i965: Support Android RGBX8888 format for EGL generated images

Enabled MESA_FORMAT_RGBX8888_REV for RGBX.  Android software
requires RGBX8888 format to be supported for software rendering.
That requires EGL to be capable of generating images from this
format.

Signed-off-by: Sean V Kelley <sean.v.kelley@linux.intel.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

src/mesa/drivers/dri/i965/brw_wm_surface_state.c

@@ -291,6 +291,8 @@ brw_format_for_mesa_format(gl_format mesa_format)
       [MESA_FORMAT_RGBA8888_REV] = BRW_SURFACEFORMAT_R8G8B8A8_UNORM,
       [MESA_FORMAT_ARGB8888] = BRW_SURFACEFORMAT_B8G8R8A8_UNORM,
       [MESA_FORMAT_ARGB8888_REV] = 0,
+      [MESA_FORMAT_RGBX8888] = 0,
+      [MESA_FORMAT_RGBX8888_REV] = BRW_SURFACEFORMAT_R8G8B8X8_UNORM,
       [MESA_FORMAT_XRGB8888] = BRW_SURFACEFORMAT_B8G8R8X8_UNORM,
       [MESA_FORMAT_XRGB8888_REV] = 0,
       [MESA_FORMAT_RGB888] = 0,

src/mesa/drivers/dri/intel/intel_screen.c

@@ -211,6 +211,11 @@ intel_create_image_from_name(__DRIscreen *screen,
        image->internal_format = GL_RGBA;
        image->data_type = GL_UNSIGNED_BYTE;
        break;
+    case __DRI_IMAGE_FORMAT_XBGR8888:
+       image->format = MESA_FORMAT_RGBX8888_REV;
+       image->internal_format = GL_RGB;
+       image->data_type = GL_UNSIGNED_BYTE;
+       break;
     default:
        free(image);
        return NULL;
@@ -327,6 +332,11 @@ intel_create_image(__DRIscreen *screen,
        image->internal_format = GL_RGBA;
        image->data_type = GL_UNSIGNED_BYTE;
        break;
+    case __DRI_IMAGE_FORMAT_XBGR8888:
+       image->format = MESA_FORMAT_RGBX8888_REV;
+       image->internal_format = GL_RGB;
+       image->data_type = GL_UNSIGNED_BYTE;
+       break;
    default:
       free(image);
       return NULL;