/**************************************************************************
*
* 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 "util/u_memory.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;
};
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] = { 0.0f,0.0f,0.0f,1.0f }; \
unsigned 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 FROM_32_FIXED(i) (((int *) ptr)[i] / 65536.0f)
#define TO_64_FLOAT(x) ((double) x)
#define TO_32_FLOAT(x) (x)
#define TO_8_USCALED(x) ((unsigned char) x)
#define TO_16_USCALED(x) ((unsigned short) x)
#define TO_32_USCALED(x) ((unsigned int) x)
#define TO_8_SSCALED(x) ((char) x)
#define TO_16_SSCALED(x) ((short) x)
#define TO_32_SSCALED(x) ((int) x)
#define TO_8_UNORM(x) ((unsigned char) (x * 255.0f))
#define TO_16_UNORM(x) ((unsigned short) (x * 65535.0f))
#define TO_32_UNORM(x) ((unsigned int) (x * 4294967295.0f))
#define TO_8_SNORM(x) ((char) (x * 127.0f))
#define TO_16_SNORM(x) ((short) (x * 32767.0f))
#define TO_32_SNORM(x) ((int) (x * 2147483647.0f))
#define TO_32_FIXED(x) ((int) (x * 65536.0f))
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 )
ATTRIB( R32G32B32A32_FIXED, 4, int, FROM_32_FIXED, TO_32_FIXED )
ATTRIB( R32G32B32_FIXED, 3, int, FROM_32_FIXED, TO_32_FIXED )
ATTRIB( R32G32_FIXED, 2, int, FROM_32_FIXED, TO_32_FIXED )
ATTRIB( R32_FIXED, 1, int, FROM_32_FIXED, TO_32_FIXED )
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(attrib[0]);
out[1] = TO_8_UNORM(attrib[1]);
out[0] = TO_8_UNORM(attrib[2]);
out[3] = TO_8_UNORM(attrib[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;
case PIPE_FORMAT_R32_FIXED:
return &fetch_R32_FIXED;
case PIPE_FORMAT_R32G32_FIXED:
return &fetch_R32G32_FIXED;
case PIPE_FORMAT_R32G32B32_FIXED:
return &fetch_R32G32B32_FIXED;
case PIPE_FORMAT_R32G32B32A32_FIXED:
return &fetch_R32G32B32A32_FIXED;
default:
assert(0);
return &fetch_NULL;
}
}
static emit_func get_emit_func( enum pipe_format format )
{
/* silence warnings */
(void) emit_R32G32B32A32_FIXED;
(void) emit_R32G32B32_FIXED;
(void) emit_R32G32_FIXED;
(void) emit_R32_FIXED;
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 PIPE_CDECL 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 );
if (0) debug_printf("vert %d/%d attr %d: %f %f %f %f\n",
i, elt, attr, data[0], data[1], data[2], data[3]);
tg->attrib[attr].emit( data, dst );
}
vert += tg->translate.key.output_stride;
}
}
static void PIPE_CDECL generic_run( struct translate *translate,
unsigned start,
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 = start + i;
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 );
if (0) debug_printf("vert %d attr %d: %f %f %f %f\n",
i, attr, data[0], data[1], data[2], data[3]);
tg->attrib[attr].emit( data, dst );
}
vert += tg->translate.key.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_release( struct translate *translate )
{
/* Refcount?
*/
FREE(translate);
}
struct translate *translate_generic_create( const struct translate_key *key )
{
struct translate_generic *tg = CALLOC_STRUCT(translate_generic);
unsigned i;
if (tg == NULL)
return NULL;
tg->translate.key = *key;
tg->translate.release = generic_release;
tg->translate.set_buffer = generic_set_buffer;
tg->translate.run_elts = generic_run_elts;
tg->translate.run = generic_run;
for (i = 0; i < key->nr_elements; i++) {
tg->attrib[i].fetch = get_fetch_func(key->element[i].input_format);
tg->attrib[i].buffer = key->element[i].input_buffer;
tg->attrib[i].input_offset = key->element[i].input_offset;
tg->attrib[i].emit = get_emit_func(key->element[i].output_format);
tg->attrib[i].output_offset = key->element[i].output_offset;
}
tg->nr_attrib = key->nr_elements;
return &tg->translate;
}