1 files changed, 86 insertions, 0 deletions
diff --git a/src/tests/lut.c b/src/tests/lut.c
new file mode 100644
index 0000000..4af44ee
--- /dev/null
+++ b/src/tests/lut.c
@@ -0,0 +1,86 @@
+#include "tests.h"
+
+#include <libplacebo/dummy.h>
+#include <libplacebo/shaders/lut.h>
+
+static const char *luts[] = {
+
+    "TITLE \"1D LUT example\"   \n"
+    "LUT_1D_SIZE 11             \n"
+    "# Random comment           \n"
+    "0.0 0.0 0.0                \n"
+    "0.1 0.1 0.1                \n"
+    "0.2 0.2 0.2                \n"
+    "0.3 0.3 0.3                \n"
+    "0.4 0.4 0.4                \n"
+    "0.5 0.5 0.5                \n"
+    "0.6 0.6 0.6                \n"
+    "0.7 0.7 0.7                \n"
+    "0.8 0.8 0.8                \n"
+    "0.9 0.9 0.9                \n"
+    "0.10 0.10 0.10             \n",
+
+    "LUT_3D_SIZE 3              \n"
+    "TITLE \"3D LUT example\"   \n"
+    "0.0 0.0 0.0                \n"
+    "0.5 0.0 0.0                \n"
+    "1.0 0.0 0.0                \n"
+    "0.0 0.5 0.0                \n"
+    "0.5 0.5 0.0                \n"
+    "1.0 0.5 0.0                \n"
+    "0.0 1.0 0.0                \n"
+    "0.5 1.0 0.0                \n"
+    "1.0 1.0 0.0                \n"
+    "0.0 0.0 0.5                \n"
+    "0.5 0.0 0.5                \n"
+    "1.0 0.0 0.5                \n"
+    "0.0 0.5 0.5                \n"
+    "0.5 0.5 0.5                \n"
+    "1.0 0.5 0.5                \n"
+    "0.0 1.0 0.5                \n"
+    "0.5 1.0 0.5                \n"
+    "1.0 1.0 0.5                \n"
+    "0.0 0.0 1.0                \n"
+    "0.5 0.0 1.0                \n"
+    "1.0 0.0 1.0                \n"
+    "0.0 0.5 1.0                \n"
+    "0.5 0.5 1.0                \n"
+    "1.0 0.5 1.0                \n"
+    "0.0 1.0 1.0                \n"
+    "0.5 1.0 1.0                \n"
+    "1.0 1.0 1.0                \n",
+
+    "LUT_1D_SIZE 3              \n"
+    "TITLE \"custom domain\"    \n"
+    "DOMAIN_MAX 255 255 255     \n"
+    "0 0 0                      \n"
+    "128 128 128                \n"
+    "255 255 255                \n"
+
+};
+
+int main()
+{
+    pl_log log = pl_test_logger();
+    pl_gpu gpu = pl_gpu_dummy_create(log, NULL);
+    pl_shader sh = pl_shader_alloc(log, NULL);
+    pl_shader_obj obj = NULL;
+
+    for (int i = 0; i < PL_ARRAY_SIZE(luts); i++) {
+        struct pl_custom_lut *lut;
+        lut = pl_lut_parse_cube(log, luts[i], strlen(luts[i]));
+        REQUIRE(lut);
+
+        pl_shader_reset(sh, pl_shader_params( .gpu = gpu ));
+        pl_shader_custom_lut(sh, lut, &obj);
+        const struct pl_shader_res *res = pl_shader_finalize(sh);
+        REQUIRE(res);
+        printf("Generated LUT shader:\n%s\n", res->glsl);
+        pl_lut_free(&lut);
+    }
+
+    pl_shader_obj_destroy(&obj);
+    pl_shader_free(&sh);
+    pl_gpu_dummy_destroy(&gpu);
+    pl_log_destroy(&log);
+}