Detect MIPS DSP and DSPR2 programattically.

src/core/SkBlitter_RGB16.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBlitRow.h"
 #include "SkCoreBlitters.h"
 #include "SkColorPriv.h"
 #include "SkDither.h"
 #include "SkShader.h"
 #include "SkUtils.h"
 #include "SkUtilsArm.h"
 #include "SkXfermode.h"
 
-#if SK_MIPS_HAS_DSP
+#if defined(__mips_dsp)
 extern void blitmask_d565_opaque_mips(int width, int height, uint16_t* device,
                                       unsigned deviceRB, const uint8_t* alpha,
                                       uint32_t expanded32, unsigned maskRB);
 #endif
 
 #if SK_ARM_NEON_IS_ALWAYS && defined(SK_CPU_LENDIAN)
     #include <arm_neon.h>
 extern void SkRGB16BlitterBlitV_neon(uint16_t* device,
                                      int height,
                                      size_t deviceRB,
@@ skipping 339 matching lines @@
         if (mask & 0x01) dst[7] = color;    \
     } while (0)
 
 #define SK_BLITBWMASK_NAME                  SkRGB16_BlitBW
 #define SK_BLITBWMASK_ARGS                  , uint16_t color
 #define SK_BLITBWMASK_BLIT8(mask, dst)      solid_8_pixels(mask, dst, color)
 #define SK_BLITBWMASK_GETADDR               writable_addr16
 #define SK_BLITBWMASK_DEVTYPE               uint16_t
 #include "SkBlitBWMaskTemplate.h"
 
-#if !defined(SK_MIPS_HAS_DSP)
+#if !defined(__mips_dsp)
 static U16CPU blend_compact(uint32_t src32, uint32_t dst32, unsigned scale5) {
     return SkCompact_rgb_16(dst32 + ((src32 - dst32) * scale5 >> 5));
 }
 #endif
 
 void SkRGB16_Opaque_Blitter::blitMask(const SkMask& mask,
                                       const SkIRect& clip) {
     if (mask.fFormat == SkMask::kBW_Format) {
         SkRGB16_BlitBW(fDevice, mask, clip, fColor16);
         return;
@@ skipping 70 matching lines @@
         while (w > 0) {
             *device = blend_compact(expanded32, SkExpand_rgb_16(*device),
                                     SkAlpha255To256(*alpha++) >> 3);
             device += 1;
             --w;
         }
         device = (uint16_t*)((char*)device + deviceRB);
         alpha += maskRB;
     } while (--height != 0);
 #undef    UNROLL
-#elif SK_MIPS_HAS_DSP
+#elif defined(__mips_dsp)
     blitmask_d565_opaque_mips(width, height, device, deviceRB, alpha, expanded32, maskRB);
 #else   // non-neon code
     do {
         int w = width;
         do {
             *device = blend_compact(expanded32, SkExpand_rgb_16(*device),
                                     SkAlpha255To256(*alpha++) >> 3);
             device += 1;
         } while (--w != 0);
         device = (uint16_t*)((char*)device + deviceRB);
@@ skipping 584 matching lines @@
 #endif
         } else if (0xFF == SkColorGetA(color)) {
             blitter = allocator->createT<SkRGB16_Opaque_Blitter>(device, paint);
         } else {
             blitter = allocator->createT<SkRGB16_Blitter>(device, paint);
         }
     }
 
     return blitter;
 }