wine/dlls/wined3d/pixelshader.c

/*
 * shaders implementation
 *
 * Copyright 2002-2003 Jason Edmeades
 * Copyright 2002-2003 Raphael Junqueira
 * Copyright 2005 Oliver Stieber
 * Copyright 2006 Ivan Gyurdiev
 *
 * 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
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include "config.h"

#include <math.h>
#include <stdio.h>

#include "wined3d_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);

#define GLINFO_LOCATION ((IWineD3DImpl *)(((IWineD3DDeviceImpl *)This->wineD3DDevice)->wineD3D))->gl_info

#if 0 /* Must not be 1 in cvs version */
# define PSTRACE(A) TRACE A
# define TRACE_VSVECTOR(name) TRACE( #name "=(%f, %f, %f, %f)\n", name.x, name.y, name.z, name.w)
#else
# define PSTRACE(A)
# define TRACE_VSVECTOR(name)
#endif

#define GLNAME_REQUIRE_GLSL  ((const char *)1)
/* *******************************************
   IWineD3DPixelShader IUnknown parts follow
   ******************************************* */
static HRESULT  WINAPI IWineD3DPixelShaderImpl_QueryInterface(IWineD3DPixelShader *iface, REFIID riid, LPVOID *ppobj)
{
    IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
    TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
    if (IsEqualGUID(riid, &IID_IUnknown)
        || IsEqualGUID(riid, &IID_IWineD3DBase)
        || IsEqualGUID(riid, &IID_IWineD3DBaseShader)
        || IsEqualGUID(riid, &IID_IWineD3DPixelShader)) {
        IUnknown_AddRef(iface);
        *ppobj = This;
        return S_OK;
    }
    *ppobj = NULL;
    return E_NOINTERFACE;
}

static ULONG  WINAPI IWineD3DPixelShaderImpl_AddRef(IWineD3DPixelShader *iface) {
    IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
    TRACE("(%p) : AddRef increasing from %ld\n", This, This->ref);
    return InterlockedIncrement(&This->ref);
}

static ULONG  WINAPI IWineD3DPixelShaderImpl_Release(IWineD3DPixelShader *iface) {
    IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
    ULONG ref;
    TRACE("(%p) : Releasing from %ld\n", This, This->ref);
    ref = InterlockedDecrement(&This->ref);
    if (ref == 0) {
        HeapFree(GetProcessHeap(), 0, This);
        if (wined3d_settings.shader_mode == SHADER_GLSL && This->baseShader.prgId != 0) {
            /* If this shader is still attached to a program, GL will perform a lazy delete */
            TRACE("Deleting shader object %u\n", This->baseShader.prgId);
            GL_EXTCALL(glDeleteObjectARB(This->baseShader.prgId));
            checkGLcall("glDeleteObjectARB");
        }
    }
    return ref;
}

/* *******************************************
   IWineD3DPixelShader IWineD3DPixelShader parts follow
   ******************************************* */

static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetParent(IWineD3DPixelShader *iface, IUnknown** parent){
    IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;

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

static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetDevice(IWineD3DPixelShader* iface, IWineD3DDevice **pDevice){
    IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
    IWineD3DDevice_AddRef((IWineD3DDevice *)This->wineD3DDevice);
    *pDevice = (IWineD3DDevice *)This->wineD3DDevice;
    TRACE("(%p) returning %p\n", This, *pDevice);
    return WINED3D_OK;
}


static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetFunction(IWineD3DPixelShader* impl, VOID* pData, UINT* pSizeOfData) {
  IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)impl;
  TRACE("(%p) : pData(%p), pSizeOfData(%p)\n", This, pData, pSizeOfData);

  if (NULL == pData) {
    *pSizeOfData = This->baseShader.functionLength;
    return WINED3D_OK;
  }
  if (*pSizeOfData < This->baseShader.functionLength) {
    *pSizeOfData = This->baseShader.functionLength;
    return WINED3DERR_MOREDATA;
  }
  if (NULL == This->baseShader.function) { /* no function defined */
    TRACE("(%p) : GetFunction no User Function defined using NULL to %p\n", This, pData);
    (*(DWORD **) pData) = NULL;
  } else {
    if (This->baseShader.functionLength == 0) {

    }
    TRACE("(%p) : GetFunction copying to %p\n", This, pData);
    memcpy(pData, This->baseShader.function, This->baseShader.functionLength);
  }
  return WINED3D_OK;
}

/*******************************
 * pshader functions software VM
 */

static void pshader_add(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = s0->x + s1->x;
    d->y = s0->y + s1->y;
    d->z = s0->z + s1->z;
    d->w = s0->w + s1->w;
    PSTRACE(("executing add: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
                s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_dp3(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = d->y = d->z = d->w = s0->x * s1->x + s0->y * s1->y + s0->z * s1->z;
    PSTRACE(("executing dp3: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
                s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_dp4(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = d->y = d->z = d->w = s0->x * s1->x + s0->y * s1->y + s0->z * s1->z + s0->w * s1->w;
    PSTRACE(("executing dp4: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_dst(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = 1.0f;
    d->y = s0->y * s1->y;
    d->z = s0->z;
    d->w = s1->w;
    PSTRACE(("executing dst: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_expp(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    union {
        float f;
        DWORD d;
    } tmp;

    tmp.f = floorf(s0->w);
    d->x  = powf(2.0f, tmp.f);
    d->y  = s0->w - tmp.f;
    tmp.f = powf(2.0f, s0->w);
    tmp.d &= 0xFFFFFF00U;
    d->z  = tmp.f;
    d->w  = 1.0f;
    PSTRACE(("executing exp: s0=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
                    s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

static void pshader_logp(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    float tmp_f = fabsf(s0->w);
    d->x = d->y = d->z = d->w = (0.0f != tmp_f) ? logf(tmp_f) / logf(2.0f) : -HUGE_VAL;
    PSTRACE(("executing logp: s0=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
                s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

static void pshader_mad(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1, WINED3DSHADERVECTOR* s2) {
    d->x = s0->x * s1->x + s2->x;
    d->y = s0->y * s1->y + s2->y;
    d->z = s0->z * s1->z + s2->z;
    d->w = s0->w * s1->w + s2->w;
    PSTRACE(("executing mad: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) s2=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, s2->x, s2->y, s2->z, s2->w, d->x, d->y, d->z, d->w));
}

static void pshader_max(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = (s0->x >= s1->x) ? s0->x : s1->x;
    d->y = (s0->y >= s1->y) ? s0->y : s1->y;
    d->z = (s0->z >= s1->z) ? s0->z : s1->z;
    d->w = (s0->w >= s1->w) ? s0->w : s1->w;
    PSTRACE(("executing max: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_min(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = (s0->x < s1->x) ? s0->x : s1->x;
    d->y = (s0->y < s1->y) ? s0->y : s1->y;
    d->z = (s0->z < s1->z) ? s0->z : s1->z;
    d->w = (s0->w < s1->w) ? s0->w : s1->w;
    PSTRACE(("executing min: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_mov(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    d->x = s0->x;
    d->y = s0->y;
    d->z = s0->z;
    d->w = s0->w;
    PSTRACE(("executing mov: s0=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

static void pshader_mul(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = s0->x * s1->x;
    d->y = s0->y * s1->y;
    d->z = s0->z * s1->z;
    d->w = s0->w * s1->w;
    PSTRACE(("executing mul: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_nop(void) {
    /* NOPPPP ahhh too easy ;) */
    PSTRACE(("executing nop\n"));
}

static void pshader_rcp(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    d->x = d->y = d->z = d->w = (0.0f == s0->w) ? HUGE_VAL : 1.0f / s0->w;
    PSTRACE(("executing rcp: s0=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

static void pshader_rsq(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    float tmp_f = fabsf(s0->w);
    d->x = d->y = d->z = d->w = (0.0f == tmp_f) ? HUGE_VAL : ((1.0f != tmp_f) ? 1.0f / sqrtf(tmp_f) : 1.0f);
    PSTRACE(("executing rsq: s0=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

static void pshader_sge(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = (s0->x >= s1->x) ? 1.0f : 0.0f;
    d->y = (s0->y >= s1->y) ? 1.0f : 0.0f;
    d->z = (s0->z >= s1->z) ? 1.0f : 0.0f;
    d->w = (s0->w >= s1->w) ? 1.0f : 0.0f;
    PSTRACE(("executing sge: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_slt(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = (s0->x < s1->x) ? 1.0f : 0.0f;
    d->y = (s0->y < s1->y) ? 1.0f : 0.0f;
    d->z = (s0->z < s1->z) ? 1.0f : 0.0f;
    d->w = (s0->w < s1->w) ? 1.0f : 0.0f;
    PSTRACE(("executing slt: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_sub(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = s0->x - s1->x;
    d->y = s0->y - s1->y;
    d->z = s0->z - s1->z;
    d->w = s0->w - s1->w;
    PSTRACE(("executing sub: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

/**
 * Version 1.1 specific
 */

static void pshader_exp(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    d->x = d->y = d->z = d->w = powf(2.0f, s0->w);
    PSTRACE(("executing exp: s0=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

static void pshader_log(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    float tmp_f = fabsf(s0->w);
    d->x = d->y = d->z = d->w = (0.0f != tmp_f) ? logf(tmp_f) / logf(2.0f) : -HUGE_VAL;
    PSTRACE(("executing log: s0=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

static void pshader_frc(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    d->x = s0->x - floorf(s0->x);
    d->y = s0->y - floorf(s0->y);
    d->z = 0.0f;
    d->w = 1.0f;
    PSTRACE(("executing frc: s0=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
        s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

typedef FLOAT D3DMATRIX44[4][4];
typedef FLOAT D3DMATRIX43[4][3];
typedef FLOAT D3DMATRIX34[3][4];
typedef FLOAT D3DMATRIX33[3][3];
typedef FLOAT D3DMATRIX23[2][3];

static void pshader_m4x4(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, /*WINED3DSHADERVECTOR* mat1*/ D3DMATRIX44 mat) {
    /*
    * Buggy CODE: here only if cast not work for copy/paste
    WINED3DSHADERVECTOR* mat2 = mat1 + 1;
    WINED3DSHADERVECTOR* mat3 = mat1 + 2;
    WINED3DSHADERVECTOR* mat4 = mat1 + 3;
    d->x = mat1->x * s0->x + mat2->x * s0->y + mat3->x * s0->z + mat4->x * s0->w;
    d->y = mat1->y * s0->x + mat2->y * s0->y + mat3->y * s0->z + mat4->y * s0->w;
    d->z = mat1->z * s0->x + mat2->z * s0->y + mat3->z * s0->z + mat4->z * s0->w;
    d->w = mat1->w * s0->x + mat2->w * s0->y + mat3->w * s0->z + mat4->w * s0->w;
    */
    d->x = mat[0][0] * s0->x + mat[0][1] * s0->y + mat[0][2] * s0->z + mat[0][3] * s0->w;
    d->y = mat[1][0] * s0->x + mat[1][1] * s0->y + mat[1][2] * s0->z + mat[1][3] * s0->w;
    d->z = mat[2][0] * s0->x + mat[2][1] * s0->y + mat[2][2] * s0->z + mat[2][3] * s0->w;
    d->w = mat[3][0] * s0->x + mat[3][1] * s0->y + mat[3][2] * s0->z + mat[3][3] * s0->w;
    PSTRACE(("executing m4x4(1): mat=(%f, %f, %f, %f)    s0=(%f)     d=(%f) \n", mat[0][0], mat[0][1], mat[0][2], mat[0][3], s0->x, d->x));
    PSTRACE(("executing m4x4(2): mat=(%f, %f, %f, %f)       (%f)       (%f) \n", mat[1][0], mat[1][1], mat[1][2], mat[1][3], s0->y, d->y));
    PSTRACE(("executing m4x4(3): mat=(%f, %f, %f, %f) X     (%f)  =    (%f) \n", mat[2][0], mat[2][1], mat[2][2], mat[2][3], s0->z, d->z));
    PSTRACE(("executing m4x4(4): mat=(%f, %f, %f, %f)       (%f)       (%f) \n", mat[3][0], mat[3][1], mat[3][2], mat[3][3], s0->w, d->w));
}

static void pshader_m4x3(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, D3DMATRIX34 mat) {
    d->x = mat[0][0] * s0->x + mat[0][1] * s0->y + mat[0][2] * s0->z + mat[0][3] * s0->w;
    d->y = mat[1][0] * s0->x + mat[1][1] * s0->y + mat[1][2] * s0->z + mat[1][3] * s0->w;
    d->z = mat[2][0] * s0->x + mat[2][1] * s0->y + mat[2][2] * s0->z + mat[2][3] * s0->w;
    d->w = 1.0f;
    PSTRACE(("executing m4x3(1): mat=(%f, %f, %f, %f)    s0=(%f)     d=(%f) \n", mat[0][0], mat[0][1], mat[0][2], mat[0][3], s0->x, d->x));
    PSTRACE(("executing m4x3(2): mat=(%f, %f, %f, %f)       (%f)       (%f) \n", mat[1][0], mat[1][1], mat[1][2], mat[1][3], s0->y, d->y));
    PSTRACE(("executing m4x3(3): mat=(%f, %f, %f, %f) X     (%f)  =    (%f) \n", mat[2][0], mat[2][1], mat[2][2], mat[2][3], s0->z, d->z));
    PSTRACE(("executing m4x3(4):                            (%f)       (%f) \n", s0->w, d->w));
}

static void pshader_m3x4(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, D3DMATRIX43 mat) {
    d->x = mat[0][0] * s0->x + mat[0][1] * s0->y + mat[0][2] * s0->z;
    d->y = mat[1][0] * s0->x + mat[1][1] * s0->y + mat[1][2] * s0->z;
    d->z = mat[2][0] * s0->x + mat[2][1] * s0->y + mat[2][2] * s0->z;
    d->w = mat[3][0] * s0->x + mat[3][1] * s0->y + mat[3][2] * s0->z;
    PSTRACE(("executing m3x4(1): mat=(%f, %f, %f)    s0=(%f)     d=(%f) \n", mat[0][0], mat[0][1], mat[0][2], s0->x, d->x));
    PSTRACE(("executing m3x4(2): mat=(%f, %f, %f)       (%f)       (%f) \n", mat[1][0], mat[1][1], mat[1][2], s0->y, d->y));
    PSTRACE(("executing m3x4(3): mat=(%f, %f, %f) X     (%f)  =    (%f) \n", mat[2][0], mat[2][1], mat[2][2], s0->z, d->z));
    PSTRACE(("executing m3x4(4): mat=(%f, %f, %f)       (%f)       (%f) \n", mat[3][0], mat[3][1], mat[3][2], s0->w, d->w));
}

static void pshader_m3x3(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, D3DMATRIX33 mat) {
    d->x = mat[0][0] * s0->x + mat[0][1] * s0->y + mat[0][2] * s0->z;
    d->y = mat[1][0] * s0->x + mat[1][1] * s0->y + mat[1][2] * s0->z;
    d->z = mat[2][0] * s0->x + mat[2][1] * s0->y + mat[2][2] * s0->z;
    d->w = 1.0f;
    PSTRACE(("executing m3x3(1): mat=(%f, %f, %f)    s0=(%f)     d=(%f) \n", mat[0][0], mat[0][1], mat[0][2], s0->x, d->x));
    PSTRACE(("executing m3x3(2): mat=(%f, %f, %f)       (%f)       (%f) \n", mat[1][0], mat[1][1], mat[1][2], s0->y, d->y));
    PSTRACE(("executing m3x3(3): mat=(%f, %f, %f) X     (%f)  =    (%f) \n", mat[2][0], mat[2][1], mat[2][2], s0->z, d->z));
    PSTRACE(("executing m3x3(4):                                       (%f) \n", d->w));
}

static void pshader_m3x2(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, D3DMATRIX23 mat) {
    FIXME("check\n");
    d->x = mat[0][0] * s0->x + mat[0][1] * s0->y + mat[0][2] * s0->z;
    d->y = mat[1][0] * s0->x + mat[1][1] * s0->y + mat[1][2] * s0->z;
    d->z = 0.0f;
    d->w = 1.0f;
}

/**
 * Version 2.0 specific
 */
static void pshader_lrp(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1, WINED3DSHADERVECTOR* s2) {
    d->x = s0->x * (s1->x - s2->x) + s2->x;
    d->y = s0->y * (s1->y - s2->y) + s2->y;
    d->z = s0->z * (s1->z - s2->z) + s2->z;
    d->w = s0->w * (s1->w - s2->w) + s2->w;
}

static void pshader_crs(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    d->x = s0->y * s1->z - s0->z * s1->y;
    d->y = s0->z * s1->x - s0->x * s1->z;
    d->z = s0->x * s1->y - s0->y * s1->x;
    d->w = 0.9f; /* w is undefined, so set it to something safeish */

    PSTRACE(("executing crs: s0=(%f, %f, %f, %f) s1=(%f, %f, %f, %f) => d=(%f, %f, %f, %f)\n",
                s0->x, s0->y, s0->z, s0->w, s1->x, s1->y, s1->z, s1->w, d->x, d->y, d->z, d->w));
}

static void pshader_abs(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    d->x = fabsf(s0->x);
    d->y = fabsf(s0->y);
    d->z = fabsf(s0->z);
    d->w = fabsf(s0->w);
    PSTRACE(("executing abs: s0=(%f, %f, %f, %f)  => d=(%f, %f, %f, %f)\n",
                s0->x, s0->y, s0->z, s0->w, d->x, d->y, d->z, d->w));
}

    /* Stubs */
static void pshader_texcoord(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_texkill(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_tex(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}
static void pshader_texld(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texbem(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texbeml(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texreg2ar(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texreg2gb(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x2pad(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x2tex(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x3tex(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x3pad(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x3diff(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x3spec(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x3vspec(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_cnd(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1, WINED3DSHADERVECTOR* s2) {
    FIXME(" : Stub\n");
}

/* Def is C[n] = {n.nf, n.nf, n.nf, n.nf} */
static void pshader_def(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1, WINED3DSHADERVECTOR* s2, WINED3DSHADERVECTOR* s3) {
    FIXME(" : Stub\n");
}

static void pshader_texreg2rgb(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texdp3tex(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x2depth(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texdp3(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texm3x3(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_texdepth(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_cmp(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1, WINED3DSHADERVECTOR* s2) {
    FIXME(" : Stub\n");
}

static void pshader_bem(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    FIXME(" : Stub\n");
}

static void pshader_call(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_callnz(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_loop(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_ret(void) {
    FIXME(" : Stub\n");
}

static void pshader_endloop(void) {
    FIXME(" : Stub\n");
}

static void pshader_dcl(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_pow(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    FIXME(" : Stub\n");
}

static void pshader_nrm(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_sincos3(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_sincos2(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1, WINED3DSHADERVECTOR* s2) {
     FIXME(" : Stub\n");
}

static void pshader_rep(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_endrep(void) {
    FIXME(" : Stub\n");
}

static void pshader_if(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_ifc(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_else(void) {
    FIXME(" : Stub\n");
}

static void pshader_label(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_endif(void) {
    FIXME(" : Stub\n");
}

static void pshader_break(void) {
    FIXME(" : Stub\n");
}

static void pshader_breakc(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0) {
    FIXME(" : Stub\n");
}

static void pshader_breakp(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_defb(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_defi(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1, WINED3DSHADERVECTOR* s2, WINED3DSHADERVECTOR* s3) {
    FIXME(" : Stub\n");
}

static void pshader_dp2add(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_dsx(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_dsy(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_texldd(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

static void pshader_setp(WINED3DSHADERVECTOR* d, WINED3DSHADERVECTOR* s0, WINED3DSHADERVECTOR* s1) {
    FIXME(" : Stub\n");
}

static void pshader_texldl(WINED3DSHADERVECTOR* d) {
    FIXME(" : Stub\n");
}

/* Prototype */
static void pshader_hw_cnd(SHADER_OPCODE_ARG* arg);
static void pshader_hw_cmp(SHADER_OPCODE_ARG* arg);
static void pshader_hw_map2gl(SHADER_OPCODE_ARG* arg);
static void pshader_hw_tex(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texcoord(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texreg2ar(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texreg2gb(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texbem(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texm3x2pad(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texm3x2tex(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texm3x3pad(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texm3x3tex(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texm3x3spec(SHADER_OPCODE_ARG* arg);
static void pshader_hw_texm3x3vspec(SHADER_OPCODE_ARG* arg);

/**
 * log, exp, frc, m*x* seems to be macros ins ... to see
 */
CONST SHADER_OPCODE IWineD3DPixelShaderImpl_shader_ins[] = {

    /* Arithmethic */
    {D3DSIO_NOP,  "nop", "NOP", 0, pshader_nop, pshader_hw_map2gl, NULL, 0, 0},
    {D3DSIO_MOV,  "mov", "MOV", 2, pshader_mov, pshader_hw_map2gl, shader_glsl_mov, 0, 0},
    {D3DSIO_ADD,  "add", "ADD", 3, pshader_add, pshader_hw_map2gl, shader_glsl_arith, 0, 0},
    {D3DSIO_SUB,  "sub", "SUB", 3, pshader_sub, pshader_hw_map2gl, shader_glsl_arith, 0, 0},
    {D3DSIO_MAD,  "mad", "MAD", 4, pshader_mad, pshader_hw_map2gl, shader_glsl_mad, 0, 0},
    {D3DSIO_MUL,  "mul", "MUL", 3, pshader_mul, pshader_hw_map2gl, shader_glsl_arith, 0, 0},
    {D3DSIO_RCP,  "rcp", "RCP",  2, pshader_rcp, pshader_hw_map2gl, shader_glsl_rcp, 0, 0},
    {D3DSIO_RSQ,  "rsq",  "RSQ", 2, pshader_rsq, pshader_hw_map2gl, shader_glsl_map2gl, 0, 0},
    {D3DSIO_DP3,  "dp3",  "DP3", 3, pshader_dp3, pshader_hw_map2gl, shader_glsl_dot, 0, 0},
    {D3DSIO_DP4,  "dp4",  "DP4", 3, pshader_dp4, pshader_hw_map2gl, shader_glsl_dot, 0, 0},
    {D3DSIO_MIN,  "min",  "MIN", 3, pshader_min, pshader_hw_map2gl, shader_glsl_map2gl, 0, 0},
    {D3DSIO_MAX,  "max",  "MAX", 3, pshader_max, pshader_hw_map2gl, shader_glsl_map2gl, 0, 0},
    {D3DSIO_SLT,  "slt",  "SLT", 3, pshader_slt, pshader_hw_map2gl, shader_glsl_compare, 0, 0},
    {D3DSIO_SGE,  "sge",  "SGE", 3, pshader_sge, pshader_hw_map2gl, shader_glsl_compare, 0, 0},
    {D3DSIO_ABS,  "abs",  "ABS", 2, pshader_abs, pshader_hw_map2gl, shader_glsl_map2gl, 0, 0},
    {D3DSIO_EXP,  "exp",  "EX2", 2, pshader_exp, pshader_hw_map2gl, shader_glsl_map2gl, 0, 0},
    {D3DSIO_LOG,  "log",  "LG2", 2, pshader_log, pshader_hw_map2gl, shader_glsl_map2gl, 0, 0},
    {D3DSIO_EXPP, "expp", "EXP", 2, pshader_expp, pshader_hw_map2gl, shader_glsl_map2gl, 0, 0},
    {D3DSIO_LOGP, "logp", "LOG", 2, pshader_logp, pshader_hw_map2gl, NULL, 0, 0},
    {D3DSIO_DST,  "dst",  "DST", 3, pshader_dst, pshader_hw_map2gl, NULL, 0, 0},
    {D3DSIO_LRP,  "lrp",  "LRP", 4, pshader_lrp, pshader_hw_map2gl, shader_glsl_lrp, 0, 0},
    {D3DSIO_FRC,  "frc",  "FRC", 2, pshader_frc, pshader_hw_map2gl, shader_glsl_map2gl, 0, 0},
    {D3DSIO_CND,  "cnd",  NULL, 4, pshader_cnd, pshader_hw_cnd, shader_glsl_cnd, D3DPS_VERSION(1,1), D3DPS_VERSION(1,4)},
    {D3DSIO_CMP,  "cmp",  NULL, 4, pshader_cmp, pshader_hw_cmp, shader_glsl_cmp, D3DPS_VERSION(1,2), D3DPS_VERSION(3,0)},
    {D3DSIO_POW,  "pow",  "POW", 3, pshader_pow,  NULL, shader_glsl_map2gl, 0, 0},
    {D3DSIO_CRS,  "crs",  "XPS", 3, pshader_crs,  NULL, shader_glsl_map2gl, 0, 0},
    /* TODO: xyz normalise can be performed as VS_ARB using one temporary register,
        DP3 tmp , vec, vec;
        RSQ tmp, tmp.x;
        MUL vec.xyz, vec, tmp;
    but I think this is better because it accounts for w properly.
        DP3 tmp , vec, vec;
        RSQ tmp, tmp.x;
        MUL vec, vec, tmp;

    */
    {D3DSIO_NRM,      "nrm",      NULL,   2, pshader_nrm,     NULL, shader_glsl_map2gl, 0, 0},
    {D3DSIO_SINCOS,   "sincos",   NULL,   4, pshader_sincos2, NULL, NULL, D3DPS_VERSION(2,0), D3DPS_VERSION(2,0)},
    {D3DSIO_SINCOS,   "sincos",   NULL,   2, pshader_sincos3, NULL, NULL, D3DPS_VERSION(3,0), -1},
    /* TODO: dp2add can be made out of multiple instuctions */
    {D3DSIO_DP2ADD,   "dp2add",   GLNAME_REQUIRE_GLSL,  2, pshader_dp2add,  NULL, NULL, 0, 0},

    /* Matrix */
    {D3DSIO_M4x4, "m4x4", "undefined", 3, pshader_m4x4, NULL, shader_glsl_mnxn, 0, 0},
    {D3DSIO_M4x3, "m4x3", "undefined", 3, pshader_m4x3, NULL, shader_glsl_mnxn, 0, 0},
    {D3DSIO_M3x4, "m3x4", "undefined", 3, pshader_m3x4, NULL, shader_glsl_mnxn, 0, 0},
    {D3DSIO_M3x3, "m3x3", "undefined", 3, pshader_m3x3, NULL, shader_glsl_mnxn, 0, 0},
    {D3DSIO_M3x2, "m3x2", "undefined", 3, pshader_m3x2, NULL, shader_glsl_mnxn, 0, 0},

    /* Register declarations */
    {D3DSIO_DCL,      "dcl",      NULL,   2, pshader_dcl,     NULL, NULL, 0, 0},

    /* Flow control - requires GLSL or software shaders */
    {D3DSIO_REP ,     "rep",      GLNAME_REQUIRE_GLSL,   1, pshader_rep,     NULL, NULL, 0, 0},
    {D3DSIO_ENDREP,   "endrep",   GLNAME_REQUIRE_GLSL,   0, pshader_endrep,  NULL, NULL, 0, 0},
    {D3DSIO_IF,       "if",       GLNAME_REQUIRE_GLSL,   1, pshader_if,      NULL, NULL, 0, 0},
    {D3DSIO_IFC,      "ifc",      GLNAME_REQUIRE_GLSL,   2, pshader_ifc,     NULL, NULL, 0, 0},
    {D3DSIO_ELSE,     "else",     GLNAME_REQUIRE_GLSL,   0, pshader_else,    NULL, NULL, 0, 0},
    {D3DSIO_ENDIF,    "endif",    GLNAME_REQUIRE_GLSL,   0, pshader_endif,   NULL, NULL, 0, 0},
    {D3DSIO_BREAK,    "break",    GLNAME_REQUIRE_GLSL,   0, pshader_break,   NULL, NULL, 0, 0},
    {D3DSIO_BREAKC,   "breakc",   GLNAME_REQUIRE_GLSL,   2, pshader_breakc,  NULL, NULL, 0, 0},
    {D3DSIO_BREAKP,   "breakp",   GLNAME_REQUIRE_GLSL,   1, pshader_breakp,  NULL, NULL, 0, 0},
    {D3DSIO_CALL,     "call",     GLNAME_REQUIRE_GLSL,   1, pshader_call,    NULL, NULL, 0, 0},
    {D3DSIO_CALLNZ,   "callnz",   GLNAME_REQUIRE_GLSL,   2, pshader_callnz,  NULL, NULL, 0, 0},
    {D3DSIO_LOOP,     "loop",     GLNAME_REQUIRE_GLSL,   2, pshader_loop,    NULL, NULL, 0, 0},
    {D3DSIO_RET,      "ret",      GLNAME_REQUIRE_GLSL,   0, pshader_ret,     NULL, NULL, 0, 0},
    {D3DSIO_ENDLOOP,  "endloop",  GLNAME_REQUIRE_GLSL,   0, pshader_endloop, NULL, NULL, 0, 0},
    {D3DSIO_LABEL,    "label",    GLNAME_REQUIRE_GLSL,   1, pshader_label,   NULL, NULL, 0, 0},

    /* Constant definitions */
    {D3DSIO_DEF,      "def",      "undefined",           5, pshader_def,     shader_hw_def, shader_glsl_def, 0, 0},
    {D3DSIO_DEFB,     "defb",     GLNAME_REQUIRE_GLSL,   2, pshader_defb,    NULL, NULL, 0, 0},
    {D3DSIO_DEFI,     "defi",     GLNAME_REQUIRE_GLSL,   5, pshader_defi,    NULL, NULL, 0, 0},

    /* Texture */
    {D3DSIO_TEXCOORD, "texcoord", "undefined",   1, pshader_texcoord,    pshader_hw_texcoord, pshader_glsl_texcoord, 0, D3DPS_VERSION(1,3)},
    {D3DSIO_TEXCOORD, "texcrd",   "undefined",   2, pshader_texcoord,    pshader_hw_texcoord, pshader_glsl_texcoord, D3DPS_VERSION(1,4), D3DPS_VERSION(1,4)},
    {D3DSIO_TEXKILL,  "texkill",  "KIL",         1, pshader_texkill,     pshader_hw_map2gl, NULL, D3DPS_VERSION(1,0), D3DPS_VERSION(3,0)},
    {D3DSIO_TEX,      "tex",      "undefined",   1, pshader_tex,         pshader_hw_tex, pshader_glsl_tex, 0, D3DPS_VERSION(1,3)},
    {D3DSIO_TEX,      "texld",    "undefined",   2, pshader_texld,       pshader_hw_tex, pshader_glsl_tex, D3DPS_VERSION(1,4), D3DPS_VERSION(1,4)},
    {D3DSIO_TEX,      "texld",    "undefined",   3, pshader_texld,       pshader_hw_tex, pshader_glsl_tex, D3DPS_VERSION(2,0), -1},
    {D3DSIO_TEXBEM,   "texbem",   "undefined",   2, pshader_texbem,      pshader_hw_texbem, NULL, 0, D3DPS_VERSION(1,3)},
    {D3DSIO_TEXBEML,  "texbeml",  GLNAME_REQUIRE_GLSL,   2, pshader_texbeml, NULL, NULL, D3DPS_VERSION(1,0), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXREG2AR,"texreg2ar","undefined",   2, pshader_texreg2ar,   pshader_hw_texreg2ar, NULL, D3DPS_VERSION(1,1), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXREG2GB,"texreg2gb","undefined",   2, pshader_texreg2gb,   pshader_hw_texreg2gb, NULL, D3DPS_VERSION(1,1), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXREG2RGB,   "texreg2rgb",   GLNAME_REQUIRE_GLSL,   2, pshader_texreg2rgb,  NULL, NULL, D3DPS_VERSION(1,2), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXM3x2PAD,   "texm3x2pad",   "undefined",   2, pshader_texm3x2pad,   pshader_hw_texm3x2pad, pshader_glsl_texm3x2pad, D3DPS_VERSION(1,0), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXM3x2TEX,   "texm3x2tex",   "undefined",   2, pshader_texm3x2tex,   pshader_hw_texm3x2tex, pshader_glsl_texm3x2tex, D3DPS_VERSION(1,0), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXM3x3PAD,   "texm3x3pad",   "undefined",   2, pshader_texm3x3pad,   pshader_hw_texm3x3pad, NULL, D3DPS_VERSION(1,0), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXM3x3DIFF,  "texm3x3diff",  GLNAME_REQUIRE_GLSL,   2, pshader_texm3x3diff,  NULL, NULL, D3DPS_VERSION(0,0), D3DPS_VERSION(0,0)},
    {D3DSIO_TEXM3x3SPEC,  "texm3x3spec",  "undefined",   3, pshader_texm3x3spec,  pshader_hw_texm3x3spec, NULL, D3DPS_VERSION(1,0), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXM3x3VSPEC, "texm3x3vspe",  "undefined",   2, pshader_texm3x3vspec, pshader_hw_texm3x3vspec, NULL, D3DPS_VERSION(1,0), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXM3x3TEX,   "texm3x3tex",   "undefined",   2, pshader_texm3x3tex,   pshader_hw_texm3x3tex, NULL, D3DPS_VERSION(1,0), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXDP3TEX,    "texdp3tex",    GLNAME_REQUIRE_GLSL,   2, pshader_texdp3tex,   NULL, NULL, D3DPS_VERSION(1,2), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXM3x2DEPTH, "texm3x2depth", GLNAME_REQUIRE_GLSL,   2, pshader_texm3x2depth, NULL, NULL, D3DPS_VERSION(1,3), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXDP3,   "texdp3",   GLNAME_REQUIRE_GLSL,  2, pshader_texdp3,   NULL, NULL, D3DPS_VERSION(1,2), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXM3x3,  "texm3x3",  GLNAME_REQUIRE_GLSL,  2, pshader_texm3x3,  NULL, NULL, D3DPS_VERSION(1,2), D3DPS_VERSION(1,3)},
    {D3DSIO_TEXDEPTH, "texdepth", GLNAME_REQUIRE_GLSL,  1, pshader_texdepth, NULL, NULL, D3DPS_VERSION(1,4), D3DPS_VERSION(1,4)},
    {D3DSIO_BEM,      "bem",      GLNAME_REQUIRE_GLSL,  3, pshader_bem,      NULL, NULL, D3DPS_VERSION(1,4), D3DPS_VERSION(1,4)},
    /* TODO: dp2add can be made out of multiple instuctions */
    {D3DSIO_DSX,      "dsx",      GLNAME_REQUIRE_GLSL,  2, pshader_dsx,     NULL, NULL, 0, 0},
    {D3DSIO_DSY,      "dsy",      GLNAME_REQUIRE_GLSL,  2, pshader_dsy,     NULL, NULL, 0, 0},
    {D3DSIO_TEXLDD,   "texldd",   GLNAME_REQUIRE_GLSL,  2, pshader_texldd,  NULL, NULL, 0, 0},
    {D3DSIO_SETP,     "setp",     GLNAME_REQUIRE_GLSL,  3, pshader_setp,    NULL, NULL, 0, 0},
    {D3DSIO_TEXLDL,   "texdl",    GLNAME_REQUIRE_GLSL,  2, pshader_texldl,  NULL, NULL, 0, 0},
    {D3DSIO_PHASE,    "phase",    GLNAME_REQUIRE_GLSL,  0, pshader_nop,     NULL, NULL, 0, 0},
    {0,               NULL,       NULL,   0, NULL,            NULL, 0, 0}
};

inline static void get_register_name(const DWORD param, char* regstr, CHAR *constants) {

    DWORD reg = param & D3DSP_REGNUM_MASK;
    DWORD regtype = shader_get_regtype(param);

    switch (regtype) {
    case D3DSPR_TEMP:
        sprintf(regstr, "R%lu", reg);
    break;
    case D3DSPR_INPUT:
        if (reg==0) {
            strcpy(regstr, "fragment.color.primary");
        } else {
            strcpy(regstr, "fragment.color.secondary");
        }
    break;
    case D3DSPR_CONST:
        if (constants[reg])
            sprintf(regstr, "C%lu", reg);
        else
            sprintf(regstr, "C[%lu]", reg);
    break;
    case D3DSPR_TEXTURE: /* case D3DSPR_ADDR: */
        sprintf(regstr,"T%lu", reg);
    break;
    case D3DSPR_COLOROUT:
        if (reg == 0)
            sprintf(regstr, "result.color");
        else {
            /* TODO: See GL_ARB_draw_buffers */
            FIXME("Unsupported write to render target %lu\n", reg);
            sprintf(regstr, "unsupported_register");
        }
    break;
    case D3DSPR_DEPTHOUT:
        sprintf(regstr, "result.depth");
    break;
    case D3DSPR_ATTROUT:
        sprintf(regstr, "oD[%lu]", reg);
    break;
    case D3DSPR_TEXCRDOUT:
        sprintf(regstr, "oT[%lu]", reg);
    break;
    default:
        FIXME("Unhandled register name Type(%ld)\n", regtype);
        sprintf(regstr, "unrecognized_register");
    break;
    }
}

inline static void get_write_mask(const DWORD output_reg, char *write_mask) {
    *write_mask = 0;
    if ((output_reg & D3DSP_WRITEMASK_ALL) != D3DSP_WRITEMASK_ALL) {
        strcat(write_mask, ".");
        if (output_reg & D3DSP_WRITEMASK_0) strcat(write_mask, "r");
        if (output_reg & D3DSP_WRITEMASK_1) strcat(write_mask, "g");
        if (output_reg & D3DSP_WRITEMASK_2) strcat(write_mask, "b");
        if (output_reg & D3DSP_WRITEMASK_3) strcat(write_mask, "a");
    }
}

static void pshader_get_input_register_swizzle(const DWORD instr, char *swzstring) {
    static const char swizzle_reg_chars[] = "rgba";
    DWORD swizzle = (instr & D3DSP_SWIZZLE_MASK) >> D3DSP_SWIZZLE_SHIFT;
    DWORD swizzle_x = swizzle & 0x03;
    DWORD swizzle_y = (swizzle >> 2) & 0x03;
    DWORD swizzle_z = (swizzle >> 4) & 0x03;
    DWORD swizzle_w = (swizzle >> 6) & 0x03;
    /**
     * swizzle bits fields:
     *  WWZZYYXX
     */
    *swzstring = 0;
    if ((D3DSP_NOSWIZZLE >> D3DSP_SWIZZLE_SHIFT) != swizzle) { /* ! D3DVS_NOSWIZZLE == 0xE4 << D3DVS_SWIZZLE_SHIFT */
        if (swizzle_x == swizzle_y && 
        swizzle_x == swizzle_z && 
        swizzle_x == swizzle_w) {
            sprintf(swzstring, ".%c", swizzle_reg_chars[swizzle_x]);
        } else {
            sprintf(swzstring, ".%c%c%c%c", 
                swizzle_reg_chars[swizzle_x], 
                swizzle_reg_chars[swizzle_y], 
                swizzle_reg_chars[swizzle_z], 
                swizzle_reg_chars[swizzle_w]);
        }
    }
}

static const char* shift_tab[] = {
    "dummy",     /*  0 (none) */ 
    "coefmul.x", /*  1 (x2)   */ 
    "coefmul.y", /*  2 (x4)   */ 
    "coefmul.z", /*  3 (x8)   */ 
    "coefmul.w", /*  4 (x16)  */ 
    "dummy",     /*  5 (x32)  */ 
    "dummy",     /*  6 (x64)  */ 
    "dummy",     /*  7 (x128) */ 
    "dummy",     /*  8 (d256) */ 
    "dummy",     /*  9 (d128) */ 
    "dummy",     /* 10 (d64)  */ 
    "dummy",     /* 11 (d32)  */ 
    "coefdiv.w", /* 12 (d16)  */ 
    "coefdiv.z", /* 13 (d8)   */ 
    "coefdiv.y", /* 14 (d4)   */ 
    "coefdiv.x"  /* 15 (d2)   */ 
};

inline static void pshader_gen_output_modifier_line(
    SHADER_BUFFER* buffer,
    int saturate,
    char *write_mask,
    int shift,
    char *regstr) {

    /* Generate a line that does the output modifier computation */
    shader_addline(buffer, "MUL%s %s%s, %s, %s;\n", saturate ? "_SAT" : "",
        regstr, write_mask, regstr, shift_tab[shift]);
}

static void pshader_gen_input_modifier_line (
    SHADER_BUFFER* buffer,
    const DWORD instr,
    int tmpreg,
    char *outregstr,
    CHAR *constants) {

    /* Generate a line that does the input modifier computation and return the input register to use */
    char regstr[256];
    char swzstr[20];
    int insert_line;

    /* Assume a new line will be added */
    insert_line = 1;

    /* Get register name */
    get_register_name(instr, regstr, constants);
    pshader_get_input_register_swizzle(instr, swzstr);

    switch (instr & D3DSP_SRCMOD_MASK) {
    case D3DSPSM_NONE:
        sprintf(outregstr, "%s%s", regstr, swzstr);
        insert_line = 0;
        break;
    case D3DSPSM_NEG:
        sprintf(outregstr, "-%s%s", regstr, swzstr);
        insert_line = 0;
        break;
    case D3DSPSM_BIAS:
        shader_addline(buffer, "ADD T%c, %s, -coefdiv.x;\n", 'A' + tmpreg, regstr);
        break;
    case D3DSPSM_BIASNEG:
        shader_addline(buffer, "ADD T%c, -%s, coefdiv.x;\n", 'A' + tmpreg, regstr);
        break;
    case D3DSPSM_SIGN:
        shader_addline(buffer, "MAD T%c, %s, coefmul.x, -one.x;\n", 'A' + tmpreg, regstr);
        break;
    case D3DSPSM_SIGNNEG:
        shader_addline(buffer, "MAD T%c, %s, -coefmul.x, one.x;\n", 'A' + tmpreg, regstr);
        break;
    case D3DSPSM_COMP:
        shader_addline(buffer, "SUB T%c, one.x, %s;\n", 'A' + tmpreg, regstr);
        break;
    case D3DSPSM_X2:
        shader_addline(buffer, "ADD T%c, %s, %s;\n", 'A' + tmpreg, regstr, regstr);
        break;
    case D3DSPSM_X2NEG:
        shader_addline(buffer, "ADD T%c, -%s, -%s;\n", 'A' + tmpreg, regstr, regstr);
        break;
    case D3DSPSM_DZ:
        shader_addline(buffer, "RCP T%c, %s.z;\n", 'A' + tmpreg, regstr);
        shader_addline(buffer, "MUL T%c, %s, T%c;\n", 'A' + tmpreg, regstr, 'A' + tmpreg);
        break;
    case D3DSPSM_DW:
        shader_addline(buffer, "RCP T%c, %s.w;\n", 'A' + tmpreg, regstr);
        shader_addline(buffer, "MUL T%c, %s, T%c;\n", 'A' + tmpreg, regstr, 'A' + tmpreg);
        break;
    default:
        sprintf(outregstr, "%s%s", regstr, swzstr);
        insert_line = 0;
    }

    /* Return modified or original register, with swizzle */
    if (insert_line)
        sprintf(outregstr, "T%c%s", 'A' + tmpreg, swzstr);
}

static void pshader_set_limits(
      IWineD3DPixelShaderImpl *This) { 

      This->baseShader.limits.attributes = 0;
      This->baseShader.limits.address = 0;

      switch (This->baseShader.hex_version) {
          case D3DPS_VERSION(1,0):
          case D3DPS_VERSION(1,1):
          case D3DPS_VERSION(1,2):
          case D3DPS_VERSION(1,3): 
                   This->baseShader.limits.temporary = 2;
                   This->baseShader.limits.constant_float = 8;
                   This->baseShader.limits.constant_int = 0;
                   This->baseShader.limits.constant_bool = 0;
                   This->baseShader.limits.texture = 4;
                   break;

          case D3DPS_VERSION(1,4):
                   This->baseShader.limits.temporary = 6;
                   This->baseShader.limits.constant_float = 8;
                   This->baseShader.limits.constant_int = 0;
                   This->baseShader.limits.constant_bool = 0;
                   This->baseShader.limits.texture = 6;
                   break;
               
          /* FIXME: temporaries must match D3DPSHADERCAPS2_0.NumTemps */ 
          case D3DPS_VERSION(2,0):
          case D3DPS_VERSION(2,1):
                   This->baseShader.limits.temporary = 32;
                   This->baseShader.limits.constant_float = 32;
                   This->baseShader.limits.constant_int = 16;
                   This->baseShader.limits.constant_bool = 16;
                   This->baseShader.limits.texture = 8;
                   break;

          case D3DPS_VERSION(3,0):
                   This->baseShader.limits.temporary = 32;
                   This->baseShader.limits.constant_float = 224;
                   This->baseShader.limits.constant_int = 16;
                   This->baseShader.limits.constant_bool = 16;
                   This->baseShader.limits.texture = 0;
                   break;

          default: This->baseShader.limits.temporary = 32;
                   This->baseShader.limits.constant_float = 8;
                   This->baseShader.limits.constant_int = 0;
                   This->baseShader.limits.constant_bool = 0;
                   This->baseShader.limits.texture = 8;
                   FIXME("Unrecognized pixel shader version %#lx\n", 
                       This->baseShader.hex_version);
      }
}

static void pshader_hw_cnd(SHADER_OPCODE_ARG* arg) {

    SHADER_BUFFER* buffer = arg->buffer;
    char dst_wmask[20];
    char dst_name[50];
    char src_name[3][50];

    /* FIXME: support output modifiers */

    /* Handle output register */
    get_register_name(arg->dst, dst_name, arg->reg_maps->constantsF);
    get_write_mask(arg->dst, dst_wmask);
    strcat(dst_name, dst_wmask);

    /* Generate input register names (with modifiers) */
    pshader_gen_input_modifier_line(buffer, arg->src[0], 0, src_name[0], arg->reg_maps->constantsF);
    pshader_gen_input_modifier_line(buffer, arg->src[1], 1, src_name[1], arg->reg_maps->constantsF);
    pshader_gen_input_modifier_line(buffer, arg->src[2], 2, src_name[2], arg->reg_maps->constantsF);
    
    shader_addline(buffer, "ADD TMP, -%s, coefdiv.x;\n", src_name[0]);
    shader_addline(buffer, "CMP %s, TMP, %s, %s;\n", dst_name, src_name[1], src_name[2]);
}

static void pshader_hw_cmp(SHADER_OPCODE_ARG* arg) {

    SHADER_BUFFER* buffer = arg->buffer;
    char dst_wmask[20];
    char dst_name[50];
    char src_name[3][50];

    /* FIXME: support output modifiers */

    /* Handle output register */
    get_register_name(arg->dst, dst_name, arg->reg_maps->constantsF);
    get_write_mask(arg->dst, dst_wmask);
    strcat(dst_name, dst_wmask);

    /* Generate input register names (with modifiers) */
    pshader_gen_input_modifier_line(buffer, arg->src[0], 0, src_name[0], arg->reg_maps->constantsF);
    pshader_gen_input_modifier_line(buffer, arg->src[1], 1, src_name[1], arg->reg_maps->constantsF);
    pshader_gen_input_modifier_line(buffer, arg->src[2], 2, src_name[2], arg->reg_maps->constantsF);

    shader_addline(buffer, "CMP %s, %s, %s, %s;\n", dst_name, 
        src_name[0], src_name[2], src_name[1]);
}

/* Map the opcode 1-to-1 to the GL code */
static void pshader_hw_map2gl(SHADER_OPCODE_ARG* arg) {

     CONST SHADER_OPCODE* curOpcode = arg->opcode;
     SHADER_BUFFER* buffer = arg->buffer;
     DWORD dst = arg->dst;
     DWORD* src = arg->src;

     unsigned int i;
     char tmpLine[256];

     /* Output token related */
     char output_rname[256];
     char output_wmask[20];
     BOOL saturate = FALSE;
     BOOL centroid = FALSE;
     BOOL partialprecision = FALSE;
     DWORD shift;

     strcpy(tmpLine, curOpcode->glname);

     /* Process modifiers */
     if (0 != (dst & D3DSP_DSTMOD_MASK)) {
         DWORD mask = dst & D3DSP_DSTMOD_MASK;

         saturate = mask & D3DSPDM_SATURATE;
         centroid = mask & D3DSPDM_MSAMPCENTROID;
         partialprecision = mask & D3DSPDM_PARTIALPRECISION;
         mask &= ~(D3DSPDM_MSAMPCENTROID | D3DSPDM_PARTIALPRECISION | D3DSPDM_SATURATE);

         if (mask)
            FIXME("Unrecognized modifier(0x%#lx)\n", mask >> D3DSP_DSTMOD_SHIFT);

         if (centroid)
             FIXME("Unhandled modifier(0x%#lx)\n", mask >> D3DSP_DSTMOD_SHIFT);
     }
     shift = (dst & D3DSP_DSTSHIFT_MASK) >> D3DSP_DSTSHIFT_SHIFT;

      /* Generate input and output registers */
      if (curOpcode->num_params > 0) {
          char operands[4][100];

          /* Generate input register names (with modifiers) */
          for (i = 1; i < curOpcode->num_params; ++i)
              pshader_gen_input_modifier_line(buffer, src[i-1], i-1, operands[i], arg->reg_maps->constantsF);

          /* Handle output register */
          get_register_name(dst, output_rname, arg->reg_maps->constantsF);
          strcpy(operands[0], output_rname);
          get_write_mask(dst, output_wmask);
          strcat(operands[0], output_wmask);

          if (saturate && (shift == 0))
             strcat(tmpLine, "_SAT");
          strcat(tmpLine, " ");
          strcat(tmpLine, operands[0]);
          for (i = 1; i < curOpcode->num_params; i++) {
              strcat(tmpLine, ", ");
              strcat(tmpLine, operands[i]);
          }
          strcat(tmpLine,";\n");
          shader_addline(buffer, tmpLine);

          /* A shift requires another line. */
          if (shift != 0)
              pshader_gen_output_modifier_line(buffer, saturate, output_wmask, shift, output_rname);
      }
}

static void pshader_hw_tex(SHADER_OPCODE_ARG* arg) {

    IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
    DWORD dst = arg->dst;
    DWORD* src = arg->src;
    SHADER_BUFFER* buffer = arg->buffer;
    DWORD hex_version = This->baseShader.hex_version;
   
    char reg_dest[40];
    char reg_coord[40];
    DWORD reg_dest_code;
    DWORD reg_sampler_code;

    /* All versions have a destination register */
    reg_dest_code = dst & D3DSP_REGNUM_MASK;
    get_register_name(dst, reg_dest, arg->reg_maps->constantsF);

    /* 1.0-1.3: Use destination register as coordinate source.
       2.0+: Use provided coordinate source register. */
   if (hex_version < D3DPS_VERSION(1,4))
      strcpy(reg_coord, reg_dest);
   else
      pshader_gen_input_modifier_line(buffer, src[0], 0, reg_coord, arg->reg_maps->constantsF);

  /* 1.0-1.4: Use destination register number as texture code.
     2.0+: Use provided sampler number as texure code. */
  if (hex_version < D3DPS_VERSION(2,0))
     reg_sampler_code = reg_dest_code;
  else 
     reg_sampler_code = src[1] & D3DSP_REGNUM_MASK;

  shader_addline(buffer, "TEX %s, %s, texture[%lu], 2D;\n",
      reg_dest, reg_coord, reg_sampler_code);
}

static void pshader_hw_texcoord(SHADER_OPCODE_ARG* arg) {

    IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
    DWORD dst = arg->dst;
    DWORD* src = arg->src;
    SHADER_BUFFER* buffer = arg->buffer;
    DWORD hex_version = This->baseShader.hex_version;

    char tmp[20];
    get_write_mask(dst, tmp);
    if (hex_version != D3DPS_VERSION(1,4)) {
        DWORD reg = dst & D3DSP_REGNUM_MASK;
        shader_addline(buffer, "MOV T%lu%s, fragment.texcoord[%lu];\n", reg, tmp, reg);
    } else {
        DWORD reg1 = dst & D3DSP_REGNUM_MASK;
        DWORD reg2 = src[0] & D3DSP_REGNUM_MASK;
        shader_addline(buffer, "MOV R%lu%s, fragment.texcoord[%lu];\n", reg1, tmp, reg2);
   }
}

static void pshader_hw_texreg2ar(SHADER_OPCODE_ARG* arg) {

     SHADER_BUFFER* buffer = arg->buffer;
 
     DWORD reg1 = arg->dst & D3DSP_REGNUM_MASK;
     DWORD reg2 = arg->src[0] & D3DSP_REGNUM_MASK;
     shader_addline(buffer, "MOV TMP.r, T%lu.a;\n", reg2);
     shader_addline(buffer, "MOV TMP.g, T%lu.r;\n", reg2);
     shader_addline(buffer, "TEX T%lu, TMP, texture[%lu], 2D;\n", reg1, reg1);
}

static void pshader_hw_texreg2gb(SHADER_OPCODE_ARG* arg) {
 
     SHADER_BUFFER* buffer = arg->buffer;
    
     DWORD reg1 = arg->dst & D3DSP_REGNUM_MASK;
     DWORD reg2 = arg->src[0] & D3DSP_REGNUM_MASK;
     shader_addline(buffer, "MOV TMP.r, T%lu.g;\n", reg2);
     shader_addline(buffer, "MOV TMP.g, T%lu.b;\n", reg2);
     shader_addline(buffer, "TEX T%lu, TMP, texture[%lu], 2D;\n", reg1, reg1);
}

static void pshader_hw_texbem(SHADER_OPCODE_ARG* arg) {

     SHADER_BUFFER* buffer = arg->buffer;
 
     DWORD reg1 = arg->dst  & D3DSP_REGNUM_MASK;
     DWORD reg2 = arg->src[0] & D3DSP_REGNUM_MASK;

     /* FIXME: Should apply the BUMPMAPENV matrix */
     shader_addline(buffer, "ADD TMP.rg, fragment.texcoord[%lu], T%lu;\n", reg1, reg2);
     shader_addline(buffer, "TEX T%lu, TMP, texture[%lu], 2D;\n", reg1, reg1);
}

static void pshader_hw_texm3x2pad(SHADER_OPCODE_ARG* arg) {

    DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
    SHADER_BUFFER* buffer = arg->buffer;
    char src0_name[50];

    pshader_gen_input_modifier_line(buffer, arg->src[0], 0, src0_name, arg->reg_maps->constantsF);
    shader_addline(buffer, "DP3 TMP.x, T%lu, %s;\n", reg, src0_name);
}

static void pshader_hw_texm3x2tex(SHADER_OPCODE_ARG* arg) {

    DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
    SHADER_BUFFER* buffer = arg->buffer;
    char src0_name[50];

    pshader_gen_input_modifier_line(buffer, arg->src[0], 0, src0_name, arg->reg_maps->constantsF);
    shader_addline(buffer, "DP3 TMP.y, T%lu, %s;\n", reg, src0_name);
    shader_addline(buffer, "TEX T%lu, TMP, texture[%lu], 2D;\n", reg, reg);
}

static void pshader_hw_texm3x3pad(SHADER_OPCODE_ARG* arg) {

    IWineD3DPixelShaderImpl* shader = (IWineD3DPixelShaderImpl*) arg->shader;
    DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
    SHADER_BUFFER* buffer = arg->buffer;
    SHADER_PARSE_STATE current_state = shader->baseShader.parse_state;
    char src0_name[50];

    pshader_gen_input_modifier_line(buffer, arg->src[0], 0, src0_name, arg->reg_maps->constantsF);
    shader_addline(buffer, "DP3 TMP.%c, T%lu, %s;\n", 'x' + current_state.current_row, reg, src0_name);
    current_state.texcoord_w[current_state.current_row++] = reg;
}

static void pshader_hw_texm3x3tex(SHADER_OPCODE_ARG* arg) {

    IWineD3DPixelShaderImpl* shader = (IWineD3DPixelShaderImpl*) arg->shader;
    DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
    SHADER_BUFFER* buffer = arg->buffer;
    SHADER_PARSE_STATE current_state = shader->baseShader.parse_state;
    char src0_name[50];

    pshader_gen_input_modifier_line(buffer, arg->src[0], 0, src0_name, arg->reg_maps->constantsF);
    shader_addline(buffer, "DP3 TMP.z, T%lu, %s;\n", reg, src0_name);

    /* Cubemap textures will be more used than 3D ones. */
    shader_addline(buffer, "TEX T%lu, TMP, texture[%lu], CUBE;\n", reg, reg);
    current_state.current_row = 0;
}

static void pshader_hw_texm3x3vspec(SHADER_OPCODE_ARG* arg) {

    IWineD3DPixelShaderImpl* shader = (IWineD3DPixelShaderImpl*) arg->shader;
    DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
    SHADER_BUFFER* buffer = arg->buffer;
    SHADER_PARSE_STATE current_state = shader->baseShader.parse_state;
    char src0_name[50];

    pshader_gen_input_modifier_line(buffer, arg->src[0], 0, src0_name, arg->reg_maps->constantsF);
    shader_addline(buffer, "DP3 TMP.z, T%lu, %s;\n", reg, src0_name);

    /* Construct the eye-ray vector from w coordinates */
    shader_addline(buffer, "MOV TMP2.x, fragment.texcoord[%lu].w;\n", current_state.texcoord_w[0]);
    shader_addline(buffer, "MOV TMP2.y, fragment.texcoord[%lu].w;\n", current_state.texcoord_w[1]);
    shader_addline(buffer, "MOV TMP2.z, fragment.texcoord[%lu].w;\n", reg);

    /* Calculate reflection vector (Assume normal is normalized): RF = 2*(N.E)*N -E */
    shader_addline(buffer, "DP3 TMP.w, TMP, TMP2;\n");
    shader_addline(buffer, "MUL TMP, TMP.w, TMP;\n");
    shader_addline(buffer, "MAD TMP, coefmul.x, TMP, -TMP2;\n");

    /* Cubemap textures will be more used than 3D ones. */
    shader_addline(buffer, "TEX T%lu, TMP, texture[%lu], CUBE;\n", reg, reg);
    current_state.current_row = 0;
}

static void pshader_hw_texm3x3spec(SHADER_OPCODE_ARG* arg) {

    IWineD3DPixelShaderImpl* shader = (IWineD3DPixelShaderImpl*) arg->shader;
    DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
    DWORD reg3 = arg->src[1] & D3DSP_REGNUM_MASK;
    SHADER_PARSE_STATE current_state = shader->baseShader.parse_state;
    SHADER_BUFFER* buffer = arg->buffer;
    char src0_name[50];

    pshader_gen_input_modifier_line(buffer, arg->src[0], 0, src0_name, arg->reg_maps->constantsF);
    shader_addline(buffer, "DP3 TMP.z, T%lu, %s;\n", reg, src0_name);

    /* Calculate reflection vector (Assume normal is normalized): RF = 2*(N.E)*N -E */
    shader_addline(buffer, "DP3 TMP.w, TMP, C[%lu];\n", reg3);
    shader_addline(buffer, "MUL TMP, TMP.w, TMP;\n");
    shader_addline(buffer, "MAD TMP, coefmul.x, TMP, -C[%lu];\n", reg3);

    /* Cubemap textures will be more used than 3D ones. */
    shader_addline(buffer, "TEX T%lu, TMP, texture[%lu], CUBE;\n", reg, reg);
    current_state.current_row = 0;
}

/** Generate a pixel shader string using either GL_FRAGMENT_PROGRAM_ARB
    or GLSL and send it to the card */
inline static VOID IWineD3DPixelShaderImpl_GenerateShader(
    IWineD3DPixelShader *iface,
    CONST DWORD *pFunction) {

    IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
    SHADER_BUFFER buffer;

    /* First pass: figure out which registers are used, what the semantics are, etc.. */
    shader_reg_maps reg_maps;
    DWORD semantics_in[WINED3DSHADERDECLUSAGE_MAX_USAGE];

    memset(&reg_maps, 0, sizeof(shader_reg_maps));
    memset(semantics_in, 0, WINED3DSHADERDECLUSAGE_MAX_USAGE * sizeof(DWORD));
    reg_maps.semantics_in = semantics_in;
    reg_maps.semantics_out = NULL;
    shader_get_registers_used((IWineD3DBaseShader*) This, &reg_maps, pFunction);
    /* FIXME: validate against OpenGL */

#if 0 /* FIXME: Use the buffer that is held by the device, this is ok since fixups will be skipped for software shaders
        it also requires entering a critical section but cuts down the runtime footprint of wined3d and any memory fragmentation that may occur... */
    if (This->device->fixupVertexBufferSize < SHADER_PGMSIZE) {
        HeapFree(GetProcessHeap(), 0, This->fixupVertexBuffer);
        This->fixupVertexBuffer = HeapAlloc(GetProcessHeap() , 0, SHADER_PGMSIZE);
        This->fixupVertexBufferSize = PGMSIZE;
        This->fixupVertexBuffer[0] = 0;
    }
    buffer.buffer = This->device->fixupVertexBuffer;
#else
    buffer.buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, SHADER_PGMSIZE); 
#endif
    buffer.bsize = 0;
    buffer.lineNo = 0;

    if (wined3d_settings.shader_mode == SHADER_GLSL) {

        /* Create the hw GLSL shader object and assign it as the baseShader.prgId */
        GLhandleARB shader_obj = GL_EXTCALL(glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB));

        /* Base Declarations */
        shader_generate_glsl_declarations( (IWineD3DBaseShader*) This, &reg_maps, &buffer);

        /* Base Shader Body */
        shader_generate_main( (IWineD3DBaseShader*) This, &buffer, &reg_maps, pFunction);

        /* Pixel shaders < 2.0 place the resulting color in R0 implicitly */
        if (This->baseShader.hex_version < D3DPS_VERSION(2,0))
            shader_addline(&buffer, "gl_FragColor = R0;\n");
        shader_addline(&buffer, "}\n\0");

        TRACE("Compiling shader object %u\n", shader_obj);
        GL_EXTCALL(glShaderSourceARB(shader_obj, 1, (const char**)&buffer.buffer, NULL));
        GL_EXTCALL(glCompileShaderARB(shader_obj));
        print_glsl_info_log(&GLINFO_LOCATION, shader_obj);

        /* Store the shader object */
        This->baseShader.prgId = shader_obj;

    } else if (wined3d_settings.shader_mode == SHADER_ARB) {
        /*  Create the hw ARB shader */
        shader_addline(&buffer, "!!ARBfp1.0\n");

        shader_addline(&buffer, "TEMP TMP;\n");     /* Used in matrix ops */
        shader_addline(&buffer, "TEMP TMP2;\n");    /* Used in matrix ops */
        shader_addline(&buffer, "TEMP TA;\n");      /* Used for modifiers */
        shader_addline(&buffer, "TEMP TB;\n");      /* Used for modifiers */
        shader_addline(&buffer, "TEMP TC;\n");      /* Used for modifiers */
        shader_addline(&buffer, "PARAM coefdiv = { 0.5, 0.25, 0.125, 0.0625 };\n");
        shader_addline(&buffer, "PARAM coefmul = { 2, 4, 8, 16 };\n");
        shader_addline(&buffer, "PARAM one = { 1.0, 1.0, 1.0, 1.0 };\n");

        /* Base Declarations */
        shader_generate_arb_declarations( (IWineD3DBaseShader*) This, &reg_maps, &buffer);

        /* Base Shader Body */
        shader_generate_main( (IWineD3DBaseShader*) This, &buffer, &reg_maps, pFunction);

        if (This->baseShader.hex_version < D3DPS_VERSION(2,0))
            shader_addline(&buffer, "MOV result.color, R0;\n");
        shader_addline(&buffer, "END\n\0"); 

        /* TODO: change to resource.glObjectHandle or something like that */
        GL_EXTCALL(glGenProgramsARB(1, &This->baseShader.prgId));

        TRACE("Creating a hw pixel shader, prg=%d\n", This->baseShader.prgId);
        GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, This->baseShader.prgId));

        TRACE("Created hw pixel shader, prg=%d\n", This->baseShader.prgId);
        /* Create the program and check for errors */
        GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
            buffer.bsize, buffer.buffer));

        if (glGetError() == GL_INVALID_OPERATION) {
            GLint errPos;
            glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errPos);
            FIXME("HW PixelShader Error at position %d: %s\n",
                  errPos, debugstr_a((const char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)));
            This->baseShader.prgId = -1;
        }
    }

#if 1 /* if were using the data buffer of device then we don't need to free it */
  HeapFree(GetProcessHeap(), 0, buffer.buffer);
#endif
}

static HRESULT WINAPI IWineD3DPixelShaderImpl_SetFunction(IWineD3DPixelShader *iface, CONST DWORD *pFunction) {

    IWineD3DPixelShaderImpl *This =(IWineD3DPixelShaderImpl *)iface;

    shader_trace_init((IWineD3DBaseShader*) This, pFunction);
    pshader_set_limits(This);

    /* Generate HW shader in needed */
    if (NULL != pFunction  && wined3d_settings.vs_mode == VS_HW) {
        TRACE("(%p) : Generating hardware program\n", This);
        IWineD3DPixelShaderImpl_GenerateShader(iface, pFunction);
    }

    TRACE("(%p) : Copying the function\n", This);
    if (NULL != pFunction) {
        This->baseShader.function = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->baseShader.functionLength);
        memcpy((void *)This->baseShader.function, pFunction, This->baseShader.functionLength);
    } else {
        This->baseShader.function = NULL;
    }

    /* TODO: Some proper return values for failures */
    TRACE("(%p) : Returning WINED3D_OK\n", This);
    return WINED3D_OK;
}

const IWineD3DPixelShaderVtbl IWineD3DPixelShader_Vtbl =
{
    /*** IUnknown methods ***/
    IWineD3DPixelShaderImpl_QueryInterface,
    IWineD3DPixelShaderImpl_AddRef,
    IWineD3DPixelShaderImpl_Release,
    /*** IWineD3DBase methods ***/
    IWineD3DPixelShaderImpl_GetParent,
    /*** IWineD3DBaseShader methods ***/
    IWineD3DPixelShaderImpl_SetFunction,
    /*** IWineD3DPixelShader methods ***/
    IWineD3DPixelShaderImpl_GetDevice,
    IWineD3DPixelShaderImpl_GetFunction
};