161 lines
5.2 KiB
C
161 lines
5.2 KiB
C
/*
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* Copyright 2008 Tungsten Graphics, inc.
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* All Rights Reserved.
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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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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
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* TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* Vertex fetch/store/convert code. This functionality is used in two places:
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* 1. Vertex fetch/convert - to grab vertex data from incoming vertex
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* arrays and convert to format needed by vertex shaders.
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* 2. Vertex store/emit - to convert simple float[][4] vertex attributes
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* (which is the organization used throughout the draw/prim pipeline) to
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* hardware-specific formats and emit into hardware vertex buffers.
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*
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*
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* Authors:
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* Keith Whitwell <keithw@tungstengraphics.com>
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*/
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#ifndef _TRANSLATE_H
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#define _TRANSLATE_H
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#include "pipe/p_compiler.h"
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#include "pipe/p_format.h"
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#include "pipe/p_state.h"
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enum translate_element_type {
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TRANSLATE_ELEMENT_NORMAL,
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TRANSLATE_ELEMENT_INSTANCE_ID
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};
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struct translate_element
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{
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enum translate_element_type type;
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enum pipe_format input_format;
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enum pipe_format output_format;
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unsigned input_buffer:8;
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unsigned input_offset:24;
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unsigned instance_divisor;
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unsigned output_offset;
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};
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struct translate_key {
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unsigned output_stride;
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unsigned nr_elements;
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struct translate_element element[PIPE_MAX_ATTRIBS + 1];
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};
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struct translate;
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typedef void (PIPE_CDECL *run_elts_func)(struct translate *,
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const unsigned *elts,
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unsigned count,
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unsigned start_instance,
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unsigned instance_id,
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void *output_buffer);
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typedef void (PIPE_CDECL *run_elts16_func)(struct translate *,
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const uint16_t *elts,
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unsigned count,
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unsigned start_instance,
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unsigned instance_id,
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void *output_buffer);
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typedef void (PIPE_CDECL *run_elts8_func)(struct translate *,
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const uint8_t *elts,
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unsigned count,
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unsigned start_instance,
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unsigned instance_id,
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void *output_buffer);
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typedef void (PIPE_CDECL *run_func)(struct translate *,
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unsigned start,
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unsigned count,
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unsigned start_instance,
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unsigned instance_id,
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void *output_buffer);
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struct translate {
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struct translate_key key;
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void (*release)( struct translate * );
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void (*set_buffer)( struct translate *,
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unsigned i,
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const void *ptr,
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unsigned stride,
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unsigned max_index );
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run_elts_func run_elts;
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run_elts16_func run_elts16;
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run_elts8_func run_elts8;
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run_func run;
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};
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struct translate *translate_create( const struct translate_key *key );
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boolean translate_is_output_format_supported(enum pipe_format format);
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static INLINE int translate_keysize( const struct translate_key *key )
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{
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return 2 * sizeof(int) + key->nr_elements * sizeof(struct translate_element);
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}
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static INLINE int translate_key_compare( const struct translate_key *a,
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const struct translate_key *b )
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{
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int keysize_a = translate_keysize(a);
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int keysize_b = translate_keysize(b);
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if (keysize_a != keysize_b) {
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return keysize_a - keysize_b;
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}
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return memcmp(a, b, keysize_a);
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}
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static INLINE void translate_key_sanitize( struct translate_key *a )
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{
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int keysize = translate_keysize(a);
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char *ptr = (char *)a;
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memset(ptr + keysize, 0, sizeof(*a) - keysize);
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}
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/*******************************************************************************
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* Private:
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*/
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struct translate *translate_sse2_create( const struct translate_key *key );
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struct translate *translate_generic_create( const struct translate_key *key );
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boolean translate_generic_is_output_format_supported(enum pipe_format format);
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#endif
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