TestPrimitivesAlphaComp.c

/* test_alphaComp.c
 * vi:ts=4 sw=4
 *
 * (c) Copyright 2012 Hewlett-Packard Development Company, L.P.
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License. You may obtain
 * a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
 
#include <freerdp/config.h>
 
#include <winpr/sysinfo.h>
 
#include "prim_test.h"
 
#define MAX_BLOCK_SIZE 256
#define SIZE_SQUARED (MAX_BLOCK_SIZE * MAX_BLOCK_SIZE)
 
/* ========================================================================= */
#define ALF(_c_) (((_c_)&0xFF000000U) >> 24)
#define RED(_c_) (((_c_)&0x00FF0000U) >> 16)
#define GRN(_c_) (((_c_)&0x0000FF00U) >> 8)
#define BLU(_c_) ((_c_)&0x000000FFU)
#define TOLERANCE 1
static inline const UINT32* PIXEL(const BYTE* _addr_, UINT32 _bytes_, UINT32 _x_, UINT32 _y_)
{
  const BYTE* addr = _addr_ + 1ULL * _x_ * sizeof(UINT32) + 1ULL * _y_ * _bytes_;
  return (const UINT32*)addr;
}
 
#define SRC1_WIDTH 6
#define SRC1_HEIGHT 6
#define SRC2_WIDTH 7
#define SRC2_HEIGHT 7
#define DST_WIDTH 9
#define DST_HEIGHT 9
#define TEST_WIDTH 4
#define TEST_HEIGHT 5
 
/* ------------------------------------------------------------------------- */
static UINT32 alpha_add(UINT32 c1, UINT32 c2)
{
  UINT32 a1 = ALF(c1);
  UINT32 r1 = RED(c1);
  UINT32 g1 = GRN(c1);
  UINT32 b1 = BLU(c1);
  UINT32 a2 = ALF(c2);
  UINT32 r2 = RED(c2);
  UINT32 g2 = GRN(c2);
  UINT32 b2 = BLU(c2);
  UINT32 a3 = ((a1 * a1 + (255 - a1) * a2) / 255) & 0xff;
  UINT32 r3 = ((a1 * r1 + (255 - a1) * r2) / 255) & 0xff;
  UINT32 g3 = ((a1 * g1 + (255 - a1) * g2) / 255) & 0xff;
  UINT32 b3 = ((a1 * b1 + (255 - a1) * b2) / 255) & 0xff;
  return (a3 << 24) | (r3 << 16) | (g3 << 8) | b3;
}
 
/* ------------------------------------------------------------------------- */
static UINT32 colordist(UINT32 c1, UINT32 c2)
{
  int d = 0;
  int maxd = 0;
  d = ABS((INT32)(ALF(c1) - ALF(c2)));
 
  if (d > maxd)
    maxd = d;
 
  d = ABS((INT32)(RED(c1) - RED(c2)));
 
  if (d > maxd)
    maxd = d;
 
  d = ABS((INT32)(GRN(c1) - GRN(c2)));
 
  if (d > maxd)
    maxd = d;
 
  d = ABS((INT32)(BLU(c1) - BLU(c2)));
 
  if (d > maxd)
    maxd = d;
 
  return maxd;
}
 
/* ------------------------------------------------------------------------- */
static BOOL check(const BYTE* pSrc1, UINT32 src1Step, const BYTE* pSrc2, UINT32 src2Step,
                  BYTE* pDst, UINT32 dstStep, UINT32 width, UINT32 height)
{
  for (UINT32 y = 0; y < height; ++y)
  {
    for (UINT32 x = 0; x < width; ++x)
    {
      UINT32 s1 = *PIXEL(pSrc1, src1Step, x, y);
      UINT32 s2 = *PIXEL(pSrc2, src2Step, x, y);
      UINT32 c0 = alpha_add(s1, s2);
      UINT32 c1 = *PIXEL(pDst, dstStep, x, y);
 
      if (colordist(c0, c1) > TOLERANCE)
      {
        printf("alphaComp-general: [%" PRIu32 ",%" PRIu32 "] 0x%08" PRIx32 "+0x%08" PRIx32
               "=0x%08" PRIx32 ", got 0x%08" PRIx32 "\n",
               x, y, s1, s2, c0, c1);
        return FALSE;
      }
    }
  }
 
  return TRUE;
}
 
static BOOL test_alphaComp_func(void)
{
  pstatus_t status = 0;
  BYTE ALIGN(src1[SRC1_WIDTH * SRC1_HEIGHT * 4]) = { 0 };
  BYTE ALIGN(src2[SRC2_WIDTH * SRC2_HEIGHT * 4]) = { 0 };
  BYTE ALIGN(dst1[DST_WIDTH * DST_HEIGHT * 4]) = { 0 };
  UINT32* ptr = NULL;
  winpr_RAND(src1, sizeof(src1));
  /* Special-case the first two values */
  src1[0] &= 0x00FFFFFFU;
  src1[1] |= 0xFF000000U;
  winpr_RAND(src2, sizeof(src2));
  /* Set the second operand to fully-opaque. */
  ptr = (UINT32*)src2;
 
  for (UINT32 i = 0; i < sizeof(src2) / 4; ++i)
    *ptr++ |= 0xFF000000U;
 
  status = generic->alphaComp_argb(src1, 4 * SRC1_WIDTH, src2, 4 * SRC2_WIDTH, dst1,
                                   4 * DST_WIDTH, TEST_WIDTH, TEST_HEIGHT);
 
  if (status != PRIMITIVES_SUCCESS)
    return FALSE;
 
  if (!check(src1, 4 * SRC1_WIDTH, src2, 4 * SRC2_WIDTH, dst1, 4 * DST_WIDTH, TEST_WIDTH,
             TEST_HEIGHT))
    return FALSE;
 
  status = optimized->alphaComp_argb((const BYTE*)src1, 4 * SRC1_WIDTH, (const BYTE*)src2,
                                     4 * SRC2_WIDTH, (BYTE*)dst1, 4 * DST_WIDTH, TEST_WIDTH,
                                     TEST_HEIGHT);
 
  if (status != PRIMITIVES_SUCCESS)
    return FALSE;
 
  if (!check(src1, 4 * SRC1_WIDTH, src2, 4 * SRC2_WIDTH, dst1, 4 * DST_WIDTH, TEST_WIDTH,
             TEST_HEIGHT))
    return FALSE;
 
  return TRUE;
}
 
static int test_alphaComp_speed(void)
{
  BYTE ALIGN(src1[SRC1_WIDTH * SRC1_HEIGHT]) = { 0 };
  BYTE ALIGN(src2[SRC2_WIDTH * SRC2_HEIGHT]) = { 0 };
  BYTE ALIGN(dst1[DST_WIDTH * DST_HEIGHT]) = { 0 };
  UINT32* ptr = NULL;
 
  winpr_RAND(src1, sizeof(src1));
  /* Special-case the first two values */
  src1[0] &= 0x00FFFFFFU;
  src1[1] |= 0xFF000000U;
  winpr_RAND(src2, sizeof(src2));
  /* Set the second operand to fully-opaque. */
  ptr = (UINT32*)src2;
 
  for (UINT32 i = 0; i < sizeof(src2) / 4; ++i)
    *ptr++ |= 0xFF000000U;
 
  if (!speed_test("add16s", "aligned", g_Iterations, (speed_test_fkt)generic->alphaComp_argb,
                  (speed_test_fkt)optimized->alphaComp_argb, src1, 4 * SRC1_WIDTH, src2,
                  4 * SRC2_WIDTH, dst1, 4 * DST_WIDTH, TEST_WIDTH, TEST_HEIGHT))
    return FALSE;
 
  return TRUE;
}
 
int TestPrimitivesAlphaComp(int argc, char* argv[])
{
  WINPR_UNUSED(argc);
  WINPR_UNUSED(argv);
 
  prim_test_setup(FALSE);
 
  if (!test_alphaComp_func())
    return -1;
 
  if (g_TestPrimitivesPerformance)
  {
    if (!test_alphaComp_speed())
      return -1;
  }
 
  return 0;
}