1 /**************************************************************************
3 * Copyright 2009, VMware, Inc.
5 * Copyright 2010 George Sapountzis <gsapountzis@gmail.com>
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
33 * Allow the loaders to use the XSHM extension. It probably requires callbacks
34 * for createImage/destroyImage similar to DRI2 getBuffers.
37 #include "util/u_format.h"
38 #include "util/u_memory.h"
39 #include "util/u_inlines.h"
40 #include "util/u_box.h"
41 #include "pipe/p_context.h"
42 #include "pipe-loader/pipe_loader.h"
43 #include "state_tracker/drisw_api.h"
44 #include "state_tracker/st_context.h"
46 #include "dri_screen.h"
47 #include "dri_context.h"
48 #include "dri_drawable.h"
49 #include "dri_query_renderer.h"
51 DEBUG_GET_ONCE_BOOL_OPTION(swrast_no_present, "SWRAST_NO_PRESENT", FALSE);
52 static boolean swrast_no_present = FALSE;
55 get_drawable_info(__DRIdrawable *dPriv, int *x, int *y, int *w, int *h)
57 __DRIscreen *sPriv = dPriv->driScreenPriv;
58 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
60 loader->getDrawableInfo(dPriv,
62 dPriv->loaderPrivate);
66 put_image(__DRIdrawable *dPriv, void *data, unsigned width, unsigned height)
68 __DRIscreen *sPriv = dPriv->driScreenPriv;
69 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
71 loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
73 data, dPriv->loaderPrivate);
77 put_image2(__DRIdrawable *dPriv, void *data, int x, int y,
78 unsigned width, unsigned height, unsigned stride)
80 __DRIscreen *sPriv = dPriv->driScreenPriv;
81 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
83 loader->putImage2(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
84 x, y, width, height, stride,
85 data, dPriv->loaderPrivate);
89 get_image(__DRIdrawable *dPriv, int x, int y, int width, int height, void *data)
91 __DRIscreen *sPriv = dPriv->driScreenPriv;
92 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
94 loader->getImage(dPriv,
96 data, dPriv->loaderPrivate);
100 get_image2(__DRIdrawable *dPriv, int x, int y, int width, int height, int stride, void *data)
102 __DRIscreen *sPriv = dPriv->driScreenPriv;
103 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
105 /* getImage2 support is only in version 3 or newer */
106 if (loader->base.version < 3)
109 loader->getImage2(dPriv,
110 x, y, width, height, stride,
111 data, dPriv->loaderPrivate);
115 drisw_update_drawable_info(struct dri_drawable *drawable)
117 __DRIdrawable *dPriv = drawable->dPriv;
120 get_drawable_info(dPriv, &x, &y, &dPriv->w, &dPriv->h);
124 drisw_get_image(struct dri_drawable *drawable,
125 int x, int y, unsigned width, unsigned height, unsigned stride,
128 __DRIdrawable *dPriv = drawable->dPriv;
129 int draw_x, draw_y, draw_w, draw_h;
131 get_drawable_info(dPriv, &draw_x, &draw_y, &draw_w, &draw_h);
132 get_image2(dPriv, x, y, draw_w, draw_h, stride, data);
136 drisw_put_image(struct dri_drawable *drawable,
137 void *data, unsigned width, unsigned height)
139 __DRIdrawable *dPriv = drawable->dPriv;
141 put_image(dPriv, data, width, height);
145 drisw_put_image2(struct dri_drawable *drawable,
146 void *data, int x, int y, unsigned width, unsigned height,
149 __DRIdrawable *dPriv = drawable->dPriv;
151 put_image2(dPriv, data, x, y, width, height, stride);
155 drisw_present_texture(__DRIdrawable *dPriv,
156 struct pipe_resource *ptex, struct pipe_box *sub_box)
158 struct dri_drawable *drawable = dri_drawable(dPriv);
159 struct dri_screen *screen = dri_screen(drawable->sPriv);
161 if (swrast_no_present)
164 screen->base.screen->flush_frontbuffer(screen->base.screen, ptex, 0, 0, drawable, sub_box);
168 drisw_invalidate_drawable(__DRIdrawable *dPriv)
170 struct dri_drawable *drawable = dri_drawable(dPriv);
172 drawable->texture_stamp = dPriv->lastStamp - 1;
174 p_atomic_inc(&drawable->base.stamp);
178 drisw_copy_to_front(__DRIdrawable * dPriv,
179 struct pipe_resource *ptex)
181 drisw_present_texture(dPriv, ptex, NULL);
183 drisw_invalidate_drawable(dPriv);
187 * Backend functions for st_framebuffer interface and swap_buffers.
191 drisw_swap_buffers(__DRIdrawable *dPriv)
193 struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv);
194 struct dri_drawable *drawable = dri_drawable(dPriv);
195 struct pipe_resource *ptex;
200 ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
204 pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
206 ctx->st->flush(ctx->st, ST_FLUSH_FRONT, NULL);
208 drisw_copy_to_front(dPriv, ptex);
213 drisw_copy_sub_buffer(__DRIdrawable *dPriv, int x, int y,
216 struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv);
217 struct dri_drawable *drawable = dri_drawable(dPriv);
218 struct pipe_resource *ptex;
223 ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
226 if (ctx->pp && drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL])
227 pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
229 ctx->st->flush(ctx->st, ST_FLUSH_FRONT, NULL);
231 u_box_2d(x, dPriv->h - y - h, w, h, &box);
232 drisw_present_texture(dPriv, ptex, &box);
237 drisw_flush_frontbuffer(struct dri_context *ctx,
238 struct dri_drawable *drawable,
239 enum st_attachment_type statt)
241 struct pipe_resource *ptex;
246 ptex = drawable->textures[statt];
249 drisw_copy_to_front(ctx->dPriv, ptex);
254 * Allocate framebuffer attachments.
256 * During fixed-size operation, the function keeps allocating new attachments
257 * as they are requested. Unused attachments are not removed, not until the
258 * framebuffer is resized or destroyed.
261 drisw_allocate_textures(struct dri_context *stctx,
262 struct dri_drawable *drawable,
263 const enum st_attachment_type *statts,
266 struct dri_screen *screen = dri_screen(drawable->sPriv);
267 const __DRIswrastLoaderExtension *loader = drawable->dPriv->driScreenPriv->swrast_loader;
268 struct pipe_resource templ;
269 unsigned width, height;
273 width = drawable->dPriv->w;
274 height = drawable->dPriv->h;
276 resized = (drawable->old_w != width ||
277 drawable->old_h != height);
279 /* remove outdated textures */
281 for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
282 pipe_resource_reference(&drawable->textures[i], NULL);
285 memset(&templ, 0, sizeof(templ));
286 templ.target = screen->target;
287 templ.width0 = width;
288 templ.height0 = height;
290 templ.array_size = 1;
291 templ.last_level = 0;
293 for (i = 0; i < count; i++) {
294 enum pipe_format format;
297 /* the texture already exists or not requested */
298 if (drawable->textures[statts[i]])
301 dri_drawable_get_format(drawable, statts[i], &format, &bind);
303 /* if we don't do any present, no need for display targets */
304 if (statts[i] != ST_ATTACHMENT_DEPTH_STENCIL && !swrast_no_present)
305 bind |= PIPE_BIND_DISPLAY_TARGET;
307 if (format == PIPE_FORMAT_NONE)
310 templ.format = format;
313 if (statts[i] == ST_ATTACHMENT_FRONT_LEFT &&
314 screen->base.screen->resource_create_front &&
315 loader->base.version >= 3) {
316 drawable->textures[statts[i]] =
317 screen->base.screen->resource_create_front(screen->base.screen, &templ, (const void *)drawable);
319 drawable->textures[statts[i]] =
320 screen->base.screen->resource_create(screen->base.screen, &templ);
323 drawable->old_w = width;
324 drawable->old_h = height;
328 drisw_update_tex_buffer(struct dri_drawable *drawable,
329 struct dri_context *ctx,
330 struct pipe_resource *res)
332 __DRIdrawable *dPriv = drawable->dPriv;
334 struct st_context *st_ctx = (struct st_context *)ctx->st;
335 struct pipe_context *pipe = st_ctx->pipe;
336 struct pipe_transfer *transfer;
339 int ximage_stride, line;
340 int cpp = util_format_get_blocksize(res->format);
342 get_drawable_info(dPriv, &x, &y, &w, &h);
344 map = pipe_transfer_map(pipe, res,
345 0, 0, // level, layer,
347 x, y, w, h, &transfer);
349 /* Copy the Drawable content to the mapped texture buffer */
350 get_image(dPriv, x, y, w, h, map);
352 /* The pipe transfer has a pitch rounded up to the nearest 64 pixels.
353 get_image() has a pitch rounded up to 4 bytes. */
354 ximage_stride = ((w * cpp) + 3) & -4;
355 for (line = h-1; line; --line) {
356 memmove(&map[line * transfer->stride],
357 &map[line * ximage_stride],
361 pipe_transfer_unmap(pipe, transfer);
364 extern __DRIimage *dri2_create_from_texture(__DRIcontext *context, int target, unsigned texture,
365 int depth, int level, unsigned *error,
366 void *loaderPrivate);
367 extern __DRIimage *dri2_lookup_egl_image(struct dri_screen *screen, void *handle);
368 extern void dri2_destroy_image(__DRIimage *img);
369 extern int convert_to_fourcc(int format);
370 extern __DRIimage *dri2_create_image_from_winsys(__DRIscreen *_screen,
371 int width, int height, int format,
372 int num_handles, struct winsys_handle *whandle,
373 void *loaderPrivate);
374 extern __DRI2fenceExtension dri2FenceExtension;
378 drisw_query_image(__DRIimage *image, int attrib, int *value)
381 case __DRI_IMAGE_ATTRIB_FORMAT:
382 *value = image->dri_format;
384 case __DRI_IMAGE_ATTRIB_WIDTH:
385 *value = image->texture->width0;
387 case __DRI_IMAGE_ATTRIB_HEIGHT:
388 *value = image->texture->height0;
390 case __DRI_IMAGE_ATTRIB_COMPONENTS:
391 if (image->dri_components == 0)
393 *value = image->dri_components;
395 case __DRI_IMAGE_ATTRIB_NUM_PLANES:
398 case __DRI_IMAGE_ATTRIB_FOURCC:
399 *value = convert_to_fourcc(image->dri_format);
407 * Backend function for init_screen.
410 static const __DRIimageExtension driswImageExtension = {
411 .base = { __DRI_IMAGE, 11 },
413 .createImageFromTexture = dri2_create_from_texture,
414 .destroyImage = dri2_destroy_image,
415 .queryImage = drisw_query_image,
418 static const __DRIextension *drisw_screen_extensions[] = {
419 &driTexBufferExtension.base,
420 &dri2RendererQueryExtension.base,
421 &dri2ConfigQueryExtension.base,
422 &driswImageExtension.base,
423 &dri2FenceExtension.base,
427 static struct drisw_loader_funcs drisw_lf = {
428 .get_image = drisw_get_image,
429 .put_image = drisw_put_image,
430 .put_image2 = drisw_put_image2
433 static const __DRIconfig **
434 drisw_init_screen(__DRIscreen * sPriv)
436 const __DRIconfig **configs;
437 struct dri_screen *screen;
438 struct pipe_screen *pscreen = NULL;
440 screen = CALLOC_STRUCT(dri_screen);
444 screen->sPriv = sPriv;
447 swrast_no_present = debug_get_option_swrast_no_present();
449 sPriv->driverPrivate = (void *)screen;
450 sPriv->extensions = drisw_screen_extensions;
452 if (pipe_loader_sw_probe_dri(&screen->dev, &drisw_lf))
453 pscreen = pipe_loader_create_screen(screen->dev);
458 configs = dri_init_screen_helper(screen, pscreen, "swrast");
462 screen->lookup_egl_image = dri2_lookup_egl_image;
463 driSWRastExtension.createImageFromWinsys = dri2_create_image_from_winsys;
467 dri_destroy_screen_helper(screen);
469 pipe_loader_release(&screen->dev, 1);
475 drisw_create_buffer(__DRIscreen * sPriv,
476 __DRIdrawable * dPriv,
477 const struct gl_config * visual, boolean isPixmap)
479 struct dri_drawable *drawable = NULL;
481 if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
484 drawable = dPriv->driverPrivate;
486 drawable->allocate_textures = drisw_allocate_textures;
487 drawable->update_drawable_info = drisw_update_drawable_info;
488 drawable->flush_frontbuffer = drisw_flush_frontbuffer;
489 drawable->update_tex_buffer = drisw_update_tex_buffer;
495 * DRI driver virtual function table.
497 * DRI versions differ in their implementation of init_screen and swap_buffers.
499 const struct __DriverAPIRec galliumsw_driver_api = {
500 .InitScreen = drisw_init_screen,
501 .DestroyScreen = dri_destroy_screen,
502 .CreateContext = dri_create_context,
503 .DestroyContext = dri_destroy_context,
504 .CreateBuffer = drisw_create_buffer,
505 .DestroyBuffer = dri_destroy_buffer,
506 .SwapBuffers = drisw_swap_buffers,
507 .MakeCurrent = dri_make_current,
508 .UnbindContext = dri_unbind_context,
509 .CopySubBuffer = drisw_copy_sub_buffer,
512 /* This is the table of extensions that the loader will dlsym() for. */
513 const __DRIextension *galliumsw_driver_extensions[] = {
514 &driCoreExtension.base,
515 &driSWRastExtension.base,
516 &driCopySubBufferExtension.base,
517 &gallium_config_options.base,
521 /* vim: set sw=3 ts=8 sts=3 expandtab: */