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backend/test: Add support for gamma getting/setting

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The set gamma is just stored in the object, nothing else. It's
initialized to a linear gamma ramp from 0 to UINT16_MAX for each color
channel.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2165>
This commit is contained in:
Jonas Ådahl 2021-12-06 17:17:53 +01:00
parent b7d3c9e3c5
commit a232eb263f
2 changed files with 90 additions and 2 deletions
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85
src/tests/meta-monitor-manager-test.c
View file

@ -483,12 +483,93 @@ meta_output_test_class_init (MetaOutputTestClass *klass)
{
}
static void
meta_crtc_test_init (MetaCrtcTest *crtc_test)
#define GAMMA_SIZE 256
static size_t
meta_crtc_test_get_gamma_lut_size (MetaCrtc *crtc)
{
return GAMMA_SIZE;
}
static MetaGammaLut *
meta_crtc_test_get_gamma_lut (MetaCrtc *crtc)
{
MetaCrtcTest *crtc_test = META_CRTC_TEST (crtc);
MetaGammaLut *lut;
lut = g_new0 (MetaGammaLut, 1);
lut->size = crtc_test->gamma.size;
lut->red = g_memdup2 (crtc_test->gamma.red,
lut->size * sizeof (uint16_t));
lut->green = g_memdup2 (crtc_test->gamma.green,
lut->size * sizeof (uint16_t));
lut->blue = g_memdup2 (crtc_test->gamma.blue,
lut->size * sizeof (uint16_t));
return lut;
}
static void
meta_crtc_test_set_gamma_lut (MetaCrtc *crtc,
const MetaGammaLut *lut)
{
MetaCrtcTest *crtc_test = META_CRTC_TEST (crtc);
g_assert_cmpint (crtc_test->gamma.size, ==, lut->size);
g_free (crtc_test->gamma.red);
g_free (crtc_test->gamma.green);
g_free (crtc_test->gamma.blue);
crtc_test->gamma.red = g_memdup2 (lut->red,
sizeof (uint16_t) * lut->size);
crtc_test->gamma.green = g_memdup2 (lut->green,
sizeof (uint16_t) * lut->size);
crtc_test->gamma.blue = g_memdup2 (lut->blue,
sizeof (uint16_t) * lut->size);
}
static void
meta_crtc_test_finalize (GObject *object)
{
MetaCrtcTest *crtc_test = META_CRTC_TEST (object);
g_free (crtc_test->gamma.red);
g_free (crtc_test->gamma.green);
g_free (crtc_test->gamma.blue);
G_OBJECT_CLASS (meta_crtc_test_parent_class)->finalize (object);
}
static void
meta_crtc_test_class_init (MetaCrtcTestClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MetaCrtcClass *crtc_class = META_CRTC_CLASS (klass);
object_class->finalize = meta_crtc_test_finalize;
crtc_class->get_gamma_lut_size = meta_crtc_test_get_gamma_lut_size;
crtc_class->get_gamma_lut = meta_crtc_test_get_gamma_lut;
crtc_class->set_gamma_lut = meta_crtc_test_set_gamma_lut;
}
static void
meta_crtc_test_init (MetaCrtcTest *crtc_test)
{
int i;
crtc_test->gamma.size = GAMMA_SIZE;
crtc_test->gamma.red = g_new0 (uint16_t, GAMMA_SIZE);
crtc_test->gamma.green = g_new0 (uint16_t, GAMMA_SIZE);
crtc_test->gamma.blue = g_new0 (uint16_t, GAMMA_SIZE);
for (i = 0; i < GAMMA_SIZE; i++)
{
uint16_t gamma;
gamma = ((float) i / GAMMA_SIZE) * UINT16_MAX;
crtc_test->gamma.red[i] = gamma;
crtc_test->gamma.green[i] = gamma;
crtc_test->gamma.blue[i] = gamma;
}
}

7
src/tests/meta-monitor-manager-test.h
View file

@ -35,6 +35,13 @@ typedef struct _MetaMonitorTestSetup
struct _MetaCrtcTest
{
MetaCrtc parent;
struct {
size_t size;
uint16_t *red;
uint16_t *green;
uint16_t *blue;
} gamma;
};
struct _MetaOutputTest