This test breaks build for compilers that don't default to C++11+ for cpp sources.
https://travis-ci.org/jvesely/piglit/jobs/442796343 Jan On Thu, Sep 13, 2018 at 2:11 PM Nicolai Hähnle <nhaeh...@gmail.com> wrote: > From: Nicolai Hähnle <nicolai.haeh...@amd.com> > > Test extremes of GS amplification under tessellation. > --- > tests/opengl.py | 1 + > .../arb_tessellation_shader/CMakeLists.gl.txt | 1 + > .../tes-gs-max-output.cpp | 817 ++++++++++++++++++ > 3 files changed, 819 insertions(+) > create mode 100644 > tests/spec/arb_tessellation_shader/tes-gs-max-output.cpp > > diff --git a/tests/opengl.py b/tests/opengl.py > index 903a95809..3cc25c99c 100644 > --- a/tests/opengl.py > +++ b/tests/opengl.py > @@ -1524,20 +1524,21 @@ with profile.test_list.group_manager( > g(['arb_tessellation_shader-immediate-mode-draw-patches']) > g(['arb_tessellation_shader-invalid-get-program-params']) > g(['arb_tessellation_shader-invalid-patch-vertices-range']) > g(['arb_tessellation_shader-invalid-primitive']) > g(['built-in-constants', > os.path.join('spec', 'arb_tessellation_shader', > 'minimum-maximums.txt')], > 'built-in-constants', > override_class=BuiltInConstantsTest) > g(['arb_tessellation_shader-large-uniforms']) > g(['arb_tessellation_shader-layout-mismatch']) > + g(['arb_tessellation_shader-tes-gs-max-output', '-small', '-scan', > '1', '50']) > > # Group ARB_texture_multisample > with profile.test_list.group_manager( > PiglitGLTest, grouptools.join('spec', 'ARB_texture_multisample')) > as g: > g(['arb_texture_multisample-large-float-texture'], > 'large-float-texture', > run_concurrent=False) > g(['arb_texture_multisample-large-float-texture', '--array'], > 'large-float-texture-array', run_concurrent=False) > g(['arb_texture_multisample-large-float-texture', '--fp16'], > 'large-float-texture-fp16', run_concurrent=False) > diff --git a/tests/spec/arb_tessellation_shader/CMakeLists.gl.txt > b/tests/spec/arb_tessellation_shader/CMakeLists.gl.txt > index d70b00f3f..058a1bc49 100644 > --- a/tests/spec/arb_tessellation_shader/CMakeLists.gl.txt > +++ b/tests/spec/arb_tessellation_shader/CMakeLists.gl.txt > @@ -11,12 +11,13 @@ link_libraries ( > > piglit_add_executable (arb_tessellation_shader-get-tcs-params > get-tcs-params.c) > piglit_add_executable (arb_tessellation_shader-get-tes-params > get-tes-params.c) > piglit_add_executable > (arb_tessellation_shader-immediate-mode-draw-patches > immediate-mode-draw-patches.c) > piglit_add_executable (arb_tessellation_shader-invalid-get-program-params > invalid-get-program-params.c) > piglit_add_executable > (arb_tessellation_shader-invalid-patch-vertices-range > invalid-patch-vertices-range.c) > piglit_add_executable (arb_tessellation_shader-invalid-primitive > invalid-primitive.c) > piglit_add_executable (arb_tessellation_shader-minmax minmax.c) > piglit_add_executable (arb_tessellation_shader-large-uniforms > large-uniforms.c) > piglit_add_executable (arb_tessellation_shader-layout-mismatch > layout-mismatch.c) > +piglit_add_executable (arb_tessellation_shader-tes-gs-max-output > tes-gs-max-output.cpp) > > # vim: ft=cmake: > diff --git a/tests/spec/arb_tessellation_shader/tes-gs-max-output.cpp > b/tests/spec/arb_tessellation_shader/tes-gs-max-output.cpp > new file mode 100644 > index 000000000..de0d2daf1 > --- /dev/null > +++ b/tests/spec/arb_tessellation_shader/tes-gs-max-output.cpp > @@ -0,0 +1,817 @@ > +/* > + * Copyright (c) 2018 Advanced Micro Devices > + * > + * 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 > + * the rights to use, copy, modify, merge, publish, distribute, > sublicense, > + * 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 NONINFRINGEMENT. IN NO EVENT > SHALL > + * THE AUTHORS OR COPYRIGHT HOLDERS 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. > + */ > + > +/** > + * \file tes-gs-max-output.cpp > + * > + * Stress the limits of what tessellation + geometry shaders can output > using > + * generic shaders with points as input and output primitives, allowing > + * arbitrary: > + * - number of input instances (instanced draws) > + * - number of input patches per instance > + * - (integer) tessellation factors > + * - number of invocations (GS instances) > + * - number of output vertices per invocation > + * - number of output components per vertex > + * > + * Verification works by rendering points and writing to an SSBO from the > + * fragment shader. > + */ > + > +#include "piglit-util-gl.h" > + > +#include <algorithm> > +#include <map> > +#include <set> > +#include <vector> > + > +#define WINDOW_SIZE 256 > + > +PIGLIT_GL_TEST_CONFIG_BEGIN > + > + config.supports_gl_compat_version = 32; > + config.supports_gl_core_version = 32; > + config.window_width = WINDOW_SIZE; > + config.window_height = WINDOW_SIZE; > + config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | > PIGLIT_GL_VISUAL_RGBA; > + config.khr_no_error_support = PIGLIT_NO_ERRORS; > + > +PIGLIT_GL_TEST_CONFIG_END > + > +#define PASTE(x) #x > +#define STR(x) PASTE(x) > + > +struct testcase { > + unsigned num_instances; /* draw instances */ > + unsigned num_patches; /* draw size / count */ > + unsigned tessfactor_u; > + unsigned tessfactor_v; > + unsigned num_invocations; /* GS invocations / instances */ > + unsigned num_outputs; /* # vertex ouput per GS invocation */ > + unsigned num_extra_components; /* # extra components per GS output > vertex */ > + > + bool operator<(const testcase &o) const { > + return std::make_tuple(num_instances, num_patches, > tessfactor_u, > + tessfactor_v, num_invocations, > num_outputs, > + num_extra_components) > + < > + std::make_tuple(o.num_instances, o.num_patches, > o.tessfactor_u, > + o.tessfactor_v, o.num_invocations, > o.num_outputs, > + o.num_extra_components); > + } > +}; > + > +struct fragmentshaderkey { > + unsigned num_extra_components; > + > + bool operator<(const fragmentshaderkey &o) const { > + return num_extra_components < o.num_extra_components; > + } > +}; > + > +struct geometryshaderkey { > + unsigned num_invocations; > + unsigned num_outputs; > + unsigned num_extra_components; > + > + bool operator<(const geometryshaderkey &o) const { > + if (num_invocations < o.num_invocations) > + return true; > + if (num_invocations > o.num_invocations) > + return false; > + if (num_outputs < o.num_outputs) > + return true; > + if (num_outputs > o.num_outputs) > + return false; > + return num_extra_components < o.num_extra_components; > + } > +}; > + > +static std::map<fragmentshaderkey, GLuint> fragmentshaders; > +static std::map<geometryshaderkey, GLuint> testprograms; > + > +static const struct testcase default_testcase = { > + .num_instances = 1, > + .num_patches = 1, > + .tessfactor_u = 1, > + .tessfactor_v = 1, > + .num_invocations = 1, > + .num_outputs = 1, > + .num_extra_components = 0, > +}; > + > +static int32_t *buffer_copy; > + > +static const unsigned max_final_points = 2 * 1024 * 1024; /* requires 16 > MiB buffer */ > +static bool small = false; > +static GLuint vs_shader; > +static GLuint tcs_shader; > +static GLuint tes_shader; > +static GLuint vao; > +static GLuint ssbo; > +static std::vector<testcase> testcases; > +static std::set<testcase> testcases_set; > +static GLuint max_tessfactor; > +static GLuint max_gs_invocations; > +static GLuint max_gs_out_vertices; > +static GLuint max_gs_total_out_components; > +static GLuint max_gs_out_components; > +static unsigned max_gs_out_vertices_real; > + > +static const char vs_text[] = > + "#version 150\n" > + "\n" > + "uniform int u_verts_per_instance;\n" > + "\n" > + "out int vs_tcs_id;\n" > + "\n" > + "void main() {\n" > + " vs_tcs_id = gl_InstanceID * u_verts_per_instance + > gl_VertexID;\n" > + "}\n"; > + > +static const char tcs_text[] = > + "#version 150\n" > + "#extension GL_ARB_tessellation_shader : require\n" > + "layout(vertices = 1) out;\n" > + "\n" > + "in int vs_tcs_id[];\n" > + "\n" > + "out int tcs_tes_id[];\n" > + "\n" > + "uniform int u_tessfactor_u;\n" > + "uniform int u_tessfactor_v;\n" > + "\n" > + "void main() {\n" > + " tcs_tes_id[gl_InvocationID] = vs_tcs_id[gl_InvocationID];\n" > + " gl_TessLevelOuter[0] = u_tessfactor_v;\n" > + " gl_TessLevelOuter[1] = u_tessfactor_u;\n" > + "}\n"; > + > +static const char tes_text[] = > + "#version 150\n" > + "#extension GL_ARB_tessellation_shader : require\n" > + "layout(isolines, equal_spacing) in;\n" > + "\n" > + "in int tcs_tes_id[];\n" > + "\n" > + "out int tes_gs_id;\n" > + "\n" > + "void main() {\n" > + " tes_gs_id = tcs_tes_id[0];\n" > + " gl_Position.x = gl_TessCoord[0];\n" > + " gl_Position.y = gl_TessCoord[1];\n" > + "}\n"; > + > +/* Those numbers really don't matter much for what we're trying to do > here. */ > +#define GEN_SEQUENCE \ > + "int seq_next(int x) {\n" \ > + " x = (x + 1) * 709900053;\n" \ > + " x = x ^ (x >> 17);\n" \ > + " return x;\n" \ > + "}\n" > + > +static const char gs_text[] = > + "#version 150\n" > + "#extension GL_ARB_gpu_shader5 : require\n" > + "\n" > + "#define NUM_INVOCATIONS %d\n" > + "#define NUM_OUT_VERTICES %d\n" > + "#define NUM_EXTRA_COMPONENTS %d\n" > + "\n" > + "layout(lines, invocations = NUM_INVOCATIONS) in;\n" > + "layout(points, max_vertices = NUM_OUT_VERTICES) out;\n" > + "\n" > + "uniform int u_tessfactor_u;\n" > + "uniform int u_tessfactor_v;\n" > + "\n" > + "in int tes_gs_id[];\n" > + "\n" > + "flat out int gs_ps_data[1 + NUM_EXTRA_COMPONENTS];\n" > + "\n" > + GEN_SEQUENCE > + "\n" > + "void main() {\n" > + " int in_id = tes_gs_id[0] * u_tessfactor_u * u_tessfactor_v;\n" > + " float v = gl_in[0].gl_Position.y;\n" > + " in_id += u_tessfactor_u * int(v * u_tessfactor_v + 0.5);\n" > + " float u = min(gl_in[0].gl_Position.x, > gl_in[1].gl_Position.x);\n" > + " in_id += int(u * u_tessfactor_u + 0.5);\n" > + "\n" > + " for (int i = 0; i < NUM_OUT_VERTICES; ++i) {\n" > + " uint id = (in_id * NUM_INVOCATIONS + gl_InvocationID) * > NUM_OUT_VERTICES + i;\n" > + " uint x = id %% " STR(WINDOW_SIZE) "u;\n" > + " uint y = (id / " STR(WINDOW_SIZE) "u) %% " STR(WINDOW_SIZE) > "u;\n" > + " gl_Position.x = (float(x) + 0.5) / " STR(WINDOW_SIZE) " * 2.0 > - 1.0;\n" > + " gl_Position.y = (float(y) + 0.5) / " STR(WINDOW_SIZE) " * 2.0 > - 1.0;\n" > + " gl_Position.z = 0.0;\n" > + " gl_Position.w = 1.0;\n" > + "\n" > + " int val = int(id);\n" > + " for (int j = 0; j <= NUM_EXTRA_COMPONENTS; ++j) {\n" > + " gs_ps_data[j] = val;\n" > + " val = seq_next(val);\n" > + " }\n" > + "\n" > + " EmitVertex();\n" > + " }\n" > + "}\n"; > + > +static const char fs_text[] = > + "#version 150\n" > + "#extension GL_ARB_shader_storage_buffer_object : require\n" > + "\n" > + "#define NUM_EXTRA_COMPONENTS %d\n" > + "\n" > + "flat in int gs_ps_data[1 + NUM_EXTRA_COMPONENTS];\n" > + "out vec4 out_color;\n" > + "\n" > + "layout(std430, binding = 0) buffer SSBO {\n" > + " ivec2 data[];\n" > + "} ssbo;\n" > + "\n" > + GEN_SEQUENCE > + "\n" > + "void main() {\n" > + " int id = gs_ps_data[0];\n" > + " int screen_id = int(gl_FragCoord.y) * " STR(WINDOW_SIZE) " + > int(gl_FragCoord.x);\n" > + " if (screen_id != id %% (" STR(WINDOW_SIZE * WINDOW_SIZE) ")) > {\n" > + " ssbo.data[id].x = 1000;\n" > + " ssbo.data[id].y = screen_id;\n" > + " out_color = vec4(0.1, 0, 0, 1);\n" > + " return;\n" > + " }\n" > + "\n" > + " int val = id;\n" > + " for (int j = 0; j <= NUM_EXTRA_COMPONENTS; ++j) {\n" > + " if (val != gs_ps_data[j]) {\n" > + " ssbo.data[id].x = 2000 + j;\n" > + " ssbo.data[id].y = gs_ps_data[j];\n" > + " out_color = vec4(0, 0.1, 0, 1);\n" > + " return;\n" > + " }\n" > + " val = seq_next(val);\n" > + " }\n" > + "\n" > + " ssbo.data[id].x = 1;\n" > + " out_color = vec4(0, 0, 0, 1);\n" > + "}\n"; > + > +static void > +print_testcase(const struct testcase *tc) > +{ > + printf("Case: instances = %u patches = %u tessfactor = %u,%u > invocations = %u " > + "outputs = %u extra_components = %u\n", > + tc->num_instances, tc->num_patches, tc->tessfactor_u, > tc->tessfactor_v, > + tc->num_invocations, tc->num_outputs, > tc->num_extra_components); > +} > + > +static void > +add_testcase(const struct testcase *tc) > +{ > + if (!testcases_set.insert(*tc).second) > + return; > + > + if (tc->num_instances > 64 * 1024 || > + tc->num_patches > 64 * 1024 || > + tc->tessfactor_u > 64 * 1024 || > + tc->tessfactor_v > 64 * 1024 || > + tc->num_invocations > 64 * 1024 || > + tc->num_outputs > 64 * 1024 || > + tc->num_extra_components > 64 * 1024) { > + fprintf(stderr, "Excessive test case size. Are you > sure?\n"); > + print_testcase(tc); > + exit(1); > + } > + > + /* Multiple separate multiplies to avoid integer wraparound */ > + if ((uint64_t)tc->num_instances * tc->num_patches * > tc->tessfactor_u > max_final_points || > + (uint64_t)tc->tessfactor_v * tc->num_invocations * > tc->num_outputs > max_final_points || > + (uint64_t)tc->num_instances * tc->num_patches * > tc->tessfactor_u * > + tc->tessfactor_v * tc->num_invocations * tc->num_outputs > > max_final_points) { > + fprintf(stderr, "Test case has more than %u final > points.\n", max_final_points); > + print_testcase(tc); > + exit(1); > + } > + > + /* Check against implementation-defined limits. */ > + if (tc->tessfactor_u > max_tessfactor || tc->tessfactor_v > > max_tessfactor) { > + fprintf(stderr, "Tessellation factor too high (max: %u)\n", > + max_tessfactor); > + print_testcase(tc); > + exit(1); > + } > + if (tc->num_outputs > max_gs_out_vertices) { > + fprintf(stderr, "Too many output vertices (max: %d)\n", > + max_gs_out_vertices); > + print_testcase(tc); > + exit(1); > + } > + if (tc->num_outputs * (5 + tc->num_extra_components) > > max_gs_total_out_components) { > + fprintf(stderr, "Too many output components (max: %d)\n", > + max_gs_total_out_components); > + print_testcase(tc); > + exit(1); > + } > + if (tc->num_invocations > max_gs_invocations) { > + fprintf(stderr, "Too many GS invocations (max: %d)\n", > + max_gs_invocations); > + print_testcase(tc); > + exit(1); > + } > + > + /* Compile GS shader and link program */ > + geometryshaderkey gskey; > + gskey.num_invocations = tc->num_invocations; > + gskey.num_outputs = tc->num_outputs; > + gskey.num_extra_components = tc->num_extra_components; > + if (testprograms.find(gskey) == testprograms.end()) { > + char *text; > + > + fragmentshaderkey fskey; > + fskey.num_extra_components = tc->num_extra_components; > + auto fsit = fragmentshaders.find(fskey); > + if (fsit == fragmentshaders.end()) { > + if (asprintf(&text, fs_text, > tc->num_extra_components) < 0) > + abort(); > + GLuint fs_shader = > + > piglit_compile_shader_text(GL_FRAGMENT_SHADER, text); > + free(text); > + > + fsit = > fragmentshaders.insert(std::make_pair(fskey, fs_shader)).first; > + } > + > + if (asprintf(&text, gs_text, tc->num_invocations, > tc->num_outputs, > + tc->num_extra_components) < 0) > + abort(); > + GLuint gs_shader = > + piglit_compile_shader_text(GL_GEOMETRY_SHADER, > text); > + free(text); > + > + GLuint prog = glCreateProgram(); > + glAttachShader(prog, vs_shader); > + glAttachShader(prog, tcs_shader); > + glAttachShader(prog, tes_shader); > + glAttachShader(prog, gs_shader); > + glAttachShader(prog, fsit->second); > + glLinkProgram(prog); > + if (!piglit_link_check_status(prog)) > + piglit_report_result(PIGLIT_FAIL); > + > + glDeleteShader(gs_shader); > + > + testprograms.insert(std::make_pair(gskey, prog)); > + } > + > + testcases.push_back(*tc); > +} > + > +static bool > +run_testcase(const struct testcase *tc) > +{ > + unsigned final_points = tc->num_instances * tc->num_patches * > tc->tessfactor_u * > + tc->tessfactor_v * tc->num_invocations * > tc->num_outputs; > + unsigned bufsize = 2 * sizeof(int32_t) * final_points; > + > + print_testcase(tc); > + > + glClearColor(0, 0, 0, 1); > + glClear(GL_COLOR_BUFFER_BIT); > + > + geometryshaderkey gskey; > + gskey.num_invocations = tc->num_invocations; > + gskey.num_outputs = tc->num_outputs; > + gskey.num_extra_components = tc->num_extra_components; > + auto progit = testprograms.find(gskey); > + assert(progit != testprograms.end()); > + > + glUseProgram(progit->second); > + glPatchParameteri(GL_PATCH_VERTICES, 1); > + glUniform1i(glGetUniformLocation(progit->second, "u_tessfactor_u"), > + tc->tessfactor_u); > + glUniform1i(glGetUniformLocation(progit->second, "u_tessfactor_v"), > + tc->tessfactor_v); > + glUniform1i(glGetUniformLocation(progit->second, > "u_verts_per_instance"), > + tc->num_patches); > + > + glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, ssbo); > + > + memset(buffer_copy, 0, bufsize); > + glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, bufsize, buffer_copy); > + > + glEnable(GL_BLEND); > + glBlendFunc(GL_ONE, GL_ONE); > + > + glDrawArraysInstanced(GL_PATCHES, 0, tc->num_patches, > tc->num_instances); > + > + glDisable(GL_BLEND); > + > + if (!piglit_check_gl_error(GL_NO_ERROR)) > + return false; > + > + static const float expected[] = { 0, 0, 0, 1 }; > + bool ok = true; > + > + if (!piglit_probe_rect_rgba(0, 0, WINDOW_SIZE, WINDOW_SIZE, > expected)) > + ok = false; > + > + glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, bufsize, > buffer_copy); > + > + for (unsigned i = 0; i < final_points; ++i) { > + if (buffer_copy[2 * i] != 1) { > + printf("Error @ %d: %d %d\n", i, > + buffer_copy[2 * i], buffer_copy[2 * i + 1]); > + ok = false; > + } > + } > + > + return ok; > +} > + > + > +static void > +generate_testcases_max2(const testcase &tc, bool explicit_instances, bool > explicit_patches) > +{ > + unsigned amplify = tc.tessfactor_u * tc.tessfactor_v * > tc.num_invocations * tc.num_outputs; > + unsigned target_in = max_final_points / amplify; > + > + if (small) > + target_in = MIN2(4, target_in); > + > + if (!explicit_instances) { > + testcase tc1 = tc; > + tc1.num_instances = MAX2(1, target_in / tc1.num_patches); > + add_testcase(&tc1); > + } > + > + if (!explicit_patches) { > + testcase tc1 = tc; > + tc1.num_patches = MAX2(1, target_in / tc1.num_instances); > + add_testcase(&tc1); > + } > + > + if (!explicit_instances && !explicit_patches) { > + testcase tc1 = tc; > + tc1.num_instances = MAX2(1, (unsigned)sqrt(target_in)); > + tc1.num_patches = MAX2(1, target_in / tc1.num_instances); > + add_testcase(&tc1); > + } > + > + if (explicit_instances && explicit_patches) > + add_testcase(&tc); > +} > + > +static void > +generate_testcases_max1(const testcase &tc, bool explicit_instances, bool > explicit_patches, > + bool explicit_tessfactor_u, bool > explicit_tessfactor_v, > + unsigned tess_out_max) > +{ > + if (!explicit_tessfactor_u) { > + testcase tc1 = tc; > + tc1.tessfactor_u = MIN2(MAX2(1, tess_out_max / > tc1.tessfactor_v), > + max_tessfactor); > + generate_testcases_max2(tc1, explicit_instances, > explicit_patches); > + } > + > + if (!explicit_tessfactor_v) { > + testcase tc1 = tc; > + tc1.tessfactor_v = MIN2(MAX2(1, tess_out_max / > tc1.tessfactor_u), > + max_tessfactor); > + generate_testcases_max2(tc1, explicit_instances, > explicit_patches); > + } > + > + if (!explicit_tessfactor_u && !explicit_tessfactor_v) { > + testcase tc1 = tc; > + tc1.tessfactor_u = MIN2(MAX2(1, > (unsigned)sqrt(tess_out_max)), > + max_tessfactor); > + tc1.tessfactor_v = MIN2(MAX2(1, tess_out_max / > tc1.tessfactor_u), > + max_tessfactor); > + generate_testcases_max2(tc1, explicit_instances, > explicit_patches); > + } > + > + if (explicit_tessfactor_u && explicit_tessfactor_v) > + generate_testcases_max2(tc, explicit_instances, > explicit_patches); > +} > + > +static void > +generate_testcases_max(const testcase &tc, bool explicit_instances, bool > explicit_patches, > + bool explicit_tessfactor_u, bool > explicit_tessfactor_v) > +{ > + unsigned amplify = tc.num_invocations * tc.num_outputs; > + unsigned tess_out_max = max_final_points / amplify; > + > + if (small) { > + generate_testcases_max1(tc, explicit_instances, > explicit_patches, > + explicit_tessfactor_u, > explicit_tessfactor_v, > + MIN2(4, tess_out_max)); > + } else { > + generate_testcases_max1(tc, explicit_instances, > explicit_patches, > + explicit_tessfactor_u, > explicit_tessfactor_v, > + tess_out_max); > + while (tess_out_max > 4) { > + tess_out_max = sqrt(tess_out_max); > + generate_testcases_max1(tc, explicit_instances, > explicit_patches, > + explicit_tessfactor_u, > explicit_tessfactor_v, > + tess_out_max); > + } > + } > +} > + > +static float > +rand_subdivide(int partitions) > +{ > + double x = 1.0; > + > + for (int i = 1; i < partitions; ++i) > + x = std::min(x, (double)rand() / ((double)RAND_MAX + 1)); > + > + return x; > +} > + > +void > +piglit_init(int argc, char **argv) > +{ > + bool explicit_instances = false; > + bool explicit_patches = false; > + bool explicit_tessfactor_u = false; > + bool explicit_tessfactor_v = false; > + bool explicit_invocations = false; > + bool explicit_outputs = false; > + bool explicit_components = false; > + bool scan_mode = false; > + unsigned scan_seed = 0; > + unsigned scan_count = 0; > + struct testcase explicit_testcase; > + > + piglit_require_extension("GL_ARB_tessellation_shader"); > + piglit_require_extension("GL_ARB_shader_storage_buffer_object"); > + > + memcpy(&explicit_testcase, &default_testcase, > sizeof(explicit_testcase)); > + > + int i; > + for (i = 1; i < argc; ++i) { > + if (!strcmp(argv[i], "-small")) { > + small = true; > + } else { > + if (i + 1 >= argc) > + break; > + > + if (!strcmp(argv[i], "-instances")) { > + explicit_testcase.num_instances = > atoi(argv[i + 1]); > + explicit_instances = true; > + i++; > + } else if (!strcmp(argv[i], "-patches")) { > + explicit_testcase.num_patches = > atoi(argv[i + 1]); > + explicit_patches = true; > + i++; > + } else if (!strcmp(argv[i], "-tessfactor_u")) { > + explicit_testcase.tessfactor_u = > atoi(argv[i + 1]); > + explicit_tessfactor_u = true; > + i++; > + } else if (!strcmp(argv[i], "-tessfactor_v")) { > + explicit_testcase.tessfactor_v = > atoi(argv[i + 1]); > + explicit_tessfactor_v = true; > + i++; > + } else if (!strcmp(argv[i], "-invocations")) { > + explicit_testcase.num_invocations = > atoi(argv[i + 1]); > + explicit_invocations = true; > + i++; > + } else if (!strcmp(argv[i], "-outputs")) { > + explicit_testcase.num_outputs = > atoi(argv[i + 1]); > + explicit_outputs = true; > + i++; > + } else if (!strcmp(argv[i], "-components")) { > + explicit_testcase.num_extra_components = > atoi(argv[i + 1]); > + explicit_components = true; > + i++; > + } else { > + if (i + 2 >= argc) > + break; > + > + if (!strcmp(argv[i], "-scan")) { > + scan_seed = atoi(argv[i + 1]); > + scan_count = atoi(argv[i + 2]); > + scan_mode = true; > + i += 2; > + } else > + break; > + } > + } > + } > + if (i < argc) { > + fprintf(stderr, "Unknown argument or too few params: > %s\n", argv[i]); > + exit(1); > + } > + > + /* Various GL objects needed by the test */ > + vs_shader = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text); > + if (!piglit_check_gl_error(GL_NO_ERROR)) > + piglit_report_result(PIGLIT_FAIL); > + > + tcs_shader = piglit_compile_shader_text(GL_TESS_CONTROL_SHADER, > tcs_text); > + if (!piglit_check_gl_error(GL_NO_ERROR)) > + piglit_report_result(PIGLIT_FAIL); > + > + tes_shader = piglit_compile_shader_text(GL_TESS_EVALUATION_SHADER, > tes_text); > + if (!piglit_check_gl_error(GL_NO_ERROR)) > + piglit_report_result(PIGLIT_FAIL); > + > + glGenVertexArrays(1, &vao); > + glBindVertexArray(vao); > + > + glGenBuffers(1, &ssbo); > + glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo); > + glBufferData(GL_SHADER_STORAGE_BUFFER, max_final_points * 8, NULL, > GL_DYNAMIC_READ); > + > + buffer_copy = (int32_t *)calloc(2 * sizeof(int32_t), > max_final_points); > + > + glGetIntegerv(GL_MAX_TESS_GEN_LEVEL, (GLint*)&max_tessfactor); > + glGetIntegerv(GL_MAX_GEOMETRY_OUTPUT_VERTICES, > (GLint*)&max_gs_out_vertices); > + glGetIntegerv(GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS, > + (GLint*)&max_gs_total_out_components); > + glGetIntegerv(GL_MAX_GEOMETRY_OUTPUT_COMPONENTS, > + (GLint*)&max_gs_out_components); > + glGetIntegerv(GL_MAX_GEOMETRY_SHADER_INVOCATIONS, > (GLint*)&max_gs_invocations); > + if (!piglit_check_gl_error(GL_NO_ERROR)) > + piglit_report_result(PIGLIT_FAIL); > + > + max_gs_out_vertices_real = MIN2(max_gs_out_vertices, > + max_gs_total_out_components / 5); > + > + if (scan_mode) { > + srand(scan_seed); > + > + /* First, generate test cases that max out each of the > dimensions */ > + testcase tc0 = explicit_testcase; > + if (!explicit_invocations) > + tc0.num_invocations = max_gs_invocations; > + > + if (!explicit_outputs) { > + testcase tc1 = tc0; > + > + if (!explicit_components) { > + tc1.num_outputs = max_gs_out_vertices_real; > + tc1.num_extra_components = > + MIN2(max_gs_total_out_components / > tc1.num_outputs, > + max_gs_out_components) - 5; > + } else { > + tc1.num_outputs = > + MIN2(max_gs_total_out_components / > + (5 + > tc1.num_extra_components), > + max_gs_out_vertices_real); > + } > + > + generate_testcases_max(tc1, explicit_instances, > explicit_patches, > + explicit_tessfactor_u, > explicit_tessfactor_v); > + } > + > + if (!explicit_components) { > + testcase tc1 = tc0; > + > + if (!explicit_outputs) { > + tc1.num_extra_components = > max_gs_out_components - 5; > + tc1.num_outputs = > + MIN2(max_gs_total_out_components / > + (5 + > tc1.num_extra_components), > + max_gs_out_vertices_real); > + } else { > + tc1.num_extra_components = > + MIN2(max_gs_total_out_components / > tc1.num_outputs, > + max_gs_out_components) - 4; > + } > + > + generate_testcases_max(tc1, explicit_instances, > explicit_patches, > + explicit_tessfactor_u, > explicit_tessfactor_v); > + } > + > + if (explicit_outputs && explicit_components) > + generate_testcases_max(tc0, explicit_instances, > explicit_patches, > + explicit_tessfactor_u, > explicit_tessfactor_v); > + > + /* Generate additional tests randomly. > + * > + * Attempt to generate a random distribution that isn't too > + * lop-sided, but admittedly this is all just hand-wavey > + * heuristics. > + */ > + while (testcases.size() < scan_count) { > + testcase tc = explicit_testcase; > + > + if (!explicit_outputs || !explicit_components) { > + if (explicit_outputs || rand() & 1) { > + unsigned max_components = > + > MIN2(max_gs_total_out_components / tc.num_outputs, > + > max_gs_out_components) - 5; > + tc.num_extra_components = rand() % > (max_components + 1); > + > + if (!explicit_outputs) { > + unsigned max_outputs = > + > MIN2(max_gs_total_out_components / > + (5 + > tc.num_extra_components), > + > max_gs_out_vertices_real); > + tc.num_outputs = 1 + > rand() % max_outputs; > + } > + } else { > + unsigned max_outputs = > + > MIN2(max_gs_total_out_components / > + (5 + > tc.num_extra_components), > + > max_gs_out_vertices_real); > + tc.num_outputs = 1 + rand() % > max_outputs; > + > + if (!explicit_components) { > + unsigned max_components = > + > MIN2(max_gs_total_out_components / tc.num_outputs, > + > max_gs_out_components) - 5; > + tc.num_extra_components = > rand() % (max_components + 1); > + } > + } > + } > + > + unsigned amplify = tc.num_outputs; > + > + if (explicit_invocations) > + amplify *= tc.num_invocations; > + if (explicit_tessfactor_u) > + amplify *= tc.tessfactor_u; > + if (explicit_tessfactor_v) > + amplify *= tc.tessfactor_v; > + if (explicit_patches) > + amplify *= tc.num_patches; > + if (explicit_instances) > + amplify *= tc.num_instances; > + > + unsigned target = max_final_points / amplify; > + > + if (small) > + target = MIN2(32, target); > + > + if (!explicit_tessfactor_u) { > + float tf_log_weight = logf(target) * > rand_subdivide(6); > + tc.tessfactor_u = > MIN2(expf(tf_log_weight), max_tessfactor); > + target /= tc.tessfactor_u; > + } > + if (!explicit_tessfactor_v) { > + float tf_log_weight = logf(target) * > rand_subdivide(6); > + tc.tessfactor_v = > MIN2(expf(tf_log_weight), max_tessfactor); > + target /= tc.tessfactor_v; > + } > + if (!explicit_invocations) { > + float log_weight = logf(target); > + if (!explicit_instances || > !explicit_patches) > + log_weight *= rand_subdivide(2); > + tc.num_invocations = > MIN2(expf(log_weight), max_gs_invocations); > + target /= tc.num_invocations; > + } > + if (!explicit_instances) { > + float log_weight = logf(target); > + if (!explicit_patches) > + log_weight *= rand_subdivide(2); > + tc.num_instances = expf(log_weight); > + target /= tc.num_instances; > + } > + if (!explicit_patches) > + tc.num_patches = 1 + rand() % target; > + > + add_testcase(&tc); > + } > + } else { > + add_testcase(&explicit_testcase); > + } > +} > + > +enum piglit_result > +piglit_display(void) > +{ > + bool pass = true; > + > + for (unsigned i = 0; i < testcases.size(); ++i) { > + if (!run_testcase(&testcases[i])) > + pass = false; > + } > + > + if (!piglit_check_gl_error(GL_NO_ERROR)) > + pass = false; > + > + piglit_present_results(); > + > + return pass ? PIGLIT_PASS : PIGLIT_FAIL; > +} > -- > 2.17.1 > > _______________________________________________ > Piglit mailing list > Piglit@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/piglit >
_______________________________________________ Piglit mailing list Piglit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/piglit