CoglHandle
_st_create_shadow_material (StShadow *shadow_spec,
CoglHandle src_texture)
{
static CoglHandle shadow_material_template = COGL_INVALID_HANDLE;
CoglHandle material;
CoglHandle texture;
guchar *pixels_in, *pixels_out;
gint width_in, height_in, rowstride_in;
gint width_out, height_out, rowstride_out;
g_return_val_if_fail (shadow_spec != NULL, COGL_INVALID_HANDLE);
g_return_val_if_fail (src_texture != COGL_INVALID_HANDLE,
COGL_INVALID_HANDLE);
width_in = cogl_texture_get_width (src_texture);
height_in = cogl_texture_get_height (src_texture);
rowstride_in = (width_in + 3) & ~3;
pixels_in = g_malloc0 (rowstride_in * height_in);
cogl_texture_get_data (src_texture, COGL_PIXEL_FORMAT_A_8,
rowstride_in, pixels_in);
pixels_out = blur_pixels (pixels_in, width_in, height_in, rowstride_in,
shadow_spec->blur,
&width_out, &height_out, &rowstride_out);
g_free (pixels_in);
texture = cogl_texture_new_from_data (width_out,
height_out,
COGL_TEXTURE_NONE,
COGL_PIXEL_FORMAT_A_8,
COGL_PIXEL_FORMAT_A_8,
rowstride_out,
pixels_out);
g_free (pixels_out);
if (G_UNLIKELY (shadow_material_template == COGL_INVALID_HANDLE))
{
shadow_material_template = cogl_material_new ();
/* We set up the material to blend the shadow texture with the combine
* constant, but defer setting the latter until painting, so that we can
* take the actor's overall opacity into account. */
cogl_material_set_layer_combine (shadow_material_template, 0,
"RGBA = MODULATE (CONSTANT, TEXTURE[A])",
NULL);
}
material = cogl_material_copy (shadow_material_template);
cogl_material_set_layer (material, 0, texture);
cogl_handle_unref (texture);
return material;
}
static void
mx_fade_effect_paint_target (ClutterOffscreenEffect *effect)
{
guint8 opacity;
CoglColor color;
ClutterActor *actor;
CoglMaterial *material = clutter_offscreen_effect_get_target (effect);
MxFadeEffect *self = MX_FADE_EFFECT (effect);
MxFadeEffectPrivate *priv = self->priv;
if (priv->update_vbo)
mx_fade_effect_update_vbo (self);
if (!priv->vbo || !priv->indices || !material)
return;
/* Set the blend string if the material has changed so we can blend with
* the paint opacity.
*/
if (material != priv->old_material)
{
GError *error = NULL;
priv->old_material = material;
if (!cogl_material_set_layer_combine (material, 1,
"RGBA = MODULATE(PREVIOUS,CONSTANT)", &error))
{
g_warning (G_STRLOC ": Error setting layer combine blend string: %s",
error->message);
g_error_free (error);
}
}
/* Set the layer-combine constant so the texture is blended with the paint
* opacity when painted.
*/
actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (effect));
opacity = clutter_actor_get_paint_opacity (actor);
cogl_color_init_from_4ub (&color, opacity, opacity, opacity, opacity);
cogl_material_set_layer_combine_constant (material, 1, &color);
/* Draw the texture */
cogl_set_source (material);
cogl_vertex_buffer_draw_elements (priv->vbo,
COGL_VERTICES_MODE_TRIANGLES,
priv->indices,
0,
(priv->n_quads * 4) - 1,
0,
priv->n_quads * 6);
}
static gboolean
setup_framebuffers (StThemeNodeTransition *transition,
const ClutterActorBox *allocation)
{
StThemeNodeTransitionPrivate *priv = transition->priv;
CoglColor clear_color = { 0, 0, 0, 0 };
guint width, height;
/* template material to avoid unnecessary shader compilation */
static CoglHandle material_template = COGL_INVALID_HANDLE;
width = priv->offscreen_box.x2 - priv->offscreen_box.x1;
height = priv->offscreen_box.y2 - priv->offscreen_box.y1;
g_return_val_if_fail (width > 0, FALSE);
g_return_val_if_fail (height > 0, FALSE);
if (priv->old_texture)
cogl_handle_unref (priv->old_texture);
priv->old_texture = cogl_texture_new_with_size (width, height,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
if (priv->new_texture)
cogl_handle_unref (priv->new_texture);
priv->new_texture = cogl_texture_new_with_size (width, height,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
g_return_val_if_fail (priv->old_texture != COGL_INVALID_HANDLE, FALSE);
g_return_val_if_fail (priv->new_texture != COGL_INVALID_HANDLE, FALSE);
if (priv->old_offscreen)
cogl_handle_unref (priv->old_offscreen);
priv->old_offscreen = cogl_offscreen_new_to_texture (priv->old_texture);
if (priv->new_offscreen)
cogl_handle_unref (priv->new_offscreen);
priv->new_offscreen = cogl_offscreen_new_to_texture (priv->new_texture);
g_return_val_if_fail (priv->old_offscreen != COGL_INVALID_HANDLE, FALSE);
g_return_val_if_fail (priv->new_offscreen != COGL_INVALID_HANDLE, FALSE);
if (priv->material == NULL)
{
if (G_UNLIKELY (material_template == COGL_INVALID_HANDLE))
{
material_template = cogl_material_new ();
cogl_material_set_layer_combine (material_template, 0,
"RGBA = REPLACE (TEXTURE)",
NULL);
cogl_material_set_layer_combine (material_template, 1,
"RGBA = INTERPOLATE (PREVIOUS, "
"TEXTURE, "
"CONSTANT[A])",
NULL);
cogl_material_set_layer_combine (material_template, 2,
"RGBA = MODULATE (PREVIOUS, "
"PRIMARY)",
NULL);
}
priv->material = cogl_material_copy (material_template);
}
cogl_material_set_layer (priv->material, 0, priv->new_texture);
cogl_material_set_layer (priv->material, 1, priv->old_texture);
cogl_push_framebuffer (priv->old_offscreen);
cogl_clear (&clear_color, COGL_BUFFER_BIT_COLOR);
cogl_ortho (priv->offscreen_box.x1, priv->offscreen_box.x2,
priv->offscreen_box.y2, priv->offscreen_box.y1,
0.0, 1.0);
st_theme_node_paint (priv->old_theme_node, allocation, 255);
cogl_pop_framebuffer ();
cogl_push_framebuffer (priv->new_offscreen);
cogl_clear (&clear_color, COGL_BUFFER_BIT_COLOR);
cogl_ortho (priv->offscreen_box.x1, priv->offscreen_box.x2,
priv->offscreen_box.y2, priv->offscreen_box.y1,
0.0, 1.0);
st_theme_node_paint (priv->new_theme_node, allocation, 255);
cogl_pop_framebuffer ();
return TRUE;
}
int
main (int argc, char **argv)
{
ClutterActor *stage = stage;
ClutterActor *side_box;
ClutterActor *button_box;
ClutterActor *box;
ClutterAnimation *anim;
MashLightSet *light_set;
MxStyle *style;
GError *error = NULL;
Data data;
int i;
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
return 1;
style = mx_style_get_default ();
if (!mx_style_load_from_file (style, "lights.css",
&error))
{
g_warning ("Error setting style: %s", error->message);
g_clear_error (&error);
}
stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, 800, 600);
side_box = mx_table_new ();
clutter_actor_set_name (side_box, "side-box");
clutter_container_add_actor (CLUTTER_CONTAINER (stage), side_box);
clutter_actor_set_size (side_box, 300,
clutter_actor_get_height (stage));
clutter_actor_set_x (side_box,
clutter_actor_get_width (stage)
- clutter_actor_get_width (side_box));
button_box = mx_table_new ();
mx_table_add_actor (MX_TABLE (side_box), button_box, 0, 0);
data.notebook = mx_notebook_new ();
mx_table_add_actor (MX_TABLE (side_box), data.notebook, 1, 0);
data.model = mash_model_new_from_file (MASH_DATA_NONE,
argc > 1
? argv[1]
: "suzanne.ply",
&error);
if (data.model == NULL)
{
g_warning ("Error loading model: %s", error->message);
g_clear_error (&error);
return 1;
}
light_set = mash_light_set_new ();
box = clutter_box_new (clutter_fixed_layout_new ());
clutter_actor_set_size (data.model, 400, 400);
clutter_actor_set_position (data.model, 50.0, 100.0);
clutter_container_add_actor (CLUTTER_CONTAINER (box), data.model);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), box);
g_signal_connect_swapped (box, "paint",
G_CALLBACK (cogl_set_depth_test_enabled),
GINT_TO_POINTER (TRUE));
g_signal_connect_data (box, "paint",
G_CALLBACK (cogl_set_depth_test_enabled),
GINT_TO_POINTER (FALSE), NULL,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
data.light_marker_material = cogl_material_new ();
{
CoglColor color;
cogl_color_set_from_4ub (&color, 255, 0, 0, 255);
/* Use the layer state to ignore the vertex color from the shader so
that the light marker won't itself be lit */
cogl_material_set_layer_combine_constant (data.light_marker_material, 0,
&color);
cogl_material_set_layer_combine (data.light_marker_material, 0,
"RGBA = REPLACE(CONSTANT)",
NULL);
}
clutter_actor_set_rotation (data.model, CLUTTER_Y_AXIS,
0.0f,
clutter_actor_get_width (data.model) / 2.0f,
0.0f,
0.0f);
anim = clutter_actor_animate (data.model, CLUTTER_LINEAR, 3000,
"rotation-angle-y", 360.0f,
NULL);
clutter_animation_set_loop (anim, TRUE);
for (i = 0; i < N_LIGHTS; i++)
{
ClutterActor *table = mx_table_new ();
ClutterActor *button;
static ClutterActor *(* constructors[N_LIGHTS]) (void) =
{ mash_directional_light_new,
mash_point_light_new,
mash_spot_light_new };
static const ClutterColor black = { 0, 0, 0, 255 };
data.lights[i] = constructors[i] ();
button = mx_button_new_with_label (G_OBJECT_TYPE_NAME (data.lights[i]));
mx_table_add_actor (MX_TABLE (button_box), button, i, 0);
/* Default to disable all of the lights */
g_object_set (data.lights[i],
"ambient", &black,
"diffuse", &black,
"specular", &black,
NULL);
data.notebook_buttons[i] = button;
clutter_container_add_actor (CLUTTER_CONTAINER (box), data.lights[i]);
mash_light_set_add_light (light_set, MASH_LIGHT (data.lights[i]));
add_color_prop (table, "ambient light",
G_OBJECT (data.lights[i]), "ambient");
add_color_prop (table, "diffuse light",
G_OBJECT (data.lights[i]), "diffuse");
add_color_prop (table, "specular light",
G_OBJECT (data.lights[i]), "specular");
if (MASH_IS_POINT_LIGHT (data.lights[i]))
{
add_float_prop (table, "constant attenuation",
G_OBJECT (data.lights[i]), "constant-attenuation",
0.0f, 10.0f);
add_float_prop (table, "linear attenuation",
G_OBJECT (data.lights[i]), "linear-attenuation",
0.0f, 10.0f);
add_float_prop (table, "quadratic attenuation",
G_OBJECT (data.lights[i]), "quadratic-attenuation",
0.0f, 10.0f);
}
if (MASH_IS_SPOT_LIGHT (data.lights[i]))
{
clutter_actor_set_x (data.lights[i], 250);
add_float_prop (table, "spot cutoff",
G_OBJECT (data.lights[i]), "spot-cutoff",
0.0f, 90.0f);
add_float_prop (table, "spot exponent",
G_OBJECT (data.lights[i]), "spot-exponent",
0.0f, 128.0f);
}
clutter_container_add_actor (CLUTTER_CONTAINER (data.notebook), table);
data.notebook_pages[i] = table;
}
{
ClutterActor *button;
ClutterActor *table;
CoglHandle material;
float maximum_shininess;
material = mash_model_get_pipeline (MASH_MODEL (data.model));
/* Before version 1.3.10 on the 1.3 branch and 1.2.14 on the 1.2
branch Cogl would remap the shininess property to the range
[0,1]. After this it is just a value greater or equal to zero
(but GL imposes a limit of 128.0) */
if (clutter_check_version (1, 3, 9)
|| (clutter_major_version == 1
&& clutter_minor_version == 2
&& clutter_micro_version >= 13))
maximum_shininess = 128.0f;
else
maximum_shininess = 1.0f;
cogl_material_set_shininess (material, maximum_shininess);
button = mx_button_new_with_label ("Material");
data.notebook_buttons[i] = button;
mx_table_add_actor (MX_TABLE (button_box), button, i, 0);
table = mx_table_new ();
data.notebook_pages[i] = table;
clutter_container_add_actor (CLUTTER_CONTAINER (data.notebook), table);
add_material_color_prop (table, "emission", material,
cogl_material_set_emission,
cogl_material_get_emission);
add_material_color_prop (table, "diffuse", material,
cogl_material_set_diffuse,
cogl_material_get_diffuse);
add_material_color_prop (table, "ambient", material,
cogl_material_set_ambient,
cogl_material_get_ambient);
add_material_color_prop (table, "specular", material,
cogl_material_set_specular,
cogl_material_get_specular);
add_material_float_prop (table, "shininess", material,
0.0f, maximum_shininess,
cogl_material_set_shininess,
cogl_material_get_shininess);
}
mash_model_set_light_set (MASH_MODEL (data.model), light_set);
g_object_unref (light_set);
for (i = 0; i < N_PAGES; i++)
{
g_signal_connect (data.notebook_buttons[i], "notify::toggled",
G_CALLBACK (notebook_button_cb), &data);
mx_button_set_is_toggle (MX_BUTTON (data.notebook_buttons[i]), TRUE);
}
mx_button_set_toggled (MX_BUTTON (data.notebook_buttons[0]), TRUE);
g_signal_connect (stage, "motion-event",
G_CALLBACK (motion_event_cb),
&data);
clutter_actor_show (stage);
clutter_main ();
cogl_handle_unref (data.light_marker_material);
return 0;
}
static void
mnb_toolbar_background_paint_background (MxWidget *self,
ClutterActor *background,
const ClutterColor *color)
{
MnbToolbarBackgroundPrivate *priv = TOOLBAR_BACKGROUND_PRIVATE (self);
ClutterActor *actor = (ClutterActor *) self;
CoglHandle cogl_texture, cogl_material;
ClutterActorBox box = { 0, };
gfloat width, height;
gfloat tex_width, tex_height;
gfloat ex, ey;
gfloat tx1, ty1, tx2, ty2;
guint8 opacity;
/* Copied from MxWidget:
*
* Default implementation just draws the background
* colour and the image on top
*/
if (color && color->alpha != 0)
{
ClutterColor bg_color = *color;
bg_color.alpha = clutter_actor_get_paint_opacity (actor)
* bg_color.alpha
/ 255;
clutter_actor_get_allocation_box (actor, &box);
width = box.x2 - box.x1;
height = box.y2 - box.y1;
cogl_set_source_color4ub (bg_color.red,
bg_color.green,
bg_color.blue,
bg_color.alpha);
cogl_rectangle (0, 0, width, height);
}
/*
* Copied from MxTextureFrame
*/
/* no need to paint stuff if we don't have a texture */
if (G_UNLIKELY (priv->parent_texture == NULL))
return;
cogl_texture = clutter_texture_get_cogl_texture (priv->parent_texture);
if (cogl_texture == COGL_INVALID_HANDLE)
return;
cogl_material = clutter_texture_get_cogl_material (priv->parent_texture);
if (cogl_material == COGL_INVALID_HANDLE)
return;
tex_width = cogl_texture_get_width (cogl_texture);
tex_height = cogl_texture_get_height (cogl_texture);
clutter_actor_get_allocation_box (actor, &box);
width = box.x2 - box.x1;
height = box.y2 - box.y1;
opacity = clutter_actor_get_paint_opacity (actor);
/* Paint using the parent texture's material. It should already have
the cogl texture set as the first layer */
/* NB: for correct blending we need set a preumultiplied color here: */
cogl_material_set_color4ub (cogl_material,
opacity, opacity, opacity, opacity);
selector_texture = mnb_toolbar_get_selector_texture (priv->toolbar);
cogl_material_set_layer (cogl_material, 1, selector_texture);
cogl_material_set_layer_wrap_mode (cogl_material, 1,
COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE);
if (!cogl_material_set_layer_combine (cogl_material, 1,
"RGBA = MODULATE(PREVIOUS,TEXTURE)",
&error))
{
g_warning (G_STRLOC ": Error setting layer combine blend string: %s",
error->message);
g_error_free (error);
}
cogl_set_source (cogl_material);
/* simple stretch */
if (priv->left == 0 && priv->right == 0 && priv->top == 0
&& priv->bottom == 0)
{
float spot_width, spot_height;
float coords[8] = {
0, 0, 1, 1,
0, 0, 0, 0
};
mnb_toolbar_get_selector_allocation_box (priv->toolbar, &box);
spot_width = box.x2 - box.x1;
spot_height = box.y2 - box.y1;
coords[4] = -(box.x1 / width) * (width / spot_width);
coords[5] = -(box.y1 / height) * (height / spot_height);
coords[6] = width / spot_width - (box.x1 / width) * (width / spot_width);
coords[7] = height / spot_height - (box.y1 / height) * (height / spot_height);
cogl_rectangle_with_multitexture_coords (0, 0, width, height, coords, 8);
return;
}
tx1 = priv->left / tex_width;
tx2 = (tex_width - priv->right) / tex_width;
ty1 = priv->top / tex_height;
ty2 = (tex_height - priv->bottom) / tex_height;
ex = width - priv->right;
if (ex < priv->left)
ex = priv->left;
ey = height - priv->bottom;
if (ey < priv->top)
ey = priv->top;
{
GLfloat rectangles[] =
{
/* top left corner */
0, 0,
priv->left, priv->top,
0.0, 0.0,
tx1, ty1,
/* top middle */
priv->left, 0,
MAX (priv->left, ex), priv->top,
tx1, 0.0,
tx2, ty1,
/* top right */
ex, 0,
MAX (ex + priv->right, width), priv->top,
tx2, 0.0,
1.0, ty1,
/* mid left */
0, priv->top,
priv->left, ey,
0.0, ty1,
tx1, ty2,
/* center */
priv->left, priv->top,
ex, ey,
tx1, ty1,
tx2, ty2,
/* mid right */
ex, priv->top,
MAX (ex + priv->right, width), ey,
tx2, ty1,
1.0, ty2,
/* bottom left */
0, ey,
priv->left, MAX (ey + priv->bottom, height),
0.0, ty2,
tx1, 1.0,
/* bottom center */
priv->left, ey,
ex, MAX (ey + priv->bottom, height),
tx1, ty2,
tx2, 1.0,
/* bottom right */
ex, ey,
MAX (ex + priv->right, width), MAX (ey + priv->bottom, height),
tx2, ty2,
1.0, 1.0
};
cogl_rectangles_with_texture_coords (rectangles, 9);
}
}
static void
on_paint (ClutterActor *actor, TestState *state)
{
CoglHandle tex0, tex1;
CoglHandle material;
gboolean status;
GError *error = NULL;
float tex_coords[] = {
0, 0, 0.5, 0.5, /* tex0 */
0.5, 0.5, 1, 1 /* tex1 */
};
/* XXX:
* We haven't always had good luck with GL drivers implementing glReadPixels
* reliably and skipping the first two frames improves our chances... */
if (state->frame++ <= 2)
{
g_usleep (G_USEC_PER_SEC);
return;
}
tex0 = make_texture (0x00);
tex1 = make_texture (0x11);
material = cogl_material_new ();
/* An arbitrary color which should be replaced by the first texture layer */
cogl_material_set_color4ub (material, 0x80, 0x80, 0x80, 0x80);
cogl_material_set_blend (material, "RGBA = ADD (SRC_COLOR, 0)", NULL);
cogl_material_set_layer (material, 0, tex0);
cogl_material_set_layer_combine (material, 0,
"RGBA = REPLACE (TEXTURE)", NULL);
cogl_material_set_layer (material, 1, tex1);
status = cogl_material_set_layer_combine (material, 1,
"RGBA = ADD (PREVIOUS, TEXTURE)",
&error);
if (!status)
{
/* It's not strictly a test failure; you need a more capable GPU or
* driver to test this texture combine string. */
g_debug ("Failed to setup texture combine string "
"RGBA = ADD (PREVIOUS, TEXTURE): %s",
error->message);
}
cogl_set_source (material);
cogl_rectangle_with_multitexture_coords (0, 0, QUAD_WIDTH, QUAD_WIDTH,
tex_coords, 8);
cogl_handle_unref (material);
cogl_handle_unref (tex0);
cogl_handle_unref (tex1);
/* See what we got... */
assert_region_color (0, 0, QUAD_WIDTH, QUAD_WIDTH,
0x55, 0x55, 0x55, 0x55);
/* Comment this out if you want visual feedback for what this test paints */
#if 1
clutter_main_quit ();
#endif
}
static void
mnb_toolbar_shadow_paint (ClutterActor *self)
{
MnbToolbarShadowPrivate *priv = MNB_TOOLBAR_SHADOW (self)->priv;
CoglHandle cogl_texture = COGL_INVALID_HANDLE;
CoglHandle cogl_material = COGL_INVALID_HANDLE;
ClutterActorBox box = { 0, };
gfloat width, height;
gfloat tex_width, tex_height;
gfloat ex, ey;
gfloat tx1, ty1, tx2, ty2;
guint8 opacity;
/* no need to paint stuff if we don't have a texture */
if (G_UNLIKELY (priv->parent_texture == NULL))
return;
/* parent texture may have been hidden, so need to make sure it gets
* realized
*/
if (!CLUTTER_ACTOR_IS_REALIZED (priv->parent_texture))
clutter_actor_realize (CLUTTER_ACTOR (priv->parent_texture));
cogl_texture = clutter_texture_get_cogl_texture (priv->parent_texture);
if (cogl_texture == COGL_INVALID_HANDLE)
return;
cogl_material = clutter_texture_get_cogl_material (priv->parent_texture);
if (cogl_material == COGL_INVALID_HANDLE)
return;
tex_width = cogl_texture_get_width (cogl_texture);
tex_height = cogl_texture_get_height (cogl_texture);
clutter_actor_get_allocation_box (self, &box);
width = box.x2 - box.x1;
height = box.y2 - box.y1;
opacity = clutter_actor_get_paint_opacity (self);
/* Paint using the parent texture's material. It should already have
the cogl texture set as the first layer */
/* NB: for correct blending we need set a preumultiplied color here: */
cogl_material_set_color4ub (cogl_material,
opacity, opacity, opacity, opacity);
#if TOOLBAR_CUT_OUT
selector_texture = mnb_toolbar_get_selector_texture (priv->toolbar);
cogl_material_set_layer (cogl_material, 1, selector_texture);
cogl_material_set_layer_wrap_mode (cogl_material, 1,
COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE);
if (!cogl_material_set_layer_combine (cogl_material, 1,
"RGBA = MODULATE(PREVIOUS,TEXTURE)",
&error))
{
g_warning (G_STRLOC ": Error setting layer combine blend string: %s",
error->message);
g_error_free (error);
}
#endif
cogl_set_source (cogl_material);
/* simple stretch */
if (priv->left == 0 && priv->right == 0 && priv->top == 0
&& priv->bottom == 0)
{
#if TOOLBAR_CUT_OUT
float spot_width, spot_height;
float coords[8] = {
0, 0, 1, 1,
0, 0, 0, 0
};
mnb_toolbar_get_selector_allocation_box (priv->toolbar, &box);
spot_width = box.x2 - box.x1;
spot_height = box.y2 - box.y1;
coords[4] = -(box.x1 / width) * (width / spot_width);
coords[5] = -(box.y1 + SHADOW_CUT_OUT_OFFSET / height) * (height / spot_height);
coords[6] = width / spot_width - (box.x1 / width) * (width / spot_width);
coords[7] = height / spot_height -
(box.y1 + SHADOW_CUT_OUT_OFFSET / height) * (height / spot_height);
cogl_rectangle_with_multitexture_coords (0, 0, width, height, coords, 8);
#else
cogl_rectangle (0, 0, width, height);
#endif /* TOOLBAR_CUT_OUT */
return;
}
tx1 = priv->left / tex_width;
tx2 = (tex_width - priv->right) / tex_width;
ty1 = priv->top / tex_height;
ty2 = (tex_height - priv->bottom) / tex_height;
ex = width - priv->right;
if (ex < priv->left)
ex = priv->left;
ey = height - priv->bottom;
if (ey < priv->top)
ey = priv->top;
{
GLfloat rectangles[] =
{
/* top left corner */
0, 0,
priv->left, priv->top,
0.0, 0.0,
tx1, ty1,
/* top middle */
priv->left, 0,
MAX (priv->left, ex), priv->top,
tx1, 0.0,
tx2, ty1,
/* top right */
ex, 0,
MAX (ex + priv->right, width), priv->top,
tx2, 0.0,
1.0, ty1,
/* mid left */
0, priv->top,
priv->left, ey,
0.0, ty1,
tx1, ty2,
/* center */
priv->left, priv->top,
ex, ey,
tx1, ty1,
tx2, ty2,
/* mid right */
ex, priv->top,
MAX (ex + priv->right, width), ey,
tx2, ty1,
1.0, ty2,
/* bottom left */
0, ey,
priv->left, MAX (ey + priv->bottom, height),
0.0, ty2,
tx1, 1.0,
/* bottom center */
priv->left, ey,
ex, MAX (ey + priv->bottom, height),
tx1, ty2,
tx2, 1.0,
/* bottom right */
ex, ey,
MAX (ex + priv->right, width), MAX (ey + priv->bottom, height),
tx2, ty2,
1.0, 1.0
};
cogl_rectangles_with_texture_coords (rectangles, 9);
}
}
static void
on_paint (ClutterActor *actor, TestState *state)
{
CoglHandle tex0, tex1;
CoglHandle material;
gboolean status;
GError *error = NULL;
float tex_coords[] = {
0, 0, 0.5, 0.5, /* tex0 */
0.5, 0.5, 1, 1 /* tex1 */
};
tex0 = make_texture (0x00);
tex1 = make_texture (0x11);
material = cogl_material_new ();
/* An arbitrary color which should be replaced by the first texture layer */
cogl_material_set_color4ub (material, 0x80, 0x80, 0x80, 0x80);
cogl_material_set_blend (material, "RGBA = ADD (SRC_COLOR, 0)", NULL);
cogl_material_set_layer (material, 0, tex0);
cogl_material_set_layer_combine (material, 0,
"RGBA = REPLACE (TEXTURE)", NULL);
/* We'll use nearest filtering mode on the textures, otherwise the
edge of the quad can pull in texels from the neighbouring
quarters of the texture due to imprecision */
cogl_material_set_layer_filters (material, 0,
COGL_MATERIAL_FILTER_NEAREST,
COGL_MATERIAL_FILTER_NEAREST);
cogl_material_set_layer (material, 1, tex1);
cogl_material_set_layer_filters (material, 1,
COGL_MATERIAL_FILTER_NEAREST,
COGL_MATERIAL_FILTER_NEAREST);
status = cogl_material_set_layer_combine (material, 1,
"RGBA = ADD (PREVIOUS, TEXTURE)",
&error);
if (!status)
{
/* It's not strictly a test failure; you need a more capable GPU or
* driver to test this texture combine string. */
g_debug ("Failed to setup texture combine string "
"RGBA = ADD (PREVIOUS, TEXTURE): %s",
error->message);
}
cogl_set_source (material);
cogl_rectangle_with_multitexture_coords (0, 0, QUAD_WIDTH, QUAD_WIDTH,
tex_coords, 8);
cogl_handle_unref (material);
cogl_handle_unref (tex0);
cogl_handle_unref (tex1);
/* See what we got... */
assert_region_color (0, 0, QUAD_WIDTH, QUAD_WIDTH,
0x55, 0x55, 0x55, 0x55);
/* Comment this out if you want visual feedback for what this test paints */
#if 1
clutter_main_quit ();
#endif
}
static void
paint_legacy (TestState *state)
{
CoglHandle material = cogl_material_new ();
CoglTexture *tex;
CoglColor color;
CoglError *error = NULL;
CoglHandle shader, program;
cogl_color_init_from_4ub (&color, 0, 0, 0, 255);
cogl_clear (&color, COGL_BUFFER_BIT_COLOR);
/* Set the primary vertex color as red */
cogl_color_set_from_4ub (&color, 0xff, 0x00, 0x00, 0xff);
cogl_material_set_color (material, &color);
/* Override the vertex color in the texture environment with a
constant green color provided by a texture */
tex = create_dummy_texture ();
cogl_material_set_layer (material, 0, tex);
cogl_object_unref (tex);
if (!cogl_material_set_layer_combine (material, 0,
"RGBA=REPLACE(TEXTURE)",
&error))
{
g_warning ("Error setting layer combine: %s", error->message);
g_assert_not_reached ();
}
/* Set up a dummy vertex shader that does nothing but the usual
fixed function transform */
shader = cogl_create_shader (COGL_SHADER_TYPE_VERTEX);
cogl_shader_source (shader,
"void\n"
"main ()\n"
"{\n"
" cogl_position_out = "
"cogl_modelview_projection_matrix * "
"cogl_position_in;\n"
" cogl_color_out = cogl_color_in;\n"
" cogl_tex_coord_out[0] = cogl_tex_coord_in;\n"
"}\n");
cogl_shader_compile (shader);
if (!cogl_shader_is_compiled (shader))
{
char *log = cogl_shader_get_info_log (shader);
g_warning ("Shader compilation failed:\n%s", log);
g_free (log);
g_assert_not_reached ();
}
program = cogl_create_program ();
cogl_program_attach_shader (program, shader);
cogl_program_link (program);
cogl_handle_unref (shader);
/* Draw something using the material */
cogl_set_source (material);
cogl_rectangle (0, 0, 50, 50);
/* Draw it again using the program. It should look exactly the same */
cogl_program_use (program);
cogl_rectangle (50, 0, 100, 50);
cogl_program_use (COGL_INVALID_HANDLE);
cogl_handle_unref (material);
cogl_handle_unref (program);
}
