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mutter-performance-source/tests/conform/test-depth-test.c
Robert Bragg 3881fd3259 Adds cogl_framebuffer_draw_[*_]rectangle functions 
This adds experimental 2.0 api replacements for the cogl_rectangle[_*]
functions that don't depend on having a current pipeline set on the
context via cogl_{set,push}_source() or having a current framebuffer set
on the context via cogl_push_framebuffer(). The aim for 2.0 is to switch
away from having a statefull context that affects drawing to having
framebuffer drawing apis that are explicitly passed a framebuffer and
pipeline.

To test this change several of the conformance tests were updated to use
this api instead of cogl_rectangle and
cogl_rectangle_with_texture_coords. Since it's quite laborious going
through all of the conformance tests the opportunity was taken to make
other clean ups in the conformance tests to replace other uses of
1.x api with experimental 2.0 api so long as that didn't affect what was
being tested.
2012-03-20 12:33:40 +00:00

274 lines
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#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
#define QUAD_WIDTH 20
#define RED 0
#define GREEN 1
#define BLUE 2
#define ALPHA 3
#define MASK_RED(COLOR) ((COLOR & 0xff000000) >> 24)
#define MASK_GREEN(COLOR) ((COLOR & 0xff0000) >> 16)
#define MASK_BLUE(COLOR) ((COLOR & 0xff00) >> 8)
#define MASK_ALPHA(COLOR) (COLOR & 0xff)
typedef struct _TestState
{
int padding;
} TestState;
typedef struct
{
guint32 color;
float depth;
gboolean test_enable;
CoglDepthTestFunction test_function;
gboolean write_enable;
float range_near;
float range_far;
} TestDepthState;
static gboolean
draw_rectangle (TestState *state,
int x,
int y,
TestDepthState *rect_state,
gboolean legacy_mode)
{
guint8 Cr = MASK_RED (rect_state->color);
guint8 Cg = MASK_GREEN (rect_state->color);
guint8 Cb = MASK_BLUE (rect_state->color);
guint8 Ca = MASK_ALPHA (rect_state->color);
CoglPipeline *pipeline;
CoglDepthState depth_state;
cogl_depth_state_init (&depth_state);
cogl_depth_state_set_test_enabled (&depth_state, rect_state->test_enable);
cogl_depth_state_set_test_function (&depth_state, rect_state->test_function);
cogl_depth_state_set_write_enabled (&depth_state, rect_state->write_enable);
cogl_depth_state_set_range (&depth_state,
rect_state->range_near,
rect_state->range_far);
pipeline = cogl_pipeline_new (ctx);
if (!cogl_pipeline_set_depth_state (pipeline, &depth_state, NULL))
{
cogl_object_unref (pipeline);
return FALSE;
}
if (!legacy_mode)
{
cogl_pipeline_set_color4ub (pipeline, Cr, Cg, Cb, Ca);
cogl_framebuffer_push_matrix (fb);
cogl_framebuffer_translate (fb, 0, 0, rect_state->depth);
cogl_framebuffer_draw_rectangle (fb,
pipeline,
x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
cogl_framebuffer_pop_matrix (fb);
}
else
{
cogl_push_framebuffer (fb);
cogl_push_matrix ();
cogl_set_source_color4ub (Cr, Cg, Cb, Ca);
cogl_translate (0, 0, rect_state->depth);
cogl_rectangle (x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
cogl_pop_matrix ();
cogl_pop_framebuffer ();
}
cogl_object_unref (pipeline);
return TRUE;
}
static void
test_depth (TestState *state,
int x,
int y,
TestDepthState *rect0_state,
TestDepthState *rect1_state,
TestDepthState *rect2_state,
gboolean legacy_mode,
guint32 expected_result)
{
gboolean missing_feature = FALSE;
if (rect0_state)
missing_feature |= !draw_rectangle (state, x, y, rect0_state, legacy_mode);
if (rect1_state)
missing_feature |= !draw_rectangle (state, x, y, rect1_state, legacy_mode);
if (rect2_state)
missing_feature |= !draw_rectangle (state, x, y, rect2_state, legacy_mode);
/* We don't consider it an error that we can't test something
* the driver doesn't support. */
if (missing_feature)
return;
test_utils_check_pixel (fb,
x * QUAD_WIDTH + (QUAD_WIDTH / 2),
y * QUAD_WIDTH + (QUAD_WIDTH / 2),
expected_result);
}
static void
paint (TestState *state)
{
/* Sanity check a few of the different depth test functions
* and that depth writing can be disabled... */
{
/* Closest */
TestDepthState rect0_state = {
0xff0000ff, /* rgba color */
-10, /* depth */
FALSE, /* depth test enable */
COGL_DEPTH_TEST_FUNCTION_ALWAYS,
TRUE, /* depth write enable */
0, 1 /* depth range */
};
/* Furthest */
TestDepthState rect1_state = {
0x00ff00ff, /* rgba color */
-70, /* depth */
TRUE, /* depth test enable */
COGL_DEPTH_TEST_FUNCTION_ALWAYS,
TRUE, /* depth write enable */
0, 1 /* depth range */
};
/* In the middle */
TestDepthState rect2_state = {
0x0000ffff, /* rgba color */
-20, /* depth */
TRUE, /* depth test enable */
COGL_DEPTH_TEST_FUNCTION_NEVER,
TRUE, /* depth write enable */
0, 1 /* depth range */
};
test_depth (state, 0, 0, /* position */
&rect0_state, &rect1_state, &rect2_state,
FALSE, /* legacy mode */
0x00ff00ff); /* expected */
rect2_state.test_function = COGL_DEPTH_TEST_FUNCTION_ALWAYS;
test_depth (state, 1, 0, /* position */
&rect0_state, &rect1_state, &rect2_state,
FALSE, /* legacy mode */
0x0000ffff); /* expected */
rect2_state.test_function = COGL_DEPTH_TEST_FUNCTION_LESS;
test_depth (state, 2, 0, /* position */
&rect0_state, &rect1_state, &rect2_state,
FALSE, /* legacy mode */
0x0000ffff); /* expected */
rect2_state.test_function = COGL_DEPTH_TEST_FUNCTION_GREATER;
test_depth (state, 3, 0, /* position */
&rect0_state, &rect1_state, &rect2_state,
FALSE, /* legacy mode */
0x00ff00ff); /* expected */
rect0_state.test_enable = TRUE;
rect1_state.write_enable = FALSE;
test_depth (state, 4, 0, /* position */
&rect0_state, &rect1_state, &rect2_state,
FALSE, /* legacy mode */
0x0000ffff); /* expected */
}
/* Check that the depth buffer values can be mapped into different
* ranges... */
{
/* Closest by depth, furthest by depth range */
TestDepthState rect0_state = {
0xff0000ff, /* rgba color */
-10, /* depth */
TRUE, /* depth test enable */
COGL_DEPTH_TEST_FUNCTION_ALWAYS,
TRUE, /* depth write enable */
0.5, 1 /* depth range */
};
/* Furthest by depth, nearest by depth range */
TestDepthState rect1_state = {
0x00ff00ff, /* rgba color */
-70, /* depth */
TRUE, /* depth test enable */
COGL_DEPTH_TEST_FUNCTION_GREATER,
TRUE, /* depth write enable */
0, 0.5 /* depth range */
};
test_depth (state, 0, 1, /* position */
&rect0_state, &rect1_state, NULL,
FALSE, /* legacy mode */
0xff0000ff); /* expected */
}
/* Test that the legacy cogl_set_depth_test_enabled() API still
* works... */
{
/* Nearest */
TestDepthState rect0_state = {
0xff0000ff, /* rgba color */
-10, /* depth */
FALSE, /* depth test enable */
COGL_DEPTH_TEST_FUNCTION_LESS,
TRUE, /* depth write enable */
0, 1 /* depth range */
};
/* Furthest */
TestDepthState rect1_state = {
0x00ff00ff, /* rgba color */
-70, /* depth */
FALSE, /* depth test enable */
COGL_DEPTH_TEST_FUNCTION_LESS,
TRUE, /* depth write enable */
0, 1 /* depth range */
};
cogl_set_depth_test_enabled (TRUE);
test_depth (state, 0, 2, /* position */
&rect0_state, &rect1_state, NULL,
TRUE, /* legacy mode */
0xff0000ff); /* expected */
cogl_set_depth_test_enabled (FALSE);
test_depth (state, 1, 2, /* position */
&rect0_state, &rect1_state, NULL,
TRUE, /* legacy mode */
0x00ff00ff); /* expected */
}
}
void
test_depth_test (void)
{
TestState state;
cogl_framebuffer_orthographic (fb, 0, 0,
cogl_framebuffer_get_width (fb),
cogl_framebuffer_get_height (fb),
-1,
100);
paint (&state);
if (cogl_test_verbose ())
g_print ("OK\n");
}
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