[PATCH v2 2/8] d3dx9/tests: Add more tests for loading files with multiple mip levels into textures.

[Connor McAdams]

From: Connor McAdams

Signed-off-by: Connor McAdams 
---
 dlls/d3dx9_36/tests/texture.c | 320 +++++++++++++++++++++++++++++++++-
 1 file changed, 317 insertions(+), 3 deletions(-)

diff --git a/dlls/d3dx9_36/tests/texture.c b/dlls/d3dx9_36/tests/texture.c
index 44040acf086..9ae3357d4a1 100644
--- a/dlls/d3dx9_36/tests/texture.c
+++ b/dlls/d3dx9_36/tests/texture.c
@@ -128,6 +128,91 @@ static const unsigned char png_grayscale[] =
     0x60, 0x82
 };

+/*
+ * 4x4x4 24-bit volume dds, 3 mipmaps. Level 0 is red, level 1 is blue, level 2 is
+ * green.
+ */
+static const BYTE dds_volume_24bit_4_4_4[] =
+{
+    0x44,0x44,0x53,0x20,0x7c,0x00,0x00,0x00,0x0f,0x10,0x82,0x00,0x04,0x00,0x00,0x00,
+    0x04,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x03,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,
+    0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x10,0x40,0x00,
+    0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0x00
+};
+
+/*
+ * 4x4x4 DXT3 volume dds. 3 mipmaps. Level 0 is red, level 1 is blue, level 2 is
+ * green.
+ */
+static const BYTE dds_volume_dxt3_4_4_4[] =
+{
+    0x44,0x44,0x53,0x20,0x7c,0x00,0x00,0x00,0x07,0x10,0x8a,0x00,0x04,0x00,0x00,0x00,
+    0x04,0x00,0x00,0x00,0x0c,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x03,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,
+    0x04,0x00,0x00,0x00,0x44,0x58,0x54,0x33,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x10,0x40,0x00,
+    0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0x00,0xf8,0xaa,0xaa,0xaa,0xaa,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0x00,0xf8,0xaa,0xaa,0xaa,0xaa,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0x00,0xf8,0xaa,0xaa,0xaa,0xaa,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0x00,0xf8,0xaa,0xaa,0xaa,0xaa,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe0,0x07,0xe0,0x07,0xaa,0xaa,0xaa,0xaa,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe0,0x07,0xe0,0x07,0xaa,0xaa,0xaa,0xaa,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x1f,0x00,0x1f,0x00,0xaa,0xaa,0xaa,0xaa,
+};
+
+/*
+ * 8x8 24-bit dds, 4 mipmaps. Level 0 is red, level 1 is green, level 2 is
+ * blue, and level 3 is black.
+ */
+static const BYTE dds_24bit_8_8[] =
+{
+    0x44,0x44,0x53,0x20,0x7c,0x00,0x00,0x00,0x07,0x10,0x0a,0x00,0x08,0x00,0x00,0x00,
+    0x08,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,
+    0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x10,0x40,0x00,
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,
+    0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,
+    0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x00,0x00,0x00,0x00
+};
+
 #define ADMITTED_ERROR 0.0001f

static inline float relative_error(float expected, float got)
@@ -247,6 +332,88 @@ static BOOL compare_color(DWORD c1, DWORD c2, BYTE max_diff)
             && compare_uint((c1 >> 24) & 0xff, (c2 >> 24) & 0xff, max_diff);
 }

+struct surface_readback
+{
+    IDirect3DSurface9 *surface;
+    D3DLOCKED_RECT locked_rect;
+};
+
+static uint32_t get_readback_color(struct surface_readback *rb, uint32_t x, uint32_t y)
+{
+    return rb->locked_rect.pBits
+            ? ((uint32_t *)rb->locked_rect.pBits)[y * rb->locked_rect.Pitch / sizeof(uint32_t) + x] : 0xdeadbeef;
+}
+
+static void release_surface_readback(struct surface_readback *rb)
+{
+    HRESULT hr;
+
+    if (!rb->surface)
+        return;
+    if (rb->locked_rect.pBits && FAILED(hr = IDirect3DSurface9_UnlockRect(rb->surface)))
+        trace("Can't unlock the readback surface, hr %#lx.\n", hr);
+    IDirect3DSurface9_Release(rb->surface);
+}
+
+static void get_texture_surface_readback(IDirect3DDevice9 *device, IDirect3DTexture9 *texture, uint32_t mip_level,
+        struct surface_readback *rb)
+{
+    IDirect3DSurface9 *surface;
+    D3DSURFACE_DESC desc;
+    HRESULT hr;
+
+    memset(rb, 0, sizeof(*rb));
+    hr = IDirect3DTexture9_GetSurfaceLevel(texture, mip_level, &surface);
+    if (FAILED(hr))
+    {
+        trace("Failed to get surface for mip level %d, hr %#lx.\n", mip_level, hr);
+        return;
+    }
+
+    hr = IDirect3DSurface9_GetDesc(surface, &desc);
+    if (FAILED(hr))
+    {
+        trace("Failed to get surface description, hr %#lx.\n", hr);
+        goto exit;
+    }
+
+    hr = IDirect3DDevice9_CreateOffscreenPlainSurface(device, desc.Width, desc.Height, D3DFMT_A8R8G8B8, D3DPOOL_SYSTEMMEM,
+            &rb->surface, NULL);
+    if (FAILED(hr))
+    {
+        trace("Can't create the readback surface, hr %#lx.\n", hr);
+        goto exit;
+    }
+
+    hr = D3DXLoadSurfaceFromSurface(rb->surface, NULL, NULL, surface, NULL, NULL, D3DX_FILTER_NONE, 0);
+    if (FAILED(hr))
+    {
+        trace("Can't load the readback surface, hr %#lx.\n", hr);
+        goto exit;
+    }
+
+    hr = IDirect3DSurface9_LockRect(rb->surface, &rb->locked_rect, NULL, D3DLOCK_READONLY);
+    if (FAILED(hr))
+        trace("Can't lock the readback surface, hr %#lx.\n", hr);
+
+exit:
+    IDirect3DSurface9_Release(surface);
+    if (FAILED(hr))
+    {
+        if (rb->surface)
+            IDirect3DSurface9_Release(rb->surface);
+        rb->surface = NULL;
+    }
+}
+
+#define check_readback_pixel_4bpp(rb, x, y, color, todo) _check_readback_pixel_4bpp(__LINE__, rb, x, y, color, todo)
+static inline void _check_readback_pixel_4bpp(uint32_t line, struct surface_readback *rb, uint32_t x,
+        uint32_t y, uint32_t expected_color, BOOL todo)
+{
+   uint32_t color = get_readback_color(rb, x, y);
+   todo_wine_if(todo) ok_(__FILE__, line)(color == expected_color, "Got color 0x%08x, expected 0x%08x.\n", color, expected_color);
+}
+
 static BOOL is_autogenmipmap_supported(IDirect3DDevice9 *device, D3DRESOURCETYPE resource_type)
 {
     HRESULT hr;
@@ -2011,16 +2178,57 @@ static void test_D3DXCreateTextureFromFileInMemory(IDirect3DDevice9 *device)
         ok(desc.Format == D3DFMT_A8R8G8B8, "Unexpected texture format %#x.\n", desc.Format);
         skip("D3DFMT_DXT3 volume textures are not supported, skipping a test.\n");
     }
-    /* The lower texture levels are apparently generated by filtering the level 0 surface
-     * I.e. following levels from the file are ignored. */
+
+    IDirect3DTexture9_Release(texture);
+
+    /*
+     * All mip levels are pulled from the texture file, even in the case of a
+     * volume texture file.
+     */
+    hr = D3DXCreateTextureFromFileInMemory(device, dds_volume_dxt3_4_4_4, sizeof(dds_volume_dxt3_4_4_4), &texture);
+    ok(hr == D3D_OK, "D3DXCreateTextureFromFileInMemory returned %#lx, expected %#lx.\n", hr, D3D_OK);
+    check_texture_mips(texture, 3, TRUE);
+    if (has_2d_dxt3)
+    {
+        struct surface_readback surface_rb;
+        uint32_t mip_level;
+
+        check_texture_level_desc(texture, 0, D3DFMT_DXT3, 0, D3DPOOL_MANAGED, 0, 0, 4, 4, FALSE);
+        check_texture_level_desc(texture, 1, D3DFMT_DXT3, 0, D3DPOOL_MANAGED, 0, 0, 2, 2, TRUE);
+        check_texture_level_desc(texture, 2, D3DFMT_DXT3, 0, D3DPOOL_MANAGED, 0, 0, 1, 1, TRUE);
+        for (mip_level = 0; mip_level < 3; ++mip_level)
+        {
+            const uint32_t expected_color[3] = { 0xffff0000, 0xff00ff00, 0xff0000ff };
+            BOOL todo = !!mip_level;
+            uint32_t x, y;
+
+            IDirect3DTexture9_GetLevelDesc(texture, mip_level, &desc);
+            get_texture_surface_readback(device, texture, mip_level, &surface_rb);
+            for (y = 0; y < desc.Height; ++y)
+            {
+                for (x = 0; x < desc.Width; ++x)
+                {
+                    check_readback_pixel_4bpp(&surface_rb, x, y, expected_color[mip_level], todo);
+                }
+            }
+            release_surface_readback(&surface_rb);
+        }
+    }
+    else
+    {
+        check_texture_level_desc(texture, 0, D3DFMT_A8R8G8B8, 0, D3DPOOL_MANAGED, 0, 0, 4, 4, FALSE);
+        skip("D3DFMT_DXT3 textures are not supported, skipping a test.\n");
+    }
+
     IDirect3DTexture9_Release(texture);
 }

static void test_D3DXCreateTextureFromFileInMemoryEx(IDirect3DDevice9 *device)
 {
     HRESULT hr;
+    struct surface_readback surface_rb;
+    uint32_t miplevels, mip_level;
     IDirect3DTexture9 *texture;
-    unsigned int miplevels;
     IDirect3DSurface9 *surface;
     D3DXIMAGE_INFO img_info;
     D3DSURFACE_DESC desc;
@@ -2187,6 +2395,112 @@ static void test_D3DXCreateTextureFromFileInMemoryEx(IDirect3DDevice9 *device)
     check_texture_level_desc(texture, 0, D3DFMT_X8R8G8B8, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 1, 1, TRUE);

IDirect3DTexture9_Release(texture);
+
+    /*
+     * Load multiple mip levels from a file and check the resulting pixel
+     * values.
+     */
+    hr = D3DXCreateTextureFromFileInMemoryEx(device, dds_24bit_8_8, sizeof(dds_24bit_8_8),
+            D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, D3DUSAGE_DYNAMIC, D3DFMT_UNKNOWN, D3DPOOL_DEFAULT,
+            D3DX_DEFAULT, D3DX_DEFAULT, 0, &img_info, NULL, &texture);
+    ok(hr == D3D_OK, "D3DXCreateTextureFromFileInMemoryEx returned %#lx, expected %#lx\n", hr, D3D_OK);
+
+    check_texture_mips(texture, 4, FALSE);
+    check_image_info(&img_info, 8, 8, 1, 4, D3DFMT_R8G8B8, D3DRTYPE_TEXTURE, D3DXIFF_DDS, FALSE);
+    check_texture_level_desc(texture, 0, D3DFMT_X8R8G8B8, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 8, 8, FALSE);
+    check_texture_level_desc(texture, 1, D3DFMT_X8R8G8B8, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 4, 4, FALSE);
+    check_texture_level_desc(texture, 2, D3DFMT_X8R8G8B8, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 2, 2, FALSE);
+    check_texture_level_desc(texture, 3, D3DFMT_X8R8G8B8, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 1, 1, FALSE);
+
+    for (mip_level = 0; mip_level < 4; ++mip_level)
+    {
+        const uint32_t expected_color[4] = { 0xffff0000, 0xff00ff00, 0xff0000ff, 0xff000000 };
+        uint32_t x, y;
+
+        IDirect3DTexture9_GetLevelDesc(texture, mip_level, &desc);
+        get_texture_surface_readback(device, texture, mip_level, &surface_rb);
+        for (y = 0; y < desc.Height; ++y)
+        {
+            for (x = 0; x < desc.Width; ++x)
+            {
+                check_readback_pixel_4bpp(&surface_rb, x, y, expected_color[mip_level], FALSE);
+            }
+        }
+        release_surface_readback(&surface_rb);
+    }
+
+    IDirect3DTexture9_Release(texture);
+
+    /* Volume DDS with mips into regular texture tests. */
+    hr = D3DXCreateTextureFromFileInMemoryEx(device, dds_volume_24bit_4_4_4, sizeof(dds_volume_24bit_4_4_4),
+            D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, D3DUSAGE_DYNAMIC, D3DFMT_UNKNOWN, D3DPOOL_DEFAULT,
+            D3DX_DEFAULT, D3DX_DEFAULT, 0, &img_info, NULL, &texture);
+    ok(hr == D3D_OK, "D3DXCreateTextureFromFileInMemoryEx returned %#lx, expected %#lx\n", hr, D3D_OK);
+
+    check_texture_mips(texture, 3, FALSE);
+    check_image_info(&img_info, 4, 4, 4, 3, D3DFMT_R8G8B8, D3DRTYPE_VOLUMETEXTURE, D3DXIFF_DDS, FALSE);
+    check_texture_level_desc(texture, 0, D3DFMT_X8R8G8B8, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 4, 4, FALSE);
+    check_texture_level_desc(texture, 1, D3DFMT_X8R8G8B8, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 2, 2, FALSE);
+    check_texture_level_desc(texture, 2, D3DFMT_X8R8G8B8, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 1, 1, FALSE);
+
+    for (mip_level = 0; mip_level < 3; ++mip_level)
+    {
+        const uint32_t expected_color[3] = { 0xffff0000, 0xff00ff00, 0xff0000ff };
+        BOOL todo = !!mip_level;
+        uint32_t x, y;
+
+        IDirect3DTexture9_GetLevelDesc(texture, mip_level, &desc);
+        get_texture_surface_readback(device, texture, mip_level, &surface_rb);
+        for (y = 0; y < desc.Height; ++y)
+        {
+            for (x = 0; x < desc.Width; ++x)
+            {
+                check_readback_pixel_4bpp(&surface_rb, x, y, expected_color[mip_level], todo);
+            }
+        }
+        release_surface_readback(&surface_rb);
+    }
+
+    IDirect3DTexture9_Release(texture);
+
+    /* DXT3 volume DDS with mips into a regular texture. */
+    if (has_2d_dxt3)
+    {
+        hr = D3DXCreateTextureFromFileInMemoryEx(device, dds_volume_dxt3_4_4_4, sizeof(dds_volume_dxt3_4_4_4),
+                D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, D3DUSAGE_DYNAMIC, D3DFMT_UNKNOWN, D3DPOOL_DEFAULT,
+                D3DX_DEFAULT, D3DX_DEFAULT, 0, &img_info, NULL, &texture);
+        ok(hr == D3D_OK, "D3DXCreateTextureFromFileInMemoryEx returned %#lx, expected %#lx\n", hr, D3D_OK);
+
+        check_texture_mips(texture, 3, TRUE);
+        check_image_info(&img_info, 4, 4, 4, 3, D3DFMT_DXT3, D3DRTYPE_VOLUMETEXTURE, D3DXIFF_DDS, FALSE);
+        check_texture_level_desc(texture, 0, D3DFMT_DXT3, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 4, 4, FALSE);
+        check_texture_level_desc(texture, 1, D3DFMT_DXT3, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 2, 2, TRUE);
+        check_texture_level_desc(texture, 2, D3DFMT_DXT3, D3DUSAGE_DYNAMIC, D3DPOOL_DEFAULT, 0, 0, 1, 1, TRUE);
+
+        for (mip_level = 0; mip_level < 3; ++mip_level)
+        {
+            const uint32_t expected_color[3] = { 0xffff0000, 0xff00ff00, 0xff0000ff };
+            BOOL todo = !!mip_level;
+            uint32_t x, y;
+
+            IDirect3DTexture9_GetLevelDesc(texture, mip_level, &desc);
+            get_texture_surface_readback(device, texture, mip_level, &surface_rb);
+            for (y = 0; y < desc.Height; ++y)
+            {
+                for (x = 0; x < desc.Width; ++x)
+                {
+                    check_readback_pixel_4bpp(&surface_rb, x, y, expected_color[mip_level], todo);
+                }
+            }
+            release_surface_readback(&surface_rb);
+        }
+
+        IDirect3DTexture9_Release(texture);
+    }
+    else
+    {
+        skip("D3DFMT_DXT3 textures are not supported, skipping tests.\n");
+    }
 }

static void test_D3DXCreateCubeTextureFromFileInMemory(IDirect3DDevice9 *device)