From 51abbdd227224c596ae2232ff3137dc3f346d563 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Thu, 3 Jul 2008 14:55:14 -0600
Subject: gallium: added a4r4g4b4_put_tile_rgba()
---
src/gallium/auxiliary/util/p_tile.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
(limited to 'src/gallium/auxiliary/util/p_tile.c')
diff --git a/src/gallium/auxiliary/util/p_tile.c b/src/gallium/auxiliary/util/p_tile.c
index ab603ff6e4..93abef9879 100644
--- a/src/gallium/auxiliary/util/p_tile.c
+++ b/src/gallium/auxiliary/util/p_tile.c
@@ -298,6 +298,33 @@ a4r4g4b4_get_tile_rgba(ushort *src,
}
+static void
+a4r4g4b4_put_tile_rgba(ushort *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) {
+ 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]);
+ r >>= 4;
+ g >>= 4;
+ b >>= 4;
+ a >>= 4;
+ *dst++ = (a << 12) | (r << 16) | (g << 4) | b;
+ }
+ p += src_stride;
+ }
+}
+
+
/*** PIPE_FORMAT_R5G6B5_UNORM ***/
static void
@@ -774,6 +801,10 @@ pipe_put_tile_rgba(struct pipe_context *pipe,
r5g5b5_put_tile_rgba((ushort *) packed, w, h, p, src_stride);
break;
case PIPE_FORMAT_R8G8B8A8_UNORM:
+ assert(0);
+ break;
+ case PIPE_FORMAT_A4R4G4B4_UNORM:
+ a4r4g4b4_put_tile_rgba((ushort *) packed, w, h, p, src_stride);
break;
case PIPE_FORMAT_L8_UNORM:
/*l8_put_tile_rgba((ubyte *) packed, w, h, p, src_stride);*/
--
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