summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/noop/noop_pipe.c
blob: e47f944b59b5b24e308d08e079aab8fd4e3f3d8b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
/*
 * Copyright 2010 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * on the rights to use, copy, modify, merge, publish, distribute, sub
 * license, and/or sell copies of the Software, and to permit persons to whom
 * the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#include <stdio.h>
#include <errno.h>
#include "pipe/p_defines.h"
#include "pipe/p_state.h"
#include "pipe/p_context.h"
#include "pipe/p_screen.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "noop_public.h"

DEBUG_GET_ONCE_BOOL_OPTION(noop, "GALLIUM_NOOP", FALSE)

void noop_init_state_functions(struct pipe_context *ctx);

struct noop_pipe_screen {
	struct pipe_screen	pscreen;
	struct pipe_screen	*oscreen;
};

/*
 * query
 */
struct noop_query {
	unsigned	query;
};
static struct pipe_query *noop_create_query(struct pipe_context *ctx, unsigned query_type)
{
	struct noop_query *query = CALLOC_STRUCT(noop_query);

	return (struct pipe_query *)query;
}

static void noop_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
{
	FREE(query);
}

static void noop_begin_query(struct pipe_context *ctx, struct pipe_query *query)
{
}

static void noop_end_query(struct pipe_context *ctx, struct pipe_query *query)
{
}

static boolean noop_get_query_result(struct pipe_context *ctx,
					struct pipe_query *query,
					boolean wait,
					union pipe_query_result *vresult)
{
	uint64_t *result = (uint64_t*)vresult;

	*result = 0;
	return TRUE;
}


/*
 * resource
 */
struct noop_resource {
	struct pipe_resource	base;
	unsigned		size;
	char			*data;
	struct sw_displaytarget	*dt;
};

static struct pipe_resource *noop_resource_create(struct pipe_screen *screen,
						const struct pipe_resource *templ)
{
	struct noop_resource *nresource;
	unsigned stride;

	nresource = CALLOC_STRUCT(noop_resource);
	if (nresource == NULL)
		return NULL;

	stride = util_format_get_stride(templ->format, templ->width0);
	nresource->base = *templ;
	nresource->base.screen = screen;
	nresource->size = stride * templ->height0 * templ->depth0;
	nresource->data = MALLOC(nresource->size);
	pipe_reference_init(&nresource->base.reference, 1);
	if (nresource->data == NULL) {
		FREE(nresource);
		return NULL;
	}
	return &nresource->base;
}

static struct pipe_resource *noop_resource_from_handle(struct pipe_screen *screen,
							const struct pipe_resource *templ,
							struct winsys_handle *handle)
{
	struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
	struct pipe_screen *oscreen = noop_screen->oscreen;
	struct pipe_resource *result;
	struct pipe_resource *noop_resource;

	result = oscreen->resource_from_handle(oscreen, templ, handle);
	noop_resource = noop_resource_create(screen, result);
	pipe_resource_reference(&result, NULL);
	return noop_resource;
}

static boolean noop_resource_get_handle(struct pipe_screen *screen,
					struct pipe_resource *resource,
					struct winsys_handle *handle)
{
	return FALSE;
}

static void noop_resource_destroy(struct pipe_screen *screen,
					struct pipe_resource *resource)
{
	struct noop_resource *nresource = (struct noop_resource *)resource;

	FREE(nresource->data);
	FREE(resource);
}

static struct pipe_resource *noop_user_buffer_create(struct pipe_screen *screen,
							void *ptr, unsigned bytes,
							unsigned bind)
{
	struct pipe_resource templ;

	templ.target = PIPE_BUFFER;
	templ.format = PIPE_FORMAT_R8_UNORM;
	templ.usage = PIPE_USAGE_IMMUTABLE;
	templ.bind = bind;
	templ.width0 = bytes;
	templ.height0 = 1;
	templ.depth0 = 1;
	templ.flags = 0;
	return noop_resource_create(screen, &templ);
}


/*
 * transfer
 */
static struct pipe_transfer *noop_get_transfer(struct pipe_context *context,
						struct pipe_resource *resource,
						unsigned level,
						enum pipe_transfer_usage usage,
						const struct pipe_box *box)
{
	struct pipe_transfer *transfer;

	transfer = CALLOC_STRUCT(pipe_transfer);
	if (transfer == NULL)
		return NULL;
	pipe_resource_reference(&transfer->resource, resource);
	transfer->level = level;
	transfer->usage = usage;
	transfer->box = *box;
	transfer->stride = 1;
	transfer->layer_stride = 1;
	return transfer;
}

static void *noop_transfer_map(struct pipe_context *pipe,
				struct pipe_transfer *transfer)
{
	struct noop_resource *nresource = (struct noop_resource *)transfer->resource;

	return nresource->data;
}

static void noop_transfer_flush_region(struct pipe_context *pipe,
					struct pipe_transfer *transfer,
					const struct pipe_box *box)
{
}

static void noop_transfer_unmap(struct pipe_context *pipe,
				struct pipe_transfer *transfer)
{
}

static void noop_transfer_destroy(struct pipe_context *pipe,
					struct pipe_transfer *transfer)
{
	pipe_resource_reference(&transfer->resource, NULL);
	FREE(transfer);
}

static void noop_transfer_inline_write(struct pipe_context *pipe,
					struct pipe_resource *resource,
					unsigned level,
					unsigned usage,
					const struct pipe_box *box,
					const void *data,
					unsigned stride,
					unsigned layer_stride)
{
}


/*
 * clear/copy
 */
static void noop_clear(struct pipe_context *ctx, unsigned buffers,
		       const union pipe_color_union *color, double depth, unsigned stencil)
{
}

static void noop_clear_render_target(struct pipe_context *ctx,
				     struct pipe_surface *dst,
				     const union pipe_color_union *color,
				     unsigned dstx, unsigned dsty,
				     unsigned width, unsigned height)
{
}

static void noop_clear_depth_stencil(struct pipe_context *ctx,
				     struct pipe_surface *dst,
				     unsigned clear_flags,
				     double depth,
				     unsigned stencil,
				     unsigned dstx, unsigned dsty,
				     unsigned width, unsigned height)
{
}

static void noop_resource_copy_region(struct pipe_context *ctx,
				      struct pipe_resource *dst,
				      unsigned dst_level,
				      unsigned dstx, unsigned dsty, unsigned dstz,
				      struct pipe_resource *src,
				      unsigned src_level,
				      const struct pipe_box *src_box)
{
}


/*
 * context
 */
static void noop_flush(struct pipe_context *ctx,
			struct pipe_fence_handle **fence)
{
}

static void noop_destroy_context(struct pipe_context *ctx)
{
	FREE(ctx);
}

static struct pipe_context *noop_create_context(struct pipe_screen *screen, void *priv)
{
	struct pipe_context *ctx = CALLOC_STRUCT(pipe_context);

	if (ctx == NULL)
		return NULL;
	ctx->screen = screen;
	ctx->priv = priv;
	ctx->destroy = noop_destroy_context;
	ctx->flush = noop_flush;
	ctx->clear = noop_clear;
	ctx->clear_render_target = noop_clear_render_target;
	ctx->clear_depth_stencil = noop_clear_depth_stencil;
	ctx->resource_copy_region = noop_resource_copy_region;
	ctx->create_query = noop_create_query;
	ctx->destroy_query = noop_destroy_query;
	ctx->begin_query = noop_begin_query;
	ctx->end_query = noop_end_query;
	ctx->get_query_result = noop_get_query_result;
	ctx->get_transfer = noop_get_transfer;
	ctx->transfer_map = noop_transfer_map;
	ctx->transfer_flush_region = noop_transfer_flush_region;
	ctx->transfer_unmap = noop_transfer_unmap;
	ctx->transfer_destroy = noop_transfer_destroy;
	ctx->transfer_inline_write = noop_transfer_inline_write;
	noop_init_state_functions(ctx);

	return ctx;
}


/*
 * pipe_screen
 */
static void noop_flush_frontbuffer(struct pipe_screen *_screen,
				   struct pipe_resource *resource,
				   unsigned level, unsigned layer,
				   void *context_private)
{
}

static const char *noop_get_vendor(struct pipe_screen* pscreen)
{
	return "X.Org";
}

static const char *noop_get_name(struct pipe_screen* pscreen)
{
	return "NOOP";
}

static int noop_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
{
	struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;

	return screen->get_param(screen, param);
}

static float noop_get_paramf(struct pipe_screen* pscreen,
			     enum pipe_capf param)
{
	struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;

	return screen->get_paramf(screen, param);
}

static int noop_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
{
	struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;

	return screen->get_shader_param(screen, shader, param);
}

static boolean noop_is_format_supported(struct pipe_screen* pscreen,
					enum pipe_format format,
					enum pipe_texture_target target,
					unsigned sample_count,
                                        unsigned usage)
{
	struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;

	return screen->is_format_supported(screen, format, target, sample_count, usage);
}

static void noop_destroy_screen(struct pipe_screen *screen)
{
	struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
	struct pipe_screen *oscreen = noop_screen->oscreen;

	oscreen->destroy(oscreen);
	FREE(screen);
}

struct pipe_screen *noop_screen_create(struct pipe_screen *oscreen)
{
	struct noop_pipe_screen *noop_screen;
	struct pipe_screen *screen;

	if (!debug_get_option_noop()) {
		return oscreen;
	}

	noop_screen = CALLOC_STRUCT(noop_pipe_screen);
	if (noop_screen == NULL) {
		return NULL;
	}
	noop_screen->oscreen = oscreen;
	screen = &noop_screen->pscreen;

	screen->destroy = noop_destroy_screen;
	screen->get_name = noop_get_name;
	screen->get_vendor = noop_get_vendor;
	screen->get_param = noop_get_param;
	screen->get_shader_param = noop_get_shader_param;
	screen->get_paramf = noop_get_paramf;
	screen->is_format_supported = noop_is_format_supported;
	screen->context_create = noop_create_context;
	screen->resource_create = noop_resource_create;
	screen->resource_from_handle = noop_resource_from_handle;
	screen->resource_get_handle = noop_resource_get_handle;
	screen->resource_destroy = noop_resource_destroy;
	screen->user_buffer_create = noop_user_buffer_create;
	screen->flush_frontbuffer = noop_flush_frontbuffer;

	return screen;
}