basetexture.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

        This->baseTexture.states[WINED3DTEXSTA_MAXMIPLEVEL]   = 0;
        This->baseTexture.states[WINED3DTEXSTA_MAXANISOTROPY] = 0;
        This->baseTexture.states[WINED3DTEXSTA_SRGBTEXTURE]   = 0;
        This->baseTexture.states[WINED3DTEXSTA_ELEMENTINDEX]  = 0;
        This->baseTexture.states[WINED3DTEXSTA_DMAPOFFSET]    = 0;
        This->baseTexture.states[WINED3DTEXSTA_TSSADDRESSW]   = WINED3DTADDRESS_WRAP;
        IWineD3DBaseTexture_SetDirty(iface, TRUE);
        isNewTexture = TRUE;
    }

    /* Bind the texture */
    if (This->baseTexture.textureName != 0) {
        glBindTexture(textureDimensions, This->baseTexture.textureName);
        checkGLcall("glBindTexture");
        if (isNewTexture) {
            /* For a new texture we have to set the textures levels after binding the texture.
            * In theory this is all we should ever have to do, but because ATI's drivers are broken, we
            * also need to set the texture dimensions before the texture is set */
            TRACE("Setting GL_TEXTURE_MAX_LEVEL to %d\n", This->baseTexture.levels - 1);
            glTexParameteri(textureDimensions, GL_TEXTURE_MAX_LEVEL, This->baseTexture.levels - 1);
            checkGLcall("glTexParameteri(textureDimensions, GL_TEXTURE_MAX_LEVEL, This->baseTexture.levels)");
            if(textureDimensions==GL_TEXTURE_CUBE_MAP_ARB) {
                /* Cubemaps are always set to clamp, regardeless of the sampler state. */
                glTexParameteri(textureDimensions, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
                glTexParameteri(textureDimensions, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
                glTexParameteri(textureDimensions, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
            }
        }
		
    } else { /* this only happened if we've run out of openGL textures */
        WARN("This texture doesn't have an openGL texture assigned to it\n");
        hr =  WINED3DERR_INVALIDCALL;
    }

    LEAVE_GL();
    return hr;
}

HRESULT WINAPI IWineD3DBaseTextureImpl_UnBindTexture(IWineD3DBaseTexture *iface) {
    IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
    UINT textureDimensions;

    TRACE("(%p) : About to bind texture\n", This);
    textureDimensions = IWineD3DBaseTexture_GetTextureDimensions(iface);

    ENTER_GL();

    glBindTexture(textureDimensions, 0);
#if 0 /* TODO: context manager support */
     IWineD3DContextManager_PopState(This->contextManager, textureDimensions, ENABLED, NOW /* make sure the state is applied now */);
#else
    glDisable(textureDimensions);
#endif

    LEAVE_GL();
    return WINED3D_OK;
}

UINT WINAPI IWineD3DBaseTextureImpl_GetTextureDimensions(IWineD3DBaseTexture *iface){
    IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
    FIXME("(%p) : This shouldn't be called\n", This);
    return WINED3D_OK;
}

static inline GLenum warpLookupType(WINED3DSAMPLERSTATETYPE Type) {
    switch(Type) {
    case WINED3DSAMP_ADDRESSU:
        return GL_TEXTURE_WRAP_S;
    case WINED3DSAMP_ADDRESSV:
        return GL_TEXTURE_WRAP_T;
    case WINED3DSAMP_ADDRESSW:
        return GL_TEXTURE_WRAP_R;
    default:
        FIXME("Unexpected warp type %d\n", Type);
        return 0;
    }
}

static inline void apply_wrap(const GLint textureDimensions, const DWORD state, const GLint type) {
    GLint wrapParm;

    if (state < minLookup[WINELOOKUP_WARPPARAM] || state > maxLookup[WINELOOKUP_WARPPARAM]) {
        FIXME("Unrecognized or unsupported WINED3DTADDRESS_U value %d\n", state);
    } else {
        if(textureDimensions==GL_TEXTURE_CUBE_MAP_ARB) {
            /* Cubemaps are always set to clamp, regardeless of the sampler state. */
            wrapParm = GL_CLAMP_TO_EDGE;
        } else {
            wrapParm = stateLookup[WINELOOKUP_WARPPARAM][state - minLookup[WINELOOKUP_WARPPARAM]];
        }
        TRACE("Setting WRAP_S to %d for %x\n", wrapParm, textureDimensions);
        glTexParameteri(textureDimensions, type, wrapParm);
        checkGLcall("glTexParameteri(..., type, wrapParm)");
    }
}

void WINAPI IWineD3DBaseTextureImpl_ApplyStateChanges(IWineD3DBaseTexture *iface,
                                    const DWORD textureStates[WINED3D_HIGHEST_TEXTURE_STATE + 1],
                                    const DWORD samplerStates[WINED3D_HIGHEST_SAMPLER_STATE + 1]) {
    IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
    DWORD state;
    GLint textureDimensions = IWineD3DBaseTexture_GetTextureDimensions(iface);

    IWineD3DBaseTexture_PreLoad(iface);

    if(samplerStates[WINED3DSAMP_ADDRESSU]      != This->baseTexture.states[WINED3DTEXSTA_ADDRESSU]) {
        state = samplerStates[WINED3DSAMP_ADDRESSU];
        apply_wrap(textureDimensions, state, GL_TEXTURE_WRAP_S);
        This->baseTexture.states[WINED3DTEXSTA_ADDRESSU] = state;
    }

    if(samplerStates[WINED3DSAMP_ADDRESSV]      != This->baseTexture.states[WINED3DTEXSTA_ADDRESSV]) {
        state = samplerStates[WINED3DSAMP_ADDRESSV];
        apply_wrap(textureDimensions, state, GL_TEXTURE_WRAP_T);
        This->baseTexture.states[WINED3DTEXSTA_ADDRESSV] = state;
    }

    if(samplerStates[WINED3DSAMP_ADDRESSW]      != This->baseTexture.states[WINED3DTEXSTA_ADDRESSW]) {
        state = samplerStates[WINED3DSAMP_ADDRESSW];
        apply_wrap(textureDimensions, state, GL_TEXTURE_WRAP_R);
        This->baseTexture.states[WINED3DTEXSTA_ADDRESSW] = state;
    }

    if(samplerStates[WINED3DSAMP_BORDERCOLOR]   != This->baseTexture.states[WINED3DTEXSTA_BORDERCOLOR]) {
        float col[4];

        state = samplerStates[WINED3DSAMP_BORDERCOLOR];
        D3DCOLORTOGLFLOAT4(state, col);
        TRACE("Setting border color for %u to %x\n", textureDimensions, state);
        glTexParameterfv(textureDimensions, GL_TEXTURE_BORDER_COLOR, &col[0]);
        checkGLcall("glTexParameteri(..., GL_TEXTURE_BORDER_COLOR, ...)");
        This->baseTexture.states[WINED3DTEXSTA_BORDERCOLOR] = state;
    }

    if(samplerStates[WINED3DSAMP_MAGFILTER]     != This->baseTexture.states[WINED3DTEXSTA_MAGFILTER]) {
        GLint glValue;
        state = samplerStates[WINED3DSAMP_MAGFILTER];
        if (state < minLookup[WINELOOKUP_MAGFILTER] || state > maxLookup[WINELOOKUP_MAGFILTER]) {
            FIXME("Unrecognized or unsupported MAGFILTER* value %d\n", state);
        }
        glValue = stateLookup[WINELOOKUP_MAGFILTER][state - minLookup[WINELOOKUP_MAGFILTER]];
        TRACE("ValueMAG=%d setting MAGFILTER to %x\n", state, glValue);
        glTexParameteri(textureDimensions, GL_TEXTURE_MAG_FILTER, glValue);
        /* We need to reset the Aniotropic filtering state when we change the mag filter to WINED3DTEXF_ANISOTROPIC (this seems a bit weird, check the documentataion to see how it should be switched off. */
        if (GL_SUPPORT(EXT_TEXTURE_FILTER_ANISOTROPIC) && WINED3DTEXF_ANISOTROPIC == state) {
            glTexParameteri(textureDimensions, GL_TEXTURE_MAX_ANISOTROPY_EXT, samplerStates[WINED3DSAMP_MAXANISOTROPY]);
        }
        This->baseTexture.states[WINED3DTEXSTA_MAGFILTER] = state;
    }

    if(samplerStates[WINED3DSAMP_MINFILTER]     != This->baseTexture.states[WINED3DTEXSTA_MINFILTER] ||
       samplerStates[WINED3DSAMP_MIPFILTER]     != This->baseTexture.states[WINED3DTEXSTA_MIPFILTER] ||
       samplerStates[WINED3DSAMP_MAXMIPLEVEL]   != This->baseTexture.states[WINED3DTEXSTA_MAXMIPLEVEL]) {
        GLint glValue;

        This->baseTexture.states[WINED3DTEXSTA_MIPFILTER] = samplerStates[WINED3DSAMP_MIPFILTER];
        This->baseTexture.states[WINED3DTEXSTA_MINFILTER] = samplerStates[WINED3DSAMP_MINFILTER];
        This->baseTexture.states[WINED3DTEXSTA_MAXMIPLEVEL] = samplerStates[WINED3DSAMP_MAXMIPLEVEL];

        if (This->baseTexture.states[WINED3DTEXSTA_MINFILTER] < WINED3DTEXF_NONE ||
            This->baseTexture.states[WINED3DTEXSTA_MIPFILTER] < WINED3DTEXF_NONE ||
            This->baseTexture.states[WINED3DTEXSTA_MINFILTER] > WINED3DTEXF_ANISOTROPIC ||
            This->baseTexture.states[WINED3DTEXSTA_MIPFILTER] > WINED3DTEXF_LINEAR)
        {

            FIXME("Unrecognized or unsupported D3DSAMP_MINFILTER value %d D3DSAMP_MIPFILTER value %d\n",
                  This->baseTexture.states[WINED3DTEXSTA_MINFILTER],
                  This->baseTexture.states[WINED3DTEXSTA_MIPFILTER]);
        }
        glValue = minMipLookup[min(max(samplerStates[WINED3DSAMP_MINFILTER],WINED3DTEXF_NONE), WINED3DTEXF_ANISOTROPIC)]
                [min(max(samplerStates[WINED3DSAMP_MIPFILTER],WINED3DTEXF_NONE), WINED3DTEXF_LINEAR)];

        TRACE("ValueMIN=%d, ValueMIP=%d, setting MINFILTER to %x\n",
              samplerStates[WINED3DSAMP_MINFILTER],
              samplerStates[WINED3DSAMP_MIPFILTER], glValue);
        glTexParameteri(textureDimensions, GL_TEXTURE_MIN_FILTER, glValue);
        checkGLcall("glTexParameter GL_TEXTURE_MIN_FILTER, ...");

        if(This->baseTexture.states[WINED3DTEXSTA_MIPFILTER] == WINED3DTEXF_NONE) {
            glValue = 0;
        } else if(This->baseTexture.states[WINED3DTEXSTA_MAXMIPLEVEL] >= This->baseTexture.levels) {
            glValue = This->baseTexture.levels - 1;
        } else {
            glValue = This->baseTexture.states[WINED3DTEXSTA_MAXMIPLEVEL];
        }
        glTexParameteri(textureDimensions, GL_TEXTURE_BASE_LEVEL, glValue);
    }

    if(samplerStates[WINED3DSAMP_MAXANISOTROPY] != This->baseTexture.states[WINED3DTEXSTA_MAXANISOTROPY]) {
        if (GL_SUPPORT(EXT_TEXTURE_FILTER_ANISOTROPIC)) {
            glTexParameteri(textureDimensions, GL_TEXTURE_MAX_ANISOTROPY_EXT, samplerStates[WINED3DSAMP_MAXANISOTROPY]);
            checkGLcall("glTexParameteri GL_TEXTURE_MAX_ANISOTROPY_EXT ...");
        } else {
            WARN("Unsupported in local OpenGL implementation: glTexParameteri GL_TEXTURE_MAX_ANISOTROPY_EXT\n");
        }
        This->baseTexture.states[WINED3DTEXSTA_MAXANISOTROPY] = samplerStates[WINED3DSAMP_MAXANISOTROPY];
    }
}


static const IWineD3DBaseTextureVtbl IWineD3DBaseTexture_Vtbl =
{
    /* IUnknown */
    IWineD3DBaseTextureImpl_QueryInterface,
    IWineD3DBaseTextureImpl_AddRef,
    IWineD3DBaseTextureImpl_Release,
    /* IWineD3DResource */
    IWineD3DBaseTextureImpl_GetParent,
    IWineD3DBaseTextureImpl_GetDevice,
    IWineD3DBaseTextureImpl_SetPrivateData,
    IWineD3DBaseTextureImpl_GetPrivateData,
    IWineD3DBaseTextureImpl_FreePrivateData,
    IWineD3DBaseTextureImpl_SetPriority,
    IWineD3DBaseTextureImpl_GetPriority,
    IWineD3DBaseTextureImpl_PreLoad,
    IWineD3DBaseTextureImpl_GetType,
    /*IWineD3DBaseTexture*/
    IWineD3DBaseTextureImpl_SetLOD,
    IWineD3DBaseTextureImpl_GetLOD,
    IWineD3DBaseTextureImpl_GetLevelCount,
    IWineD3DBaseTextureImpl_SetAutoGenFilterType,
    IWineD3DBaseTextureImpl_GetAutoGenFilterType,
    IWineD3DBaseTextureImpl_GenerateMipSubLevels,
    IWineD3DBaseTextureImpl_SetDirty,
    IWineD3DBaseTextureImpl_GetDirty,
    /* internal */
    IWineD3DBaseTextureImpl_BindTexture,
    IWineD3DBaseTextureImpl_UnBindTexture,
    IWineD3DBaseTextureImpl_GetTextureDimensions,
    IWineD3DBaseTextureImpl_ApplyStateChanges

};