mesa: added MESA_FORMAT_XRGB8888

src/mesa/main/formats.c

@@ -114,6 +114,14 @@ static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
       0, 0, 0, 0, 0,               /* Lum/Int/Index/Depth/StencilBits */
       1, 1, 4                      /* BlockWidth/Height,Bytes */
    },
+   {
+      MESA_FORMAT_XRGB8888,        /* Name */
+      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 */
       GL_RGB,                      /* BaseFormat */
@@ -799,6 +807,7 @@ _mesa_format_to_type_and_comps(gl_format format,
    case MESA_FORMAT_RGBA8888_REV:
    case MESA_FORMAT_ARGB8888:
    case MESA_FORMAT_ARGB8888_REV:
+   case MESA_FORMAT_XRGB8888:
       *datatype = GL_UNSIGNED_BYTE;
       *comps = 4;
       return;

src/mesa/main/formats.h

@@ -54,6 +54,7 @@ typedef enum
    MESA_FORMAT_RGBA8888_REV,	/* AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */
    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_RGB888,		/*           RRRR RRRR GGGG GGGG BBBB BBBB */
    MESA_FORMAT_BGR888,		/*           BBBB BBBB GGGG GGGG RRRR RRRR */
    MESA_FORMAT_RGB565,		/*                     RRRR RGGG GGGB BBBB */

src/mesa/main/texfetch.c

@@ -368,6 +368,13 @@ texfetch_funcs[MESA_FORMAT_COUNT] =
       fetch_texel_3d_f_argb8888_rev,
       store_texel_argb8888_rev
    },
+   {
+      MESA_FORMAT_XRGB8888,
+      fetch_texel_1d_f_xrgb8888,
+      fetch_texel_2d_f_xrgb8888,
+      fetch_texel_3d_f_xrgb8888,
+      store_texel_xrgb8888
+   },
    {
       MESA_FORMAT_RGB888,
       fetch_texel_1d_f_rgb888,

src/mesa/main/texfetch_tmp.h

@@ -535,6 +535,30 @@ static void store_texel_argb8888_rev(struct gl_texture_image *texImage,
 #endif
 
 
+/* MESA_FORMAT_XRGB8888 ******************************************************/
+
+/* Fetch texel from 1D, 2D or 3D xrgb8888 texture, return 4 GLchans */
+static void FETCH(f_xrgb8888)( 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 >> 16) & 0xff );
+   texel[GCOMP] = UBYTE_TO_FLOAT( (s >>  8) & 0xff );
+   texel[BCOMP] = UBYTE_TO_FLOAT( (s      ) & 0xff );
+   texel[ACOMP] = 1.0f;
+}
+
+#if DIM == 3
+static void store_texel_xrgb8888(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(0xff, rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
+}
+#endif
+
+
 /* MESA_FORMAT_RGB888 ********************************************************/
 
 /* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLchans */

src/mesa/main/texstore.c

@@ -1344,12 +1344,14 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
    const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
 
    ASSERT(dstFormat == MESA_FORMAT_ARGB8888 ||
-          dstFormat == MESA_FORMAT_ARGB8888_REV);
+          dstFormat == MESA_FORMAT_ARGB8888_REV ||
+          dstFormat == MESA_FORMAT_XRGB8888);
    ASSERT(texelBytes == 4);
 
    if (!ctx->_ImageTransferState &&
        !srcPacking->SwapBytes &&
-       dstFormat == MESA_FORMAT_ARGB8888 &&
+       (dstFormat == MESA_FORMAT_ARGB8888 ||
+        dstFormat == MESA_FORMAT_XRGB8888) &&
        baseInternalFormat == GL_RGBA &&
        srcFormat == GL_BGRA &&
        ((srcType == GL_UNSIGNED_BYTE && littleEndian) ||
@@ -1379,7 +1381,8 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
    }
    else if (!ctx->_ImageTransferState &&
             !srcPacking->SwapBytes &&
-	    dstFormat == MESA_FORMAT_ARGB8888 &&
+	    (dstFormat == MESA_FORMAT_ARGB8888 ||
+             dstFormat == MESA_FORMAT_XRGB8888) &&
             srcFormat == GL_RGB &&
 	    (baseInternalFormat == GL_RGBA ||
 	     baseInternalFormat == GL_RGB) &&
@@ -1455,6 +1458,7 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
       /* dstmap - how to swizzle from RGBA to dst format:
        */
       if ((littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
+          (littleEndian && dstFormat == MESA_FORMAT_XRGB8888) ||
 	  (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV)) {
 	 dstmap[3] = 3;		/* alpha */
 	 dstmap[2] = 0;		/* red */
@@ -1463,7 +1467,8 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
       }
       else {
 	 assert((littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
-		(!littleEndian && dstFormat == MESA_FORMAT_ARGB8888));
+		(!littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
+		(!littleEndian && dstFormat == MESA_FORMAT_XRGB8888));
 	 dstmap[3] = 2;
 	 dstmap[2] = 1;
 	 dstmap[1] = 0;
@@ -1511,6 +1516,15 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
                   src += 4;
                }
             }
+            else if (dstFormat == MESA_FORMAT_XRGB8888) {
+               for (col = 0; col < srcWidth; col++) {
+                  dstUI[col] = PACK_COLOR_8888( 0xff,
+                                                CHAN_TO_UBYTE(src[RCOMP]),
+                                                CHAN_TO_UBYTE(src[GCOMP]),
+                                                CHAN_TO_UBYTE(src[BCOMP]) );
+                  src += 4;
+               }
+            }
             else {
                for (col = 0; col < srcWidth; col++) {
                   dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[ACOMP]),
@@ -2973,6 +2987,7 @@ texstore_funcs[MESA_FORMAT_COUNT] =
    { MESA_FORMAT_RGBA8888_REV, _mesa_texstore_rgba8888 },
    { MESA_FORMAT_ARGB8888, _mesa_texstore_argb8888 },
    { MESA_FORMAT_ARGB8888_REV, _mesa_texstore_argb8888 },
+   { MESA_FORMAT_XRGB8888, _mesa_texstore_argb8888 },
    { MESA_FORMAT_RGB888, _mesa_texstore_rgb888 },
    { MESA_FORMAT_BGR888, _mesa_texstore_bgr888 },
    { MESA_FORMAT_RGB565, _mesa_texstore_rgb565 },