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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2019 Blender Foundation. */
/** \file
* \ingroup draw_engine
*/
#include "DRW_render.h"
#include "DNA_curve_types.h"
#include "overlay_private.h"
void OVERLAY_edit_curve_cache_init(OVERLAY_Data *vedata)
{
OVERLAY_PassList *psl = vedata->psl;
OVERLAY_PrivateData *pd = vedata->stl->pd;
const DRWContextState *draw_ctx = DRW_context_state_get();
View3D *v3d = draw_ctx->v3d;
DRWShadingGroup *grp;
GPUShader *sh;
DRWState state;
pd->edit_curve.show_handles = v3d->overlay.handle_display != CURVE_HANDLE_NONE;
pd->edit_curve.handle_display = v3d->overlay.handle_display;
pd->shdata.edit_curve_normal_length = v3d->overlay.normals_length;
/* Run Twice for in-front passes. */
for (int i = 0; i < 2; i++) {
state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH;
state |= ((i == 0) ? DRW_STATE_DEPTH_LESS_EQUAL : DRW_STATE_DEPTH_ALWAYS);
DRW_PASS_CREATE(psl->edit_curve_wire_ps[i], state | pd->clipping_state);
sh = OVERLAY_shader_edit_curve_wire();
pd->edit_curve_normal_grp[i] = grp = DRW_shgroup_create(sh, psl->edit_curve_wire_ps[i]);
DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo);
DRW_shgroup_uniform_float_copy(grp, "normalSize", pd->shdata.edit_curve_normal_length);
pd->edit_curve_wire_grp[i] = grp = DRW_shgroup_create(sh, psl->edit_curve_wire_ps[i]);
DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo);
DRW_shgroup_uniform_float_copy(grp, "normalSize", 0.0f);
}
{
state = DRW_STATE_WRITE_COLOR;
DRW_PASS_CREATE(psl->edit_curve_handle_ps, state | pd->clipping_state);
sh = OVERLAY_shader_edit_curve_handle();
pd->edit_curve_handle_grp = grp = DRW_shgroup_create(sh, psl->edit_curve_handle_ps);
DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo);
DRW_shgroup_uniform_bool_copy(grp, "showCurveHandles", pd->edit_curve.show_handles);
DRW_shgroup_uniform_int_copy(grp, "curveHandleDisplay", pd->edit_curve.handle_display);
DRW_shgroup_state_enable(grp, DRW_STATE_BLEND_ALPHA);
sh = OVERLAY_shader_edit_curve_point();
pd->edit_curve_points_grp = grp = DRW_shgroup_create(sh, psl->edit_curve_handle_ps);
DRW_shgroup_uniform_bool_copy(grp, "showCurveHandles", pd->edit_curve.show_handles);
DRW_shgroup_uniform_int_copy(grp, "curveHandleDisplay", pd->edit_curve.handle_display);
DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo);
}
}
void OVERLAY_edit_curve_cache_populate(OVERLAY_Data *vedata, Object *ob)
{
OVERLAY_PrivateData *pd = vedata->stl->pd;
bool draw_normals = (pd->overlay.edit_flag & V3D_OVERLAY_EDIT_CU_NORMALS) != 0;
bool do_xray = (ob->dtx & OB_DRAW_IN_FRONT) != 0;
Curve *cu = ob->data;
struct GPUBatch *geom;
geom = DRW_cache_curve_edge_wire_get(ob);
if (geom) {
DRW_shgroup_call_no_cull(pd->edit_curve_wire_grp[do_xray], geom, ob);
}
if ((cu->flag & CU_3D) && draw_normals) {
geom = DRW_cache_curve_edge_normal_get(ob);
DRW_shgroup_call_instances(pd->edit_curve_normal_grp[do_xray], ob, geom, 3);
}
geom = DRW_cache_curve_edge_overlay_get(ob);
if (geom) {
DRW_shgroup_call_no_cull(pd->edit_curve_handle_grp, geom, ob);
}
geom = DRW_cache_curve_vert_overlay_get(ob);
if (geom) {
DRW_shgroup_call_no_cull(pd->edit_curve_points_grp, geom, ob);
}
}
void OVERLAY_edit_surf_cache_populate(OVERLAY_Data *vedata, Object *ob)
{
OVERLAY_PrivateData *pd = vedata->stl->pd;
struct GPUBatch *geom;
geom = DRW_cache_curve_edge_overlay_get(ob);
if (geom) {
DRW_shgroup_call_no_cull(pd->edit_curve_handle_grp, geom, ob);
}
geom = DRW_cache_curve_vert_overlay_get(ob);
if (geom) {
DRW_shgroup_call_no_cull(pd->edit_curve_points_grp, geom, ob);
}
}
void OVERLAY_edit_curve_draw(OVERLAY_Data *vedata)
{
OVERLAY_PassList *psl = vedata->psl;
OVERLAY_FramebufferList *fbl = vedata->fbl;
if (DRW_state_is_fbo()) {
GPU_framebuffer_bind(fbl->overlay_default_fb);
}
DRW_draw_pass(psl->edit_curve_wire_ps[0]);
DRW_draw_pass(psl->edit_curve_wire_ps[1]);
DRW_draw_pass(psl->edit_curve_handle_ps);
}
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