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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2020 Blender Foundation. All rights reserved. */
/** \file
* \ingroup gpu
*/
#pragma once
#include "gpu_backend.hh"
#include "BLI_vector.hh"
#include "gl_batch.hh"
#include "gl_compute.hh"
#include "gl_context.hh"
#include "gl_drawlist.hh"
#include "gl_framebuffer.hh"
#include "gl_index_buffer.hh"
#include "gl_query.hh"
#include "gl_shader.hh"
#include "gl_storage_buffer.hh"
#include "gl_texture.hh"
#include "gl_uniform_buffer.hh"
#include "gl_vertex_buffer.hh"
namespace blender {
namespace gpu {
class GLBackend : public GPUBackend {
private:
GLSharedOrphanLists shared_orphan_list_;
public:
GLBackend()
{
/* platform_init needs to go first. */
GLBackend::platform_init();
GLBackend::capabilities_init();
GLTexture::samplers_init();
}
~GLBackend()
{
GLBackend::platform_exit();
}
void delete_resources() override
{
/* Delete any resources with context active. */
GLTexture::samplers_free();
}
static GLBackend *get()
{
return static_cast<GLBackend *>(GPUBackend::get());
}
void samplers_update() override
{
GLTexture::samplers_update();
};
Context *context_alloc(void *ghost_window) override
{
return new GLContext(ghost_window, shared_orphan_list_);
};
Batch *batch_alloc() override
{
return new GLBatch();
};
DrawList *drawlist_alloc(int list_length) override
{
return new GLDrawList(list_length);
};
FrameBuffer *framebuffer_alloc(const char *name) override
{
return new GLFrameBuffer(name);
};
IndexBuf *indexbuf_alloc() override
{
return new GLIndexBuf();
};
QueryPool *querypool_alloc() override
{
return new GLQueryPool();
};
Shader *shader_alloc(const char *name) override
{
return new GLShader(name);
};
Texture *texture_alloc(const char *name) override
{
return new GLTexture(name);
};
UniformBuf *uniformbuf_alloc(int size, const char *name) override
{
return new GLUniformBuf(size, name);
};
StorageBuf *storagebuf_alloc(int size, GPUUsageType usage, const char *name) override
{
return new GLStorageBuf(size, usage, name);
};
VertBuf *vertbuf_alloc() override
{
return new GLVertBuf();
};
GLSharedOrphanLists &shared_orphan_list_get()
{
return shared_orphan_list_;
};
void compute_dispatch(int groups_x_len, int groups_y_len, int groups_z_len) override
{
GLContext::get()->state_manager_active_get()->apply_state();
GLCompute::dispatch(groups_x_len, groups_y_len, groups_z_len);
}
void compute_dispatch_indirect(StorageBuf *indirect_buf) override
{
GLContext::get()->state_manager_active_get()->apply_state();
dynamic_cast<GLStorageBuf *>(indirect_buf)->bind_as(GL_DISPATCH_INDIRECT_BUFFER);
/* This barrier needs to be here as it only work on the currently bound indirect buffer. */
glMemoryBarrier(GL_COMMAND_BARRIER_BIT);
glDispatchComputeIndirect((GLintptr)0);
/* Unbind. */
glBindBuffer(GL_DISPATCH_INDIRECT_BUFFER, 0);
}
/* Render Frame Coordination */
void render_begin(void) override{};
void render_end(void) override{};
void render_step(void) override{};
private:
static void platform_init();
static void platform_exit();
static void capabilities_init();
};
} // namespace gpu
} // namespace blender
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