[igt-dev] [PATCH i-g-t v6 05/14] tests/api_intel_bb: add render tests

["Zbigniew Kempczyński" <zbigniew.kempczynski@intel.com>]

Check render / render-ccs tests works fine on all supported gens.

Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Cc: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
---
 tests/i915/api_intel_bb.c | 168 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 168 insertions(+)

diff --git a/tests/i915/api_intel_bb.c b/tests/i915/api_intel_bb.c
index 6967fc5d..df0eb933 100644
--- a/tests/i915/api_intel_bb.c
+++ b/tests/i915/api_intel_bb.c
@@ -632,6 +632,162 @@ static void full_batch(struct buf_ops *bops)
 	intel_bb_destroy(ibb);
 }
 
+static int render(struct buf_ops *bops, uint32_t tiling)
+{
+	struct intel_bb *ibb;
+	const int width = 1024;
+	const int height = 1024;
+	struct intel_buf src, dst, final;
+	int i915 = buf_ops_get_fd(bops);
+	uint32_t fails = 0;
+	char name[128];
+	uint32_t devid = intel_get_drm_devid(i915);
+	igt_render_copyfunc_t render_copy = NULL;
+
+	ibb = intel_bb_create(i915, PAGE_SIZE);
+	if (debug_bb)
+		intel_bb_set_debug(ibb, true);
+
+	scratch_buf_init(bops, &src, width, height, I915_TILING_NONE,
+			 I915_COMPRESSION_NONE);
+	scratch_buf_init(bops, &dst, width, height, tiling,
+			 I915_COMPRESSION_NONE);
+	scratch_buf_init(bops, &final, width, height, I915_TILING_NONE,
+			 I915_COMPRESSION_NONE);
+
+	scratch_buf_draw_pattern(bops, &src,
+				 0, 0, width, height,
+				 0, 0, width, height, 0);
+
+	render_copy = igt_get_render_copyfunc(devid);
+	igt_assert(render_copy);
+
+	render_copy(ibb, 0,
+		    &src,
+		    0, 0, width, height,
+		    &dst,
+		    0, 0);
+
+	render_copy(ibb, 0,
+		    &dst,
+		    0, 0, width, height,
+		    &final,
+		    0, 0);
+
+	intel_bb_sync(ibb);
+	intel_bb_destroy(ibb);
+
+	if (write_png) {
+		snprintf(name, sizeof(name) - 1,
+			 "render_dst_tiling_%d.png", tiling);
+		intel_buf_write_to_png(&src, "render_src_tiling_none.png");
+		intel_buf_write_to_png(&dst, name);
+		intel_buf_write_to_png(&final, "render_final_tiling_none.png");
+	}
+
+	/* We'll fail on src <-> final compare so just warn */
+	if (tiling == I915_TILING_NONE) {
+		if (compare_bufs(&src, &dst, false) > 0)
+			igt_warn("%s: none->none failed!\n", __func__);
+	} else {
+		if (compare_bufs(&src, &dst, false) == 0)
+			igt_warn("%s: none->tiled failed!\n", __func__);
+	}
+
+	fails = compare_bufs(&src, &final, true);
+
+	intel_buf_close(bops, &src);
+	intel_buf_close(bops, &dst);
+	intel_buf_close(bops, &final);
+
+	igt_assert_f(fails == 0, "%s: (tiling: %d) fails: %d\n",
+		     __func__, tiling, fails);
+
+	return fails;
+}
+
+static uint32_t count_compressed(int gen, struct intel_buf *buf)
+{
+	int ccs_size = intel_buf_ccs_width(gen, buf) * intel_buf_ccs_height(gen, buf);
+	uint8_t *ptr = intel_buf_device_map(buf, false);
+	uint32_t compressed = 0;
+	int i;
+
+	for (i = 0; i < ccs_size; i++)
+		if (ptr[buf->ccs[0].offset + i])
+			compressed++;
+
+	intel_buf_unmap(buf);
+
+	return compressed;
+}
+
+#define IMGSIZE (512 * 512 * 4)
+#define CCSIMGSIZE (IMGSIZE + 4096)
+static void render_ccs(struct buf_ops *bops)
+{
+	struct intel_bb *ibb;
+	const int width = 1024;
+	const int height = 1024;
+	struct intel_buf src, dst, final;
+	int i915 = buf_ops_get_fd(bops);
+	uint32_t fails = 0;
+	uint32_t compressed = 0;
+	uint32_t devid = intel_get_drm_devid(i915);
+	igt_render_copyfunc_t render_copy = NULL;
+
+	ibb = intel_bb_create(i915, PAGE_SIZE);
+	if (debug_bb)
+		intel_bb_set_debug(ibb, true);
+
+	scratch_buf_init(bops, &src, width, height, I915_TILING_NONE,
+			 I915_COMPRESSION_NONE);
+	scratch_buf_init(bops, &dst, width, height, I915_TILING_Y,
+			 I915_COMPRESSION_RENDER);
+	scratch_buf_init(bops, &final, width, height, I915_TILING_NONE,
+			 I915_COMPRESSION_NONE);
+
+	render_copy = igt_get_render_copyfunc(devid);
+	igt_assert(render_copy);
+
+	scratch_buf_draw_pattern(bops, &src,
+				 0, 0, width, height,
+				 0, 0, width, height, 0);
+
+	render_copy(ibb, 0,
+		    &src,
+		    0, 0, width, height,
+		    &dst,
+		    0, 0);
+
+	render_copy(ibb, 0,
+		    &dst,
+		    0, 0, width, height,
+		    &final,
+		    0, 0);
+
+	intel_bb_sync(ibb);
+	intel_bb_destroy(ibb);
+
+	fails = compare_bufs(&src, &final, true);
+	compressed = count_compressed(ibb->gen, &dst);
+
+	igt_debug("fails: %u, compressed: %u\n", fails, compressed);
+
+	if (write_png) {
+		intel_buf_write_to_png(&src, "render-ccs-src.png");
+		intel_buf_write_to_png(&dst, "render-ccs-dst.png");
+		intel_buf_write_aux_to_png(&dst, "render-ccs-dst-aux.png");
+		intel_buf_write_to_png(&final, "render-ccs-final.png");
+	}
+
+	intel_buf_close(bops, &src);
+	intel_buf_close(bops, &dst);
+	intel_buf_close(bops, &final);
+
+	igt_assert_f(fails == 0, "render-ccs fails: %d\n", fails);
+}
+
 static int opt_handler(int opt, int opt_index, void *data)
 {
 	switch (opt) {
@@ -702,6 +858,18 @@ igt_main_args("dpi", NULL, help_str, opt_handler, NULL)
 	igt_subtest("full-batch")
 		full_batch(bops);
 
+	igt_subtest("render-none")
+		render(bops, I915_TILING_NONE);
+
+	igt_subtest("render-x")
+		render(bops, I915_TILING_X);
+
+	igt_subtest("render-y")
+		render(bops, I915_TILING_Y);
+
+	igt_subtest("render-ccs")
+		render_ccs(bops);
+
 	igt_fixture {
 		buf_ops_destroy(bops);
 		close(i915);
-- 
2.26.0

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