initial commit, 4.5 stable

servers/rendering/renderer_rd/pipeline_cache_rd.h

@@ -0,0 +1,99 @@
+/**************************************************************************/
+/*  pipeline_cache_rd.h                                                   */
+/**************************************************************************/
+/*                         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.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "core/os/spin_lock.h"
+#include "servers/rendering/rendering_device.h"
+
+class PipelineCacheRD {
+	SpinLock spin_lock;
+
+	RID shader;
+
+	RD::RenderPrimitive render_primitive;
+	RD::PipelineRasterizationState rasterization_state;
+	RD::PipelineMultisampleState multisample_state;
+	RD::PipelineDepthStencilState depth_stencil_state;
+	RD::PipelineColorBlendState blend_state;
+	int dynamic_state_flags = 0;
+	Vector<RD::PipelineSpecializationConstant> base_specialization_constants;
+
+	struct Version {
+		RD::VertexFormatID vertex_id;
+		RD::FramebufferFormatID framebuffer_id;
+		uint32_t render_pass;
+		bool wireframe;
+		uint32_t bool_specializations;
+		RID pipeline;
+	};
+
+	Version *versions = nullptr;
+	uint32_t version_count;
+
+	RID _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 = 0);
+
+	void _clear();
+
+public:
+	void 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 = 0, const Vector<RD::PipelineSpecializationConstant> &p_base_specialization_constants = Vector<RD::PipelineSpecializationConstant>());
+	void update_specialization_constants(const Vector<RD::PipelineSpecializationConstant> &p_base_specialization_constants);
+	void update_shader(RID p_shader);
+
+	_FORCE_INLINE_ RID get_render_pipeline(RD::VertexFormatID p_vertex_format_id, RD::FramebufferFormatID p_framebuffer_format_id, bool p_wireframe = false, uint32_t p_render_pass = 0, uint32_t p_bool_specializations = 0) {
+#ifdef DEBUG_ENABLED
+		ERR_FAIL_COND_V_MSG(shader.is_null(), RID(),
+				"Attempted to use an unused shader variant (shader is null),");
+#endif
+
+		spin_lock.lock();
+		p_wireframe |= rasterization_state.wireframe;
+
+		RID result;
+		for (uint32_t i = 0; i < version_count; i++) {
+			if (versions[i].vertex_id == p_vertex_format_id && versions[i].framebuffer_id == p_framebuffer_format_id && versions[i].wireframe == p_wireframe && versions[i].render_pass == p_render_pass && versions[i].bool_specializations == p_bool_specializations) {
+				result = versions[i].pipeline;
+				spin_lock.unlock();
+				return result;
+			}
+		}
+		result = _generate_version(p_vertex_format_id, p_framebuffer_format_id, p_wireframe, p_render_pass, p_bool_specializations);
+		spin_lock.unlock();
+		return result;
+	}
+
+	_FORCE_INLINE_ uint64_t get_vertex_input_mask() {
+		ERR_FAIL_COND_V(shader.is_null(), 0);
+		return RD::get_singleton()->shader_get_vertex_input_attribute_mask(shader);
+	}
+	void clear();
+	PipelineCacheRD();
+	~PipelineCacheRD();
+};