This tests a bug with Mesa named inteface instances.
Test results:
Nvidia GeForce 840M - NVIDIA 346.47: pass
Mesa 11.1-dev - fail
---
tests/spec/arb_gpu_shader5/execution/xfb-streams.c | 105 +++++++++++++++++----
1 file changed, 88 insertions(+), 17 deletions(-)
diff --git a/tests/spec/arb_gpu_shader5/execution/xfb-streams.c
b/tests/spec/arb_gpu_shader5/execution/xfb-streams.c
index eb14856..0957587 100644
--- a/tests/spec/arb_gpu_shader5/execution/xfb-streams.c
+++ b/tests/spec/arb_gpu_shader5/execution/xfb-streams.c
@@ -81,6 +81,46 @@ static const char gs_tmpl[] =
" EndStreamPrimitive(1);\n"
"}";
+static const char gs_tmpl_blocks[] =
+ "#version 150\n"
+ "#extension GL_ARB_gpu_shader5 : enable\n"
+ "layout(points, invocations = %d) in;\n"
+ "layout(points, max_vertices = 4) out;\n"
+ "out float stream0_0_out;\n"
+ "layout(stream = 1) out Block1 {\n"
+ " vec2 stream1_0_out;\n"
+ " vec3 stream1_1_out;\n"
+ "};\n"
+ "layout(stream = 2) out Block2 {\n"
+ " float stream2_0_out;\n"
+ " vec4 stream2_1_out;\n"
+ "} blockWithName;\n"
+ "layout(stream = 3) out vec3 stream3_0_out;\n"
+ "void main() {\n"
+ " gl_Position = gl_in[0].gl_Position;\n"
+
+ " stream0_0_out = 1.0 + gl_InvocationID;\n"
+ " EmitVertex();\n"
+ " EndPrimitive();\n"
+
+ " stream3_0_out = vec3(12.0 + gl_InvocationID, 13.0 +
gl_InvocationID,\n"
+ " 14.0 + gl_InvocationID);\n"
+ " EmitStreamVertex(3);\n"
+ " EndStreamPrimitive(3);\n"
+
+ " blockWithName.stream2_0_out = 7.0 + gl_InvocationID;\n"
+ " blockWithName.stream2_1_out = vec4(8.0 + gl_InvocationID, 9.0 +
gl_InvocationID,\n"
+ " 10.0 + gl_InvocationID, 11.0 +
gl_InvocationID);\n"
+ " EmitStreamVertex(2);\n"
+ " EndStreamPrimitive(2);\n"
+
+ " stream1_0_out = vec2(2.0 + gl_InvocationID, 3.0 +
gl_InvocationID);\n"
+ " stream1_1_out = vec3(4.0 + gl_InvocationID, 5.0 + gl_InvocationID,\n"
+ " 6.0 + gl_InvocationID);\n"
+ " EmitStreamVertex(1);\n"
+ " EndStreamPrimitive(1);\n"
+ "}";
+
const char *stream_names[] = { "first", "second", "third", "forth" };
int stream_float_counts[] = { 1, 5, 5, 3 };
@@ -93,29 +133,39 @@ static const char *varyings[] = {
"stream3_0_out"
};
-static void
-build_and_use_program(GLint gs_invocation_n)
+static const char *varyings_blocks[] = {
+ "stream0_0_out", "gl_NextBuffer",
+ "stream1_0_out", "stream1_1_out", "gl_NextBuffer",
+ "Block2.stream2_0_out", "Block2.stream2_1_out",
+ "gl_NextBuffer", "stream3_0_out"
+};
+
+static bool
+build_and_use_program(GLint gs_invocation_n, const char *gs_template,
+ const char **gs_varyings, int array_size)
{
GLuint prog;
char *gs_text;
- asprintf(&gs_text, gs_tmpl, gs_invocation_n);
+ asprintf(&gs_text, gs_template, gs_invocation_n);
prog = piglit_build_simple_program_multiple_shaders(
GL_VERTEX_SHADER, vs_pass_thru_text,
GL_GEOMETRY_SHADER, gs_text, 0);
free(gs_text);
- glTransformFeedbackVaryings(prog, ARRAY_SIZE(varyings), varyings,
+ glTransformFeedbackVaryings(prog, array_size, gs_varyings,
GL_INTERLEAVED_ATTRIBS);
glLinkProgram(prog);
if (!piglit_link_check_status(prog))
- piglit_report_result(PIGLIT_FAIL);
+ return false;
if (!piglit_check_gl_error(GL_NO_ERROR))
- piglit_report_result(PIGLIT_FAIL);
+ return false;
glUseProgram(prog);
+
+ return true;
}
static bool
@@ -136,13 +186,13 @@ probe_buffers(const GLuint *xfb, const GLuint *queries,
unsigned primitive_n)
if (query_result != primitive_n) {
printf("Expected %u primitives generated, got %u\n",
primitive_n, query_result);
- piglit_report_result(PIGLIT_FAIL);
+ return false;
}
glGetQueryObjectuiv(queries[STREAMS+i], GL_QUERY_RESULT,
&query_result);
if (query_result != primitive_n) {
printf("Expected %u TF primitives written, got %u\n",
primitive_n, query_result);
- piglit_report_result(PIGLIT_FAIL);
+ return false;
}
}
@@ -185,9 +235,9 @@ probe_buffers(const GLuint *xfb, const GLuint *queries,
unsigned primitive_n)
return pass;
}
-void
-piglit_init(int argc, char **argv)
-{
+static bool
+run_subtest(const char *gs_template, const char **gs_varyings,
+ int array_size) {
bool pass;
unsigned primitive_n;
GLint gs_invocation_n;
@@ -201,17 +251,20 @@ piglit_init(int argc, char **argv)
glGetIntegerv(GL_MAX_GEOMETRY_SHADER_INVOCATIONS, &gs_invocation_n);
if (!piglit_check_gl_error(GL_NO_ERROR))
- piglit_report_result(PIGLIT_FAIL);
+ return false;
if (gs_invocation_n <= 0) {
printf("Maximum amount of geometry shader invocations "
"needs to be positive (%u).\n", gs_invocation_n);
- piglit_report_result(PIGLIT_FAIL);
+ return false;
}
primitive_n = gs_invocation_n;
- build_and_use_program(gs_invocation_n);
+ if (!build_and_use_program(gs_invocation_n, gs_template, gs_varyings,
+ array_size)) {
+ return false;
+ }
/* Set up the transform feedback buffers. */
glGenBuffers(ARRAY_SIZE(xfb), xfb);
@@ -227,7 +280,7 @@ piglit_init(int argc, char **argv)
glEnable(GL_RASTERIZER_DISCARD);
if (!piglit_check_gl_error(GL_NO_ERROR))
- piglit_report_result(PIGLIT_FAIL);
+ return false;
glGenQueries(ARRAY_SIZE(queries), queries);
for (i = 0; i < STREAMS; i++) {
@@ -251,14 +304,32 @@ piglit_init(int argc, char **argv)
glDeleteVertexArrays(1, &vao);
if (!piglit_check_gl_error(GL_NO_ERROR))
- piglit_report_result(PIGLIT_FAIL);
+ return false;
pass = probe_buffers(xfb, queries, primitive_n);
glDeleteBuffers(ARRAY_SIZE(xfb), xfb);
glDeleteQueries(ARRAY_SIZE(queries), queries);
- piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+ return pass;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ bool test1;
+ bool test2;
+
+ test1 = run_subtest(gs_tmpl, varyings, ARRAY_SIZE(varyings));
+ piglit_report_subtest_result(test1 ? PIGLIT_PASS : PIGLIT_FAIL,
+ "arb_gpu_shader5-xfb-streams");
+
+ test2 = run_subtest(gs_tmpl_blocks, varyings_blocks,
+ ARRAY_SIZE(varyings_blocks));
+ piglit_report_subtest_result(test2 ? PIGLIT_PASS : PIGLIT_FAIL,
+ "arb_gpu_shader5-xfb-streams-blocks");
+
+ piglit_report_result(test1 && test2 ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result
--
2.4.3
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