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-rw-r--r--src/tests/dummy.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/src/tests/dummy.c b/src/tests/dummy.c
new file mode 100644
index 0000000..0e87a2c
--- /dev/null
+++ b/src/tests/dummy.c
@@ -0,0 +1,70 @@
+#include "gpu_tests.h"
+
+#include <libplacebo/dummy.h>
+
+int main()
+{
+ pl_log log = pl_test_logger();
+ pl_gpu gpu = pl_gpu_dummy_create(log, NULL);
+ pl_buffer_tests(gpu);
+ pl_texture_tests(gpu);
+
+ // Attempt creating a shader and accessing the resulting LUT
+ pl_tex dummy = pl_tex_dummy_create(gpu, pl_tex_dummy_params(
+ .w = 100,
+ .h = 100,
+ .format = pl_find_named_fmt(gpu, "rgba8"),
+ ));
+
+ struct pl_sample_src src = {
+ .tex = dummy,
+ .new_w = 1000,
+ .new_h = 1000,
+ };
+
+ pl_shader_obj lut = NULL;
+ struct pl_sample_filter_params filter_params = {
+ .filter = pl_filter_ewa_lanczos,
+ .lut = &lut,
+ };
+
+ pl_shader sh = pl_shader_alloc(log, pl_shader_params( .gpu = gpu ));
+ REQUIRE(pl_shader_sample_polar(sh, &src, &filter_params));
+ const struct pl_shader_res *res = pl_shader_finalize(sh);
+ REQUIRE(res);
+
+ for (int n = 0; n < res->num_descriptors; n++) {
+ const struct pl_shader_desc *sd = &res->descriptors[n];
+ if (sd->desc.type != PL_DESC_SAMPLED_TEX)
+ continue;
+
+ pl_tex tex = sd->binding.object;
+ const float *data = (float *) pl_tex_dummy_data(tex);
+ if (!data)
+ continue; // means this was the `dummy` texture
+
+#ifdef PRINT_LUTS
+ for (int i = 0; i < tex->params.w; i++)
+ printf("lut[%d] = %f\n", i, data[i]);
+#endif
+ }
+
+ // Try out generation of the sampler2D interface
+ src.tex = NULL;
+ src.tex_w = 100;
+ src.tex_h = 100;
+ src.format = PL_FMT_UNORM;
+ src.sampler = PL_SAMPLER_NORMAL;
+ src.mode = PL_TEX_SAMPLE_LINEAR;
+
+ pl_shader_reset(sh, pl_shader_params( .gpu = gpu ));
+ REQUIRE(pl_shader_sample_polar(sh, &src, &filter_params));
+ REQUIRE((res = pl_shader_finalize(sh)));
+ REQUIRE_CMP(res->input, ==, PL_SHADER_SIG_SAMPLER, "u");
+
+ pl_shader_free(&sh);
+ pl_shader_obj_destroy(&lut);
+ pl_tex_destroy(gpu, &dummy);
+ pl_gpu_dummy_destroy(&gpu);
+ pl_log_destroy(&log);
+}