Add '-Wall' or '-fstack-protector' compilation flags

In addition, this fixes all warnings reported by -Wall

Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
diff --git a/common/loadsurface.h b/common/loadsurface.h
index 82cf61c..c5cb9d4 100755
--- a/common/loadsurface.h
+++ b/common/loadsurface.h
@@ -306,6 +306,8 @@
     return 0;
 }
 
+#ifdef LIBVA_UTILS_UPLOAD_DOWNLOAD_YUV_SURFACE
+
 /*
  * Upload YUV data from memory into a surface
  * if src_fourcc == NV12, assume the buffer pointed by src_U
@@ -487,3 +489,5 @@
 
     return 0;
 }
+
+#endif /* LIBVA_UTILS_UPLOAD_DOWNLOAD_YUV_SURFACE */
diff --git a/decode/Makefile.am b/decode/Makefile.am
index b80ff19..febc50d 100644
--- a/decode/Makefile.am
+++ b/decode/Makefile.am
@@ -23,6 +23,8 @@
 bin_PROGRAMS = mpeg2vldemo loadjpeg
 
 AM_CPPFLAGS = \
+	-Wall					\
+	-fstack-protector			\
 	$(LIBVA_CFLAGS)				\
 	-I$(top_srcdir)/common			\
 	$(NULL)
diff --git a/decode/tinyjpeg.c b/decode/tinyjpeg.c
index 571716c..fa69c5c 100644
--- a/decode/tinyjpeg.c
+++ b/decode/tinyjpeg.c
@@ -176,8 +176,8 @@
 
 static void print_SOF(const unsigned char *stream)
 {
-  int width, height, nr_components, precision;
 #if DEBUG
+  int width, height, nr_components, precision;
   const char *nr_components_to_string[] = {
      "????",
      "Grayscale",
@@ -185,12 +185,12 @@
      "YCbCr",
      "CYMK"
   };
-#endif
 
   precision = stream[2];
   height = be16_to_cpu(stream+3);
   width  = be16_to_cpu(stream+5);
   nr_components = stream[7];
+#endif
 
   trace("> SOF marker\n");
   trace("Size:%dx%d nr_components:%d (%s)  precision:%d\n", 
@@ -578,8 +578,6 @@
     unsigned int i, j;
 
     int surface_type;
-    char *type;
-    int ChromaTypeIndex;
 
     VASurfaceAttrib forcc;
     forcc.type =VASurfaceAttribPixelFormat;
@@ -644,62 +642,46 @@
            //surface_type = VA_RT_FORMAT_IMC3;
            surface_type = VA_RT_FORMAT_YUV420;
            forcc.value.value.i = VA_FOURCC_IMC3;
-           ChromaTypeIndex = 1;
-           type = "VA_FOURCC_IMC3";
        }
        else if (h1 == 2 && h2 == 1 && h3 == 1 &&
                v1 == 1 && v2 == 1 && v3 == 1) {
            //surface_type = VA_RT_FORMAT_YUV422H;
            surface_type = VA_RT_FORMAT_YUV422;
            forcc.value.value.i = VA_FOURCC_422H;
-           ChromaTypeIndex = 2;
-           type = "VA_FOURCC_422H";
        }
        else if (h1 == 1 && h2 == 1 && h3 == 1 &&
                v1 == 1 && v2 == 1 && v3 == 1) {
            surface_type = VA_RT_FORMAT_YUV444;
            forcc.value.value.i = VA_FOURCC_444P;
            //forcc.value.value.i = VA_FOURCC_RGBP;
-           ChromaTypeIndex = 3;
-           type = "VA_FOURCC_444P";
        }
        else if (h1 == 4 && h2 == 1 && h3 == 1 &&
                v1 == 1 && v2 == 1 && v3 == 1) {
            surface_type = VA_RT_FORMAT_YUV411;
            forcc.value.value.i = VA_FOURCC_411P;
-           ChromaTypeIndex = 4;
-           type = "VA_FOURCC_411P";
        }
        else if (h1 == 1 && h2 == 1 && h3 == 1 &&
                v1 == 2 && v2 == 1 && v3 == 1) {
            //surface_type = VA_RT_FORMAT_YUV422V;
            surface_type = VA_RT_FORMAT_YUV422;
            forcc.value.value.i = VA_FOURCC_422V;
-           ChromaTypeIndex = 5;
-           type = "VA_FOURCC_422V";
        }
        else if (h1 == 2 && h2 == 1 && h3 == 1 &&
                v1 == 2 && v2 == 2 && v3 == 2) {
            //surface_type = VA_RT_FORMAT_YUV422H;
            surface_type = VA_RT_FORMAT_YUV422;
            forcc.value.value.i = VA_FOURCC_422H;
-           ChromaTypeIndex = 6;
-           type = "VA_FOURCC_422H";
        }
        else if (h2 == 2 && h2 == 2 && h3 == 2 &&
                v1 == 2 && v2 == 1 && v3 == 1) {
            //surface_type = VA_RT_FORMAT_YUV422V;
            surface_type = VA_RT_FORMAT_YUV422;
            forcc.value.value.i = VA_FOURCC_422V;
-           ChromaTypeIndex = 7;
-           type = "VA_FOURCC_422V";
        }
        else
        {
            surface_type = VA_RT_FORMAT_YUV400;
            forcc.value.value.i = VA_FOURCC('Y','8','0','0');
-           ChromaTypeIndex = 0;
-           type = "Format_400P";
        }
 
        va_status = vaCreateSurfaces(va_dpy,surface_type,
diff --git a/encode/Makefile.am b/encode/Makefile.am
index 7327a35..149f1ad 100644
--- a/encode/Makefile.am
+++ b/encode/Makefile.am
@@ -25,6 +25,7 @@
 
 AM_CPPFLAGS = \
 	-Wall				\
+	-fstack-protector		\
 	$(LIBVA_CFLAGS) 		\
 	$(NULL)
 
diff --git a/encode/h264encode.c b/encode/h264encode.c
index 328013b..4bb1f12 100644
--- a/encode/h264encode.c
+++ b/encode/h264encode.c
@@ -21,6 +21,8 @@
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
+#define LIBVA_UTILS_UPLOAD_DOWNLOAD_YUV_SURFACE 1
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -564,6 +566,8 @@
     return bs.bit_offset;
 }
 
+#if 0
+
 static int 
 build_packed_sei_buffer_timing(unsigned int init_cpb_removal_length,
 				unsigned int init_cpb_removal_delay,
@@ -630,6 +634,8 @@
     return nal_bs.bit_offset;
 }
 
+#endif
+
 static int build_packed_slice_buffer(unsigned char **header_buffer)
 {
     bitstream bs;
@@ -1666,6 +1672,8 @@
     return 0;
 }
 
+#if 0
+
 static void render_packedsei(void)
 {
     VAEncPackedHeaderParameterBuffer packed_header_param_buffer;
@@ -1728,7 +1736,6 @@
     return;
 }
 
-
 static int render_hrd(void)
 {
     VABufferID misc_parameter_hrd_buf_id;
@@ -1765,6 +1772,8 @@
     return 0;
 }
 
+#endif
+
 static void render_packedslice()
 {
     VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
diff --git a/putsurface/Makefile.am b/putsurface/Makefile.am
index b764a70..e7b62a1 100644
--- a/putsurface/Makefile.am
+++ b/putsurface/Makefile.am
@@ -25,6 +25,8 @@
 TEST_CFLAGS = \
 	$(LIBVA_CFLAGS)			\
 	-I$(top_srcdir)/common		\
+	-Wall				\
+	-fstack-protector		\
 	$(NULL)
 
 TEST_LIBS = \
diff --git a/vainfo/Makefile.am b/vainfo/Makefile.am
index 46c09ed..aff201f 100644
--- a/vainfo/Makefile.am
+++ b/vainfo/Makefile.am
@@ -26,6 +26,8 @@
 	-I$(top_srcdir)/common \
 	$(LIBVA_CFLAGS) \
 	-DLIBVA_VERSION_S="\"$(LIBVA_VERSION)\"" \
+	-Wall \
+	-fstack-protector \
 	$(NULL)
 
 vainfo_libs = \
diff --git a/videoprocess/Makefile.am b/videoprocess/Makefile.am
index 18a2ec6..eb79bc3 100644
--- a/videoprocess/Makefile.am
+++ b/videoprocess/Makefile.am
@@ -23,6 +23,8 @@
 bin_PROGRAMS = vavpp
 
 AM_CPPFLAGS = \
+	-Wall					\
+	-fstack-protector			\
 	$(LIBVA_CFLAGS)				\
 	-I$(top_srcdir)/common			\
 	$(NULL)
diff --git a/videoprocess/vavpp.cpp b/videoprocess/vavpp.cpp
index e61e7cd..a525e1c 100644
--- a/videoprocess/vavpp.cpp
+++ b/videoprocess/vavpp.cpp
@@ -215,7 +215,7 @@
     VAStatus va_status;
     VAImage surface_image;
     void *surface_p = NULL;
-    unsigned char *y_dst, *u_dst, *v_dst;
+    unsigned char *y_dst, *u_dst;
     uint32_t row, col;
 
     va_status = vaDeriveImage(va_dpy, surface_id, &surface_image);
@@ -226,7 +226,6 @@
 
     y_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[0]);
     u_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[1]);
-    v_dst = u_dst;
 
     /* fill Y plane, the luma values of some pixels is in the range of min_luma~max_luma,
      * and others are out side of it, in luma key blending case, the pixels with Y value
@@ -265,7 +264,7 @@
     unsigned char *y_src, *u_src, *v_src;
     unsigned char *y_dst, *u_dst, *v_dst;
     void *surface_p = NULL;
-    uint32_t frame_size, i, row, col;
+    uint32_t frame_size, row, col;
     size_t n_items;
     unsigned char * newImageBuffer = NULL;
 
@@ -406,25 +405,8 @@
         } while (n_items != 1);
 
         y_src = newImageBuffer;
-
-        if (g_src_file_fourcc == VA_FOURCC_I010) {
-            u_src = newImageBuffer + surface_image.width * surface_image.height * 2;
-            v_src = newImageBuffer + surface_image.width * surface_image.height * 5 / 2;
-        } else if (g_src_file_fourcc == VA_FOURCC_P010) {
-            u_src = newImageBuffer + surface_image.width * surface_image.height * 2;
-            v_src = u_src;
-        }
-
         y_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[0]);
 
-        if (surface_image.format.fourcc == VA_FOURCC_I010) {
-            u_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[1]);
-            v_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[2]);
-        } else if (surface_image.format.fourcc == VA_FOURCC_P010) {
-            u_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[1]);
-            v_dst = u_dst;
-        }
-
         /* plane 0, directly copy */
         for (row = 0; row < surface_image.height; row++) {
             memcpy(y_dst, y_src, surface_image.width * 2);
@@ -436,6 +418,12 @@
         if (surface_image.format.fourcc == VA_FOURCC_I010) {
             assert(g_src_file_fourcc == VA_FOURCC_I010);
 
+            u_src = newImageBuffer + surface_image.width * surface_image.height * 2;
+            v_src = newImageBuffer + surface_image.width * surface_image.height * 5 / 2;
+
+            u_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[1]);
+            v_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[2]);
+
             for (row = 0; row < surface_image.height / 2; row++) {
                 memcpy(u_dst, u_src, surface_image.width);
                 memcpy(v_dst, v_src, surface_image.width);
@@ -449,6 +437,12 @@
         } else if (surface_image.format.fourcc == VA_FOURCC_P010){
             assert(g_src_file_fourcc == VA_FOURCC_P010);
 
+            u_src = newImageBuffer + surface_image.width * surface_image.height * 2;
+            v_src = u_src;
+
+            u_dst = (unsigned char *)((unsigned char*)surface_p + surface_image.offsets[1]);
+            v_dst = u_dst;
+
             for (row = 0; row < surface_image.height / 2; row++) {
                 memcpy(u_dst, u_src, surface_image.width * 2);
 
@@ -506,13 +500,12 @@
                                VASurfaceID surface_id)
 {
     VAStatus va_status;
-    VAImageFormat image_format;
     VAImage surface_image;
     void *surface_p = NULL;
     unsigned char *y_src, *u_src, *v_src;
     unsigned char *y_dst, *u_dst, *v_dst;
-    uint32_t frame_size, row, col;
-    int32_t  ret, n_items;
+    uint32_t row, col;
+    int32_t n_items;
     unsigned char * newImageBuffer = NULL;
 
     va_status = vaDeriveImage(va_dpy, surface_id, &surface_image);
@@ -613,13 +606,12 @@
                                VASurfaceID surface_id)
 {
     VAStatus va_status;
-    VAImageFormat image_format;
     VAImage surface_image;
     void *surface_p = NULL;
     unsigned char *y_src, *u_src, *v_src;
     unsigned char *y_dst, *u_dst, *v_dst;
-    uint32_t frame_size, row, col;
-    int32_t  ret, n_items;
+    uint32_t row, col;
+    int32_t n_items;
     unsigned char * newImageBuffer = NULL;
 
     va_status = vaDeriveImage(va_dpy, surface_id, &surface_image);
@@ -720,13 +712,12 @@
                                VASurfaceID surface_id)
 {
     VAStatus va_status;
-    VAImageFormat image_format;
     VAImage surface_image;
     void *surface_p = NULL;
     unsigned char *y_src, *u_src, *v_src;
     unsigned char *y_dst, *u_dst, *v_dst;
-    uint32_t frame_size, row, col;
-    int32_t  ret, n_items;
+    uint32_t row, col;
+    int32_t n_items;
     unsigned char * newImageBuffer = NULL;
 
     va_status = vaDeriveImage(va_dpy, surface_id, &surface_image);
@@ -741,7 +732,6 @@
         surface_image.format.fourcc == VA_FOURCC_NV12){
 
         uint32_t y_size = surface_image.width * surface_image.height;
-        uint32_t u_size = y_size/4;
 
         newImageBuffer = (unsigned char*)malloc(y_size * 3 / 2);
         assert(newImageBuffer);
@@ -823,13 +813,12 @@
                                         VASurfaceID surface_id)
 {
     VAStatus va_status;
-    VAImageFormat image_format;
     VAImage surface_image;
     void *surface_p = NULL;
     unsigned char *y_src;
     unsigned char *y_dst;
-    uint32_t frame_size, row, col;
-    int32_t  ret, n_items;
+    uint32_t row;
+    int32_t n_items;
     unsigned char * newImageBuffer = NULL;
 
     va_status = vaDeriveImage(va_dpy, surface_id, &surface_image);
@@ -884,13 +873,12 @@
 store_yuv_surface_to_10bit_file(FILE *fp, VASurfaceID surface_id)
 {
     VAStatus va_status;
-    VAImageFormat image_format;
     VAImage surface_image;
     void *surface_p = NULL;
     unsigned char *y_src, *u_src, *v_src;
     unsigned char *y_dst, *u_dst, *v_dst;
-    uint32_t frame_size, row, col;
-    int32_t  ret, n_items;
+    uint32_t row;
+    int32_t n_items;
     unsigned char * newImageBuffer = NULL;
 
     va_status = vaDeriveImage(va_dpy, surface_id, &surface_image);
@@ -971,13 +959,12 @@
 store_rgb_surface_to_rgb_file(FILE *fp, VASurfaceID surface_id)
 {
     VAStatus va_status;
-    VAImageFormat image_format;
     VAImage surface_image;
     void *surface_p = NULL;
     unsigned char *y_src;
     unsigned char *y_dst;
-    uint32_t frame_size, row, col;
-    int32_t  ret, n_items;
+    uint32_t frame_size, row;
+    int32_t n_items;
     unsigned char * newImageBuffer = NULL;
 
     va_status = vaDeriveImage(va_dpy, surface_id, &surface_image);
@@ -1453,6 +1440,7 @@
 {
     VAStatus va_status = VA_STATUS_SUCCESS;
     uint32_t i;
+    int32_t j;
 
     /* VA driver initialization */
     va_dpy = va_open_display();
@@ -1470,12 +1458,12 @@
                                          &num_entrypoints);
     CHECK_VASTATUS(va_status, "vaQueryConfigEntrypoints");
 
-    for	(i = 0; i < num_entrypoints; i++) {
-        if (entrypoints[i] == VAEntrypointVideoProc)
+    for (j = 0; j < num_entrypoints; j++) {
+        if (entrypoints[j] == VAEntrypointVideoProc)
             break;
     }
 
-    if (i == num_entrypoints) {
+    if (j == num_entrypoints) {
         printf("VPP is not supported by driver\n");
         assert(0);
     }
@@ -1537,7 +1525,7 @@
 
     for (i = 0; i < num_surf_attribs; i++) {
         if (surf_attribs[i].type == VASurfaceAttribPixelFormat &&
-            surf_attribs[i].value.value.i == g_in_fourcc)
+            surf_attribs[i].value.value.i == (int)g_in_fourcc)
             break;
     }
     free(surf_attribs);