Mesa (master): gallium: added r8g8b8_get/put_tile_rgba()

[Brian Paul]

Module: Mesa
Branch: master
Commit: 97cbaab541e08460cab5bbaa64c873111ff40c0d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=97cbaab541e08460cab5bbaa64c873111ff40c0d

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Sep  8 16:45:34 2009 -0600

gallium: added r8g8b8_get/put_tile_rgba()

---

 src/gallium/auxiliary/util/u_tile.c |   54 ++++++++++++++++++++++++++++++++++-
 1 files changed, 53 insertions(+), 1 deletions(-)

diff --git a/src/gallium/auxiliary/util/u_tile.c b/src/gallium/auxiliary/util/u_tile.c
index 1235a67..0d6489c 100644
--- a/src/gallium/auxiliary/util/u_tile.c
+++ b/src/gallium/auxiliary/util/u_tile.c
@@ -170,7 +170,7 @@ x8r8g8b8_get_tile_rgba(const unsigned *src,
          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(0xff);
+         pRow[3] = 1.0F;
       }
       p += dst_stride;
    }
@@ -394,6 +394,52 @@ r5g6b5_put_tile_rgba(ushort *dst,
 
 
 
+/*** PIPE_FORMAT_R8G8B8_UNORM ***/
+
+static void
+r8g8b8_get_tile_rgba(const ubyte *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] = ubyte_to_float(src[0]);
+         pRow[1] = ubyte_to_float(src[1]);
+         pRow[2] = ubyte_to_float(src[2]);
+         pRow[3] = 1.0f;
+         src += 3;
+      }
+      p += dst_stride;
+   }
+}
+
+
+static void
+r8g8b8_put_tile_rgba(ubyte *dst,
+                     unsigned w, unsigned h,
+                     const float *p,
+                     unsigned src_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      const float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         dst[0] = float_to_ubyte(pRow[0]);
+         dst[1] = float_to_ubyte(pRow[1]);
+         dst[2] = float_to_ubyte(pRow[2]);
+         dst += 3;
+      }
+      p += src_stride;
+   }
+}
+
+
+
 /*** PIPE_FORMAT_Z16_UNORM ***/
 
 /**
@@ -1106,6 +1152,9 @@ pipe_tile_raw_to_rgba(enum pipe_format format,
    case PIPE_FORMAT_R5G6B5_UNORM:
       r5g6b5_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
       break;
+   case PIPE_FORMAT_R8G8B8_UNORM:
+      r8g8b8_get_tile_rgba((ubyte *) src, w, h, dst, dst_stride);
+      break;
    case PIPE_FORMAT_L8_UNORM:
       l8_get_tile_rgba((ubyte *) src, w, h, dst, dst_stride);
       break;
@@ -1222,6 +1271,9 @@ pipe_put_tile_rgba(struct pipe_transfer *pt,
    case PIPE_FORMAT_R5G6B5_UNORM:
       r5g6b5_put_tile_rgba((ushort *) packed, w, h, p, src_stride);
       break;
+   case PIPE_FORMAT_R8G8B8_UNORM:
+      r8g8b8_put_tile_rgba((ubyte *) packed, w, h, p, src_stride);
+      break;
    case PIPE_FORMAT_R8G8B8A8_UNORM:
       assert(0);
       break;