add cairo

1 files changed, 322 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/cairo-test.h b/libs/cairo-1.16.0/test/cairo-test.h
new file mode 100644
index 0000000..7e9605f
--- /dev/null
+++ b/libs/cairo-1.16.0/test/cairo-test.h
@@ -0,0 +1,322 @@
+/*
+ * Copyright © 2004 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef _CAIRO_TEST_H_
+#define _CAIRO_TEST_H_
+
+#include "cairo-boilerplate.h"
+
+#include <stdarg.h>
+
+CAIRO_BEGIN_DECLS
+
+#if   HAVE_STDINT_H
+# include <stdint.h>
+#elif HAVE_INTTYPES_H
+# include <inttypes.h>
+#elif HAVE_SYS_INT_TYPES_H
+# include <sys/int_types.h>
+#elif defined(_MSC_VER)
+typedef __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+# ifndef HAVE_UINT64_T
+#  define HAVE_UINT64_T 1
+# endif
+#else
+#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, \etc.)
+#endif
+
+#ifdef _MSC_VER
+#define _USE_MATH_DEFINES
+
+#include <float.h>
+#define isnan(x) _isnan(x)
+
+#endif
+
+#if HAVE_FENV_H
+# include <fenv.h>
+#endif
+/* The following are optional in C99, so define them if they aren't yet */
+#ifndef FE_DIVBYZERO
+#define FE_DIVBYZERO 0
+#endif
+#ifndef FE_INEXACT
+#define FE_INEXACT 0
+#endif
+#ifndef FE_INVALID
+#define FE_INVALID 0
+#endif
+#ifndef FE_OVERFLOW
+#define FE_OVERFLOW 0
+#endif
+#ifndef FE_UNDERFLOW
+#define FE_UNDERFLOW 0
+#endif
+
+#include <math.h>
+
+static inline double
+cairo_test_NaN (void)
+{
+#ifdef _MSC_VER
+    /* MSVC strtod("NaN", NULL) returns 0.0 */
+    union {
+	uint32_t i[2];
+	double d;
+    } nan = {{0xffffffff, 0x7fffffff}};
+    return nan.d;
+#else
+    return strtod("NaN", NULL);
+#endif
+}
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+#define CAIRO_TEST_OUTPUT_DIR "output"
+
+#define CAIRO_TEST_LOG_SUFFIX ".log"
+
+#define CAIRO_TEST_FONT_FAMILY "DejaVu"
+
+/* What is a fail and what isn't?
+ * When running the test suite we want to detect unexpected output. This
+ * can be caused by a change we have made to cairo itself, or a change
+ * in our environment. To capture this we classify the expected output into 3
+ * classes:
+ *
+ *   REF  -- Perfect output.
+ *           Might be different for each backend, due to slight implementation
+ *           differences.
+ *
+ *   NEW  -- A new failure. We have uncovered a bug within cairo and have
+ *           recorded the current failure (along with the expected output
+ *           if possible!) so we can detect any changes in our attempt to
+ *           fix the bug.
+ *
+ *  XFAIL -- An external failure. We believe the cairo output is perfect,
+ *           but an external renderer is causing gross failure.
+ *           (We also use this to capture current WONTFIX issues within cairo,
+ *           such as overflow in internal coordinates, so as not to distract
+ *           us when regression testing.)
+ *
+ *  If no REF is given for a test, then it is assumed to be XFAIL.
+ */
+#define CAIRO_TEST_REF_SUFFIX ".ref"
+#define CAIRO_TEST_XFAIL_SUFFIX ".xfail"
+#define CAIRO_TEST_NEW_SUFFIX ".new"
+
+#define CAIRO_TEST_OUT_SUFFIX ".out"
+#define CAIRO_TEST_DIFF_SUFFIX ".diff"
+
+#define CAIRO_TEST_PNG_EXTENSION ".png"
+#define CAIRO_TEST_OUT_PNG CAIRO_TEST_OUT_SUFFIX CAIRO_TEST_PNG_EXTENSION
+#define CAIRO_TEST_REF_PNG CAIRO_TEST_REF_SUFFIX CAIRO_TEST_PNG_EXTENSION
+#define CAIRO_TEST_DIFF_PNG CAIRO_TEST_DIFF_SUFFIX CAIRO_TEST_PNG_EXTENSION
+
+typedef enum cairo_test_status {
+    CAIRO_TEST_SUCCESS = 0,
+    CAIRO_TEST_NO_MEMORY,
+    CAIRO_TEST_FAILURE,
+    CAIRO_TEST_NEW,
+    CAIRO_TEST_XFAILURE,
+    CAIRO_TEST_ERROR,
+    CAIRO_TEST_CRASHED,
+    CAIRO_TEST_UNTESTED = 77 /* match automake's skipped exit status */
+} cairo_test_status_t;
+
+typedef struct _cairo_test_context cairo_test_context_t;
+typedef struct _cairo_test cairo_test_t;
+
+typedef cairo_test_status_t
+(cairo_test_preamble_function_t) (cairo_test_context_t *ctx);
+
+typedef cairo_test_status_t
+(cairo_test_draw_function_t) (cairo_t *cr, int width, int height);
+
+struct _cairo_test {
+    const char *name;
+    const char *description;
+    const char *keywords;
+    const char *requirements;
+    double width;
+    double height;
+    cairo_test_preamble_function_t *preamble;
+    cairo_test_draw_function_t *draw;
+};
+
+/* The standard test interface which works by examining result image.
+ *
+ * CAIRO_TEST() constructs a test which will be called once before (the
+ * preamble callback), and then once for each testable backend (the draw
+ * callback). The following checks will be performed for each backend:
+ *
+ * 1) If preamble() returns CAIRO_TEST_UNTESTED, the test is skipped.
+ *
+ * 2) If preamble() does not return CAIRO_TEST_SUCCESS, the test fails.
+ *
+ * 3) If draw() does not return CAIRO_TEST_SUCCESS then this backend
+ *    fails.
+ *
+ * 4) Otherwise, if cairo_status(cr) indicates an error then this
+ *    backend fails.
+ *
+ * 5) Otherwise, if the image size is 0, then this backend passes.
+ *
+ * 6) Otherwise, if every channel of every pixel exactly matches the
+ *    reference image then this backend passes. If not, this backend
+ *    fails.
+ *
+ * The overall test result is PASS if and only if there is at least
+ * one backend that is tested and if all tested backend pass according
+ * to the four criteria above.
+ */
+#define CAIRO_TEST(name, description, keywords, requirements, width, height, preamble, draw) \
+void _register_##name (void); \
+void _register_##name (void) { \
+    static cairo_test_t test = { \
+	#name, description, \
+	keywords, requirements, \
+	width, height, \
+	preamble, draw \
+    }; \
+    cairo_test_register (&test); \
+}
+
+void
+cairo_test_register (cairo_test_t *test);
+
+/* The full context for the test.
+ * For ordinary tests (using the CAIRO_TEST()->draw interface) the context
+ * is passed to the draw routine via user_data on the cairo_t.
+ * The reason why the context is not passed as an explicit parameter is that
+ * it is rarely required by the test itself and by removing the parameter
+ * we can keep the draw routines simple and serve as example code.
+ *
+ * In contrast, for the preamble phase the context is passed as the only
+ * parameter.
+ */
+struct _cairo_test_context {
+    const cairo_test_t *test;
+    const char *test_name;
+
+    FILE *log_file;
+    const char *output;
+    const char *srcdir; /* directory containing sources and input data */
+    const char *refdir; /* directory containing reference images */
+
+    char *ref_name; /* cache of the current reference image */
+    cairo_surface_t *ref_image;
+    cairo_surface_t *ref_image_flattened;
+
+    size_t num_targets;
+    cairo_bool_t limited_targets;
+    const cairo_boilerplate_target_t **targets_to_test;
+    cairo_bool_t own_targets;
+
+    int malloc_failure;
+    int last_fault_count;
+
+    int timeout;
+};
+
+/* Retrieve the test context from the cairo_t, used for logging, paths etc */
+const cairo_test_context_t *
+cairo_test_get_context (cairo_t *cr);
+
+
+/* Print a message to the log file, ala printf. */
+void
+cairo_test_log (const cairo_test_context_t *ctx,
+	        const char *fmt, ...) CAIRO_BOILERPLATE_PRINTF_FORMAT(2, 3);
+void
+cairo_test_logv (const cairo_test_context_t *ctx,
+	        const char *fmt, va_list ap) CAIRO_BOILERPLATE_PRINTF_FORMAT(2, 0);
+
+/* Helper functions that take care of finding source images even when
+ * building in a non-srcdir manner, (i.e. the tests will be run in a
+ * directory that is different from the one where the source image
+ * exists). */
+cairo_surface_t *
+cairo_test_create_surface_from_png (const cairo_test_context_t *ctx,
+	                            const char *filename);
+
+cairo_pattern_t *
+cairo_test_create_pattern_from_png (const cairo_test_context_t *ctx,
+	                            const char *filename);
+
+void
+cairo_test_paint_checkered (cairo_t *cr);
+
+#define CAIRO_TEST_DOUBLE_EQUALS(a,b)  (fabs((a)-(b)) < 0.00001)
+
+cairo_bool_t
+cairo_test_is_target_enabled (const cairo_test_context_t *ctx,
+	                      const char *target);
+
+char *
+cairo_test_get_name (const cairo_test_t *test);
+
+cairo_bool_t
+cairo_test_malloc_failure (const cairo_test_context_t *ctx,
+	                   cairo_status_t status);
+
+cairo_test_status_t
+cairo_test_status_from_status (const cairo_test_context_t *ctx,
+			       cairo_status_t status);
+
+char *
+cairo_test_reference_filename (const cairo_test_context_t *ctx,
+			       const char *base_name,
+			       const char *test_name,
+			       const char *target_name,
+			       const char *base_target_name,
+			       const char *format,
+			       const char *suffix,
+			       const char *extension);
+
+cairo_surface_t *
+cairo_test_get_reference_image (cairo_test_context_t *ctx,
+				const char *filename,
+				cairo_bool_t flatten);
+
+cairo_bool_t
+cairo_test_mkdir (const char *path);
+
+CAIRO_END_DECLS
+
+#endif