[Piglit] [PATCH] glsl-fs-discard-mrt: New test for bug 75207

[Eric Anholt]

Emil Velikov <emil.l.velikov at gmail.com> writes:

> On 9 July 2015 at 06:36, Eric Anholt <eric at anholt.net> wrote:
>> ---
>>
>> Here's another old test of mine, not *quite* as stale.
>>
>>  tests/all.py                        |   1 +
>>  tests/shaders/CMakeLists.gl.txt     |   1 +
>>  tests/shaders/glsl-fs-discard-mrt.c | 199 ++++++++++++++++++++++++++++++++++++
>>  3 files changed, 201 insertions(+)
>>  create mode 100644 tests/shaders/glsl-fs-discard-mrt.c
>>
>> diff --git a/tests/all.py b/tests/all.py
>> index b85d2a2..abb73af 100644
>> --- a/tests/all.py
>> +++ b/tests/all.py
>> @@ -503,6 +503,7 @@ with profile.group_manager(PiglitGLTest, 'shaders') as g:
>>      g(['glsl-fs-bug25902'])
>>      g(['glsl-fs-color-matrix'])
>>      g(['glsl-fs-discard-02'])
>> +    g(['glsl-fs-discard-mrt'])
>>      g(['glsl-fs-exp2'])
>>      g(['glsl-fs-flat-color'])
>>      g(['glsl-fs-fogcolor-statechange'])
>> diff --git a/tests/shaders/CMakeLists.gl.txt b/tests/shaders/CMakeLists.gl.txt
>> index 192debb..2e0d4fb 100644
>> --- a/tests/shaders/CMakeLists.gl.txt
>> +++ b/tests/shaders/CMakeLists.gl.txt
>> @@ -133,6 +133,7 @@ piglit_add_executable (vpfp-generic vpfp-generic.cpp)
>>  piglit_add_executable (vp-max-array vp-max-array.c)
>>  piglit_add_executable (glsl-derivs glsl-derivs.c)
>>  piglit_add_executable (glsl-fs-discard-02 glsl-fs-discard-02.c)
>> +piglit_add_executable (glsl-fs-discard-mrt glsl-fs-discard-mrt.c)
>>  piglit_add_executable (glsl-fwidth glsl-fwidth.c)
>>  piglit_add_executable (glsl-lod-bias glsl-lod-bias.c)
>>  piglit_add_executable (glsl-preprocessor-comments glsl-preprocessor-comments.c)
>> diff --git a/tests/shaders/glsl-fs-discard-mrt.c b/tests/shaders/glsl-fs-discard-mrt.c
>> new file mode 100644
>> index 0000000..ca4e7d7
>> --- /dev/null
>> +++ b/tests/shaders/glsl-fs-discard-mrt.c
>> @@ -0,0 +1,199 @@
>> +/*
>> + * Copyright © 2014 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 glsl-fs-discard-mrt.c
>> + *
>> + * Tests that discarding fragments works correctly when rendering to
>> + * multiple render targets.
>> + */
>> +
>> +#include "piglit-util-gl.h"
>> +
>> +#define TEX_W 64
>> +#define TEX_H 64
>> +#define STRIPE_SIZE 25
>> +
>> +PIGLIT_GL_TEST_CONFIG_BEGIN
>> +
>> +       config.supports_gl_compat_version = 10;
>> +
>> +       config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_DEPTH;
>> +
>> +       config.window_width = TEX_W * 2 + 60;
>> +       config.window_height = TEX_H + 40;
>> +
> With the window dimensions below 160x160 the test will be picky on
> Windows. I don't use/test such platforms but we could be kind to Brian
> & Jose and increase the width/height ?

I guess we could just bump the TEX_W/H easily.
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