C++ D3D_SetError函数代码示例

static int
D3D_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    D3D_TextureData *texturedata;
    HRESULT result;

    D3D_ActivateRenderer(renderer);

    /* Release the previous render target if it wasn't the default one */
    if (data->currentRenderTarget != NULL) {
        IDirect3DSurface9_Release(data->currentRenderTarget);
        data->currentRenderTarget = NULL;
    }

    if (texture == NULL) {
        IDirect3DDevice9_SetRenderTarget(data->device, 0, data->defaultRenderTarget);
        return 0;
    }

    texturedata = (D3D_TextureData *) texture->driverdata;
    result = IDirect3DTexture9_GetSurfaceLevel(texturedata->texture, 0, &data->currentRenderTarget);
    if(FAILED(result)) {
        D3D_SetError("GetSurfaceLevel()", result);
        return -1;
    }
    result = IDirect3DDevice9_SetRenderTarget(data->device, 0, data->currentRenderTarget);
    if(FAILED(result)) {
        D3D_SetError("SetRenderTarget()", result);
        return -1;
    }

    return 0;
}

static int
D3D_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
                     Uint32 format, void * pixels, int pitch)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    D3DSURFACE_DESC desc;
    LPDIRECT3DSURFACE9 backBuffer;
    LPDIRECT3DSURFACE9 surface;
    RECT d3drect;
    D3DLOCKED_RECT locked;
    HRESULT result;

    result = IDirect3DDevice9_GetBackBuffer(data->device, 0, 0, D3DBACKBUFFER_TYPE_MONO, &backBuffer);
    if (FAILED(result)) {
        return D3D_SetError("GetBackBuffer()", result);
    }

    result = IDirect3DSurface9_GetDesc(backBuffer, &desc);
    if (FAILED(result)) {
        IDirect3DSurface9_Release(backBuffer);
        return D3D_SetError("GetDesc()", result);
    }

    result = IDirect3DDevice9_CreateOffscreenPlainSurface(data->device, desc.Width, desc.Height, desc.Format, D3DPOOL_SYSTEMMEM, &surface, NULL);
    if (FAILED(result)) {
        IDirect3DSurface9_Release(backBuffer);
        return D3D_SetError("CreateOffscreenPlainSurface()", result);
    }

    result = IDirect3DDevice9_GetRenderTargetData(data->device, backBuffer, surface);
    if (FAILED(result)) {
        IDirect3DSurface9_Release(surface);
        IDirect3DSurface9_Release(backBuffer);
        return D3D_SetError("GetRenderTargetData()", result);
    }

    d3drect.left = rect->x;
    d3drect.right = rect->x + rect->w;
    d3drect.top = rect->y;
    d3drect.bottom = rect->y + rect->h;

    result = IDirect3DSurface9_LockRect(surface, &locked, &d3drect, D3DLOCK_READONLY);
    if (FAILED(result)) {
        IDirect3DSurface9_Release(surface);
        IDirect3DSurface9_Release(backBuffer);
        return D3D_SetError("LockRect()", result);
    }

    SDL_ConvertPixels(rect->w, rect->h,
                      D3DFMTToPixelFormat(desc.Format), locked.pBits, locked.Pitch,
                      format, pixels, pitch);

    IDirect3DSurface9_UnlockRect(surface);

    IDirect3DSurface9_Release(surface);
    IDirect3DSurface9_Release(backBuffer);

    return 0;
}

static int
D3D_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
                    int count)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    DWORD color;
    Vertex *vertices;
    int i;
    HRESULT result;

    if (data->beginScene) {
        IDirect3DDevice9_BeginScene(data->device);
        data->beginScene = SDL_FALSE;
    }

    D3D_SetBlendMode(data, renderer->blendMode);

    result =
        IDirect3DDevice9_SetTexture(data->device, 0,
                                    (IDirect3DBaseTexture9 *) 0);
    if (FAILED(result)) {
        D3D_SetError("SetTexture()", result);
        return -1;
    }

    color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);

    vertices = SDL_stack_alloc(Vertex, count);
    for (i = 0; i < count; ++i) {
        vertices[i].x = (float) points[i].x;
        vertices[i].y = (float) points[i].y;
        vertices[i].z = 0.0f;
        vertices[i].rhw = 1.0f;
        vertices[i].color = color;
        vertices[i].u = 0.0f;
        vertices[i].v = 0.0f;
    }
    result =
        IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINESTRIP, count-1,
                                         vertices, sizeof(*vertices));

    /* DirectX 9 has the same line rasterization semantics as GDI,
       so we need to close the endpoint of the line */
    if (points[0].x != points[count-1].x || points[0].y != points[count-1].y) {
        vertices[0].x = (float) points[count-1].x;
        vertices[0].y = (float) points[count-1].y;
        result = IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, 1, vertices, sizeof(*vertices));
    }

    SDL_stack_free(vertices);
    if (FAILED(result)) {
        D3D_SetError("DrawPrimitiveUP()", result);
        return -1;
    }
    return 0;
}

static int
D3D_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    DWORD color;
    Vertex vertices[2];
    HRESULT result;

    if (data->beginScene) {
        IDirect3DDevice9_BeginScene(data->device);
        data->beginScene = SDL_FALSE;
    }

    color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);

    vertices[0].x = (float) x1 - 0.5f;
    vertices[0].y = (float) y1 - 0.5f;
    vertices[0].z = 0.0f;
    vertices[0].rhw = 1.0f;
    vertices[0].color = color;
    vertices[0].u = 0.0f;
    vertices[0].v = 0.0f;

    vertices[1].x = (float) x2 - 0.5f;
    vertices[1].y = (float) y2 - 0.5f;
    vertices[1].z = 0.0f;
    vertices[1].rhw = 1.0f;
    vertices[1].color = color;
    vertices[1].u = 0.0f;
    vertices[1].v = 0.0f;

    D3D_SetBlendMode(data, renderer->blendMode);

    result =
        IDirect3DDevice9_SetTexture(data->device, 0,
                                    (IDirect3DBaseTexture9 *) 0);
    if (FAILED(result)) {
        D3D_SetError("SetTexture()", result);
        return -1;
    }
    result =
        IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINELIST, 1,
                                         vertices, sizeof(*vertices));
    if (FAILED(result)) {
        D3D_SetError("DrawPrimitiveUP()", result);
        return -1;
    }
    return 0;
}

static int
D3D_UpdateClipRect(SDL_Renderer * renderer)
{
    const SDL_Rect *rect = &renderer->clip_rect;
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    RECT r;
    HRESULT result;

    if (!SDL_RectEmpty(rect)) {
        IDirect3DDevice9_SetRenderState(data->device, D3DRS_SCISSORTESTENABLE, TRUE);
        r.left = rect->x;
        r.top = rect->y;
        r.right = rect->w + rect->w;
        r.bottom = rect->y + rect->h;

        result = IDirect3DDevice9_SetScissorRect(data->device, &r);
        if (result != D3D_OK) {
            D3D_SetError("SetScissor()", result);
            return -1;
        }
    } else {
        IDirect3DDevice9_SetRenderState(data->device, D3DRS_SCISSORTESTENABLE, FALSE);
    }
    return 0;
}

static int
D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
                const SDL_Rect * rect, int markDirty, void **pixels,
                int *pitch)
{
    D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;

    if (data->yuv) {
        return SDL_SW_LockYUVTexture(data->yuv, rect, markDirty, pixels,
                                     pitch);
    } else {
        RECT d3drect;
        D3DLOCKED_RECT locked;
        HRESULT result;

        d3drect.left = rect->x;
        d3drect.right = rect->x + rect->w;
        d3drect.top = rect->y;
        d3drect.bottom = rect->y + rect->h;

        result =
            IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect,
                                       markDirty ? 0 :
                                       D3DLOCK_NO_DIRTY_UPDATE);
        if (FAILED(result)) {
            D3D_SetError("LockRect()", result);
            return -1;
        }
        *pixels = locked.pBits;
        *pitch = locked.Pitch;
        return 0;
    }
}

static int
D3D_Reset(SDL_Renderer * renderer)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    HRESULT result;

    /* Release the default render target before reset */
    if (data->defaultRenderTarget) {
        IDirect3DSurface9_Release(data->defaultRenderTarget);
        data->defaultRenderTarget = NULL;
    }

    result = IDirect3DDevice9_Reset(data->device, &data->pparams);
    if (FAILED(result)) {
        if (result == D3DERR_DEVICELOST) {
            /* Don't worry about it, we'll reset later... */
            return 0;
        } else {
            return D3D_SetError("Reset()", result);
        }
    }
    IDirect3DDevice9_SetVertexShader(data->device, NULL);
    IDirect3DDevice9_SetFVF(data->device,
                            D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_TEX1);
    IDirect3DDevice9_SetRenderState(data->device, D3DRS_CULLMODE,
                                    D3DCULL_NONE);
    IDirect3DDevice9_SetRenderState(data->device, D3DRS_LIGHTING, FALSE);
    IDirect3DDevice9_GetRenderTarget(data->device, 0, &data->defaultRenderTarget);
    return 0;
}

static int
D3D_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
                     int count)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    DWORD color;
    Vertex *vertices;
    int i;
    HRESULT result;

    if (data->beginScene) {
        IDirect3DDevice9_BeginScene(data->device);
        data->beginScene = SDL_FALSE;
    }

    D3D_SetBlendMode(data, renderer->blendMode);

    result =
        IDirect3DDevice9_SetTexture(data->device, 0,
                                    (IDirect3DBaseTexture9 *) 0);
    if (FAILED(result)) {
        D3D_SetError("SetTexture()", result);
        return -1;
    }

    color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);

    vertices = SDL_stack_alloc(Vertex, count);
    for (i = 0; i < count; ++i) {
        vertices[i].x = (float) points[i].x;
        vertices[i].y = (float) points[i].y;
        vertices[i].z = 0.0f;
        vertices[i].rhw = 1.0f;
        vertices[i].color = color;
        vertices[i].u = 0.0f;
        vertices[i].v = 0.0f;
    }
    result =
        IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, count,
                                         vertices, sizeof(*vertices));
    SDL_stack_free(vertices);
    if (FAILED(result)) {
        D3D_SetError("DrawPrimitiveUP()", result);
        return -1;
    }
    return 0;
}

static int
D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
                  const SDL_Rect * rect, const void *pixels, int pitch)
{
    D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
    D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;
    RECT d3drect;
    D3DLOCKED_RECT locked;
    const Uint8 *src;
    Uint8 *dst;
    int row, length;
    HRESULT result;

#ifdef USE_DYNAMIC_TEXTURE
    if (texture->access == SDL_TEXTUREACCESS_STREAMING &&
        rect->x == 0 && rect->y == 0 &&
        rect->w == texture->w && rect->h == texture->h) {
        result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, NULL, D3DLOCK_DISCARD);
    } else
#endif
    {
        d3drect.left = rect->x;
        d3drect.right = rect->x + rect->w;
        d3drect.top = rect->y;
        d3drect.bottom = rect->y + rect->h;
        result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);
    }

    if (FAILED(result)) {
        D3D_SetError("LockRect()", result);
        return -1;
    }

    src = pixels;
    dst = locked.pBits;
    length = rect->w * SDL_BYTESPERPIXEL(texture->format);
    if (length == pitch && length == locked.Pitch) {
        SDL_memcpy(dst, src, length*rect->h);
    } else {
        for (row = 0; row < rect->h; ++row) {
            SDL_memcpy(dst, src, length);
            src += pitch;
            dst += locked.Pitch;
        }
    }
    IDirect3DTexture9_UnlockRect(data->texture, 0);

    return 0;
}

static int
D3D_RenderClear(SDL_Renderer * renderer)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    DWORD color;
    HRESULT result;

    if (D3D_ActivateRenderer(renderer) < 0) {
        return -1;
    }

    color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);

    /* Don't reset the viewport if we don't have to! */
    if (!renderer->viewport.x && !renderer->viewport.y &&
        renderer->viewport.w == data->pparams.BackBufferWidth &&
        renderer->viewport.h == data->pparams.BackBufferHeight) {
        result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0);
    } else {
        D3DVIEWPORT9 viewport;

        /* Clear is defined to clear the entire render target */
        viewport.X = 0;
        viewport.Y = 0;
        viewport.Width = data->pparams.BackBufferWidth;
        viewport.Height = data->pparams.BackBufferHeight;
        viewport.MinZ = 0.0f;
        viewport.MaxZ = 1.0f;
        IDirect3DDevice9_SetViewport(data->device, &viewport);

        result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0);

        /* Reset the viewport */
        viewport.X = renderer->viewport.x;
        viewport.Y = renderer->viewport.y;
        viewport.Width = renderer->viewport.w;
        viewport.Height = renderer->viewport.h;
        viewport.MinZ = 0.0f;
        viewport.MaxZ = 1.0f;
        IDirect3DDevice9_SetViewport(data->device, &viewport);
    }

    if (FAILED(result)) {
        D3D_SetError("Clear()", result);
        return -1;
    }
    return 0;
}

static int
D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
    D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;
    SDL_Window *window = renderer->window;
    SDL_VideoDisplay *display = window->display;
    Uint32 display_format = display->current_mode.format;
    D3D_TextureData *data;
    HRESULT result;

    data = (D3D_TextureData *) SDL_calloc(1, sizeof(*data));
    if (!data) {
        SDL_OutOfMemory();
        return -1;
    }

    texture->driverdata = data;

    if (SDL_ISPIXELFORMAT_FOURCC(texture->format) &&
        (texture->format != SDL_PIXELFORMAT_YUY2 ||
         !D3D_IsTextureFormatAvailable(renderdata->d3d, renderdata->adapter,
                                       display_format, texture->format))
        && (texture->format != SDL_PIXELFORMAT_YVYU
            || !D3D_IsTextureFormatAvailable(renderdata->d3d, renderdata->adapter,
                                             display_format, texture->format))) {
        data->yuv =
            SDL_SW_CreateYUVTexture(texture->format, texture->w, texture->h);
        if (!data->yuv) {
            return -1;
        }
        data->format = display->current_mode.format;
    } else {
        data->format = texture->format;
    }

    result =
        IDirect3DDevice9_CreateTexture(renderdata->device, texture->w,
                                       texture->h, 1, 0,
                                       PixelFormatToD3DFMT(data->format),
                                       D3DPOOL_SDL, &data->texture, NULL);
    if (FAILED(result)) {
        D3D_SetError("CreateTexture()", result);
        return -1;
    }

    return 0;
}

static int
D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
    D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;
    SDL_Window *window = renderer->window;
    D3DFORMAT display_format = renderdata->pparams.BackBufferFormat;
    D3D_TextureData *data;
    D3DPOOL pool;
    DWORD usage;
    HRESULT result;

    data = (D3D_TextureData *) SDL_calloc(1, sizeof(*data));
    if (!data) {
        SDL_OutOfMemory();
        return -1;
    }
    data->scaleMode = GetScaleQuality();

    texture->driverdata = data;

#ifdef USE_DYNAMIC_TEXTURE
    if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
        pool = D3DPOOL_DEFAULT;
        usage = D3DUSAGE_DYNAMIC;
    } else
#endif
    if (texture->access == SDL_TEXTUREACCESS_TARGET) {
        /* D3DPOOL_MANAGED does not work with D3DUSAGE_RENDERTARGET */
        pool = D3DPOOL_DEFAULT;
        usage = D3DUSAGE_RENDERTARGET;
    } else {
        pool = D3DPOOL_MANAGED;
        usage = 0;
    }

    result =
        IDirect3DDevice9_CreateTexture(renderdata->device, texture->w,
                                       texture->h, 1, usage,
                                       PixelFormatToD3DFMT(texture->format),
                                       pool, &data->texture, NULL);
    if (FAILED(result)) {
        D3D_SetError("CreateTexture()", result);
        return -1;
    }

    return 0;
}

static int
D3D_ActivateRenderer(SDL_Renderer * renderer)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    HRESULT result;

    if (data->updateSize) {
        SDL_Window *window = renderer->window;
        int w, h;

        SDL_GetWindowSize(window, &w, &h);
        data->pparams.BackBufferWidth = w;
        data->pparams.BackBufferHeight = h;
        if (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) {
            data->pparams.BackBufferFormat =
                PixelFormatToD3DFMT(SDL_GetWindowPixelFormat(window));
        } else {
            data->pparams.BackBufferFormat = D3DFMT_UNKNOWN;
        }
        if (D3D_Reset(renderer) < 0) {
            return -1;
        }
        D3D_UpdateViewport(renderer);

        data->updateSize = SDL_FALSE;
    }
    if (data->beginScene) {
        result = IDirect3DDevice9_BeginScene(data->device);
        if (result == D3DERR_DEVICELOST) {
            if (D3D_Reset(renderer) < 0) {
                return -1;
            }
            result = IDirect3DDevice9_BeginScene(data->device);
        }
        if (FAILED(result)) {
            D3D_SetError("BeginScene()", result);
            return -1;
        }
        data->beginScene = SDL_FALSE;
    }
    return 0;
}

static int
D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
                const SDL_Rect * rect, void **pixels, int *pitch)
{
    D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
    RECT d3drect;
    D3DLOCKED_RECT locked;
    HRESULT result;

    d3drect.left = rect->x;
    d3drect.right = rect->x + rect->w;
    d3drect.top = rect->y;
    d3drect.bottom = rect->y + rect->h;

    result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);
    if (FAILED(result)) {
        return D3D_SetError("LockRect()", result);
    }
    *pixels = locked.pBits;
    *pitch = locked.Pitch;
    return 0;
}

static int
D3D_Reset(SDL_Renderer * renderer)
{
    D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
    HRESULT result;

    result = IDirect3DDevice9_Reset(data->device, &data->pparams);
    if (FAILED(result)) {
        if (result == D3DERR_DEVICELOST) {
            /* Don't worry about it, we'll reset later... */
            return 0;
        } else {
            D3D_SetError("Reset()", result);
            return -1;
        }
    }
    IDirect3DDevice9_SetVertexShader(data->device, NULL);
    IDirect3DDevice9_SetFVF(data->device,
                            D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX1);
    IDirect3DDevice9_SetRenderState(data->device, D3DRS_CULLMODE,
                                    D3DCULL_NONE);
    IDirect3DDevice9_SetRenderState(data->device, D3DRS_LIGHTING, FALSE);
    return 0;
}