mutter/tests/conform/test-pipeline-uniforms.c
Robert Bragg bbcbece6c9 tests: Improve thoroughness and reporting of make test
This patch reworks our conformance testing framework because it seems
that glib's gtesting framework isn't really well suited to our use case.
For example we weren't able to test windows builds given the way we
were using it and also for each test we'd like to repeat the test
with several different environments so we can test important driver and
feature combinations.

This patch instead switches away to a simplified but custom approach for
running our unit tests. We hope that having a more bespoke setup will
enable us to easily extend it to focus on the details important to us.

Notable changes with this new approach are:

We can now run 'make test' for our mingw windows builds.

We've got rid of all the test-*report* make rules and we're just left
with 'make test'

'make test' now runs each test several times with different driver and
feature combinations checking the result for each run. 'make test' will
then output a concise table of all of the results.

The combinations tested are:
- OpenGL Fixed Function
- OpenGL ARBfp
- OpenGL GLSL
- OpenGL No NPOT texture support
- OpenGLES 2.0
- OpenGLES 2.0 No NPOT texture support

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2012-02-24 14:42:31 +00:00

433 lines
12 KiB
C

#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
#define LONG_ARRAY_SIZE 128
typedef struct _TestState
{
CoglContext *ctx;
CoglPipeline *pipeline_red;
CoglPipeline *pipeline_green;
CoglPipeline *pipeline_blue;
CoglPipeline *matrix_pipeline;
CoglPipeline *vector_pipeline;
CoglPipeline *int_pipeline;
CoglPipeline *long_pipeline;
int long_uniform_locations[LONG_ARRAY_SIZE];
} TestState;
static const char
color_source[] =
"uniform float red, green, blue;\n"
"\n"
"void\n"
"main ()\n"
"{\n"
" cogl_color_out = vec4 (red, green, blue, 1.0);\n"
"}\n";
static const char
matrix_source[] =
"uniform mat4 matrix_array[4];\n"
"\n"
"void\n"
"main ()\n"
"{\n"
" vec4 color = vec4 (0.0, 0.0, 0.0, 1.0);\n"
" int i;\n"
"\n"
" for (i = 0; i < 4; i++)\n"
" color = matrix_array[i] * color;\n"
"\n"
" cogl_color_out = color;\n"
"}\n";
static const char
vector_source[] =
"uniform vec4 vector_array[2];\n"
"uniform vec3 short_vector;\n"
"\n"
"void\n"
"main ()\n"
"{\n"
" cogl_color_out = (vector_array[0] +\n"
" vector_array[1] +\n"
" vec4 (short_vector, 1.0));\n"
"}\n";
static const char
int_source[] =
"uniform ivec4 vector_array[2];\n"
"uniform int single_value;\n"
"\n"
"void\n"
"main ()\n"
"{\n"
" cogl_color_out = (vec4 (vector_array[0]) +\n"
" vec4 (vector_array[1]) +\n"
" vec4 (float (single_value), 0.0, 0.0, 255.0)) / 255.0;\n"
"}\n";
static const char
long_source[] =
"uniform int long_array[" G_STRINGIFY (LONG_ARRAY_SIZE) "];\n"
"const int last_index = " G_STRINGIFY (LONG_ARRAY_SIZE) " - 1;\n"
"\n"
"void\n"
"main ()\n"
"{\n"
" cogl_color_out = vec4 (float (long_array[last_index]), 0.0, 0.0, 1.0);\n"
"}\n";
static CoglPipeline *
create_pipeline_for_shader (TestState *state, const char *shader_source)
{
CoglPipeline *pipeline;
CoglHandle shader;
CoglHandle program;
pipeline = cogl_pipeline_new (state->ctx);
shader = cogl_create_shader (COGL_SHADER_TYPE_FRAGMENT);
cogl_shader_source (shader, shader_source);
program = cogl_create_program ();
cogl_program_attach_shader (program, shader);
cogl_pipeline_set_user_program (pipeline, program);
cogl_handle_unref (shader);
cogl_handle_unref (program);
return pipeline;
}
static void
init_state (TestState *state)
{
int uniform_location;
state->pipeline_red = create_pipeline_for_shader (state, color_source);
uniform_location =
cogl_pipeline_get_uniform_location (state->pipeline_red, "red");
cogl_pipeline_set_uniform_1f (state->pipeline_red, uniform_location, 1.0f);
uniform_location =
cogl_pipeline_get_uniform_location (state->pipeline_red, "green");
cogl_pipeline_set_uniform_1f (state->pipeline_red, uniform_location, 0.0f);
uniform_location =
cogl_pipeline_get_uniform_location (state->pipeline_red, "blue");
cogl_pipeline_set_uniform_1f (state->pipeline_red, uniform_location, 0.0f);
state->pipeline_green = cogl_pipeline_copy (state->pipeline_red);
uniform_location =
cogl_pipeline_get_uniform_location (state->pipeline_green, "green");
cogl_pipeline_set_uniform_1f (state->pipeline_green, uniform_location, 1.0f);
state->pipeline_blue = cogl_pipeline_copy (state->pipeline_red);
uniform_location =
cogl_pipeline_get_uniform_location (state->pipeline_blue, "blue");
cogl_pipeline_set_uniform_1f (state->pipeline_blue, uniform_location, 1.0f);
state->matrix_pipeline = create_pipeline_for_shader (state, matrix_source);
state->vector_pipeline = create_pipeline_for_shader (state, vector_source);
state->int_pipeline = create_pipeline_for_shader (state, int_source);
state->long_pipeline = NULL;
}
static void
init_long_pipeline_state (TestState *state)
{
int i;
state->long_pipeline = create_pipeline_for_shader (state, long_source);
/* This tries to lookup a large number of uniform names to make sure
that the bitmask of overriden uniforms flows over the size of a
single long so that it has to resort to allocating it */
for (i = 0; i < LONG_ARRAY_SIZE; i++)
{
char *uniform_name = g_strdup_printf ("long_array[%i]", i);
state->long_uniform_locations[i] =
cogl_pipeline_get_uniform_location (state->long_pipeline,
uniform_name);
g_free (uniform_name);
}
}
static void
destroy_state (TestState *state)
{
cogl_object_unref (state->pipeline_red);
cogl_object_unref (state->pipeline_green);
cogl_object_unref (state->pipeline_blue);
cogl_object_unref (state->matrix_pipeline);
cogl_object_unref (state->vector_pipeline);
cogl_object_unref (state->int_pipeline);
if (state->long_pipeline)
cogl_object_unref (state->long_pipeline);
}
static void
paint_pipeline (CoglPipeline *pipeline, int pos)
{
cogl_push_source (pipeline);
cogl_rectangle (pos * 10, 0, pos * 10 + 10, 10);
cogl_pop_source ();
}
static void
paint_color_pipelines (TestState *state)
{
CoglPipeline *temp_pipeline;
int uniform_location;
int i;
/* Paint with the first pipeline that sets the uniforms to bright
red */
paint_pipeline (state->pipeline_red, 0);
/* Paint with the two other pipelines. These inherit from the red
pipeline and only override one other component. The values for
the two other components should be inherited from the red
pipeline. */
paint_pipeline (state->pipeline_green, 1);
paint_pipeline (state->pipeline_blue, 2);
/* Try modifying a single pipeline for multiple rectangles */
temp_pipeline = cogl_pipeline_copy (state->pipeline_green);
uniform_location = cogl_pipeline_get_uniform_location (temp_pipeline,
"green");
for (i = 0; i <= 8; i++)
{
cogl_pipeline_set_uniform_1f (temp_pipeline, uniform_location,
i / 8.0f);
paint_pipeline (temp_pipeline, i + 3);
}
cogl_object_unref (temp_pipeline);
}
static void
paint_matrix_pipeline (CoglPipeline *pipeline)
{
CoglMatrix matrices[4];
float matrix_floats[16 * 4];
int uniform_location;
int i;
for (i = 0; i < 4; i++)
cogl_matrix_init_identity (matrices + i);
/* Use the first matrix to make the color red */
cogl_matrix_translate (matrices + 0, 1.0f, 0.0f, 0.0f);
/* Rotate the vertex so that it ends up green */
cogl_matrix_rotate (matrices + 1, 90.0f, 0.0f, 0.0f, 1.0f);
/* Scale the vertex so it ends up halved */
cogl_matrix_scale (matrices + 2, 0.5f, 0.5f, 0.5f);
/* Add a blue component in the final matrix. The final matrix is
uploaded as transposed so we need to transpose first to cancel
that out */
cogl_matrix_translate (matrices + 3, 0.0f, 0.0f, 1.0f);
cogl_matrix_transpose (matrices + 3);
for (i = 0; i < 4; i++)
memcpy (matrix_floats + i * 16,
cogl_matrix_get_array (matrices + i),
sizeof (float) * 16);
/* Set the first three matrices as transposed */
uniform_location =
cogl_pipeline_get_uniform_location (pipeline, "matrix_array");
cogl_pipeline_set_uniform_matrix (pipeline,
uniform_location,
4, /* dimensions */
3, /* count */
FALSE, /* not transposed */
matrix_floats);
/* Set the last matrix as untransposed */
uniform_location =
cogl_pipeline_get_uniform_location (pipeline, "matrix_array[3]");
cogl_pipeline_set_uniform_matrix (pipeline,
uniform_location,
4, /* dimensions */
1, /* count */
TRUE, /* transposed */
matrix_floats + 16 * 3);
paint_pipeline (pipeline, 12);
}
static void
paint_vector_pipeline (CoglPipeline *pipeline)
{
float vector_array_values[] = { 1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f };
float short_vector_values[] = { 0.0f, 0.0f, 1.0f };
int uniform_location;
uniform_location =
cogl_pipeline_get_uniform_location (pipeline, "vector_array");
cogl_pipeline_set_uniform_float (pipeline,
uniform_location,
4, /* n_components */
2, /* count */
vector_array_values);
uniform_location =
cogl_pipeline_get_uniform_location (pipeline, "short_vector");
cogl_pipeline_set_uniform_float (pipeline,
uniform_location,
3, /* n_components */
1, /* count */
short_vector_values);
paint_pipeline (pipeline, 13);
}
static void
paint_int_pipeline (CoglPipeline *pipeline)
{
int vector_array_values[] = { 0x00, 0x00, 0xff, 0x00,
0x00, 0xff, 0x00, 0x00 };
int single_value = 0x80;
int uniform_location;
uniform_location =
cogl_pipeline_get_uniform_location (pipeline, "vector_array");
cogl_pipeline_set_uniform_int (pipeline,
uniform_location,
4, /* n_components */
2, /* count */
vector_array_values);
uniform_location =
cogl_pipeline_get_uniform_location (pipeline, "single_value");
cogl_pipeline_set_uniform_1i (pipeline,
uniform_location,
single_value);
paint_pipeline (pipeline, 14);
}
static void
paint_long_pipeline (TestState *state)
{
int i;
for (i = 0; i < LONG_ARRAY_SIZE; i++)
{
int location = state->long_uniform_locations[i];
cogl_pipeline_set_uniform_1i (state->long_pipeline,
location,
i == LONG_ARRAY_SIZE - 1);
}
paint_pipeline (state->long_pipeline, 15);
}
static void
paint (TestState *state)
{
CoglColor color;
cogl_color_init_from_4ub (&color, 0, 0, 0, 255);
cogl_clear (&color, COGL_BUFFER_BIT_COLOR);
paint_color_pipelines (state);
paint_matrix_pipeline (state->matrix_pipeline);
paint_vector_pipeline (state->vector_pipeline);
paint_int_pipeline (state->int_pipeline);
}
static void
check_pos (int pos, guint32 color)
{
test_utils_check_pixel (pos * 10 + 5, 5, color);
}
static void
validate_result (void)
{
int i;
check_pos (0, 0xff0000ff);
check_pos (1, 0xffff00ff);
check_pos (2, 0xff00ffff);
for (i = 0; i <= 8; i++)
{
int green_value = i / 8.0f * 255.0f + 0.5f;
check_pos (i + 3, 0xff0000ff + (green_value << 16));
}
check_pos (12, 0x0080ffff);
check_pos (13, 0xffffffff);
check_pos (14, 0x80ffffff);
}
static void
validate_long_pipeline_result (void)
{
check_pos (15, 0xff0000ff);
}
void
test_cogl_pipeline_uniforms (TestUtilsGTestFixture *fixture,
void *user_data)
{
TestUtilsSharedState *shared_state = user_data;
/* If shaders aren't supported then we can't run the test */
if (cogl_features_available (COGL_FEATURE_SHADERS_GLSL))
{
TestState state;
state.ctx = shared_state->ctx;
init_state (&state);
cogl_ortho (/* left, right */
0, cogl_framebuffer_get_width (shared_state->fb),
/* bottom, top */
cogl_framebuffer_get_height (shared_state->fb), 0,
/* z near, far */
-1, 100);
paint (&state);
validate_result ();
/* Try the test again after querying the location of a large
number of uniforms. This should verify that the bitmasks
still work even if they have to allocate a separate array to
store the bits */
init_long_pipeline_state (&state);
paint (&state);
paint_long_pipeline (&state);
validate_result ();
validate_long_pipeline_result ();
destroy_state (&state);
if (cogl_test_verbose ())
g_print ("OK\n");
}
else if (cogl_test_verbose ())
g_print ("Skipping\n");
}