526 lines
19 KiB
C++
526 lines
19 KiB
C++
#include "pch.h"
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#include "log.h"
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#include "node_stroke_preview.h"
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#include "texture.h"
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#include "shader.h"
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#include "bezier.h"
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#include "canvas.h"
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#include "app.h"
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#include "legacy_canvas_draw_merge_services.h"
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#include "legacy_canvas_stroke_composite_services.h"
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#include "legacy_canvas_stroke_execution_services.h"
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#include "legacy_canvas_stroke_preview_services.h"
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#include "legacy_canvas_stroke_shader_services.h"
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#include "legacy_canvas_stroke_services.h"
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#include "legacy_node_stroke_preview_execution_services.h"
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#include "legacy_node_stroke_preview_runtime_services.h"
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#include "legacy_node_stroke_preview_sample_services.h"
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#include "legacy_ui_gl_dispatch.h"
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#include "paint_renderer/compositor.h"
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#include "renderer_gl/opengl_capabilities.h"
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#include "util.h"
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#include <array>
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#include <cstdint>
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namespace {
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pp::renderer::RenderDeviceFeatures stroke_preview_render_device_features() noexcept
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{
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return ShaderManager::render_device_features();
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}
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void set_active_texture_unit(std::uint32_t unit_index)
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{
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pp::legacy::ui_gl::activate_texture_unit(unit_index, "NodeStrokePreview");
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}
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void unbind_texture_2d()
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{
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pp::legacy::ui_gl::unbind_texture_2d("NodeStrokePreview");
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}
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void apply_stroke_preview_viewport(std::int32_t x, std::int32_t y, std::int32_t width, std::int32_t height)
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{
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pp::legacy::ui_gl::apply_viewport(x, y, width, height, "NodeStrokePreview");
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}
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pp::renderer::gl::OpenGlViewportRect query_stroke_preview_viewport()
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{
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return pp::legacy::ui_gl::query_viewport_rect("NodeStrokePreview");
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}
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std::array<float, 4> query_stroke_preview_clear_color()
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{
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return pp::legacy::ui_gl::query_clear_color("NodeStrokePreview");
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}
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void apply_stroke_preview_clear_color(std::array<float, 4> color)
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{
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pp::legacy::ui_gl::set_clear_color(color, "NodeStrokePreview");
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}
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void apply_stroke_preview_scissor(std::int32_t x, std::int32_t y, std::int32_t width, std::int32_t height)
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{
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pp::legacy::ui_gl::apply_scissor_rect(x, y, width, height, "NodeStrokePreview");
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}
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void apply_stroke_preview_capability(std::uint32_t state, bool enabled)
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{
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pp::legacy::ui_gl::set_capability(state, enabled, "NodeStrokePreview");
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}
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namespace stroke_preview_composite_slots {
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constexpr std::uint32_t kBackground = 0U;
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constexpr std::uint32_t kStroke = 1U;
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constexpr std::uint32_t kDual = 3U;
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constexpr std::uint32_t kPattern = 4U;
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}
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namespace stroke_preview_live_slots {
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constexpr std::uint32_t kTip = 0U;
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constexpr std::uint32_t kDestination = 1U;
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constexpr std::uint32_t kPattern = 2U;
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constexpr std::uint32_t kMixer = 3U;
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constexpr std::uint32_t kReservedLinear = 4U;
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}
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pp::panopainter::LegacyNodeStrokePreviewMixPassRequest make_stroke_preview_mix_pass_request(
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const Brush& brush,
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glm::vec2 resolution) noexcept
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{
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return {
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.resolution = resolution,
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.pattern_scale = brush.m_pattern_scale,
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.pattern_flipx = brush.m_pattern_flipx,
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.pattern_flipy = brush.m_pattern_flipy,
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.pattern_invert = brush.m_pattern_invert,
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.pattern_brightness = brush.m_pattern_brightness,
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.pattern_contrast = brush.m_pattern_contrast,
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.pattern_depth = brush.m_pattern_depth,
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.pattern_rand_offset = brush.m_pattern_rand_offset,
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.pattern_enabled = brush.m_pattern_enabled,
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.pattern_eachsample = brush.m_pattern_eachsample,
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.tip_wet = brush.m_tip_wet,
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.tip_mix = brush.m_tip_mix,
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.tip_noise = brush.m_tip_noise,
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.dual_enabled = brush.m_dual_enabled,
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.dual_blend_mode = brush.m_dual_blend_mode,
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.pattern_blend_mode = brush.m_pattern_blend_mode,
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.dual_opacity = brush.m_dual_opacity,
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.blend_mode = brush.m_blend_mode,
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};
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}
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pp::panopainter::LegacyStrokeCompositeUniforms make_stroke_preview_mix_composite_uniforms(
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const pp::panopainter::LegacyNodeStrokePreviewMixPassPlan::ShaderPlan& shader_plan) noexcept
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{
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return {
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.resolution = shader_plan.resolution,
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.pattern = {
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.scale = shader_plan.pattern_scale,
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.invert = shader_plan.pattern_invert,
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.brightness = shader_plan.pattern_brightness,
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.contrast = shader_plan.pattern_contrast,
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.depth = shader_plan.pattern_depth,
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.blend_mode = shader_plan.pattern_blend_mode,
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.offset = shader_plan.pattern_offset,
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},
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.mvp = glm::ortho(-.5f, .5f, -.5f, .5f, -1.f, 1.f),
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.layer_alpha = 1.0f,
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.alpha_lock = false,
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.mask_enabled = false,
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.use_fragcoord = false,
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.blend_mode = shader_plan.blend_mode,
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.use_dual = shader_plan.use_dual,
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.dual_blend_mode = shader_plan.dual_blend_mode,
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.dual_alpha = shader_plan.dual_alpha,
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.use_pattern = shader_plan.use_pattern,
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};
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}
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pp::panopainter::LegacyCanvasStrokeMixPassRequest make_stroke_preview_mix_pass_execution_request(
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const pp::panopainter::LegacyNodeStrokePreviewMixPassPlan::ShaderPlan& shader,
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RTT& mixer_rtt,
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const Brush& brush,
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Sampler& linear_sampler,
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Texture2D& background_texture,
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Texture2D& stroke_texture,
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Texture2D& dual_texture,
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std::span<const pp::panopainter::LegacyCanvasStrokeMixPassPlane> mix_planes,
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std::function<void()> draw_mix)
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{
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return pp::panopainter::make_legacy_canvas_stroke_mix_pass_request(
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"NodeStrokePreview::stroke_draw_mix",
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glm::vec2(static_cast<float>(mixer_rtt.getWidth()), static_cast<float>(mixer_rtt.getHeight())),
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mix_planes,
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[&] {
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linear_sampler.bind(stroke_preview_composite_slots::kBackground);
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linear_sampler.bind(stroke_preview_composite_slots::kStroke);
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linear_sampler.bind(stroke_preview_composite_slots::kDual);
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linear_sampler.bind(stroke_preview_composite_slots::kPattern);
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set_active_texture_unit(stroke_preview_composite_slots::kBackground);
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background_texture.bind();
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set_active_texture_unit(stroke_preview_composite_slots::kStroke);
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stroke_texture.bind();
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set_active_texture_unit(stroke_preview_composite_slots::kDual);
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dual_texture.bind();
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set_active_texture_unit(stroke_preview_composite_slots::kPattern);
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brush.m_pattern_texture ? brush.m_pattern_texture->bind() : unbind_texture_2d();
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},
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[] {},
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[&](int, const glm::mat4& plane_mvp) {
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auto uniforms = make_stroke_preview_mix_composite_uniforms(shader);
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uniforms.mvp = plane_mvp;
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pp::panopainter::setup_legacy_stroke_composite_shader(uniforms);
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},
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[&](int) {
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set_active_texture_unit(stroke_preview_composite_slots::kBackground);
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background_texture.bind();
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},
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[&](int) {
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set_active_texture_unit(stroke_preview_composite_slots::kStroke);
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stroke_texture.bind();
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},
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[&](int) {
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set_active_texture_unit(stroke_preview_composite_slots::kDual);
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dual_texture.bind();
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},
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std::move(draw_mix),
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[&](int) {
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set_active_texture_unit(stroke_preview_composite_slots::kDual);
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dual_texture.unbind();
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},
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[&](int) {
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set_active_texture_unit(stroke_preview_composite_slots::kStroke);
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stroke_texture.unbind();
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},
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[&](int) {
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set_active_texture_unit(stroke_preview_composite_slots::kBackground);
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background_texture.unbind();
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});
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}
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void bind_stroke_preview_live_samplers(
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Sampler& mipmap_sampler,
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Sampler& linear_sampler,
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Sampler& repeat_sampler)
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{
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mipmap_sampler.bind(stroke_preview_live_slots::kTip);
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linear_sampler.bind(stroke_preview_live_slots::kDestination);
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repeat_sampler.bind(stroke_preview_live_slots::kPattern);
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linear_sampler.bind(stroke_preview_live_slots::kMixer);
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linear_sampler.bind(stroke_preview_live_slots::kReservedLinear);
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}
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void bind_stroke_preview_dual_pass_textures(const Brush& dual_brush)
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{
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set_active_texture_unit(stroke_preview_live_slots::kTip);
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dual_brush.m_tip_texture ?
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dual_brush.m_tip_texture->bind() :
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unbind_texture_2d();
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}
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void bind_stroke_preview_destination_texture(Texture2D& texture)
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{
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set_active_texture_unit(stroke_preview_live_slots::kDestination);
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texture.bind();
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}
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void unbind_stroke_preview_destination_texture(Texture2D& texture)
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{
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set_active_texture_unit(stroke_preview_live_slots::kDestination);
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texture.unbind();
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}
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void copy_stroke_preview_destination_texture_region(
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int src_x,
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int src_y,
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int dst_x,
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int dst_y,
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int width,
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int height)
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{
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copy_framebuffer_to_texture_2d(src_x, src_y, dst_x, dst_y, width, height);
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}
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void execute_stroke_preview_background_capture_pass(
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glm::vec2 size,
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bool colorize,
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Texture2D& background_texture,
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const std::function<void()>& draw_checkerboard)
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{
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const float aspect = size.x / size.y;
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pp::panopainter::setup_legacy_canvas_draw_merge_checkerboard_shader(
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pp::panopainter::LegacyCanvasDrawMergeCheckerboardUniforms {
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.mvp = glm::ortho(-.5f, .5f, -.5f / aspect, .5f / aspect, -1.f, 1.f),
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.colorize = colorize,
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});
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draw_checkerboard();
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const auto copy_status = pp::paint_renderer::copy_stroke_preview_result_to_texture(
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[&] {
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background_texture.bind();
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},
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[](
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int src_x,
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int src_y,
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int dst_x,
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int dst_y,
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int width,
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int height) {
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copy_framebuffer_to_texture_2d(src_x, src_y, dst_x, dst_y, width, height);
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},
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pp::paint_renderer::StrokePreviewCopySize {
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.width = static_cast<int>(size.x),
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.height = static_cast<int>(size.y),
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});
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assert(copy_status.ok());
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}
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}
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Node* NodeStrokePreview::clone_instantiate() const
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{
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return new NodeStrokePreview();
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}
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void NodeStrokePreview::clone_copy(Node* dest) const
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{
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NodeBorder::clone_copy(dest);
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}
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void NodeStrokePreview::clone_children(Node* dest) const
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{
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// stop children cloning
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}
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void NodeStrokePreview::clone_finalize(Node* dest) const
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{
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NodeStrokePreview* n = (NodeStrokePreview*)dest;
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n->init_controls();
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}
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void NodeStrokePreview::init_controls()
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{
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// TextureManager::load("data/thumbs/Round-Hard.png");
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// Canvas::I->m_current_brush.m_tex_id = const_hash("data/thumbs/Round-Hard.png");
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}
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void NodeStrokePreview::stroke_draw_mix(const glm::vec2& bb_min, const glm::vec2& bb_sz)
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{
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const auto& b = m_brush;
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const auto mix_pass = pp::panopainter::plan_legacy_node_stroke_preview_mix_pass(
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make_stroke_preview_mix_pass_request(*b, m_size));
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const auto mix_planes = std::array {
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pp::panopainter::LegacyCanvasStrokeMixPassPlane {
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.index = 0,
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.visible = true,
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.has_target = true,
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.opacity = 1.0f,
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.mvp = glm::ortho(-.5f, .5f, -.5f, .5f, -1.f, 1.f),
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},
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};
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gl_state gl;
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const auto mix_result = pp::panopainter::execute_legacy_canvas_stroke_mix_pass_with_setup(
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[&] {
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apply_stroke_preview_viewport(0, 0, m_rtt_mixer.getWidth(), m_rtt_mixer.getHeight());
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apply_stroke_preview_capability(pp::renderer::gl::depth_test_state(), false);
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apply_stroke_preview_capability(pp::renderer::gl::scissor_test_state(), true);
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apply_stroke_preview_capability(pp::renderer::gl::blend_state(), false);
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apply_stroke_preview_scissor(
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static_cast<std::int32_t>(bb_min.x),
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static_cast<std::int32_t>(bb_min.y),
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static_cast<std::int32_t>(bb_sz.x),
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static_cast<std::int32_t>(bb_sz.y));
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gl.save();
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m_rtt_mixer.bindFramebuffer();
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},
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[&] {
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m_rtt_mixer.unbindFramebuffer();
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gl.restore();
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},
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make_stroke_preview_mix_pass_execution_request(
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mix_pass.shader,
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m_rtt_mixer,
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*m_brush,
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m_sampler_linear,
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m_tex_background,
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m_tex,
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m_tex_dual,
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mix_planes,
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[this] {
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m_plane.draw_fill();
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}));
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assert(mix_result.ok);
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}
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glm::vec4 NodeStrokePreview::stroke_draw_samples(
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std::array<vertex_t, 4>& P,
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Texture2D& blend_tex,
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bool copy_stroke_destination)
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{
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const glm::vec2 size = { m_rtt.getWidth(), m_rtt.getHeight() };
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return pp::panopainter::execute_legacy_node_stroke_preview_sample_pass(
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pp::panopainter::LegacyNodeStrokePreviewSamplePassRequest {
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.target_size = size,
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.vertices = P,
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.brush_shape = m_brush_shape,
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.copy_stroke_destination = copy_stroke_destination,
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.bind_destination_texture = [&] {
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bind_stroke_preview_destination_texture(blend_tex);
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},
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.copy_framebuffer_to_destination_texture = [](
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int src_x,
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int src_y,
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int dst_x,
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int dst_y,
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int width,
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int height) {
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copy_stroke_preview_destination_texture_region(
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src_x,
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src_y,
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dst_x,
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dst_y,
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width,
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height);
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},
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.unbind_destination_texture = [&] {
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unbind_stroke_preview_destination_texture(blend_tex);
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},
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});
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}
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std::vector<NodeStrokePreview::StrokeFrame> NodeStrokePreview::stroke_draw_compute(const Stroke& stroke, float zoom) const
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{
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auto samples = const_cast<Stroke&>(stroke).compute_samples();
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StrokeSample previous_sample = stroke.m_prev_sample;
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previous_sample.size *= zoom;
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for (auto& sample : samples) {
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sample.size *= zoom;
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}
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return pp::panopainter::plan_legacy_canvas_stroke_frames(
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pp::panopainter::LegacyCanvasStrokeComputeRequest {
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.previous_sample = previous_sample,
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.samples = samples,
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.zoom = 1.0f,
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.mixer_size = glm::vec2(m_rtt.getWidth(), m_rtt.getHeight()),
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},
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[](
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std::array<vertex_t, 4>& brush_quad,
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bool /*project_3d*/,
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glm::mat4 /*model_view*/) {
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return brush_quad;
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},
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[](
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glm::vec4 mixer_rect,
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glm::vec4 color,
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float flow,
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float opacity,
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std::array<vertex_t, 4>&& shapes) -> StrokeFrame {
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return StrokeFrame {
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.col = color,
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.flow = flow,
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.opacity = opacity,
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.shapes = std::move(shapes),
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.mixer_rect = mixer_rect,
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};
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});
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}
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void NodeStrokePreview::draw_stroke_immediate()
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{
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if (m_size.x == 0 || m_size.y == 0)
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return;
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if (!pp::panopainter::ensure_legacy_node_stroke_preview_render_targets(
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pp::panopainter::LegacyNodeStrokePreviewRenderTargetSetup {
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.preview_rtt = m_rtt,
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.preview_rtt_mixer = m_rtt_mixer,
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.preview_stroke_texture = m_tex,
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.preview_dual_texture = m_tex_dual,
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.preview_background_texture = m_tex_background,
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.preview_image_texture = m_tex_preview,
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.size = m_preview_size,
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})) {
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return;
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}
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const auto vp = query_stroke_preview_viewport();
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const auto cc = query_stroke_preview_clear_color();
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const glm::vec2 size = { m_rtt.getWidth(), m_rtt.getHeight() };
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const float zoom = root()->m_zoom;
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const bool sequence_ok = pp::panopainter::execute_legacy_node_stroke_preview_immediate_runtime(
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pp::panopainter::LegacyNodeStrokePreviewImmediateRuntimeRequest {
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.brush = m_brush,
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.preview_size = m_size,
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.zoom = zoom,
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.min_flow = m_min_flow,
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.stroke_max_size_override = m_max_size,
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.pad_override = m_pad_override,
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.camera_fov = Canvas::I->m_cam_fov,
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.camera_rot = Canvas::I->m_cam_rot,
|
|
.render_device_features = stroke_preview_render_device_features(),
|
|
.preview_rtt = m_rtt,
|
|
.preview_rtt_mixer = m_rtt_mixer,
|
|
.preview_stroke_texture = m_tex,
|
|
.preview_dual_texture = m_tex_dual,
|
|
.preview_background_texture = m_tex_background,
|
|
.preview_image_texture = m_tex_preview,
|
|
.linear_sampler = m_sampler_linear,
|
|
.repeat_sampler = m_sampler_linear_repeat,
|
|
.prepare_render_target = [&] {
|
|
apply_stroke_preview_viewport(0, 0, m_rtt.getWidth(), m_rtt.getHeight());
|
|
m_rtt.bindFramebuffer();
|
|
m_rtt.clear();
|
|
bind_stroke_preview_live_samplers(
|
|
m_sampler_mipmap,
|
|
m_sampler_linear,
|
|
m_sampler_linear_repeat);
|
|
},
|
|
.finish_render_target = [&] {
|
|
m_rtt.unbindFramebuffer();
|
|
},
|
|
.set_blend_enabled = [&](bool enabled) {
|
|
apply_stroke_preview_capability(pp::renderer::gl::blend_state(), enabled);
|
|
},
|
|
.setup_stroke_shader = [](const pp::panopainter::LegacyStrokeShaderSetupUniforms& uniforms) {
|
|
pp::panopainter::setup_legacy_stroke_shader(uniforms);
|
|
},
|
|
.bind_dual_pass_textures = [](const Brush& dual_brush) {
|
|
bind_stroke_preview_dual_pass_textures(dual_brush);
|
|
},
|
|
.capture_background = [&](bool colorize) {
|
|
execute_stroke_preview_background_capture_pass(
|
|
size,
|
|
colorize,
|
|
m_tex_background,
|
|
[&] {
|
|
m_plane.draw_fill();
|
|
});
|
|
},
|
|
.compute_frames = [&](const Stroke& stroke, float frame_zoom) {
|
|
return stroke_draw_compute(stroke, frame_zoom);
|
|
},
|
|
.draw_samples = [&](std::array<vertex_t, 4>& shapes, Texture2D& texture, bool copy_stroke_destination) {
|
|
return stroke_draw_samples(shapes, texture, copy_stroke_destination);
|
|
},
|
|
.draw_mix = [&](const glm::vec2& bb_min, const glm::vec2& bb_sz) {
|
|
stroke_draw_mix(bb_min, bb_sz);
|
|
},
|
|
.unbind_mixer_texture = [&] {
|
|
set_active_texture_unit(3U);
|
|
m_rtt_mixer.unbindTexture();
|
|
},
|
|
.bind_pattern_texture = [&] {
|
|
m_brush->m_pattern_texture ? m_brush->m_pattern_texture->bind() : unbind_texture_2d();
|
|
},
|
|
.draw_composite = [&] {
|
|
m_plane.draw_fill();
|
|
},
|
|
});
|
|
assert(sequence_ok);
|
|
|
|
apply_stroke_preview_viewport(vp.x, vp.y, vp.width, vp.height);
|
|
apply_stroke_preview_clear_color(cc);
|
|
}
|