vertexdeclaration.c 9.77 KB
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/*
 * vertex declaration implementation
 *
 * Copyright 2002-2005 Raphael Junqueira
 * Copyright 2004 Jason Edmeades
 * Copyright 2004 Christian Costa
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 * Copyright 2005 Oliver Stieber
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 * Copyright 2009 Henri Verbeet for CodeWeavers
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

#include "config.h"
#include "wined3d_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(d3d_decl);

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static void dump_wined3dvertexelement(const WINED3DVERTEXELEMENT *element) {
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    TRACE("     format: %s (%#x)\n", debug_d3dformat(element->format), element->format);
    TRACE(" input_slot: %u\n", element->input_slot);
    TRACE("     offset: %u\n", element->offset);
    TRACE("output_slot: %u\n", element->output_slot);
    TRACE("     method: %s (%#x)\n", debug_d3ddeclmethod(element->method), element->method);
    TRACE("      usage: %s (%#x)\n", debug_d3ddeclusage(element->usage), element->usage);
    TRACE("  usage_idx: %u\n", element->usage_idx);
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}

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/* *******************************************
   IWineD3DVertexDeclaration IUnknown parts follow
   ******************************************* */
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static HRESULT WINAPI IWineD3DVertexDeclarationImpl_QueryInterface(IWineD3DVertexDeclaration *iface, REFIID riid, LPVOID *ppobj)
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{
    IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
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    TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
    if (IsEqualGUID(riid, &IID_IUnknown)
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        || IsEqualGUID(riid, &IID_IWineD3DBase)
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        || IsEqualGUID(riid, &IID_IWineD3DVertexDeclaration)){
        IUnknown_AddRef(iface);
        *ppobj = This;
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        return S_OK;
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    }
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    *ppobj = NULL;
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    return E_NOINTERFACE;
}

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static ULONG WINAPI IWineD3DVertexDeclarationImpl_AddRef(IWineD3DVertexDeclaration *iface) {
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    IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
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    TRACE("(%p) : AddRef increasing from %d\n", This, This->ref);
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    return InterlockedIncrement(&This->ref);
}

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static ULONG WINAPI IWineD3DVertexDeclarationImpl_Release(IWineD3DVertexDeclaration *iface) {
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    IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
    ULONG ref;
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    TRACE("(%p) : Releasing from %d\n", This, This->ref);
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    ref = InterlockedDecrement(&This->ref);
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    if (!ref)
    {
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        HeapFree(GetProcessHeap(), 0, This->elements);
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        This->parent_ops->wined3d_object_destroyed(This->parent);
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        HeapFree(GetProcessHeap(), 0, This);
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    }
    return ref;
}

/* *******************************************
   IWineD3DVertexDeclaration parts follow
   ******************************************* */

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static HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetParent(IWineD3DVertexDeclaration *iface, IUnknown** parent){
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    IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;

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    *parent= This->parent;
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    IUnknown_AddRef(*parent);
    TRACE("(%p) : returning %p\n", This, *parent);
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    return WINED3D_OK;
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}

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static BOOL declaration_element_valid_ffp(const WINED3DVERTEXELEMENT *element)
{
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    switch(element->usage)
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    {
        case WINED3DDECLUSAGE_POSITION:
        case WINED3DDECLUSAGE_POSITIONT:
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            switch(element->format)
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            {
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                case WINED3DFMT_R32G32_FLOAT:
                case WINED3DFMT_R32G32B32_FLOAT:
                case WINED3DFMT_R32G32B32A32_FLOAT:
                case WINED3DFMT_R16G16_SINT:
                case WINED3DFMT_R16G16B16A16_SINT:
                case WINED3DFMT_R16G16_FLOAT:
                case WINED3DFMT_R16G16B16A16_FLOAT:
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                    return TRUE;
                default:
                    return FALSE;
            }

        case WINED3DDECLUSAGE_BLENDWEIGHT:
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            switch(element->format)
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            {
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                case WINED3DFMT_R32_FLOAT:
                case WINED3DFMT_R32G32_FLOAT:
                case WINED3DFMT_R32G32B32_FLOAT:
                case WINED3DFMT_R32G32B32A32_FLOAT:
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                case WINED3DFMT_B8G8R8A8_UNORM:
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                case WINED3DFMT_R8G8B8A8_UINT:
                case WINED3DFMT_R16G16_SINT:
                case WINED3DFMT_R16G16B16A16_SINT:
                case WINED3DFMT_R16G16_FLOAT:
                case WINED3DFMT_R16G16B16A16_FLOAT:
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                    return TRUE;
                default:
                    return FALSE;
            }

        case WINED3DDECLUSAGE_NORMAL:
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            switch(element->format)
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            {
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                case WINED3DFMT_R32G32B32_FLOAT:
                case WINED3DFMT_R32G32B32A32_FLOAT:
                case WINED3DFMT_R16G16B16A16_SINT:
                case WINED3DFMT_R16G16B16A16_FLOAT:
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                    return TRUE;
                default:
                    return FALSE;
            }

        case WINED3DDECLUSAGE_TEXCOORD:
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            switch(element->format)
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            {
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                case WINED3DFMT_R32_FLOAT:
                case WINED3DFMT_R32G32_FLOAT:
                case WINED3DFMT_R32G32B32_FLOAT:
                case WINED3DFMT_R32G32B32A32_FLOAT:
                case WINED3DFMT_R16G16_SINT:
                case WINED3DFMT_R16G16B16A16_SINT:
                case WINED3DFMT_R16G16_FLOAT:
                case WINED3DFMT_R16G16B16A16_FLOAT:
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                    return TRUE;
                default:
                    return FALSE;
            }

        case WINED3DDECLUSAGE_COLOR:
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            switch(element->format)
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            {
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                case WINED3DFMT_R32G32B32_FLOAT:
                case WINED3DFMT_R32G32B32A32_FLOAT:
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                case WINED3DFMT_B8G8R8A8_UNORM:
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                case WINED3DFMT_R8G8B8A8_UINT:
                case WINED3DFMT_R16G16B16A16_SINT:
                case WINED3DFMT_R8G8B8A8_UNORM:
                case WINED3DFMT_R16G16B16A16_SNORM:
                case WINED3DFMT_R16G16B16A16_UNORM:
                case WINED3DFMT_R16G16B16A16_FLOAT:
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                    return TRUE;
                default:
                    return FALSE;
            }

        default:
            return FALSE;
    }
}

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static const IWineD3DVertexDeclarationVtbl IWineD3DVertexDeclaration_Vtbl =
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{
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    /* IUnknown */
    IWineD3DVertexDeclarationImpl_QueryInterface,
    IWineD3DVertexDeclarationImpl_AddRef,
    IWineD3DVertexDeclarationImpl_Release,
    /* IWineD3DVertexDeclaration */
    IWineD3DVertexDeclarationImpl_GetParent,
};
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HRESULT vertexdeclaration_init(IWineD3DVertexDeclarationImpl *declaration, IWineD3DDeviceImpl *device,
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        const WINED3DVERTEXELEMENT *elements, UINT element_count,
        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
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{
    const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
    WORD preloaded = 0; /* MAX_STREAMS, 16 */
    unsigned int i;
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    if (TRACE_ON(d3d_decl))
    {
        for (i = 0; i < element_count; ++i)
        {
            dump_wined3dvertexelement(elements + i);
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        }
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    }
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    declaration->lpVtbl = &IWineD3DVertexDeclaration_Vtbl;
    declaration->ref = 1;
    declaration->parent = parent;
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    declaration->parent_ops = parent_ops;
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    declaration->device = device;
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    declaration->elements = HeapAlloc(GetProcessHeap(), 0, sizeof(*declaration->elements) * element_count);
    if (!declaration->elements)
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    {
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        ERR("Failed to allocate elements memory.\n");
        return E_OUTOFMEMORY;
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    }
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    declaration->element_count = element_count;
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    /* Do some static analysis on the elements to make reading the
     * declaration more comfortable for the drawing code. */
    for (i = 0; i < element_count; ++i)
    {
        struct wined3d_vertex_declaration_element *e = &declaration->elements[i];
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        e->format_desc = getFormatDescEntry(elements[i].format, gl_info);
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        e->ffp_valid = declaration_element_valid_ffp(&elements[i]);
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        e->input_slot = elements[i].input_slot;
        e->offset = elements[i].offset;
        e->output_slot = elements[i].output_slot;
        e->method = elements[i].method;
        e->usage = elements[i].usage;
        e->usage_idx = elements[i].usage_idx;
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        if (e->usage == WINED3DDECLUSAGE_POSITIONT) declaration->position_transformed = TRUE;
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        /* Find the streams used in the declaration. The vertex buffers have
         * to be loaded when drawing, but filter tesselation pseudo streams. */
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        if (e->input_slot >= MAX_STREAMS) continue;
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        if (!e->format_desc->gl_vtx_format)
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        {
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            FIXME("The application tries to use an unsupported format (%s), returning E_FAIL.\n",
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                    debug_d3dformat(elements[i].format));
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            HeapFree(GetProcessHeap(), 0, declaration->elements);
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            return E_FAIL;
        }

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        if (e->offset & 0x3)
        {
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            WARN("Declaration element %u is not 4 byte aligned(%u), returning E_FAIL.\n", i, e->offset);
            HeapFree(GetProcessHeap(), 0, declaration->elements);
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            return E_FAIL;
        }

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        if (!(preloaded & (1 << e->input_slot)))
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        {
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            declaration->streams[declaration->num_streams] = e->input_slot;
            ++declaration->num_streams;
            preloaded |= 1 << e->input_slot;
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        }
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        if (elements[i].format == WINED3DFMT_R16G16_FLOAT || elements[i].format == WINED3DFMT_R16G16B16A16_FLOAT)
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        {
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            if (!gl_info->supported[ARB_HALF_FLOAT_VERTEX]) declaration->half_float_conv_needed = TRUE;
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        }
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    }

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    return WINED3D_OK;
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}