the goal is to test the state mix of
glUseProgram/glBindProgramPipeline/glActiveProgram.
Ian R. quote:
"In this case, either the UseProgram state or the BindProgramPipeline state.
If UseProgram sets a non-zero program, that state is used. Otherwise the
BindProgramPipeline state is used.....In this case, I think AMD's
behavior is incorrect."
Note: Nvidia seems to be fine.
V4:
* split into a separate commit
* Merge the 2 vertex shaders with the help of the __VERSION__ macro
* Properly set shader version with asprintf
* Use standard bool
* Split test into subtest
* Fix expected of GL_PROGRAM_PIPELINE_BINDING (based on nvidia behavior)
Note: vertex shader doesn't work with FGLRX. It would require GLSL150 but that
mean
you can't use fixed pipeline anymore...
---
tests/all.tests | 1 +
.../mix_pipeline_useprogram.c | 389 ++++++++++++++++++++
2 files changed, 390 insertions(+)
create mode 100644
tests/spec/arb_separate_shader_objects/mix_pipeline_useprogram.c
diff --git a/tests/all.tests b/tests/all.tests
index e8dfcbe..7894ad9 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1105,6 +1105,7 @@ arb_separate_shader_objects = Group()
spec['ARB_separate_shader_objects'] = arb_separate_shader_objects
arb_separate_shader_objects['sso-GetProgramPipelineiv'] =
concurrent_test('arb_separate_shader_object-GetProgramPipelineiv')
arb_separate_shader_objects['sso-IsProgramPipeline'] =
concurrent_test('arb_separate_shader_object-IsProgramPipeline')
+arb_separate_shader_objects['sso-mix_pipeline_useprogram'] =
concurrent_test('arb_separate_shader_object-mix_pipeline_useprogram')
# Group ARB_sampler_objects
arb_sampler_objects = Group()
diff --git a/tests/spec/arb_separate_shader_objects/mix_pipeline_useprogram.c
b/tests/spec/arb_separate_shader_objects/mix_pipeline_useprogram.c
new file mode 100644
index 0000000..bd682bb
--- /dev/null
+++ b/tests/spec/arb_separate_shader_objects/mix_pipeline_useprogram.c
@@ -0,0 +1,389 @@
+/*
+ * Copyright © 2013 Gregory Hainaut <[email protected]>
+ *
+ * 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.
+ */
+
+/*
+ * If no current program object has been established by UseProgram, the pro-
+ * gram objects used for each shader stage and for uniform updates are taken
from
+ * the bound program pipeline object, if any. If there is a current program
object
+ * established by UseProgram, the bound program pipeline object has no effect
on
+ * rendering or uniform updates. When a bound program pipeline object is used
for
+ * rendering, individual shader executables are taken from its program objects
as de-
+ * scribed in the discussion of UseProgram in section 7.3).
+ */
+
+/*
+ * The executable code for an individual shader stage is taken from the
+ * current program for that stage. If there is a current program object
+ * for any shader stage or for uniform updates established by UseProgram,
+ * UseShaderProgramEXT, or ActiveProgramEXT, the current program for that
+ * stage (if any) is considered current. Otherwise, if there is a bound
+ * program pipeline object ...
+ *
+ * Note that with these rules, it's not possible to mix program objects bound
+ * to the context with program objects bound to a program pipeline object; if
+ * any program is bound to the context, the current pipeline object is
+ * ignored.
+ */
+
+/*
+ *4. How do the glUniform* commands determine what program object
+ * to query?
+ *
+ * RESOLVED: In a program pipeline object, this extension provides
+ * separate program binding points for each stage, as well as an "active"
+ * program specified by glActiveShaderProgram. When glUniform is called
+ * when a program pipeline object is active, the active program specifies
+ * the program used by glUniform* commands. This active program is
+ * simply a selector and doesn't actually control any rendering
+ * operation.
+ *
+ * The active program can be queried with glGetProgramPipelineiv with a
+ * <pname> of GL_ACTIVE_PROGRAM.
+ *
+ * When a non-zero program is passed to UseProgram, any subsequent
+ * uniform updates will affect that program, ignoring the active program
+ * in any bound pipeline object. For example:
+ *
+ * glUseProgram(0);
+ * glBindProgramPipeline(1);
+ * glActiveProgram(1, 2);
+ * glUniform1f(0, 3.0); // affects program 2
+ * glUseProgram(3);
+ * glUniform1f(0, 3.0); // affects program 3
+ * glUseProgram(0);
+ * glUniform1f(0, 3.0); // affects program 2
+ *
+ *
+ * As an alternative to setting the GL_ACTIVE_PROGRAM selector
+ * with glActiveShaderProgram, applications are instead encouraged
+ * to use the glProgramUniform* commands introduced by the
+ * EXT_direct_state_access extension which do not depend on a
+ * selector but specify the program object with which to update
+ * the specified uniform location explicitly.
+ */
+
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_compat_version = 10;
+
+ config.window_width = 32;
+ config.window_height = 32;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static GLuint prog;
+static GLuint pipe;
+static bool pass = true;
+static bool subtest = true;
+
+static bool
+check(GLenum pname, GLint expected) {
+ GLint value = 0;
+ glGetIntegerv(pname, &value);
+ pass &= piglit_check_gl_error(GL_NO_ERROR);
+ if (value != expected) {
+ fprintf(stderr, "Failed to get %s expected %d got %d\n",
piglit_get_gl_enum_name(pname), expected, value);
+ return false;
+ } else {
+ return true;
+ }
+}
+
+static void
+bind_program(bool enable) {
+ if (enable) {
+ glUseProgram(prog);
+ printf("Enable monolithic program\n");
+ subtest &= check(GL_CURRENT_PROGRAM, prog);
+ } else {
+ glUseProgram(0);
+ printf("Disable monolithic program\n");
+ subtest &= check(GL_CURRENT_PROGRAM, 0);
+ }
+}
+
+static void
+bind_pipeline(bool enable) {
+ if (enable) {
+ glBindProgramPipeline(pipe);
+ printf("Bind pipeline\n");
+ } else {
+ glBindProgramPipeline(0);
+ printf("Unbind pipeline\n");
+ }
+}
+
+static bool
+draw(float expected[4]) {
+ piglit_draw_rect(-1, -1, 2, 2);
+ return piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
expected);
+}
+
+static bool
+set_and_check_uniform(GLint program, float expected) {
+ float value;
+ glUniform1f(0, expected);
+ glGetUniformfv(program, 0, &value);
+ if (value != expected) {
+ fprintf(stderr, "Failed to get uniform value of %d, expected
%f, got %f\n", program, expected, value);
+ return false;
+ }
+ return true;
+}
+
+static void
+report_subtest(char* msg)
+{
+ if (subtest)
+ piglit_report_subtest_result(PIGLIT_PASS, msg);
+ else
+ piglit_report_subtest_result(PIGLIT_FAIL, msg);
+
+ pass &= subtest;
+ subtest = true;
+}
+
+enum piglit_result
+piglit_display(void)
+{
+ GLint active_shader_pipe;
+ GLint uniform_loc_pipe;
+ GLint uniform_loc_prog;
+ float red[4] = {1.0, 0.0, 0.0, 1.0};
+ float green[4] = {0.0, 1.0, 0.0, 1.0};
+ float blue[4] = {0.0, 0.0, 1.0, 1.0};
+ float gb[4] = {0.0, 1.0, 1.0, 1.0};
+
+ glGetProgramPipelineiv(pipe, GL_ACTIVE_PROGRAM, &active_shader_pipe);
+ uniform_loc_pipe = glGetUniformLocation(active_shader_pipe, "blue");
+ uniform_loc_prog = glGetUniformLocation(prog, "blue");
+ /* otherwise it is difficult which program is really updated */
+ assert(uniform_loc_prog == 0);
+ assert(uniform_loc_pipe == 0);
+
+ /* wrong setup: stop here */
+ if (!pass) return PIGLIT_FAIL;
+
+ /* Set up fixed function to draw blue if we lose our shader. */
+ glColor4f(0.0, 0.0, 1.0, 1.0);
+
+ /* TEST 1: BindPipeline after UseProgram */
+ printf("TEST 1\n");
+ bind_program(true);
+ subtest &= set_and_check_uniform(prog, 1.0);
+ bind_pipeline(true);
+ /* It must ignore the pipeline */
+ subtest &= set_and_check_uniform(prog, 0.0);
+ /* But the pipeline is attached to the binding point */
+ subtest &= check(GL_PROGRAM_PIPELINE_BINDING, 0);
+
+ /* UseProgram rendering */
+ subtest &= draw(red);
+
+ report_subtest("TEST_1");
+
+ /* TEST 2: BindPipeline without UseProgram */
+ printf("TEST 2\n");
+ bind_program(false);
+ bind_pipeline(true);
+ subtest &= set_and_check_uniform(active_shader_pipe, 1.0);
+ subtest &= check(GL_PROGRAM_PIPELINE_BINDING, pipe);
+
+ /* Pipeline rendering */
+ subtest &= draw(green);
+
+ report_subtest("TEST_2");
+
+ /* TEST 3: UseProgram after BindPipeline */
+ printf("TEST 3\n");
+ bind_program(true);
+ subtest &= check(GL_PROGRAM_PIPELINE_BINDING, 0);
+
+ report_subtest("TEST_3");
+
+ /* UseProgram rendering */
+ subtest &= draw(red);
+
+ /* TEST 4: UseProgram(0) after BindPipeline */
+ printf("TEST 4\n");
+ bind_program(false);
+ bind_pipeline(true);
+ subtest &= check(GL_PROGRAM_PIPELINE_BINDING, pipe);
+
+ /* Sanity check */
+ /* Pipeline rendering */
+ subtest &= draw(green);
+
+ bind_program(false);
+
+ /* Pipeline rendering */
+ subtest &= draw(green);
+
+ bind_pipeline(true);
+ subtest &= check(GL_PROGRAM_PIPELINE_BINDING, pipe);
+ subtest &= draw(green);
+
+ report_subtest("TEST_4");
+
+ /* TEST 5: like previous test but use a real program before
UseProgram(0) */
+ printf("TEST 5\n");
+ bind_program(false);
+ bind_pipeline(true);
+
+ /* Sanity check */
+ /* Pipeline rendering */
+ subtest &= draw(green);
+
+ /* Set wrong uniform value */
+ subtest &= set_and_check_uniform(active_shader_pipe, 0.0);
+
+ bind_program(true);
+ bind_program(false);
+
+ /* Pipeline rendering: with bad uniform */
+ subtest &= draw(gb);
+
+ /* pipeline program must be still active */
+ subtest &= set_and_check_uniform(active_shader_pipe, 1.0);
+
+ bind_pipeline(true);
+ /* Pipeline rendering */
+ subtest &= draw(green);
+
+ report_subtest("TEST_5");
+
+ /* TEST 6: Sanity check */
+ printf("TEST 6\n");
+ bind_program(false);
+ bind_pipeline(false);
+ /* Fixed function rendering */
+ subtest &= draw(blue);
+
+ report_subtest("TEST_6");
+
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ GLint bad_vs_prog;
+ GLint vs_prog;
+ GLint fs_prog;
+ GLint vs, vs_s, fs_g, fs_r;
+ const char *vs_source =
+ "#version 110\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = gl_Vertex;\n"
+ "}\n";
+ const char *vs_source_sep =
+ "#version 110\n"
+ "#extension GL_ARB_separate_shader_objects : enable\n"
+ "#if __VERSION__ > 140\n"
+ "out gl_PerVertex {\n"
+ " vec4 gl_Position;\n"
+ "};\n"
+ "#endif\n"
+ "\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = gl_Vertex;\n"
+ "}\n";
+ const char *fs_source_r =
+ "#version 110\n"
+ "uniform float blue;\n"
+ "void main()\n"
+ "{\n"
+ " gl_FragColor = vec4(1.0, 0.0, blue, 1.0);\n"
+ "}\n";
+ const char *fs_source_g =
+ "#version 110\n"
+ "#extension GL_ARB_separate_shader_objects : enable\n"
+ "uniform float blue;\n"
+ "void main()\n"
+ "{\n"
+ " gl_FragColor = vec4(0.0, 1.0, 1.0 - blue, 1.0);\n"
+ "}\n";
+
+ pass = true;
+
+ piglit_require_gl_version(20);
+ piglit_require_extension("GL_ARB_separate_shader_objects");
+
+ /* Standard program (ie not separate) */
+ vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
+ fs_r = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source_r);
+ prog = piglit_link_simple_program(vs, fs_r);
+ pass &= piglit_link_check_status(prog);
+
+ pass &= piglit_check_gl_error(GL_NO_ERROR);
+
+ /* Now create program for the pipeline program */
+ vs_s = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source_sep);
+ fs_g = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source_g);
+
+ bad_vs_prog = glCreateProgram();
+ glProgramParameteri(bad_vs_prog, GL_PROGRAM_SEPARABLE, GL_FALSE);
+ glAttachShader(bad_vs_prog, vs_s);
+ glLinkProgram(bad_vs_prog);
+ pass &= piglit_link_check_status(bad_vs_prog);
+
+ vs_prog = glCreateProgram();
+ glProgramParameteri(vs_prog, GL_PROGRAM_SEPARABLE, GL_TRUE);
+ glAttachShader(vs_prog, vs_s);
+ glLinkProgram(vs_prog);
+ pass &= piglit_link_check_status(vs_prog);
+
+ fs_prog = glCreateProgram();
+ glProgramParameteri(fs_prog, GL_PROGRAM_SEPARABLE, GL_TRUE);
+ glAttachShader(fs_prog, fs_g);
+ glLinkProgram(fs_prog);
+ pass &= piglit_link_check_status(fs_prog);
+
+ pass &= piglit_check_gl_error(GL_NO_ERROR);
+
+ glGenProgramPipelines(1, &pipe);
+
+ pass &= piglit_check_gl_error(GL_NO_ERROR);
+
+ /* Program without GL_PROGRAM_SEPARABLE must failed */
+ glUseProgramStages(pipe, GL_VERTEX_SHADER_BIT, bad_vs_prog);
+ pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
+
+ glUseProgramStages(pipe, GL_VERTEX_SHADER_BIT, vs_prog);
+ glUseProgramStages(pipe, GL_FRAGMENT_SHADER_BIT, fs_prog);
+ glActiveShaderProgram(pipe, fs_prog);
+ pass &= piglit_program_pipeline_check_status(pipe);
+
+ pass &= check(GL_PROGRAM_PIPELINE_BINDING, 0);
+ pass &= check(GL_CURRENT_PROGRAM, 0);
+
+ pass &= piglit_check_gl_error(GL_NO_ERROR);
+}
--
1.7.10.4
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