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Add a conformance test for custom attributes

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The test creates some pipelines with snippets with custom attributes
and uses CoglAttribute to define values for them.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts 2011-12-02 10:55:41 +00:00 committed by Robert Bragg
parent 3f28168f1e
commit 72097ac01d
3 changed files with 306 additions and 0 deletions
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1
tests/conform/Makefile.am
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@ -46,6 +46,7 @@ test_sources = \
test-snippets.c \
test-wrap-modes.c \
test-sub-texture.c \
test-custom-attributes.c \
$(NULL)
test_conformance_SOURCES = $(common_sources) $(test_sources)

1
tests/conform/test-conform-main.c
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@ -163,6 +163,7 @@ main (int argc, char **argv)
ADD_TEST ("/cogl/shaders", test_cogl_just_vertex_shader);
ADD_TEST ("/cogl/shaders", test_cogl_pipeline_uniforms);
ADD_TEST ("/cogl/shaders", test_cogl_snippets);
ADD_TEST ("/cogl/shaders", test_cogl_custom_attributes);
ADD_TEST ("/cogl/internal/bitmask", test_cogl_bitmask);

304
tests/conform/test-custom-attributes.c Normal file
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@ -0,0 +1,304 @@
#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
typedef struct _TestState
{
CoglPipeline *pipeline;
} TestState;
typedef struct
{
gint16 x, y;
float r, g, b, a;
} FloatVert;
typedef struct
{
gint16 x, y;
guint8 r, g, b, a;
} ByteVert;
typedef struct
{
gint16 x, y;
} ShortVert;
static void
test_float_verts (TestState *state, int offset_x, int offset_y)
{
CoglAttribute *attributes[2];
CoglAttributeBuffer *buffer;
static const FloatVert float_verts[] =
{
{ 0, 10, /**/ 1, 0, 0, 1 },
{ 10, 10, /**/ 1, 0, 0, 1 },
{ 5, 0, /**/ 1, 0, 0, 1 },
{ 10, 10, /**/ 0, 1, 0, 1 },
{ 20, 10, /**/ 0, 1, 0, 1 },
{ 15, 0, /**/ 0, 1, 0, 1 }
};
buffer = cogl_attribute_buffer_new (sizeof (float_verts), float_verts);
attributes[0] = cogl_attribute_new (buffer,
"cogl_position_in",
sizeof (FloatVert),
G_STRUCT_OFFSET (FloatVert, x),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_SHORT);
attributes[1] = cogl_attribute_new (buffer,
"color",
sizeof (FloatVert),
G_STRUCT_OFFSET (FloatVert, r),
4, /* n_components */
COGL_ATTRIBUTE_TYPE_FLOAT);
cogl_push_source (state->pipeline);
cogl_push_matrix ();
cogl_translate (offset_x, offset_y, 0.0f);
cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
6, /* n_vertices */
attributes,
2 /* n_attributes */);
cogl_pop_matrix ();
cogl_pop_source ();
cogl_object_unref (attributes[1]);
cogl_object_unref (attributes[0]);
cogl_object_unref (buffer);
test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
}
static void
test_byte_verts (TestState *state, int offset_x, int offset_y)
{
CoglAttribute *attributes[2];
CoglAttributeBuffer *buffer, *unnorm_buffer;
static const ByteVert norm_verts[] =
{
{ 0, 10, /**/ 255, 0, 0, 255 },
{ 10, 10, /**/ 255, 0, 0, 255 },
{ 5, 0, /**/ 255, 0, 0, 255 },
{ 10, 10, /**/ 0, 255, 0, 255 },
{ 20, 10, /**/ 0, 255, 0, 255 },
{ 15, 0, /**/ 0, 255, 0, 255 }
};
static const ByteVert unnorm_verts[] =
{
{ 0, 0, /**/ 0, 0, 1, 1 },
{ 0, 0, /**/ 0, 0, 1, 1 },
{ 0, 0, /**/ 0, 0, 1, 1 },
};
buffer = cogl_attribute_buffer_new (sizeof (norm_verts), norm_verts);
attributes[0] = cogl_attribute_new (buffer,
"cogl_position_in",
sizeof (ByteVert),
G_STRUCT_OFFSET (ByteVert, x),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_SHORT);
attributes[1] = cogl_attribute_new (buffer,
"color",
sizeof (ByteVert),
G_STRUCT_OFFSET (ByteVert, r),
4, /* n_components */
COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
cogl_attribute_set_normalized (attributes[1], TRUE);
cogl_push_source (state->pipeline);
cogl_push_matrix ();
cogl_translate (offset_x, offset_y, 0.0f);
cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
6, /* n_vertices */
attributes,
2 /* n_attributes */);
cogl_object_unref (attributes[1]);
/* Test again with unnormalized attributes */
unnorm_buffer = cogl_attribute_buffer_new (sizeof (unnorm_verts),
unnorm_verts);
attributes[1] = cogl_attribute_new (unnorm_buffer,
"color",
sizeof (ByteVert),
G_STRUCT_OFFSET (ByteVert, r),
4, /* n_components */
COGL_ATTRIBUTE_TYPE_BYTE);
cogl_translate (20, 0, 0);
cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
3, /* n_vertices */
attributes,
2 /* n_attributes */);
cogl_pop_matrix ();
cogl_pop_source ();
cogl_object_unref (attributes[0]);
cogl_object_unref (attributes[1]);
cogl_object_unref (buffer);
cogl_object_unref (unnorm_buffer);
test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
test_utils_check_pixel (offset_x + 25, offset_y + 5, 0x0000ffff);
}
static void
test_short_verts (TestState *state, int offset_x, int offset_y)
{
CoglAttribute *attributes[1];
CoglAttributeBuffer *buffer;
CoglPipeline *pipeline, *pipeline2;
CoglSnippet *snippet;
static const ShortVert short_verts[] =
{
{ -10, -10 },
{ -1, -10 },
{ -5, -1 }
};
pipeline = cogl_pipeline_new ();
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX_TRANSFORM,
"attribute vec2 pos;",
NULL);
cogl_snippet_set_replace (snippet,
"cogl_position_out = "
"cogl_modelview_projection_matrix * "
"vec4 (pos, 0.0, 1.0);");
cogl_pipeline_add_snippet (pipeline, snippet);
cogl_object_unref (snippet);
cogl_pipeline_set_color4ub (pipeline, 255, 0, 0, 255);
buffer = cogl_attribute_buffer_new (sizeof (short_verts), short_verts);
attributes[0] = cogl_attribute_new (buffer,
"pos",
sizeof (ShortVert),
G_STRUCT_OFFSET (ShortVert, x),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_SHORT);
cogl_push_source (pipeline);
cogl_push_matrix ();
cogl_translate (offset_x + 10.0f, offset_y + 10.0f, 0.0f);
cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
3, /* n_vertices */
attributes,
1 /* n_attributes */);
cogl_pop_matrix ();
cogl_pop_source ();
cogl_object_unref (attributes[0]);
/* Test again treating the attribute as unsigned */
attributes[0] = cogl_attribute_new (buffer,
"pos",
sizeof (ShortVert),
G_STRUCT_OFFSET (ShortVert, x),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT);
pipeline2 = cogl_pipeline_copy (pipeline);
cogl_pipeline_set_color4ub (pipeline2, 0, 255, 0, 255);
cogl_push_source (pipeline2);
cogl_push_matrix ();
cogl_translate (offset_x + 10.0f - 65525.0f, offset_y - 65525, 0.0f);
cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
3, /* n_vertices */
attributes,
1 /* n_attributes */);
cogl_pop_matrix ();
cogl_pop_source ();
cogl_object_unref (attributes[0]);
cogl_object_unref (pipeline2);
cogl_object_unref (pipeline);
cogl_object_unref (buffer);
test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
}
static void
paint (TestState *state)
{
CoglColor color;
cogl_color_init_from_4ub (&color, 0, 0, 0, 255);
cogl_clear (&color, COGL_BUFFER_BIT_COLOR);
test_float_verts (state, 0, 0);
test_byte_verts (state, 0, 10);
test_short_verts (state, 0, 20);
}
void
test_cogl_custom_attributes (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))
{
CoglSnippet *snippet;
TestState 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);
state.pipeline = cogl_pipeline_new ();
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX,
"attribute vec4 color;",
"cogl_color_out = color;");
cogl_pipeline_add_snippet (state.pipeline, snippet);
paint (&state);
cogl_object_unref (state.pipeline);
cogl_object_unref (snippet);
if (g_test_verbose ())
g_print ("OK\n");
}
else if (g_test_verbose ())
g_print ("Skipping\n");
}