mutter/test-fixtures/test-utils.c

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#include <config.h>
#include <stdlib.h>
#include "test-unit.h"
#include "test-utils.h"
#define FB_WIDTH 512
#define FB_HEIGHT 512
static CoglBool cogl_test_is_verbose;
CoglContext *test_ctx;
CoglFramebuffer *test_fb;
static CoglBool
check_flags (TestFlags flags,
CoglRenderer *renderer)
{
if (flags & TEST_REQUIREMENT_GL &&
Add a GL 3 driver This adds a new CoglDriver for GL 3 called COGL_DRIVER_GL3. When requested, the GLX, EGL and SDL2 winsyss will set the necessary attributes to request a forward-compatible core profile 3.1 context. That means it will have no deprecated features. To simplify the explosion of checks for specific combinations of context->driver, many of these conditionals have now been replaced with private feature flags that are checked instead. The GL and GLES drivers now initialise these private feature flags depending on which driver is used. The fixed function backends now explicitly check whether the fixed function private feature is available which means the GL3 driver will fall back to always using the GLSL progend. Since Rob's latest patches the GLSL progend no longer uses any fixed function API anyway so it should just work. The driver is currently lower priority than COGL_DRIVER_GL so it will not be used unless it is specificly requested. We may want to change this priority at some point because apparently Mesa can make some memory savings if a core profile context is used. In GL 3, getting the combined extensions string with glGetString is deprecated so this patch changes it to use glGetStringi to build up an array of extensions instead. _cogl_context_get_gl_extensions now returns this array instead of trying to return a const string. The caller is expected to free the array. Some issues with this patch: • GL 3 does not support GL_ALPHA format textures. We should probably make this a feature flag or something. Cogl uses this to render text which currently just throws a GL error and breaks so it's pretty important to do something about this before considering the GL3 driver to be stable. • GL 3 doesn't support client side vertex buffers. This probably doesn't matter because CoglBuffer won't normally use malloc'd buffers if VBOs are available, but it might but worth making malloc'd buffers a private feature and forcing it not to use them. • GL 3 doesn't support the default vertex array object. This patch just makes it create and bind a single non-default vertex array object which gets used just like the normal default object. Ideally it would be good to use vertex array objects properly and attach them to a CoglPrimitive to cache the state. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 66c9db993595b3a22e63f4c201ea468bc9b88cb6)
2012-09-26 15:32:36 -04:00
cogl_renderer_get_driver (renderer) != COGL_DRIVER_GL &&
cogl_renderer_get_driver (renderer) != COGL_DRIVER_GL3)
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_NPOT &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_NPOT))
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_TEXTURE_3D &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_3D))
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_TEXTURE_RECTANGLE &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_RECTANGLE))
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_POINT_SPRITE &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_POINT_SPRITE))
{
return FALSE;
}
Add support for per-vertex point sizes This adds a new function to enable per-vertex point size on a pipeline. This can be set with cogl_pipeline_set_per_vertex_point_size(). Once enabled the point size can be set either by drawing with an attribute named 'cogl_point_size_in' or by writing to the 'cogl_point_size_out' builtin from a snippet. There is a feature flag which must be checked for before using per-vertex point sizes. This will only be set on GL >= 2.0 or on GLES 2.0. GL will only let you set a per-vertex point size from GLSL by writing to gl_PointSize. This is only available in GL2 and not in the older GLSL extensions. The per-vertex point size has its own pipeline state flag so that it can be part of the state that affects vertex shader generation. Having to enable the per vertex point size with a separate function is a bit awkward. Ideally it would work like the color attribute where you can just set it for every vertex in your primitive with cogl_pipeline_set_color or set it per-vertex by just using the attribute. This is harder to get working with the point size because we need to generate a different vertex shader depending on what attributes are bound. I think if we wanted to make this work transparently we would still want to internally have a pipeline property describing whether the shader was generated with per-vertex support so that it would work with the shader cache correctly. Potentially we could make the per-vertex property internal and automatically make a weak pipeline whenever the attribute is bound. However we would then also need to automatically detect when an application is writing to cogl_point_size_out from a snippet. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 8495d9c1c15ce389885a9356d965eabd97758115) Conflicts: cogl/cogl-context.c cogl/cogl-pipeline-private.h cogl/cogl-pipeline.c cogl/cogl-private.h cogl/driver/gl/cogl-pipeline-progend-fixed.c cogl/driver/gl/gl/cogl-pipeline-progend-fixed-arbfp.c
2012-11-08 11:56:02 -05:00
if (flags & TEST_REQUIREMENT_PER_VERTEX_POINT_SIZE &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_PER_VERTEX_POINT_SIZE))
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_GLES2_CONTEXT &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_GLES2_CONTEXT))
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_MAP_WRITE &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_MAP_BUFFER_FOR_WRITE))
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_GLSL &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_GLSL))
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_OFFSCREEN &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_OFFSCREEN))
{
return FALSE;
}
if (flags & TEST_REQUIREMENT_FENCE &&
!cogl_has_feature (test_ctx, COGL_FEATURE_ID_FENCE))
{
return FALSE;
}
if (flags & TEST_KNOWN_FAILURE)
{
return FALSE;
}
return TRUE;
}
CoglBool
is_boolean_env_set (const char *variable)
{
char *val = getenv (variable);
CoglBool ret;
if (!val)
return FALSE;
if (g_ascii_strcasecmp (val, "1") == 0 ||
g_ascii_strcasecmp (val, "on") == 0 ||
g_ascii_strcasecmp (val, "true") == 0)
ret = TRUE;
else if (g_ascii_strcasecmp (val, "0") == 0 ||
g_ascii_strcasecmp (val, "off") == 0 ||
g_ascii_strcasecmp (val, "false") == 0)
ret = FALSE;
else
{
g_critical ("Spurious boolean environment variable value (%s=%s)",
variable, val);
ret = TRUE;
}
return ret;
}
void
test_utils_init (TestFlags requirement_flags,
TestFlags known_failure_flags)
{
static int counter = 0;
CoglError *error = NULL;
CoglOnscreen *onscreen = NULL;
CoglDisplay *display;
CoglRenderer *renderer;
CoglBool missing_requirement;
CoglBool known_failure;
if (counter != 0)
g_critical ("We don't support running more than one test at a time\n"
"in a single test run due to the state leakage that can\n"
"cause subsequent tests to fail.\n"
"\n"
"If you want to run all the tests you should run\n"
"$ make test-report");
counter++;
if (is_boolean_env_set ("COGL_TEST_VERBOSE") ||
is_boolean_env_set ("V"))
cogl_test_is_verbose = TRUE;
/* NB: This doesn't have any effect since commit 47444dac of glib
* because the environment variable is read in a magic constructor
* so it is too late to set them here */
if (g_getenv ("G_DEBUG"))
{
char *debug = g_strconcat (g_getenv ("G_DEBUG"), ",fatal-warnings", NULL);
g_setenv ("G_DEBUG", debug, TRUE);
g_free (debug);
}
else
g_setenv ("G_DEBUG", "fatal-warnings", TRUE);
g_setenv ("COGL_X11_SYNC", "1", 0);
test_ctx = cogl_context_new (NULL, &error);
if (!test_ctx)
g_critical ("Failed to create a CoglContext: %s", error->message);
display = cogl_context_get_display (test_ctx);
renderer = cogl_display_get_renderer (display);
missing_requirement = !check_flags (requirement_flags, renderer);
known_failure = !check_flags (known_failure_flags, renderer);
if (is_boolean_env_set ("COGL_TEST_ONSCREEN"))
{
onscreen = cogl_onscreen_new (test_ctx, 640, 480);
test_fb = COGL_FRAMEBUFFER (onscreen);
}
else
{
CoglOffscreen *offscreen;
CoglTexture2D *tex = cogl_texture_2d_new_with_size (test_ctx,
FB_WIDTH, FB_HEIGHT,
COGL_PIXEL_FORMAT_ANY);
offscreen = cogl_offscreen_new_to_texture (COGL_TEXTURE (tex));
test_fb = COGL_FRAMEBUFFER (offscreen);
}
if (!cogl_framebuffer_allocate (test_fb, &error))
g_critical ("Failed to allocate framebuffer: %s", error->message);
if (onscreen)
cogl_onscreen_show (onscreen);
cogl_framebuffer_clear4f (test_fb,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH |
COGL_BUFFER_BIT_STENCIL,
0, 0, 0, 1);
if (missing_requirement)
g_print ("WARNING: Missing required feature[s] for this test\n");
else if (known_failure)
g_print ("WARNING: Test is known to fail\n");
}
void
test_utils_fini (void)
{
if (test_fb)
cogl_object_unref (test_fb);
if (test_ctx)
cogl_object_unref (test_ctx);
}
static CoglBool
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)
{
test_utils_check_pixel (test_fb, x, y, (r << 24) | (g << 16) | (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,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
(uint8_t *) &color,
NULL);
return COGL_TEXTURE (tex_2d);
}
CoglBool
cogl_test_verbose (void)
{
return cogl_test_is_verbose;
}