If you have a windows license, you can use a native d3dx8.dll to check your test. That is I do ;) And as said henri said, the result matix will be the previous. I had a test to prove it David
--- En date de : Sam 1.11.08, Jérôme Gardou <jerome.gardou@gmail.com> a écrit :
De: Jérôme Gardou <jerome.gardou@gmail.com> Objet: Re: D3DXMatrixstack: where to go.... À: "Henri Verbeet" <hverbeet@gmail.com> Cc: "wine-devel" <wine-devel@winehq.org> Date: Samedi 1 Novembre 2008, 0h17
Henri Verbeet a écrit : > 2008/10/31 Jérôme Gardou <jerome.gardou@gmail.com>: > >> OK, patches will be sent soon. By the way, what if I call multiply on a
new >> stack, the push, then pop ? Will the top matrix be identity, or the one with >> which I multiplied the first time ? >> >> I guess this calls a testcase ... >> >> > I think it should return the result of the multiplication, but tests > wouldn't hurt, of course. > > I think this should return identity... Anyway, could someone try this one on a native installation ?
From b4c72e5e0737d6fa98f352765298bbc5f86d390a Mon Sep 17 00:00:00 2001
From: =?utf-8?q?J=C3=A9r=C3=B4me=20Gardou?=
Date: Sat, 1 Nov 2008 00:13:53 +0100
Subject: [PATCH] Test to know whether the top of a matrix stack is ALWAYS identity
---
dlls/d3dx8/tests/math.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/dlls/d3dx8/tests/math.c b/dlls/d3dx8/tests/math.c
index f38ff26..9f5207a 100644
--- a/dlls/d3dx8/tests/math.c
+++ b/dlls/d3dx8/tests/math.c
@@ -1442,7 +1442,7 @@ static void test_matrix_stack(void)
hr = ID3DXMatrixStack_LoadMatrix(stack, NULL);
ok(hr == D3DERR_INVALIDCALL, "LoadMatrix returned %#x, expected D3DERR_INVALIDCALL\n", hr);
-
+
hr = ID3DXMatrixStack_LoadMatrix(stack, &mat1);
ok(SUCCEEDED(hr), "LoadMatrix failed, hr %#x\n", hr);
expect_mat(&mat1, ID3DXMatrixStack_GetTop(stack));
@@ -1479,6 +1479,19 @@ static void test_matrix_stack(void)
ok(SUCCEEDED(hr), "Pop failed, hr %#x\n", hr);
ok(D3DXMatrixIsIdentity(ID3DXMatrixStack_GetTop(stack)), "The top should be an identity matrix\n");
+ hr = ID3DXMatrixStack_MultMatrix(stack, &mat2) ;
+ ok(SUCCEEDED(hr), "Multiplication failed");
+ /* Identity * mat2 = mat2 */
+ expect_mat(&mat2, ID3DXMatrixStack_GetTop(stack)) ;
+
+ hr = ID3DXMatrixStack_Push(stack);
+ ok(SUCCEEDED(hr), "Push failed, hr %#x\n", hr);
+
+ hr = ID3DXMatrixStack_Pop(stack);
+ ok(SUCCEEDED(hr), "Pop failed, hr %#x\n", hr);
+ /* here we are on the bottom of the stack... is it always identity? */
+ ok(D3DXMatrixIsIdentity(ID3DXMatrixStack_GetTop(stack)), "The top should be an identity matrix\n");
+
refcount = ID3DXMatrixStack_Release(stack);
ok(!refcount, "Matrix stack has %u references left.\n", refcount);
}
--
1.5.4.3
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