1 /**************************************************************************
2 *
3 * Copyright 2014 Advanced Micro Devices, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "util/u_tests.h"
29
30 #include "util/u_draw_quad.h"
31 #include "util/u_format.h"
32 #include "util/u_inlines.h"
33 #include "util/u_memory.h"
34 #include "util/u_simple_shaders.h"
35 #include "util/u_surface.h"
36 #include "util/u_string.h"
37 #include "util/u_tile.h"
38 #include "tgsi/tgsi_strings.h"
39 #include "tgsi/tgsi_text.h"
40 #include "cso_cache/cso_context.h"
41 #include <stdio.h>
42
43 #define TOLERANCE 0.01
44
45 static struct pipe_resource *
util_create_texture2d(struct pipe_screen * screen,unsigned width,unsigned height,enum pipe_format format)46 util_create_texture2d(struct pipe_screen *screen, unsigned width,
47 unsigned height, enum pipe_format format)
48 {
49 struct pipe_resource templ = {{0}};
50
51 templ.target = PIPE_TEXTURE_2D;
52 templ.width0 = width;
53 templ.height0 = height;
54 templ.depth0 = 1;
55 templ.array_size = 1;
56 templ.format = format;
57 templ.usage = PIPE_USAGE_DEFAULT;
58 templ.bind = PIPE_BIND_SAMPLER_VIEW |
59 (util_format_is_depth_or_stencil(format) ?
60 PIPE_BIND_DEPTH_STENCIL : PIPE_BIND_RENDER_TARGET);
61
62 return screen->resource_create(screen, &templ);
63 }
64
65 static void
util_set_framebuffer_cb0(struct cso_context * cso,struct pipe_context * ctx,struct pipe_resource * tex)66 util_set_framebuffer_cb0(struct cso_context *cso, struct pipe_context *ctx,
67 struct pipe_resource *tex)
68 {
69 struct pipe_surface templ = {{0}}, *surf;
70 struct pipe_framebuffer_state fb = {0};
71
72 templ.format = tex->format;
73 surf = ctx->create_surface(ctx, tex, &templ);
74
75 fb.width = tex->width0;
76 fb.height = tex->height0;
77 fb.cbufs[0] = surf;
78 fb.nr_cbufs = 1;
79
80 cso_set_framebuffer(cso, &fb);
81 pipe_surface_reference(&surf, NULL);
82 }
83
84 static void
util_set_blend_normal(struct cso_context * cso)85 util_set_blend_normal(struct cso_context *cso)
86 {
87 struct pipe_blend_state blend = {0};
88
89 blend.rt[0].colormask = PIPE_MASK_RGBA;
90 cso_set_blend(cso, &blend);
91 }
92
93 static void
util_set_dsa_disable(struct cso_context * cso)94 util_set_dsa_disable(struct cso_context *cso)
95 {
96 struct pipe_depth_stencil_alpha_state dsa = {{0}};
97
98 cso_set_depth_stencil_alpha(cso, &dsa);
99 }
100
101 static void
util_set_rasterizer_normal(struct cso_context * cso)102 util_set_rasterizer_normal(struct cso_context *cso)
103 {
104 struct pipe_rasterizer_state rs = {0};
105
106 rs.half_pixel_center = 1;
107 rs.bottom_edge_rule = 1;
108 rs.depth_clip = 1;
109
110 cso_set_rasterizer(cso, &rs);
111 }
112
113 static void
util_set_max_viewport(struct cso_context * cso,struct pipe_resource * tex)114 util_set_max_viewport(struct cso_context *cso, struct pipe_resource *tex)
115 {
116 struct pipe_viewport_state viewport;
117
118 viewport.scale[0] = 0.5f * tex->width0;
119 viewport.scale[1] = 0.5f * tex->height0;
120 viewport.scale[2] = 1.0f;
121 viewport.translate[0] = 0.5f * tex->width0;
122 viewport.translate[1] = 0.5f * tex->height0;
123 viewport.translate[2] = 0.0f;
124
125 cso_set_viewport(cso, &viewport);
126 }
127
128 static void
util_set_interleaved_vertex_elements(struct cso_context * cso,unsigned num_elements)129 util_set_interleaved_vertex_elements(struct cso_context *cso,
130 unsigned num_elements)
131 {
132 unsigned i;
133 struct pipe_vertex_element *velem =
134 calloc(1, num_elements * sizeof(struct pipe_vertex_element));
135
136 for (i = 0; i < num_elements; i++) {
137 velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
138 velem[i].src_offset = i * 16;
139 }
140
141 cso_set_vertex_elements(cso, num_elements, velem);
142 free(velem);
143 }
144
145 static void *
util_set_passthrough_vertex_shader(struct cso_context * cso,struct pipe_context * ctx,bool window_space)146 util_set_passthrough_vertex_shader(struct cso_context *cso,
147 struct pipe_context *ctx,
148 bool window_space)
149 {
150 static const uint vs_attribs[] = {
151 TGSI_SEMANTIC_POSITION,
152 TGSI_SEMANTIC_GENERIC
153 };
154 static const uint vs_indices[] = {0, 0};
155 void *vs;
156
157 vs = util_make_vertex_passthrough_shader(ctx, 2, vs_attribs, vs_indices,
158 window_space);
159 cso_set_vertex_shader_handle(cso, vs);
160 return vs;
161 }
162
163 static void
util_set_common_states_and_clear(struct cso_context * cso,struct pipe_context * ctx,struct pipe_resource * cb)164 util_set_common_states_and_clear(struct cso_context *cso, struct pipe_context *ctx,
165 struct pipe_resource *cb)
166 {
167 static const float clear_color[] = {0.1, 0.1, 0.1, 0.1};
168
169 util_set_framebuffer_cb0(cso, ctx, cb);
170 util_set_blend_normal(cso);
171 util_set_dsa_disable(cso);
172 util_set_rasterizer_normal(cso);
173 util_set_max_viewport(cso, cb);
174
175 ctx->clear(ctx, PIPE_CLEAR_COLOR0, (void*)clear_color, 0, 0);
176 }
177
178 static void
util_draw_fullscreen_quad(struct cso_context * cso)179 util_draw_fullscreen_quad(struct cso_context *cso)
180 {
181 static float vertices[] = {
182 -1, -1, 0, 1, 0, 0, 0, 0,
183 -1, 1, 0, 1, 0, 1, 0, 0,
184 1, 1, 0, 1, 1, 1, 0, 0,
185 1, -1, 0, 1, 1, 0, 0, 0
186 };
187 util_set_interleaved_vertex_elements(cso, 2);
188 util_draw_user_vertex_buffer(cso, vertices, PIPE_PRIM_QUADS, 4, 2);
189 }
190
191 /**
192 * Probe and test if the rectangle contains the expected color.
193 *
194 * If "num_expected_colors" > 1, at least one expected color must match
195 * the probed color. "expected" should be an array of 4*num_expected_colors
196 * floats.
197 */
198 static bool
util_probe_rect_rgba_multi(struct pipe_context * ctx,struct pipe_resource * tex,unsigned offx,unsigned offy,unsigned w,unsigned h,const float * expected,unsigned num_expected_colors)199 util_probe_rect_rgba_multi(struct pipe_context *ctx, struct pipe_resource *tex,
200 unsigned offx, unsigned offy, unsigned w,
201 unsigned h,
202 const float *expected,
203 unsigned num_expected_colors)
204 {
205 struct pipe_transfer *transfer;
206 void *map;
207 float *pixels = malloc(w * h * 4 * sizeof(float));
208 unsigned x,y,e,c;
209 bool pass = true;
210
211 map = pipe_transfer_map(ctx, tex, 0, 0, PIPE_TRANSFER_READ,
212 offx, offy, w, h, &transfer);
213 pipe_get_tile_rgba(transfer, map, 0, 0, w, h, pixels);
214 pipe_transfer_unmap(ctx, transfer);
215
216 for (e = 0; e < num_expected_colors; e++) {
217 for (y = 0; y < h; y++) {
218 for (x = 0; x < w; x++) {
219 float *probe = &pixels[(y*w + x)*4];
220
221 for (c = 0; c < 4; c++) {
222 if (fabs(probe[c] - expected[e*4+c]) >= TOLERANCE) {
223 if (e < num_expected_colors-1)
224 goto next_color; /* test the next expected color */
225
226 printf("Probe color at (%i,%i), ", offx+x, offy+y);
227 printf("Expected: %.3f, %.3f, %.3f, %.3f, ",
228 expected[e*4], expected[e*4+1],
229 expected[e*4+2], expected[e*4+3]);
230 printf("Got: %.3f, %.3f, %.3f, %.3f\n",
231 probe[0], probe[1], probe[2], probe[2]);
232 pass = false;
233 goto done;
234 }
235 }
236 }
237 }
238 break; /* this color was successful */
239
240 next_color:;
241 }
242 done:
243
244 free(pixels);
245 return pass;
246 }
247
248 static bool
util_probe_rect_rgba(struct pipe_context * ctx,struct pipe_resource * tex,unsigned offx,unsigned offy,unsigned w,unsigned h,const float * expected)249 util_probe_rect_rgba(struct pipe_context *ctx, struct pipe_resource *tex,
250 unsigned offx, unsigned offy, unsigned w, unsigned h,
251 const float *expected)
252 {
253 return util_probe_rect_rgba_multi(ctx, tex, offx, offy, w, h, expected, 1);
254 }
255
256 enum {
257 SKIP = -1,
258 FAIL = 0, /* also "false" */
259 PASS = 1 /* also "true" */
260 };
261
262 static void
util_report_result_helper(int status,const char * name,...)263 util_report_result_helper(int status, const char *name, ...)
264 {
265 char buf[256];
266 va_list ap;
267
268 va_start(ap, name);
269 util_vsnprintf(buf, sizeof(buf), name, ap);
270 va_end(ap);
271
272 printf("Test(%s) = %s\n", buf,
273 status == SKIP ? "skip" :
274 status == PASS ? "pass" : "fail");
275 }
276
277 #define util_report_result(status) util_report_result_helper(status, __func__)
278
279 /**
280 * Test TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION.
281 *
282 * The viewport state is set as usual, but it should have no effect.
283 * Clipping should also be disabled.
284 *
285 * POSITION.xyz should already be multiplied by 1/w and POSITION.w should
286 * contain 1/w. By setting w=0, we can test that POSITION.xyz isn't
287 * multiplied by 1/w (otherwise nothing would be rendered).
288 *
289 * TODO: Whether the value of POSITION.w is correctly interpreted as 1/w
290 * during perspective interpolation is not tested.
291 */
292 static void
tgsi_vs_window_space_position(struct pipe_context * ctx)293 tgsi_vs_window_space_position(struct pipe_context *ctx)
294 {
295 struct cso_context *cso;
296 struct pipe_resource *cb;
297 void *fs, *vs;
298 bool pass = true;
299 static const float red[] = {1, 0, 0, 1};
300
301 if (!ctx->screen->get_param(ctx->screen,
302 PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION)) {
303 util_report_result(SKIP);
304 return;
305 }
306
307 cso = cso_create_context(ctx);
308 cb = util_create_texture2d(ctx->screen, 256, 256,
309 PIPE_FORMAT_R8G8B8A8_UNORM);
310 util_set_common_states_and_clear(cso, ctx, cb);
311
312 /* Fragment shader. */
313 fs = util_make_fragment_passthrough_shader(ctx, TGSI_SEMANTIC_GENERIC,
314 TGSI_INTERPOLATE_LINEAR, TRUE);
315 cso_set_fragment_shader_handle(cso, fs);
316
317 /* Vertex shader. */
318 vs = util_set_passthrough_vertex_shader(cso, ctx, true);
319
320 /* Draw. */
321 {
322 static float vertices[] = {
323 0, 0, 0, 0, 1, 0, 0, 1,
324 0, 256, 0, 0, 1, 0, 0, 1,
325 256, 256, 0, 0, 1, 0, 0, 1,
326 256, 0, 0, 0, 1, 0, 0, 1,
327 };
328 util_set_interleaved_vertex_elements(cso, 2);
329 util_draw_user_vertex_buffer(cso, vertices, PIPE_PRIM_QUADS, 4, 2);
330 }
331
332 /* Probe pixels. */
333 pass = pass && util_probe_rect_rgba(ctx, cb, 0, 0,
334 cb->width0, cb->height0, red);
335
336 /* Cleanup. */
337 cso_destroy_context(cso);
338 ctx->delete_vs_state(ctx, vs);
339 ctx->delete_fs_state(ctx, fs);
340 pipe_resource_reference(&cb, NULL);
341
342 util_report_result(pass);
343 }
344
345 static void
null_sampler_view(struct pipe_context * ctx,unsigned tgsi_tex_target)346 null_sampler_view(struct pipe_context *ctx, unsigned tgsi_tex_target)
347 {
348 struct cso_context *cso;
349 struct pipe_resource *cb;
350 void *fs, *vs;
351 bool pass = true;
352 /* 2 expected colors: */
353 static const float expected_tex[] = {0, 0, 0, 1,
354 0, 0, 0, 0};
355 static const float expected_buf[] = {0, 0, 0, 0};
356 const float *expected = tgsi_tex_target == TGSI_TEXTURE_BUFFER ?
357 expected_buf : expected_tex;
358 unsigned num_expected = tgsi_tex_target == TGSI_TEXTURE_BUFFER ? 1 : 2;
359
360 if (tgsi_tex_target == TGSI_TEXTURE_BUFFER &&
361 !ctx->screen->get_param(ctx->screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS)) {
362 util_report_result_helper(SKIP, "%s: %s", __func__,
363 tgsi_texture_names[tgsi_tex_target]);
364 return;
365 }
366
367 cso = cso_create_context(ctx);
368 cb = util_create_texture2d(ctx->screen, 256, 256,
369 PIPE_FORMAT_R8G8B8A8_UNORM);
370 util_set_common_states_and_clear(cso, ctx, cb);
371
372 ctx->set_sampler_views(ctx, PIPE_SHADER_FRAGMENT, 0, 1, NULL);
373
374 /* Fragment shader. */
375 fs = util_make_fragment_tex_shader(ctx, tgsi_tex_target,
376 TGSI_INTERPOLATE_LINEAR,
377 TGSI_RETURN_TYPE_FLOAT,
378 TGSI_RETURN_TYPE_FLOAT);
379 cso_set_fragment_shader_handle(cso, fs);
380
381 /* Vertex shader. */
382 vs = util_set_passthrough_vertex_shader(cso, ctx, false);
383 util_draw_fullscreen_quad(cso);
384
385 /* Probe pixels. */
386 pass = pass && util_probe_rect_rgba_multi(ctx, cb, 0, 0,
387 cb->width0, cb->height0, expected,
388 num_expected);
389
390 /* Cleanup. */
391 cso_destroy_context(cso);
392 ctx->delete_vs_state(ctx, vs);
393 ctx->delete_fs_state(ctx, fs);
394 pipe_resource_reference(&cb, NULL);
395
396 util_report_result_helper(pass, "%s: %s", __func__,
397 tgsi_texture_names[tgsi_tex_target]);
398 }
399
400 static void
null_constant_buffer(struct pipe_context * ctx)401 null_constant_buffer(struct pipe_context *ctx)
402 {
403 struct cso_context *cso;
404 struct pipe_resource *cb;
405 void *fs, *vs;
406 bool pass = true;
407 static const float zero[] = {0, 0, 0, 0};
408
409 cso = cso_create_context(ctx);
410 cb = util_create_texture2d(ctx->screen, 256, 256,
411 PIPE_FORMAT_R8G8B8A8_UNORM);
412 util_set_common_states_and_clear(cso, ctx, cb);
413
414 ctx->set_constant_buffer(ctx, PIPE_SHADER_FRAGMENT, 0, NULL);
415
416 /* Fragment shader. */
417 {
418 static const char *text = /* I don't like ureg... */
419 "FRAG\n"
420 "DCL CONST[0]\n"
421 "DCL OUT[0], COLOR\n"
422
423 "MOV OUT[0], CONST[0]\n"
424 "END\n";
425 struct tgsi_token tokens[1000];
426 struct pipe_shader_state state;
427
428 if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
429 puts("Can't compile a fragment shader.");
430 util_report_result(FAIL);
431 return;
432 }
433 pipe_shader_state_from_tgsi(&state, tokens);
434 fs = ctx->create_fs_state(ctx, &state);
435 cso_set_fragment_shader_handle(cso, fs);
436 }
437
438 /* Vertex shader. */
439 vs = util_set_passthrough_vertex_shader(cso, ctx, false);
440 util_draw_fullscreen_quad(cso);
441
442 /* Probe pixels. */
443 pass = pass && util_probe_rect_rgba(ctx, cb, 0, 0, cb->width0,
444 cb->height0, zero);
445
446 /* Cleanup. */
447 cso_destroy_context(cso);
448 ctx->delete_vs_state(ctx, vs);
449 ctx->delete_fs_state(ctx, fs);
450 pipe_resource_reference(&cb, NULL);
451
452 util_report_result(pass);
453 }
454
455 static void
null_fragment_shader(struct pipe_context * ctx)456 null_fragment_shader(struct pipe_context *ctx)
457 {
458 struct cso_context *cso;
459 struct pipe_resource *cb;
460 void *vs;
461 struct pipe_rasterizer_state rs = {0};
462 struct pipe_query *query;
463 union pipe_query_result qresult;
464
465 cso = cso_create_context(ctx);
466 cb = util_create_texture2d(ctx->screen, 256, 256,
467 PIPE_FORMAT_R8G8B8A8_UNORM);
468 util_set_common_states_and_clear(cso, ctx, cb);
469
470 /* No rasterization. */
471 rs.rasterizer_discard = 1;
472 cso_set_rasterizer(cso, &rs);
473
474 vs = util_set_passthrough_vertex_shader(cso, ctx, false);
475
476 query = ctx->create_query(ctx, PIPE_QUERY_PRIMITIVES_GENERATED, 0);
477 ctx->begin_query(ctx, query);
478 util_draw_fullscreen_quad(cso);
479 ctx->end_query(ctx, query);
480 ctx->get_query_result(ctx, query, true, &qresult);
481
482 /* Cleanup. */
483 cso_destroy_context(cso);
484 ctx->delete_vs_state(ctx, vs);
485 ctx->destroy_query(ctx, query);
486 pipe_resource_reference(&cb, NULL);
487
488 /* Check PRIMITIVES_GENERATED. */
489 util_report_result(qresult.u64 == 2);
490 }
491
492 /**
493 * Run all tests. This should be run with a clean context after
494 * context_create.
495 */
496 void
util_run_tests(struct pipe_screen * screen)497 util_run_tests(struct pipe_screen *screen)
498 {
499 struct pipe_context *ctx = screen->context_create(screen, NULL, 0);
500
501 null_fragment_shader(ctx);
502 tgsi_vs_window_space_position(ctx);
503 null_sampler_view(ctx, TGSI_TEXTURE_2D);
504 null_sampler_view(ctx, TGSI_TEXTURE_BUFFER);
505 null_constant_buffer(ctx);
506
507 ctx->destroy(ctx);
508
509 puts("Done. Exiting..");
510 exit(0);
511 }
512