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-rw-r--r--src/gallium/auxiliary/util/u_tile.c618
1 files changed, 618 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_tile.c b/src/gallium/auxiliary/util/u_tile.c
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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.
+ * 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_USCALED ***/
+
+/**
+ * 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_USCALED_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_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;
+ }
+}
+
+
+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_USCALED:
+ case PIPE_FORMAT_Z24X8_UNORM:
+ s8z24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
+ break;
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ case PIPE_FORMAT_X8Z24_UNORM:
+ z24s8_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;
+ default:
+ util_format_read_4f(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)
+{
+ unsigned dst_stride = w * 4;
+ void *packed;
+ enum pipe_format format = pt->resource->format;
+
+ 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_get_tile_swizzle(struct pipe_context *pipe,
+ struct pipe_transfer *pt,
+ uint x,
+ uint y,
+ uint w,
+ uint h,
+ uint swizzle_r,
+ uint swizzle_g,
+ uint swizzle_b,
+ uint swizzle_a,
+ enum pipe_format format,
+ float *p)
+{
+ unsigned dst_stride = w * 4;
+ void *packed;
+ uint iy;
+ float rgba01[6];
+
+ 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);
+
+ if (swizzle_r == PIPE_SWIZZLE_RED &&
+ swizzle_g == PIPE_SWIZZLE_GREEN &&
+ swizzle_b == PIPE_SWIZZLE_BLUE &&
+ swizzle_a == PIPE_SWIZZLE_ALPHA) {
+ /* no-op, skip */
+ return;
+ }
+
+ rgba01[PIPE_SWIZZLE_ZERO] = 0.0f;
+ rgba01[PIPE_SWIZZLE_ONE] = 1.0f;
+
+ for (iy = 0; iy < h; iy++) {
+ float *row = p;
+ uint ix;
+
+ for (ix = 0; ix < w; ix++) {
+ rgba01[PIPE_SWIZZLE_RED] = row[0];
+ rgba01[PIPE_SWIZZLE_GREEN] = row[1];
+ rgba01[PIPE_SWIZZLE_BLUE] = row[2];
+ rgba01[PIPE_SWIZZLE_ALPHA] = row[3];
+
+ *row++ = rgba01[swizzle_r];
+ *row++ = rgba01[swizzle_g];
+ *row++ = rgba01[swizzle_b];
+ *row++ = rgba01[swizzle_a];
+ }
+ p += dst_stride;
+ }
+}
+
+
+void
+pipe_put_tile_rgba(struct pipe_context *pipe,
+ struct pipe_transfer *pt,
+ uint x, uint y, uint w, uint h,
+ const float *p)
+{
+ unsigned src_stride = w * 4;
+ void *packed;
+ enum pipe_format format = pt->resource->format;
+
+ 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_USCALED:
+ case PIPE_FORMAT_Z24X8_UNORM:
+ /*s8z24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
+ break;
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ case PIPE_FORMAT_X8Z24_UNORM:
+ /*z24s8_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);
+}
+
+
+/**
+ * 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_USCALED:
+ 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_USCALED_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;
+ 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_USCALED:
+ {
+ 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_USCALED_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;
+ default:
+ assert(0);
+ }
+
+ pipe->transfer_unmap(pipe, pt);
+}
+
+
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