shroud 0.2.3

Universal library for discovering rendering functions of render engines: DirectX9, DirectX10, DirectX11, DirectX12
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208

use strum::{EnumCount, IntoEnumIterator};
use strum_macros::{EnumCount, EnumIter};
use windows::Win32::{
    Foundation::{FALSE, TRUE},
    Graphics::Direct3D9::{
        Direct3DCreate9Ex, D3DADAPTER_DEFAULT, D3DCREATE_DISABLE_DRIVER_MANAGEMENT,
        D3DCREATE_SOFTWARE_VERTEXPROCESSING, D3DDEVTYPE_NULLREF, D3DFMT_UNKNOWN,
        D3DMULTISAMPLE_NONE, D3DPRESENT_PARAMETERS, D3DSWAPEFFECT_DISCARD, D3D_SDK_VERSION,
    },
};

use crate::{get_process_window, ShroudError, ShroudResult};

#[derive(Debug, EnumIter, EnumCount)]
pub enum DirectX9DeviceMethods {
    QueryInterface,
    AddRef,
    Release,
    TestCooperativeLevel,
    GetAvailableTextureMem,
    EvictManagedResources,
    GetDirect3D,
    GetDeviceCaps,
    GetDisplayMode,
    GetCreationParameters,
    SetCursorProperties,
    SetCursorPosition,
    ShowCursor,
    CreateAdditionalSwapChain,
    GetSwapChain,
    GetNumberOfSwapChains,
    Reset,
    Present,
    GetBackBuffer,
    GetRasterStatus,
    SetDialogBoxMode,
    SetGammaRamp,
    GetGammaRamp,
    CreateTexture,
    CreateVolumeTexture,
    CreateCubeTexture,
    CreateVertexBuffer,
    CreateIndexBuffer,
    CreateRenderTarget,
    CreateDepthStencilSurface,
    UpdateSurface,
    UpdateTexture,
    GetRenderTargetData,
    GetFrontBufferData,
    StretchRect,
    ColorFill,
    CreateOffscreenPlainSurface,
    SetRenderTarget,
    GetRenderTarget,
    SetDepthStencilSurface,
    GetDepthStencilSurface,
    BeginScene,
    EndScene,
    Clear,
    SetTransform,
    GetTransform,
    MultiplyTransform,
    SetViewport,
    GetViewport,
    SetMaterial,
    GetMaterial,
    SetLight,
    GetLight,
    LightEnable,
    GetLightEnable,
    SetClipPlane,
    GetClipPlane,
    SetRenderState,
    GetRenderState,
    CreateStateBlock,
    BeginStateBlock,
    EndStateBlock,
    SetClipStatus,
    GetClipStatus,
    GetTexture,
    SetTexture,
    GetTextureStageState,
    SetTextureStageState,
    GetSamplerState,
    SetSamplerState,
    ValidateDevice,
    SetPaletteEntries,
    GetPaletteEntries,
    SetCurrentTexturePalette,
    GetCurrentTexturePalette,
    SetScissorRect,
    GetScissorRect,
    SetSoftwareVertexProcessing,
    GetSoftwareVertexProcessing,
    SetNPatchMode,
    GetNPatchMode,
    DrawPrimitive,
    DrawIndexedPrimitive,
    DrawPrimitiveUP,
    DrawIndexedPrimitiveUP,
    ProcessVertices,
    CreateVertexDeclaration,
    SetVertexDeclaration,
    GetVertexDeclaration,
    SetFVF,
    GetFVF,
    CreateVertexShader,
    SetVertexShader,
    GetVertexShader,
    SetVertexShaderConstantF,
    GetVertexShaderConstantF,
    SetVertexShaderConstantI,
    GetVertexShaderConstantI,
    SetVertexShaderConstantB,
    GetVertexShaderConstantB,
    SetStreamSource,
    GetStreamSource,
    SetStreamSourceFreq,
    GetStreamSourceFreq,
    SetIndices,
    GetIndices,
    CreatePixelShader,
    SetPixelShader,
    GetPixelShader,
    SetPixelShaderConstantF,
    GetPixelShaderConstantF,
    SetPixelShaderConstantI,
    GetPixelShaderConstantI,
    SetPixelShaderConstantB,
    GetPixelShaderConstantB,
    DrawRectPatch,
    DrawTriPatch,
    DeletePatch,
    CreateQuery,
}

pub struct DirectX9Methods {
    device_vmt: Vec<*const usize>,
}

impl DirectX9Methods {
    pub fn device_vmt(&self) -> &Vec<*const usize> {
        &self.device_vmt
    }
}

impl std::fmt::Debug for DirectX9Methods {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        writeln!(f, "DirectX9 Method Table")?;
        writeln!(f, "Devices Virtual Method Table")?;
        for (i, method) in DirectX9DeviceMethods::iter().enumerate() {
            writeln!(f, "\t[{}] {:?} {:#?}", i, method, self.device_vmt[i])?;
        }
        writeln!(f)?;
        Ok(())
    }
}

pub fn methods() -> ShroudResult<DirectX9Methods> {
    let window = get_process_window().ok_or(ShroudError::Window)?;
    // let swapchain_desc = default_swapchain_descriptor(window);
    // let feature_level: *mut D3D_FEATURE_LEVEL = std::ptr::null_mut();

    let direct3d_9 = unsafe { Direct3DCreate9Ex(D3D_SDK_VERSION) }
        .map_err(|e| ShroudError::DirectX9Create(e.code()))?;

    let mut present_params = D3DPRESENT_PARAMETERS {
        BackBufferWidth: 0,
        BackBufferHeight: 0,
        BackBufferFormat: D3DFMT_UNKNOWN,
        BackBufferCount: 0,
        MultiSampleType: D3DMULTISAMPLE_NONE,
        MultiSampleQuality: 0,
        SwapEffect: D3DSWAPEFFECT_DISCARD,
        hDeviceWindow: window,
        Windowed: TRUE,
        EnableAutoDepthStencil: FALSE,
        AutoDepthStencilFormat: D3DFMT_UNKNOWN,
        Flags: 0,
        FullScreen_RefreshRateInHz: 0,
        PresentationInterval: 0,
    };

    let mut device = None;
    unsafe {
        direct3d_9
            .CreateDevice(
                D3DADAPTER_DEFAULT,
                D3DDEVTYPE_NULLREF,
                window,
                (D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_DISABLE_DRIVER_MANAGEMENT) as u32,
                &mut present_params,
                &mut device,
            )
            .map_err(|e| ShroudError::DirectX9CreateDevice(e.code()))?
    };

    let device = device.ok_or(ShroudError::Expectation("Dx11 Context created"))?;
    let device_vmt = unsafe {
        std::slice::from_raw_parts(
            std::mem::transmute::<_, *const *const *const usize>(device).read(),
            DirectX9DeviceMethods::COUNT,
        )
        .to_vec()
    };

    Ok(DirectX9Methods { device_vmt })
}