tests: add a cmdbuf test that verifies a clear on a buffer.

Signed-off-by: Dave Airlie <airlied@redhat.com>

tests/Makefile.am

@@ -4,7 +4,7 @@ AM_CPPFLAGS = -I$(top_srcdir)/src -I$(top_srcdir)/src/gallium/include $(CHECK_CF
 
 TEST_LIBS = libvrtest.la $(top_builddir)/src/libvirglrenderer.la $(CHECK_LIBS)
 
-run_tests = test_virgl_init test_virgl_transfer test_virgl_resource
+run_tests = test_virgl_init test_virgl_transfer test_virgl_resource test_virgl_cmd
 
 noinst_LTLIBRARIES = libvrtest.la
 libvrtest_la_SOURCES = testvirgl.c testvirgl_encode.c
@@ -23,6 +23,10 @@ test_virgl_transfer_SOURCES = test_virgl_transfer.c
 test_virgl_transfer_LDADD = $(TEST_LIBS)
 test_virgl_transfer_LDFLAGS = -no-install
 
+test_virgl_cmd_SOURCES = test_virgl_cmd.c
+test_virgl_cmd_LDADD = $(TEST_LIBS)
+test_virgl_cmd_LDFLAGS = -no-install
+
 if HAVE_VALGRIND
 VALGRIND_FLAGS=--leak-check=full \
 	       --quiet \

tests/test_virgl_cmd.c

@@ -0,0 +1,148 @@
+/**************************************************************************
+ *
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+#include <check.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/uio.h>
+#include <virglrenderer.h>
+#include "virgl_hw.h"
+#include "pipe/p_format.h"
+#include "testvirgl_encode.h"
+
+/* create a resource - clear it to a color, do a transfer */
+START_TEST(virgl_test_clear)
+{
+    struct virgl_context ctx;
+    struct virgl_resource res;
+    struct virgl_renderer_resource_create_args args;
+    struct virgl_surface surf;
+    struct pipe_framebuffer_state fb_state;
+    union pipe_color_union color;
+    struct virgl_box box;
+    struct iovec iovs[1];
+    int niovs = 1;
+    int ret;
+    int i;
+    
+    ret = testvirgl_init_ctx_cmdbuf(&ctx);
+    ck_assert_int_eq(ret, 0);    
+
+    /* clear buffer to green */
+    color.f[0] = 0.0;
+    color.f[1] = 1.0;
+    color.f[2] = 0.0;
+    color.f[3] = 1.0;
+
+    /* init and create simple 2D resource */
+    testvirgl_init_simple_2d_resource(&args, 1);
+    ret = virgl_renderer_resource_create(&args, NULL, 0);
+    ck_assert_int_eq(ret, 0);
+    
+    res.handle = 1;
+    res.base.target = PIPE_TEXTURE_2D;
+
+    /* create and attach some backing store for resource */
+    iovs[0].iov_base = calloc(1, 50*50*4);
+    iovs[0].iov_len = 50*50*4;
+
+    virgl_renderer_resource_attach_iov(res.handle, iovs, niovs);
+    ck_assert_int_eq(ret, 0);
+
+    /* attach resource to context */
+    virgl_renderer_ctx_attach_resource(ctx.ctx_id, res.handle);
+
+    /* create a surface for the resource */
+    memset(&surf, 0, sizeof(surf));
+    surf.base.format = PIPE_FORMAT_B8G8R8X8_UNORM;
+    surf.handle = 1;
+    surf.base.texture = &res.base;
+
+    virgl_encoder_create_surface(&ctx, surf.handle, &res, &surf.base);
+
+    /* set the framebuffer state */
+    fb_state.nr_cbufs = 1;
+    fb_state.zsbuf = NULL;
+    fb_state.cbufs[0] = &surf.base;
+    virgl_encoder_set_framebuffer_state(&ctx, &fb_state);
+
+    /* clear the resource */
+    virgl_encode_clear(&ctx, PIPE_CLEAR_COLOR0, &color, 0.0, 0);
+
+    /* submit the cmd stream */
+    virgl_renderer_submit_cmd(ctx.cbuf->buf, 1, ctx.cbuf->cdw);
+
+    /* read back the cleared values in the resource */
+    box.x = 0;
+    box.y = 0;
+    box.z = 0;
+    box.w = 5;
+    box.h = 1;
+    box.d = 1;
+    ret = virgl_renderer_transfer_read_iov(res.handle, ctx.ctx_id, 0, 50, 0, &box, 0, NULL, 0);
+    ck_assert_int_eq(ret, 0);
+
+    /* check the returned values */
+    for (i = 0; i < 5; i++) {
+	uint32_t *ptr = iovs[0].iov_base;
+	ck_assert_int_eq(ptr[i], 0xff00ff00);
+    }
+
+    /* cleanup */
+    virgl_renderer_ctx_detach_resource(1, res.handle);
+    virgl_renderer_resource_detach_iov(res.handle, NULL, NULL);
+
+    free(iovs[0].iov_base);
+    testvirgl_fini_ctx_cmdbuf(&ctx);
+}
+END_TEST
+
+Suite *virgl_init_suite(void)
+{
+  Suite *s;
+  TCase *tc_core;
+
+  s = suite_create("virgl_clear");
+  tc_core = tcase_create("clear");
+
+  tcase_add_test(tc_core, virgl_test_clear);
+  suite_add_tcase(s, tc_core);
+  return s;
+
+}
+
+int main(void)
+{
+  Suite *s;
+  SRunner *sr;
+  int number_failed;
+
+  s = virgl_init_suite();
+  sr = srunner_create(s);
+
+  srunner_run_all(sr, CK_NORMAL);
+  number_failed = srunner_ntests_failed(sr);
+  srunner_free(sr);
+
+  return number_failed == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}