tdfx_texman.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

    GLint l;
    FxU32 targetTMU;

    assert(tObj);
    ti = TDFX_TEXTURE_DATA(tObj);
    assert(ti);
    targetTMU = ti->whichTMU;

    switch (targetTMU) {
    case TDFX_TMU0:
    case TDFX_TMU1:
        if (ti->tm[targetTMU]) {
            for (l = ti->minLevel; l <= ti->maxLevel
                    && tObj->Image[0][l]->Data; l++) {
                GrLOD_t glideLod = ti->info.largeLodLog2 - l + tObj->BaseLevel;
                fxMesa->Glide.grTexDownloadMipMapLevel(targetTMU,
                                                  ti->tm[targetTMU]->startAddr,
                                                  glideLod,
                                                  ti->info.largeLodLog2,
                                                  ti->info.aspectRatioLog2,
                                                  ti->info.format,
                                                  GR_MIPMAPLEVELMASK_BOTH,
                                                  tObj->Image[0][l]->Data);
            }
        }
        break;
    case TDFX_TMU_SPLIT:
        if (ti->tm[TDFX_TMU0] && ti->tm[TDFX_TMU1]) {
            for (l = ti->minLevel; l <= ti->maxLevel
                    && tObj->Image[0][l]->Data; l++) {
                GrLOD_t glideLod = ti->info.largeLodLog2 - l + tObj->BaseLevel;
                fxMesa->Glide.grTexDownloadMipMapLevel(GR_TMU0,
                                                  ti->tm[TDFX_TMU0]->startAddr,
                                                  glideLod,
                                                  ti->info.largeLodLog2,
                                                  ti->info.aspectRatioLog2,
                                                  ti->info.format,
                                                  GR_MIPMAPLEVELMASK_ODD,
                                                  tObj->Image[0][l]->Data);

                fxMesa->Glide.grTexDownloadMipMapLevel(GR_TMU1,
                                                  ti->tm[TDFX_TMU1]->startAddr,
                                                  glideLod,
                                                  ti->info.largeLodLog2,
                                                  ti->info.aspectRatioLog2,
                                                  ti->info.format,
                                                  GR_MIPMAPLEVELMASK_EVEN,
                                                  tObj->Image[0][l]->Data);
            }
        }
        break;
    case TDFX_TMU_BOTH:
        if (ti->tm[TDFX_TMU0] && ti->tm[TDFX_TMU1]) {
            for (l = ti->minLevel; l <= ti->maxLevel
                    && tObj->Image[0][l]->Data; l++) {
                GrLOD_t glideLod = ti->info.largeLodLog2 - l + tObj->BaseLevel;
                fxMesa->Glide.grTexDownloadMipMapLevel(GR_TMU0,
                                                  ti->tm[TDFX_TMU0]->startAddr,
                                                  glideLod,
                                                  ti->info.largeLodLog2,
                                                  ti->info.aspectRatioLog2,
                                                  ti->info.format,
                                                  GR_MIPMAPLEVELMASK_BOTH,
                                                  tObj->Image[0][l]->Data);

                fxMesa->Glide.grTexDownloadMipMapLevel(GR_TMU1,
                                                  ti->tm[TDFX_TMU1]->startAddr,
                                                  glideLod,
                                                  ti->info.largeLodLog2,
                                                  ti->info.aspectRatioLog2,
                                                  ti->info.format,
                                                  GR_MIPMAPLEVELMASK_BOTH,
                                                  tObj->Image[0][l]->Data);
            }
        }
        break;
    default:
        _mesa_problem(NULL, "%s: bad tmu (%d)", __FUNCTION__, (int)targetTMU);
        return;
    }
}


void
tdfxTMReloadMipMapLevel(GLcontext *ctx, struct gl_texture_object *tObj,
                        GLint level)
{
    tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
    tdfxTexInfo *ti = TDFX_TEXTURE_DATA(tObj);
    GrLOD_t glideLod;
    FxU32 tmu;

    tmu = ti->whichTMU;
    glideLod =  ti->info.largeLodLog2 - level + tObj->BaseLevel;
    ASSERT(ti->isInTM);

    LOCK_HARDWARE(fxMesa);

    switch (tmu) {
    case TDFX_TMU0:
    case TDFX_TMU1:
        fxMesa->Glide.grTexDownloadMipMapLevel(tmu,
                                    ti->tm[tmu]->startAddr,
                                    glideLod,
                                    ti->info.largeLodLog2,
                                    ti->info.aspectRatioLog2,
                                    ti->info.format,
                                    GR_MIPMAPLEVELMASK_BOTH,
                                    tObj->Image[0][level]->Data);
        break;
    case TDFX_TMU_SPLIT:
        fxMesa->Glide.grTexDownloadMipMapLevel(GR_TMU0,
                                    ti->tm[GR_TMU0]->startAddr,
                                    glideLod,
                                    ti->info.largeLodLog2,
                                    ti->info.aspectRatioLog2,
                                    ti->info.format,
                                    GR_MIPMAPLEVELMASK_ODD,
                                    tObj->Image[0][level]->Data);

        fxMesa->Glide.grTexDownloadMipMapLevel(GR_TMU1,
                                    ti->tm[GR_TMU1]->startAddr,
                                    glideLod,
                                    ti->info.largeLodLog2,
                                    ti->info.aspectRatioLog2,
                                    ti->info.format,
                                    GR_MIPMAPLEVELMASK_EVEN,
                                    tObj->Image[0][level]->Data);
        break;
    case TDFX_TMU_BOTH:
        fxMesa->Glide.grTexDownloadMipMapLevel(GR_TMU0,
                                    ti->tm[GR_TMU0]->startAddr,
                                    glideLod,
                                    ti->info.largeLodLog2,
                                    ti->info.aspectRatioLog2,
                                    ti->info.format,
                                    GR_MIPMAPLEVELMASK_BOTH,
                                    tObj->Image[0][level]->Data);

        fxMesa->Glide.grTexDownloadMipMapLevel(GR_TMU1,
                                    ti->tm[GR_TMU1]->startAddr,
                                    glideLod,
                                    ti->info.largeLodLog2,
                                    ti->info.aspectRatioLog2,
                                    ti->info.format,
                                    GR_MIPMAPLEVELMASK_BOTH,
                                    tObj->Image[0][level]->Data);
        break;

    default:
        _mesa_problem(ctx, "%s: bad tmu (%d)", __FUNCTION__, (int)tmu);
        break;
    }
    UNLOCK_HARDWARE(fxMesa);
}


/*
 * Allocate space for the given texture in texture memory then
 * download (copy) it into that space.
 */
void
tdfxTMMoveInTM_NoLock( tdfxContextPtr fxMesa, struct gl_texture_object *tObj,
                       FxU32 targetTMU )
{
    tdfxTexInfo *ti = TDFX_TEXTURE_DATA(tObj);
    FxU32 texmemsize;

    fxMesa->stats.reqTexUpload++;

    if (ti->isInTM) {
        if (ti->whichTMU == targetTMU)
            return;
        if (targetTMU == TDFX_TMU_SPLIT || ti->whichTMU == TDFX_TMU_SPLIT) {
            tdfxTMMoveOutTM_NoLock(fxMesa, tObj);
        }
        else {
            if (ti->whichTMU == TDFX_TMU_BOTH)
                return;
            targetTMU = TDFX_TMU_BOTH;
        }
    }

    ti->whichTMU = targetTMU;

    switch (targetTMU) {
    case TDFX_TMU0:
    case TDFX_TMU1:
        texmemsize = fxMesa->Glide.grTexTextureMemRequired(GR_MIPMAPLEVELMASK_BOTH,
                                                       &(ti->info));
        ti->tm[targetTMU] = AllocTexMem(fxMesa, targetTMU, texmemsize);
        break;
    case TDFX_TMU_SPLIT:
        texmemsize = fxMesa->Glide.grTexTextureMemRequired(GR_MIPMAPLEVELMASK_ODD,
                                                       &(ti->info));
        ti->tm[TDFX_TMU0] = AllocTexMem(fxMesa, TDFX_TMU0, texmemsize);
        if (ti->tm[TDFX_TMU0])
           fxMesa->stats.memTexUpload += texmemsize;

        texmemsize = fxMesa->Glide.grTexTextureMemRequired(GR_MIPMAPLEVELMASK_EVEN,
                                                       &(ti->info));
        ti->tm[TDFX_TMU1] = AllocTexMem(fxMesa, TDFX_TMU1, texmemsize);
        break;
    case TDFX_TMU_BOTH:
        texmemsize = fxMesa->Glide.grTexTextureMemRequired(GR_MIPMAPLEVELMASK_BOTH,
                                                       &(ti->info));
        ti->tm[TDFX_TMU0] = AllocTexMem(fxMesa, TDFX_TMU0, texmemsize);
        if (ti->tm[TDFX_TMU0])
           fxMesa->stats.memTexUpload += texmemsize;

        /*texmemsize = fxMesa->Glide.grTexTextureMemRequired(GR_MIPMAPLEVELMASK_BOTH,
                                                       &(ti->info));*/
        ti->tm[TDFX_TMU1] = AllocTexMem(fxMesa, TDFX_TMU1, texmemsize);
        break;
    default:
        _mesa_problem(NULL, "%s: bad tmu (%d)", __FUNCTION__, (int)targetTMU);
        return;
    }

    ti->reloadImages = GL_TRUE;
    ti->isInTM = GL_TRUE;

    fxMesa->stats.texUpload++;
}


/*
 * Move the given texture out of hardware texture memory.
 * This deallocates the texture's memory space.
 */
void
tdfxTMMoveOutTM_NoLock( tdfxContextPtr fxMesa, struct gl_texture_object *tObj )
{
    struct gl_shared_state *mesaShared = fxMesa->glCtx->Shared;
    struct tdfxSharedState *shared = (struct tdfxSharedState *) mesaShared->DriverData;
    tdfxTexInfo *ti = TDFX_TEXTURE_DATA(tObj);

    if (MESA_VERBOSE & VERBOSE_DRIVER) {
        fprintf(stderr, "fxmesa: %s(%p (%d))\n", __FUNCTION__, (void *)tObj, tObj->Name);
    }

    /*
    VerifyFreeList(fxMesa, 0);
    VerifyFreeList(fxMesa, 1);
    */

    if (!ti || !ti->isInTM)
        return;

    switch (ti->whichTMU) {
    case TDFX_TMU0:
    case TDFX_TMU1:
        RemoveRange_NoLock(fxMesa, ti->whichTMU, ti->tm[ti->whichTMU]);
        break;
    case TDFX_TMU_SPLIT:
    case TDFX_TMU_BOTH:
        assert(!shared->umaTexMemory);
        RemoveRange_NoLock(fxMesa, TDFX_TMU0, ti->tm[TDFX_TMU0]);
        RemoveRange_NoLock(fxMesa, TDFX_TMU1, ti->tm[TDFX_TMU1]);
        break;
    default:
        _mesa_problem(NULL, "%s: bad tmu (%d)", __FUNCTION__, (int)ti->whichTMU);
        return;
    }

    ti->isInTM = GL_FALSE;
    ti->tm[0] = NULL;
    ti->tm[1] = NULL;
    ti->whichTMU = TDFX_TMU_NONE;

    /*
    VerifyFreeList(fxMesa, 0);
    VerifyFreeList(fxMesa, 1);
    */
}


/*
 * Called via glDeleteTexture to delete a texture object.
 */
void
tdfxTMFreeTexture(tdfxContextPtr fxMesa, struct gl_texture_object *tObj)
{
    tdfxTexInfo *ti = TDFX_TEXTURE_DATA(tObj);
    if (ti) {
        tdfxTMMoveOutTM(fxMesa, tObj);
        FREE(ti);
        tObj->DriverData = NULL;
    }
    /*
    VerifyFreeList(fxMesa, 0);
    VerifyFreeList(fxMesa, 1);
    */
}



/*
 * After a context switch this function will be called to restore
 * texture memory for the new context.
 */
void tdfxTMRestoreTextures_NoLock( tdfxContextPtr fxMesa )
{
   GLcontext *ctx = fxMesa->glCtx;
   struct _mesa_HashTable *textures = fxMesa->glCtx->Shared->TexObjects;
   GLuint id;

   for (id = _mesa_HashFirstEntry(textures);
        id;
        id = _mesa_HashNextEntry(textures, id)) {
      struct gl_texture_object *tObj
         = _mesa_lookup_texture(fxMesa->glCtx, id);
      tdfxTexInfo *ti = TDFX_TEXTURE_DATA( tObj );
      if ( ti && ti->isInTM ) {
         int i;
	 for ( i = 0 ; i < MAX_TEXTURE_UNITS ; i++ ) {
	    if ( ctx->Texture.Unit[i]._Current == tObj ) {
	       tdfxTMDownloadTexture( fxMesa, tObj );
	       break;
	    }
	 }
	 if ( i == MAX_TEXTURE_UNITS ) {
	    tdfxTMMoveOutTM_NoLock( fxMesa, tObj );
	 }
      }
   }
   /*
   VerifyFreeList(fxMesa, 0);
   VerifyFreeList(fxMesa, 1);
   */
}