1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Bismarck, ND., USA
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
27 **************************************************************************/
44 #include "pipe/internal/p_winsys_screen.h"
45 #include "pipe/p_format.h"
46 #include "pipe/p_context.h"
47 #include "pipe/p_inlines.h"
48 #include "util/u_format.h"
49 #include "util/u_math.h"
50 #include "util/u_memory.h"
52 #include "cell/ppu/cell_context.h"
53 #include "cell/ppu/cell_screen.h"
54 #include "cell/ppu/cell_winsys.h"
55 #include "cell/ppu/cell_texture.h"
59 * Subclass of pipe_buffer for Xlib winsys.
60 * Low-level OS/window system memory buffer
64 struct pipe_buffer base
;
65 boolean userBuffer
; /** Is this a user-space buffer? */
75 * Subclass of pipe_winsys for Xlib winsys
77 struct xmesa_pipe_winsys
79 struct pipe_winsys base
;
85 static INLINE
struct xm_buffer
*
86 xm_buffer( struct pipe_buffer
*buf
)
88 return (struct xm_buffer
*)buf
;
92 /* Most callbacks map direcly onto dri_bufmgr operations:
95 xm_buffer_map(struct pipe_winsys
*pws
, struct pipe_buffer
*buf
,
98 struct xm_buffer
*xm_buf
= xm_buffer(buf
);
99 xm_buf
->mapped
= xm_buf
->data
;
100 return xm_buf
->mapped
;
104 xm_buffer_unmap(struct pipe_winsys
*pws
, struct pipe_buffer
*buf
)
106 struct xm_buffer
*xm_buf
= xm_buffer(buf
);
107 xm_buf
->mapped
= NULL
;
111 xm_buffer_destroy(/*struct pipe_winsys *pws,*/
112 struct pipe_buffer
*buf
)
114 struct xm_buffer
*oldBuf
= xm_buffer(buf
);
118 if (!oldBuf
->userBuffer
) {
119 align_free(oldBuf
->data
);
130 * For Cell. Basically, rearrange the pixels/quads from this layout:
143 twiddle_tile(const uint
*tileIn
, uint
*tileOut
)
147 for (y
= 0; y
< TILE_SIZE
; y
+=2) {
148 for (x
= 0; x
< TILE_SIZE
; x
+=2) {
149 int k
= 4 * (y
/2 * TILE_SIZE
/2 + x
/2);
150 tileOut
[y
* TILE_SIZE
+ (x
+ 0)] = tileIn
[k
];
151 tileOut
[y
* TILE_SIZE
+ (x
+ 1)] = tileIn
[k
+1];
152 tileOut
[(y
+ 1) * TILE_SIZE
+ (x
+ 0)] = tileIn
[k
+2];
153 tileOut
[(y
+ 1) * TILE_SIZE
+ (x
+ 1)] = tileIn
[k
+3];
161 * Display a surface that's in a tiled configuration. That is, all the
162 * pixels for a TILE_SIZExTILE_SIZE block are contiguous in memory.
165 xlib_cell_display_surface(struct xmesa_buffer
*b
, struct pipe_surface
*surf
)
168 struct xm_buffer
*xm_buf
= xm_buffer(
169 cell_texture(surf
->texture
)->buffer
);
170 const uint tilesPerRow
= (surf
->width
+ TILE_SIZE
- 1) / TILE_SIZE
;
173 ximage
= b
->tempImage
;
175 /* check that the XImage has been previously initialized */
176 assert(ximage
->format
);
177 assert(ximage
->bitmap_unit
);
179 /* update XImage's fields */
180 ximage
->width
= TILE_SIZE
;
181 ximage
->height
= TILE_SIZE
;
182 ximage
->bytes_per_line
= TILE_SIZE
* 4;
184 for (y
= 0; y
< surf
->height
; y
+= TILE_SIZE
) {
185 for (x
= 0; x
< surf
->width
; x
+= TILE_SIZE
) {
186 uint tmpTile
[TILE_SIZE
* TILE_SIZE
];
187 int tx
= x
/ TILE_SIZE
;
188 int ty
= y
/ TILE_SIZE
;
189 int offset
= ty
* tilesPerRow
+ tx
;
193 if (y
+ h
> surf
->height
)
194 h
= surf
->height
- y
;
195 if (x
+ w
> surf
->width
)
198 /* offset in pixels */
199 offset
*= TILE_SIZE
* TILE_SIZE
;
201 /* twiddle from ximage buffer to temp tile */
202 twiddle_tile((uint
*) xm_buf
->data
+ offset
, tmpTile
);
203 /* display temp tile data */
204 ximage
->data
= (char *) tmpTile
;
205 XPutImage(b
->xm_visual
->display
, b
->drawable
, b
->gc
,
206 ximage
, 0, 0, x
, y
, w
, h
);
216 xm_flush_frontbuffer(struct pipe_winsys
*pws
,
217 struct pipe_surface
*surf
,
218 void *context_private
)
221 * The front color buffer is actually just another XImage buffer.
222 * This function copies that XImage to the actual X Window.
224 XMesaContext xmctx
= (XMesaContext
) context_private
;
226 xlib_cell_display_surface(xmctx
->xm_buffer
, surf
);
232 xm_get_name(struct pipe_winsys
*pws
)
238 static struct pipe_buffer
*
239 xm_buffer_create(struct pipe_winsys
*pws
,
244 struct xm_buffer
*buffer
= CALLOC_STRUCT(xm_buffer
);
246 pipe_reference_init(&buffer
->base
.reference
, 1);
247 buffer
->base
.alignment
= alignment
;
248 buffer
->base
.usage
= usage
;
249 buffer
->base
.size
= size
;
252 if (buffer
->data
== NULL
) {
255 /* align to 16-byte multiple for Cell */
256 buffer
->data
= align_malloc(size
, max(alignment
, 16));
259 return &buffer
->base
;
264 * Create buffer which wraps user-space data.
266 static struct pipe_buffer
*
267 xm_user_buffer_create(struct pipe_winsys
*pws
, void *ptr
, unsigned bytes
)
269 struct xm_buffer
*buffer
= CALLOC_STRUCT(xm_buffer
);
270 pipe_reference_init(&buffer
->base
.reference
, 1);
271 buffer
->base
.size
= bytes
;
272 buffer
->userBuffer
= TRUE
;
276 return &buffer
->base
;
281 static struct pipe_buffer
*
282 xm_surface_buffer_create(struct pipe_winsys
*winsys
,
283 unsigned width
, unsigned height
,
284 enum pipe_format format
,
289 const unsigned alignment
= 64;
292 nblocksy
= util_format_get_nblocksy(format
, height
);
293 *stride
= align(util_format_get_stride(format
, width
), alignment
);
295 return winsys
->buffer_create(winsys
, alignment
,
297 /* XXX a bit of a hack */
298 *stride
* align(nblocksy
, TILE_SIZE
));
303 * Fence functions - basically nothing to do, as we don't create any actual
308 xm_fence_reference(struct pipe_winsys
*sws
, struct pipe_fence_handle
**ptr
,
309 struct pipe_fence_handle
*fence
)
315 xm_fence_signalled(struct pipe_winsys
*sws
, struct pipe_fence_handle
*fence
,
323 xm_fence_finish(struct pipe_winsys
*sws
, struct pipe_fence_handle
*fence
,
331 static struct pipe_winsys
*
332 xlib_create_cell_winsys( void )
334 static struct xmesa_pipe_winsys
*ws
= NULL
;
337 ws
= CALLOC_STRUCT(xmesa_pipe_winsys
);
339 /* Fill in this struct with callbacks that pipe will need to
340 * communicate with the window system, buffer manager, etc.
342 ws
->base
.buffer_create
= xm_buffer_create
;
343 ws
->base
.user_buffer_create
= xm_user_buffer_create
;
344 ws
->base
.buffer_map
= xm_buffer_map
;
345 ws
->base
.buffer_unmap
= xm_buffer_unmap
;
346 ws
->base
.buffer_destroy
= xm_buffer_destroy
;
348 ws
->base
.surface_buffer_create
= xm_surface_buffer_create
;
350 ws
->base
.fence_reference
= xm_fence_reference
;
351 ws
->base
.fence_signalled
= xm_fence_signalled
;
352 ws
->base
.fence_finish
= xm_fence_finish
;
354 ws
->base
.flush_frontbuffer
= xm_flush_frontbuffer
;
355 ws
->base
.get_name
= xm_get_name
;
362 static struct pipe_screen
*
363 xlib_create_cell_screen( void )
365 struct pipe_winsys
*winsys
;
366 struct pipe_screen
*screen
;
368 winsys
= xlib_create_cell_winsys();
372 screen
= cell_create_screen(winsys
);
380 winsys
->destroy( winsys
);
386 static struct pipe_context
*
387 xlib_create_cell_context( struct pipe_screen
*screen
,
390 struct pipe_context
*pipe
;
393 /* This takes a cell_winsys pointer, but probably that should be
394 * created and stored at screen creation, not context creation.
396 * The actual cell_winsys value isn't used for anything, so just
397 * passing NULL for now.
399 pipe
= cell_create_context( screen
, NULL
);
411 struct xm_driver xlib_cell_driver
=
413 .create_pipe_screen
= xlib_create_cell_screen
,
414 .create_pipe_context
= xlib_create_cell_context
,
415 .display_surface
= xlib_cell_display_surface
,
420 struct xm_driver xlib_cell_driver
=
422 .create_pipe_screen
= NULL
,
423 .create_pipe_context
= NULL
,
424 .display_surface
= NULL
,