efc97b3919
This changes the drawing paradigm a bit. The VAO configuration is done JIT-style and depends on context active shader. This is to allow more flexibility for implementations to do optimization at lower level. The vao cache is now its own class to isolate the concept. It is this class that is reference by the GLContext for ownership of the containing VAO ids.
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2016 by Mike Erwin.
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* All rights reserved.
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*/
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/** \file
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* \ingroup gpu
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*
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* This interface allow GPU to manage GL objects for multiple context and threads.
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*/
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#pragma once
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#include "MEM_guardedalloc.h"
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#include "GPU_context.h"
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#include <mutex>
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#include <pthread.h>
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#include <string.h>
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#include <unordered_set>
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#include <vector>
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struct GPUFrameBuffer;
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struct GPUMatrixState;
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struct GPUContext {
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public:
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/** State managment */
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GPUShader *shader = NULL;
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GPUFrameBuffer *current_fbo = NULL;
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GPUMatrixState *matrix_state = NULL;
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protected:
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/** Thread on which this context is active. */
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pthread_t thread_;
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bool is_active_;
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public:
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GPUContext();
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virtual ~GPUContext();
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virtual void activate(void) = 0;
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virtual void deactivate(void) = 0;
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bool is_active_on_thread(void);
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MEM_CXX_CLASS_ALLOC_FUNCS("GPUContext")
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};
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GLuint GPU_vao_default(void);
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GLuint GPU_framebuffer_default(void);
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/* These require a gl ctx bound. */
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GLuint GPU_buf_alloc(void);
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GLuint GPU_tex_alloc(void);
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GLuint GPU_vao_alloc(void);
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GLuint GPU_fbo_alloc(void);
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/* These can be called any threads even without gl ctx. */
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void GPU_buf_free(GLuint buf_id);
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void GPU_tex_free(GLuint tex_id);
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/* These two need the ctx the id was created with. */
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void GPU_vao_free(GLuint vao_id, GPUContext *ctx);
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void GPU_fbo_free(GLuint fbo_id, GPUContext *ctx);
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void gpu_context_add_framebuffer(GPUContext *ctx, struct GPUFrameBuffer *fb);
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void gpu_context_remove_framebuffer(GPUContext *ctx, struct GPUFrameBuffer *fb);
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void gpu_context_active_framebuffer_set(GPUContext *ctx, struct GPUFrameBuffer *fb);
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struct GPUFrameBuffer *gpu_context_active_framebuffer_get(GPUContext *ctx);
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struct GPUMatrixState *gpu_context_active_matrix_state_get(void);
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