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/**************************************************************************/
/* vrs.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "vrs.h"
#include "../renderer_compositor_rd.h"
#include "../storage_rd/texture_storage.h"
#include "../uniform_set_cache_rd.h"
#include "servers/xr_server.h"
using namespace RendererRD;
VRS::VRS() {
{
Vector<String> vrs_modes;
vrs_modes.push_back("\n"); // VRS_DEFAULT
vrs_modes.push_back("\n#define MULTIVIEW\n"); // VRS_MULTIVIEW
vrs_shader.shader.initialize(vrs_modes);
if (!RendererCompositorRD::get_singleton()->is_xr_enabled()) {
vrs_shader.shader.set_variant_enabled(VRS_MULTIVIEW, false);
}
vrs_shader.shader_version = vrs_shader.shader.version_create();
//use additive
for (int i = 0; i < VRS_MAX; i++) {
if (vrs_shader.shader.is_variant_enabled(i)) {
vrs_shader.pipelines[i].setup(vrs_shader.shader.version_get_shader(vrs_shader.shader_version, i), RD::RENDER_PRIMITIVE_TRIANGLES, RD::PipelineRasterizationState(), RD::PipelineMultisampleState(), RD::PipelineDepthStencilState(), RD::PipelineColorBlendState::create_disabled(), 0);
} else {
vrs_shader.pipelines[i].clear();
}
}
}
}
VRS::~VRS() {
vrs_shader.shader.version_free(vrs_shader.shader_version);
}
void VRS::copy_vrs(RID p_source_rd_texture, RID p_dest_framebuffer, bool p_multiview) {
UniformSetCacheRD *uniform_set_cache = UniformSetCacheRD::get_singleton();
ERR_FAIL_NULL(uniform_set_cache);
MaterialStorage *material_storage = MaterialStorage::get_singleton();
ERR_FAIL_NULL(material_storage);
// setup our uniforms
RID default_sampler = material_storage->sampler_rd_get_default(RS::CANVAS_ITEM_TEXTURE_FILTER_NEAREST, RS::CANVAS_ITEM_TEXTURE_REPEAT_DISABLED);
RD::Uniform u_source_rd_texture(RD::UNIFORM_TYPE_SAMPLER_WITH_TEXTURE, 0, Vector<RID>({ default_sampler, p_source_rd_texture }));
VRSMode mode = p_multiview ? VRS_MULTIVIEW : VRS_DEFAULT;
RID shader = vrs_shader.shader.version_get_shader(vrs_shader.shader_version, mode);
ERR_FAIL_COND(shader.is_null());
RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(p_dest_framebuffer, RD::INITIAL_ACTION_KEEP, RD::FINAL_ACTION_READ, RD::INITIAL_ACTION_KEEP, RD::FINAL_ACTION_DISCARD, Vector<Color>());
RD::get_singleton()->draw_list_bind_render_pipeline(draw_list, vrs_shader.pipelines[mode].get_render_pipeline(RD::INVALID_ID, RD::get_singleton()->framebuffer_get_format(p_dest_framebuffer)));
RD::get_singleton()->draw_list_bind_uniform_set(draw_list, uniform_set_cache->get_cache(shader, 0, u_source_rd_texture), 0);
RD::get_singleton()->draw_list_bind_index_array(draw_list, material_storage->get_quad_index_array());
// RD::get_singleton()->draw_list_set_push_constant(draw_list, &vrs_shader.push_constant, sizeof(VRSPushConstant));
RD::get_singleton()->draw_list_draw(draw_list, true);
RD::get_singleton()->draw_list_end();
}
Size2i VRS::get_vrs_texture_size(const Size2i p_base_size) const {
int32_t texel_width = RD::get_singleton()->limit_get(RD::LIMIT_VRS_TEXEL_WIDTH);
int32_t texel_height = RD::get_singleton()->limit_get(RD::LIMIT_VRS_TEXEL_HEIGHT);
int width = p_base_size.x / texel_width;
if (p_base_size.x % texel_width != 0) {
width++;
}
int height = p_base_size.y / texel_height;
if (p_base_size.y % texel_height != 0) {
height++;
}
return Size2i(width, height);
}
void VRS::update_vrs_texture(RID p_vrs_fb, RID p_render_target) {
TextureStorage *texture_storage = TextureStorage::get_singleton();
RS::ViewportVRSMode vrs_mode = texture_storage->render_target_get_vrs_mode(p_render_target);
if (vrs_mode != RS::VIEWPORT_VRS_DISABLED) {
RD::get_singleton()->draw_command_begin_label("VRS Setup");
// TODO figure out if image has changed since it was last copied so we can save some resources..
if (vrs_mode == RS::VIEWPORT_VRS_TEXTURE) {
RID vrs_texture = texture_storage->render_target_get_vrs_texture(p_render_target);
if (vrs_texture.is_valid()) {
RID rd_texture = texture_storage->texture_get_rd_texture(vrs_texture);
int layers = texture_storage->texture_get_layers(vrs_texture);
if (rd_texture.is_valid()) {
// Copy into our density buffer
copy_vrs(rd_texture, p_vrs_fb, layers > 1);
}
}
} else if (vrs_mode == RS::VIEWPORT_VRS_XR) {
Ref<XRInterface> interface = XRServer::get_singleton()->get_primary_interface();
if (interface.is_valid()) {
RID vrs_texture = interface->get_vrs_texture();
if (vrs_texture.is_valid()) {
RID rd_texture = texture_storage->texture_get_rd_texture(vrs_texture);
int layers = texture_storage->texture_get_layers(vrs_texture);
if (rd_texture.is_valid()) {
// Copy into our density buffer
copy_vrs(rd_texture, p_vrs_fb, layers > 1);
}
}
}
}
RD::get_singleton()->draw_command_end_label();
}
}
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