diff options
Diffstat (limited to 'servers/rendering/renderer_rd/effects/vrs.cpp')
| -rw-r--r-- | servers/rendering/renderer_rd/effects/vrs.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/servers/rendering/renderer_rd/effects/vrs.cpp b/servers/rendering/renderer_rd/effects/vrs.cpp new file mode 100644 index 0000000000..505a35a269 --- /dev/null +++ b/servers/rendering/renderer_rd/effects/vrs.cpp @@ -0,0 +1,171 @@ +/*************************************************************************/ +/* vrs.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* 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::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(); +} + +void VRS::create_vrs_texture(const int p_base_width, const int p_base_height, const uint32_t p_view_count, RID &p_vrs_texture, RID &p_vrs_fb) { + // TODO find a way to skip this if VRS is not supported, but we don't have access to VulkanContext here, even though we're in vulkan.. hmmm + + // TODO we should find some way to store this properly, we're assuming 16x16 as this seems to be the standard but in our vrs_capacities we + // obtain a minimum and maximum size, and we should choose something within this range and then make sure that is consistantly set when creating + // our frame buffer. Also it is important that we make the resulting size we calculate down below available to the end user so they know the size + // of the VRS buffer to supply. + Size2i texel_size = Size2i(16, 16); + + RD::TextureFormat tf; + if (p_view_count > 1) { + tf.texture_type = RD::TEXTURE_TYPE_2D_ARRAY; + } else { + tf.texture_type = RD::TEXTURE_TYPE_2D; + } + tf.format = RD::DATA_FORMAT_R8_UINT; + tf.width = p_base_width / texel_size.x; + if (p_base_width % texel_size.x != 0) { + tf.width++; + } + tf.height = p_base_height / texel_size.y; + if (p_base_height % texel_size.y != 0) { + tf.height++; + } + tf.array_layers = p_view_count; // create a layer for every view + tf.usage_bits = RD::TEXTURE_USAGE_COLOR_ATTACHMENT_BIT | RD::TEXTURE_USAGE_VRS_ATTACHMENT_BIT | RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_STORAGE_BIT; + tf.samples = RD::TEXTURE_SAMPLES_1; + + p_vrs_texture = RD::get_singleton()->texture_create(tf, RD::TextureView()); + + // by default VRS is assumed to be our VRS attachment, but if we need to write into it, we need a bit more control + Vector<RID> fb; + fb.push_back(p_vrs_texture); + + RD::FramebufferPass pass; + pass.color_attachments.push_back(0); + + Vector<RD::FramebufferPass> passes; + passes.push_back(pass); + + p_vrs_fb = RD::get_singleton()->framebuffer_create_multipass(fb, passes, RenderingDevice::INVALID_ID, p_view_count); +} + +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()) { + Texture *texture = texture_storage->get_texture(vrs_texture); + if (texture) { + // Copy into our density buffer + copy_vrs(texture->rd_texture, p_vrs_fb, texture->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()) { + Texture *texture = texture_storage->get_texture(vrs_texture); + if (texture) { + // Copy into our density buffer + copy_vrs(texture->rd_texture, p_vrs_fb, texture->layers > 1); + } + } + } + } + + RD::get_singleton()->draw_command_end_label(); + } +} |