[PATCH 0/4] MR8767: d3d11: Disable anisotropic filtering for sampler states with zero MaxAnisotropy.

[PATCH 1/4] d3d11/tests: Test that sampler states with anisotropic filtering and zero MaxAnisotropy can be created.

[Henri Verbeet]

From: Henri Verbeet

The documentation suggests this isn't a valid combination, but it works
anyway.
---
 dlls/d3d11/tests/d3d11.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/dlls/d3d11/tests/d3d11.c b/dlls/d3d11/tests/d3d11.c
index fce02156b65..c3b65a82372 100644
--- a/dlls/d3d11/tests/d3d11.c
+++ b/dlls/d3d11/tests/d3d11.c
@@ -5465,6 +5465,16 @@ static void test_create_sampler_state(void)
     refcount = ID3D11SamplerState_Release(sampler_state1);
     ok(!refcount, "Got unexpected refcount %lu.\n", refcount);

+    desc.Filter = D3D11_FILTER_ANISOTROPIC;
+    desc.MaxAnisotropy = 0;
+    hr = ID3D11Device_CreateSamplerState(device, &desc, &sampler_state1);
+    ok(hr == S_OK, "Got hr %#lx.\n", hr);
+    ID3D11SamplerState_GetDesc(sampler_state1, &desc);
+    ok(desc.Filter == D3D11_FILTER_ANISOTROPIC, "Got filter %#x.\n", desc.Filter);
+    ok(!desc.MaxAnisotropy, "Got max anisotropy %u.\n", desc.MaxAnisotropy);
+    refcount = ID3D11SamplerState_Release(sampler_state1);
+    ok(!refcount, "Got refcount %lu.\n", refcount);
+
     for (i = 0; i < ARRAY_SIZE(desc_conversion_tests); ++i)
     {
         const struct test *current = &desc_conversion_tests[i];

[PATCH 2/4] d3d10core/tests: Test that sampler states with anisotropic filtering and zero MaxAnisotropy can be created.

[Henri Verbeet]

From: Henri Verbeet

---
 dlls/d3d10core/tests/d3d10core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/dlls/d3d10core/tests/d3d10core.c b/dlls/d3d10core/tests/d3d10core.c
index f1504a1b815..4df8b7d7cbf 100644
--- a/dlls/d3d10core/tests/d3d10core.c
+++ b/dlls/d3d10core/tests/d3d10core.c
@@ -4152,6 +4152,16 @@ static void test_create_sampler_state(void)
     refcount = ID3D10SamplerState_Release(sampler_state1);
     ok(!refcount, "Got unexpected refcount %lu.\n", refcount);

+    desc.Filter = D3D10_FILTER_ANISOTROPIC;
+    desc.MaxAnisotropy = 0;
+    hr = ID3D10Device_CreateSamplerState(device, &desc, &sampler_state1);
+    ok(hr == S_OK, "Got hr %#lx.\n", hr);
+    ID3D10SamplerState_GetDesc(sampler_state1, &desc);
+    ok(desc.Filter == D3D10_FILTER_ANISOTROPIC, "Got filter %#x.\n", desc.Filter);
+    ok(!desc.MaxAnisotropy, "Got max anisotropy %u.\n", desc.MaxAnisotropy);
+    refcount = ID3D10SamplerState_Release(sampler_state1);
+    ok(!refcount, "Got refcount %lu.\n", refcount);
+
     hr = ID3D10Device_QueryInterface(device, &IID_ID3D11Device, (void **)&d3d11_device);
     ok(SUCCEEDED(hr) || broken(hr == E_NOINTERFACE) /* Not available on all Windows versions. */,
             "Device should implement ID3D11Device.\n");

[PATCH 3/4] d3d11: Disable anisotropic filtering for sampler states with zero MaxAnisotropy.

[Henri Verbeet]

From: Henri Verbeet

It's not a meaningful combination. Additionally, on the OpenGL side it
is an error to set TEXTURE_MAX_ANISOTROPY to a value less than 1.0, and
Vulkan's VUID-VkSamplerCreateInfo-anisotropyEnable-01071 imposes a
similar restriction.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57946
---
 dlls/d3d11/state.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dlls/d3d11/state.c b/dlls/d3d11/state.c
index 981f8ab51bf..8818cb6a827 100644
--- a/dlls/d3d11/state.c
+++ b/dlls/d3d11/state.c
@@ -1616,7 +1616,10 @@ static HRESULT d3d_sampler_state_init(struct d3d_sampler_state *state, struct d3
     wined3d_desc.min_lod = desc->MinLOD;
     wined3d_desc.max_lod = max(desc->MinLOD, desc->MaxLOD);
     wined3d_desc.mip_base_level = 0;
-    wined3d_desc.max_anisotropy = D3D11_DECODE_IS_ANISOTROPIC_FILTER(desc->Filter) ? desc->MaxAnisotropy : 1;
+    if (D3D11_DECODE_IS_ANISOTROPIC_FILTER(desc->Filter) && desc->MaxAnisotropy)
+        wined3d_desc.max_anisotropy = desc->MaxAnisotropy;
+    else
+        wined3d_desc.max_anisotropy = 1;
     wined3d_desc.compare = wined3d_texture_compare_from_d3d11(desc->Filter);
     wined3d_desc.comparison_func = wined3d_cmp_func_from_d3d11(desc->ComparisonFunc);
     wined3d_desc.srgb_decode = TRUE;

[PATCH 4/4] wined3d: Disable anisotropic filtering for zero max_anisotropy in sampler_desc_from_sampler_states().

[Henri Verbeet]

From: Henri Verbeet

---
 dlls/wined3d/stateblock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/wined3d/stateblock.c b/dlls/wined3d/stateblock.c
index 5803f166955..08fe65817ec 100644
--- a/dlls/wined3d/stateblock.c
+++ b/dlls/wined3d/stateblock.c
@@ -2884,7 +2884,7 @@ static void sampler_desc_from_sampler_states(struct wined3d_sampler_desc *desc,
         desc->mip_base_level = min(max(sampler_states[WINED3D_SAMP_MAX_MIP_LEVEL], texture->lod), texture->level_count - 1);

desc->max_anisotropy = sampler_states[WINED3D_SAMP_MAX_ANISOTROPY];
-    if ((sampler_states[WINED3D_SAMP_MAG_FILTER] != WINED3D_TEXF_ANISOTROPIC
+    if (!desc->max_anisotropy || (sampler_states[WINED3D_SAMP_MAG_FILTER] != WINED3D_TEXF_ANISOTROPIC
                 && sampler_states[WINED3D_SAMP_MIN_FILTER] != WINED3D_TEXF_ANISOTROPIC
                 && sampler_states[WINED3D_SAMP_MIP_FILTER] != WINED3D_TEXF_ANISOTROPIC)
             || (texture->flags & WINED3D_TEXTURE_COND_NP2))