Add MESA_FORMAT_XRGB8888_REV.

5 files changed, 49 insertions, 3 deletions

diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
index 7d64c462b17..329b7950745 100644
--- a/src/mesa/main/formats.c
+++ b/src/mesa/main/formats.c
@@ -133,6 +133,15 @@ static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
       1, 1, 4                      /* BlockWidth/Height,Bytes */
    },
    {
+      MESA_FORMAT_XRGB8888_REV,    /* Name */
+      "MESA_FORMAT_XRGB8888_REV",  /* StrName */
+      GL_RGB,                      /* BaseFormat */
+      GL_UNSIGNED_NORMALIZED,      /* DataType */
+      8, 8, 8, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
       MESA_FORMAT_RGB888,          /* Name */
       "MESA_FORMAT_RGB888",        /* StrName */
       GL_RGB,                      /* BaseFormat */
diff --git a/src/mesa/main/formats.h b/src/mesa/main/formats.h
index d3ac436b1bd..eba28a69bee 100644
--- a/src/mesa/main/formats.h
+++ b/src/mesa/main/formats.h
@@ -55,6 +55,7 @@ typedef enum
    MESA_FORMAT_ARGB8888,	/* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */
    MESA_FORMAT_ARGB8888_REV,	/* BBBB BBBB GGGG GGGG RRRR RRRR AAAA AAAA */
    MESA_FORMAT_XRGB8888,	/* xxxx xxxx RRRR RRRR GGGG GGGG BBBB BBBB */
+   MESA_FORMAT_XRGB8888_REV,	/* BBBB BBBB GGGG GGGG RRRR RRRR xxxx xxxx */
    MESA_FORMAT_RGB888,		/*           RRRR RRRR GGGG GGGG BBBB BBBB */
    MESA_FORMAT_BGR888,		/*           BBBB BBBB GGGG GGGG RRRR RRRR */
    MESA_FORMAT_RGB565,		/*                     RRRR RGGG GGGB BBBB */
diff --git a/src/mesa/main/texfetch.c b/src/mesa/main/texfetch.c
index c431d3a1db5..f4f2be48c37 100644
--- a/src/mesa/main/texfetch.c
+++ b/src/mesa/main/texfetch.c
@@ -376,6 +376,13 @@ texfetch_funcs[MESA_FORMAT_COUNT] =
       store_texel_xrgb8888
    },
    {
+      MESA_FORMAT_XRGB8888_REV,
+      fetch_texel_1d_f_xrgb8888_rev,
+      fetch_texel_2d_f_xrgb8888_rev,
+      fetch_texel_3d_f_xrgb8888_rev,
+      store_texel_xrgb8888_rev,
+   },
+   {
       MESA_FORMAT_RGB888,
       fetch_texel_1d_f_rgb888,
       fetch_texel_2d_f_rgb888,
diff --git a/src/mesa/main/texfetch_tmp.h b/src/mesa/main/texfetch_tmp.h
index 093e0abc495..6fac7ba1e19 100644
--- a/src/mesa/main/texfetch_tmp.h
+++ b/src/mesa/main/texfetch_tmp.h
@@ -559,6 +559,30 @@ static void store_texel_xrgb8888(struct gl_texture_image *texImage,
 #endif
 
 
+/* MESA_FORMAT_XRGB8888_REV **************************************************/
+
+/* Fetch texel from 1D, 2D or 3D xrgb8888_rev texture, return 4 GLfloats */
+static void FETCH(f_xrgb8888_rev)( const struct gl_texture_image *texImage,
+                                   GLint i, GLint j, GLint k, GLfloat *texel )
+{
+   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+   texel[RCOMP] = UBYTE_TO_FLOAT( (s >>  8) & 0xff );
+   texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
+   texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24)        );
+   texel[ACOMP] = 1.0f;
+}
+
+#if DIM == 3
+static void store_texel_xrgb8888_rev(struct gl_texture_image *texImage,
+                                     GLint i, GLint j, GLint k, const void *texel)
+{
+   const GLubyte *rgba = (const GLubyte *) texel;
+   GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+   *dst = PACK_COLOR_8888(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP], 0xff);
+}
+#endif
+
+
 /* MESA_FORMAT_RGB888 ********************************************************/
 
 /* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLchans */
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index 7cf32877139..abb4ed26631 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -1410,7 +1410,8 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
 
    ASSERT(dstFormat == MESA_FORMAT_ARGB8888 ||
           dstFormat == MESA_FORMAT_ARGB8888_REV ||
-          dstFormat == MESA_FORMAT_XRGB8888);
+          dstFormat == MESA_FORMAT_XRGB8888 ||
+          dstFormat == MESA_FORMAT_XRGB8888_REV );
    ASSERT(texelBytes == 4);
 
    if (!ctx->_ImageTransferState &&
@@ -1431,7 +1432,8 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
    }
    else if (!ctx->_ImageTransferState &&
        !srcPacking->SwapBytes &&
-       dstFormat == MESA_FORMAT_ARGB8888_REV &&
+       (dstFormat == MESA_FORMAT_ARGB8888_REV ||
+        dstFormat == MESA_FORMAT_XRGB8888_REV) &&
        baseInternalFormat == GL_RGBA &&
        srcFormat == GL_BGRA &&
        ((srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
@@ -1524,7 +1526,8 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
        */
       if ((littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
           (littleEndian && dstFormat == MESA_FORMAT_XRGB8888) ||
-	  (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV)) {
+	  (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
+	  (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV)) {
 	 dstmap[3] = 3;		/* alpha */
 	 dstmap[2] = 0;		/* red */
 	 dstmap[1] = 1;		/* green */
@@ -1533,6 +1536,7 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
       else {
 	 assert((littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
 		(!littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
+		(littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV) ||
 		(!littleEndian && dstFormat == MESA_FORMAT_XRGB8888));
 	 dstmap[3] = 2;
 	 dstmap[2] = 1;
@@ -3133,6 +3137,7 @@ texstore_funcs[MESA_FORMAT_COUNT] =
    { MESA_FORMAT_ARGB8888, _mesa_texstore_argb8888 },
    { MESA_FORMAT_ARGB8888_REV, _mesa_texstore_argb8888 },
    { MESA_FORMAT_XRGB8888, _mesa_texstore_argb8888 },
+   { MESA_FORMAT_XRGB8888_REV, _mesa_texstore_argb8888 },
    { MESA_FORMAT_RGB888, _mesa_texstore_rgb888 },
    { MESA_FORMAT_BGR888, _mesa_texstore_bgr888 },
    { MESA_FORMAT_RGB565, _mesa_texstore_rgb565 },