d3dx9_36: Implementation of D3DXSHDot.
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@ -273,7 +273,7 @@
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@ stub D3DXSaveVolumeToFileInMemory(ptr long ptr ptr ptr)
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@ stub D3DXSaveVolumeToFileW(ptr long ptr ptr ptr)
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@ stdcall D3DXSHAdd(ptr long ptr ptr)
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@ stub D3DXSHDot(long ptr ptr)
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@ stdcall D3DXSHDot(long ptr ptr)
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@ stub D3DXSHEvalConeLight(long ptr long long long long ptr ptr ptr)
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@ stub D3DXSHEvalDirection(ptr long ptr)
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@ stub D3DXSHEvalDirectionalLight(long ptr long long long long ptr ptr ptr)
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@ -1981,6 +1981,20 @@ FLOAT* WINAPI D3DXSHAdd(FLOAT *out, UINT order, const FLOAT *a, const FLOAT *b)
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return out;
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}
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FLOAT WINAPI D3DXSHDot(UINT order, CONST FLOAT *a, CONST FLOAT *b)
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{
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FLOAT s;
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UINT i;
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TRACE("order %u, a %p, b %p\n", order, a, b);
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s = a[0] * b[0];
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for (i = 1; i < order * order; i++)
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s += a[i] * b[i];
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return s;
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}
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FLOAT* WINAPI D3DXSHMultiply3(FLOAT *out, CONST FLOAT *a, CONST FLOAT *b)
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{
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FLOAT t, ta, tb;
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@ -2399,6 +2399,29 @@ static void test_D3DXSHAdd(void)
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}
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}
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static void test_D3DXSHDot(void)
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{
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unsigned int i;
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FLOAT a[64], b[64], got;
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CONST FLOAT expected[] =
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{ 0.5f, 0.5f, 25.0f, 262.5f, 1428.0f, 5362.0f, 15873.0f, 39812.0f, 88400.0f, };
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for (i = 0; i < 64; i++)
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{
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a[i] = (FLOAT)i + 1.0f;
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b[i] = (FLOAT)i + 0.5f;
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}
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/* D3DXSHDot computes by using order * order elements */
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for (i = 0; i < 9; i++)
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{
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got = D3DXSHDot(i, a, b);
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ok(relative_error(got, expected[i]) < admitted_error, "order %d: expected %f, received %f\n", i, expected[i], got);
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}
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return;
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}
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static void test_D3DXSHMultiply3(void)
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{
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unsigned int i;
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@ -2438,5 +2461,6 @@ START_TEST(math)
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test_D3DXVec_Array();
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test_D3DXFloat_Array();
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test_D3DXSHAdd();
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test_D3DXSHDot();
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test_D3DXSHMultiply3();
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}
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@ -378,6 +378,7 @@ D3DXFLOAT16 *WINAPI D3DXFloat32To16Array(D3DXFLOAT16 *pout, CONST FLOAT *pin, UI
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FLOAT *WINAPI D3DXFloat16To32Array(FLOAT *pout, CONST D3DXFLOAT16 *pin, UINT n);
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FLOAT* WINAPI D3DXSHAdd(FLOAT *out, UINT order, CONST FLOAT *a, CONST FLOAT *b);
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FLOAT WINAPI D3DXSHDot(UINT order, CONST FLOAT *a, CONST FLOAT *b);
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FLOAT* WINAPI D3DXSHMultiply3(FLOAT *out, CONST FLOAT *a, CONST FLOAT *b);
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#ifdef __cplusplus
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