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| /************************************************************************** |
| * |
| * Copyright 2008 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_memory.h" |
| #include "util/u_math.h" |
| #include "util/u_format.h" |
| #include "draw/draw_context.h" |
| #include "draw/draw_private.h" |
| #include "draw/draw_pt.h" |
| #include "translate/translate.h" |
| #include "translate/translate_cache.h" |
| |
| |
| struct pt_fetch { |
| struct draw_context *draw; |
| |
| struct translate *translate; |
| |
| unsigned vertex_size; |
| |
| struct translate_cache *cache; |
| }; |
| |
| |
| /** |
| * Perform the fetch from API vertex elements & vertex buffers, to a |
| * contiguous set of float[4] attributes as required for the |
| * vertex_shader->run_linear() method. |
| * |
| * This is used in all cases except pure passthrough |
| * (draw_pt_fetch_emit.c) which has its own version to translate |
| * directly to hw vertices. |
| * |
| */ |
| void |
| draw_pt_fetch_prepare(struct pt_fetch *fetch, |
| unsigned vs_input_count, |
| unsigned vertex_size, |
| unsigned instance_id_index) |
| { |
| struct draw_context *draw = fetch->draw; |
| unsigned nr_inputs; |
| unsigned i, nr = 0, ei = 0; |
| unsigned dst_offset = 0; |
| unsigned num_extra_inputs = 0; |
| struct translate_key key; |
| |
| fetch->vertex_size = vertex_size; |
| |
| /* Leave the clipmask/edgeflags/pad/vertex_id untouched |
| */ |
| dst_offset += 1 * sizeof(float); |
| /* Just leave the clip[] and pre_clip_pos[] array untouched. |
| */ |
| dst_offset += 8 * sizeof(float); |
| |
| if (instance_id_index != ~0) { |
| num_extra_inputs++; |
| } |
| |
| assert(draw->pt.nr_vertex_elements + num_extra_inputs >= vs_input_count); |
| |
| nr_inputs = MIN2(vs_input_count, draw->pt.nr_vertex_elements + num_extra_inputs); |
| |
| for (i = 0; i < nr_inputs; i++) { |
| if (i == instance_id_index) { |
| key.element[nr].type = TRANSLATE_ELEMENT_INSTANCE_ID; |
| key.element[nr].input_format = PIPE_FORMAT_R32_USCALED; |
| key.element[nr].output_format = PIPE_FORMAT_R32_USCALED; |
| key.element[nr].output_offset = dst_offset; |
| |
| dst_offset += sizeof(uint); |
| } else if (util_format_is_pure_sint(draw->pt.vertex_element[i].src_format)) { |
| key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; |
| key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; |
| key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; |
| key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; |
| key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; |
| key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_SINT; |
| key.element[nr].output_offset = dst_offset; |
| |
| ei++; |
| dst_offset += 4 * sizeof(int); |
| } else if (util_format_is_pure_uint(draw->pt.vertex_element[i].src_format)) { |
| key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; |
| key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; |
| key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; |
| key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; |
| key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; |
| key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_UINT; |
| key.element[nr].output_offset = dst_offset; |
| |
| ei++; |
| dst_offset += 4 * sizeof(unsigned); |
| } else { |
| key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; |
| key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; |
| key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; |
| key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; |
| key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; |
| key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
| key.element[nr].output_offset = dst_offset; |
| |
| ei++; |
| dst_offset += 4 * sizeof(float); |
| } |
| |
| nr++; |
| } |
| |
| assert(dst_offset <= vertex_size); |
| |
| key.nr_elements = nr; |
| key.output_stride = vertex_size; |
| |
| if (!fetch->translate || |
| translate_key_compare(&fetch->translate->key, &key) != 0) |
| { |
| translate_key_sanitize(&key); |
| fetch->translate = translate_cache_find(fetch->cache, &key); |
| } |
| } |
| |
| |
| void |
| draw_pt_fetch_run(struct pt_fetch *fetch, |
| const unsigned *elts, |
| unsigned count, |
| char *verts) |
| { |
| struct draw_context *draw = fetch->draw; |
| struct translate *translate = fetch->translate; |
| unsigned i; |
| |
| for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { |
| translate->set_buffer(translate, |
| i, |
| ((char *)draw->pt.user.vbuffer[i].map + |
| draw->pt.vertex_buffer[i].buffer_offset), |
| draw->pt.vertex_buffer[i].stride, |
| draw->pt.max_index); |
| } |
| |
| translate->run_elts( translate, |
| elts, |
| count, |
| draw->start_instance, |
| draw->instance_id, |
| verts ); |
| } |
| |
| |
| void |
| draw_pt_fetch_run_linear(struct pt_fetch *fetch, |
| unsigned start, |
| unsigned count, |
| char *verts) |
| { |
| struct draw_context *draw = fetch->draw; |
| struct translate *translate = fetch->translate; |
| unsigned i; |
| |
| for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { |
| translate->set_buffer(translate, |
| i, |
| ((char *)draw->pt.user.vbuffer[i].map + |
| draw->pt.vertex_buffer[i].buffer_offset), |
| draw->pt.vertex_buffer[i].stride, |
| draw->pt.max_index); |
| } |
| |
| translate->run( translate, |
| start, |
| count, |
| draw->start_instance, |
| draw->instance_id, |
| verts ); |
| } |
| |
| |
| struct pt_fetch * |
| draw_pt_fetch_create(struct draw_context *draw) |
| { |
| struct pt_fetch *fetch = CALLOC_STRUCT(pt_fetch); |
| if (!fetch) |
| return NULL; |
| |
| fetch->draw = draw; |
| fetch->cache = translate_cache_create(); |
| if (!fetch->cache) { |
| FREE(fetch); |
| return NULL; |
| } |
| |
| return fetch; |
| } |
| |
| |
| void |
| draw_pt_fetch_destroy(struct pt_fetch *fetch) |
| { |
| if (fetch->cache) |
| translate_cache_destroy(fetch->cache); |
| |
| FREE(fetch); |
| } |