diff options
| -rw-r--r-- | tests/all.tests | 1 | ||||
| -rw-r--r-- | tests/spec/ext_transform_feedback/CMakeLists.gl.txt | 1 | ||||
| -rw-r--r-- | tests/spec/ext_transform_feedback/nonflat-integral.c | 137 |
3 files changed, 139 insertions, 0 deletions
diff --git a/tests/all.tests b/tests/all.tests index fbf6bd27..8d067be2 100644 --- a/tests/all.tests +++ b/tests/all.tests @@ -1944,6 +1944,7 @@ for mode in ['output', 'prims_generated', 'prims_written']: ext_transform_feedback[test_name] = concurrent_test( 'ext_transform_feedback-{0}'.format(test_name)) ext_transform_feedback['max-varyings'] = concurrent_test('ext_transform_feedback-max-varyings') +ext_transform_feedback['nonflat-integral'] = concurrent_test('ext_transform_feedback-nonflat-integral') ext_transform_feedback['overflow-edge-cases'] = concurrent_test('ext_transform_feedback-overflow-edge-cases') ext_transform_feedback['position-readback-bufferbase'] = concurrent_test('ext_transform_feedback-position') ext_transform_feedback['position-readback-bufferbase-discard'] = concurrent_test('ext_transform_feedback-position discard') diff --git a/tests/spec/ext_transform_feedback/CMakeLists.gl.txt b/tests/spec/ext_transform_feedback/CMakeLists.gl.txt index bf1da03e..e8810339 100644 --- a/tests/spec/ext_transform_feedback/CMakeLists.gl.txt +++ b/tests/spec/ext_transform_feedback/CMakeLists.gl.txt @@ -28,6 +28,7 @@ piglit_add_executable (ext_transform_feedback-interleaved interleaved.c) piglit_add_executable (ext_transform_feedback-intervening-read intervening-read.c) piglit_add_executable (ext_transform_feedback-max-varyings max-varyings.c) piglit_add_executable (ext_transform_feedback-negative-prims negative-prims.c) +piglit_add_executable (ext_transform_feedback-nonflat-integral nonflat-integral.c) piglit_add_executable (ext_transform_feedback-primgen primgen.c) piglit_add_executable (ext_transform_feedback-separate separate.c) piglit_add_executable (ext_transform_feedback-output-type output-type.c) diff --git a/tests/spec/ext_transform_feedback/nonflat-integral.c b/tests/spec/ext_transform_feedback/nonflat-integral.c new file mode 100644 index 00000000..3e1c338a --- /dev/null +++ b/tests/spec/ext_transform_feedback/nonflat-integral.c @@ -0,0 +1,137 @@ +/* + * Copyright © 2013 Intel Corporation + * + * 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 nonflat-interal.c + * + * Test that non-flat integral vertex shader outputs can be captured + * with transform feedback. + */ + +#include "piglit-util-gl-common.h" + +PIGLIT_GL_TEST_CONFIG_BEGIN + config.supports_gl_compat_version = 30; + config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGB | + PIGLIT_GL_VISUAL_ALPHA; +PIGLIT_GL_TEST_CONFIG_END + + +static const char vs_text[] = + "#version 130\n" + "out int out_int;\n" + "out ivec2 out_ivec2;\n" + "out ivec3 out_ivec3;\n" + "out ivec4 out_ivec4;\n" + "out uint out_uint;\n" + "out uvec2 out_uvec2;\n" + "out uvec3 out_uvec3;\n" + "out uvec4 out_uvec4;\n" + "void main()\n" + "{\n" + " gl_Position = vec4(0.0);\n" + " out_int = 11;\n" + " out_ivec2 = ivec2(21, 22);\n" + " out_ivec3 = ivec3(31, 32, 33);\n" + " out_ivec4 = ivec4(41, 42, 43, 44);\n" + " out_uint = 51u;\n" + " out_uvec2 = uvec2(61u, 62u);\n" + " out_uvec3 = uvec3(71u, 72u, 73u);\n" + " out_uvec4 = uvec4(81u, 82u, 83u, 84u);\n" + "}\n"; + + +static const GLchar *varyings[] = { + "out_int", "out_ivec2", "out_ivec3", "out_ivec4", + "out_uint", "out_uvec2", "out_uvec3", "out_uvec4" +}; + + +static const GLint expected_xfb_result[] = { + 11, 21, 22, 31, 32, 33, 41, 42, 43, 44, + 51, 61, 62, 71, 72, 73, 81, 82, 83, 84 +}; + + +void +piglit_init(int argc, char **argv) +{ + bool pass = true; + const GLint *readback; + GLuint buf; + void *initial_data; + int i; + GLuint prog = glCreateProgram(); + GLuint vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text); + glAttachShader(prog, vs); + glDeleteShader(vs); + glTransformFeedbackVaryings(prog, ARRAY_SIZE(varyings), varyings, + GL_INTERLEAVED_ATTRIBS); + glLinkProgram(prog); + if (!piglit_link_check_status(prog) || + !piglit_check_gl_error(GL_NO_ERROR)) { + piglit_report_result(PIGLIT_FAIL); + } + glUseProgram(prog); + + /* Create transform feedback buffer and pre-load it with + * garbage. + */ + glGenBuffers(1, &buf); + initial_data = malloc(sizeof(expected_xfb_result)); + memset(initial_data, 0xcc, sizeof(expected_xfb_result)); + glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, buf); + glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, sizeof(expected_xfb_result), + initial_data, GL_STREAM_READ); + free(initial_data); + + /* Run the test */ + glEnable(GL_RASTERIZER_DISCARD); + glBeginTransformFeedback(GL_POINTS); + glDrawArrays(GL_POINTS, 0, 1); + glEndTransformFeedback(); + + /* Check output */ + readback = glMapBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 0, + sizeof(expected_xfb_result), + GL_MAP_READ_BIT); + for (i = 0; i < ARRAY_SIZE(expected_xfb_result); i++) { + if (readback[i] != expected_xfb_result[i]) { + printf("XFB[%i] == %i, expected %i\n", i, readback[i], + expected_xfb_result[i]); + pass = false; + } + } + glUnmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER); + + pass = piglit_check_gl_error(GL_NO_ERROR) && pass; + piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL); +} + + +enum piglit_result +piglit_display(void) +{ + /* Should never be reached */ + return PIGLIT_FAIL; +} |