A lot of progress with canvas rendering, still far from working.

1 files changed, 121 insertions, 0 deletions

diff --git a/servers/visual/rasterizer/shader_rd.h b/servers/visual/rasterizer/shader_rd.h
new file mode 100644
index 0000000000..814c87d281
--- /dev/null
+++ b/servers/visual/rasterizer/shader_rd.h
@@ -0,0 +1,121 @@
+/*************************************************************************/
+/*  shader_rd.h                                                          */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 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.                */
+/*************************************************************************/
+
+#ifndef SHADER_RD_H
+#define SHADER_RD_H
+
+#include "core/hash_map.h"
+#include "core/map.h"
+#include "core/rid_owner.h"
+#include "core/variant.h"
+#include <stdio.h>
+
+/**
+	@author Juan Linietsky <reduzio@gmail.com>
+*/
+
+class ShaderRD {
+
+	//versions
+	Vector<CharString> variant_defines;
+
+	int vertex_code_start;
+	int fragment_code_start;
+
+	struct Version {
+
+		CharString uniforms;
+		CharString vertex_globals;
+		CharString vertex_code;
+		CharString fragment_light;
+		CharString fragment_globals;
+		CharString fragment_code;
+		Vector<CharString> custom_defines;
+
+		RID *variants; //same size as version defines
+
+		bool valid;
+		bool dirty;
+		bool initialize_needed;
+	};
+
+	void _clear_version(Version *p_version);
+	void _compile_version(Version *p_version);
+
+	RID_Owner<Version> version_owner;
+
+	CharString fragment_codev; //for version and extensions
+	CharString fragment_code0;
+	CharString fragment_code1;
+	CharString fragment_code2;
+	CharString fragment_code3;
+	CharString fragment_code4;
+
+	CharString vertex_codev; //for version and extensions
+	CharString vertex_code0;
+	CharString vertex_code1;
+	CharString vertex_code2;
+	CharString vertex_code3;
+
+	const char *name;
+
+protected:
+	ShaderRD() {}
+	void setup(const char *p_vertex_code, const char *p_fragment_code, const char *p_name);
+
+public:
+	RID version_create();
+
+	void version_set_code(RID p_version, const String &p_uniforms, const String &p_vertex_globals, const String &p_vertex_code, const String &p_fragment_globals, const String &p_fragment_light, const String &p_fragment_code, const Vector<String> &p_custom_defines);
+
+	_FORCE_INLINE_ RID version_get_shader(RID p_version, int p_variant) {
+		ERR_FAIL_INDEX_V(p_variant, variant_defines.size(), RID());
+
+		Version *version = version_owner.getornull(p_version);
+		ERR_FAIL_COND_V(!version, RID());
+
+		if (version->dirty) {
+			_compile_version(version);
+		}
+
+		if (!version->valid) {
+			return RID();
+		}
+
+		return version->variants[p_variant];
+	}
+
+	bool version_free(RID p_version);
+
+	void initialize(const Vector<String> &p_variant_defines);
+	virtual ~ShaderRD();
+};
+
+#endif