static void add_material_color_prop (ClutterActor *table, const char *name, CoglHandle material, MaterialColorSetFunc set_func, MaterialColorGetFunc get_func) { ColorProp *prop = g_slice_new (ColorProp); ClutterColor value; CoglColor cogl_color; prop->prop_name = NULL; prop->material = cogl_handle_ref (material); prop->object = NULL; prop->set_func = set_func; prop->get_func = get_func; get_func (material, &cogl_color); value.red = cogl_color_get_red_byte (&cogl_color); value.green = cogl_color_get_green_byte (&cogl_color); value.blue = cogl_color_get_blue_byte (&cogl_color); value.alpha = cogl_color_get_alpha_byte (&cogl_color); add_color_prop_base (table, name, prop, &value); }
void _cogl_pango_display_list_render (CoglFramebuffer *fb, CoglPangoDisplayList *dl, const CoglColor *color) { GSList *l; for (l = dl->nodes; l; l = l->next) { CoglPangoDisplayListNode *node = l->data; CoglColor draw_color; if (node->pipeline == NULL) { if (node->type == COGL_PANGO_DISPLAY_LIST_TEXTURE) node->pipeline = _cogl_pango_pipeline_cache_get (dl->pipeline_cache, node->d.texture.texture); else node->pipeline = _cogl_pango_pipeline_cache_get (dl->pipeline_cache, NULL); } if (node->color_override) /* Use the override color but preserve the alpha from the draw color */ cogl_color_init_from_4ub (&draw_color, cogl_color_get_red_byte (&node->color), cogl_color_get_green_byte (&node->color), cogl_color_get_blue_byte (&node->color), cogl_color_get_alpha_byte (color)); else draw_color = *color; cogl_color_premultiply (&draw_color); cogl_pipeline_set_color (node->pipeline, &draw_color); switch (node->type) { case COGL_PANGO_DISPLAY_LIST_TEXTURE: _cogl_framebuffer_draw_display_list_texture (fb, node->pipeline, node); break; case COGL_PANGO_DISPLAY_LIST_RECTANGLE: cogl_framebuffer_draw_rectangle (fb, node->pipeline, node->d.rectangle.x_1, node->d.rectangle.y_1, node->d.rectangle.x_2, node->d.rectangle.y_2); break; case COGL_PANGO_DISPLAY_LIST_TRAPEZOID: cogl_primitive_draw (node->d.trapezoid.primitive, fb, node->pipeline); break; } } }
static void color_prop_value_cb (MxSlider *slider, GParamSpec *pspec, ColorPropComp *prop_comp) { float value = mx_slider_get_value (slider) * 255.0f + 0.5f; ColorProp *prop = prop_comp->prop; if (prop->object) { ClutterColor *color; g_object_get (prop->object, prop->prop_name, &color, NULL); ((guint8 *) color)[prop_comp->comp_num] = value; clutter_rectangle_set_color (CLUTTER_RECTANGLE (prop->rect), color); g_object_set (prop->object, prop->prop_name, color, NULL); clutter_color_free (color); } else { ClutterColor color; CoglColor cogl_color; prop->get_func (prop->material, &cogl_color); color.red = cogl_color_get_red_byte (&cogl_color); color.green = cogl_color_get_green_byte (&cogl_color); color.blue = cogl_color_get_blue_byte (&cogl_color); color.alpha = 255; ((guint8 *) &color)[prop_comp->comp_num] = value; cogl_color_set_from_4ub (&cogl_color, color.red, color.green, color.blue, 255); clutter_rectangle_set_color (CLUTTER_RECTANGLE (prop->rect), &color); prop->set_func (prop->material, &cogl_color); } update_prop_comp_label (prop_comp, value); }
/** * meta_create_color_texture_4ub: * @red: * @green: * @blue: * @alpha: * @flags: Optional flags for the texture, or %COGL_TEXTURE_NONE; * %COGL_TEXTURE_NO_SLICING is useful if the texture will be * repeated to create a constant color fill, since hardware * repeat can't be used for a sliced texture. * * Creates a texture that is a single pixel with the specified * unpremultiplied color components. * * Return value: (transfer full): a newly created Cogl texture */ CoglHandle meta_create_color_texture_4ub (guint8 red, guint8 green, guint8 blue, guint8 alpha, CoglTextureFlags flags) { CoglColor color; guint8 pixel[4]; cogl_color_set_from_4ub (&color, red, green, blue, alpha); cogl_color_premultiply (&color); pixel[0] = cogl_color_get_red_byte (&color); pixel[1] = cogl_color_get_green_byte (&color); pixel[2] = cogl_color_get_blue_byte (&color); pixel[3] = cogl_color_get_alpha_byte (&color); return cogl_texture_new_from_data (1, 1, flags, COGL_PIXEL_FORMAT_RGBA_8888_PRE, COGL_PIXEL_FORMAT_ANY, 4, pixel); }
static void clutter_deform_effect_paint_target (ClutterOffscreenEffect *effect) { ClutterDeformEffect *self= CLUTTER_DEFORM_EFFECT (effect); ClutterDeformEffectPrivate *priv = self->priv; CoglHandle material; CoglPipeline *pipeline; CoglDepthState depth_state; CoglFramebuffer *fb = cogl_get_draw_framebuffer (); if (priv->is_dirty) { ClutterRect rect; gboolean mapped_buffer; CoglVertexP3T2C4 *verts; ClutterActor *actor; gfloat width, height; guint opacity; gint i, j; actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (effect)); opacity = clutter_actor_get_paint_opacity (actor); /* if we don't have a target size, fall back to the actor's * allocation, though wrong it might be */ if (clutter_offscreen_effect_get_target_rect (effect, &rect)) { width = clutter_rect_get_width (&rect); height = clutter_rect_get_height (&rect); } else clutter_actor_get_size (actor, &width, &height); /* XXX ideally, the sub-classes should tell us what they * changed in the texture vertices; we then would be able to * avoid resubmitting the same data, if it did not change. for * the time being, we resubmit everything */ verts = cogl_buffer_map (COGL_BUFFER (priv->buffer), COGL_BUFFER_ACCESS_WRITE, COGL_BUFFER_MAP_HINT_DISCARD); /* If the map failed then we'll resort to allocating a temporary buffer */ if (verts == NULL) { mapped_buffer = FALSE; verts = g_malloc (sizeof (*verts) * priv->n_vertices); } else mapped_buffer = TRUE; for (i = 0; i < priv->y_tiles + 1; i++) { for (j = 0; j < priv->x_tiles + 1; j++) { CoglVertexP3T2C4 *vertex_out; CoglTextureVertex vertex; /* CoglTextureVertex isn't an ideal structure to use for this because it contains a CoglColor. The internal layout of CoglColor is mean to be private so Clutter can not pass a pointer to it as a vertex attribute. Also it contains padding so we end up storing more data in the vertex buffer than we need to. Instead we let the application modify a dummy vertex and then copy the details back out to a more well-defined struct */ vertex.tx = (float) j / priv->x_tiles; vertex.ty = (float) i / priv->y_tiles; vertex.x = width * vertex.tx; vertex.y = height * vertex.ty; vertex.z = 0.0f; cogl_color_init_from_4ub (&vertex.color, 255, 255, 255, opacity); clutter_deform_effect_deform_vertex (self, width, height, &vertex); vertex_out = verts + i * (priv->x_tiles + 1) + j; vertex_out->x = vertex.x; vertex_out->y = vertex.y; vertex_out->z = vertex.z; vertex_out->s = vertex.tx; vertex_out->t = vertex.ty; vertex_out->r = cogl_color_get_red_byte (&vertex.color); vertex_out->g = cogl_color_get_green_byte (&vertex.color); vertex_out->b = cogl_color_get_blue_byte (&vertex.color); vertex_out->a = cogl_color_get_alpha_byte (&vertex.color); } } if (mapped_buffer) cogl_buffer_unmap (COGL_BUFFER (priv->buffer)); else { cogl_buffer_set_data (COGL_BUFFER (priv->buffer), 0, /* offset */ verts, sizeof (*verts) * priv->n_vertices); g_free (verts); } priv->is_dirty = FALSE; } material = clutter_offscreen_effect_get_target (effect); pipeline = COGL_PIPELINE (material); /* enable depth testing */ cogl_depth_state_init (&depth_state); cogl_depth_state_set_test_enabled (&depth_state, TRUE); cogl_pipeline_set_depth_state (pipeline, &depth_state, NULL); /* enable backface culling if we have a back material */ if (priv->back_pipeline != NULL) cogl_pipeline_set_cull_face_mode (pipeline, COGL_PIPELINE_CULL_FACE_MODE_BACK); /* draw the front */ if (material != NULL) cogl_framebuffer_draw_primitive (fb, pipeline, priv->primitive); /* draw the back */ if (priv->back_pipeline != NULL) { CoglPipeline *back_pipeline; /* We probably shouldn't be modifying the user's material so instead we make a temporary copy */ back_pipeline = cogl_pipeline_copy (priv->back_pipeline); cogl_pipeline_set_depth_state (back_pipeline, &depth_state, NULL); cogl_pipeline_set_cull_face_mode (back_pipeline, COGL_PIPELINE_CULL_FACE_MODE_FRONT); cogl_framebuffer_draw_primitive (fb, back_pipeline, priv->primitive); cogl_object_unref (back_pipeline); } if (G_UNLIKELY (priv->lines_primitive != NULL)) { CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ()); CoglPipeline *lines_pipeline = cogl_pipeline_new (ctx); cogl_pipeline_set_color4f (lines_pipeline, 1.0, 0, 0, 1.0); cogl_framebuffer_draw_primitive (fb, lines_pipeline, priv->lines_primitive); cogl_object_unref (lines_pipeline); } }
void _cogl_pango_display_list_render (CoglPangoDisplayList *dl, const CoglColor *color) { GSList *l; for (l = dl->nodes; l; l = l->next) { CoglPangoDisplayListNode *node = l->data; CoglColor draw_color; if (node->pipeline == NULL) { if (node->type == COGL_PANGO_DISPLAY_LIST_TEXTURE) node->pipeline = _cogl_pango_pipeline_cache_get (dl->pipeline_cache, node->d.texture.texture); else node->pipeline = _cogl_pango_pipeline_cache_get (dl->pipeline_cache, NULL); } if (node->color_override) /* Use the override color but preserve the alpha from the draw color */ cogl_color_init_from_4ub (&draw_color, cogl_color_get_red_byte (&node->color), cogl_color_get_green_byte (&node->color), cogl_color_get_blue_byte (&node->color), cogl_color_get_alpha_byte (color)); else draw_color = *color; cogl_color_premultiply (&draw_color); cogl_pipeline_set_color (node->pipeline, &draw_color); cogl_push_source (node->pipeline); switch (node->type) { case COGL_PANGO_DISPLAY_LIST_TEXTURE: _cogl_pango_display_list_render_texture (node); break; case COGL_PANGO_DISPLAY_LIST_RECTANGLE: cogl_rectangle (node->d.rectangle.x_1, node->d.rectangle.y_1, node->d.rectangle.x_2, node->d.rectangle.y_2); break; case COGL_PANGO_DISPLAY_LIST_TRAPEZOID: { float points[8]; CoglPath *path; points[0] = node->d.trapezoid.x_11; points[1] = node->d.trapezoid.y_1; points[2] = node->d.trapezoid.x_12; points[3] = node->d.trapezoid.y_2; points[4] = node->d.trapezoid.x_22; points[5] = node->d.trapezoid.y_2; points[6] = node->d.trapezoid.x_21; points[7] = node->d.trapezoid.y_1; path = cogl_path_new (); cogl_path_polygon (path, points, 4); cogl_path_fill (path); cogl_object_unref (path); } break; } cogl_pop_source (); } }
static CoglBool dump_pipeline_cb (CoglNode *node, void *user_data) { CoglPipeline *pipeline = COGL_PIPELINE (node); PrintDebugState *state = user_data; int pipeline_id = *state->node_id_ptr; PrintDebugState state_out; GString *changes_label; CoglBool changes = FALSE; CoglBool layers = FALSE; if (state->parent_id >= 0) g_string_append_printf (state->graph, "%*spipeline%d -> pipeline%d;\n", state->indent, "", state->parent_id, pipeline_id); g_string_append_printf (state->graph, "%*spipeline%d [label=\"pipeline=0x%p\\n" "ref count=%d\\n" "breadcrumb=\\\"%s\\\"\" color=\"red\"];\n", state->indent, "", pipeline_id, pipeline, COGL_OBJECT (pipeline)->ref_count, pipeline->has_static_breadcrumb ? #ifdef COGL_DEBUG_ENABLED pipeline->static_breadcrumb : "NULL" #else "NULL" #endif ); changes_label = g_string_new (""); g_string_append_printf (changes_label, "%*spipeline%d -> pipeline_state%d [weight=100];\n" "%*spipeline_state%d [shape=box label=\"", state->indent, "", pipeline_id, pipeline_id, state->indent, "", pipeline_id); if (pipeline->differences & COGL_PIPELINE_STATE_COLOR) { changes = TRUE; g_string_append_printf (changes_label, "\\lcolor=0x%02X%02X%02X%02X\\n", cogl_color_get_red_byte (&pipeline->color), cogl_color_get_green_byte (&pipeline->color), cogl_color_get_blue_byte (&pipeline->color), cogl_color_get_alpha_byte (&pipeline->color)); } if (pipeline->differences & COGL_PIPELINE_STATE_BLEND) { const char *blend_enable_name; changes = TRUE; switch (pipeline->blend_enable) { case COGL_PIPELINE_BLEND_ENABLE_AUTOMATIC: blend_enable_name = "AUTO"; break; case COGL_PIPELINE_BLEND_ENABLE_ENABLED: blend_enable_name = "ENABLED"; break; case COGL_PIPELINE_BLEND_ENABLE_DISABLED: blend_enable_name = "DISABLED"; break; default: blend_enable_name = "UNKNOWN"; } g_string_append_printf (changes_label, "\\lblend=%s\\n", blend_enable_name); } if (pipeline->differences & COGL_PIPELINE_STATE_LAYERS) { changes = TRUE; layers = TRUE; g_string_append_printf (changes_label, "\\ln_layers=%d\\n", pipeline->n_layers); } if (changes) { g_string_append_printf (changes_label, "\"];\n"); g_string_append (state->graph, changes_label->str); g_string_free (changes_label, TRUE); } if (layers) { g_list_foreach (pipeline->layer_differences, (GFunc)dump_layer_ref_cb, state); } state_out.parent_id = pipeline_id; state_out.node_id_ptr = state->node_id_ptr; (*state_out.node_id_ptr)++; state_out.graph = state->graph; state_out.indent = state->indent + 2; _cogl_pipeline_node_foreach_child (COGL_NODE (pipeline), dump_pipeline_cb, &state_out); return TRUE; }
void cogl_polygon (const CoglTextureVertex *vertices, unsigned int n_vertices, CoglBool use_color) { CoglPipeline *pipeline; ValidateState validate_state; int n_layers; int n_attributes; CoglAttribute **attributes; int i; unsigned int stride; size_t stride_bytes; CoglAttributeBuffer *attribute_buffer; float *v; _COGL_GET_CONTEXT (ctx, NO_RETVAL); pipeline = cogl_get_source (); validate_state.original_pipeline = pipeline; validate_state.pipeline = pipeline; cogl_pipeline_foreach_layer (pipeline, _cogl_polygon_validate_layer_cb, &validate_state); pipeline = validate_state.pipeline; n_layers = cogl_pipeline_get_n_layers (pipeline); n_attributes = 1 + n_layers + (use_color ? 1 : 0); attributes = g_alloca (sizeof (CoglAttribute *) * n_attributes); /* Our data is arranged like: * [X, Y, Z, TX0, TY0, TX1, TY1..., R, G, B, A,...] */ stride = 3 + (2 * n_layers) + (use_color ? 1 : 0); stride_bytes = stride * sizeof (float); /* Make sure there is enough space in the global vertex array. This * is used so we can render the polygon with a single call to OpenGL * but still support any number of vertices */ g_array_set_size (ctx->polygon_vertices, n_vertices * stride); attribute_buffer = cogl_attribute_buffer_new (ctx, n_vertices * stride_bytes, NULL); attributes[0] = cogl_attribute_new (attribute_buffer, "cogl_position_in", stride_bytes, 0, 3, COGL_ATTRIBUTE_TYPE_FLOAT); for (i = 0; i < n_layers; i++) { static const char *names[] = { "cogl_tex_coord0_in", "cogl_tex_coord1_in", "cogl_tex_coord2_in", "cogl_tex_coord3_in", "cogl_tex_coord4_in", "cogl_tex_coord5_in", "cogl_tex_coord6_in", "cogl_tex_coord7_in" }; char *allocated_name = NULL; const char *name; if (i < 8) name = names[i]; else name = allocated_name = g_strdup_printf ("cogl_tex_coord%d_in", i); attributes[i + 1] = cogl_attribute_new (attribute_buffer, name, stride_bytes, /* NB: [X,Y,Z,TX,TY...,R,G,B,A,...] */ 12 + 8 * i, 2, COGL_ATTRIBUTE_TYPE_FLOAT); g_free (allocated_name); } if (use_color) { attributes[n_attributes - 1] = cogl_attribute_new (attribute_buffer, "cogl_color_in", stride_bytes, /* NB: [X,Y,Z,TX,TY...,R,G,B,A,...] */ 12 + 8 * n_layers, 4, COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE); } /* Convert the vertices into an array of float vertex attributes */ v = (float *)ctx->polygon_vertices->data; for (i = 0; i < n_vertices; i++) { AppendTexCoordsState append_tex_coords_state; uint8_t *c; /* NB: [X,Y,Z,TX,TY...,R,G,B,A,...] */ v[0] = vertices[i].x; v[1] = vertices[i].y; v[2] = vertices[i].z; append_tex_coords_state.vertices_in = vertices; append_tex_coords_state.vertex = i; append_tex_coords_state.layer = 0; append_tex_coords_state.vertices_out = v; cogl_pipeline_foreach_layer (pipeline, append_tex_coord_attributes_cb, &append_tex_coords_state); if (use_color) { /* NB: [X,Y,Z,TX,TY...,R,G,B,A,...] */ c = (uint8_t *) (v + 3 + 2 * n_layers); c[0] = cogl_color_get_red_byte (&vertices[i].color); c[1] = cogl_color_get_green_byte (&vertices[i].color); c[2] = cogl_color_get_blue_byte (&vertices[i].color); c[3] = cogl_color_get_alpha_byte (&vertices[i].color); } v += stride; } v = (float *)ctx->polygon_vertices->data; cogl_buffer_set_data (COGL_BUFFER (attribute_buffer), 0, v, ctx->polygon_vertices->len * sizeof (float)); /* XXX: although this may seem redundant, we need to do this since * cogl_polygon() can be used with legacy state and its the source stack * which track whether legacy state is enabled. * * (We only have a CoglDrawFlag to disable legacy state not one * to enable it) */ cogl_push_source (pipeline); _cogl_framebuffer_draw_attributes (cogl_get_draw_framebuffer (), pipeline, COGL_VERTICES_MODE_TRIANGLE_FAN, 0, n_vertices, attributes, n_attributes, 0 /* no draw flags */); cogl_pop_source (); if (pipeline != validate_state.original_pipeline) cogl_object_unref (pipeline); cogl_object_unref (attribute_buffer); for (i = 0; i < n_attributes; i++) cogl_object_unref (attributes[i]); }