i; |
| unsigned instance_id_index = ~0; |
| |
| const unsigned gs_out_prim = (gs ? gs->output_primitive : |
| u_assembled_prim(prim)); |
| |
| /* Add one to num_outputs because the pipeline occasionally tags on |
| * an additional texcoord, eg for AA lines. |
| */ |
| unsigned nr = MAX2( vs->info.num_inputs, |
| vs->info.num_outputs + 1 ); |
| |
| if (gs) { |
| nr = MAX2(nr, gs->info.num_outputs + 1); |
| } |
| |
| /* Scan for instanceID system value. |
| */ |
| for (i = 0; i < vs->info.num_inputs; i++) { |
| if (vs->info.input_semantic_name[i] == TGSI_SEMANTIC_INSTANCEID) { |
| instance_id_index = i; |
| break; |
| } |
| } |
| |
| fpme->input_prim = prim; |
| fpme->opt = opt; |
| |
| /* Always leave room for the vertex header whether we need it or |
| * not. It's hard to get rid of it in particular because of the |
| * viewport code in draw_pt_post_vs.c. |
| */ |
| fpme->vertex_size = sizeof(struct vertex_header) + nr * 4 * sizeof(float); |
| |
| |
| |
| draw_pt_fetch_prepare( fpme->fetch, |
| vs->info.num_inputs, |
| fpme->vertex_size, |
| instance_id_index ); |
| draw_pt_post_vs_prepare( fpme->post_vs, |
| draw->clip_xy, |
| draw->clip_z, |
| draw->clip_user, |
| draw->guard_band_xy, |
| draw->identity_viewport, |
| draw->rasterizer->clip_halfz, |
| (draw->vs.edgeflag_output ? TRUE : FALSE) ); |
| |
| draw_pt_so_emit_prepare( fpme->so_emit, FALSE ); |
| |
| if (!(opt & PT_PIPELINE)) { |
| draw_pt_emit_prepare( fpme->emit, |
| gs_out_prim, |
| max_vertices ); |
| |
| *max_vertices = MAX2( *max_vertices, 4096 ); |
| } |
| else { |
| /* limit max fetches by limiting max_vertices */ |
| *max_vertices = 4096; |
| } |
| |
| /* No need to prepare the shader. |
| */ |
| vs->prepare(vs, draw); |
| } |
| |
| |
| static void |
| fetch_pipeline_bind_parameters(struct draw_pt_middle_end *middle) |
| { |
| /* No-op since the vertex shader executor and drawing pipeline |
| * just grab the constants, viewport, etc. from the draw context state. |
| */ |
| } |
| |
| |
| static void fetch( struct pt_fetch *fetch, |
| const struct draw_fetch_info *fetch_info, |
| char *output) |
| { |
| if (fetch_info->linear) { |
| draw_pt_fetch_run_linear( fetch, |
| fetch_info->start, |
| fetch_info->count, |
| output ); |
| } |
| else { |
| draw_pt_fetch_run( fetch, |
| fetch_info->elts, |
| fetch_info->count, |
| output ); |
| } |
| } |
| |
| |
| static void pipeline(struct fetch_pipeline_middle_end *fpme, |
| const struct draw_vertex_info *vert_info, |
| const struct draw_prim_info *prim_info) |
| { |
| if (prim_info->linear) |
| draw_pipeline_run_linear( fpme->draw, |
| vert_info, |
| prim_info); |
| else |
| draw_pipeline_run( fpme->draw, |
| vert_info, |
| prim_info ); |
| } |
| |
| static void emit(struct pt_emit *emit, |
| const struct draw_vertex_info *vert_info, |
| const struct draw_prim_info *prim_info) |
| { |
| if (prim_info->linear) { |
| draw_pt_emit_linear(emit, vert_info, prim_info); |
| } |
| else { |
| draw_pt_emit(emit, vert_info, prim_info); |
| } |
| } |
| |
| |
| static void draw_vertex_shader_run(struct draw_vertex_shader *vshader, |
| const void *constants[PIPE_MAX_CONSTANT_BUFFERS], |
| unsigned const_size[PIPE_MAX_CONSTANT_BUFFERS], |
| const struct draw_vertex_info *input_verts, |
| struct draw_vertex_info *output_verts ) |
| { |
| output_verts->vertex_size = input_verts->vertex_size; |
| output_verts->stride = input_verts->vertex_size; |
| output_verts->count = input_verts->count; |
| output_verts->verts = |
| (struct vertex_header *)MALLOC(output_verts->vertex_size * |
| align(output_verts->count, 4)); |
| |
| vshader->run_linear(vshader, |
| (const float (*)[4])input_verts->verts->data, |
| ( float (*)[4])output_verts->verts->data, |
| constants, |
| const_size, |
| input_verts->count, |
| input_verts->vertex_size, |
| input_verts->vertex_size); |
| } |
| |
| static void fetch_pipeline_generic( struct draw_pt_middle_end *middle, |
| const struct draw_fetch_info *fetch_info, |
| const struct draw_prim_info *in_prim_info ) |
| { |
| struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; |
| struct draw_context *draw = fpme->draw; |
| struct draw_vertex_shader *vshader = draw->vs.vertex_shader; |
| struct draw_geometry_shader *gshader = draw->gs.geometry_shader; |
| struct draw_prim_info gs_prim_info; |
| struct draw_vertex_info fetched_vert_info; |
| struct draw_vertex_info vs_vert_info; |
| struct draw_vertex_info gs_vert_info; |
| struct draw_vertex_info *vert_info; |
| struct draw_prim_info ia_prim_info; |
| struct draw_vertex_info ia_vert_info; |
| const struct draw_prim_info *prim_info = in_prim_info; |
| boolean free_prim_info = FALSE; |
| unsigned opt = fpme->opt; |
| |
| fetched_vert_info.count = fetch_info->count; |
| fetched_vert_info.vertex_size = fpme->vertex_size; |
| fetched_vert_info.stride = fpme->vertex_size; |
| fetched_vert_info.verts = |
| (struct vertex_header *)MALLOC(fpme->vertex_size * |
| align(fetch_info->count, 4)); |
| if (!fetched_vert_info.verts) { |
| assert(0); |
| return; |
| } |
| if (draw->collect_statistics) { |
| draw->statistics.ia_vertices += prim_info->count; |
| draw->statistics.ia_primitives += |
| u_decomposed_prims_for_vertices(prim_info->prim, fetch_info->count); |
| draw->statistics.vs_invocations += fetch_info->count; |
| } |
| |
| /* Fetch into our vertex buffer. |
| */ |
| fetch( fpme->fetch, fetch_info, (char *)fetched_vert_info.verts ); |
| |
| /* Finished with fetch: |
| */ |
| fetch_info = NULL; |
| vert_info = &fetched_vert_info; |
| |
| /* Run the shader, note that this overwrites the data[] parts of |
| * the pipeline verts. |
| */ |
| if (fpme->opt & PT_SHADE) { |
| draw_vertex_shader_run(vshader, |
| draw->pt.user.vs_constants, |
| draw->pt.user.vs_constants_size, |
| vert_info, |
| &vs_vert_info); |
| |
| FREE(vert_info->verts); |
| vert_info = &vs_vert_info; |
| } |
| |
| if ((fpme->opt & PT_SHADE) && gshader) { |
| draw_geometry_shader_run(gshader, |
| draw->pt.user.gs_constants, |
| draw->pt.user.gs_constants_size, |
| vert_info, |
| prim_info, |
| &vshader->info, |
| &gs_vert_info, |
| &gs_prim_info); |
| |
| FREE(vert_info->verts); |
| vert_info = &gs_vert_info; |
| prim_info = &gs_prim_info; |
| } else { |
| if (draw_prim_assembler_is_required(draw, prim_info, vert_info)) { |
| draw_prim_assembler_run(draw, prim_info, vert_info, |
| &ia_prim_info, &ia_vert_info); |
| |
| if (ia_vert_info.count) { |
| FREE(vert_info->verts); |
| vert_info = &ia_vert_info; |
| prim_info = &ia_prim_info; |
| free_prim_info = TRUE; |
| } |
| } |
| } |
| if (prim_info->count == 0) { |
| debug_printf("GS/IA didn't emit any vertices!\n"); |
| |
| FREE(vert_info->verts); |
| if (free_prim_info) { |
| FREE(prim_info->primitive_lengths); |
| } |
| return; |
| } |
| |
| |
| /* Stream output needs to be done before clipping. |
| * |
| * XXX: Stream output surely needs to respect the prim_info->elt |
| * lists. |
| */ |
| draw_pt_so_emit( fpme->so_emit, vert_info, prim_info ); |
| |
| draw_stats_clipper_primitives(draw, prim_info); |
| |
| /* |
| * if there's no position, need to stop now, or the latter stages |
| * will try to access non-existent position output. |
| */ |
| if (draw_current_shader_position_output(draw) != -1) { |
| |
| if (draw_pt_post_vs_run( fpme->post_vs, vert_info, prim_info )) |
| { |
| opt |= PT_PIPELINE; |
| } |
| |
| /* Do we need to run the pipeline? |
| */ |
| if (opt & PT_PIPELINE) { |
| pipeline( fpme, vert_info, prim_info ); |
| } |
| else { |
| emit( fpme->emit, vert_info, prim_info ); |
| } |
| } |
| FREE(vert_info->verts); |
| if (free_prim_info) { |
| FREE(prim_info->primitive_lengths); |
| } |
| } |
| |
| static void fetch_pipeline_run( struct draw_pt_middle_end *middle, |
| const unsigned *fetch_elts, |
| unsigned fetch_count, |
| const ushort *draw_elts, |
| unsigned draw_count, |
| unsigned prim_flags ) |
| { |
| struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; |
| struct draw_fetch_info fetch_info; |
| struct draw_prim_info prim_info; |
| |
| fetch_info.linear = FALSE; |
| fetch_info.start = 0; |
| fetch_info.elts = fetch_elts; |
| fetch_info.count = fetch_count; |
| |
| prim_info.linear = FALSE; |
| prim_info.start = 0; |
| prim_info.count = draw_count; |
| prim_info.elts = draw_elts; |
| prim_info.prim = fpme->input_prim; |
| prim_info.flags = prim_flags; |
| prim_info.primitive_count = 1; |
| prim_info.primitive_lengths = &draw_count; |
| |
| fetch_pipeline_generic( middle, &fetch_info, &prim_info ); |
| } |
| |
| |
| static void fetch_pipeline_linear_run( struct draw_pt_middle_end *middle, |
| unsigned start, |
| unsigned count, |
| unsigned prim_flags) |
| { |
| struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; |
| struct draw_fetch_info fetch_info; |
| struct draw_prim_info prim_info; |
| |
| fetch_info.linear = TRUE; |
| fetch_info.start = start; |
| fetch_info.count = count; |
| fetch_info.elts = NULL; |
| |
| prim_info.linear = TRUE; |
| prim_info.start = 0; |
| prim_info.count = count; |
| prim_info.elts = NULL; |
| prim_info.prim = fpme->input_prim; |
| prim_info.flags = prim_flags; |
| prim_info.primitive_count = 1; |
| prim_info.primitive_lengths = &count; |
| |
| fetch_pipeline_generic( middle, &fetch_info, &prim_info ); |
| } |
| |
| |
| |
| static boolean fetch_pipeline_linear_run_elts( struct draw_pt_middle_end *middle, |
| unsigned start, |
| unsigned count, |
| const ushort *draw_elts, |
| unsigned draw_count, |
| unsigned prim_flags ) |
| { |
| struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; |
| struct draw_fetch_info fetch_info; |
| struct draw_prim_info prim_info; |
| |
| fetch_info.linear = TRUE; |
| fetch_info.start = start; |
| fetch_info.count = count; |
| fetch_info.elts = NULL; |
| |
| prim_info.linear = FALSE; |
| prim_info.start = 0; |
| prim_info.count = draw_count; |
| prim_info.elts = draw_elts; |
| prim_info.prim = fpme->input_prim; |
| prim_info.flags = prim_flags; |
| prim_info.primitive_count = 1; |
| prim_info.primitive_lengths = &draw_count; |
| |
| fetch_pipeline_generic( middle, &fetch_info, &prim_info ); |
| |
| return TRUE; |
| } |
| |
| |
| |
| static void fetch_pipeline_finish( struct draw_pt_middle_end *middle ) |
| { |
| /* nothing to do */ |
| } |
| |
| static void fetch_pipeline_destroy( struct draw_pt_middle_end *middle ) |
| { |
| struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle; |
| |
| if (fpme->fetch) |
| draw_pt_fetch_destroy( fpme->fetch ); |
| |
| if (fpme->emit) |
| draw_pt_emit_destroy( fpme->emit ); |
| |
| if (fpme->so_emit) |
| draw_pt_so_emit_destroy( fpme->so_emit ); |
| |
| if (fpme->post_vs) |
| draw_pt_post_vs_destroy( fpme->post_vs ); |
| |
| FREE(middle); |
| } |
| |
| |
| struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit( struct draw_context *draw ) |
| { |
| struct fetch_pipeline_middle_end *fpme = CALLOC_STRUCT( fetch_pipeline_middle_end ); |
| if (!fpme) |
| goto fail; |
| |
| fpme->base.prepare = fetch_pipeline_prepare; |
| fpme->base.bind_parameters = fetch_pipeline_bind_parameters; |
| fpme->base.run = fetch_pipeline_run; |
| fpme->base.run_linear = fetch_pipeline_linear_run; |
| fpme->base.run_linear_elts = fetch_pipeline_linear_run_elts; |
| fpme->base.finish = fetch_pipeline_finish; |
| fpme->base.destroy = fetch_pipeline_destroy; |
| |
| fpme->draw = draw; |
| |
| fpme->fetch = draw_pt_fetch_create( draw ); |
| if (!fpme->fetch) |
| goto fail; |
| |
| fpme->post_vs = draw_pt_post_vs_create( draw ); |
| if (!fpme->post_vs) |
| goto fail; |
| |
| fpme->emit = draw_pt_emit_create( draw ); |
| if (!fpme->emit) |
| goto fail; |
| |
| fpme->so_emit = draw_pt_so_emit_create( draw ); |
| if (!fpme->so_emit) |
| goto fail; |
| |
| return &fpme->base; |
| |
| fail: |
| if (fpme) |
| fetch_pipeline_destroy( &fpme->base ); |
| |
| return NULL; |
| } |