src/parsec/disk-image/parsec/parsec-benchmark/pkgs/libs/mesa/src/src/mesa/drivers/dri/mga/mgatexmem.c - public/gem5-resources - Git at Google

 /*
  * Copyright 2000-2001 VA Linux Systems, Inc.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * on the rights to use, copy, modify, merge, publish, distribute, sub
  * license, and/or sell copies of the Software, and to permit persons to whom
  * the Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice (including the next
  * paragraph) shall be included in all copies or substantial portions of the
  * Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors:
  *    Keith Whitwell <keith@tungstengraphics.com>
  */
 /* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgatexmem.c,v 1.7 2002/10/30 12:51:36 alanh Exp $ */

 #include "glheader.h"

 #include "mm.h"
 #include "mgacontext.h"
 #include "mgatex.h"
 #include "mgaregs.h"
 #include "mgaioctl.h"
 #include "mga_xmesa.h"

 #include "imports.h"
 #include "simple_list.h"

 /**
  * Destroy any device-dependent state associated with the texture.  This may
  * include NULLing out hardware state that points to the texture.
  */
 void
 mgaDestroyTexObj( mgaContextPtr mmesa, mgaTextureObjectPtr t )
 {
     unsigned   i;


     /* See if it was the driver's current object.
      */

     if ( mmesa != NULL )
     {
 	if ( t->age > mmesa->dirtyAge )
 	    mmesa->dirtyAge = t->age;

 	for ( i = 0 ; i < mmesa->glCtx->Const.MaxTextureUnits ; i++ )
 	{
 	    if ( t == mmesa->CurrentTexObj[ i ] ) {
 		mmesa->CurrentTexObj[ i ] = NULL;
 	    }
 	}
     }
 }


 /**
  * Upload a texture image from system memory to either on-card or AGP
  * memory.  Uploads to on-card memory are performed using an ILOAD operation.
  * This is used for both initial loading of the entire image, and texSubImage
  * updates.
  *
  * Performed with the hardware lock held.
  *
  * Even though this function is named "upload subimage," the entire image
  * is uploaded.
  *
  * \param mmesa  Driver context.
  * \param t      Texture to be uploaded.
  * \param hwlevel  Mipmap level of the texture to be uploaded.
  *
  * \bug As mentioned above, this fuction actually copies the entier mipmap
  *      level.  There should be a version of this function that performs
  *      sub-rectangle uploads.  This will perform quite a bit better if only
  *      a small portion of a larger texture has been updated.  Care would
  *      need to be take with such an implementation once glCopyTexImage has
  *      been hardware accelerated.
  */
 static void mgaUploadSubImage( mgaContextPtr mmesa,
 			       mgaTextureObjectPtr t, GLint hwlevel )
 {
    struct gl_texture_image * texImage;
    unsigned     offset;
    unsigned     texelBytes;
    unsigned     length;
    const int level = hwlevel + t->base.firstLevel;


    if ( (hwlevel < 0)
 	|| (hwlevel >= (MGA_IS_G200(mmesa)
 		      ? G200_TEX_MAXLEVELS : G400_TEX_MAXLEVELS)) ) {
       fprintf( stderr, "[%s:%d] level = %d\n", __FILE__, __LINE__, level );
       return;
    }

    texImage = t->base.tObj->Image[0][level];
    if ( texImage == NULL ) {
       fprintf( stderr, "[%s:%d] Image[%d] = NULL\n", __FILE__, __LINE__,
 	       level );
       return;
    }


    if (texImage->Data == NULL) {
       fprintf(stderr, "null texture image data tObj %p level %d\n",
 	      (void *) t->base.tObj, level);
       return;
    }


    /* find the proper destination offset for this level */
    if ( MGA_IS_G200(mmesa) ) {
       offset = (t->base.memBlock->ofs + t->offsets[hwlevel]);
    }
    else {
       unsigned  i;

       offset = t->base.memBlock->ofs;
       for ( i = 0 ; i < hwlevel ; i++ ) {
 	 offset += (t->offsets[1] >> (i * 2));
       }
    }


    /* Copy the texture from system memory to a memory space that can be
     * directly used by the hardware for texturing.
     */

    texelBytes = texImage->TexFormat->TexelBytes;
    length = texImage->Width * texImage->Height * texelBytes;
    if ( t->base.heap->heapId == MGA_CARD_HEAP ) {
       unsigned  tex_offset = 0;
       unsigned  to_copy;


       /* We may not be able to upload the entire texture in one batch due to
        * register limits or dma buffer limits.  Split the copy up into maximum
        * sized chunks.
        */

       offset += mmesa->mgaScreen->textureOffset[ t->base.heap->heapId ];
       while ( length != 0 ) {
 	 mgaGetILoadBufferLocked( mmesa );

 	 /* The kernel ILOAD ioctl requires that the lenght be an even multiple
 	  * of MGA_ILOAD_ALIGN.
 	  */
 	 length = ((length) + MGA_ILOAD_MASK) & ~MGA_ILOAD_MASK;

 	 to_copy = MIN2( length, MGA_BUFFER_SIZE );
 	 (void) memcpy( mmesa->iload_buffer->address,
 			(GLubyte *) texImage->Data + tex_offset, to_copy );

 	 if ( MGA_DEBUG & DEBUG_VERBOSE_TEXTURE )
 	     fprintf(stderr, "[%s:%d] address/size = 0x%08lx/%d\n",
 		     __FILE__, __LINE__,
 		     (long) (offset + tex_offset),
 		     to_copy );

 	 mgaFireILoadLocked( mmesa, offset + tex_offset, to_copy );
 	 tex_offset += to_copy;
 	 length -= to_copy;
       }
    } else {
       /* FIXME: the sync for direct copy reduces speed.. */
       /* This works, is slower for uploads to card space and needs
        * additional synchronization with the dma stream.
        */

       UPDATE_LOCK(mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT);

       memcpy( mmesa->mgaScreen->texVirtual[t->base.heap->heapId] + offset,
 	      texImage->Data, length );

       if ( MGA_DEBUG & DEBUG_VERBOSE_TEXTURE )
 	 fprintf(stderr, "[%s:%d] address/size = 0x%08lx/%d\n",
 		 __FILE__, __LINE__,
 		 (long) (mmesa->mgaScreen->texVirtual[t->base.heap->heapId]
 			 + offset),
 		 length);
    }
 }


 /**
  * Upload the texture images associated with texture \a t.  This might
  * require the allocation of texture memory.
  *
  * \param mmesa Context pointer
  * \param t Texture to be uploaded
  */

 int mgaUploadTexImages( mgaContextPtr mmesa, mgaTextureObjectPtr t )
 {
    int i;
    int ofs;


    if ( (t == NULL) || (t->base.totalSize == 0) )
       return 0;

    LOCK_HARDWARE( mmesa );

    if (t->base.memBlock == NULL ) {
       int heap;

       heap = driAllocateTexture( mmesa->texture_heaps, mmesa->nr_heaps,
 				 (driTextureObject *) t );
       if ( heap == -1 ) {
 	 UNLOCK_HARDWARE( mmesa );
 	 return -1;
       }

       ofs = mmesa->mgaScreen->textureOffset[ heap ]
 	   + t->base.memBlock->ofs;

       if ( MGA_IS_G200(mmesa) ) {
 	 t->setup.texorg  = ofs;
 	 t->setup.texorg1 = ofs + t->offsets[1];
 	 t->setup.texorg2 = ofs + t->offsets[2];
 	 t->setup.texorg3 = ofs + t->offsets[3];
 	 t->setup.texorg4 = ofs + t->offsets[4];
       }
       else {
 	 t->setup.texorg  = ofs | TO_texorgoffsetsel;
 	 t->setup.texorg1 = t->offsets[1];
 	 t->setup.texorg2 = 0;
 	 t->setup.texorg3 = 0;
 	 t->setup.texorg4 = 0;
       }

       mmesa->dirty |= MGA_UPLOAD_CONTEXT;
    }

    /* Let the world know we've used this memory recently.
     */
    driUpdateTextureLRU( (driTextureObject *) t );

    if (MGA_DEBUG&DEBUG_VERBOSE_TEXTURE)
       fprintf(stderr, "[%s:%d] dispatch age: %d age freed memory: %d\n",
 	      __FILE__, __LINE__,
 	      GET_DISPATCH_AGE(mmesa), mmesa->dirtyAge);

    if (mmesa->dirtyAge >= GET_DISPATCH_AGE(mmesa))
       mgaWaitAgeLocked( mmesa, mmesa->dirtyAge );

    if (t->base.dirty_images[0]) {
       const int numLevels = t->base.lastLevel - t->base.firstLevel + 1;

       if (MGA_DEBUG&DEBUG_VERBOSE_TEXTURE)
 	 fprintf(stderr, "[%s:%d] dirty_images[0] = 0x%04x\n",
 		 __FILE__, __LINE__, t->base.dirty_images[0] );

       for (i = 0 ; i < numLevels ; i++) {
 	 if ( (t->base.dirty_images[0] & (1U << i)) != 0 ) {
 	    mgaUploadSubImage( mmesa, t, i );
 	 }
       }
       t->base.dirty_images[0] = 0;
    }


    UNLOCK_HARDWARE( mmesa );

    return 0;
 }
	/*
	* Copyright 2000-2001 VA Linux Systems, Inc.
	* All Rights Reserved.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* on the rights to use, copy, modify, merge, publish, distribute, sub
	* license, and/or sell copies of the Software, and to permit persons to whom
	* the Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice (including the next
	* paragraph) shall be included in all copies or substantial portions of the
	* Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	* Authors:
	* Keith Whitwell <keith@tungstengraphics.com>
	*/
	/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgatexmem.c,v 1.7 2002/10/30 12:51:36 alanh Exp $ */

	#include "glheader.h"

	#include "mm.h"
	#include "mgacontext.h"
	#include "mgatex.h"
	#include "mgaregs.h"
	#include "mgaioctl.h"
	#include "mga_xmesa.h"

	#include "imports.h"
	#include "simple_list.h"

	/**
	* Destroy any device-dependent state associated with the texture. This may
	* include NULLing out hardware state that points to the texture.
	*/
	void
	mgaDestroyTexObj( mgaContextPtr mmesa, mgaTextureObjectPtr t )
	{
	unsigned i;


	/* See if it was the driver's current object.
	*/

	if ( mmesa != NULL )
	{
	if ( t->age > mmesa->dirtyAge )
	mmesa->dirtyAge = t->age;

	for ( i = 0 ; i < mmesa->glCtx->Const.MaxTextureUnits ; i++ )
	{
	if ( t == mmesa->CurrentTexObj[ i ] ) {
	mmesa->CurrentTexObj[ i ] = NULL;
	}
	}
	}
	}


	/**
	* Upload a texture image from system memory to either on-card or AGP
	* memory. Uploads to on-card memory are performed using an ILOAD operation.
	* This is used for both initial loading of the entire image, and texSubImage
	* updates.
	*
	* Performed with the hardware lock held.
	*
	* Even though this function is named "upload subimage," the entire image
	* is uploaded.
	*
	* \param mmesa Driver context.
	* \param t Texture to be uploaded.
	* \param hwlevel Mipmap level of the texture to be uploaded.
	*
	* \bug As mentioned above, this fuction actually copies the entier mipmap
	* level. There should be a version of this function that performs
	* sub-rectangle uploads. This will perform quite a bit better if only
	* a small portion of a larger texture has been updated. Care would
	* need to be take with such an implementation once glCopyTexImage has
	* been hardware accelerated.
	*/
	static void mgaUploadSubImage( mgaContextPtr mmesa,
	mgaTextureObjectPtr t, GLint hwlevel )
	{
	struct gl_texture_image * texImage;
	unsigned offset;
	unsigned texelBytes;
	unsigned length;
	const int level = hwlevel + t->base.firstLevel;


	if ( (hwlevel < 0)
	\|\| (hwlevel >= (MGA_IS_G200(mmesa)
	? G200_TEX_MAXLEVELS : G400_TEX_MAXLEVELS)) ) {
	fprintf( stderr, "[%s:%d] level = %d\n", __FILE__, __LINE__, level );
	return;
	}

	texImage = t->base.tObj->Image[0][level];
	if ( texImage == NULL ) {
	fprintf( stderr, "[%s:%d] Image[%d] = NULL\n", __FILE__, __LINE__,
	level );
	return;
	}


	if (texImage->Data == NULL) {
	fprintf(stderr, "null texture image data tObj %p level %d\n",
	(void *) t->base.tObj, level);
	return;
	}


	/* find the proper destination offset for this level */
	if ( MGA_IS_G200(mmesa) ) {
	offset = (t->base.memBlock->ofs + t->offsets[hwlevel]);
	}
	else {
	unsigned i;

	offset = t->base.memBlock->ofs;
	for ( i = 0 ; i < hwlevel ; i++ ) {
	offset += (t->offsets[1] >> (i * 2));
	}
	}


	/* Copy the texture from system memory to a memory space that can be
	* directly used by the hardware for texturing.
	*/

	texelBytes = texImage->TexFormat->TexelBytes;
	length = texImage->Width * texImage->Height * texelBytes;
	if ( t->base.heap->heapId == MGA_CARD_HEAP ) {
	unsigned tex_offset = 0;
	unsigned to_copy;


	/* We may not be able to upload the entire texture in one batch due to
	* register limits or dma buffer limits. Split the copy up into maximum
	* sized chunks.
	*/

	offset += mmesa->mgaScreen->textureOffset[ t->base.heap->heapId ];
	while ( length != 0 ) {
	mgaGetILoadBufferLocked( mmesa );

	/* The kernel ILOAD ioctl requires that the lenght be an even multiple
	* of MGA_ILOAD_ALIGN.
	*/
	length = ((length) + MGA_ILOAD_MASK) & ~MGA_ILOAD_MASK;

	to_copy = MIN2( length, MGA_BUFFER_SIZE );
	(void) memcpy( mmesa->iload_buffer->address,
	(GLubyte *) texImage->Data + tex_offset, to_copy );

	if ( MGA_DEBUG & DEBUG_VERBOSE_TEXTURE )
	fprintf(stderr, "[%s:%d] address/size = 0x%08lx/%d\n",
	__FILE__, __LINE__,
	(long) (offset + tex_offset),
	to_copy );

	mgaFireILoadLocked( mmesa, offset + tex_offset, to_copy );
	tex_offset += to_copy;
	length -= to_copy;
	}
	} else {
	/* FIXME: the sync for direct copy reduces speed.. */
	/* This works, is slower for uploads to card space and needs
	* additional synchronization with the dma stream.
	*/

	UPDATE_LOCK(mmesa, DRM_LOCK_FLUSH \| DRM_LOCK_QUIESCENT);

	memcpy( mmesa->mgaScreen->texVirtual[t->base.heap->heapId] + offset,
	texImage->Data, length );

	if ( MGA_DEBUG & DEBUG_VERBOSE_TEXTURE )
	fprintf(stderr, "[%s:%d] address/size = 0x%08lx/%d\n",
	__FILE__, __LINE__,
	(long) (mmesa->mgaScreen->texVirtual[t->base.heap->heapId]
	+ offset),
	length);
	}
	}


	/**
	* Upload the texture images associated with texture \a t. This might
	* require the allocation of texture memory.
	*
	* \param mmesa Context pointer
	* \param t Texture to be uploaded
	*/

	int mgaUploadTexImages( mgaContextPtr mmesa, mgaTextureObjectPtr t )
	{
	int i;
	int ofs;


	if ( (t == NULL) \|\| (t->base.totalSize == 0) )
	return 0;

	LOCK_HARDWARE( mmesa );

	if (t->base.memBlock == NULL ) {
	int heap;

	heap = driAllocateTexture( mmesa->texture_heaps, mmesa->nr_heaps,
	(driTextureObject *) t );
	if ( heap == -1 ) {
	UNLOCK_HARDWARE( mmesa );
	return -1;
	}

	ofs = mmesa->mgaScreen->textureOffset[ heap ]
	+ t->base.memBlock->ofs;

	if ( MGA_IS_G200(mmesa) ) {
	t->setup.texorg = ofs;
	t->setup.texorg1 = ofs + t->offsets[1];
	t->setup.texorg2 = ofs + t->offsets[2];
	t->setup.texorg3 = ofs + t->offsets[3];
	t->setup.texorg4 = ofs + t->offsets[4];
	}
	else {
	t->setup.texorg = ofs \| TO_texorgoffsetsel;
	t->setup.texorg1 = t->offsets[1];
	t->setup.texorg2 = 0;
	t->setup.texorg3 = 0;
	t->setup.texorg4 = 0;
	}

	mmesa->dirty \|= MGA_UPLOAD_CONTEXT;
	}

	/* Let the world know we've used this memory recently.
	*/
	driUpdateTextureLRU( (driTextureObject *) t );

	if (MGA_DEBUG&DEBUG_VERBOSE_TEXTURE)
	fprintf(stderr, "[%s:%d] dispatch age: %d age freed memory: %d\n",
	__FILE__, __LINE__,
	GET_DISPATCH_AGE(mmesa), mmesa->dirtyAge);

	if (mmesa->dirtyAge >= GET_DISPATCH_AGE(mmesa))
	mgaWaitAgeLocked( mmesa, mmesa->dirtyAge );

	if (t->base.dirty_images[0]) {
	const int numLevels = t->base.lastLevel - t->base.firstLevel + 1;

	if (MGA_DEBUG&DEBUG_VERBOSE_TEXTURE)
	fprintf(stderr, "[%s:%d] dirty_images[0] = 0x%04x\n",
	__FILE__, __LINE__, t->base.dirty_images[0] );

	for (i = 0 ; i < numLevels ; i++) {
	if ( (t->base.dirty_images[0] & (1U << i)) != 0 ) {
	mgaUploadSubImage( mmesa, t, i );
	}
	}
	t->base.dirty_images[0] = 0;
	}


	UNLOCK_HARDWARE( mmesa );

	return 0;
	}