X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Fpipelinestate.h;h=28624ed7ca64a5a0e5bba111cf45b27477bb11e5;hp=55d96485acbbbac28215369886476857ded52395;hb=HEAD;hpb=fe9836f2d8d7abb0480582c544611a5b248310cc

diff --git a/source/core/pipelinestate.h b/source/core/pipelinestate.h
index 55d96485..a836c407 100644
--- a/source/core/pipelinestate.h
+++ b/source/core/pipelinestate.h
@@ -1,92 +1,128 @@
-#ifndef PIPELINESTATE_H_
-#define PIPELINESTATE_H_
+#ifndef MSP_GL_PIPELINESTATE_H_
+#define MSP_GL_PIPELINESTATE_H_
 
 #include <vector>
 #include <msp/core/noncopyable.h>
+#include "blend.h"
 #include "cullface.h"
+#include "depthtest.h"
+#include "pipelinestate_backend.h"
+#include "primitivetype.h"
+#include "rect.h"
+#include "stenciltest.h"
 
 namespace Msp {
 namespace GL {
 
-class BufferBackedUniformBlock;
-class DefaultUniformBlock;
+class Buffer;
+class Framebuffer;
 class Program;
 class Sampler;
 class Texture;
 class UniformBlock;
 class VertexSetup;
-class WindingTest;
 
-class PipelineState: public NonCopyable
+/**
+Stores state for the entire GPU pipeline.
+
+Applications normally use the higher-level Renderer class rather than this.
+*/
+class PipelineState: public PipelineStateBackend
 {
+	friend PipelineStateBackend;
+
 private:
-	struct BoundTexture
+	enum ResourceType: std::uint8_t
 	{
-		unsigned binding;
-		mutable bool changed;
-		const Texture *texture;
-		const Sampler *sampler;
-
-		BoundTexture(unsigned);
+		NO_RESOURCE,
+		UNIFORM_BLOCK,
+		SAMPLED_TEXTURE,
+		STORAGE_TEXTURE
 	};
 
-	struct BoundUniformBlock
+	struct BoundResource
 	{
-		int binding;
-		mutable bool changed;
-		const UniformBlock *block;
-
-		BoundUniformBlock(int);
+		int binding = 0;
+		ResourceType type = NO_RESOURCE;
+		mutable bool changed = false;
+		mutable bool used = false;
+		union
+		{
+			const UniformBlock *block;
+			const Texture *texture;
+		};
+		union
+		{
+			const Buffer *buffer;
+			const Sampler *sampler;
+		};
+		int mip_level = -1;
+
+		BoundResource(int b): binding(b), texture(0), sampler(0) { }
 	};
 
 	enum ChangeMask
 	{
-		SHPROG = 1,
-		VERTEX_SETUP = 2,
-		FACE_CULL = 4,
-		CLIP_PLANES = 8,
-		TEXTURES = 16,
-		UNIFORMS = 32
+		FRAMEBUFFER = 1,
+		VIEWPORT = 2,
+		SCISSOR = 4,
+		SHPROG = 8,
+		RESOURCES = 16,
+		VERTEX_SETUP = 64,
+		FACE_CULL = 128,
+		DEPTH_TEST = 256,
+		STENCIL_TEST = 512,
+		BLEND = 1024,
+		PRIMITIVE_TYPE = 2048,
+		PATCH_SIZE = 4096
 	};
 
-	const Program *shprog;
-	const VertexSetup *vertex_setup;
-	FaceWinding front_face;
-	CullMode face_cull;
-	unsigned enabled_clip_planes;
-	std::vector<BoundTexture> textures;
-	std::vector<BoundUniformBlock> uniform_blocks;
-	mutable unsigned changes;
-
-	static const PipelineState *last_applied;
-	static std::vector<int> bound_tex_targets;
-
+	const Framebuffer *framebuffer = 0;
+	Rect viewport = Rect::max();
+	Rect scissor = Rect::max();
+	const Program *shprog = 0;
+	std::vector<BoundResource> resources;
+	const VertexSetup *vertex_setup = 0;
+	PrimitiveType primitive_type = TRIANGLES;
+	unsigned patch_size = 0;
+	FaceWinding front_face = COUNTERCLOCKWISE;
+	CullMode face_cull = NO_CULL;
+	DepthTest depth_test;
+	StencilTest stencil_test;
+	Blend blend;
+
+	template<typename T>
+	void set(T &, const T &, unsigned);
 public:
-	PipelineState();
-	~PipelineState();
-
+	void set_framebuffer(const Framebuffer *);
+	void set_viewport(const Rect &);
+	void set_scissor(const Rect &);
 	void set_shader_program(const Program *);
-	void set_vertex_setup(const VertexSetup *);
-	void set_front_face(FaceWinding);
-	void set_face_cull(CullMode);
-	void set_enabled_clip_planes(unsigned);
+	void set_uniform_block(int, const UniformBlock *);
 	void set_texture(unsigned, const Texture *, const Sampler *);
-	void set_uniforms(const DefaultUniformBlock *);
-	void set_uniform_block(unsigned, const BufferBackedUniformBlock *);
+	void set_texture(unsigned, const Texture *, int, const Sampler *);
+	void set_storage_texture(unsigned, const Texture *);
 private:
-	void set_uniform_block_(int, const UniformBlock *);
+	void set_texture_resource(unsigned, const Texture *, int, const Sampler *);
 public:
+	void set_vertex_setup(const VertexSetup *);
+	void set_primitive_type(PrimitiveType);
+	void set_patch_size(unsigned);
+	void set_front_face(FaceWinding);
+	void set_face_cull(CullMode);
+	void set_depth_test(const DepthTest &);
+	void set_stencil_test(const StencilTest &);
+	void set_blend(const Blend &);
 
+	const Framebuffer *get_framebuffer() const { return framebuffer; }
+	const Rect &get_viewport() const { return viewport; }
 	const Program *get_shader_program() const { return shprog; }
 	const VertexSetup *get_vertex_setup() const { return vertex_setup; }
 	FaceWinding get_front_face() const { return front_face; }
 	CullMode get_face_cull() const { return face_cull; }
 
-	void apply() const;
 private:
-	void apply(unsigned) const;
-public:
-	static void clear();
+	void check_bound_resources() const;
 };
 
 } // namespace GL