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* GLX Hardware Device Driver for Intel i810
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* Copyright (C) 1999 Keith Whitwell
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* Texmem interface changes (C) 2003 Dave Airlie
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#include "main/glheader.h"
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#include "main/macros.h"
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#include "main/mtypes.h"
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#include "main/simple_list.h"
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#include "main/enums.h"
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#include "main/colormac.h"
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#include "i810screen.h"
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#include "i810context.h"
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#include "i810ioctl.h"
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void i810DestroyTexObj(i810ContextPtr imesa, i810TextureObjectPtr t)
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/* See if it was the driver's current object.
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if ( imesa != NULL ) {
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if (imesa->CurrentTexObj[0] == t) {
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imesa->CurrentTexObj[0] = 0;
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imesa->dirty &= ~I810_UPLOAD_TEX0;
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if (imesa->CurrentTexObj[1] == t) {
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imesa->CurrentTexObj[1] = 0;
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imesa->dirty &= ~I810_UPLOAD_TEX1;
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#if defined(i386) || defined(__i386__)
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/* From linux kernel i386 header files, copes with odd sizes better
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* than COPY_DWORDS would:
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static INLINE void * __memcpy(void * to, const void * from, size_t n)
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"1:\ttestb $1,%b4\n\t"
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: "=&c" (d0), "=&D" (d1), "=&S" (d2)
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:"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
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/* Allow compilation on other architectures */
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#define __memcpy memcpy
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/* Upload an image from mesa's internal copy.
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static void i810UploadTexLevel( i810ContextPtr imesa,
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i810TextureObjectPtr t, int hwlevel )
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const struct gl_texture_image *image = t->image[hwlevel].image;
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if (!image || !image->Data)
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texelBytes = _mesa_get_format_bytes(image->TexFormat);
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if (image->Width * texelBytes == t->Pitch) {
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GLubyte *dst = (GLubyte *)(t->BufAddr + t->image[hwlevel].offset);
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GLubyte *src = (GLubyte *)image->Data;
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memcpy( dst, src, t->Pitch * image->Height );
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switch (texelBytes) {
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GLubyte *dst = (GLubyte *)(t->BufAddr + t->image[hwlevel].offset);
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GLubyte *src = (GLubyte *)image->Data;
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for (j = 0 ; j < image->Height ; j++, dst += t->Pitch) {
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__memcpy(dst, src, image->Width );
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GLushort *dst = (GLushort *)(t->BufAddr + t->image[hwlevel].offset);
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GLushort *src = (GLushort *)image->Data;
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for (j = 0 ; j < image->Height ; j++, dst += (t->Pitch/2)) {
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__memcpy(dst, src, image->Width * 2 );
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fprintf(stderr, "%s: Not supported texel size %d\n",
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__FUNCTION__, texelBytes);
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/* This is called with the lock held. May have to eject our own and/or
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* other client's texture objects to make room for the upload.
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int i810UploadTexImagesLocked( i810ContextPtr imesa, i810TextureObjectPtr t )
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/* Do we need to eject LRU texture objects?
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if (!t->base.memBlock) {
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heap = driAllocateTexture( imesa->texture_heaps, imesa->nr_heaps,
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(driTextureObject *) t);
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assert(t->base.memBlock);
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ofs = t->base.memBlock->ofs;
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t->BufAddr = imesa->i810Screen->tex.map + ofs;
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t->Setup[I810_TEXREG_MI3] = imesa->i810Screen->textureOffset + ofs;
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if (t == imesa->CurrentTexObj[0])
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I810_STATECHANGE(imesa, I810_UPLOAD_TEX0);
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if (t == imesa->CurrentTexObj[1])
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I810_STATECHANGE(imesa, I810_UPLOAD_TEX1);
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/* i810UpdateTexLRU( imesa, t );*/
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driUpdateTextureLRU( (driTextureObject *) t );
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if (imesa->texture_heaps[0]->timestamp >= GET_DISPATCH_AGE(imesa))
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i810WaitAgeLocked( imesa, imesa->texture_heaps[0]->timestamp );
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numLevels = t->base.lastLevel - t->base.firstLevel + 1;
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for (i = 0 ; i < numLevels ; i++)
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if (t->base.dirty_images[0] & (1<<i))
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i810UploadTexLevel( imesa, t, i );
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t->base.dirty_images[0] = 0;