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 (test_ctx,
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_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb, offset_x, offset_y, 0.0f);
cogl_framebuffer_draw_attributes (test_fb,
state->pipeline,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
6, /* n_vertices */
attributes,
2 /* n_attributes */);
cogl_framebuffer_pop_matrix (test_fb);
cogl_object_unref (attributes[1]);
cogl_object_unref (attributes[0]);
cogl_object_unref (buffer);
test_utils_check_pixel (test_fb, offset_x + 5, offset_y + 5, 0xff0000ff);
test_utils_check_pixel (test_fb, offset_x + 15, offset_y + 5, 0x00ff00ff);
}
static void
paint (Data *data)
{
CoglFramebuffer *fb = data->fb;
float rotation;
cogl_framebuffer_clear4f (fb,
COGL_BUFFER_BIT_COLOR|COGL_BUFFER_BIT_DEPTH,
0, 0, 0, 1);
cogl_framebuffer_push_matrix (fb);
cogl_framebuffer_translate (fb,
data->framebuffer_width / 2,
data->framebuffer_height / 2,
0);
cogl_framebuffer_scale (fb, 75, 75, 75);
/* Update the rotation based on the time the application has been
running so that we get a linear animation regardless of the frame
rate */
rotation = g_timer_elapsed (data->timer, NULL) * 60.0f;
/* Rotate the cube separately around each axis.
*
* Note: Cogl matrix manipulation follows the same rules as for
* OpenGL. We use column-major matrices and - if you consider the
* transformations happening to the model - then they are combined
* in reverse order which is why the rotation is done last, since
* we want it to be a rotation around the origin, before it is
* scaled and translated.
*/
cogl_framebuffer_rotate (fb, rotation, 0, 0, 1);
cogl_framebuffer_rotate (fb, rotation, 0, 1, 0);
cogl_framebuffer_rotate (fb, rotation, 1, 0, 0);
cogl_framebuffer_draw_primitive (fb, data->crate_pipeline, data->prim);
cogl_framebuffer_pop_matrix (fb);
/* And finally render our Pango layouts... */
cogl_pango_show_layout (fb,
data->hello_label,
(data->framebuffer_width / 2) -
(data->hello_label_width / 2),
(data->framebuffer_height / 2) -
(data->hello_label_height / 2),
&white);
}
static void
redraw (Data *data)
{
CoglFramebuffer *fb = data->fb;
cogl_framebuffer_clear4f (fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
cogl_framebuffer_push_matrix (fb);
cogl_framebuffer_translate (fb, data->center_x, -data->center_y, 0.0f);
cogl_primitive_draw (data->triangle, fb, data->pipeline);
cogl_framebuffer_pop_matrix (fb);
cogl_onscreen_swap_buffers (COGL_ONSCREEN (fb));
}
int
main (int argc, char **argv)
{
CoglOnscreenTemplate *onscreen_template;
CoglDisplay *display;
CoglContext *ctx;
CoglOnscreen *onscreen;
CoglFramebuffer *fb;
CoglError *error = NULL;
CoglVertexP2C4 triangle_vertices[] = {
{0, 0.7, 0xff, 0x00, 0x00, 0x80},
{-0.7, -0.7, 0x00, 0xff, 0x00, 0xff},
{0.7, -0.7, 0x00, 0x00, 0xff, 0xff}
};
CoglPrimitive *triangle;
CoglTexture *tex;
CoglOffscreen *offscreen;
CoglFramebuffer *offscreen_fb;
CoglPipeline *pipeline;
onscreen_template = cogl_onscreen_template_new (NULL);
cogl_onscreen_template_set_samples_per_pixel (onscreen_template, 4);
display = cogl_display_new (NULL, onscreen_template);
if (!cogl_display_setup (display, &error))
{
fprintf (stderr, "Platform doesn't support onscreen 4x msaa rendering: %s\n",
error->message);
return 1;
}
ctx = cogl_context_new (display, &error);
if (!ctx)
{
fprintf (stderr, "Failed to create context: %s\n", error->message);
return 1;
}
onscreen = cogl_onscreen_new (ctx, 640, 480);
fb = COGL_FRAMEBUFFER (onscreen);
cogl_framebuffer_set_samples_per_pixel (fb, 4);
if (!cogl_framebuffer_allocate (fb, &error))
{
fprintf (stderr, "Failed to allocate 4x msaa offscreen framebuffer, "
"disabling msaa for onscreen rendering: %s\n", error->message);
cogl_error_free (error);
cogl_framebuffer_set_samples_per_pixel (fb, 0);
error = NULL;
if (!cogl_framebuffer_allocate (fb, &error))
{
fprintf (stderr, "Failed to allocate framebuffer: %s\n", error->message);
return 1;
}
}
cogl_onscreen_show (onscreen);
tex = cogl_texture_new_with_size (ctx,
320, 480,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
offscreen = cogl_offscreen_new_to_texture (tex);
offscreen_fb = COGL_FRAMEBUFFER (offscreen);
cogl_framebuffer_set_samples_per_pixel (offscreen_fb, 4);
if (!cogl_framebuffer_allocate (offscreen_fb, &error))
{
cogl_error_free (error);
error = NULL;
fprintf (stderr, "Failed to allocate 4x msaa offscreen framebuffer, "
"disabling msaa for offscreen rendering");
cogl_framebuffer_set_samples_per_pixel (offscreen_fb, 0);
}
triangle = cogl_primitive_new_p2c4 (ctx, COGL_VERTICES_MODE_TRIANGLES,
3, triangle_vertices);
pipeline = cogl_pipeline_new (ctx);
for (;;) {
CoglPollFD *poll_fds;
int n_poll_fds;
int64_t timeout;
CoglPipeline *texture_pipeline;
cogl_framebuffer_clear4f (fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
cogl_framebuffer_push_matrix (fb);
cogl_framebuffer_scale (fb, 0.5, 1, 1);
cogl_framebuffer_translate (fb, -1, 0, 0);
cogl_framebuffer_draw_primitive (fb, pipeline, triangle);
cogl_framebuffer_pop_matrix (fb);
cogl_framebuffer_draw_primitive (fb, pipeline, triangle);
cogl_framebuffer_resolve_samples (offscreen_fb);
texture_pipeline = cogl_pipeline_new (ctx);
cogl_pipeline_set_layer_texture (texture_pipeline, 0, tex);
cogl_framebuffer_draw_rectangle (fb, texture_pipeline, 0, 1, 1, -1);
cogl_object_unref (texture_pipeline);
cogl_onscreen_swap_buffers (onscreen);
cogl_poll_get_info (ctx, &poll_fds, &n_poll_fds, &timeout);
g_poll ((GPollFD *) poll_fds, n_poll_fds, 0);
cogl_poll_dispatch (ctx, poll_fds, n_poll_fds);
}
return 0;
}
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 (test_ctx,
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_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb, offset_x, offset_y, 0.0f);
cogl_framebuffer_draw_attributes (test_fb,
state->pipeline,
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 (test_ctx,
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_framebuffer_translate (test_fb, 20, 0, 0);
cogl_framebuffer_draw_attributes (test_fb,
state->pipeline,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
3, /* n_vertices */
attributes,
2 /* n_attributes */);
cogl_framebuffer_pop_matrix (test_fb);
cogl_object_unref (attributes[0]);
cogl_object_unref (attributes[1]);
cogl_object_unref (buffer);
cogl_object_unref (unnorm_buffer);
test_utils_check_pixel (test_fb, offset_x + 5, offset_y + 5, 0xff0000ff);
test_utils_check_pixel (test_fb, offset_x + 15, offset_y + 5, 0x00ff00ff);
test_utils_check_pixel (test_fb, 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 (test_ctx);
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 (test_ctx,
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_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb,
offset_x + 10.0f,
offset_y + 10.0f,
0.0f);
cogl_framebuffer_draw_attributes (test_fb,
pipeline,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
3, /* n_vertices */
attributes,
1 /* n_attributes */);
cogl_framebuffer_pop_matrix (test_fb);
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_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb,
offset_x + 10.0f - 65525.0f,
offset_y - 65525,
0.0f);
cogl_framebuffer_draw_attributes (test_fb,
pipeline2,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
3, /* n_vertices */
attributes,
1 /* n_attributes */);
cogl_framebuffer_pop_matrix (test_fb);
cogl_object_unref (attributes[0]);
cogl_object_unref (pipeline2);
cogl_object_unref (pipeline);
cogl_object_unref (buffer);
test_utils_check_pixel (test_fb, offset_x + 5, offset_y + 5, 0xff0000ff);
test_utils_check_pixel (test_fb, offset_x + 15, offset_y + 5, 0x00ff00ff);
}
CoglPipeline *
_st_create_shadow_pipeline_from_actor (StShadow *shadow_spec,
ClutterActor *actor)
{
CoglPipeline *shadow_pipeline = NULL;
if (CLUTTER_IS_TEXTURE (actor))
{
CoglTexture *texture;
texture = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (actor));
shadow_pipeline = _st_create_shadow_pipeline (shadow_spec, texture);
}
else
{
CoglTexture *buffer;
CoglOffscreen *offscreen;
CoglFramebuffer *fb;
ClutterActorBox box;
CoglColor clear_color;
float width, height;
CoglError *catch_error = NULL;
clutter_actor_get_allocation_box (actor, &box);
clutter_actor_box_get_size (&box, &width, &height);
if (width == 0 || height == 0)
return NULL;
buffer = cogl_texture_new_with_size (width,
height,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
if (buffer == NULL)
return NULL;
offscreen = cogl_offscreen_new_with_texture (buffer);
fb = COGL_FRAMEBUFFER (offscreen);
if (!cogl_framebuffer_allocate (fb, &catch_error))
{
cogl_error_free (catch_error);
cogl_object_unref (buffer);
return NULL;
}
cogl_color_init_from_4ub (&clear_color, 0, 0, 0, 0);
/* XXX: There's no way to render a ClutterActor to an offscreen
* as it uses the implicit API. */
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
cogl_push_framebuffer (fb);
G_GNUC_END_IGNORE_DEPRECATIONS;
cogl_framebuffer_clear (fb, COGL_BUFFER_BIT_COLOR, &clear_color);
cogl_framebuffer_translate (fb, -box.x1, -box.y1, 0);
cogl_framebuffer_orthographic (fb, 0, 0, width, height, 0, 1.0);
clutter_actor_set_opacity_override (actor, 255);
clutter_actor_paint (actor);
clutter_actor_set_opacity_override (actor, -1);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
cogl_pop_framebuffer ();
G_GNUC_END_IGNORE_DEPRECATIONS;
cogl_object_unref (fb);
shadow_pipeline = _st_create_shadow_pipeline (shadow_spec, buffer);
cogl_object_unref (buffer);
}
return shadow_pipeline;
}
void
cogl_translate (float x, float y, float z)
{
cogl_framebuffer_translate (cogl_get_draw_framebuffer (), x, y, z);
}
static void
paint_test_backface_culling (TestState *state,
CoglFramebuffer *framebuffer)
{
int draw_num;
CoglPipeline *base_pipeline = cogl_pipeline_new (test_ctx);
cogl_framebuffer_orthographic (framebuffer,
0, 0,
state->width,
state->height,
-1,
100);
cogl_framebuffer_clear4f (framebuffer,
COGL_BUFFER_BIT_COLOR | COGL_BUFFER_BIT_STENCIL,
0, 0, 0, 1);
cogl_pipeline_set_layer_texture (base_pipeline, 0, state->texture);
cogl_pipeline_set_layer_filters (base_pipeline, 0,
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
/* Render the scene eight times to test all of the combinations of
cull face mode and winding orders */
for (draw_num = 0; draw_num < 8; draw_num++)
{
float x1 = 0, x2, y1 = 0, y2 = (float)(TEXTURE_RENDER_SIZE);
CoglTextureVertex verts[4];
CoglPipeline *pipeline;
cogl_framebuffer_push_matrix (framebuffer);
cogl_framebuffer_translate (framebuffer,
0, TEXTURE_RENDER_SIZE * draw_num, 0);
pipeline = cogl_pipeline_copy (base_pipeline);
cogl_pipeline_set_front_face_winding (pipeline, FRONT_WINDING (draw_num));
cogl_pipeline_set_cull_face_mode (pipeline, CULL_FACE_MODE (draw_num));
memset (verts, 0, sizeof (verts));
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
/* Draw a front-facing texture */
cogl_framebuffer_draw_rectangle (framebuffer, pipeline, x1, y1, x2, y2);
x1 = x2;
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
/* Draw a front-facing texture with flipped texcoords */
cogl_framebuffer_draw_textured_rectangle (framebuffer,
pipeline,
x1, y1, x2, y2,
1.0, 0.0, 0.0, 1.0);
x1 = x2;
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
/* Draw a back-facing texture */
cogl_framebuffer_draw_rectangle (framebuffer, pipeline, x2, y1, x1, y2);
cogl_framebuffer_pop_matrix (framebuffer);
cogl_object_unref (pipeline);
}
cogl_object_unref (base_pipeline);
}
static void
test_short_verts (TestState *state, int offset_x, int offset_y)
{
CoglAttribute *attributes[2];
CoglAttributeBuffer *buffer;
CoglPipeline *pipeline, *pipeline2;
CoglSnippet *snippet;
CoglPrimitive *primitive;
static const ShortVert short_verts[] =
{
{ -10, -10, /**/ 0xffff, 0, 0, 0xffff },
{ -1, -10, /**/ 0xffff, 0, 0, 0xffff },
{ -5, -1, /**/ 0xffff, 0, 0, 0xffff }
};
pipeline = cogl_pipeline_copy (state->pipeline);
cogl_pipeline_set_color4ub (pipeline, 255, 0, 0, 255);
buffer = cogl_attribute_buffer_new (test_ctx,
sizeof (short_verts), short_verts);
attributes[0] = cogl_attribute_new (buffer,
"cogl_position_in",
sizeof (ShortVert),
G_STRUCT_OFFSET (ShortVert, x),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_SHORT);
attributes[1] = cogl_attribute_new (buffer,
"color",
sizeof (ShortVert),
G_STRUCT_OFFSET (ShortVert, r),
4, /* n_components */
COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT);
cogl_attribute_set_normalized (attributes[1], TRUE);
cogl_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb,
offset_x + 10.0f,
offset_y + 10.0f,
0.0f);
primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
3, /* n_vertices */
attributes,
2); /* n_attributes */
cogl_primitive_draw (primitive, test_fb, pipeline);
cogl_object_unref (primitive);
cogl_framebuffer_pop_matrix (test_fb);
cogl_object_unref (attributes[0]);
/* Test again treating the attribute as unsigned */
attributes[0] = cogl_attribute_new (buffer,
"cogl_position_in",
sizeof (ShortVert),
G_STRUCT_OFFSET (ShortVert, x),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT);
/* XXX: this is a hack to force the pipeline to use the glsl backend
* because we know it's not possible to test short vertex position
* components with the legacy GL backend since which might otherwise
* be used internally... */
pipeline2 = cogl_pipeline_new (test_ctx);
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX,
"attribute vec4 color;",
"cogl_color_out = vec4 (0.0, 1.0, 0.0, 1.0);");
cogl_pipeline_add_snippet (pipeline2, snippet);
cogl_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb,
offset_x + 10.0f - 65525.0f,
offset_y - 65525,
0.0f);
primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
3, /* n_vertices */
attributes,
1); /* n_attributes */
cogl_primitive_draw (primitive, test_fb, pipeline2);
cogl_object_unref (primitive);
cogl_framebuffer_pop_matrix (test_fb);
cogl_object_unref (attributes[0]);
cogl_object_unref (pipeline2);
cogl_object_unref (pipeline);
cogl_object_unref (buffer);
test_utils_check_pixel (test_fb, offset_x + 5, offset_y + 5, 0xff0000ff);
test_utils_check_pixel (test_fb, offset_x + 15, offset_y + 5, 0x00ff00ff);
}
static void
do_test (CoglBool check_orientation)
{
int fb_width = cogl_framebuffer_get_width (test_fb);
int fb_height = cogl_framebuffer_get_height (test_fb);
CoglPrimitive *prim;
CoglError *error = NULL;
CoglTexture2D *tex_2d;
CoglPipeline *pipeline, *solid_pipeline;
CoglBool res;
int tex_height;
cogl_framebuffer_orthographic (test_fb,
0, 0, /* x_1, y_1 */
fb_width, /* x_2 */
fb_height /* y_2 */,
-1, 100 /* near/far */);
cogl_framebuffer_clear4f (test_fb,
COGL_BUFFER_BIT_COLOR,
1.0f, 1.0f, 1.0f, 1.0f);
/* If we're not checking the orientation of the point sprite then
* we'll set the height of the texture to 1 so that the vertical
* orientation does not matter */
if (check_orientation)
tex_height = 2;
else
tex_height = 1;
tex_2d = cogl_texture_2d_new_from_data (test_ctx,
2, tex_height, /* width/height */
COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
6, /* row stride */
tex_data,
&error);
g_assert (tex_2d != NULL);
g_assert (error == NULL);
pipeline = cogl_pipeline_new (test_ctx);
cogl_pipeline_set_layer_texture (pipeline, 0, COGL_TEXTURE (tex_2d));
res = cogl_pipeline_set_layer_point_sprite_coords_enabled (pipeline,
/* layer_index */
0,
/* enable */
TRUE,
&error);
g_assert (res == TRUE);
g_assert (error == NULL);
cogl_pipeline_set_layer_filters (pipeline,
0, /* layer_index */
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_pipeline_set_point_size (pipeline, POINT_SIZE);
prim = cogl_primitive_new_p2t2 (test_ctx,
COGL_VERTICES_MODE_POINTS,
1, /* n_vertices */
&point);
cogl_primitive_draw (prim, test_fb, pipeline);
/* Render the primitive again without point sprites to make sure
disabling it works */
solid_pipeline = cogl_pipeline_copy (pipeline);
cogl_pipeline_set_layer_point_sprite_coords_enabled (solid_pipeline,
/* layer_index */
0,
/* enable */
FALSE,
&error);
cogl_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb,
POINT_SIZE * 2, /* x */
0.0f, /* y */
0.0f /* z */);
cogl_primitive_draw (prim, test_fb, solid_pipeline);
cogl_framebuffer_pop_matrix (test_fb);
cogl_object_unref (prim);
cogl_object_unref (solid_pipeline);
cogl_object_unref (pipeline);
cogl_object_unref (tex_2d);
test_utils_check_pixel (test_fb,
POINT_SIZE - POINT_SIZE / 4,
POINT_SIZE - POINT_SIZE / 4,
0x0000ffff);
test_utils_check_pixel (test_fb,
POINT_SIZE + POINT_SIZE / 4,
POINT_SIZE - POINT_SIZE / 4,
0x00ff00ff);
test_utils_check_pixel (test_fb,
POINT_SIZE - POINT_SIZE / 4,
POINT_SIZE + POINT_SIZE / 4,
check_orientation ?
0x00ffffff :
0x0000ffff);
test_utils_check_pixel (test_fb,
POINT_SIZE + POINT_SIZE / 4,
POINT_SIZE + POINT_SIZE / 4,
check_orientation ?
0xff0000ff :
0x00ff00ff);
/* When rendering without the point sprites all of the texture
coordinates should be 0,0 so it should get the top-left texel
which is blue */
test_utils_check_region (test_fb,
POINT_SIZE * 3 - POINT_SIZE / 2 + 1,
POINT_SIZE - POINT_SIZE / 2 + 1,
POINT_SIZE - 2, POINT_SIZE - 2,
0x0000ffff);
if (cogl_test_verbose ())
g_print ("OK\n");
}
static CoglBool
draw_rectangle (TestState *state,
int x,
int y,
TestDepthState *rect_state,
CoglBool legacy_mode)
{
uint8_t Cr = MASK_RED (rect_state->color);
uint8_t Cg = MASK_GREEN (rect_state->color);
uint8_t Cb = MASK_BLUE (rect_state->color);
uint8_t 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 (test_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_set_depth_write_enabled (test_fb,
rect_state->fb_write_enable);
cogl_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb, 0, 0, rect_state->depth);
cogl_framebuffer_draw_rectangle (test_fb,
pipeline,
x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
cogl_framebuffer_pop_matrix (test_fb);
}
else
{
cogl_push_framebuffer (test_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
do_test (CoglBool check_orientation,
CoglBool use_glsl)
{
int fb_width = cogl_framebuffer_get_width (test_fb);
int fb_height = cogl_framebuffer_get_height (test_fb);
CoglPrimitive *prim;
CoglError *error = NULL;
CoglTexture2D *tex_2d;
CoglPipeline *pipeline, *solid_pipeline;
int tex_height;
cogl_framebuffer_orthographic (test_fb,
0, 0, /* x_1, y_1 */
fb_width, /* x_2 */
fb_height /* y_2 */,
-1, 100 /* near/far */);
cogl_framebuffer_clear4f (test_fb,
COGL_BUFFER_BIT_COLOR,
1.0f, 1.0f, 1.0f, 1.0f);
/* If we're not checking the orientation of the point sprite then
* we'll set the height of the texture to 1 so that the vertical
* orientation does not matter */
if (check_orientation)
tex_height = 2;
else
tex_height = 1;
tex_2d = cogl_texture_2d_new_from_data (test_ctx,
2, tex_height, /* width/height */
COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
6, /* row stride */
tex_data,
&error);
g_assert (tex_2d != NULL);
g_assert (error == NULL);
pipeline = cogl_pipeline_new (test_ctx);
cogl_pipeline_set_layer_texture (pipeline, 0, tex_2d);
cogl_pipeline_set_layer_filters (pipeline,
0, /* layer_index */
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_pipeline_set_point_size (pipeline, POINT_SIZE);
/* If we're using GLSL then we don't need to enable point sprite
* coords and we can just directly reference cogl_point_coord in the
* snippet */
if (use_glsl)
{
CoglSnippet *snippet =
cogl_snippet_new (COGL_SNIPPET_HOOK_TEXTURE_LOOKUP,
NULL, /* declarations */
NULL /* post */);
static const char source[] =
" cogl_texel = texture2D (cogl_sampler, cogl_point_coord);\n";
cogl_snippet_set_replace (snippet, source);
/* Keep a reference to the original pipeline because there is no
* way to remove a snippet in order to recreate the solid
* pipeline */
solid_pipeline = cogl_pipeline_copy (pipeline);
cogl_pipeline_add_layer_snippet (pipeline, 0, snippet);
cogl_object_unref (snippet);
}
else
{
CoglBool res =
cogl_pipeline_set_layer_point_sprite_coords_enabled (pipeline,
/* layer_index */
0,
/* enable */
TRUE,
&error);
g_assert (res == TRUE);
g_assert (error == NULL);
solid_pipeline = cogl_pipeline_copy (pipeline);
res =
cogl_pipeline_set_layer_point_sprite_coords_enabled (solid_pipeline,
/* layer_index */
0,
/* enable */
FALSE,
&error);
g_assert (res == TRUE);
g_assert (error == NULL);
}
prim = cogl_primitive_new_p2t2 (test_ctx,
COGL_VERTICES_MODE_POINTS,
1, /* n_vertices */
&point);
cogl_primitive_draw (prim, test_fb, pipeline);
/* Render the primitive again without point sprites to make sure
disabling it works */
cogl_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb,
POINT_SIZE * 2, /* x */
0.0f, /* y */
0.0f /* z */);
cogl_primitive_draw (prim, test_fb, solid_pipeline);
cogl_framebuffer_pop_matrix (test_fb);
cogl_object_unref (prim);
cogl_object_unref (solid_pipeline);
cogl_object_unref (pipeline);
cogl_object_unref (tex_2d);
test_utils_check_pixel (test_fb,
POINT_SIZE - POINT_SIZE / 4,
POINT_SIZE - POINT_SIZE / 4,
0x0000ffff);
test_utils_check_pixel (test_fb,
POINT_SIZE + POINT_SIZE / 4,
POINT_SIZE - POINT_SIZE / 4,
0x00ff00ff);
test_utils_check_pixel (test_fb,
POINT_SIZE - POINT_SIZE / 4,
POINT_SIZE + POINT_SIZE / 4,
check_orientation ?
0x00ffffff :
0x0000ffff);
test_utils_check_pixel (test_fb,
POINT_SIZE + POINT_SIZE / 4,
POINT_SIZE + POINT_SIZE / 4,
check_orientation ?
0xff0000ff :
0x00ff00ff);
/* When rendering without the point sprites all of the texture
coordinates should be 0,0 so it should get the top-left texel
which is blue */
test_utils_check_region (test_fb,
POINT_SIZE * 3 - POINT_SIZE / 2 + 1,
POINT_SIZE - POINT_SIZE / 2 + 1,
POINT_SIZE - 2, POINT_SIZE - 2,
0x0000ffff);
if (cogl_test_verbose ())
g_print ("OK\n");
}
