Nozomi Kodama : d3dx9: Implementation of D3DXSHMultiply2.
Alexandre Julliard
julliard at winehq.org
Mon Jul 16 14:14:28 CDT 2012
Module: wine
Branch: master
Commit: f757f3fb7d8a1cccecc496834d8d82516676792f
URL: http://source.winehq.org/git/wine.git/?a=commit;h=f757f3fb7d8a1cccecc496834d8d82516676792f
Author: Nozomi Kodama <Nozomi.Kodama at yahoo.com>
Date: Fri Jul 13 02:53:18 2012 +0200
d3dx9: Implementation of D3DXSHMultiply2.
---
dlls/d3dx9_36/d3dx9_36.spec | 2 +-
dlls/d3dx9_36/math.c | 17 +++++++++++++++++
dlls/d3dx9_36/tests/math.c | 23 +++++++++++++++++++++++
include/d3dx9math.h | 1 +
4 files changed, 42 insertions(+), 1 deletions(-)
diff --git a/dlls/d3dx9_36/d3dx9_36.spec b/dlls/d3dx9_36/d3dx9_36.spec
index 58e8636..9230d55 100644
--- a/dlls/d3dx9_36/d3dx9_36.spec
+++ b/dlls/d3dx9_36/d3dx9_36.spec
@@ -279,7 +279,7 @@
@ stub D3DXSHEvalDirectionalLight(long ptr long long long long ptr ptr ptr)
@ stub D3DXSHEvalHemisphereLight(long ptr long long ptr ptr ptr)
@ stub D3DXSHEvalSphericalLight(long ptr long long long long ptr ptr ptr)
-@ stub D3DXSHMultiply2(ptr ptr ptr)
+@ stdcall D3DXSHMultiply2(ptr ptr ptr)
@ stdcall D3DXSHMultiply3(ptr ptr ptr)
@ stub D3DXSHMultiply4(ptr ptr ptr)
@ stub D3DXSHMultiply5(ptr ptr ptr)
diff --git a/dlls/d3dx9_36/math.c b/dlls/d3dx9_36/math.c
index 2406929..79a0bca 100644
--- a/dlls/d3dx9_36/math.c
+++ b/dlls/d3dx9_36/math.c
@@ -1995,6 +1995,23 @@ FLOAT WINAPI D3DXSHDot(UINT order, CONST FLOAT *a, CONST FLOAT *b)
return s;
}
+FLOAT* WINAPI D3DXSHMultiply2(FLOAT *out, CONST FLOAT *a, CONST FLOAT *b)
+{
+ FLOAT ta, tb;
+
+ TRACE("(%p, %p, %p)\n", out, a, b);
+
+ ta = 0.28209479f * a[0];
+ tb = 0.28209479f * b[0];
+
+ out[0]= 0.28209479f * D3DXSHDot(2, a, b);
+ out[1] = ta * b[1] + tb * a[1];
+ out[2] = ta * b[2] + tb * a[2];
+ out[3] = ta * b[3] + tb * a[3];
+
+ return out;
+}
+
FLOAT* WINAPI D3DXSHMultiply3(FLOAT *out, CONST FLOAT *a, CONST FLOAT *b)
{
FLOAT t, ta, tb;
diff --git a/dlls/d3dx9_36/tests/math.c b/dlls/d3dx9_36/tests/math.c
index 018081c..66d4689 100644
--- a/dlls/d3dx9_36/tests/math.c
+++ b/dlls/d3dx9_36/tests/math.c
@@ -2422,6 +2422,28 @@ static void test_D3DXSHDot(void)
return;
}
+static void test_D3DXSHMultiply2(void)
+{
+ unsigned int i;
+ FLOAT a[20], b[20], c[20];
+ /* D3DXSHMultiply2 only modifies the first 4 elements of the array */
+ const FLOAT expected[20] =
+ { 3.418594f, 1.698211f, 1.703853f, 1.709494f, 4.0f, 5.0f,
+ 6.0f, 7.0f, 8.0f, 9.0f, 10.0f, 11.0f, 12.0f, 13.0f,
+ 14.0f, 15.0f, 16.0f, 17.0f, 18.0f, 19.0f };
+
+ for (i = 0; i < 20; i++)
+ {
+ a[i] = 1.0f + i / 100.0f;
+ b[i] = 3.0f - i / 100.0f;
+ c[i] = i;
+ }
+
+ D3DXSHMultiply2(c, a, b);
+ for (i = 0; i < 20; i++)
+ ok(relative_error(c[i], expected[i]) < admitted_error, "Expected[%d] = %f, received = %f\n", i, expected[i], c[i]);
+}
+
static void test_D3DXSHMultiply3(void)
{
unsigned int i;
@@ -2490,6 +2512,7 @@ START_TEST(math)
test_D3DXFloat_Array();
test_D3DXSHAdd();
test_D3DXSHDot();
+ test_D3DXSHMultiply2();
test_D3DXSHMultiply3();
test_D3DXSHScale();
}
diff --git a/include/d3dx9math.h b/include/d3dx9math.h
index e31d432..ab3e2b0 100644
--- a/include/d3dx9math.h
+++ b/include/d3dx9math.h
@@ -379,6 +379,7 @@ FLOAT *WINAPI D3DXFloat16To32Array(FLOAT *pout, CONST D3DXFLOAT16 *pin, UINT n);
FLOAT* WINAPI D3DXSHAdd(FLOAT *out, UINT order, CONST FLOAT *a, CONST FLOAT *b);
FLOAT WINAPI D3DXSHDot(UINT order, CONST FLOAT *a, CONST FLOAT *b);
+FLOAT* WINAPI D3DXSHMultiply2(FLOAT *out, CONST FLOAT *a, CONST FLOAT *b);
FLOAT* WINAPI D3DXSHMultiply3(FLOAT *out, CONST FLOAT *a, CONST FLOAT *b);
FLOAT* WINAPI D3DXSHScale(FLOAT *out, UINT order, CONST FLOAT *a, CONST FLOAT scale);
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