Differential D16042 Diff 58215 intern/cycles/blender/display_driver.h

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intern/cycles/blender/display_driver.h

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#include "RNA_blender_cpp.h"		#include "RNA_blender_cpp.h"

#include "session/display_driver.h"		#include "session/display_driver.h"

#include "util/thread.h"		#include "util/thread.h"
#include "util/unique_ptr.h"		#include "util/unique_ptr.h"
#include "util/vector.h"		#include "util/vector.h"

		typedef struct GPUContext GPUContext;
		typedef struct GPUFence GPUFence;
		typedef struct GPUShader GPUShader;

CCL_NAMESPACE_BEGIN		CCL_NAMESPACE_BEGIN

/* Base class of shader used for display driver rendering. */		/* Base class of shader used for display driver rendering. */
class BlenderDisplayShader {		class BlenderDisplayShader {
public:		public:
static constexpr const char *position_attribute_name = "pos";		static constexpr const char *position_attribute_name = "pos";
static constexpr const char *tex_coord_attribute_name = "texCoord";		static constexpr const char *tex_coord_attribute_name = "texCoord";

/* Create shader implementation suitable for the given render engine and scene configuration. */		/* Create shader implementation suitable for the given render engine and scene configuration. */
static unique_ptr<BlenderDisplayShader> create(BL::RenderEngine &b_engine, BL::Scene &b_scene);		static unique_ptr<BlenderDisplayShader> create(BL::RenderEngine &b_engine, BL::Scene &b_scene);

BlenderDisplayShader() = default;		BlenderDisplayShader() = default;
virtual ~BlenderDisplayShader() = default;		virtual ~BlenderDisplayShader() = default;

virtual void bind(int width, int height) = 0;		virtual GPUShader *bind(int width, int height) = 0;
virtual void unbind() = 0;		virtual void unbind() = 0;

/* Get attribute location for position and texture coordinate respectively.		/* Get attribute location for position and texture coordinate respectively.
* NOTE: The shader needs to be bound to have access to those. */		* NOTE: The shader needs to be bound to have access to those. */
virtual int get_position_attrib_location();		virtual int get_position_attrib_location();
virtual int get_tex_coord_attrib_location();		virtual int get_tex_coord_attrib_location();

protected:		protected:
/* Get program of this display shader.		/* Get program of this display shader.
* NOTE: The shader needs to be bound to have access to this. */		* NOTE: The shader needs to be bound to have access to this. */
virtual uint get_shader_program() = 0;		virtual GPUShader *get_shader_program() = 0;

/* Cached values of various OpenGL resources. */		/* Cached values of various OpenGL resources. */
int position_attribute_location_ = -1;		int position_attribute_location_ = -1;
int tex_coord_attribute_location_ = -1;		int tex_coord_attribute_location_ = -1;
};		};

/* Implementation of display rendering shader used in the case when render engine does not support		/* Implementation of display rendering shader used in the case when render engine does not support
* display space shader. */		* display space shader. */
class BlenderFallbackDisplayShader : public BlenderDisplayShader {		class BlenderFallbackDisplayShader : public BlenderDisplayShader {
public:		public:
virtual void bind(int width, int height) override;		virtual GPUShader *bind(int width, int height) override;
virtual void unbind() override;		virtual void unbind() override;

protected:		protected:
virtual uint get_shader_program() override;		virtual GPUShader *get_shader_program() override;

void create_shader_if_needed();		void create_shader_if_needed();
void destroy_shader();		void destroy_shader();

uint shader_program_ = 0;		GPUShader *shader_program_ = 0;
int image_texture_location_ = -1;		int image_texture_location_ = -1;
int fullscreen_location_ = -1;		int fullscreen_location_ = -1;

/* Shader compilation attempted. Which means, that if the shader program is 0 then compilation or		/* Shader compilation attempted. Which means, that if the shader program is 0 then compilation or
* linking has failed. Do not attempt to re-compile the shader. */		* linking has failed. Do not attempt to re-compile the shader. */
bool shader_compile_attempted_ = false;		bool shader_compile_attempted_ = false;
};		};

class BlenderDisplaySpaceShader : public BlenderDisplayShader {		class BlenderDisplaySpaceShader : public BlenderDisplayShader {
public:		public:
BlenderDisplaySpaceShader(BL::RenderEngine &b_engine, BL::Scene &b_scene);		BlenderDisplaySpaceShader(BL::RenderEngine &b_engine, BL::Scene &b_scene);

virtual void bind(int width, int height) override;		virtual GPUShader *bind(int width, int height) override;
virtual void unbind() override;		virtual void unbind() override;

protected:		protected:
virtual uint get_shader_program() override;		virtual GPUShader *get_shader_program() override;

BL::RenderEngine b_engine_;		BL::RenderEngine b_engine_;
BL::Scene &b_scene_;		BL::Scene &b_scene_;

/* Cached values of various OpenGL resources. */		/* Cached values of various OpenGL resources. */
uint shader_program_ = 0;		GPUShader *shader_program_ = nullptr;
};		};

/* Display driver implementation which is specific for Blender viewport integration. */		/* Display driver implementation which is specific for Blender viewport integration. */
class BlenderDisplayDriver : public DisplayDriver {		class BlenderDisplayDriver : public DisplayDriver {
public:		public:
BlenderDisplayDriver(BL::RenderEngine &b_engine, BL::Scene &b_scene, const bool background);		BlenderDisplayDriver(BL::RenderEngine &b_engine, BL::Scene &b_scene, const bool background);
~BlenderDisplayDriver();		~BlenderDisplayDriver();

Show All 22 Lines	protected:
/* Helper function which allocates new GPU context. */		/* Helper function which allocates new GPU context. */
void gpu_context_create();		void gpu_context_create();
bool gpu_context_enable();		bool gpu_context_enable();
void gpu_context_disable();		void gpu_context_disable();
void gpu_context_destroy();		void gpu_context_destroy();
void gpu_context_lock();		void gpu_context_lock();
void gpu_context_unlock();		void gpu_context_unlock();

		/* Create GPU resources used by the dispaly driver. */
		bool gpu_resources_create();

/* Destroy all GPU resources which are being used by this object. */		/* Destroy all GPU resources which are being used by this object. */
void gpu_resources_destroy();		void gpu_resources_destroy();

BL::RenderEngine b_engine_;		BL::RenderEngine b_engine_;
bool background_;		bool background_;

/* Content of the display is to be filled with zeroes. */		/* Content of the display is to be filled with zeroes. */
std::atomic<bool> need_clear_ = true;		std::atomic<bool> need_clear_ = true;

unique_ptr<BlenderDisplayShader> display_shader_;		unique_ptr<BlenderDisplayShader> display_shader_;

/* Opaque storage for an internal state and data for tiles. */		/* Opaque storage for an internal state and data for tiles. */
struct Tiles;		struct Tiles;
unique_ptr<Tiles> tiles_;		unique_ptr<Tiles> tiles_;

void *gl_render_sync_ = nullptr;		GPUFence *gpu_render_sync_ = nullptr;
void *gl_upload_sync_ = nullptr;		GPUFence *gpu_upload_sync_ = nullptr;

float2 zoom_ = make_float2(1.0f, 1.0f);		float2 zoom_ = make_float2(1.0f, 1.0f);
};		};

CCL_NAMESPACE_END		CCL_NAMESPACE_END