[Mesa-dev] [PATCH] miptree: test ability to use upside down miptree
andrey simiklit
asimiklit.work at gmail.com
Tue Nov 6 10:33:12 UTC 2018
Hi all,
Have somebody some suggestions for this test?
This patch is needed to test an issue (assertion in mesa) which will be
fixed by this mesa patch:
https://patchwork.freedesktop.org/patch/254397/
Regards,
Andrii.
On Tue, Oct 23, 2018 at 4:44 PM <asimiklit.work at gmail.com> wrote:
> From: Andrii Simiklit <andrii.simiklit at 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.simiklit at 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.work at 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
>
>
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