[v2 PATCH] d3dx9: Implement ID3DXTextureShader::GetFunction().

[Matteo Bruni]

From: Nikolay Sivov <nsivov(a)codeweavers.com>

Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni(a)codeweavers.com>
---
v2: Slightly improved a couple of tests.

 dlls/d3dx9_36/shader.c        | 28 ++++++++++++++++++++++++----
 dlls/d3dx9_36/tests/texture.c | 34 ++++++++++++++++++++++++++++++++--
 2 files changed, 56 insertions(+), 6 deletions(-)

diff --git a/dlls/d3dx9_36/shader.c b/dlls/d3dx9_36/shader.c
index fe0f99180ac..d5b58222ca2 100644
--- a/dlls/d3dx9_36/shader.c
+++ b/dlls/d3dx9_36/shader.c
@@ -2349,6 +2349,8 @@ struct d3dx9_texture_shader
 {
     ID3DXTextureShader ID3DXTextureShader_iface;
     LONG ref;
+
+    ID3DXBuffer *byte_code;
 };
 
 static inline struct d3dx9_texture_shader *impl_from_ID3DXTextureShader(ID3DXTextureShader *iface)
@@ -2392,6 +2394,8 @@ static ULONG WINAPI d3dx9_texture_shader_Release(ID3DXTextureShader *iface)
 
     if (!refcount)
     {
+        if (texture_shader->byte_code)
+            ID3DXBuffer_Release(texture_shader->byte_code);
         HeapFree(GetProcessHeap(), 0, texture_shader);
     }
 
@@ -2400,9 +2404,14 @@ static ULONG WINAPI d3dx9_texture_shader_Release(ID3DXTextureShader *iface)
 
 static HRESULT WINAPI d3dx9_texture_shader_GetFunction(ID3DXTextureShader *iface, struct ID3DXBuffer **function)
 {
-    FIXME("iface %p, function %p stub.\n", iface, function);
+    struct d3dx9_texture_shader *texture_shader = impl_from_ID3DXTextureShader(iface);
 
-    return E_NOTIMPL;
+    TRACE("iface %p, function %p.\n", iface, function);
+
+    *function = texture_shader->byte_code;
+    ID3DXBuffer_AddRef(*function);
+
+    return S_OK;
 }
 
 static HRESULT WINAPI d3dx9_texture_shader_GetConstantBuffer(ID3DXTextureShader *iface, struct ID3DXBuffer **constant_buffer)
@@ -2594,19 +2603,30 @@ static const struct ID3DXTextureShaderVtbl d3dx9_texture_shader_vtbl =
 HRESULT WINAPI D3DXCreateTextureShader(const DWORD *function, ID3DXTextureShader **texture_shader)
 {
     struct d3dx9_texture_shader *object;
+    unsigned int size;
+    HRESULT hr;
 
     TRACE("function %p, texture_shader %p.\n", function, texture_shader);
 
     if (!function || !texture_shader)
         return D3DERR_INVALIDCALL;
 
-    object = HeapAlloc(GetProcessHeap(), 0, sizeof(*object));
-    if (!object)
+    if (!(size = D3DXGetShaderSize(function)))
+        return D3DXERR_INVALIDDATA;
+
+    if (!(object = heap_alloc_zero(sizeof(*object))))
         return E_OUTOFMEMORY;
 
     object->ID3DXTextureShader_iface.lpVtbl = &d3dx9_texture_shader_vtbl;
     object->ref = 1;
 
+    if (FAILED(hr = D3DXCreateBuffer(size, &object->byte_code)))
+    {
+        IUnknown_Release(&object->ID3DXTextureShader_iface);
+        return hr;
+    }
+    memcpy(ID3DXBuffer_GetBufferPointer(object->byte_code), function, size);
+
     *texture_shader = &object->ID3DXTextureShader_iface;
 
     return D3D_OK;
diff --git a/dlls/d3dx9_36/tests/texture.c b/dlls/d3dx9_36/tests/texture.c
index bec7ba48279..26e5aa3dbb6 100644
--- a/dlls/d3dx9_36/tests/texture.c
+++ b/dlls/d3dx9_36/tests/texture.c
@@ -2353,17 +2353,20 @@ float4 main(float3 pos : POSITION, float3 size : PSIZE) : COLOR
     };
     IDirect3DVolumeTexture9 *volume_texture;
     IDirect3DCubeTexture9 *cube_texture;
+    D3DXCONSTANTTABLE_DESC ctab_desc;
+    ID3DXBuffer *buffer, *buffer2;
     D3DPRESENT_PARAMETERS d3dpp;
     IDirect3DTexture9 *texture;
     IDirect3DDevice9 *device;
     ID3DXTextureShader *tx;
     unsigned int x, y, z;
-    ID3DXBuffer *buffer;
     unsigned int *data;
     D3DLOCKED_RECT lr;
     D3DLOCKED_BOX lb;
     IDirect3D9 *d3d;
     D3DCAPS9 caps;
+    D3DXHANDLE h;
+    DWORD size;
     HRESULT hr;
     HWND wnd;
 
@@ -2386,15 +2389,42 @@ float4 main(float3 pos : POSITION, float3 size : PSIZE) : COLOR
     ok(SUCCEEDED(hr), "Got unexpected hr %#x.\n", hr);
 
     hr = tx->lpVtbl->GetFunction(tx, &buffer);
-    todo_wine ok(SUCCEEDED(hr), "Failed to get texture shader bytecode.\n");
+    ok(hr == D3D_OK, "Unexpected hr %#x.\n", hr);
+
+    hr = tx->lpVtbl->GetFunction(tx, &buffer2);
+    ok(hr == D3D_OK, "Unexpected hr %#x.\n", hr);
+    ok(buffer2 == buffer, "Unexpected buffer object.\n");
+    ID3DXBuffer_Release(buffer2);
+
+    size = ID3DXBuffer_GetBufferSize(buffer);
+    ok(size == 224, "Unexpected buffer size %u.\n", size);
+
+    ID3DXBuffer_Release(buffer);
+
+    /* Constant buffer */
+    hr = tx->lpVtbl->GetConstantBuffer(tx, &buffer);
+todo_wine
+    ok(SUCCEEDED(hr), "Failed to get texture shader constant buffer.\n");
     if (FAILED(hr))
     {
         skip("Texture shaders not supported, skipping further tests.\n");
         IUnknown_Release(tx);
         return;
     }
+
+    size = ID3DXBuffer_GetBufferSize(buffer);
+    ok(!size, "Unexpected buffer size %u.\n", size);
+
     ID3DXBuffer_Release(buffer);
 
+    hr = tx->lpVtbl->GetDesc(tx, &ctab_desc);
+    ok(hr == S_OK, "Failed to get constant description, hr %#x.\n", hr);
+    ok(!ctab_desc.Constants, "Unexpected number of constants %u.\n", ctab_desc.Constants);
+
+    /* Constant table access calls, without constant table. */
+    h = tx->lpVtbl->GetConstant(tx, NULL, 0);
+    ok(!h, "Unexpected handle %p.\n", h);
+
     if (!(wnd = CreateWindowA("static", "d3dx9_test", WS_OVERLAPPEDWINDOW, 0, 0,
             640, 480, NULL, NULL, NULL, NULL)))
     {
-- 
2.26.3