Merge commit 'e0b7d30fd437292c88141fb08d60681870b86c6e' as 'subprojects/pixpat'

1 files changed, 68 insertions, 0 deletions

diff --git a/subprojects/pixpat/pixpat-native/tests/test_pixpat_c.c b/subprojects/pixpat/pixpat-native/tests/test_pixpat_c.c
new file mode 100644
index 0000000..e80780a
--- /dev/null
+++ b/subprojects/pixpat/pixpat-native/tests/test_pixpat_c.c
@@ -0,0 +1,68 @@
+/*
+ * Native C smoke test for libpixpat.
+ *
+ * Sole purpose: prove that <pixpat/pixpat.h> compiles as C and that the
+ * library links and runs from a C consumer. Behavioral coverage lives
+ * in the Python suite; this file exists to catch C-only regressions in
+ * the public header (stray C++-isms, missing extern "C", etc.) that a
+ * C++ test cannot detect.
+ */
+
+#include <pixpat/pixpat.h>
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* CHECK always evaluates its expression so the test still runs in
+ * release builds where assert() is compiled out. */
+#define CHECK(expr) do {                                                \
+		if (!(expr)) {                                          \
+			fprintf(stderr, "%s:%d: CHECK failed: %s\n",    \
+				__FILE__, __LINE__, #expr);             \
+			return 1;                                       \
+		}                                                       \
+} while (0)
+
+int main(void)
+{
+	CHECK(pixpat_format_count() > 0);
+	CHECK(pixpat_format_supported("XRGB8888") == 1);
+
+	const uint32_t w = 32, h = 16;
+	uint8_t *rgb = (uint8_t *)calloc((size_t)w * h * 4, 1);
+	uint8_t *wide = (uint8_t *)calloc((size_t)w * h * 8, 1);
+	CHECK(rgb && wide);
+
+	pixpat_buffer fb;
+	memset(&fb, 0, sizeof(fb));
+	fb.format = "XRGB8888";
+	fb.width = w;
+	fb.height = h;
+	fb.num_planes = 1;
+	fb.planes[0] = rgb;
+	fb.strides[0] = w * 4;
+
+	pixpat_pattern_opts pat;
+	memset(&pat, 0, sizeof(pat));
+	pat.rec = PIXPAT_REC_BT709;
+	pat.range = PIXPAT_RANGE_LIMITED;
+	CHECK(pixpat_draw_pattern(&fb, "smpte", &pat) == 0);
+	/* Cover the NULL-opts path. */
+	CHECK(pixpat_draw_pattern(&fb, NULL, NULL) == 0);
+
+	pixpat_buffer dst;
+	memset(&dst, 0, sizeof(dst));
+	dst.format = "ABGR16161616";
+	dst.width = w;
+	dst.height = h;
+	dst.num_planes = 1;
+	dst.planes[0] = wide;
+	dst.strides[0] = w * 8;
+	CHECK(pixpat_convert(&dst, &fb, NULL) == 0);
+
+	free(rgb);
+	free(wide);
+	return 0;
+}