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tests: Add cogl test utils framework

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This is in preparation of moving Cogl tests into src/tests, so they can
use the real backend, instead of the franken-backend it some how still
manages to use some how.

This makes them no longer installed. Most mutter tests are yet to be
installed, so leave that for later, since bigger changes are needed for
that.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2555>
This commit is contained in:
Jonas Ådahl 2022-08-04 18:53:56 +02:00 committed by Marge Bot
parent 02eac693df
commit f91f53e6eb
5 changed files with 755 additions and 0 deletions
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404
src/tests/cogl-test-utils.c Normal file
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/*
* Copyright (C) 2022 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#include "config.h"
#include "tests/cogl-test-utils.h"
#include "backends/meta-backend-private.h"
static gboolean cogl_test_is_verbose;
CoglContext *test_ctx;
CoglFramebuffer *test_fb;
static gboolean
compare_component (int a, int b)
{
return ABS (a - b) <= 1;
}
void
test_utils_compare_pixel_and_alpha (const uint8_t *screen_pixel,
uint32_t expected_pixel)
{
/* Compare each component with a small fuzz factor */
if (!compare_component (screen_pixel[0], expected_pixel >> 24) ||
!compare_component (screen_pixel[1], (expected_pixel >> 16) & 0xff) ||
!compare_component (screen_pixel[2], (expected_pixel >> 8) & 0xff) ||
!compare_component (screen_pixel[3], (expected_pixel >> 0) & 0xff))
{
uint32_t screen_pixel_num = GUINT32_FROM_BE (*(uint32_t *) screen_pixel);
char *screen_pixel_string =
g_strdup_printf ("#%08x", screen_pixel_num);
char *expected_pixel_string =
g_strdup_printf ("#%08x", expected_pixel);
g_assert_cmpstr (screen_pixel_string, ==, expected_pixel_string);
g_free (screen_pixel_string);
g_free (expected_pixel_string);
}
}
void
test_utils_compare_pixel (const uint8_t *screen_pixel,
uint32_t expected_pixel)
{
/* Compare each component with a small fuzz factor */
if (!compare_component (screen_pixel[0], expected_pixel >> 24) ||
!compare_component (screen_pixel[1], (expected_pixel >> 16) & 0xff) ||
!compare_component (screen_pixel[2], (expected_pixel >> 8) & 0xff))
{
uint32_t screen_pixel_num = GUINT32_FROM_BE (*(uint32_t *) screen_pixel);
char *screen_pixel_string =
g_strdup_printf ("#%06x", screen_pixel_num >> 8);
char *expected_pixel_string =
g_strdup_printf ("#%06x", expected_pixel >> 8);
g_assert_cmpstr (screen_pixel_string, ==, expected_pixel_string);
g_free (screen_pixel_string);
g_free (expected_pixel_string);
}
}
void
test_utils_check_pixel (CoglFramebuffer *test_fb,
int x,
int y,
uint32_t expected_pixel)
{
uint8_t pixel[4];
cogl_framebuffer_read_pixels (test_fb,
x, y, 1, 1,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
pixel);
test_utils_compare_pixel (pixel, expected_pixel);
}
void
test_utils_check_pixel_and_alpha (CoglFramebuffer *test_fb,
int x,
int y,
uint32_t expected_pixel)
{
uint8_t pixel[4];
cogl_framebuffer_read_pixels (test_fb,
x, y, 1, 1,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
pixel);
test_utils_compare_pixel_and_alpha (pixel, expected_pixel);
}
void
test_utils_check_pixel_rgb (CoglFramebuffer *test_fb,
int x,
int y,
int r,
int g,
int b)
{
g_return_if_fail (r >= 0);
g_return_if_fail (g >= 0);
g_return_if_fail (b >= 0);
g_return_if_fail (r <= 0xFF);
g_return_if_fail (g <= 0xFF);
g_return_if_fail (b <= 0xFF);
test_utils_check_pixel (test_fb, x, y,
(((guint32) r) << 24) |
(((guint32) g) << 16) |
(((guint32) b) << 8));
}
void
test_utils_check_region (CoglFramebuffer *test_fb,
int x,
int y,
int width,
int height,
uint32_t expected_rgba)
{
uint8_t *pixels, *p;
pixels = p = g_malloc (width * height * 4);
cogl_framebuffer_read_pixels (test_fb,
x,
y,
width,
height,
COGL_PIXEL_FORMAT_RGBA_8888,
p);
/* Check whether the center of each division is the right color */
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
test_utils_compare_pixel (p, expected_rgba);
p += 4;
}
}
g_free (pixels);
}
CoglTexture *
test_utils_create_color_texture (CoglContext *context,
uint32_t color)
{
CoglTexture2D *tex_2d;
color = GUINT32_TO_BE (color);
tex_2d = cogl_texture_2d_new_from_data (context,
1, 1, /* width/height */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
(uint8_t *) &color,
NULL);
return COGL_TEXTURE (tex_2d);
}
gboolean
cogl_test_verbose (void)
{
return cogl_test_is_verbose;
}
static void
set_auto_mipmap_cb (CoglTexture *sub_texture,
const float *sub_texture_coords,
const float *meta_coords,
void *user_data)
{
cogl_primitive_texture_set_auto_mipmap (COGL_PRIMITIVE_TEXTURE (sub_texture),
FALSE);
}
CoglTexture *
test_utils_texture_new_with_size (CoglContext *ctx,
int width,
int height,
TestUtilsTextureFlags flags,
CoglTextureComponents components)
{
CoglTexture *tex;
GError *skip_error = NULL;
/* First try creating a fast-path non-sliced texture */
tex = COGL_TEXTURE (cogl_texture_2d_new_with_size (ctx, width, height));
cogl_texture_set_components (tex, components);
if (!cogl_texture_allocate (tex, &skip_error))
{
g_error_free (skip_error);
cogl_object_unref (tex);
tex = NULL;
}
if (!tex)
{
/* If it fails resort to sliced textures */
int max_waste = flags & TEST_UTILS_TEXTURE_NO_SLICING ?
-1 : COGL_TEXTURE_MAX_WASTE;
CoglTexture2DSliced *tex_2ds =
cogl_texture_2d_sliced_new_with_size (ctx,
width,
height,
max_waste);
tex = COGL_TEXTURE (tex_2ds);
cogl_texture_set_components (tex, components);
}
if (flags & TEST_UTILS_TEXTURE_NO_AUTO_MIPMAP)
{
/* To be able to iterate the slices of a #CoglTexture2DSliced we
* need to ensure the texture is allocated... */
cogl_texture_allocate (tex, NULL); /* don't catch exceptions */
cogl_meta_texture_foreach_in_region (COGL_META_TEXTURE (tex),
0, 0, 1, 1,
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
set_auto_mipmap_cb,
NULL); /* don't catch exceptions */
}
cogl_texture_allocate (tex, NULL);
return tex;
}
CoglTexture *
test_utils_texture_new_from_bitmap (CoglBitmap *bitmap,
TestUtilsTextureFlags flags,
gboolean premultiplied)
{
CoglAtlasTexture *atlas_tex;
CoglTexture *tex;
GError *internal_error = NULL;
if (!flags)
{
/* First try putting the texture in the atlas */
atlas_tex = cogl_atlas_texture_new_from_bitmap (bitmap);
cogl_texture_set_premultiplied (COGL_TEXTURE (atlas_tex), premultiplied);
if (cogl_texture_allocate (COGL_TEXTURE (atlas_tex), &internal_error))
return COGL_TEXTURE (atlas_tex);
cogl_object_unref (atlas_tex);
}
g_clear_error (&internal_error);
/* If that doesn't work try a fast path 2D texture */
tex = COGL_TEXTURE (cogl_texture_2d_new_from_bitmap (bitmap));
cogl_texture_set_premultiplied (tex, premultiplied);
if (g_error_matches (internal_error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_NO_MEMORY))
{
g_assert_not_reached ();
return NULL;
}
g_clear_error (&internal_error);
if (!tex)
{
/* Otherwise create a sliced texture */
int max_waste = flags & TEST_UTILS_TEXTURE_NO_SLICING ?
-1 : COGL_TEXTURE_MAX_WASTE;
CoglTexture2DSliced *tex_2ds =
cogl_texture_2d_sliced_new_from_bitmap (bitmap, max_waste);
tex = COGL_TEXTURE (tex_2ds);
cogl_texture_set_premultiplied (tex, premultiplied);
}
if (flags & TEST_UTILS_TEXTURE_NO_AUTO_MIPMAP)
{
cogl_meta_texture_foreach_in_region (COGL_META_TEXTURE (tex),
0, 0, 1, 1,
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
set_auto_mipmap_cb,
NULL); /* don't catch exceptions */
}
cogl_texture_allocate (tex, NULL);
return tex;
}
CoglTexture *
test_utils_texture_new_from_data (CoglContext *ctx,
int width,
int height,
TestUtilsTextureFlags flags,
CoglPixelFormat format,
int rowstride,
const uint8_t *data)
{
CoglBitmap *bmp;
CoglTexture *tex;
g_assert_cmpint (format, !=, COGL_PIXEL_FORMAT_ANY);
g_assert (data != NULL);
/* Wrap the data into a bitmap */
bmp = cogl_bitmap_new_for_data (ctx,
width, height,
format,
rowstride,
(uint8_t *) data);
tex = test_utils_texture_new_from_bitmap (bmp, flags, TRUE);
cogl_object_unref (bmp);
return tex;
}
static void
on_before_tests (MetaContext *context)
{
MetaBackend *backend = meta_context_get_backend (context);
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglOffscreen *offscreen;
CoglTexture2D *tex;
GError *error = NULL;
test_ctx = clutter_backend_get_cogl_context (clutter_backend);
tex = cogl_texture_2d_new_with_size (test_ctx, FB_WIDTH, FB_HEIGHT);
g_assert_nonnull (tex);
offscreen = cogl_offscreen_new_with_texture (COGL_TEXTURE (tex));
g_assert_nonnull (offscreen);
test_fb = COGL_FRAMEBUFFER (offscreen);
if (!cogl_framebuffer_allocate (test_fb, &error))
g_error ("Failed to allocate framebuffer: %s", error->message);
cogl_framebuffer_clear4f (test_fb,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH |
COGL_BUFFER_BIT_STENCIL,
0, 0, 0, 1);
}
static void
on_after_tests (MetaContext *context)
{
g_clear_object (&test_fb);
}
MetaContext *
meta_create_cogl_test_context (int argc,
char **argv)
{
MetaContext *context = NULL;
context = meta_create_test_context (META_CONTEXT_TEST_TYPE_HEADLESS,
META_CONTEXT_TEST_FLAG_NO_X11);
g_assert (meta_context_configure (context, &argc, &argv, NULL));
if (g_strcmp0 ("COGL_TEST_VERBOSE", "1") == 0)
cogl_test_is_verbose = TRUE;
g_signal_connect (context, "before-tests",
G_CALLBACK (on_before_tests), NULL);
g_signal_connect (context, "after-tests",
G_CALLBACK (on_after_tests), NULL);
return context;
}

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/*
* Copyright (C) 2022 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#ifndef COGL_TEST_UTILS_H
#define COGL_TEST_UTILS_H
#include "meta-test/meta-context-test.h"
/**
* TestUtilsTextureFlags:
* @TEST_UTILS_TEXTURE_NONE: No flags specified
* @TEST_UTILS_TEXTURE_NO_AUTO_MIPMAP: Disables the automatic generation of
* the mipmap pyramid from the base level image whenever it is
* updated. The mipmaps are only generated when the texture is
* rendered with a mipmap filter so it should be free to leave out
* this flag when using other filtering modes
* @TEST_UTILS_TEXTURE_NO_SLICING: Disables the slicing of the texture
* @TEST_UTILS_TEXTURE_NO_ATLAS: Disables the insertion of the texture inside
* the texture atlas used by Cogl
*
* Flags to pass to the test_utils_texture_new_* family of functions.
*/
typedef enum
{
TEST_UTILS_TEXTURE_NONE = 0,
TEST_UTILS_TEXTURE_NO_AUTO_MIPMAP = 1 << 0,
TEST_UTILS_TEXTURE_NO_SLICING = 1 << 1,
TEST_UTILS_TEXTURE_NO_ATLAS = 1 << 2
} TestUtilsTextureFlags;
extern CoglContext *test_ctx;
extern CoglFramebuffer *test_fb;
#define FB_WIDTH 512
#define FB_HEIGHT 512
#define COGL_TEST_SUITE(units) \
int \
main (int argc, \
char **argv) \
{ \
g_autoptr (MetaContext) context = NULL; \
\
context = meta_create_cogl_test_context (argc, argv); \
\
units \
\
return meta_context_test_run_tests (META_CONTEXT_TEST (context), \
META_TEST_RUN_FLAG_NONE); \
}
MetaContext * meta_create_cogl_test_context (int argc,
char **argv);
/*
* test_utils_texture_new_with_size:
* @context: A #CoglContext
* @width: width of texture in pixels.
* @height: height of texture in pixels.
* @flags: Optional flags for the texture, or %TEST_UTILS_TEXTURE_NONE
* @components: What texture components are required
*
* Creates a new #CoglTexture with the specified dimensions and pixel format.
*
* The storage for the texture is not necessarily created before this
* function returns. The storage can be explicitly allocated using
* cogl_texture_allocate() or preferably you can let Cogl
* automatically allocate the storage lazily when uploading data when
* Cogl may know more about how the texture will be used and can
* optimize how it is allocated.
*
* Return value: A newly created #CoglTexture
*/
CoglTexture * test_utils_texture_new_with_size (CoglContext *ctx,
int width,
int height,
TestUtilsTextureFlags flags,
CoglTextureComponents components);
/*
* test_utils_texture_new_from_data:
* @context: A #CoglContext
* @width: width of texture in pixels
* @height: height of texture in pixels
* @flags: Optional flags for the texture, or %TEST_UTILS_TEXTURE_NONE
* @format: the #CoglPixelFormat the buffer is stored in in RAM
* @rowstride: the memory offset in bytes between the starts of
* scanlines in @data
* @data: pointer the memory region where the source buffer resides
* @error: A #GError to catch exceptional errors or %NULL
*
* Creates a new #CoglTexture based on data residing in memory.
*
* Note: If the given @format has an alpha channel then the data
* will be loaded into a premultiplied internal format. If you want
* to avoid having the source data be premultiplied then you can
* either specify that the data is already premultiplied or use
* test_utils_texture_new_from_bitmap which lets you explicitly
* request whether the data should internally be premultipled or not.
*
* Return value: A newly created #CoglTexture or %NULL on failure
*/
CoglTexture *
test_utils_texture_new_from_data (CoglContext *ctx,
int width,
int height,
TestUtilsTextureFlags flags,
CoglPixelFormat format,
int rowstride,
const uint8_t *data);
/*
* test_utils_texture_new_from_bitmap:
* @bitmap: A #CoglBitmap pointer
* @flags: Optional flags for the texture, or %TEST_UTILS_TEXTURE_NONE
* @premultiplied: Whether the texture should hold premultipled data.
* (if the bitmap already holds premultiplied data
* and %TRUE is given then no premultiplication will
* be done. The data will be premultipled while
* uploading if the bitmap has an alpha channel but
* does not already have a premultiplied format.)
*
* Creates a #CoglTexture from a #CoglBitmap.
*
* Return value: A newly created #CoglTexture or %NULL on failure
*/
CoglTexture *
test_utils_texture_new_from_bitmap (CoglBitmap *bitmap,
TestUtilsTextureFlags flags,
gboolean premultiplied);
/*
* test_utils_check_pixel:
* @framebuffer: The #CoglFramebuffer to read from
* @x: x coordinate of the pixel to test
* @y: y coordinate of the pixel to test
* @pixel: An integer of the form 0xRRGGBBAA representing the expected
* pixel value
*
* This performs reads a pixel on the given cogl @framebuffer and
* asserts that it matches the given color. The alpha channel of the
* color is ignored. The pixels are converted to a string and compared
* with g_assert_cmpstr so that if the comparison fails then the
* assert will display a meaningful message
*/
void
test_utils_check_pixel (CoglFramebuffer *framebuffer,
int x,
int y,
uint32_t expected_pixel);
/**
* @framebuffer: The #CoglFramebuffer to read from
* @x: x coordinate of the pixel to test
* @y: y coordinate of the pixel to test
* @pixel: An integer of the form 0xRRGGBBAA representing the expected
* pixel value
*
* This performs reads a pixel on the given cogl @framebuffer and
* asserts that it matches the given color. The alpha channel is also
* checked unlike with test_utils_check_pixel(). The pixels are
* converted to a string and compared with g_assert_cmpstr so that if
* the comparison fails then the assert will display a meaningful
* message.
*/
void
test_utils_check_pixel_and_alpha (CoglFramebuffer *fb,
int x,
int y,
uint32_t expected_pixel);
/*
* test_utils_check_pixel:
* @framebuffer: The #CoglFramebuffer to read from
* @x: x coordinate of the pixel to test
* @y: y coordinate of the pixel to test
* @pixel: An integer of the form 0xrrggbb representing the expected pixel value
*
* This performs reads a pixel on the given cogl @framebuffer and
* asserts that it matches the given color. The alpha channel of the
* color is ignored. The pixels are converted to a string and compared
* with g_assert_cmpstr so that if the comparison fails then the
* assert will display a meaningful message
*/
void
test_utils_check_pixel_rgb (CoglFramebuffer *framebuffer,
int x,
int y,
int r,
int g,
int b);
/*
* test_utils_check_region:
* @framebuffer: The #CoglFramebuffer to read from
* @x: x coordinate of the region to test
* @y: y coordinate of the region to test
* @width: width of the region to test
* @height: height of the region to test
* @pixel: An integer of the form 0xrrggbb representing the expected region color
*
* Performs a read pixel on the specified region of the given cogl
* @framebuffer and asserts that it matches the given color. The alpha
* channel of the color is ignored. The pixels are converted to a
* string and compared with g_assert_cmpstr so that if the comparison
* fails then the assert will display a meaningful message
*/
void
test_utils_check_region (CoglFramebuffer *framebuffer,
int x,
int y,
int width,
int height,
uint32_t expected_rgba);
/*
* test_utils_compare_pixel:
* @screen_pixel: A pixel stored in memory
* @expected_pixel: The expected RGBA value
*
* Compares a pixel from a buffer to an expected value. The pixels are
* converted to a string and compared with g_assert_cmpstr so that if
* the comparison fails then the assert will display a meaningful
* message.
*/
void
test_utils_compare_pixel (const uint8_t *screen_pixel,
uint32_t expected_pixel);
/*
* test_utils_compare_pixel_and_alpha:
* @screen_pixel: A pixel stored in memory
* @expected_pixel: The expected RGBA value
*
* Compares a pixel from a buffer to an expected value. This is
* similar to test_utils_compare_pixel() except that it doesn't ignore
* the alpha component.
*/
void
test_utils_compare_pixel_and_alpha (const uint8_t *screen_pixel,
uint32_t expected_pixel);
/*
* test_utils_create_color_texture:
* @context: A #CoglContext
* @color: A color to put in the texture
*
* Creates a 1x1-pixel RGBA texture filled with the given color.
*/
CoglTexture *
test_utils_create_color_texture (CoglContext *context,
uint32_t color);
/* cogl_test_verbose:
*
* Queries if the user asked for verbose output or not.
*/
gboolean
cogl_test_verbose (void);
/* test_util_is_pot:
* @number: A number to test
*
* Returns whether the given integer is a power of two
*/
static inline gboolean
test_utils_is_pot (unsigned int number)
{
/* Make sure there is only one bit set */
return (number & (number - 1)) == 0;
}
#endif /* COGL_TEST_UTILS_H */

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cogl_tests = [
]
cogl_test_conformance_includes = [
tests_includepath,
cogl_includepath,
]
cogl_test_c_args = [
cogl_debug_c_args,
'-DCOGL_ENABLE_EXPERIMENTAL_API',
'-DCOGL_DISABLE_DEPRECATED',
'-DCOGL_DISABLE_DEPRECATION_WARNINGS',
'-DTESTS_DATADIR="@0@/tests/data"'.format(cogl_srcdir),
'-DGETTEXT_PACKAGE="@0@"'.format(meson.project_name()),
]
test_env = environment()
test_env.set('G_TEST_SRCDIR', meson.current_source_dir())
test_env.set('G_TEST_BUILDDIR', meson.current_build_dir())
test_env.set('G_ENABLE_DIAGNOSTIC', '0')
test_env.set('MUTTER_TEST_PLUGIN_PATH', '@0@'.format(default_plugin.full_path()))
cogl_test_variants = [ 'gl', 'gl3', 'gles2' ]
foreach cogl_test: cogl_tests
test_name = 'cogl-' + cogl_test
test_executable = executable(test_name,
sources: [
cogl_test_utils,
cogl_test + '.c',
],
c_args: cogl_test_c_args,
include_directories: cogl_test_conformance_includes,
dependencies: [
libmutter_test_dep,
],
install_rpath: pkglibdir,
)
foreach variant: cogl_test_variants
variant_test_env = test_env
variant_test_env.set('COGL_DRIVER', variant)
test(test_name + '-' + variant, test_executable,
suite: ['cogl', 'cogl/conform'],
env: variant_test_env,
is_parallel: false,
)
endforeach
endforeach

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src/tests/cogl/meson.build Normal file
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subdir('conform')

9
src/tests/meson.build
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@ -18,6 +18,11 @@ mutter_test_sources = [
libmutter_test_name = 'mutter-test-' + libmutter_api_version
cogl_test_utils = files (
'cogl-test-utils.c',
'cogl-test-utils.h',
)
clutter_test_utils = files (
'clutter-test-utils.c',
'clutter-test-utils.h',
@ -67,6 +72,10 @@ pkg.generate(libmutter_test,
install_dir: pcdir,
)
if have_cogl_tests
subdir('cogl')
endif
if have_clutter_tests
subdir('clutter')
endif