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authorBrian <brian.paul@tungstengraphics.com>2007-12-15 16:42:22 -0700
committerBrian <brian.paul@tungstengraphics.com>2007-12-15 16:42:22 -0700
commitbccc4c5c0116987041dec2327ddb43eff1bcfadf (patch)
treec10ac790d52bde109bd544af8dbd592e1e18c2b7 /src/mesa/pipe/util
parentde1201a0ba05068ccdc731f0a79395ce58b9121a (diff)
Re-usable tile get/put functions
Diffstat (limited to 'src/mesa/pipe/util')
-rw-r--r--src/mesa/pipe/util/p_tile.c834
-rw-r--r--src/mesa/pipe/util/p_tile.h81
2 files changed, 915 insertions, 0 deletions
diff --git a/src/mesa/pipe/util/p_tile.c b/src/mesa/pipe/util/p_tile.c
new file mode 100644
index 0000000000..8bc3c22c83
--- /dev/null
+++ b/src/mesa/pipe/util/p_tile.c
@@ -0,0 +1,834 @@
+/**************************************************************************
+ *
+ * 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.
+ * Surfaces should already be in a mapped state.
+ */
+
+
+#include "pipe/p_defines.h"
+#include "pipe/p_util.h"
+#include "pipe/p_inlines.h"
+
+#include "p_tile.h"
+
+
+
+/**
+ * Move raw block of pixels from surface to user memory.
+ * This should be usable by any hw driver that has mappable surfaces.
+ */
+void
+pipe_get_tile_raw(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h,
+ void *p, int dst_stride)
+{
+ const uint cpp = ps->cpp;
+ const ubyte *pSrc;
+ const uint src_stride = ps->pitch * cpp;
+ ubyte *pDest;
+ uint i;
+
+ assert(ps->map);
+
+ if (dst_stride == 0) {
+ dst_stride = w * cpp;
+ }
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ pSrc = ps->map + (y * ps->pitch + x) * cpp;
+ pDest = (ubyte *) p;
+
+ for (i = 0; i < h; i++) {
+ memcpy(pDest, pSrc, w * cpp);
+ pDest += dst_stride;
+ pSrc += src_stride;
+ }
+}
+
+
+/**
+ * Move raw block of pixels from user memory to surface.
+ * This should be usable by any hw driver that has mappable surfaces.
+ */
+void
+pipe_put_tile_raw(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h,
+ const void *p, int src_stride)
+{
+ const uint cpp = ps->cpp;
+ const ubyte *pSrc;
+ const uint dst_stride = ps->pitch * cpp;
+ ubyte *pDest;
+ uint i;
+
+ assert(ps->map);
+
+ if (src_stride == 0) {
+ src_stride = w * cpp;
+ }
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ pSrc = (const ubyte *) p;
+ pDest = ps->map + (y * ps->pitch + x) * cpp;
+
+ for (i = 0; i < h; i++) {
+ memcpy(pDest, pSrc, w * cpp);
+ pDest += dst_stride;
+ pSrc += src_stride;
+ }
+}
+
+
+
+
+/** 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_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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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);
+
+ if (pipe_clip_tile(x, y, &w, &h, ps))
+ return;
+
+ 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
+pipe_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
+pipe_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);
+ }
+}
diff --git a/src/mesa/pipe/util/p_tile.h b/src/mesa/pipe/util/p_tile.h
new file mode 100644
index 0000000000..cd8124bf11
--- /dev/null
+++ b/src/mesa/pipe/util/p_tile.h
@@ -0,0 +1,81 @@
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+#ifndef P_TILE_H
+#define P_TILE_H
+
+#include "pipe/p_compiler.h"
+
+struct pipe_context;
+struct pipe_surface;
+
+
+/**
+ * Clip tile against surface dims.
+ * \return TRUE if tile is totally clipped, FALSE otherwise
+ */
+static INLINE boolean
+pipe_clip_tile(uint x, uint y, uint *w, uint *h, const struct pipe_surface *ps)
+{
+ if (x >= ps->width)
+ return TRUE;
+ if (y >= ps->height)
+ return TRUE;
+ if (x + *w > ps->width)
+ *w = ps->width - x;
+ if (y + *h > ps->height)
+ *h = ps->height - y;
+ return FALSE;
+}
+
+
+extern void
+pipe_get_tile_raw(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h,
+ void *p, int dst_stride);
+
+extern void
+pipe_put_tile_raw(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h,
+ const void *p, int src_stride);
+
+
+extern void
+pipe_get_tile_rgba(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h,
+ float *p);
+
+extern void
+pipe_put_tile_rgba(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h,
+ const float *p);
+
+#endif