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|
/**************************************************************************
*
* 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.
*
**************************************************************************/
/**
* RGBA/float tile get/put functions.
* XXX eventually this should go into a utility library usable by
* the state tracker too.
* Then, remove pipe->get/put_tile_rgba()
*/
#include "pipe/p_defines.h"
#include "pipe/p_util.h"
#include "pipe/p_inlines.h"
#include "sp_rgba_tile.h"
/** Convert short in [-32768,32767] to GLfloat in [-1.0,1.0] */
#define SHORT_TO_FLOAT(S) ((2.0F * (S) + 1.0F) * (1.0F/65535.0F))
#define UNCLAMPED_FLOAT_TO_SHORT(us, f) \
us = ( (short) ( CLAMP((f), -1.0, 1.0) * 32767.0F) )
#define CLIP_TILE \
do { \
if (x >= ps->width) \
return; \
if (y >= ps->height) \
return; \
if (x + w > ps->width) \
w = ps->width - x; \
if (y + h > ps->height) \
h = ps->height - y; \
} while(0)
/*** PIPE_FORMAT_A8R8G8B8_UNORM ***/
static void
a8r8g8b8_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const unsigned *src
= ((const unsigned *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_A8R8G8B8_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
const unsigned pixel = src[j];
pRow[0] = UBYTE_TO_FLOAT((pixel >> 16) & 0xff);
pRow[1] = UBYTE_TO_FLOAT((pixel >> 8) & 0xff);
pRow[2] = UBYTE_TO_FLOAT((pixel >> 0) & 0xff);
pRow[3] = UBYTE_TO_FLOAT((pixel >> 24) & 0xff);
pRow += 4;
}
src += ps->pitch;
p += w0 * 4;
}
}
static void
a8r8g8b8_put_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
const float *p)
{
unsigned *dst
= ((unsigned *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_A8R8G8B8_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
const float *pRow = p;
for (j = 0; j < w; j++) {
unsigned r, g, b, a;
UNCLAMPED_FLOAT_TO_UBYTE(r, pRow[0]);
UNCLAMPED_FLOAT_TO_UBYTE(g, pRow[1]);
UNCLAMPED_FLOAT_TO_UBYTE(b, pRow[2]);
UNCLAMPED_FLOAT_TO_UBYTE(a, pRow[3]);
dst[j] = (a << 24) | (r << 16) | (g << 8) | b;
pRow += 4;
}
dst += ps->pitch;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_B8G8R8A8_UNORM ***/
static void
b8g8r8a8_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const unsigned *src
= ((const unsigned *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_B8G8R8A8_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
const unsigned pixel = src[j];
pRow[0] = UBYTE_TO_FLOAT((pixel >> 8) & 0xff);
pRow[1] = UBYTE_TO_FLOAT((pixel >> 16) & 0xff);
pRow[2] = UBYTE_TO_FLOAT((pixel >> 24) & 0xff);
pRow[3] = UBYTE_TO_FLOAT((pixel >> 0) & 0xff);
pRow += 4;
}
src += ps->pitch;
p += w0 * 4;
}
}
static void
b8g8r8a8_put_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
const float *p)
{
unsigned *dst
= ((unsigned *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_B8G8R8A8_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
const float *pRow = p;
for (j = 0; j < w; j++) {
unsigned r, g, b, a;
UNCLAMPED_FLOAT_TO_UBYTE(r, pRow[0]);
UNCLAMPED_FLOAT_TO_UBYTE(g, pRow[1]);
UNCLAMPED_FLOAT_TO_UBYTE(b, pRow[2]);
UNCLAMPED_FLOAT_TO_UBYTE(a, pRow[3]);
dst[j] = (b << 24) | (g << 16) | (r << 8) | a;
pRow += 4;
}
dst += ps->pitch;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_A1R5G5B5_UNORM ***/
static void
a1r5g5b5_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const ushort *src
= ((const ushort *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
assert(ps->format == PIPE_FORMAT_A1R5G5B5_UNORM);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
const ushort pixel = src[j];
p[0] = ((pixel >> 10) & 0x1f) * (1.0f / 31.0f);
p[1] = ((pixel >> 5) & 0x1f) * (1.0f / 31.0f);
p[2] = ((pixel ) & 0x1f) * (1.0f / 31.0f);
p[3] = ((pixel >> 15) ) * 1.0f;
p += 4;
}
src += ps->pitch;
}
}
/*** PIPE_FORMAT_A4R4G4B4_UNORM ***/
static void
a4r4g4b4_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const ushort *src
= ((const ushort *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
assert(ps->format == PIPE_FORMAT_A4R4G4B4_UNORM);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
const ushort pixel = src[j];
p[0] = ((pixel >> 8) & 0xf) * (1.0f / 15.0f);
p[1] = ((pixel >> 4) & 0xf) * (1.0f / 15.0f);
p[2] = ((pixel ) & 0xf) * (1.0f / 15.0f);
p[3] = ((pixel >> 12) ) * (1.0f / 15.0f);
p += 4;
}
src += ps->pitch;
}
}
/*** PIPE_FORMAT_R5G6B5_UNORM ***/
static void
r5g6b5_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const ushort *src
= ((const ushort *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
assert(ps->format == PIPE_FORMAT_R5G6B5_UNORM);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
const ushort pixel = src[j];
p[0] = ((pixel >> 11) & 0x1f) * (1.0f / 31.0f);
p[1] = ((pixel >> 5) & 0x3f) * (1.0f / 63.0f);
p[2] = ((pixel ) & 0x1f) * (1.0f / 31.0f);
p[3] = 1.0f;
p += 4;
}
src += ps->pitch;
}
}
static void
r5g5b5_put_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
const float *p)
{
ushort *dst
= ((ushort *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_R5G6B5_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
const float *pRow = p;
for (j = 0; j < w; j++) {
uint r = (uint) (CLAMP(pRow[0], 0.0, 1.0) * 31.0);
uint g = (uint) (CLAMP(pRow[1], 0.0, 1.0) * 63.0);
uint b = (uint) (CLAMP(pRow[2], 0.0, 1.0) * 31.0);
dst[j] = (r << 11) | (g << 5) | (b);
pRow += 4;
}
dst += ps->pitch;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_Z16_UNORM ***/
/**
* Return each Z value as four floats in [0,1].
*/
static void
z16_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const ushort *src
= ((const ushort *) (ps->map))
+ y * ps->pitch + x;
const float scale = 1.0f / 65535.0f;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_Z16_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
pRow[j * 4 + 0] =
pRow[j * 4 + 1] =
pRow[j * 4 + 2] =
pRow[j * 4 + 3] = src[j] * scale;
}
src += ps->pitch;
p += 4 * w0;
}
}
/*** PIPE_FORMAT_U_L8 ***/
static void
l8_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const ubyte *src
= ((const ubyte *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_U_L8);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
pRow[0] =
pRow[1] =
pRow[2] = UBYTE_TO_FLOAT(src[j]);
pRow[3] = 1.0;
pRow += 4;
}
src += ps->pitch;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_U_A8 ***/
static void
a8_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const ubyte *src
= ((const ubyte *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_U_A8);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
pRow[0] =
pRow[1] =
pRow[2] = 0.0;
pRow[3] = UBYTE_TO_FLOAT(src[j]);
pRow += 4;
}
src += ps->pitch;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_R16G16B16A16_SNORM ***/
static void
r16g16b16a16_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const short *src
= ((const short *) (ps->map))
+ (y * ps->pitch + x) * 4;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_R16G16B16A16_SNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
const short *pixel = src;
for (j = 0; j < w; j++) {
pRow[0] = SHORT_TO_FLOAT(pixel[0]);
pRow[1] = SHORT_TO_FLOAT(pixel[1]);
pRow[2] = SHORT_TO_FLOAT(pixel[2]);
pRow[3] = SHORT_TO_FLOAT(pixel[3]);
pRow += 4;
pixel += 4;
}
src += ps->pitch * 4;
p += w0 * 4;
}
}
static void
r16g16b16a16_put_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
const float *p)
{
short *dst
= ((short *) (ps->map))
+ (y * ps->pitch + x) * 4;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_R16G16B16A16_SNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
const float *pRow = p;
for (j = 0; j < w; j++) {
short r, g, b, a;
UNCLAMPED_FLOAT_TO_SHORT(r, pRow[0]);
UNCLAMPED_FLOAT_TO_SHORT(g, pRow[1]);
UNCLAMPED_FLOAT_TO_SHORT(b, pRow[2]);
UNCLAMPED_FLOAT_TO_SHORT(a, pRow[3]);
dst[j*4+0] = r;
dst[j*4+1] = g;
dst[j*4+2] = b;
dst[j*4+3] = a;
pRow += 4;
}
dst += ps->pitch * 4;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_U_I8 ***/
static void
i8_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const ubyte *src
= ((const ubyte *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_U_I8);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = UBYTE_TO_FLOAT(src[j]);
pRow += 4;
}
src += ps->pitch;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_U_A8_L8 ***/
static void
a8_l8_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const ushort *src
= ((const ushort *) (ps->map))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_U_A8_L8);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
const ushort p = src[j];
pRow[0] =
pRow[1] =
pRow[2] = UBYTE_TO_FLOAT(p & 0xff);
pRow[3] = UBYTE_TO_FLOAT(p >> 8);
pRow += 4;
}
src += ps->pitch;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_Z32_UNORM ***/
/**
* Return each Z value as four floats in [0,1].
*/
static void
z32_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const uint *src
= ((const uint *) (ps->map))
+ y * ps->pitch + x;
const double scale = 1.0 / (double) 0xffffffff;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_Z16_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
pRow[j * 4 + 0] =
pRow[j * 4 + 1] =
pRow[j * 4 + 2] =
pRow[j * 4 + 3] = (float) (scale * src[j]);
}
src += ps->pitch;
p += 4 * w0;
}
}
/*** PIPE_FORMAT_S8Z24_UNORM ***/
/**
* Return Z component as four float in [0,1]. Stencil part ignored.
*/
static void
s8z24_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const uint *src
= ((const uint *) (ps->map))
+ y * ps->pitch + x;
const double scale = 1.0 / ((1 << 24) - 1);
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_S8Z24_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
pRow[j * 4 + 0] =
pRow[j * 4 + 1] =
pRow[j * 4 + 2] =
pRow[j * 4 + 3] = (float) (scale * (src[j] & 0xffffff));
}
src += ps->pitch;
p += 4 * w0;
}
}
/*** PIPE_FORMAT_Z24S8_UNORM ***/
/**
* Return Z component as four float in [0,1]. Stencil part ignored.
*/
static void
z24s8_get_tile_rgba(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
float *p)
{
const uint *src
= ((const uint *) (ps->map))
+ y * ps->pitch + x;
const double scale = 1.0 / ((1 << 24) - 1);
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_Z24S8_UNORM);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
pRow[j * 4 + 0] =
pRow[j * 4 + 1] =
pRow[j * 4 + 2] =
pRow[j * 4 + 3] = (float) (scale * (src[j] >> 8));
}
src += ps->pitch;
p += 4 * w0;
}
}
void
softpipe_get_tile_rgba(struct pipe_context *pipe,
struct pipe_surface *ps,
uint x, uint y, uint w, uint h,
float *p)
{
switch (ps->format) {
case PIPE_FORMAT_A8R8G8B8_UNORM:
a8r8g8b8_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_B8G8R8A8_UNORM:
b8g8r8a8_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_A1R5G5B5_UNORM:
a1r5g5b5_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_A4R4G4B4_UNORM:
a4r4g4b4_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_R5G6B5_UNORM:
r5g6b5_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_U_L8:
l8_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_U_A8:
a8_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_U_I8:
i8_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_U_A8_L8:
a8_l8_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_R16G16B16A16_SNORM:
r16g16b16a16_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_Z16_UNORM:
z16_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_Z32_UNORM:
z32_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_S8Z24_UNORM:
s8z24_get_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_Z24S8_UNORM:
z24s8_get_tile_rgba(ps, x, y, w, h, p);
break;
default:
assert(0);
}
}
void
softpipe_put_tile_rgba(struct pipe_context *pipe,
struct pipe_surface *ps,
uint x, uint y, uint w, uint h,
const float *p)
{
switch (ps->format) {
case PIPE_FORMAT_A8R8G8B8_UNORM:
a8r8g8b8_put_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_B8G8R8A8_UNORM:
b8g8r8a8_put_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_A1R5G5B5_UNORM:
/*a1r5g5b5_put_tile_rgba(ps, x, y, w, h, p);*/
break;
case PIPE_FORMAT_R5G6B5_UNORM:
r5g5b5_put_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_R8G8B8A8_UNORM:
break;
case PIPE_FORMAT_U_L8:
/*l8_put_tile_rgba(ps, x, y, w, h, p);*/
break;
case PIPE_FORMAT_U_A8:
/*a8_put_tile_rgba(ps, x, y, w, h, p);*/
break;
case PIPE_FORMAT_U_I8:
/*i8_put_tile_rgba(ps, x, y, w, h, p);*/
break;
case PIPE_FORMAT_U_A8_L8:
/*a8_l8_put_tile_rgba(ps, x, y, w, h, p);*/
break;
case PIPE_FORMAT_R16G16B16A16_SNORM:
r16g16b16a16_put_tile_rgba(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_Z16_UNORM:
/*z16_put_tile_rgba(ps, x, y, w, h, p);*/
break;
case PIPE_FORMAT_Z32_UNORM:
/*z32_put_tile_rgba(ps, x, y, w, h, p);*/
break;
case PIPE_FORMAT_S8Z24_UNORM:
/*s8z24_put_tile_rgba(ps, x, y, w, h, p);*/
break;
case PIPE_FORMAT_Z24S8_UNORM:
/*z24s8_put_tile_rgba(ps, x, y, w, h, p);*/
break;
default:
assert(0);
}
}
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