[Piglit] [PATCH 4/5] gl-4.5/named-framebuffer-draw-buffers-errors: add a new test
Anuj Phogat
anuj.phogat at gmail.com
Mon Jan 23 19:50:04 UTC 2017
On Wed, Jan 11, 2017 at 1:46 PM, Alejandro Piñeiro <apinheiro at igalia.com> wrote:
> Equivalent to the already existing gl-3.1/draw-buffers-errors and
> spec/gles-2.0/draw-buffers, but using the 4.5 API. The errors are
> the same that with DrawBuffers so we are testing this method too,
> although indirectly.
>
> Used as reference OpenGL 4.5 spec, section 17.4.1 "Selecting Buffers
> for Writing", page 490 (511 on the PDF).
>
> Note that the behaviour is slightly different on compared with 4.4 and
> lower, but we are testing only 4.5, as is the most recent 4.x spec.
> ---
> tests/all.py | 5 +
> tests/spec/CMakeLists.txt | 1 +
> tests/spec/gl-4.5/CMakeLists.gl.txt | 13 +
> tests/spec/gl-4.5/CMakeLists.txt | 1 +
> .../gl-4.5/named-framebuffer-draw-buffers-errors.c | 328 +++++++++++++++++++++
> 5 files changed, 348 insertions(+)
> create mode 100644 tests/spec/gl-4.5/CMakeLists.gl.txt
> create mode 100644 tests/spec/gl-4.5/CMakeLists.txt
> create mode 100644 tests/spec/gl-4.5/named-framebuffer-draw-buffers-errors.c
>
> diff --git a/tests/all.py b/tests/all.py
> index e8de1b2..78aa76b 100644
> --- a/tests/all.py
> +++ b/tests/all.py
> @@ -1313,6 +1313,11 @@ with profile.test_list.group_manager(
>
> with profile.test_list.group_manager(
> PiglitGLTest,
> + grouptools.join('spec', '!opengl 4.5')) as g:
> + g(['gl-4.5-named-framebuffer-draw-buffers-errors'], 'named-framebuffer-draw-buffers-errors')
> +
> +with profile.test_list.group_manager(
> + PiglitGLTest,
> grouptools.join('spec', '!opengl 4.4')) as g:
> g(['tex-errors'])
>
> diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
> index 4ac1a53..d538157 100644
> --- a/tests/spec/CMakeLists.txt
> +++ b/tests/spec/CMakeLists.txt
> @@ -118,6 +118,7 @@ add_subdirectory (gl-3.1)
> add_subdirectory (gl-3.2)
> add_subdirectory (gl-3.3)
> add_subdirectory (gl-4.4)
> +add_subdirectory (gl-4.5)
> add_subdirectory (gles-2.0)
> add_subdirectory (gles-3.0)
> add_subdirectory (glx_arb_create_context)
> diff --git a/tests/spec/gl-4.5/CMakeLists.gl.txt b/tests/spec/gl-4.5/CMakeLists.gl.txt
> new file mode 100644
> index 0000000..3ea3b65
> --- /dev/null
> +++ b/tests/spec/gl-4.5/CMakeLists.gl.txt
> @@ -0,0 +1,13 @@
> +include_directories(
> + ${GLEXT_INCLUDE_DIR}
> + ${OPENGL_INCLUDE_PATH}
> +)
> +
> +link_libraries (
> + piglitutil_${piglit_target_api}
> + ${OPENGL_gl_LIBRARY}
> +)
> +
> +piglit_add_executable (gl-4.5-named-framebuffer-draw-buffers-errors named-framebuffer-draw-buffers-errors.c)
> +
> +# vim: ft=cmake:
> diff --git a/tests/spec/gl-4.5/CMakeLists.txt b/tests/spec/gl-4.5/CMakeLists.txt
> new file mode 100644
> index 0000000..4a012b9
> --- /dev/null
> +++ b/tests/spec/gl-4.5/CMakeLists.txt
> @@ -0,0 +1 @@
> +piglit_include_target_api()
> \ No newline at end of file
> diff --git a/tests/spec/gl-4.5/named-framebuffer-draw-buffers-errors.c b/tests/spec/gl-4.5/named-framebuffer-draw-buffers-errors.c
> new file mode 100644
> index 0000000..cd90f81
> --- /dev/null
> +++ b/tests/spec/gl-4.5/named-framebuffer-draw-buffers-errors.c
> @@ -0,0 +1,328 @@
> +/**
> + * Copyright 2017 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 named-framebuffer-draw-buffers-errors.c
> + *
> + * Test that NamedFramebufferDrawBuffers() returns correct error
> + * message for different values.
> + *
> + * All spec quotes come from OpenGL 4.5 spec, section 17.4.1
> + * "Selecting Buffers for Writint", page 492 (515 on PDF).
> + *
> + * Note that for 4.5, they are the same errors that for DrawBuffers,
> + * so we are also testing that method although somewhat
> + * indirectly. Also some spec quotes could mention DrawBuffers too.
> + *
> + * From OpenGL 4.5, section 17.4.1 "Selecting Buffers for Writing",
> + * page 492:
> + *
> + * "void DrawBuffers( sizei n, const enum *bufs );
> + * void NamedFramebufferDrawBuffers(uint framebuffer,
> + * sizei n, const enum *bufs );
> + *
> + * [...]
> + *
> + * For DrawBuffers, the framebuffer object is that bound to the DRAW_-
> + * FRAMEBUFFER binding. For NamedFramebufferDrawBuffers, framebuffer
> + * is the name of the framebuffer object. If framebuffer is zero, then
> + * the default framebuffer is affected. n specifies the number of
> + * buffers in bufs. bufs is a pointer to an array of values specifying
> + * the buffer to which each fragment color is written."
> + *
> + */
> +
> +#include "piglit-util-gl.h"
> +
> +PIGLIT_GL_TEST_CONFIG_BEGIN
> +
> + config.supports_gl_core_version = 45;
> +
> + config.window_visual = PIGLIT_GL_VISUAL_RGBA |
> + PIGLIT_GL_VISUAL_DOUBLE;
> +
> +PIGLIT_GL_TEST_CONFIG_END
> +
> +/*
> + * Table 17.6 from 4.5 spec, page 492 (512 on PDF)
> + */
> +static const GLenum table_17_6[] = {
> + GL_NONE,
> + GL_FRONT_LEFT,
> + GL_FRONT_RIGHT,
> + GL_BACK_LEFT,
> + GL_BACK_RIGHT,
> +};
> +
> +/*
> + * Table 17.6 from 4.5 spec, plus BACK, as BACK is allowed for default
> + * framebuffer since 4.5 under some conditions.
> + */
> +static const GLenum table_17_6_and_back[] = {
> + GL_NONE,
> + GL_FRONT_LEFT,
> + GL_FRONT_RIGHT,
> + GL_BACK_LEFT,
> + GL_BACK_RIGHT,
> + GL_BACK,
> +};
> +
> +static const GLenum multiple_buffers[] = {
> + GL_FRONT,
> + GL_LEFT,
> + GL_RIGHT,
> + GL_FRONT_AND_BACK,
> +};
> +
> +void
> +piglit_init(int argc, char **argv)
> +{
> + /* NOTHING TO DO */
We are not actually drawing anything in this test. So, all or most of the
code from piglit_display() should be moved to piglit_init(). Applies to
patch 5/5 too.
> +}
> +
> +enum piglit_result
> +piglit_display(void)
> +{
> + bool pass = true;
> + GLuint framebuffer;
> + GLuint default_framebuffer = 0;
> + GLenum bufs[2] = { GL_BACK_LEFT, GL_BACK};
Remove white space before GL_BACK_LEFT
> + GLenum one_buf;
> + bool subtest_pass;
> + int i;
> +
> + glCreateFramebuffers(1, &framebuffer);
> + piglit_check_gl_error(GL_NO_ERROR);
> +
> + /*
> + * "An INVALID_OPERATION error is generated by
> + * NamedFramebufferDrawBuffers if framebuffer is not zero or
> + * the name of an existing framebuffer"
> + */
> + glNamedFramebufferDrawBuffers(5, 2, bufs);
> + SUBTEST(GL_INVALID_OPERATION, pass, "INVALID_OPERATION if framebuffer is "
> + "not zero or the name of an existing framebuffer");
> +
> + /*
> + * "An INVALID_VALUE error is generated if n is negative, or greater than the
> + * value of MAX_DRAW_BUFFERS."
> + */
> + int max_draw_buffers;
> + glGetIntegerv(GL_MAX_DRAW_BUFFERS, &max_draw_buffers);
> +
> + subtest_pass = true;
> + glNamedFramebufferDrawBuffers(0, -1, bufs);
> + subtest_pass = subtest_pass & piglit_check_gl_error(GL_INVALID_VALUE);
> +
> + glNamedFramebufferDrawBuffers(0, max_draw_buffers + 1, bufs);
> + subtest_pass = subtest_pass & piglit_check_gl_error(GL_INVALID_VALUE);
> +
> + SUBTESTCONDITION(subtest_pass, pass, "INVALID_VALUE error is generated "
> + "if n is negative, or greater than the value of MAX_DRAW_BUFFERS.");
Above line exceeds 80 character limit. This happens at many other places
in this patch and patch 5/5.
> +
> + /*
> + * From OpenGL 4.5 spec
> + * "An INVALID_ENUM error is generated if any value in bufs
> + * is not one of the values in tables 17.5 or 17.6."
> + */
> + subtest_pass = true;
> + one_buf = GL_RED;
> + glNamedFramebufferDrawBuffers(default_framebuffer, 1, &one_buf);
> + subtest_pass = subtest_pass && piglit_check_gl_error(GL_INVALID_ENUM);
> + glNamedFramebufferDrawBuffers(framebuffer, 1, &one_buf);
> + subtest_pass = subtest_pass && piglit_check_gl_error(GL_INVALID_ENUM);
> +
> + SUBTESTCONDITION(subtest_pass, pass, "INVALID_ENUM error is generated "
> + "if any value in bufs is not one of the values in tables "
> + "17.5 or 17.6.");
> + /*
> + * (cont on error out of 17.5 or 17.6) Specifically for the default
> + * framebuffer:
> + * From OpenGL 4.5 spec, page 492 (515 PDF)
> + * "If the default framebuffer is affected, then each of the
> + * constants must be one of the values listed in table 17.6
> + * or the special value BACK .""
> + *
> + * And:
> + *"An INVALID_OPERATION error is generated if the default
> + * framebuffer is affected and any value in bufs is a
> + * constant (other than NONE or BACK) that does not indicate
> + * one of the color buffers allocated to the default
> + * framebuffer."
> + *
> + * So for the default framebuffer, and that table, we expect
> + * GL_NO_ERROR or GL_INVALID_OPERATION.
> + */
> + subtest_pass = true;
> + for (i = 0; i < ARRAY_SIZE(table_17_6_and_back); i++) {
> + GLenum err = 0;
> +
> + glNamedFramebufferDrawBuffers(default_framebuffer, 1, &table_17_6_and_back[i]);
> + /* We manually check glGetError instead of relying on
> + * piglit_check_gl_error like in other subtests
> + * because for subtests that checks several enums, we
> + * are interested on getting which one failed. That
> + * makes debugging easier.
> + */
> + err = glGetError();
> + if (err != GL_NO_ERROR && err != GL_INVALID_OPERATION) {
> + printf("Expected GL_NO_ERROR or GL_INVALID_OPERATION with"
> + " %s but received: %s\n",
> + piglit_get_gl_enum_name(table_17_6_and_back[i]),
> + piglit_get_gl_error_name(err));
> + subtest_pass = false;
> + }
> + }
> +
> + /* For that spec paragraph, we also test enums from table
> + * 17.5. They should return INVALID_OPERATION, as after all,
> + * they are not allocated to the default framebuffer. */
> + one_buf = GL_COLOR_ATTACHMENT0;
> + glNamedFramebufferDrawBuffers(default_framebuffer, 1, &one_buf);
> + subtest_pass = subtest_pass && piglit_check_gl_error(GL_INVALID_OPERATION);
> +
> + SUBTESTCONDITION(subtest_pass, pass, "If the default framebuffer is "
> + "affected, then each of the constants must be one "
> + "of the values listed in table 17.6 or the special "
> + "value BACK. INVALID_OPERATION error is generated "
> + "if the default framebuffer is affected and any value "
> + "in bufs is a constant (other than NONE or BACK ) "
> + "that does not indicate one of the color buffers "
> + "allocated to the default framebuffer.");
> +
> + /* (cont default framebuffer)
> + * From OpenGL 4.5 spec:
> + * "When BACK is used, n must be 1 and color values are
> + * written into the left buffer for single-buffered
> + * contexts, or into the back left buffer for
> + * double-buffered contexts"
> + *
> + * From the error table:
> + * "An INVALID_OPERATION error is generated if any value in
> + * bufs is BACK , and n is not one."
> + *
> + */
> + glNamedFramebufferDrawBuffers(default_framebuffer, 2, bufs);
> + SUBTEST(GL_INVALID_OPERATION, pass, "(default framebuffer) An "
> + "INVALID_OPERATION error is generated if any value in "
> + "bufs is BACK, and n is not one.");
> +
> + /*
> + * Now, specifically for a framebuffer object:
> + * "If a framebuffer object is affected, then each of the
> + * constants must be one of the values listed in table 17.5."
> + *
> + * 17.5 is GL_NONE, and COLOR_ATTACHMENTi, where i <
> + * MAX_COLOR_ATTACHMENTS - 1
> + */
> + int max_attachments;
> + glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &max_attachments);
> +
> + subtest_pass = true;
> + for (i = 0; i < max_attachments; i++) {
> + one_buf = GL_COLOR_ATTACHMENT0 + i;
> + glNamedFramebufferDrawBuffers(framebuffer, 1, &one_buf);
> + subtest_pass = subtest_pass && piglit_check_gl_error(GL_NO_ERROR);
> + }
> + SUBTESTCONDITION(subtest_pass, pass, "If a framebuffer object "
> + "is affected, then each of constants must be one of the "
> + "values listed in table 17.5.");
> +
> + /*
> + * "An INVALID_OPERATION error is generated if a framebuffer
> + * object is affected and any value in bufs is a constant
> + * from table 17.6, or COLOR_ATTACHMENTm where m is greater
> + * than or equal to the value of MAX_COLOR_ATTACHMENTS."
> + */
> + subtest_pass = true;
> + /* Starting at 1, as GL_NONE is valid */
> + for (i = 1; i < ARRAY_SIZE(table_17_6); i++) {
> + GLenum err = 0;
> +
> + glNamedFramebufferDrawBuffers(framebuffer, 1, &table_17_6[i]);
> + err = glGetError();
> + if (err != GL_INVALID_OPERATION) {
> + printf("Expected GL_INVALID_OPERATION with"
> + " %s but received: %s\n",
> + piglit_get_gl_enum_name(table_17_6[i]),
> + piglit_get_gl_error_name(err));
> + subtest_pass = false;
> + }
> + }
> +
> + one_buf = GL_COLOR_ATTACHMENT0 + max_attachments;
> + glNamedFramebufferDrawBuffers(framebuffer, 1, &one_buf);
> + subtest_pass = subtest_pass && piglit_check_gl_error(GL_INVALID_OPERATION);
> + SUBTESTCONDITION(subtest_pass, pass, "INVALID_OPERATION error is generated "
> + "if a framebuffer object is affected and any value in bufs is "
> + "a constant from table 17.6, or COLOR_ATTACHMENTm where m is "
> + "greater than or equal to the value of MAX_COLOR_ATTACHMENTS.");
> +
> + /*
> + * "An INVALID_OPERATION error is generated if a buffer other
> + * than NONE is specified more than once in the array pointed
> + * to by bufs"
> + */
> + bufs[0] = bufs[1] = GL_FRONT_LEFT;
> + glNamedFramebufferDrawBuffers(framebuffer, 2, bufs);
> + SUBTEST(GL_INVALID_OPERATION, pass, "INVALID_OPERATION error is generated "
> + "if a buffer other than NONE is specified more than once in the array "
> + "pointed to by bufs.");
> +
> + /*
> + * From OpenGL 4.5 spec:
> + * "An INVALID_ENUM error is generated if any value in bufs is
> + * FRONT, LEFT, RIGHT, or FRONT_AND_BACK . This restriction
> + * applies to both the default framebuffer and framebuffer
> + * objects, and exists because these constants may themselves
> + * refer to multiple buffers, as shown in table 17.4."
> + */
> + subtest_pass = true;
> + for (i = 0; i < ARRAY_SIZE(multiple_buffers); i++) {
> + GLenum err = 0;
> + bool local_pass = true;
> +
> + glNamedFramebufferDrawBuffers(default_framebuffer, 1, &multiple_buffers[i]);
> + err = glGetError();
> + local_pass = local_pass && (err == GL_INVALID_ENUM);
> +
> + glNamedFramebufferDrawBuffers(framebuffer, 1, &multiple_buffers[i]);
> + err = glGetError();
> + local_pass = local_pass && (err == GL_INVALID_ENUM);
> +
> + if (!local_pass)
> + printf("Expected GL_INVALID_ENUM with"
> + " %s but received: %s\n",
> + piglit_get_gl_enum_name(table_17_6_and_back[i]),
> + piglit_get_gl_error_name(err));
> +
> + subtest_pass = subtest_pass && local_pass;
> +
> + }
> + SUBTESTCONDITION(subtest_pass, pass, "INVALID_ENUM error is generated if "
> + "any value in bufs is FRONT, LEFT, RIGHT, or FRONT_AND_BACK ");
> +
> + /* clean up */
> + glDeleteFramebuffers(1, &framebuffer);
> +
> + return pass ? PIGLIT_PASS : PIGLIT_FAIL;
> +}
> --
> 2.9.3
>
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