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Evas: Add a test case for image buffer_map. 

This:
1. opens a file
2. maps its data and vaguely verifies it
3. writes data to it
4. writes data to it with a GRY8 map
5. verifies that the final image has all the proper pixels
This commit is contained in:
Jean-Philippe Andre 2016-03-23 17:43:07 +09:00
parent 488854af2b
commit ba4ffba8c1
1 changed files with 167 additions and 0 deletions
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167
src/tests/evas/evas_test_image.c
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@ -654,6 +654,172 @@ START_TEST(evas_object_image_defaults)
}
END_TEST
// FIXME: belongs to another file
START_TEST(evas_object_image_map_unmap)
{
Evas *e = _setup_evas();
Evas_Object *o, *o2;
void *data;
int len, stride;
int w, h, rx, ry, rw, rh;
Efl_Gfx_Colorspace cs;
Eina_Tmpstr *tmp;
int fd;
uint32_t *data32;
uint8_t *data8;
Eina_Bool all_white = 1, all_transparent = 1;
const char *imgpath = TESTS_IMG_DIR "/Pic4.png";
o = eo_add(EFL_CANVAS_IMAGE_CLASS, e);
efl_file_set(o, imgpath, NULL);
efl_gfx_view_size_get(o, &w, &h);
cs = efl_gfx_buffer_colorspace_get(o);
rx = (w / 4) & ~3;
ry = (h / 4) & ~3;
rw = (w / 2) & ~3;
rh = (h / 2) & ~3;
// same cspace, full image
data = efl_gfx_buffer_map(o, &len, EFL_GFX_BUFFER_ACCESS_MODE_READ, 0, 0, w, h, cs, &stride);
fail_if(!data);
fail_if(!len);
fail_if(!stride);
efl_gfx_buffer_unmap(o, data, len);
// same cspace, partial image
data = efl_gfx_buffer_map(o, &len, EFL_GFX_BUFFER_ACCESS_MODE_READ, rx, ry, rw, rh, cs, &stride);
fail_if(!data);
fail_if(!len);
fail_if(!stride);
efl_gfx_buffer_unmap(o, data, len);
// argb cspace, full image
data = efl_gfx_buffer_map(o, &len, EFL_GFX_BUFFER_ACCESS_MODE_READ, 0, 0, w, h, EFL_GFX_COLORSPACE_ARGB8888, &stride);
fail_if(!data);
fail_if(!len);
fail_if(!stride);
data32 = data;
for (int k = 0; (k < len) && (all_white || all_transparent); k++)
{
if (data32[k])
all_transparent = 0;
if (data32[k] != 0xFFFFFFFF)
all_white = 0;
}
fail_if(all_white || all_transparent);
efl_gfx_buffer_unmap(o, data, len);
// argb cspace, partial image
data = efl_gfx_buffer_map(o, &len, EFL_GFX_BUFFER_ACCESS_MODE_READ, rx, ry, rw, rh, EFL_GFX_COLORSPACE_ARGB8888, &stride);
fail_if(!data);
fail_if(!len);
fail_if(!stride);
efl_gfx_buffer_unmap(o, data, len);
// argb cspace, partial image, write
data = efl_gfx_buffer_map(o, &len, EFL_GFX_BUFFER_ACCESS_MODE_WRITE, rx, ry, rw, rh, EFL_GFX_COLORSPACE_ARGB8888, &stride);
fail_if(!data);
fail_if(!len);
fail_if(!stride);
data32 = data;
for (int y = 0; y < rh; y += 2)
for (int x = 0; x < rw; x++)
{
data32[y*stride/4 + x] = 0xFF00FF00;
data32[(y+1)*stride/4 + x] = 0xFFFF0000;
}
efl_gfx_buffer_unmap(o, data, len);
// argb cspace, partial image, write
data = efl_gfx_buffer_map(o, &len, EFL_GFX_BUFFER_ACCESS_MODE_READ| EFL_GFX_BUFFER_ACCESS_MODE_WRITE,
rx, ry, rw, rh / 2, EFL_GFX_COLORSPACE_GRY8, &stride);
fail_if(!data);
fail_if(!len);
fail_if(!stride);
data8 = data;
for (int y = 0; y < rh / 4; y++)
for (int x = 0; x < rw; x++)
data8[y*stride + x] = x & 0xFF;
efl_gfx_buffer_unmap(o, data, len);
// save file, verify its pixels
fd = eina_file_mkstemp("/tmp/evas-test.XXXXXX.png", &tmp);
close(fd);
if (efl_file_save(o, tmp, NULL, NULL))
{
Efl_Gfx_Colorspace cs2;
int w2, h2, stride2, len2;
uint32_t *data2, *orig;
int x, y;
o2 = eo_add(EFL_CANVAS_IMAGE_CLASS, e);
efl_file_set(o2, tmp, NULL);
efl_gfx_view_size_get(o, &w2, &h2);
cs2 = efl_gfx_buffer_colorspace_get(o2);
// unlink now to not leave any crap after failing the test
unlink(tmp);
fail_if(w2 != w);
fail_if(h2 != h);
orig = efl_gfx_buffer_map(o, &len, EFL_GFX_BUFFER_ACCESS_MODE_READ, 0, 0, w, h, EFL_GFX_COLORSPACE_ARGB8888, &stride);
fail_if(!orig);
fail_if(!len);
fail_if(!stride);
data2 = efl_gfx_buffer_map(o2, &len2, EFL_GFX_BUFFER_ACCESS_MODE_READ, 0, 0, w2, h2, EFL_GFX_COLORSPACE_ARGB8888, &stride2);
fail_if(!data2);
fail_if(len2 != len);
fail_if(stride2 != stride);
// first quarter: same image
for (y = 0; y < h / 4; y++)
for (x = 0; x < w; x++)
fail_if(orig[y*stride/4 + x] != data2[y*stride2/4+x], "pixels differ [1]");
// middle zone top: grey gradient
for (y = ry; y < (ry + rh / 4); y++)
for (x = rx; x < rx + rw; x++)
{
uint32_t c = (x - rx) & 0xFF;
c = 0xFF000000 | (c << 16) | (c << 8) | c;
fail_if(data2[y*stride/4 + x] != c, "pixels differ [2]");
}
// middle zone: grey image
for (y = (ry + rh / 4 + 1); y < (ry + rh / 2); y++)
for (x = rx; x < rx + rw; x++)
{
uint32_t c = data2[y*stride/4 + x] & 0xFF;
c = 0xFF000000 | (c << 16) | (c << 8) | c;
fail_if(data2[y*stride/4 + x] != c, "pixels differ [2bis]");
}
// next lines: green & red
y = ry + rh / 2;
for (x = rx; x < rx + rw; x++)
{
fail_if(data2[y*stride/4 + x] != 0xFF00FF00, "pixels differ [3]");
fail_if(data2[(y+1)*stride/4 + x] != 0xFFFF0000, "pixels differ [4]");
}
efl_gfx_buffer_unmap(o, orig, len);
efl_gfx_buffer_unmap(o2, data2, len2);
}
else unlink(tmp);
eina_tmpstr_del(tmp);
// TODO: test copy-on-write
// TODO: test more color conversions
evas_free(e);
evas_shutdown();
}
END_TEST
void evas_test_image_object(TCase *tc)
{
tcase_add_test(tc, evas_object_image_defaults);
@ -666,6 +832,7 @@ void evas_test_image_object(TCase *tc)
#if BUILD_LOADER_PNG
tcase_add_test(tc, evas_object_image_all_loader_data);
tcase_add_test(tc, evas_object_image_buggy);
tcase_add_test(tc, evas_object_image_map_unmap);
#endif
tcase_add_test(tc, evas_object_image_partially_load_orientation);
}