shithub: libvpx

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Test extreme inputs in frame scale functions

Change-Id: Ic149e3cb59be2ee0f98a3fcfd83226ad5ea30c99

--- a/test/vpx_scale_test.h

+++ b/test/vpx_scale_test.h

@@ -15,11 +15,14 @@

 #include "./vpx_config.h"

 #include "./vpx_scale_rtcd.h"

+#include "test/acm_random.h"

 #include "test/clear_system_state.h"

 #include "test/register_state_check.h"

 #include "vpx_mem/vpx_mem.h"

 #include "vpx_scale/yv12config.h"

+using libvpx_test::ACMRandom;

+

 namespace libvpx_test {

 class VpxScaleBase {

@@ -65,12 +68,12 @@

     ResetScaleImage(&img_, src_width, src_height);

     ResetScaleImage(&ref_img_, dst_width, dst_height);

     ResetScaleImage(&dst_img_, dst_width, dst_height);

-    FillPlane(img_.y_buffer, img_.y_crop_width, img_.y_crop_height,

-              img_.y_stride);

-    FillPlane(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height,

-              img_.uv_stride);

-    FillPlane(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height,

-              img_.uv_stride);

+    FillPlaneExtreme(img_.y_buffer, img_.y_crop_width, img_.y_crop_height,

+                     img_.y_stride);

+    FillPlaneExtreme(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height,

+                     img_.uv_stride);

+    FillPlaneExtreme(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height,

+                     img_.uv_stride);

   }

   void DeallocImages() {

@@ -89,10 +92,21 @@

   static const int kBufFiller = 123;

   static const int kBufMax = kBufFiller - 1;

-  static void FillPlane(uint8_t *buf, int width, int height, int stride) {

+  static void FillPlane(uint8_t *const buf, const int width, const int height,

+                        const int stride) {

     for (int y = 0; y < height; ++y) {

       for (int x = 0; x < width; ++x) {

         buf[x + (y * stride)] = (x + (width * y)) % kBufMax;

+      }

+    }

+  }

+

+  static void FillPlaneExtreme(uint8_t *const buf, const int width,

+                               const int height, const int stride) {

+    ACMRandom rnd;

+    for (int y = 0; y < height; ++y) {

+      for (int x = 0; x < width; ++x) {

+        buf[x + (y * stride)] = rnd.Rand8() % 2 ? 255 : 0;

       }

     }

   }