1 /**************************************************************************
3 * Copyright 2008 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 **************************************************************************/
33 * @author Keith Whitwell
35 * @author Jose Fonseca
41 #include "pipe/internal/p_winsys_screen.h"
42 #include "pipe/p_format.h"
43 #include "pipe/p_context.h"
44 #include "pipe/p_inlines.h"
45 #include "util/u_math.h"
46 #include "util/u_memory.h"
47 #include "softpipe/sp_winsys.h"
48 #include "softpipe/sp_texture.h"
49 #include "stw_winsys.h"
52 struct gdi_softpipe_buffer
54 struct pipe_buffer base
;
55 boolean userBuffer
; /** Is this a user-space buffer? */
62 static INLINE
struct gdi_softpipe_buffer
*
63 gdi_softpipe_buffer( struct pipe_buffer
*buf
)
65 return (struct gdi_softpipe_buffer
*)buf
;
70 gdi_softpipe_buffer_map(struct pipe_winsys
*winsys
,
71 struct pipe_buffer
*buf
,
74 struct gdi_softpipe_buffer
*gdi_softpipe_buf
= gdi_softpipe_buffer(buf
);
75 gdi_softpipe_buf
->mapped
= gdi_softpipe_buf
->data
;
76 return gdi_softpipe_buf
->mapped
;
81 gdi_softpipe_buffer_unmap(struct pipe_winsys
*winsys
,
82 struct pipe_buffer
*buf
)
84 struct gdi_softpipe_buffer
*gdi_softpipe_buf
= gdi_softpipe_buffer(buf
);
85 gdi_softpipe_buf
->mapped
= NULL
;
90 gdi_softpipe_buffer_destroy(struct pipe_buffer
*buf
)
92 struct gdi_softpipe_buffer
*oldBuf
= gdi_softpipe_buffer(buf
);
95 if (!oldBuf
->userBuffer
)
96 align_free(oldBuf
->data
);
106 gdi_softpipe_get_name(struct pipe_winsys
*winsys
)
112 static struct pipe_buffer
*
113 gdi_softpipe_buffer_create(struct pipe_winsys
*winsys
,
118 struct gdi_softpipe_buffer
*buffer
= CALLOC_STRUCT(gdi_softpipe_buffer
);
120 pipe_reference_init(&buffer
->base
.reference
, 1);
121 buffer
->base
.alignment
= alignment
;
122 buffer
->base
.usage
= usage
;
123 buffer
->base
.size
= size
;
125 buffer
->data
= align_malloc(size
, alignment
);
127 return &buffer
->base
;
132 * Create buffer which wraps user-space data.
134 static struct pipe_buffer
*
135 gdi_softpipe_user_buffer_create(struct pipe_winsys
*winsys
,
139 struct gdi_softpipe_buffer
*buffer
;
141 buffer
= CALLOC_STRUCT(gdi_softpipe_buffer
);
145 pipe_reference_init(&buffer
->base
.reference
, 1);
146 buffer
->base
.size
= bytes
;
147 buffer
->userBuffer
= TRUE
;
150 return &buffer
->base
;
155 * Round n up to next multiple.
157 static INLINE
unsigned
158 round_up(unsigned n
, unsigned multiple
)
160 return (n
+ multiple
- 1) & ~(multiple
- 1);
164 static struct pipe_buffer
*
165 gdi_softpipe_surface_buffer_create(struct pipe_winsys
*winsys
,
166 unsigned width
, unsigned height
,
167 enum pipe_format format
,
172 const unsigned alignment
= 64;
173 struct pipe_format_block block
;
174 unsigned nblocksx
, nblocksy
;
176 pf_get_block(format
, &block
);
177 nblocksx
= pf_get_nblocksx(&block
, width
);
178 nblocksy
= pf_get_nblocksy(&block
, height
);
179 *stride
= round_up(nblocksx
* block
.size
, alignment
);
181 return winsys
->buffer_create(winsys
, alignment
,
188 gdi_softpipe_dummy_flush_frontbuffer(struct pipe_winsys
*winsys
,
189 struct pipe_surface
*surface
,
190 void *context_private
)
197 gdi_softpipe_fence_reference(struct pipe_winsys
*winsys
,
198 struct pipe_fence_handle
**ptr
,
199 struct pipe_fence_handle
*fence
)
205 gdi_softpipe_fence_signalled(struct pipe_winsys
*winsys
,
206 struct pipe_fence_handle
*fence
,
214 gdi_softpipe_fence_finish(struct pipe_winsys
*winsys
,
215 struct pipe_fence_handle
*fence
,
223 gdi_softpipe_destroy(struct pipe_winsys
*winsys
)
229 static struct pipe_screen
*
230 gdi_softpipe_screen_create(void)
232 static struct pipe_winsys
*winsys
;
233 struct pipe_screen
*screen
;
235 winsys
= CALLOC_STRUCT(pipe_winsys
);
239 winsys
->destroy
= gdi_softpipe_destroy
;
241 winsys
->buffer_create
= gdi_softpipe_buffer_create
;
242 winsys
->user_buffer_create
= gdi_softpipe_user_buffer_create
;
243 winsys
->buffer_map
= gdi_softpipe_buffer_map
;
244 winsys
->buffer_unmap
= gdi_softpipe_buffer_unmap
;
245 winsys
->buffer_destroy
= gdi_softpipe_buffer_destroy
;
247 winsys
->surface_buffer_create
= gdi_softpipe_surface_buffer_create
;
249 winsys
->fence_reference
= gdi_softpipe_fence_reference
;
250 winsys
->fence_signalled
= gdi_softpipe_fence_signalled
;
251 winsys
->fence_finish
= gdi_softpipe_fence_finish
;
253 winsys
->flush_frontbuffer
= gdi_softpipe_dummy_flush_frontbuffer
;
254 winsys
->get_name
= gdi_softpipe_get_name
;
256 screen
= softpipe_create_screen(winsys
);
258 gdi_softpipe_destroy(winsys
);
264 static struct pipe_context
*
265 gdi_softpipe_context_create(struct pipe_screen
*screen
)
267 return softpipe_create(screen
);
272 gdi_softpipe_present(struct pipe_screen
*screen
,
273 struct pipe_surface
*surface
,
276 struct softpipe_texture
*texture
;
277 struct gdi_softpipe_buffer
*buffer
;
280 texture
= softpipe_texture(surface
->texture
);
282 buffer
= gdi_softpipe_buffer(texture
->buffer
);
284 memset(&bmi
, 0, sizeof(BITMAPINFO
));
285 bmi
.bmiHeader
.biSize
= sizeof(BITMAPINFOHEADER
);
286 bmi
.bmiHeader
.biWidth
= texture
->stride
[surface
->level
] / pf_get_size(surface
->format
);
287 bmi
.bmiHeader
.biHeight
= -(long)surface
->height
;
288 bmi
.bmiHeader
.biPlanes
= 1;
289 bmi
.bmiHeader
.biBitCount
= pf_get_bits(surface
->format
);
290 bmi
.bmiHeader
.biCompression
= BI_RGB
;
291 bmi
.bmiHeader
.biSizeImage
= 0;
292 bmi
.bmiHeader
.biXPelsPerMeter
= 0;
293 bmi
.bmiHeader
.biYPelsPerMeter
= 0;
294 bmi
.bmiHeader
.biClrUsed
= 0;
295 bmi
.bmiHeader
.biClrImportant
= 0;
298 0, 0, surface
->width
, surface
->height
,
299 0, 0, surface
->width
, surface
->height
,
300 buffer
->data
, &bmi
, 0, SRCCOPY
);
304 static const struct stw_winsys stw_winsys
= {
305 &gdi_softpipe_screen_create
,
306 &gdi_softpipe_context_create
,
307 &gdi_softpipe_present
,
308 NULL
, /* get_adapter_luid */
309 NULL
, /* shared_surface_open */
310 NULL
, /* shared_surface_close */
316 DllMain(HINSTANCE hinstDLL
, DWORD fdwReason
, LPVOID lpReserved
)
319 case DLL_PROCESS_ATTACH
:
320 if (!stw_init(&stw_winsys
)) {
323 return stw_init_thread();
325 case DLL_THREAD_ATTACH
:
326 return stw_init_thread();
328 case DLL_THREAD_DETACH
:
329 stw_cleanup_thread();
332 case DLL_PROCESS_DETACH
:
333 stw_cleanup_thread();