noop_pipe.c 12.9 KB
Newer Older
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
/*
 * 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"
33
34

DEBUG_GET_ONCE_BOOL_OPTION(noop, "GALLIUM_NOOP", FALSE)
35
36
37

void noop_init_state_functions(struct pipe_context *ctx);

38
39
40
41
42
struct noop_pipe_screen {
	struct pipe_screen	pscreen;
	struct pipe_screen	*oscreen;
};

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
/*
 * 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, void *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 unsigned noop_is_resource_referenced(struct pipe_context *pipe,
						struct pipe_resource *resource,
92
						unsigned level, int layer)
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
{
	return PIPE_UNREFERENCED;
}

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;
}

120
static struct pipe_resource *noop_resource_from_handle(struct pipe_screen *screen,
121
							const struct pipe_resource *templ,
122
							struct winsys_handle *handle)
123
{
124
125
126
	struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
	struct pipe_screen *oscreen = noop_screen->oscreen;
	struct pipe_resource *result;
127
	struct pipe_resource *noop_resource;
128

129
130
131
132
	result = oscreen->resource_from_handle(oscreen, templ, handle);
	noop_resource = noop_resource_create(screen, result);
	pipe_resource_reference(&result, NULL);
	return noop_resource;
133
134
135
136
137
138
}

static boolean noop_resource_get_handle(struct pipe_screen *screen,
					struct pipe_resource *resource,
					struct winsys_handle *handle)
{
139
	return FALSE;
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
}

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,
174
						unsigned level,
175
176
177
178
179
180
181
182
183
						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);
184
	transfer->level = level;
185
186
187
	transfer->usage = usage;
	transfer->box = *box;
	transfer->stride = 1;
188
	transfer->layer_stride = 1;
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
	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,
220
					unsigned level,
221
222
223
224
					unsigned usage,
					const struct pipe_box *box,
					const void *data,
					unsigned stride,
225
					unsigned layer_stride)
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
{
}


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

static void noop_clear_render_target(struct pipe_context *ctx,
				     struct pipe_surface *dst,
				     const float *rgba,
				     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,
258
				      unsigned dst_level,
259
260
				      unsigned dstx, unsigned dsty, unsigned dstz,
				      struct pipe_resource *src,
261
262
				      unsigned src_level,
				      const struct pipe_box *src_box)
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
{
}


/*
 * context
 */
static void noop_flush(struct pipe_context *ctx, unsigned flags,
			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->winsys = screen->winsys;
	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;
	ctx->is_resource_referenced = noop_is_resource_referenced;
	noop_init_state_functions(ctx);

	return ctx;
}


/*
 * pipe_screen
 */
static void noop_flush_frontbuffer(struct pipe_screen *_screen,
317
318
319
				   struct pipe_resource *resource,
				   unsigned level, unsigned layer,
				   void *context_private)
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
{
}

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)
{
	switch (param) {
	/* Supported features (boolean caps). */
	case PIPE_CAP_NPOT_TEXTURES:
	case PIPE_CAP_TWO_SIDED_STENCIL:
	case PIPE_CAP_GLSL:
	case PIPE_CAP_OCCLUSION_QUERY:
Dave Airlie's avatar
Dave Airlie committed
341
342
	case PIPE_CAP_POINT_SPRITE:
	case PIPE_CAP_ANISOTROPIC_FILTER:
343
344
	case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
	case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
Dave Airlie's avatar
Dave Airlie committed
345
346
	case PIPE_CAP_TEXTURE_SHADOW_MAP:
	case PIPE_CAP_TEXTURE_SWIZZLE:
347
	case PIPE_CAP_BLEND_EQUATION_SEPARATE:
Dave Airlie's avatar
Dave Airlie committed
348
349
350
351

	  return 1;
	case PIPE_CAP_DUAL_SOURCE_BLEND:

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
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
	case PIPE_CAP_SM3:
	case PIPE_CAP_INDEP_BLEND_ENABLE:
	case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
	case PIPE_CAP_DEPTH_CLAMP:
	case PIPE_CAP_SHADER_STENCIL_EXPORT:
	case PIPE_CAP_TIMER_QUERY:
	case PIPE_CAP_STREAM_OUTPUT:
	case PIPE_CAP_PRIMITIVE_RESTART:
	case PIPE_CAP_INDEP_BLEND_FUNC:
		return 0;

	/* Texturing. */
	case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
	case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
	case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
		return 14;
	case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
		return 16;
	case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
	case PIPE_CAP_MAX_COMBINED_SAMPLERS:
		return 16;

	/* Render targets. */
	case PIPE_CAP_MAX_RENDER_TARGETS:
		return 8;

	/* Fragment coordinate conventions. */
	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
		return 1;
	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
		return 0;

	default:
		return 0;
	}
}

static float noop_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param)
{
	switch (param) {
	case PIPE_CAP_MAX_LINE_WIDTH:
	case PIPE_CAP_MAX_LINE_WIDTH_AA:
	case PIPE_CAP_MAX_POINT_WIDTH:
	case PIPE_CAP_MAX_POINT_WIDTH_AA:
		return 8192.0f;
	case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
		return 16.0f;
	case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
		return 16.0f;
	default:
		return 0.0f;
	}
}

static int noop_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
{
	switch(shader)
	{
	case PIPE_SHADER_FRAGMENT:
	case PIPE_SHADER_VERTEX:
	case PIPE_SHADER_GEOMETRY:
		break;
	default:
		return 0;
	}

	switch (param) {
	case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
	case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
	case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
	case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
		return 16384;
	case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
		return 8;
	case PIPE_SHADER_CAP_MAX_INPUTS:
		return 16;
	case PIPE_SHADER_CAP_MAX_TEMPS:
		return 256;
	case PIPE_SHADER_CAP_MAX_ADDRS:
		return 1;
	case PIPE_SHADER_CAP_MAX_CONSTS:
		return 256;
	case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
		return 1;
	case PIPE_SHADER_CAP_MAX_PREDS:
		return 0;
	case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
		return 1;
	case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
	case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
	case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
	case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
		return 1;
	default:
		return 0;
	}
}

static boolean noop_is_format_supported(struct pipe_screen* screen,
					enum pipe_format format,
					enum pipe_texture_target target,
					unsigned sample_count,
					unsigned usage,
					unsigned geom_flags)
{
	return true;
}

static void noop_destroy_screen(struct pipe_screen *screen)
{
464
465
466
467
	struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
	struct pipe_screen *oscreen = noop_screen->oscreen;

	oscreen->destroy(oscreen);
468
469
470
	FREE(screen);
}

471
struct pipe_screen *noop_screen_create(struct pipe_screen *oscreen)
472
{
473
	struct noop_pipe_screen *noop_screen;
474
475
	struct pipe_screen *screen;

476
477
478
479
480
481
	if (!debug_get_option_noop()) {
		return oscreen;
	}

	noop_screen = CALLOC_STRUCT(noop_pipe_screen);
	if (noop_screen == NULL) {
482
483
		return NULL;
	}
484
485
	noop_screen->oscreen = oscreen;
	screen = &noop_screen->pscreen;
486

487
	screen->winsys = oscreen->winsys;
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
	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;
}