2 * GLX Hardware Device Driver for Intel i810
3 * Copyright (C) 1999 Keith Whitwell
4 * Texmem interface changes (C) 2003 Dave Airlie
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
22 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 #include "main/glheader.h"
27 #include "main/macros.h"
28 #include "main/mtypes.h"
29 #include "main/simple_list.h"
30 #include "main/enums.h"
31 #include "main/colormac.h"
34 #include "i810screen.h"
36 #include "i810context.h"
38 #include "i810ioctl.h"
41 void i810DestroyTexObj(i810ContextPtr imesa, i810TextureObjectPtr t)
43 /* See if it was the driver's current object.
45 if ( imesa != NULL ) {
46 if (imesa->CurrentTexObj[0] == t) {
47 imesa->CurrentTexObj[0] = 0;
48 imesa->dirty &= ~I810_UPLOAD_TEX0;
51 if (imesa->CurrentTexObj[1] == t) {
52 imesa->CurrentTexObj[1] = 0;
53 imesa->dirty &= ~I810_UPLOAD_TEX1;
60 #if defined(i386) || defined(__i386__)
61 /* From linux kernel i386 header files, copes with odd sizes better
62 * than COPY_DWORDS would:
64 static INLINE void * __memcpy(void * to, const void * from, size_t n)
72 "1:\ttestb $1,%b4\n\t"
76 : "=&c" (d0), "=&D" (d1), "=&S" (d2)
77 :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
82 /* Allow compilation on other architectures */
83 #define __memcpy memcpy
86 /* Upload an image from mesa's internal copy.
88 static void i810UploadTexLevel( i810ContextPtr imesa,
89 i810TextureObjectPtr t, int hwlevel )
91 const struct gl_texture_image *image = t->image[hwlevel].image;
95 if (!image || !image->Data)
98 texelBytes = _mesa_get_format_bytes(image->TexFormat);
100 if (image->Width * texelBytes == t->Pitch) {
101 GLubyte *dst = (GLubyte *)(t->BufAddr + t->image[hwlevel].offset);
102 GLubyte *src = (GLubyte *)image->Data;
104 memcpy( dst, src, t->Pitch * image->Height );
107 switch (texelBytes) {
110 GLubyte *dst = (GLubyte *)(t->BufAddr + t->image[hwlevel].offset);
111 GLubyte *src = (GLubyte *)image->Data;
113 for (j = 0 ; j < image->Height ; j++, dst += t->Pitch) {
114 __memcpy(dst, src, image->Width );
121 GLushort *dst = (GLushort *)(t->BufAddr + t->image[hwlevel].offset);
122 GLushort *src = (GLushort *)image->Data;
124 for (j = 0 ; j < image->Height ; j++, dst += (t->Pitch/2)) {
125 __memcpy(dst, src, image->Width * 2 );
131 fprintf(stderr, "%s: Not supported texel size %d\n",
132 __FUNCTION__, texelBytes);
137 /* This is called with the lock held. May have to eject our own and/or
138 * other client's texture objects to make room for the upload.
140 int i810UploadTexImagesLocked( i810ContextPtr imesa, i810TextureObjectPtr t )
146 /* Do we need to eject LRU texture objects?
148 if (!t->base.memBlock) {
151 heap = driAllocateTexture( imesa->texture_heaps, imesa->nr_heaps,
152 (driTextureObject *) t);
158 assert(t->base.memBlock);
159 ofs = t->base.memBlock->ofs;
160 t->BufAddr = imesa->i810Screen->tex.map + ofs;
161 t->Setup[I810_TEXREG_MI3] = imesa->i810Screen->textureOffset + ofs;
163 if (t == imesa->CurrentTexObj[0])
164 I810_STATECHANGE(imesa, I810_UPLOAD_TEX0);
166 if (t == imesa->CurrentTexObj[1])
167 I810_STATECHANGE(imesa, I810_UPLOAD_TEX1);
169 /* i810UpdateTexLRU( imesa, t );*/
171 driUpdateTextureLRU( (driTextureObject *) t );
173 if (imesa->texture_heaps[0]->timestamp >= GET_DISPATCH_AGE(imesa))
174 i810WaitAgeLocked( imesa, imesa->texture_heaps[0]->timestamp );
176 numLevels = t->base.lastLevel - t->base.firstLevel + 1;
177 for (i = 0 ; i < numLevels ; i++)
178 if (t->base.dirty_images[0] & (1<<i))
179 i810UploadTexLevel( imesa, t, i );
181 t->base.dirty_images[0] = 0;