dd.c File Reference

#include "framebuf.h"

Include dependency graph for dd.c:

Go to the source code of this file.

Functions
DWORD CALLBACK	DdCanCreateSurface (LPDDHAL_CANCREATESURFACEDATA pccsd)
DWORD CALLBACK	DdCreateSurface (PDD_CREATESURFACEDATA pcsd)

Function Documentation

DdCanCreateSurface()

DWORD CALLBACK DdCanCreateSurface

(

LPDDHAL_CANCREATESURFACEDATA

pccsd

)

Definition at line 26 of file dd.c.

{
 
     /* We do not support 3d buffer so we fail here */
     if ((pccsd->lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_ZBUFFER) &&
        (pccsd->lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_VIDEOMEMORY))
     {
        pccsd->ddRVal = DDERR_INVALIDPIXELFORMAT;
        return DDHAL_DRIVER_HANDLED;
     }
 
 
     /* Check if another pixel format or not, we fail for now */
     if (pccsd->bIsDifferentPixelFormat)
     {
        /* check the fourcc diffent FOURCC, but we only support BMP for now */
        //if(pccsd->lpDDSurfaceDesc->ddpfPixelFormat.dwFlags & DDPF_FOURCC)
        //{
        //  /* We do not support other pixel format */
        //  switch (pccsd->lpDDSurfaceDesc->ddpfPixelFormat.dwFourCC)
        //  {
        //      default:
        //          pccsd->ddRVal = DDERR_INVALIDPIXELFORMAT;
        //          return DDHAL_DRIVER_HANDLED;
        //  }
        //}
        // /* check the texture support, we do not support testure for now */
        //else if((pccsd->lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_TEXTURE))
        //{
        //  /* We do not support texture surface */
        //  pccsd->ddRVal = DDERR_INVALIDPIXELFORMAT;
        //  return DDHAL_DRIVER_HANDLED;
        //}
 
        /* Fail */
        pccsd->ddRVal = DDERR_INVALIDPIXELFORMAT;
        return DDHAL_DRIVER_HANDLED;
    }
 
     pccsd->ddRVal = DD_OK;
     return DDHAL_DRIVER_HANDLED;
}

Referenced by DrvEnableDirectDraw().

DdCreateSurface()

DWORD CALLBACK DdCreateSurface

(

PDD_CREATESURFACEDATA

pcsd

)

Definition at line 70 of file dd.c.

{
    int i;
 
    if (pcsd->dwSCnt < 1)
    {
        pcsd->ddRVal = DDERR_GENERIC;
        return DDHAL_DRIVER_NOTHANDLED;
    }
 
 
    for (i=0; i<(int)pcsd->dwSCnt; i++)
    {
        pcsd->lplpSList[i]->lpGbl->lPitch = (DWORD)(pcsd->lplpSList[i]->lpGbl->wWidth *
                                            (pcsd->lplpSList[i]->lpGbl->ddpfSurface.dwRGBBitCount / 8));
 
        pcsd->lplpSList[i]->lpGbl->dwBlockSizeX = pcsd->lplpSList[i]->lpGbl->lPitch *
                                                  (DWORD)(pcsd->lplpSList[i]->lpGbl->wHeight);
 
        pcsd->lplpSList[i]->lpGbl->dwBlockSizeY = 1;
 
        if ( pcsd->lplpSList[i] ->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
        {
            /* We maybe should alloc it with EngAlloc
               for now we trusting ddraw alloc it        */
            pcsd->lplpSList[i]->lpGbl->fpVidMem = 0;
        }
        else
        {
 
            /* We maybe should alloc it with EngAlloc
               for now we trusting ddraw alloc it        */
            pcsd->lplpSList[i]->lpGbl->fpVidMem = DDHAL_PLEASEALLOC_BLOCKSIZE;
        }
 
        pcsd->lpDDSurfaceDesc->lPitch = pcsd->lplpSList[i]->lpGbl->lPitch;
        pcsd->lpDDSurfaceDesc->dwFlags |= DDSD_PITCH;
 
    } // for i
 
 
 
    pcsd->ddRVal = DD_OK;
    return DDHAL_DRIVER_HANDLED;
}

Referenced by DrvEnableDirectDraw().