From: Nicolai Hähnle <[email protected]>
This tests that indirect data is picked up correctly when it's produced by a
transform feedback operation.
---
tests/all.py | 1 +
tests/spec/arb_draw_indirect/CMakeLists.gl.txt | 1 +
tests/spec/arb_draw_indirect/transform-feedback.c | 162 ++++++++++++++++++++++
3 files changed, 164 insertions(+)
create mode 100644 tests/spec/arb_draw_indirect/transform-feedback.c
diff --git a/tests/all.py b/tests/all.py
index db3b914..d2804b3 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -1925,6 +1925,7 @@ with profile.group_manager(
g(['arb_draw_indirect-draw-elements-prim-restart-ugly'])
g(['arb_draw_indirect-draw-arrays-instances'])
g(['arb_draw_indirect-draw-arrays-shared-binding'])
+ g(['arb_draw_indirect-transform-feedback'])
g(['arb_draw_indirect-vertexid'],
'gl_VertexID used with glDrawArraysIndirect')
g(['arb_draw_indirect-vertexid', 'elements'],
diff --git a/tests/spec/arb_draw_indirect/CMakeLists.gl.txt
b/tests/spec/arb_draw_indirect/CMakeLists.gl.txt
index f53eac4..9779111 100644
--- a/tests/spec/arb_draw_indirect/CMakeLists.gl.txt
+++ b/tests/spec/arb_draw_indirect/CMakeLists.gl.txt
@@ -17,6 +17,7 @@ piglit_add_executable
(arb_draw_indirect-draw-elements-base-instance draw-elemen
piglit_add_executable (arb_draw_indirect-draw-elements-prim-restart
draw-elements-prim-restart.c)
piglit_add_executable (arb_draw_indirect-draw-elements-prim-restart-ugly
draw-elements-prim-restart-ugly.c)
piglit_add_executable (arb_draw_indirect-draw-arrays-instances
draw-arrays-instances.c)
+piglit_add_executable (arb_draw_indirect-transform-feedback
transform-feedback.c)
piglit_add_executable (arb_draw_indirect-vertexid vertexid.c)
piglit_add_executable (arb_draw_indirect-draw-arrays-shared-binding
draw-arrays-shared-binding.c)
diff --git a/tests/spec/arb_draw_indirect/transform-feedback.c
b/tests/spec/arb_draw_indirect/transform-feedback.c
new file mode 100644
index 0000000..af3ea8f
--- /dev/null
+++ b/tests/spec/arb_draw_indirect/transform-feedback.c
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2013 Intel Corporation
+ * Copyright (c) 2016 Advanced Micro Devices
+ *
+ * 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 (including the next
+ * paragraph) 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.
+ *
+ */
+
+/* Test indirect data generated by transform feedback to catch flushing bugs.
+ *
+ * Based on draw-arrays.c.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_core_version = 31;
+
+ config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGB;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+GLuint draw_vao;
+GLint tf_prog, draw_prog;
+GLint tf_in;
+
+float red[] = {1,0,0};
+float blue[] = {0,0,1};
+
+float vertices_data[] = {
+ -1, -1,
+ 1, -1,
+ -1, 1,
+};
+
+GLint indirect_data[] = {
+ 3, /* count */
+ 1, /* primcount */
+ 0, /* first vertex */
+ 0, /* mbz */
+};
+
+enum piglit_result
+piglit_display(void)
+{
+ bool pass = true;
+
+ glViewport(0, 0, 128, 128);
+
+ glClearColor(0,0,1,1);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ /* Set vertex array already for transform feedback - its contents are
+ * irrelevant. */
+ glBindVertexArray(draw_vao);
+
+ glUseProgram(tf_prog);
+ glUniform4iv(tf_in, 1, indirect_data);
+
+ glEnable(GL_RASTERIZER_DISCARD);
+ glBeginTransformFeedback(GL_POINTS);
+ glDrawArrays(GL_POINTS, 0, 1);
+ glEndTransformFeedback();
+ glDisable(GL_RASTERIZER_DISCARD);
+
+ glUseProgram(draw_prog);
+
+ glDrawArraysIndirect(GL_TRIANGLES, (GLvoid const *)0);
+
+ glUseProgram(0);
+
+ piglit_present_results();
+
+ pass = piglit_probe_pixel_rgb(32, 32, red) && pass;
+ pass = piglit_probe_pixel_rgb(96, 96, blue) && pass;
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ static const char* const tf_out = "tf_out";
+ GLint zeros[4] = { 0, 0, 0, 0 };
+ GLuint vertices_bo;
+ GLuint indirect_bo;
+
+ piglit_require_extension("GL_ARB_draw_indirect");
+
+ glGenVertexArrays(1, &draw_vao);
+ glBindVertexArray(draw_vao);
+
+ glGenBuffers(1, &vertices_bo);
+ glBindBuffer(GL_ARRAY_BUFFER, vertices_bo);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(vertices_data), vertices_data,
GL_STATIC_DRAW);
+ glEnableVertexAttribArray(0);
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, 0);
+
+ glGenBuffers(1, &indirect_bo);
+ glBindBuffer(GL_DRAW_INDIRECT_BUFFER, indirect_bo);
+ /* Fill with zeros so that the default contents are safe (don't lead
+ * to excessive GPU processing times that will be mistaken for hangs).
+ */
+ glBufferData(GL_DRAW_INDIRECT_BUFFER, sizeof(indirect_data), zeros,
GL_STATIC_DRAW);
+
+ draw_prog = piglit_build_simple_program(
+ "#version 130\n"
+ "#extension GL_ARB_explicit_attrib_location: require\n"
+ "\n"
+ "layout(location=0) in vec2 pos;\n"
+ "\n"
+ "void main() {\n"
+ " gl_Position = vec4(pos, 0, 1);\n"
+ "}\n",
+
+ "#version 130\n"
+ "\n"
+ "void main() {\n"
+ " gl_FragColor = vec4(1,0,0,1);\n"
+ "}\n");
+
+ glBindVertexArray(0);
+
+ tf_prog = piglit_build_simple_program_unlinked(
+ "#version 130\n"
+ "\n"
+ "out ivec4 tf_out;\n"
+ "uniform ivec4 tf_in;\n"
+ "\n"
+ "void main() {\n"
+ " tf_out = tf_in;\n"
+ " gl_Position = vec4(0);\n"
+ "}\n",
+ NULL);
+ glTransformFeedbackVaryings(tf_prog, 1, &tf_out,
GL_INTERLEAVED_ATTRIBS);
+ glLinkProgram(tf_prog);
+ if (!piglit_link_check_status(tf_prog))
+ piglit_report_result(PIGLIT_FAIL);
+ piglit_check_gl_error(GL_NO_ERROR);
+
+ tf_in = glGetUniformLocation(tf_prog, "tf_in");
+
+ glBindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 0, indirect_bo, 0,
sizeof(indirect_data));
+}
--
2.7.4
_______________________________________________
Piglit mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/piglit
