| /************************************************************************** |
| * |
| * 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. |
| * |
| **************************************************************************/ |
| |
| /* |
| * Authors: |
| * Keith Whitwell <keith@tungstengraphics.com> |
| * Brian Paul |
| */ |
| |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| |
| #include "pipe/p_shader_tokens.h" |
| |
| #include "draw_private.h" |
| #include "draw_context.h" |
| #include "draw_vs.h" |
| |
| #include "translate/translate.h" |
| #include "translate/translate_cache.h" |
| |
| #include "tgsi/tgsi_dump.h" |
| #include "tgsi/tgsi_exec.h" |
| |
| DEBUG_GET_ONCE_BOOL_OPTION(gallium_dump_vs, "GALLIUM_DUMP_VS", FALSE) |
| |
| |
| /** |
| * Set a vertex shader constant buffer. |
| * \param slot which constant buffer in [0, PIPE_MAX_CONSTANT_BUFFERS-1] |
| * \param constants the mapped buffer |
| * \param size size of buffer in bytes |
| */ |
| void |
| draw_vs_set_constants(struct draw_context *draw, |
| unsigned slot, |
| const void *constants, |
| unsigned size) |
| { |
| const int alignment = 16; |
| |
| /* check if buffer is 16-byte aligned */ |
| if (((uintptr_t)constants) & (alignment - 1)) { |
| /* if not, copy the constants into a new, 16-byte aligned buffer */ |
| if (size > draw->vs.const_storage_size[slot]) { |
| if (draw->vs.aligned_constant_storage[slot]) { |
| align_free((void *)draw->vs.aligned_constant_storage[slot]); |
| draw->vs.const_storage_size[slot] = 0; |
| } |
| draw->vs.aligned_constant_storage[slot] = |
| align_malloc(size, alignment); |
| if (draw->vs.aligned_constant_storage[slot]) { |
| draw->vs.const_storage_size[slot] = size; |
| } |
| } |
| assert(constants); |
| if (draw->vs.aligned_constant_storage[slot]) { |
| memcpy((void *)draw->vs.aligned_constant_storage[slot], |
| constants, |
| size); |
| } |
| constants = draw->vs.aligned_constant_storage[slot]; |
| } |
| |
| draw->vs.aligned_constants[slot] = constants; |
| } |
| |
| |
| void draw_vs_set_viewport( struct draw_context *draw, |
| const struct pipe_viewport_state *viewport ) |
| { |
| } |
| |
| |
| |
| struct draw_vertex_shader * |
| draw_create_vertex_shader(struct draw_context *draw, |
| const struct pipe_shader_state *shader) |
| { |
| struct draw_vertex_shader *vs = NULL; |
| |
| if (draw->dump_vs) { |
| tgsi_dump(shader->tokens, 0); |
| } |
| |
| #if HAVE_LLVM |
| if (draw->pt.middle.llvm) { |
| vs = draw_create_vs_llvm(draw, shader); |
| } |
| #endif |
| |
| if (!vs) { |
| vs = draw_create_vs_exec( draw, shader ); |
| } |
| |
| if (vs) |
| { |
| uint i; |
| bool found_clipvertex = FALSE; |
| for (i = 0; i < vs->info.num_outputs; i++) { |
| if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_POSITION && |
| vs->info.output_semantic_index[i] == 0) |
| vs->position_output = i; |
| else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_EDGEFLAG && |
| vs->info.output_semantic_index[i] == 0) |
| vs->edgeflag_output = i; |
| else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_CLIPVERTEX && |
| vs->info.output_semantic_index[i] == 0) { |
| found_clipvertex = TRUE; |
| vs->clipvertex_output = i; |
| } else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_CLIPDIST) { |
| if (vs->info.output_semantic_index[i] == 0) |
| vs->clipdistance_output[0] = i; |
| else |
| vs->clipdistance_output[1] = i; |
| } |
| } |
| if (!found_clipvertex) |
| vs->clipvertex_output = vs->position_output; |
| } |
| |
| assert(vs); |
| return vs; |
| } |
| |
| |
| void |
| draw_bind_vertex_shader(struct draw_context *draw, |
| struct draw_vertex_shader *dvs) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| |
| if (dvs) |
| { |
| draw->vs.vertex_shader = dvs; |
| draw->vs.num_vs_outputs = dvs->info.num_outputs; |
| draw->vs.position_output = dvs->position_output; |
| draw->vs.edgeflag_output = dvs->edgeflag_output; |
| draw->vs.clipvertex_output = dvs->clipvertex_output; |
| draw->vs.clipdistance_output[0] = dvs->clipdistance_output[0]; |
| draw->vs.clipdistance_output[1] = dvs->clipdistance_output[1]; |
| dvs->prepare( dvs, draw ); |
| } |
| else { |
| draw->vs.vertex_shader = NULL; |
| draw->vs.num_vs_outputs = 0; |
| } |
| } |
| |
| |
| void |
| draw_delete_vertex_shader(struct draw_context *draw, |
| struct draw_vertex_shader *dvs) |
| { |
| unsigned i; |
| |
| for (i = 0; i < dvs->nr_variants; i++) |
| dvs->variant[i]->destroy( dvs->variant[i] ); |
| |
| dvs->nr_variants = 0; |
| |
| dvs->delete( dvs ); |
| } |
| |
| |
| |
| boolean |
| draw_vs_init( struct draw_context *draw ) |
| { |
| draw->dump_vs = debug_get_option_gallium_dump_vs(); |
| |
| draw->vs.tgsi.machine = tgsi_exec_machine_create(); |
| if (!draw->vs.tgsi.machine) |
| return FALSE; |
| |
| draw->vs.emit_cache = translate_cache_create(); |
| if (!draw->vs.emit_cache) |
| return FALSE; |
| |
| draw->vs.fetch_cache = translate_cache_create(); |
| if (!draw->vs.fetch_cache) |
| return FALSE; |
| |
| return TRUE; |
| } |
| |
| void |
| draw_vs_destroy( struct draw_context *draw ) |
| { |
| uint i; |
| |
| if (draw->vs.fetch_cache) |
| translate_cache_destroy(draw->vs.fetch_cache); |
| |
| if (draw->vs.emit_cache) |
| translate_cache_destroy(draw->vs.emit_cache); |
| |
| for (i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) { |
| if (draw->vs.aligned_constant_storage[i]) { |
| align_free((void *)draw->vs.aligned_constant_storage[i]); |
| } |
| } |
| |
| tgsi_exec_machine_destroy(draw->vs.tgsi.machine); |
| } |
| |
| |
| struct draw_vs_variant * |
| draw_vs_lookup_variant( struct draw_vertex_shader *vs, |
| const struct draw_vs_variant_key *key ) |
| { |
| struct draw_vs_variant *variant; |
| unsigned i; |
| |
| /* Lookup existing variant: |
| */ |
| for (i = 0; i < vs->nr_variants; i++) |
| if (draw_vs_variant_key_compare(key, &vs->variant[i]->key) == 0) |
| return vs->variant[i]; |
| |
| /* Else have to create a new one: |
| */ |
| variant = vs->create_variant( vs, key ); |
| if (variant == NULL) |
| return NULL; |
| |
| /* Add it to our list, could be smarter: |
| */ |
| if (vs->nr_variants < Elements(vs->variant)) { |
| vs->variant[vs->nr_variants++] = variant; |
| } |
| else { |
| vs->last_variant++; |
| vs->last_variant %= Elements(vs->variant); |
| vs->variant[vs->last_variant]->destroy(vs->variant[vs->last_variant]); |
| vs->variant[vs->last_variant] = variant; |
| } |
| |
| /* Done |
| */ |
| return variant; |
| } |
| |
| |
| struct translate * |
| draw_vs_get_fetch( struct draw_context *draw, |
| struct translate_key *key ) |
| { |
| if (!draw->vs.fetch || |
| translate_key_compare(&draw->vs.fetch->key, key) != 0) |
| { |
| translate_key_sanitize(key); |
| draw->vs.fetch = translate_cache_find(draw->vs.fetch_cache, key); |
| } |
| |
| return draw->vs.fetch; |
| } |
| |
| struct translate * |
| draw_vs_get_emit( struct draw_context *draw, |
| struct translate_key *key ) |
| { |
| if (!draw->vs.emit || |
| translate_key_compare(&draw->vs.emit->key, key) != 0) |
| { |
| translate_key_sanitize(key); |
| draw->vs.emit = translate_cache_find(draw->vs.emit_cache, key); |
| } |
| |
| return draw->vs.emit; |
| } |