From: Andrii Simiklit <andrii.simik...@globallogic.com> Test that usage of upside down miptree doesn't cause assertion
The miptree: level 0 = 1x1 level 1 = 2x2 level 2 = 4x4 ... level n = NxN should be acceptable for case when we don't use a min filter. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107987 Signed-off-by: Andrii Simiklit <andrii.simik...@globallogic.com> --- tests/opengl.py | 1 + tests/texturing/CMakeLists.gl.txt | 1 + tests/texturing/tex-upside-down-miptree.c | 171 ++++++++++++++++++++++ 3 files changed, 173 insertions(+) create mode 100644 tests/texturing/tex-upside-down-miptree.c diff --git a/tests/opengl.py b/tests/opengl.py index f7e408cd5..f6a38e40e 100644 --- a/tests/opengl.py +++ b/tests/opengl.py @@ -704,6 +704,7 @@ with profile.test_list.group_manager( g(['getteximage-targets', '1D']) g(['getteximage-targets', '2D']) g(['teximage-scale-bias']) + g(['tex-upside-down-miptree']) add_msaa_visual_plain_tests(g, ['draw-pixels']) add_msaa_visual_plain_tests(g, ['read-front'], run_concurrent=False) add_msaa_visual_plain_tests(g, ['read-front', 'clear-front-first'], diff --git a/tests/texturing/CMakeLists.gl.txt b/tests/texturing/CMakeLists.gl.txt index e5d41e432..02b572c79 100644 --- a/tests/texturing/CMakeLists.gl.txt +++ b/tests/texturing/CMakeLists.gl.txt @@ -98,5 +98,6 @@ piglit_add_executable (texture-al texture-al.c) piglit_add_executable (texture-rg texture-rg.c) piglit_add_executable (teximage-colors teximage-colors.c) piglit_add_executable (zero-tex-coord zero-tex-coord.c) +piglit_add_executable (tex-upside-down-miptree tex-upside-down-miptree.c) # vim: ft=cmake: diff --git a/tests/texturing/tex-upside-down-miptree.c b/tests/texturing/tex-upside-down-miptree.c new file mode 100644 index 000000000..2d10fb49a --- /dev/null +++ b/tests/texturing/tex-upside-down-miptree.c @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2018 Andrii Simiklit + * + * 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. + * + * Authors: + * Andrii Simiklit <asimiklit.w...@gmail.com> + * + */ + +/** + * Test what there no an assertion when we use upside down miptree and + * GL_TEXTURE_MIN_FILTER is GL_LINEAR, base level is not 0 + * Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107987 + */ + +#include "piglit-util-gl.h" +#define TW 64 +#define TH 64 + +PIGLIT_GL_TEST_CONFIG_BEGIN + + config.supports_gl_compat_version = 10; + + config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE; + config.khr_no_error_support = PIGLIT_NO_ERRORS; + +PIGLIT_GL_TEST_CONFIG_END + +static unsigned nlevels = 0; + +static void +get_rect_bounds(int pos, int *x, int *y, int *w, int *h) +{ + *x = pos * (piglit_width / 3) + 5; + *y = 5; + *w = piglit_width / 3 - 10; + *h = piglit_height - 10; +} + + +static void +draw_rect(int pos) +{ + int x, y, w, h; + get_rect_bounds(pos, &x, &y, &w, &h); + piglit_draw_rect_tex(x, y, w, h, 0, 0, 1, 1); +} + + +static GLboolean +probe_pos(int pos, const GLfloat expected[4]) +{ + int x, y, w, h; + get_rect_bounds(pos, &x, &y, &w, &h); + return piglit_probe_rect_rgba(x, y, w, h, expected); +} + + +enum piglit_result +piglit_display(void) +{ + GLboolean pass = GL_TRUE; + unsigned level; + static const char *fragShaderText = + "uniform sampler2D tex;\n" + "void main()\n" + "{\n" + " gl_FragColor = texture2D(tex, gl_TexCoord[0].xy).rgba;\n" + "}\n"; + const GLfloat oneby255 = (1.0 / 255.0); + const GLfloat expected[4] = { oneby255 * 255.0, + oneby255 * 128.0, + oneby255 * 64.0, + oneby255 * 32.0 }; + GLint tex; + int pos = 0; + GLuint prog; + + piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE); + piglit_require_GLSL_version(110); + prog = piglit_build_simple_program(NULL, fragShaderText); + glUseProgram(prog); + tex = glGetUniformLocation(prog, "tex"); + glUniform1i(tex, 0); + + for(level = 1; level < nlevels && pass; ++level) + { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, level); + glClear(GL_COLOR_BUFFER_BIT); + /* If we the draw_rect function doesn't cause crash/assertion + * it means everything is okay and test will be marked + * as pass + */ + draw_rect(pos); + /** Just in case we check it + */ + pass = pass && probe_pos(pos, expected); + } + + glUseProgram(0); + glDeleteProgram(prog); + piglit_present_results(); + + return pass ? PIGLIT_PASS : PIGLIT_FAIL; +} + + +static void +setup_texture(void) +{ + GLuint t; + GLubyte img[TH][TW][4]; + int i, j, w, h; + + for (i = 0; i < TH; i++) { + for (j = 0; j < TW; j++) { + img[i][j][0] = 255; + img[i][j][1] = 128; + img[i][j][2] = 64; + img[i][j][3] = 32; + } + } + + /* make an abnormal upside down miptree + */ + glGenTextures(1, &t); + glBindTexture(GL_TEXTURE_2D, t); + w = TW; + h = TH; + for (nlevels = 0; w > 0 && h > 0; nlevels++) { + w /= 2; + h /= 2; + } + w = TW; + h = TH; + for (i = 0; w > 0 && h > 0; i++) { + glTexImage2D(GL_TEXTURE_2D, nlevels - 1 - i, GL_RGBA, w, h, 0, + GL_RGBA, GL_UNSIGNED_BYTE, img); + w /= 2; + h /= 2; + } + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glClearColor(0.5, 0.5, 0.5, 0.0); + piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE); +} + + +void +piglit_init(int argc, char **argv) +{ + setup_texture(); +} -- 2.17.1 _______________________________________________ Piglit mailing list Piglit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/piglit
