fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-24 21:50:12 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

gallium: add a generic vertex (or other) buffer translation module

Browse source
This commit is contained in:
Keith Whitwell 2008-04-15 14:35:29 +01:00
parent 6a26a9c58c
commit c81bbab6f6
4 changed files with 733 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
src/gallium/auxiliary/translate/Makefile Normal file
View file

@ -0,0 +1,12 @@
TOP = ../../../..
include $(TOP)/configs/current
LIBNAME = translate
C_SOURCES = \
translate_generic.c
include ../../Makefile.template
symlinks:

9
src/gallium/auxiliary/translate/SConscript Normal file
View file

@ -0,0 +1,9 @@
Import('*')
cso_cache = env.ConvenienceLibrary(
target = 'translate',
source = [
'translate_generic.c',
])
auxiliaries.insert(0, translate)

82
src/gallium/auxiliary/translate/translate.h Normal file
View file

@ -0,0 +1,82 @@
/*
* Copyright 2008 Tungsten Graphics, inc.
* 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
* on 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 THEIR 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.
*/
/**
* Vertex fetch/store/convert code. This functionality is used in two places:
* 1. Vertex fetch/convert - to grab vertex data from incoming vertex
* arrays and convert to format needed by vertex shaders.
* 2. Vertex store/emit - to convert simple float[][4] vertex attributes
* (which is the organization used throughout the draw/prim pipeline) to
* hardware-specific formats and emit into hardware vertex buffers.
*
*
* Authors:
* Keith Whitwell <keithw@tungstengraphics.com>
*/
#ifndef _TRANSLATE_H
#define _TRANSLATE_H
#include "pipe/p_compiler.h"
#include "pipe/p_format.h"
struct translate_element
{
enum pipe_format input_format;
unsigned input_buffer;
unsigned input_offset;
enum pipe_format output_format;
unsigned output_offset;
};
struct translate {
void (*destroy)( struct translate * );
void (*set_buffer)( struct translate *,
unsigned i,
const void *ptr,
unsigned stride );
void (*run_elts)( struct translate *,
const unsigned *elts,
unsigned count,
void *output_buffer);
};
struct translate *translate_sse2_create( unsigned output_stride,
const struct translate_element *elements,
unsigned nr_elements );
struct translate *translate_generic_create( unsigned output_stride,
const struct translate_element *elements,
unsigned nr_elements );
#endif

630
src/gallium/auxiliary/translate/translate_generic.c Normal file
View file

@ -0,0 +1,630 @@
/**************************************************************************
*
* 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>
*/
#include "pipe/p_util.h"
#include "pipe/p_state.h"
#include "translate.h"
#define DRAW_DBG 0
typedef void (*fetch_func)(const void *ptr, float *attrib);
typedef void (*emit_func)(const float *attrib, void *ptr);
struct translate_generic {
struct translate translate;
struct {
fetch_func fetch;
unsigned buffer;
unsigned input_offset;
emit_func emit;
unsigned output_offset;
char *input_ptr;
unsigned input_stride;
} attrib[PIPE_MAX_ATTRIBS];
unsigned nr_attrib;
unsigned output_stride;
};
static struct translate_generic *translate_generic( struct translate *translate )
{
return (struct translate_generic *)translate;
}
/**
* Fetch a float[4] vertex attribute from memory, doing format/type
* conversion as needed.
*
* This is probably needed/dupliocated elsewhere, eg format
* conversion, texture sampling etc.
*/
#define ATTRIB( NAME, SZ, TYPE, FROM, TO ) \
static void \
fetch_##NAME(const void *ptr, float *attrib) \
{ \
const float defaults[4] = { 0,0,0,1 }; \
int i; \
\
for (i = 0; i < SZ; i++) { \
attrib[i] = FROM(i); \
} \
\
for (; i < 4; i++) { \
attrib[i] = defaults[i]; \
} \
} \
\
static void \
emit_##NAME(const float *attrib, void *ptr) \
{ \
unsigned i; \
TYPE *out = (TYPE *)ptr; \
\
for (i = 0; i < SZ; i++) { \
out[i] = TO(attrib[i]); \
} \
}
#define FROM_64_FLOAT(i) ((float) ((double *) ptr)[i])
#define FROM_32_FLOAT(i) (((float *) ptr)[i])
#define FROM_8_USCALED(i) ((float) ((unsigned char *) ptr)[i])
#define FROM_16_USCALED(i) ((float) ((unsigned short *) ptr)[i])
#define FROM_32_USCALED(i) ((float) ((unsigned int *) ptr)[i])
#define FROM_8_SSCALED(i) ((float) ((char *) ptr)[i])
#define FROM_16_SSCALED(i) ((float) ((short *) ptr)[i])
#define FROM_32_SSCALED(i) ((float) ((int *) ptr)[i])
#define FROM_8_UNORM(i) ((float) ((unsigned char *) ptr)[i] / 255.0f)
#define FROM_16_UNORM(i) ((float) ((unsigned short *) ptr)[i] / 65535.0f)
#define FROM_32_UNORM(i) ((float) ((unsigned int *) ptr)[i] / 4294967295.0f)
#define FROM_8_SNORM(i) ((float) ((char *) ptr)[i] / 127.0f)
#define FROM_16_SNORM(i) ((float) ((short *) ptr)[i] / 32767.0f)
#define FROM_32_SNORM(i) ((float) ((int *) ptr)[i] / 2147483647.0f)
#define TO_64_FLOAT(f) ((double) f)
#define TO_32_FLOAT(f) (f)
#define TO_8_USCALED(f) ((unsigned char) f)
#define TO_16_USCALED(f) ((unsigned short) f)
#define TO_32_USCALED(f) ((unsigned int) f)
#define TO_8_SSCALED(f) ((char) f)
#define TO_16_SSCALED(f) ((short) f)
#define TO_32_SSCALED(f) ((int) f)
#define TO_8_UNORM(f) ((unsigned char) (f * 255.0f))
#define TO_16_UNORM(f) ((unsigned short) (f * 65535.0f))
#define TO_32_UNORM(f) ((unsigned int) (f * 4294967295.0f))
#define TO_8_SNORM(f) ((char) (f * 127.0f))
#define TO_16_SNORM(f) ((short) (f * 32767.0f))
#define TO_32_SNORM(f) ((int) (f * 2147483647.0f))
ATTRIB( R64G64B64A64_FLOAT, 4, double, FROM_64_FLOAT, TO_64_FLOAT )
ATTRIB( R64G64B64_FLOAT, 3, double, FROM_64_FLOAT, TO_64_FLOAT )
ATTRIB( R64G64_FLOAT, 2, double, FROM_64_FLOAT, TO_64_FLOAT )
ATTRIB( R64_FLOAT, 1, double, FROM_64_FLOAT, TO_64_FLOAT )
ATTRIB( R32G32B32A32_FLOAT, 4, float, FROM_32_FLOAT, TO_32_FLOAT )
ATTRIB( R32G32B32_FLOAT, 3, float, FROM_32_FLOAT, TO_32_FLOAT )
ATTRIB( R32G32_FLOAT, 2, float, FROM_32_FLOAT, TO_32_FLOAT )
ATTRIB( R32_FLOAT, 1, float, FROM_32_FLOAT, TO_32_FLOAT )
ATTRIB( R32G32B32A32_USCALED, 4, unsigned, FROM_32_USCALED, TO_32_USCALED )
ATTRIB( R32G32B32_USCALED, 3, unsigned, FROM_32_USCALED, TO_32_USCALED )
ATTRIB( R32G32_USCALED, 2, unsigned, FROM_32_USCALED, TO_32_USCALED )
ATTRIB( R32_USCALED, 1, unsigned, FROM_32_USCALED, TO_32_USCALED )
ATTRIB( R32G32B32A32_SSCALED, 4, int, FROM_32_SSCALED, TO_32_SSCALED )
ATTRIB( R32G32B32_SSCALED, 3, int, FROM_32_SSCALED, TO_32_SSCALED )
ATTRIB( R32G32_SSCALED, 2, int, FROM_32_SSCALED, TO_32_SSCALED )
ATTRIB( R32_SSCALED, 1, int, FROM_32_SSCALED, TO_32_SSCALED )
ATTRIB( R32G32B32A32_UNORM, 4, unsigned, FROM_32_UNORM, TO_32_UNORM )
ATTRIB( R32G32B32_UNORM, 3, unsigned, FROM_32_UNORM, TO_32_UNORM )
ATTRIB( R32G32_UNORM, 2, unsigned, FROM_32_UNORM, TO_32_UNORM )
ATTRIB( R32_UNORM, 1, unsigned, FROM_32_UNORM, TO_32_UNORM )
ATTRIB( R32G32B32A32_SNORM, 4, int, FROM_32_SNORM, TO_32_SNORM )
ATTRIB( R32G32B32_SNORM, 3, int, FROM_32_SNORM, TO_32_SNORM )
ATTRIB( R32G32_SNORM, 2, int, FROM_32_SNORM, TO_32_SNORM )
ATTRIB( R32_SNORM, 1, int, FROM_32_SNORM, TO_32_SNORM )
ATTRIB( R16G16B16A16_USCALED, 4, ushort, FROM_16_USCALED, TO_16_USCALED )
ATTRIB( R16G16B16_USCALED, 3, ushort, FROM_16_USCALED, TO_16_USCALED )
ATTRIB( R16G16_USCALED, 2, ushort, FROM_16_USCALED, TO_16_USCALED )
ATTRIB( R16_USCALED, 1, ushort, FROM_16_USCALED, TO_16_USCALED )
ATTRIB( R16G16B16A16_SSCALED, 4, short, FROM_16_SSCALED, TO_16_SSCALED )
ATTRIB( R16G16B16_SSCALED, 3, short, FROM_16_SSCALED, TO_16_SSCALED )
ATTRIB( R16G16_SSCALED, 2, short, FROM_16_SSCALED, TO_16_SSCALED )
ATTRIB( R16_SSCALED, 1, short, FROM_16_SSCALED, TO_16_SSCALED )
ATTRIB( R16G16B16A16_UNORM, 4, ushort, FROM_16_UNORM, TO_16_UNORM )
ATTRIB( R16G16B16_UNORM, 3, ushort, FROM_16_UNORM, TO_16_UNORM )
ATTRIB( R16G16_UNORM, 2, ushort, FROM_16_UNORM, TO_16_UNORM )
ATTRIB( R16_UNORM, 1, ushort, FROM_16_UNORM, TO_16_UNORM )
ATTRIB( R16G16B16A16_SNORM, 4, short, FROM_16_SNORM, TO_16_SNORM )
ATTRIB( R16G16B16_SNORM, 3, short, FROM_16_SNORM, TO_16_SNORM )
ATTRIB( R16G16_SNORM, 2, short, FROM_16_SNORM, TO_16_SNORM )
ATTRIB( R16_SNORM, 1, short, FROM_16_SNORM, TO_16_SNORM )
ATTRIB( R8G8B8A8_USCALED, 4, ubyte, FROM_8_USCALED, TO_8_USCALED )
ATTRIB( R8G8B8_USCALED, 3, ubyte, FROM_8_USCALED, TO_8_USCALED )
ATTRIB( R8G8_USCALED, 2, ubyte, FROM_8_USCALED, TO_8_USCALED )
ATTRIB( R8_USCALED, 1, ubyte, FROM_8_USCALED, TO_8_USCALED )
ATTRIB( R8G8B8A8_SSCALED, 4, char, FROM_8_SSCALED, TO_8_SSCALED )
ATTRIB( R8G8B8_SSCALED, 3, char, FROM_8_SSCALED, TO_8_SSCALED )
ATTRIB( R8G8_SSCALED, 2, char, FROM_8_SSCALED, TO_8_SSCALED )
ATTRIB( R8_SSCALED, 1, char, FROM_8_SSCALED, TO_8_SSCALED )
ATTRIB( R8G8B8A8_UNORM, 4, ubyte, FROM_8_UNORM, TO_8_UNORM )
ATTRIB( R8G8B8_UNORM, 3, ubyte, FROM_8_UNORM, TO_8_UNORM )
ATTRIB( R8G8_UNORM, 2, ubyte, FROM_8_UNORM, TO_8_UNORM )
ATTRIB( R8_UNORM, 1, ubyte, FROM_8_UNORM, TO_8_UNORM )
ATTRIB( R8G8B8A8_SNORM, 4, char, FROM_8_SNORM, TO_8_SNORM )
ATTRIB( R8G8B8_SNORM, 3, char, FROM_8_SNORM, TO_8_SNORM )
ATTRIB( R8G8_SNORM, 2, char, FROM_8_SNORM, TO_8_SNORM )
ATTRIB( R8_SNORM, 1, char, FROM_8_SNORM, TO_8_SNORM )
ATTRIB( A8R8G8B8_UNORM, 4, ubyte, FROM_8_UNORM, TO_8_UNORM )
//ATTRIB( R8G8B8A8_UNORM, 4, ubyte, FROM_8_UNORM, TO_8_UNORM )
static void
fetch_B8G8R8A8_UNORM(const void *ptr, float *attrib)
{
attrib[2] = FROM_8_UNORM(0);
attrib[1] = FROM_8_UNORM(1);
attrib[0] = FROM_8_UNORM(2);
attrib[3] = FROM_8_UNORM(3);
}
static void
emit_B8G8R8A8_UNORM( const float *attrib, void *ptr)
{
ubyte *out = (ubyte *)ptr;
out[2] = TO_8_UNORM(out[0]);
out[1] = TO_8_UNORM(out[1]);
out[0] = TO_8_UNORM(out[2]);
out[3] = TO_8_UNORM(out[3]);
}
static void
fetch_NULL( const void *ptr, float *attrib )
{
attrib[0] = 0;
attrib[1] = 0;
attrib[2] = 0;
attrib[3] = 1;
}
static void
emit_NULL( const float *attrib, void *ptr )
{
/* do nothing is the only sensible option */
}
static fetch_func get_fetch_func( enum pipe_format format )
{
switch (format) {
case PIPE_FORMAT_R64_FLOAT:
return fetch_R64_FLOAT;
case PIPE_FORMAT_R64G64_FLOAT:
return fetch_R64G64_FLOAT;
case PIPE_FORMAT_R64G64B64_FLOAT:
return fetch_R64G64B64_FLOAT;
case PIPE_FORMAT_R64G64B64A64_FLOAT:
return fetch_R64G64B64A64_FLOAT;
case PIPE_FORMAT_R32_FLOAT:
return fetch_R32_FLOAT;
case PIPE_FORMAT_R32G32_FLOAT:
return fetch_R32G32_FLOAT;
case PIPE_FORMAT_R32G32B32_FLOAT:
return fetch_R32G32B32_FLOAT;
case PIPE_FORMAT_R32G32B32A32_FLOAT:
return fetch_R32G32B32A32_FLOAT;
case PIPE_FORMAT_R32_UNORM:
return fetch_R32_UNORM;
case PIPE_FORMAT_R32G32_UNORM:
return fetch_R32G32_UNORM;
case PIPE_FORMAT_R32G32B32_UNORM:
return fetch_R32G32B32_UNORM;
case PIPE_FORMAT_R32G32B32A32_UNORM:
return fetch_R32G32B32A32_UNORM;
case PIPE_FORMAT_R32_USCALED:
return fetch_R32_USCALED;
case PIPE_FORMAT_R32G32_USCALED:
return fetch_R32G32_USCALED;
case PIPE_FORMAT_R32G32B32_USCALED:
return fetch_R32G32B32_USCALED;
case PIPE_FORMAT_R32G32B32A32_USCALED:
return fetch_R32G32B32A32_USCALED;
case PIPE_FORMAT_R32_SNORM:
return fetch_R32_SNORM;
case PIPE_FORMAT_R32G32_SNORM:
return fetch_R32G32_SNORM;
case PIPE_FORMAT_R32G32B32_SNORM:
return fetch_R32G32B32_SNORM;
case PIPE_FORMAT_R32G32B32A32_SNORM:
return fetch_R32G32B32A32_SNORM;
case PIPE_FORMAT_R32_SSCALED:
return fetch_R32_SSCALED;
case PIPE_FORMAT_R32G32_SSCALED:
return fetch_R32G32_SSCALED;
case PIPE_FORMAT_R32G32B32_SSCALED:
return fetch_R32G32B32_SSCALED;
case PIPE_FORMAT_R32G32B32A32_SSCALED:
return fetch_R32G32B32A32_SSCALED;
case PIPE_FORMAT_R16_UNORM:
return fetch_R16_UNORM;
case PIPE_FORMAT_R16G16_UNORM:
return fetch_R16G16_UNORM;
case PIPE_FORMAT_R16G16B16_UNORM:
return fetch_R16G16B16_UNORM;
case PIPE_FORMAT_R16G16B16A16_UNORM:
return fetch_R16G16B16A16_UNORM;
case PIPE_FORMAT_R16_USCALED:
return fetch_R16_USCALED;
case PIPE_FORMAT_R16G16_USCALED:
return fetch_R16G16_USCALED;
case PIPE_FORMAT_R16G16B16_USCALED:
return fetch_R16G16B16_USCALED;
case PIPE_FORMAT_R16G16B16A16_USCALED:
return fetch_R16G16B16A16_USCALED;
case PIPE_FORMAT_R16_SNORM:
return fetch_R16_SNORM;
case PIPE_FORMAT_R16G16_SNORM:
return fetch_R16G16_SNORM;
case PIPE_FORMAT_R16G16B16_SNORM:
return fetch_R16G16B16_SNORM;
case PIPE_FORMAT_R16G16B16A16_SNORM:
return fetch_R16G16B16A16_SNORM;
case PIPE_FORMAT_R16_SSCALED:
return fetch_R16_SSCALED;
case PIPE_FORMAT_R16G16_SSCALED:
return fetch_R16G16_SSCALED;
case PIPE_FORMAT_R16G16B16_SSCALED:
return fetch_R16G16B16_SSCALED;
case PIPE_FORMAT_R16G16B16A16_SSCALED:
return fetch_R16G16B16A16_SSCALED;
case PIPE_FORMAT_R8_UNORM:
return fetch_R8_UNORM;
case PIPE_FORMAT_R8G8_UNORM:
return fetch_R8G8_UNORM;
case PIPE_FORMAT_R8G8B8_UNORM:
return fetch_R8G8B8_UNORM;
case PIPE_FORMAT_R8G8B8A8_UNORM:
return fetch_R8G8B8A8_UNORM;
case PIPE_FORMAT_R8_USCALED:
return fetch_R8_USCALED;
case PIPE_FORMAT_R8G8_USCALED:
return fetch_R8G8_USCALED;
case PIPE_FORMAT_R8G8B8_USCALED:
return fetch_R8G8B8_USCALED;
case PIPE_FORMAT_R8G8B8A8_USCALED:
return fetch_R8G8B8A8_USCALED;
case PIPE_FORMAT_R8_SNORM:
return fetch_R8_SNORM;
case PIPE_FORMAT_R8G8_SNORM:
return fetch_R8G8_SNORM;
case PIPE_FORMAT_R8G8B8_SNORM:
return fetch_R8G8B8_SNORM;
case PIPE_FORMAT_R8G8B8A8_SNORM:
return fetch_R8G8B8A8_SNORM;
case PIPE_FORMAT_R8_SSCALED:
return fetch_R8_SSCALED;
case PIPE_FORMAT_R8G8_SSCALED:
return fetch_R8G8_SSCALED;
case PIPE_FORMAT_R8G8B8_SSCALED:
return fetch_R8G8B8_SSCALED;
case PIPE_FORMAT_R8G8B8A8_SSCALED:
return fetch_R8G8B8A8_SSCALED;
case PIPE_FORMAT_A8R8G8B8_UNORM:
return fetch_A8R8G8B8_UNORM;
case PIPE_FORMAT_B8G8R8A8_UNORM:
return fetch_B8G8R8A8_UNORM;
default:
assert(0);
return fetch_NULL;
}
}
static emit_func get_emit_func( enum pipe_format format )
{
switch (format) {
case PIPE_FORMAT_R64_FLOAT:
return emit_R64_FLOAT;
case PIPE_FORMAT_R64G64_FLOAT:
return emit_R64G64_FLOAT;
case PIPE_FORMAT_R64G64B64_FLOAT:
return emit_R64G64B64_FLOAT;
case PIPE_FORMAT_R64G64B64A64_FLOAT:
return emit_R64G64B64A64_FLOAT;
case PIPE_FORMAT_R32_FLOAT:
return emit_R32_FLOAT;
case PIPE_FORMAT_R32G32_FLOAT:
return emit_R32G32_FLOAT;
case PIPE_FORMAT_R32G32B32_FLOAT:
return emit_R32G32B32_FLOAT;
case PIPE_FORMAT_R32G32B32A32_FLOAT:
return emit_R32G32B32A32_FLOAT;
case PIPE_FORMAT_R32_UNORM:
return emit_R32_UNORM;
case PIPE_FORMAT_R32G32_UNORM:
return emit_R32G32_UNORM;
case PIPE_FORMAT_R32G32B32_UNORM:
return emit_R32G32B32_UNORM;
case PIPE_FORMAT_R32G32B32A32_UNORM:
return emit_R32G32B32A32_UNORM;
case PIPE_FORMAT_R32_USCALED:
return emit_R32_USCALED;
case PIPE_FORMAT_R32G32_USCALED:
return emit_R32G32_USCALED;
case PIPE_FORMAT_R32G32B32_USCALED:
return emit_R32G32B32_USCALED;
case PIPE_FORMAT_R32G32B32A32_USCALED:
return emit_R32G32B32A32_USCALED;
case PIPE_FORMAT_R32_SNORM:
return emit_R32_SNORM;
case PIPE_FORMAT_R32G32_SNORM:
return emit_R32G32_SNORM;
case PIPE_FORMAT_R32G32B32_SNORM:
return emit_R32G32B32_SNORM;
case PIPE_FORMAT_R32G32B32A32_SNORM:
return emit_R32G32B32A32_SNORM;
case PIPE_FORMAT_R32_SSCALED:
return emit_R32_SSCALED;
case PIPE_FORMAT_R32G32_SSCALED:
return emit_R32G32_SSCALED;
case PIPE_FORMAT_R32G32B32_SSCALED:
return emit_R32G32B32_SSCALED;
case PIPE_FORMAT_R32G32B32A32_SSCALED:
return emit_R32G32B32A32_SSCALED;
case PIPE_FORMAT_R16_UNORM:
return emit_R16_UNORM;
case PIPE_FORMAT_R16G16_UNORM:
return emit_R16G16_UNORM;
case PIPE_FORMAT_R16G16B16_UNORM:
return emit_R16G16B16_UNORM;
case PIPE_FORMAT_R16G16B16A16_UNORM:
return emit_R16G16B16A16_UNORM;
case PIPE_FORMAT_R16_USCALED:
return emit_R16_USCALED;
case PIPE_FORMAT_R16G16_USCALED:
return emit_R16G16_USCALED;
case PIPE_FORMAT_R16G16B16_USCALED:
return emit_R16G16B16_USCALED;
case PIPE_FORMAT_R16G16B16A16_USCALED:
return emit_R16G16B16A16_USCALED;
case PIPE_FORMAT_R16_SNORM:
return emit_R16_SNORM;
case PIPE_FORMAT_R16G16_SNORM:
return emit_R16G16_SNORM;
case PIPE_FORMAT_R16G16B16_SNORM:
return emit_R16G16B16_SNORM;
case PIPE_FORMAT_R16G16B16A16_SNORM:
return emit_R16G16B16A16_SNORM;
case PIPE_FORMAT_R16_SSCALED:
return emit_R16_SSCALED;
case PIPE_FORMAT_R16G16_SSCALED:
return emit_R16G16_SSCALED;
case PIPE_FORMAT_R16G16B16_SSCALED:
return emit_R16G16B16_SSCALED;
case PIPE_FORMAT_R16G16B16A16_SSCALED:
return emit_R16G16B16A16_SSCALED;
case PIPE_FORMAT_R8_UNORM:
return emit_R8_UNORM;
case PIPE_FORMAT_R8G8_UNORM:
return emit_R8G8_UNORM;
case PIPE_FORMAT_R8G8B8_UNORM:
return emit_R8G8B8_UNORM;
case PIPE_FORMAT_R8G8B8A8_UNORM:
return emit_R8G8B8A8_UNORM;
case PIPE_FORMAT_R8_USCALED:
return emit_R8_USCALED;
case PIPE_FORMAT_R8G8_USCALED:
return emit_R8G8_USCALED;
case PIPE_FORMAT_R8G8B8_USCALED:
return emit_R8G8B8_USCALED;
case PIPE_FORMAT_R8G8B8A8_USCALED:
return emit_R8G8B8A8_USCALED;
case PIPE_FORMAT_R8_SNORM:
return emit_R8_SNORM;
case PIPE_FORMAT_R8G8_SNORM:
return emit_R8G8_SNORM;
case PIPE_FORMAT_R8G8B8_SNORM:
return emit_R8G8B8_SNORM;
case PIPE_FORMAT_R8G8B8A8_SNORM:
return emit_R8G8B8A8_SNORM;
case PIPE_FORMAT_R8_SSCALED:
return emit_R8_SSCALED;
case PIPE_FORMAT_R8G8_SSCALED:
return emit_R8G8_SSCALED;
case PIPE_FORMAT_R8G8B8_SSCALED:
return emit_R8G8B8_SSCALED;
case PIPE_FORMAT_R8G8B8A8_SSCALED:
return emit_R8G8B8A8_SSCALED;
case PIPE_FORMAT_A8R8G8B8_UNORM:
return emit_A8R8G8B8_UNORM;
case PIPE_FORMAT_B8G8R8A8_UNORM:
return emit_B8G8R8A8_UNORM;
default:
assert(0);
return emit_NULL;
}
}
/**
* Fetch vertex attributes for 'count' vertices.
*/
static void generic_run_elts( struct translate *translate,
const unsigned *elts,
unsigned count,
void *output_buffer )
{
struct translate_generic *tg = translate_generic(translate);
char *vert = output_buffer;
unsigned nr_attrs = tg->nr_attrib;
unsigned attr;
unsigned i;
/* loop over vertex attributes (vertex shader inputs)
*/
for (i = 0; i < count; i++) {
unsigned elt = *elts++;
for (attr = 0; attr < nr_attrs; attr++) {
float data[4];
const char *src = (tg->attrib[attr].input_ptr +
tg->attrib[attr].input_stride * elt);
char *dst = (vert +
tg->attrib[attr].output_offset);
tg->attrib[attr].fetch( src, data );
tg->attrib[attr].emit( data, dst );
}
vert += tg->output_stride;
}
}
static void generic_set_buffer( struct translate *translate,
unsigned buf,
const void *ptr,
unsigned stride )
{
struct translate_generic *tg = translate_generic(translate);
unsigned i;
for (i = 0; i < tg->nr_attrib; i++) {
if (tg->attrib[i].buffer == buf) {
tg->attrib[i].input_ptr = ((char *)ptr +
tg->attrib[i].input_offset);
tg->attrib[i].input_stride = stride;
}
}
}
static void generic_destroy( struct translate *translate )
{
FREE(translate);
}
struct translate *translate_generic_create( unsigned output_stride,
const struct translate_element *elements,
unsigned nr_elements )
{
struct translate_generic *tg = CALLOC_STRUCT(translate_generic);
unsigned i;
if (tg == NULL)
return NULL;
tg->translate.destroy = generic_destroy;
tg->translate.set_buffer = generic_set_buffer;
tg->translate.run_elts = generic_run_elts;
for (i = 0; i < nr_elements; i++) {
tg->attrib[i].fetch = get_fetch_func(elements[i].input_format);
tg->attrib[i].buffer = elements[i].input_buffer;
tg->attrib[i].input_offset = elements[i].input_offset;
tg->attrib[i].emit = get_emit_func(elements[i].output_format);
tg->attrib[i].output_offset = elements[i].output_offset;
}
tg->nr_attrib = nr_elements;
return &tg->translate;
}