231 lines
8.5 KiB
C
231 lines
8.5 KiB
C
/*
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* Copyright 2023, Red Hat, Inc
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gskrendernodeattach.h"
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#include "gsk/gsk.h"
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#include "gsk/gskrendernodeprivate.h"
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#include "gdk/gdksurfaceprivate.h"
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#include "gdk/gdksubsurfaceprivate.h"
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static GskRenderNode *
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node_attach (const GskRenderNode *node,
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GdkSurface *surface,
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int *idx)
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{
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GskRenderNode *child, *res;
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switch (GSK_RENDER_NODE_TYPE (node))
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{
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case GSK_CAIRO_NODE:
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case GSK_COLOR_NODE:
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case GSK_LINEAR_GRADIENT_NODE:
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case GSK_REPEATING_LINEAR_GRADIENT_NODE:
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case GSK_RADIAL_GRADIENT_NODE:
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case GSK_REPEATING_RADIAL_GRADIENT_NODE:
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case GSK_CONIC_GRADIENT_NODE:
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case GSK_BORDER_NODE:
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case GSK_TEXTURE_NODE:
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case GSK_TEXTURE_SCALE_NODE:
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case GSK_INSET_SHADOW_NODE:
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case GSK_OUTSET_SHADOW_NODE:
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case GSK_TEXT_NODE:
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return gsk_render_node_ref ((GskRenderNode *)node);
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case GSK_TRANSFORM_NODE:
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child = node_attach (gsk_transform_node_get_child (node), surface, idx);
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res = gsk_transform_node_new (child, gsk_transform_node_get_transform (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_OPACITY_NODE:
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child = node_attach (gsk_opacity_node_get_child (node), surface, idx);
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res = gsk_opacity_node_new (child, gsk_opacity_node_get_opacity (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_COLOR_MATRIX_NODE:
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child = node_attach (gsk_color_matrix_node_get_child (node), surface, idx);
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res = gsk_color_matrix_node_new (child,
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gsk_color_matrix_node_get_color_matrix (node),
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gsk_color_matrix_node_get_color_offset (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_REPEAT_NODE:
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child = node_attach (gsk_repeat_node_get_child (node), surface, idx);
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res = gsk_repeat_node_new (&node->bounds, child, gsk_repeat_node_get_child_bounds (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_CONTAINER_NODE:
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{
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GskRenderNode **children = g_newa (GskRenderNode *, gsk_container_node_get_n_children (node));
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for (int i = 0; i < gsk_container_node_get_n_children (node); i++)
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children[i] = node_attach (gsk_container_node_get_child (node, i), surface, idx);
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res = gsk_container_node_new (children, gsk_container_node_get_n_children (node));
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for (int i = 0; i < gsk_container_node_get_n_children (node); i++)
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gsk_render_node_unref (children[i]);
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return res;
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}
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case GSK_CLIP_NODE:
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child = node_attach (gsk_clip_node_get_child (node), surface, idx);
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res = gsk_clip_node_new (child, gsk_clip_node_get_clip (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_ROUNDED_CLIP_NODE:
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child = node_attach (gsk_rounded_clip_node_get_child (node), surface, idx);
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res = gsk_rounded_clip_node_new (child, gsk_rounded_clip_node_get_clip (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_SHADOW_NODE:
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{
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GskShadow *shadows = g_newa (GskShadow, gsk_shadow_node_get_n_shadows (node));
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for (int i = 0; i < gsk_shadow_node_get_n_shadows (node); i++)
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shadows[i] = *gsk_shadow_node_get_shadow (node, i);
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child = node_attach (gsk_shadow_node_get_child (node), surface, idx);
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res = gsk_shadow_node_new (child, shadows, gsk_shadow_node_get_n_shadows (node));
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gsk_render_node_unref (child);
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return res;
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}
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case GSK_BLEND_NODE:
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{
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GskRenderNode *top, *bottom;
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bottom = node_attach (gsk_blend_node_get_bottom_child (node), surface, idx);
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top = node_attach (gsk_blend_node_get_top_child (node), surface, idx);
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res = gsk_blend_node_new (bottom, top, gsk_blend_node_get_blend_mode (node));
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gsk_render_node_unref (bottom);
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gsk_render_node_unref (top);
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return res;
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}
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case GSK_CROSS_FADE_NODE:
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{
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GskRenderNode *start, *end;
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start = node_attach (gsk_cross_fade_node_get_start_child (node), surface, idx);
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end = node_attach (gsk_cross_fade_node_get_end_child (node), surface, idx);
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res = gsk_cross_fade_node_new (start, end, gsk_cross_fade_node_get_progress (node));
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gsk_render_node_unref (start);
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gsk_render_node_unref (end);
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return res;
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}
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case GSK_BLUR_NODE:
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child = node_attach (gsk_blur_node_get_child (node), surface, idx);
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res = gsk_blur_node_new (child, gsk_blur_node_get_radius (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_DEBUG_NODE:
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child = node_attach (gsk_debug_node_get_child (node), surface, idx);
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res = gsk_debug_node_new (child, g_strdup (gsk_debug_node_get_message (node)));
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gsk_render_node_unref (child);
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return res;
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case GSK_GL_SHADER_NODE:
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{
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GskRenderNode **children;
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children = g_newa (GskRenderNode *, gsk_gl_shader_node_get_n_children (node));
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for (int i = 0; i < gsk_gl_shader_node_get_n_children (node); i++)
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children[i] = node_attach (gsk_gl_shader_node_get_child (node, i), surface, idx);
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res = gsk_gl_shader_node_new (gsk_gl_shader_node_get_shader (node),
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&node->bounds,
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gsk_gl_shader_node_get_args (node),
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children,
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gsk_gl_shader_node_get_n_children (node));
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for (int i = 0; i < gsk_gl_shader_node_get_n_children (node); i++)
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gsk_render_node_unref (children[i]);
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return res;
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}
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case GSK_MASK_NODE:
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{
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GskRenderNode *source, *mask;
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source = node_attach (gsk_mask_node_get_source (node), surface, idx);
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mask = node_attach (gsk_mask_node_get_mask (node), surface, idx);
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res = gsk_mask_node_new (source, mask, gsk_mask_node_get_mask_mode (node));
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gsk_render_node_unref (source);
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gsk_render_node_unref (mask);
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return res;
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}
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case GSK_FILL_NODE:
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child = node_attach (gsk_fill_node_get_child (node), surface, idx);
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res = gsk_fill_node_new (child,
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gsk_fill_node_get_path (node),
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gsk_fill_node_get_fill_rule (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_STROKE_NODE:
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child = node_attach (gsk_stroke_node_get_child (node), surface, idx);
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res = gsk_stroke_node_new (child,
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gsk_stroke_node_get_path (node),
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gsk_stroke_node_get_stroke (node));
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gsk_render_node_unref (child);
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return res;
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case GSK_SUBSURFACE_NODE:
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{
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GdkSubsurface *subsurface;
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g_assert (gsk_subsurface_node_get_subsurface (node) == NULL);
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if (*idx == -1)
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subsurface = gdk_surface_create_subsurface (surface);
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else
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{
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subsurface = gdk_surface_get_subsurface (surface, *idx);
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(*idx)++;
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}
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child = node_attach (gsk_subsurface_node_get_child (node), surface, idx);
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res = gsk_subsurface_node_new (child, subsurface);
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gsk_render_node_unref (child);
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return res;
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}
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case GSK_NOT_A_RENDER_NODE:
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default:
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g_assert_not_reached ();
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}
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}
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/* Find all the subsurface nodes in the given tree, and attach them
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* to a subsurface of the given surface. If the surface already has
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* subsurfaces, we assume that we are just reattaching, and that the
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* nodes are still in the same order. Otherwise, we create new
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* subsurfaces.
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*/
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GskRenderNode *
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gsk_render_node_attach (const GskRenderNode *node,
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GdkSurface *surface)
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{
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int idx;
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if (gdk_surface_get_n_subsurfaces (surface) > 0)
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idx = 0;
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else
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idx = -1;
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return node_attach (node, surface, &idx);
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}
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