2 * Copyright 2000-2001 VA Linux Systems, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
25 * Keith Whitwell <keith@tungstengraphics.com>
31 #include "mgacontext.h"
35 #include "mga_xmesa.h"
38 #include "simple_list.h"
41 * Destroy any device-dependent state associated with the texture. This may
42 * include NULLing out hardware state that points to the texture.
45 mgaDestroyTexObj( mgaContextPtr mmesa, mgaTextureObjectPtr t )
50 /* See if it was the driver's current object.
55 if ( t->age > mmesa->dirtyAge )
56 mmesa->dirtyAge = t->age;
58 for ( i = 0 ; i < mmesa->glCtx->Const.MaxTextureUnits ; i++ )
60 if ( t == mmesa->CurrentTexObj[ i ] ) {
61 mmesa->CurrentTexObj[ i ] = NULL;
69 * Upload a texture image from system memory to either on-card or AGP
70 * memory. Uploads to on-card memory are performed using an ILOAD operation.
71 * This is used for both initial loading of the entire image, and texSubImage
74 * Performed with the hardware lock held.
76 * Even though this function is named "upload subimage," the entire image
79 * \param mmesa Driver context.
80 * \param t Texture to be uploaded.
81 * \param hwlevel Mipmap level of the texture to be uploaded.
83 * \bug As mentioned above, this fuction actually copies the entier mipmap
84 * level. There should be a version of this function that performs
85 * sub-rectangle uploads. This will perform quite a bit better if only
86 * a small portion of a larger texture has been updated. Care would
87 * need to be take with such an implementation once glCopyTexImage has
88 * been hardware accelerated.
90 static void mgaUploadSubImage( mgaContextPtr mmesa,
91 mgaTextureObjectPtr t, GLint hwlevel )
93 struct gl_texture_image * texImage;
97 const int level = hwlevel + t->base.firstLevel;
101 || (hwlevel >= (MGA_IS_G200(mmesa)
102 ? G200_TEX_MAXLEVELS : G400_TEX_MAXLEVELS)) ) {
103 fprintf( stderr, "[%s:%d] level = %d\n", __FILE__, __LINE__, level );
107 texImage = t->base.tObj->Image[0][level];
108 if ( texImage == NULL ) {
109 fprintf( stderr, "[%s:%d] Image[%d] = NULL\n", __FILE__, __LINE__,
115 if (texImage->Data == NULL) {
116 fprintf(stderr, "null texture image data tObj %p level %d\n",
117 (void *) t->base.tObj, level);
122 /* find the proper destination offset for this level */
123 if ( MGA_IS_G200(mmesa) ) {
124 offset = (t->base.memBlock->ofs + t->offsets[hwlevel]);
129 offset = t->base.memBlock->ofs;
130 for ( i = 0 ; i < hwlevel ; i++ ) {
131 offset += (t->offsets[1] >> (i * 2));
136 /* Copy the texture from system memory to a memory space that can be
137 * directly used by the hardware for texturing.
140 texelBytes = texImage->TexFormat->TexelBytes;
141 length = texImage->Width * texImage->Height * texelBytes;
142 if ( t->base.heap->heapId == MGA_CARD_HEAP ) {
143 unsigned tex_offset = 0;
147 /* We may not be able to upload the entire texture in one batch due to
148 * register limits or dma buffer limits. Split the copy up into maximum
152 offset += mmesa->mgaScreen->textureOffset[ t->base.heap->heapId ];
153 while ( length != 0 ) {
154 mgaGetILoadBufferLocked( mmesa );
156 /* The kernel ILOAD ioctl requires that the lenght be an even multiple
157 * of MGA_ILOAD_ALIGN.
159 length = ((length) + MGA_ILOAD_MASK) & ~MGA_ILOAD_MASK;
161 to_copy = MIN2( length, MGA_BUFFER_SIZE );
162 (void) memcpy( mmesa->iload_buffer->address,
163 (GLubyte *) texImage->Data + tex_offset, to_copy );
165 if ( MGA_DEBUG & DEBUG_VERBOSE_TEXTURE )
166 fprintf(stderr, "[%s:%d] address/size = 0x%08lx/%d\n",
168 (long) (offset + tex_offset),
171 mgaFireILoadLocked( mmesa, offset + tex_offset, to_copy );
172 tex_offset += to_copy;
176 /* FIXME: the sync for direct copy reduces speed.. */
177 /* This works, is slower for uploads to card space and needs
178 * additional synchronization with the dma stream.
181 UPDATE_LOCK(mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT);
183 memcpy( mmesa->mgaScreen->texVirtual[t->base.heap->heapId] + offset,
184 texImage->Data, length );
186 if ( MGA_DEBUG & DEBUG_VERBOSE_TEXTURE )
187 fprintf(stderr, "[%s:%d] address/size = 0x%08lx/%d\n",
189 (long) (mmesa->mgaScreen->texVirtual[t->base.heap->heapId]
197 * Upload the texture images associated with texture \a t. This might
198 * require the allocation of texture memory.
200 * \param mmesa Context pointer
201 * \param t Texture to be uploaded
204 int mgaUploadTexImages( mgaContextPtr mmesa, mgaTextureObjectPtr t )
210 if ( (t == NULL) || (t->base.totalSize == 0) )
213 LOCK_HARDWARE( mmesa );
215 if (t->base.memBlock == NULL ) {
218 heap = driAllocateTexture( mmesa->texture_heaps, mmesa->nr_heaps,
219 (driTextureObject *) t );
221 UNLOCK_HARDWARE( mmesa );
225 ofs = mmesa->mgaScreen->textureOffset[ heap ]
226 + t->base.memBlock->ofs;
228 if ( MGA_IS_G200(mmesa) ) {
229 t->setup.texorg = ofs;
230 t->setup.texorg1 = ofs + t->offsets[1];
231 t->setup.texorg2 = ofs + t->offsets[2];
232 t->setup.texorg3 = ofs + t->offsets[3];
233 t->setup.texorg4 = ofs + t->offsets[4];
236 t->setup.texorg = ofs | TO_texorgoffsetsel;
237 t->setup.texorg1 = t->offsets[1];
238 t->setup.texorg2 = 0;
239 t->setup.texorg3 = 0;
240 t->setup.texorg4 = 0;
243 mmesa->dirty |= MGA_UPLOAD_CONTEXT;
246 /* Let the world know we've used this memory recently.
248 driUpdateTextureLRU( (driTextureObject *) t );
250 if (MGA_DEBUG&DEBUG_VERBOSE_TEXTURE)
251 fprintf(stderr, "[%s:%d] dispatch age: %d age freed memory: %d\n",
253 GET_DISPATCH_AGE(mmesa), mmesa->dirtyAge);
255 if (mmesa->dirtyAge >= GET_DISPATCH_AGE(mmesa))
256 mgaWaitAgeLocked( mmesa, mmesa->dirtyAge );
258 if (t->base.dirty_images[0]) {
259 const int numLevels = t->base.lastLevel - t->base.firstLevel + 1;
261 if (MGA_DEBUG&DEBUG_VERBOSE_TEXTURE)
262 fprintf(stderr, "[%s:%d] dirty_images[0] = 0x%04x\n",
263 __FILE__, __LINE__, t->base.dirty_images[0] );
265 for (i = 0 ; i < numLevels ; i++) {
266 if ( (t->base.dirty_images[0] & (1U << i)) != 0 ) {
267 mgaUploadSubImage( mmesa, t, i );
270 t->base.dirty_images[0] = 0;
274 UNLOCK_HARDWARE( mmesa );