/**************************************************************************
*
* 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.
* Usable both by drivers and state trackers.
*/
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_rect.h"
#include "util/u_tile.h"
/**
* Move raw block of pixels from transfer object to user memory.
*/
void
pipe_get_tile_raw(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
void *dst, int dst_stride)
{
const void *src;
if (dst_stride == 0)
dst_stride = util_format_get_stride(pt->resource->format, w);
if (u_clip_tile(x, y, &w, &h, &pt->box))
return;
src = pipe->transfer_map(pipe, pt);
assert(src);
if(!src)
return;
util_copy_rect(dst, pt->resource->format, dst_stride, 0, 0, w, h, src, pt->stride, x, y);
pipe->transfer_unmap(pipe, pt);
}
/**
* Move raw block of pixels from user memory to transfer object.
*/
void
pipe_put_tile_raw(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
const void *src, int src_stride)
{
void *dst;
enum pipe_format format = pt->resource->format;
if (src_stride == 0)
src_stride = util_format_get_stride(format, w);
if (u_clip_tile(x, y, &w, &h, &pt->box))
return;
dst = pipe->transfer_map(pipe, pt);
assert(dst);
if(!dst)
return;
util_copy_rect(dst, format, pt->stride, x, y, w, h, src, src_stride, 0, 0);
pipe->transfer_unmap(pipe, pt);
}
/** 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) )
/*** PIPE_FORMAT_Z16_UNORM ***/
/**
* Return each Z value as four floats in [0,1].
*/
static void
z16_get_tile_rgba(const ushort *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
const float scale = 1.0f / 65535.0f;
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = *src++ * scale;
}
p += dst_stride;
}
}
/*** PIPE_FORMAT_Z32_UNORM ***/
/**
* Return each Z value as four floats in [0,1].
*/
static void
z32_get_tile_rgba(const unsigned *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
const double scale = 1.0 / (double) 0xffffffff;
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = (float) (*src++ * scale);
}
p += dst_stride;
}
}
/*** PIPE_FORMAT_Z24_UNORM_S8_UINT ***/
/**
* Return Z component as four float in [0,1]. Stencil part ignored.
*/
static void
s8z24_get_tile_rgba(const unsigned *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
const double scale = 1.0 / ((1 << 24) - 1);
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = (float) (scale * (*src++ & 0xffffff));
}
p += dst_stride;
}
}
/*** PIPE_FORMAT_S8_UINT_Z24_UNORM ***/
/**
* Return Z component as four float in [0,1]. Stencil part ignored.
*/
static void
z24s8_get_tile_rgba(const unsigned *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
const double scale = 1.0 / ((1 << 24) - 1);
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = (float) (scale * (*src++ >> 8));
}
p += dst_stride;
}
}
/*** PIPE_FORMAT_S8X24_UINT ***/
/**
* Return S component as four uint32_t in [0..255]. Z part ignored.
*/
static void
s8x24_get_tile_rgba(const unsigned *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = (float)((*src++ >> 24) & 0xff);
}
p += dst_stride;
}
}
/*** PIPE_FORMAT_X24S8_UINT ***/
/**
* Return S component as four uint32_t in [0..255]. Z part ignored.
*/
static void
x24s8_get_tile_rgba(const unsigned *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = (float)(*src++ & 0xff);
}
p += dst_stride;
}
}
/**
* Return S component as four uint32_t in [0..255]. Z part ignored.
*/
static void
s8_get_tile_rgba(const unsigned char *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = (float)(*src++ & 0xff);
}
p += dst_stride;
}
}
/*** PIPE_FORMAT_Z32_FLOAT ***/
/**
* Return each Z value as four floats in [0,1].
*/
static void
z32f_get_tile_rgba(const float *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = *src++;
}
p += dst_stride;
}
}
/*** PIPE_FORMAT_Z32_FLOAT_S8X24_UINT ***/
/**
* Return each Z value as four floats in [0,1].
*/
static void
z32f_x24s8_get_tile_rgba(const float *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = *src;
src += 2;
}
p += dst_stride;
}
}
/*** PIPE_FORMAT_X32_S8X24_UINT ***/
/**
* Return S component as four uint32_t in [0..255]. Z part ignored.
*/
static void
x32_s8_get_tile_rgba(const unsigned *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
src++;
pRow[0] =
pRow[1] =
pRow[2] =
pRow[3] = (float)(*src++ & 0xff);
}
p += dst_stride;
}
}
void
pipe_tile_raw_to_rgba(enum pipe_format format,
void *src,
uint w, uint h,
float *dst, unsigned dst_stride)
{
switch (format) {
case PIPE_FORMAT_Z16_UNORM:
z16_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_Z32_UNORM:
z32_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
case PIPE_FORMAT_Z24X8_UNORM:
s8z24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_S8_UINT:
s8_get_tile_rgba((unsigned char *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_X24S8_UINT:
s8x24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_S8_UINT_Z24_UNORM:
case PIPE_FORMAT_X8Z24_UNORM:
z24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_S8X24_UINT:
x24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_Z32_FLOAT:
z32f_get_tile_rgba((float *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
z32f_x24s8_get_tile_rgba((float *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_X32_S8X24_UINT:
x32_s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
break;
default:
util_format_read_4f(format,
dst, dst_stride * sizeof(float),
src, util_format_get_stride(format, w),
0, 0, w, h);
}
}
void
pipe_tile_raw_to_unsigned(enum pipe_format format,
void *src,
uint w, uint h,
unsigned *dst, unsigned dst_stride)
{
util_format_read_4ui(format,
dst, dst_stride * sizeof(float),
src, util_format_get_stride(format, w),
0, 0, w, h);
}
void
pipe_tile_raw_to_signed(enum pipe_format format,
void *src,
uint w, uint h,
int *dst, unsigned dst_stride)
{
util_format_read_4i(format,
dst, dst_stride * sizeof(float),
src, util_format_get_stride(format, w),
0, 0, w, h);
}
void
pipe_get_tile_rgba(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
float *p)
{
pipe_get_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);
}
void
pipe_get_tile_rgba_format(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
enum pipe_format format,
float *p)
{
unsigned dst_stride = w * 4;
void *packed;
if (u_clip_tile(x, y, &w, &h, &pt->box)) {
return;
}
packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
if (!packed) {
return;
}
if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) {
assert((x & 1) == 0);
}
pipe_get_tile_raw(pipe, pt, x, y, w, h, packed, 0);
pipe_tile_raw_to_rgba(format, packed, w, h, p, dst_stride);
FREE(packed);
}
void
pipe_put_tile_rgba(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
const float *p)
{
pipe_put_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);
}
void
pipe_put_tile_rgba_format(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
enum pipe_format format,
const float *p)
{
unsigned src_stride = w * 4;
void *packed;
if (u_clip_tile(x, y, &w, &h, &pt->box))
return;
packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
if (!packed)
return;
switch (format) {
case PIPE_FORMAT_Z16_UNORM:
/*z16_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/
break;
case PIPE_FORMAT_Z32_UNORM:
/*z32_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
break;
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
case PIPE_FORMAT_Z24X8_UNORM:
/*s8z24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
break;
case PIPE_FORMAT_S8_UINT_Z24_UNORM:
case PIPE_FORMAT_X8Z24_UNORM:
/*z24s8_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
break;
case PIPE_FORMAT_Z32_FLOAT:
/*z32f_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
break;
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
/*z32f_s8x24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
break;
default:
util_format_write_4f(format,
p, src_stride * sizeof(float),
packed, util_format_get_stride(format, w),
0, 0, w, h);
}
pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);
FREE(packed);
}
void
pipe_put_tile_i_format(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
enum pipe_format format,
const int *p)
{
unsigned src_stride = w * 4;
void *packed;
if (u_clip_tile(x, y, &w, &h, &pt->box))
return;
packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
if (!packed)
return;
util_format_write_4i(format,
p, src_stride * sizeof(float),
packed, util_format_get_stride(format, w),
0, 0, w, h);
pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);
FREE(packed);
}
void
pipe_put_tile_ui_format(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
enum pipe_format format,
const unsigned int *p)
{
unsigned src_stride = w * 4;
void *packed;
if (u_clip_tile(x, y, &w, &h, &pt->box))
return;
packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
if (!packed)
return;
util_format_write_4ui(format,
p, src_stride * sizeof(float),
packed, util_format_get_stride(format, w),
0, 0, w, h);
pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);
FREE(packed);
}
/**
* Get a block of Z values, converted to 32-bit range.
*/
void
pipe_get_tile_z(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
uint *z)
{
const uint dstStride = w;
ubyte *map;
uint *pDest = z;
uint i, j;
enum pipe_format format = pt->resource->format;
if (u_clip_tile(x, y, &w, &h, &pt->box))
return;
map = (ubyte *)pipe->transfer_map(pipe, pt);
if (!map) {
assert(0);
return;
}
switch (format) {
case PIPE_FORMAT_Z32_UNORM:
{
const uint *ptrc
= (const uint *)(map + y * pt->stride + x*4);
for (i = 0; i < h; i++) {
memcpy(pDest, ptrc, 4 * w);
pDest += dstStride;
ptrc += pt->stride/4;
}
}
break;
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
case PIPE_FORMAT_Z24X8_UNORM:
{
const uint *ptrc
= (const uint *)(map + y * pt->stride + x*4);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 24-bit Z to 32-bit Z */
pDest[j] = (ptrc[j] << 8) | ((ptrc[j] >> 16) & 0xff);
}
pDest += dstStride;
ptrc += pt->stride/4;
}
}
break;
case PIPE_FORMAT_S8_UINT_Z24_UNORM:
case PIPE_FORMAT_X8Z24_UNORM:
{
const uint *ptrc
= (const uint *)(map + y * pt->stride + x*4);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 24-bit Z to 32-bit Z */
pDest[j] = (ptrc[j] & 0xffffff00) | ((ptrc[j] >> 24) & 0xff);
}
pDest += dstStride;
ptrc += pt->stride/4;
}
}
break;
case PIPE_FORMAT_Z16_UNORM:
{
const ushort *ptrc
= (const ushort *)(map + y * pt->stride + x*2);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 16-bit Z to 32-bit Z */
pDest[j] = (ptrc[j] << 16) | ptrc[j];
}
pDest += dstStride;
ptrc += pt->stride/2;
}
}
break;
case PIPE_FORMAT_Z32_FLOAT:
{
const float *ptrc = (const float *)(map + y * pt->stride + x*4);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert float Z to 32-bit Z */
if (ptrc[j] <= 0.0) {
pDest[j] = 0;
}
else if (ptrc[j] >= 1.0) {
pDest[j] = 0xffffffff;
}
else {
double z = ptrc[j] * 0xffffffff;
pDest[j] = (uint) z;
}
}
pDest += dstStride;
ptrc += pt->stride/4;
}
}
break;
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
{
const float *ptrc = (const float *)(map + y * pt->stride + x*8);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert float Z to 32-bit Z */
if (ptrc[j] <= 0.0) {
pDest[j*2] = 0;
}
else if (ptrc[j] >= 1.0) {
pDest[j*2] = 0xffffffff;
}
else {
double z = ptrc[j] * 0xffffffff;
pDest[j*2] = (uint) z;
}
}
pDest += dstStride;
ptrc += pt->stride/4;
}
}
break;
default:
assert(0);
}
pipe->transfer_unmap(pipe, pt);
}
void
pipe_put_tile_z(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
const uint *zSrc)
{
const uint srcStride = w;
const uint *ptrc = zSrc;
ubyte *map;
uint i, j;
enum pipe_format format = pt->resource->format;
if (u_clip_tile(x, y, &w, &h, &pt->box))
return;
map = (ubyte *)pipe->transfer_map(pipe, pt);
if (!map) {
assert(0);
return;
}
switch (format) {
case PIPE_FORMAT_Z32_UNORM:
{
uint *pDest = (uint *) (map + y * pt->stride + x*4);
for (i = 0; i < h; i++) {
memcpy(pDest, ptrc, 4 * w);
pDest += pt->stride/4;
ptrc += srcStride;
}
}
break;
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
{
uint *pDest = (uint *) (map + y * pt->stride + x*4);
/*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit Z to 24-bit Z, preserve stencil */
pDest[j] = (pDest[j] & 0xff000000) | ptrc[j] >> 8;
}
pDest += pt->stride/4;
ptrc += srcStride;
}
}
break;
case PIPE_FORMAT_Z24X8_UNORM:
{
uint *pDest = (uint *) (map + y * pt->stride + x*4);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit Z to 24-bit Z (0 stencil) */
pDest[j] = ptrc[j] >> 8;
}
pDest += pt->stride/4;
ptrc += srcStride;
}
}
break;
case PIPE_FORMAT_S8_UINT_Z24_UNORM:
{
uint *pDest = (uint *) (map + y * pt->stride + x*4);
/*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit Z to 24-bit Z, preserve stencil */
pDest[j] = (pDest[j] & 0xff) | (ptrc[j] & 0xffffff00);
}
pDest += pt->stride/4;
ptrc += srcStride;
}
}
break;
case PIPE_FORMAT_X8Z24_UNORM:
{
uint *pDest = (uint *) (map + y * pt->stride + x*4);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit Z to 24-bit Z (0 stencil) */
pDest[j] = ptrc[j] & 0xffffff00;
}
pDest += pt->stride/4;
ptrc += srcStride;
}
}
break;
case PIPE_FORMAT_Z16_UNORM:
{
ushort *pDest = (ushort *) (map + y * pt->stride + x*2);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit Z to 16-bit Z */
pDest[j] = ptrc[j] >> 16;
}
pDest += pt->stride/2;
ptrc += srcStride;
}
}
break;
case PIPE_FORMAT_Z32_FLOAT:
{
float *pDest = (float *) (map + y * pt->stride + x*4);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit integer Z to float Z */
const double scale = 1.0 / 0xffffffffU;
pDest[j] = ptrc[j] * scale;
}
pDest += pt->stride/4;
ptrc += srcStride;
}
}
break;
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
{
float *pDest = (float *) (map + y * pt->stride + x*8);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit integer Z to float Z */
const double scale = 1.0 / 0xffffffffU;
pDest[j*2] = ptrc[j] * scale;
}
pDest += pt->stride/4;
ptrc += srcStride;
}
}
break;
default:
assert(0);
}
pipe->transfer_unmap(pipe, pt);
}
void
pipe_get_tile_ui_format(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
enum pipe_format format,
unsigned int *p)
{
unsigned dst_stride = w * 4;
void *packed;
if (u_clip_tile(x, y, &w, &h, &pt->box)) {
return;
}
packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
if (!packed) {
return;
}
if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) {
assert((x & 1) == 0);
}
pipe_get_tile_raw(pipe, pt, x, y, w, h, packed, 0);
pipe_tile_raw_to_unsigned(format, packed, w, h, p, dst_stride);
FREE(packed);
}
void
pipe_get_tile_i_format(struct pipe_context *pipe,
struct pipe_transfer *pt,
uint x, uint y, uint w, uint h,
enum pipe_format format,
int *p)
{
unsigned dst_stride = w * 4;
void *packed;
if (u_clip_tile(x, y, &w, &h, &pt->box)) {
return;
}
packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
if (!packed) {
return;
}
if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) {
assert((x & 1) == 0);
}
pipe_get_tile_raw(pipe, pt, x, y, w, h, packed, 0);
pipe_tile_raw_to_signed(format, packed, w, h, p, dst_stride);
FREE(packed);
}