mesa formats: unpack ARGB8888/XRGB8888

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

diff --git a/src/mesa/main/format_unpack.c b/src/mesa/main/format_unpack.c
index c42bac19c722356611d2e88602b55055563ea809..d1daae59ce1530605cf37b33c6e229a909756bd3 100644 (file)
--- a/src/mesa/main/format_unpack.c
+++ b/src/mesa/main/format_unpack.c
@@ -2138,6 +2138,32 @@ unpack_int_rgba_RGBA_INT8(const GLbyte *src, GLuint dst[][4], GLuint n)
    }
 }
 
+static void
+unpack_int_rgba_ARGB8888(const GLbyte *src, GLuint dst[][4], GLuint n)
+{
+   unsigned int i;
+
+   for (i = 0; i < n; i++) {
+      dst[i][RCOMP] = (GLubyte) src[i * 4 + 2];
+      dst[i][GCOMP] = (GLubyte) src[i * 4 + 1];
+      dst[i][BCOMP] = (GLubyte) src[i * 4 + 0];
+      dst[i][ACOMP] = (GLubyte) src[i * 4 + 3];
+   }
+}
+
+static void
+unpack_int_rgba_XRGB8888(const GLbyte *src, GLuint dst[][4], GLuint n)
+{
+   unsigned int i;
+
+   for (i = 0; i < n; i++) {
+      dst[i][RCOMP] = (GLubyte) src[i * 4 + 2];
+      dst[i][GCOMP] = (GLubyte) src[i * 4 + 1];
+      dst[i][BCOMP] = (GLubyte) src[i * 4 + 0];
+      dst[i][ACOMP] = (GLubyte) 0xff;
+   }
+}
+
 static void
 unpack_int_rgba_RGB_UINT32(const GLuint *src, GLuint dst[][4], GLuint n)
 {
@@ -2590,6 +2616,14 @@ _mesa_unpack_uint_rgba_row(gl_format format, GLuint n,
       unpack_int_rgba_RGBA_INT8(src, dst, n);
       break;
 
+   case MESA_FORMAT_ARGB8888:
+      unpack_int_rgba_ARGB8888(src, dst, n);
+      break;
+
+   case MESA_FORMAT_XRGB8888:
+      unpack_int_rgba_XRGB8888(src, dst, n);
+      break;
+
    case MESA_FORMAT_RGB_UINT32:
    case MESA_FORMAT_RGB_INT32:
       unpack_int_rgba_RGB_UINT32(src, dst, n);