diff --git a/gfx/scaler/pixconv.c b/gfx/scaler/pixconv.c
index 73f94a9891..04d3255977 100644
--- a/gfx/scaler/pixconv.c
+++ b/gfx/scaler/pixconv.c
@@ -17,7 +17,69 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdio.h>
 
+#if defined(__SSE2__)
+#include <emmintrin.h>
+#endif
+
+#if defined(__SSE2__)
+void conv_0rgb1555_argb8888(void *output_, const void *input_,
+      int width, int height,
+      int out_stride, int in_stride)
+{
+   const uint16_t *input = (const uint16_t*)input_;
+   uint32_t *output      = (uint32_t*)output_;
+
+   __m128i pix_mask_r  = _mm_set1_epi16(0x1f << 10);
+   __m128i pix_mask_gb = _mm_set1_epi16(0x1f <<  5);
+   __m128i mul15_mid   = _mm_set1_epi16(0x4200);
+   __m128i mul15_hi    = _mm_set1_epi16(0x0210);
+   __m128i a           = _mm_set1_epi16(0x00ff);
+
+   int max_width = width - 7;
+
+   for (int h = 0; h < height; h++, output += out_stride >> 2, input += in_stride >> 1)
+   {
+      int w;
+      for (w = 0; w < max_width; w += 8)
+      {
+         __m128i in = _mm_loadu_si128((const __m128i*)(input + w));
+         __m128i r = _mm_and_si128(in, pix_mask_r);
+         __m128i g = _mm_and_si128(in, pix_mask_gb);
+         __m128i b = _mm_and_si128(_mm_slli_epi16(in, 5), pix_mask_gb);
+
+         r = _mm_mulhi_epi16(r, mul15_hi);
+         g = _mm_mulhi_epi16(g, mul15_mid);
+         b = _mm_mulhi_epi16(b, mul15_mid);
+
+         __m128i res_lo_bg = _mm_unpacklo_epi8(b, g);
+         __m128i res_hi_bg = _mm_unpackhi_epi8(b, g);
+         __m128i res_lo_ra = _mm_unpacklo_epi8(r, a);
+         __m128i res_hi_ra = _mm_unpackhi_epi8(r, a);
+
+         __m128i res_lo = _mm_or_si128(res_lo_bg, _mm_slli_si128(res_lo_ra, 2));
+         __m128i res_hi = _mm_or_si128(res_hi_bg, _mm_slli_si128(res_hi_ra, 2));
+
+         _mm_storeu_si128((__m128i*)(output + w + 0), res_lo);
+         _mm_storeu_si128((__m128i*)(output + w + 4), res_hi);
+      }
+
+      for (; w < width; w++)
+      {
+         uint32_t col = input[w];
+         uint32_t r = (col >> 10) & 0x1f;
+         uint32_t g = (col >>  5) & 0x1f;
+         uint32_t b = (col >>  0) & 0x1f;
+         r = (r << 3) | (r >> 2);
+         g = (g << 3) | (g >> 2);
+         b = (b << 3) | (b >> 2);
+
+         output[w] = (0xff << 24) | (r << 16) | (g << 8) | (b << 0);
+      }
+   }
+}
+#else
 void conv_0rgb1555_argb8888(void *output_, const void *input_,
       int width, int height,
       int out_stride, int in_stride)
@@ -41,6 +103,7 @@ void conv_0rgb1555_argb8888(void *output_, const void *input_,
       }
    }
 }
+#endif
 
 void conv_0rgb1555_bgr24(void *output_, const void *input_,
       int width, int height,