453 lines
15 KiB
C
453 lines
15 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "vg_common.h"
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#include <Evas.h>
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#ifdef BUILD_VG_LOADER_JSON
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#include <rlottie_capi.h>
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//FIXME: This enum add temporarily to help understanding of additional code
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//related to masking in prepare_mask.
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//This needs to be formally declared through the eo class.
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typedef enum _EFL_CANVAS_VG_NODE_BLEND_TYPE
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{
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EFL_CANVAS_VG_NODE_BLEND_TYPE_NONE = 0,
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EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA,
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EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA_INV,
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EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_ADD,
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EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_SUBSTRACT,
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EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_INTERSECT,
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EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_DIFFERENCE
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}EFL_CANVAS_VG_NODE_BLEND_TYPE;
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//
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static char*
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_get_key_val(void *key)
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{
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static char buf[30];
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snprintf(buf, sizeof(buf), "%ld", (size_t) key);
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return buf;
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}
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static void
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_construct_drawable_nodes(Efl_Canvas_Vg_Container *parent, const LOTLayerNode *layer, int depth EINA_UNUSED)
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{
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if (!parent) return;
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for (unsigned int i = 0; i < layer->mNodeList.size; i++)
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{
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LOTNode *node = layer->mNodeList.ptr[i];
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if (!node) continue;
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//Skip Invisible Stroke?
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if (node->mStroke.enable && node->mStroke.width == 0)
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{
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char *key = _get_key_val(node);
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Efl_Canvas_Vg_Shape *shape = efl_key_data_get(parent, key);
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if (shape) efl_gfx_entity_visible_set(shape, EINA_FALSE);
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continue;
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}
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const float *data = node->mPath.ptPtr;
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if (!data) continue;
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char *key = _get_key_val(node);
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Efl_Canvas_Vg_Shape *shape = efl_key_data_get(parent, key);
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if (!shape)
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{
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shape = efl_add(EFL_CANVAS_VG_SHAPE_CLASS, parent);
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efl_key_data_set(parent, key, shape);
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}
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else
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efl_gfx_path_reset(shape);
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efl_gfx_entity_visible_set(shape, EINA_TRUE);
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#if DEBUG
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for (int i = 0; i < depth; i++) printf(" ");
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printf("%s (%p)\n", efl_class_name_get(efl_class_get(shape)), shape);
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#endif
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//0: Path
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efl_gfx_path_reserve(shape, node->mPath.elmCount, node->mPath.ptCount);
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for (int i = 0; i < node->mPath.elmCount; i++)
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{
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switch (node->mPath.elmPtr[i])
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{
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case 0:
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efl_gfx_path_append_move_to(shape, data[0], data[1]);
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data += 2;
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break;
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case 1:
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efl_gfx_path_append_line_to(shape, data[0], data[1]);
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data += 2;
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break;
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case 2:
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efl_gfx_path_append_cubic_to(shape, data[0], data[1], data[2], data[3], data[4], data[5]);
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data += 6;
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break;
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case 3:
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efl_gfx_path_append_close(shape);
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break;
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default:
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ERR("No reserved path type = %d", node->mPath.elmPtr[i]);
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}
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}
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//1: Stroke
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if (node->mStroke.enable)
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{
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//Stroke Width
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efl_gfx_shape_stroke_width_set(shape, node->mStroke.width);
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//Stroke Cap
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Efl_Gfx_Cap cap;
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switch (node->mStroke.cap)
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{
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case CapFlat: cap = EFL_GFX_CAP_BUTT; break;
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case CapSquare: cap = EFL_GFX_CAP_SQUARE; break;
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case CapRound: cap = EFL_GFX_CAP_ROUND; break;
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default: cap = EFL_GFX_CAP_BUTT; break;
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}
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efl_gfx_shape_stroke_cap_set(shape, cap);
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//Stroke Join
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Efl_Gfx_Join join;
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switch (node->mStroke.join)
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{
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case JoinMiter: join = EFL_GFX_JOIN_MITER; break;
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case JoinBevel: join = EFL_GFX_JOIN_BEVEL; break;
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case JoinRound: join = EFL_GFX_JOIN_ROUND; break;
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default: join = EFL_GFX_JOIN_MITER; break;
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}
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efl_gfx_shape_stroke_join_set(shape, join);
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//Stroke Dash
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if (node->mStroke.dashArraySize > 0)
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{
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int size = (node->mStroke.dashArraySize / 2);
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Efl_Gfx_Dash *dash = malloc(sizeof(Efl_Gfx_Dash) * size);
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if (dash)
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{
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for (int i = 0; i <= size; i+=2)
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{
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dash[i].length = node->mStroke.dashArray[i];
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dash[i].gap = node->mStroke.dashArray[i + 1];
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}
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efl_gfx_shape_stroke_dash_set(shape, dash, size);
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free(dash);
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}
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}
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}
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//2: Fill Method
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switch (node->mBrushType)
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{
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case BrushSolid:
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{
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float pa = ((float)node->mColor.a) / 255;
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int r = (int)(((float) node->mColor.r) * pa);
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int g = (int)(((float) node->mColor.g) * pa);
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int b = (int)(((float) node->mColor.b) * pa);
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int a = node->mColor.a;
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if (node->mStroke.enable)
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efl_gfx_shape_stroke_color_set(shape, r, g, b, a);
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else
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efl_gfx_color_set(shape, r, g, b, a);
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}
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break;
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case BrushGradient:
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{
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Efl_Canvas_Vg_Gradient* grad = NULL;
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if (node->mGradient.type == GradientLinear)
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{
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grad = efl_add(EFL_CANVAS_VG_GRADIENT_LINEAR_CLASS, parent);
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efl_gfx_gradient_linear_start_set(grad, node->mGradient.start.x, node->mGradient.start.y);
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efl_gfx_gradient_linear_end_set(grad, node->mGradient.end.x, node->mGradient.end.y);
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}
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else if (node->mGradient.type == GradientRadial)
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{
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grad = efl_add(EFL_CANVAS_VG_GRADIENT_RADIAL_CLASS, parent);
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efl_gfx_gradient_radial_center_set(grad, node->mGradient.center.x, node->mGradient.center.y);
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efl_gfx_gradient_radial_focal_set(grad, node->mGradient.focal.x, node->mGradient.focal.y);
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efl_gfx_gradient_radial_radius_set(grad, node->mGradient.cradius);
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}
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else
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ERR("No reserved gradient type = %d", node->mGradient.type);
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if (grad)
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{
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//Gradient Stop
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Efl_Gfx_Gradient_Stop* stops = malloc(sizeof(Efl_Gfx_Gradient_Stop) * node->mGradient.stopCount);
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if (stops)
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{
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for (unsigned int i = 0; i < node->mGradient.stopCount; i++)
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{
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stops[i].offset = node->mGradient.stopPtr[i].pos;
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float pa = ((float)node->mGradient.stopPtr[i].a) / 255;
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stops[i].r = (int)(((float)node->mGradient.stopPtr[i].r) * pa);
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stops[i].g = (int)(((float)node->mGradient.stopPtr[i].g) * pa);
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stops[i].b = (int)(((float)node->mGradient.stopPtr[i].b) * pa);
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stops[i].a = node->mGradient.stopPtr[i].a;
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}
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efl_gfx_gradient_stop_set(grad, stops, node->mGradient.stopCount);
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free(stops);
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}
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if (node->mStroke.enable)
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efl_canvas_vg_shape_stroke_fill_set(shape, grad);
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else
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efl_canvas_vg_shape_fill_set(shape, grad);
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}
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}
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break;
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default:
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ERR("No reserved brush type = %d", node->mBrushType);
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}
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//3: Fill Rule
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if (node->mFillRule == FillEvenOdd)
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efl_gfx_shape_fill_rule_set(shape, EFL_GFX_FILL_RULE_ODD_EVEN);
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else if (node->mFillRule == FillWinding)
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efl_gfx_shape_fill_rule_set(shape, EFL_GFX_FILL_RULE_WINDING);
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}
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}
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static void
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_construct_mask_nodes(Efl_Canvas_Vg_Container *parent, LOTMask *mask, int depth EINA_UNUSED)
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{
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const float *data = mask->mPath.ptPtr;
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if (!data) return;
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char *key = _get_key_val(mask);
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Efl_Canvas_Vg_Shape *shape = efl_key_data_get(parent, key);
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if (!shape)
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{
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shape = efl_add(EFL_CANVAS_VG_SHAPE_CLASS, parent);
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efl_key_data_set(parent, key, shape);
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}
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else
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efl_gfx_path_reset(shape);
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efl_gfx_entity_visible_set(shape, EINA_TRUE);
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efl_gfx_path_reserve(shape, mask->mPath.elmCount, mask->mPath.ptCount);
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for (int i = 0; i < mask->mPath.elmCount; i++)
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{
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switch (mask->mPath.elmPtr[i])
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{
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case 0:
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efl_gfx_path_append_move_to(shape, data[0], data[1]);
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data += 2;
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break;
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case 1:
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efl_gfx_path_append_line_to(shape, data[0], data[1]);
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data += 2;
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break;
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case 2:
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efl_gfx_path_append_cubic_to(shape, data[0], data[1], data[2], data[3], data[4], data[5]);
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data += 6;
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break;
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case 3:
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efl_gfx_path_append_close(shape);
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break;
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default:
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ERR("No reserved path type = %d", mask->mPath.elmPtr[i]);
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break;
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}
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}
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//White color and alpha setting
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float pa = ((float)mask->mAlpha) / 255;
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int r = (int) (255.0f * pa);
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int g = (int) (255.0f * pa);
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int b = (int) (255.0f * pa);
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int a = mask->mAlpha;
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efl_gfx_color_set(shape, r, g, b, a);
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}
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static void
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_construct_masks(Efl_Canvas_Vg_Container *mtarget, LOTMask *masks, unsigned int mask_cnt, int depth)
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{
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char *key = NULL;
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Efl_Canvas_Vg_Container *msource = NULL;
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key = _get_key_val(mtarget);
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msource = efl_key_data_get(mtarget, key);
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if (!msource)
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{
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msource = efl_add(EFL_CANVAS_VG_CONTAINER_CLASS, mtarget);
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efl_key_data_set(mtarget, key, msource);
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}
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//FIXME : EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA option is temporary
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//Currently matte alpha implemtnes is same the mask intersect impletment.
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//It has been implemented as a multiplication calculation.
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efl_canvas_vg_node_mask_set(mtarget, msource, EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA);
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mtarget = msource;
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//Make mask layers
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for (unsigned int i = 0; i < mask_cnt; i++)
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{
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LOTMask *mask = &masks[i];;
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key = _get_key_val(mask);
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msource = efl_key_data_get(mtarget, key);
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if (!msource)
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{
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msource = efl_add(EFL_CANVAS_VG_CONTAINER_CLASS, mtarget);
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efl_key_data_set(mtarget, key, msource);
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}
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_construct_mask_nodes(msource, mask, depth + 1);
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EFL_CANVAS_VG_NODE_BLEND_TYPE mask_mode;
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switch (mask->mMode)
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{
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case MaskSubstract:
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mask_mode = EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_SUBSTRACT;
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break;
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case MaskIntersect:
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mask_mode = EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_INTERSECT;
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break;
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case MaskDifference:
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mask_mode = EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_DIFFERENCE;
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break;
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case MaskAdd:
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default:
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mask_mode = EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_ADD;
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break;
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}
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efl_canvas_vg_node_mask_set(mtarget, msource, mask_mode);
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mtarget = msource;
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}
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}
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static void
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_update_vg_tree(Efl_Canvas_Vg_Container *root, const LOTLayerNode *layer, int depth EINA_UNUSED)
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{
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if (!layer->mVisible)
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{
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efl_gfx_entity_visible_set(root, EINA_FALSE);
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return;
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}
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efl_gfx_entity_visible_set(root, EINA_TRUE);
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Efl_Canvas_Vg_Container *ptree = NULL;
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//Note: We assume that if matte is valid, next layer must be a matte source.
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int matte_mode = 0;
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Efl_Canvas_Vg_Container *mtarget = NULL;
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LOTLayerNode *mlayer = NULL;
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//Is this layer a container layer?
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for (unsigned int i = 0; i < layer->mLayerList.size; i++)
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{
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LOTLayerNode *clayer = layer->mLayerList.ptr[i];
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//Source Layer
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char *key = _get_key_val(clayer);
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Efl_Canvas_Vg_Container *ctree = efl_key_data_get(root, key);
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if (!ctree)
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{
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ctree = efl_add(EFL_CANVAS_VG_CONTAINER_CLASS, root);
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efl_key_data_set(root, key, ctree);
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}
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#if DEBUG
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for (int i = 0; i < depth; i++) printf(" ");
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printf("%s (%p) matte:%d => %p\n", efl_class_name_get(efl_class_get(ctree)), ctree, matte_mode, ptree);
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#endif
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//Set Container's alpha color
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efl_gfx_color_set(ctree, clayer->mAlpha, clayer->mAlpha, clayer->mAlpha, clayer->mAlpha);
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_update_vg_tree(ctree, clayer, depth+1);
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if (matte_mode != 0)
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{
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efl_canvas_vg_node_mask_set(ptree, ctree, matte_mode);
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mtarget = ctree;
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}
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matte_mode = (int) clayer->mMatte;
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if (clayer->mMaskList.size > 0)
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{
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mlayer = clayer;
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if (!mtarget) mtarget = ctree;
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}
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ptree = ctree;
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//Remap Matte Mode
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switch (matte_mode)
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{
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case MatteNone:
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matte_mode = 0;
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break;
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case MatteAlpha:
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matte_mode = EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA;
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break;
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case MatteAlphaInv:
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matte_mode = EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA_INV;
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break;
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case MatteLuma:
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matte_mode = 0;
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ERR("TODO: MatteLuma");
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break;
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case MatteLumaInv:
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matte_mode = 0;
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ERR("TODO: MatteLumaInv");
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break;
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default:
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matte_mode = 0;
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break;
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}
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}
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//Construct drawable nodes.
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if (layer->mNodeList.size > 0)
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_construct_drawable_nodes(root, layer, depth);
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//Construct node that have mask.
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if (mlayer)
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_construct_masks(mtarget, mlayer->mMaskList.ptr, mlayer->mMaskList.size, depth);
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}
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#endif
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Eina_Bool
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vg_common_json_create_vg_node(Vg_File_Data *vfd)
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{
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#ifdef BUILD_VG_LOADER_JSON
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Lottie_Animation *lot_anim = (Lottie_Animation *) vfd->loader_data;
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if (!lot_anim) return EINA_FALSE;
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unsigned int frame_num = (vfd->anim_data) ? vfd->anim_data->frame_num : 0;
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const LOTLayerNode *tree =
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lottie_animation_render_tree(lot_anim, frame_num,
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vfd->view_box.w, vfd->view_box.h);
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#if DEBUG
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printf("%s (%p)\n", efl_class_name_get(efl_class_get(vfd->root)), vfd->root);
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#endif
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//Root node
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Efl_Canvas_Vg_Container *root = vfd->root;
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if (!root)
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{
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root = efl_add_ref(EFL_CANVAS_VG_CONTAINER_CLASS, NULL);
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if (!root) return EINA_FALSE;
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efl_key_data_set(root, _get_key_val((void *) tree), tree);
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vfd->root = root;
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}
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efl_gfx_color_set(root, tree->mAlpha, tree->mAlpha, tree->mAlpha, tree->mAlpha);
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_update_vg_tree(root, tree, 1);
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#else
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return EINA_FALSE;
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#endif
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return EINA_TRUE;
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}
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