initial commit, 4.5 stable

servers/rendering/renderer_rd/pipeline_cache_rd.cpp

@@ -0,0 +1,123 @@
+/**************************************************************************/
+/*  pipeline_cache_rd.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 "pipeline_cache_rd.h"
+
+#include "core/os/memory.h"
+
+RID PipelineCacheRD::_generate_version(RD::VertexFormatID p_vertex_format_id, RD::FramebufferFormatID p_framebuffer_format_id, bool p_wireframe, uint32_t p_render_pass, uint32_t p_bool_specializations) {
+	RD::PipelineMultisampleState multisample_state_version = multisample_state;
+	multisample_state_version.sample_count = RD::get_singleton()->framebuffer_format_get_texture_samples(p_framebuffer_format_id, p_render_pass);
+
+	bool wireframe = p_wireframe;
+
+	RD::PipelineRasterizationState raster_state_version = rasterization_state;
+	raster_state_version.wireframe = wireframe;
+
+	Vector<RD::PipelineSpecializationConstant> specialization_constants = base_specialization_constants;
+
+	uint32_t bool_index = 0;
+	uint32_t bool_specializations = p_bool_specializations;
+	while (bool_specializations) {
+		if (bool_specializations & (1 << bool_index)) {
+			RD::PipelineSpecializationConstant sc;
+			sc.bool_value = true;
+			sc.constant_id = bool_index;
+			sc.type = RD::PIPELINE_SPECIALIZATION_CONSTANT_TYPE_BOOL;
+			specialization_constants.push_back(sc);
+			bool_specializations &= ~(1 << bool_index);
+		}
+		bool_index++;
+	}
+
+	RID pipeline = RD::get_singleton()->render_pipeline_create(shader, p_framebuffer_format_id, p_vertex_format_id, render_primitive, raster_state_version, multisample_state_version, depth_stencil_state, blend_state, dynamic_state_flags, p_render_pass, specialization_constants);
+	ERR_FAIL_COND_V(pipeline.is_null(), RID());
+	versions = static_cast<Version *>(memrealloc(versions, sizeof(Version) * (version_count + 1)));
+	versions[version_count].framebuffer_id = p_framebuffer_format_id;
+	versions[version_count].vertex_id = p_vertex_format_id;
+	versions[version_count].wireframe = wireframe;
+	versions[version_count].pipeline = pipeline;
+	versions[version_count].render_pass = p_render_pass;
+	versions[version_count].bool_specializations = p_bool_specializations;
+	version_count++;
+	return pipeline;
+}
+
+void PipelineCacheRD::_clear() {
+	// TODO: Clear should probably recompile all the variants already compiled instead to avoid stalls? Needs discussion.
+	if (versions) {
+		for (uint32_t i = 0; i < version_count; i++) {
+			//shader may be gone, so this may not be valid
+			if (RD::get_singleton()->render_pipeline_is_valid(versions[i].pipeline)) {
+				RD::get_singleton()->free(versions[i].pipeline);
+			}
+		}
+		version_count = 0;
+		memfree(versions);
+		versions = nullptr;
+	}
+}
+
+void PipelineCacheRD::setup(RID p_shader, RD::RenderPrimitive p_primitive, const RD::PipelineRasterizationState &p_rasterization_state, RD::PipelineMultisampleState p_multisample, const RD::PipelineDepthStencilState &p_depth_stencil_state, const RD::PipelineColorBlendState &p_blend_state, int p_dynamic_state_flags, const Vector<RD::PipelineSpecializationConstant> &p_base_specialization_constants) {
+	ERR_FAIL_COND(p_shader.is_null());
+	_clear();
+	shader = p_shader;
+	render_primitive = p_primitive;
+	rasterization_state = p_rasterization_state;
+	multisample_state = p_multisample;
+	depth_stencil_state = p_depth_stencil_state;
+	blend_state = p_blend_state;
+	dynamic_state_flags = p_dynamic_state_flags;
+	base_specialization_constants = p_base_specialization_constants;
+}
+void PipelineCacheRD::update_specialization_constants(const Vector<RD::PipelineSpecializationConstant> &p_base_specialization_constants) {
+	base_specialization_constants = p_base_specialization_constants;
+	_clear();
+}
+
+void PipelineCacheRD::update_shader(RID p_shader) {
+	ERR_FAIL_COND(p_shader.is_null());
+	_clear();
+	setup(p_shader, render_primitive, rasterization_state, multisample_state, depth_stencil_state, blend_state, dynamic_state_flags);
+}
+
+void PipelineCacheRD::clear() {
+	_clear();
+	shader = RID(); //clear shader
+}
+
+PipelineCacheRD::PipelineCacheRD() {
+	version_count = 0;
+	versions = nullptr;
+}
+
+PipelineCacheRD::~PipelineCacheRD() {
+	_clear();
+}