+++ /dev/null
-/*
- * GLX Hardware Device Driver for Intel i810
- * Copyright (C) 1999 Keith Whitwell
- * Texmem interface changes (C) 2003 Dave Airlie
- *
- * 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
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS 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.
- *
- */
-
-#include "main/glheader.h"
-#include "main/macros.h"
-#include "main/mtypes.h"
-#include "main/simple_list.h"
-#include "main/enums.h"
-#include "main/colormac.h"
-#include "main/mm.h"
-
-#include "i810screen.h"
-#include "i810_dri.h"
-#include "i810context.h"
-#include "i810tex.h"
-#include "i810ioctl.h"
-
-
-void i810DestroyTexObj(i810ContextPtr imesa, i810TextureObjectPtr t)
-{
- /* See if it was the driver's current object.
- */
- if ( imesa != NULL ) {
- if (imesa->CurrentTexObj[0] == t) {
- imesa->CurrentTexObj[0] = 0;
- imesa->dirty &= ~I810_UPLOAD_TEX0;
- }
-
- if (imesa->CurrentTexObj[1] == t) {
- imesa->CurrentTexObj[1] = 0;
- imesa->dirty &= ~I810_UPLOAD_TEX1;
- }
- }
-}
-
-
-
-#if defined(i386) || defined(__i386__)
-/* From linux kernel i386 header files, copes with odd sizes better
- * than COPY_DWORDS would:
- */
-static INLINE void * __memcpy(void * to, const void * from, size_t n)
-{
-int d0, d1, d2;
-__asm__ __volatile__(
- "rep ; movsl\n\t"
- "testb $2,%b4\n\t"
- "je 1f\n\t"
- "movsw\n"
- "1:\ttestb $1,%b4\n\t"
- "je 2f\n\t"
- "movsb\n"
- "2:"
- : "=&c" (d0), "=&D" (d1), "=&S" (d2)
- :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
- : "memory");
-return (to);
-}
-#else
-/* Allow compilation on other architectures */
-#define __memcpy memcpy
-#endif
-
-/* Upload an image from mesa's internal copy.
- */
-static void i810UploadTexLevel( i810ContextPtr imesa,
- i810TextureObjectPtr t, int hwlevel )
-{
- const struct gl_texture_image *image = t->image[hwlevel].image;
- int j;
- GLuint texelBytes;
-
- if (!image || !image->Data)
- return;
-
- texelBytes = _mesa_get_format_bytes(image->TexFormat);
-
- if (image->Width * texelBytes == t->Pitch) {
- GLubyte *dst = (GLubyte *)(t->BufAddr + t->image[hwlevel].offset);
- GLubyte *src = (GLubyte *)image->Data;
-
- memcpy( dst, src, t->Pitch * image->Height );
- }
- else {
- switch (texelBytes) {
- case 1:
- {
- GLubyte *dst = (GLubyte *)(t->BufAddr + t->image[hwlevel].offset);
- GLubyte *src = (GLubyte *)image->Data;
-
- for (j = 0 ; j < image->Height ; j++, dst += t->Pitch) {
- __memcpy(dst, src, image->Width );
- src += image->Width;
- }
- }
- break;
- case 2:
- {
- GLushort *dst = (GLushort *)(t->BufAddr + t->image[hwlevel].offset);
- GLushort *src = (GLushort *)image->Data;
-
- for (j = 0 ; j < image->Height ; j++, dst += (t->Pitch/2)) {
- __memcpy(dst, src, image->Width * 2 );
- src += image->Width;
- }
- }
- break;
- default:
- fprintf(stderr, "%s: Not supported texel size %d\n",
- __FUNCTION__, texelBytes);
- }
- }
-}
-
-/* This is called with the lock held. May have to eject our own and/or
- * other client's texture objects to make room for the upload.
- */
-int i810UploadTexImagesLocked( i810ContextPtr imesa, i810TextureObjectPtr t )
-{
- int i;
- int ofs;
- int numLevels;
-
- /* Do we need to eject LRU texture objects?
- */
- if (!t->base.memBlock) {
- int heap;
-
- heap = driAllocateTexture( imesa->texture_heaps, imesa->nr_heaps,
- (driTextureObject *) t);
-
- if ( heap == -1 ) {
- return -1;
- }
-
- assert(t->base.memBlock);
- ofs = t->base.memBlock->ofs;
- t->BufAddr = imesa->i810Screen->tex.map + ofs;
- t->Setup[I810_TEXREG_MI3] = imesa->i810Screen->textureOffset + ofs;
-
- if (t == imesa->CurrentTexObj[0])
- I810_STATECHANGE(imesa, I810_UPLOAD_TEX0);
-
- if (t == imesa->CurrentTexObj[1])
- I810_STATECHANGE(imesa, I810_UPLOAD_TEX1);
-
- /* i810UpdateTexLRU( imesa, t );*/
- }
- driUpdateTextureLRU( (driTextureObject *) t );
-
- if (imesa->texture_heaps[0]->timestamp >= GET_DISPATCH_AGE(imesa))
- i810WaitAgeLocked( imesa, imesa->texture_heaps[0]->timestamp );
-
- numLevels = t->base.lastLevel - t->base.firstLevel + 1;
- for (i = 0 ; i < numLevels ; i++)
- if (t->base.dirty_images[0] & (1<<i))
- i810UploadTexLevel( imesa, t, i );
-
- t->base.dirty_images[0] = 0;
-
- return 0;
-}
projects / mesa.git / blobdiff