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BLT-With-Graphics-Template
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shared vbos

main
Brett 2024-01-08 21:12:31 -05:00
parent 1019d4aefb
commit 5bff8b675c
8 changed files with 68 additions and 33 deletions
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15
include/blt/gfx/loader/obj_loader.h
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@ -28,9 +28,18 @@
namespace blt::gfx
{
typedef blt::vec3 vertex_t;
typedef blt::vec2 uv_t;
typedef blt::vec3 normal_t;
typedef blt::vec3f vertex_t;
typedef blt::vec2f uv_t;
typedef blt::vec3f normal_t;
class model_data
{
public:
private:
std::vector<vertex_t> vertices;
std::vector<uv_t> uvs;
std::vector<normal_t> normals;
};
struct face_t
{

47
include/blt/gfx/model.h
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@ -28,14 +28,6 @@
namespace blt::gfx
{
class model_data
{
public:
private:
std::vector<blt::vec3f> vertices;
std::vector<blt::vec2f> uvs;
std::vector<blt::vec3f> normals;
};
struct vbo_t
{
@ -48,6 +40,8 @@ namespace blt::gfx
void bind() const;
void unbind() const;
void allocate(GLsizeiptr size, GLint mem_type = GL_STATIC_DRAW, const void* data = nullptr);
template<typename T>
@ -63,6 +57,28 @@ namespace blt::gfx
void destroy();
};
struct vbo_t_owner
{
vbo_t vbo;
vbo_t_owner() = default;
explicit vbo_t_owner(vbo_t vbo): vbo(vbo)
{}
vbo_t* operator->(){
return &vbo;
}
~vbo_t_owner()
{
if (!vbo.bufferID_)
return;
vbo.destroy();
vbo.unbind();
}
};
/**
* Since most VAOs will not use more than 8 VBOs it makes no sense to heap allocate memory to store them
* This class is used to make that easier to handle
@ -71,8 +87,9 @@ namespace blt::gfx
{
private:
static constexpr size_t DATA_SIZE = 8;
typedef std::array<vbo_t, DATA_SIZE> array_t;
std::variant<array_t, vbo_t*> data_;
using vbo_type = std::shared_ptr<vbo_t_owner>;
using array_t = std::array<vbo_type, DATA_SIZE>;
std::variant<array_t, vbo_type*> data_;
size_t size_ = DATA_SIZE;
size_t max = 0;
@ -89,7 +106,7 @@ namespace blt::gfx
static_dynamic_array& operator=(static_dynamic_array&& move) noexcept = default;
vbo_t& operator[](size_t index);
vbo_type& operator[](size_t index);
[[nodiscard]] inline size_t used() const noexcept
{
@ -98,8 +115,8 @@ namespace blt::gfx
~static_dynamic_array()
{
if (std::holds_alternative<vbo_t*>(data_))
delete[] std::get<vbo_t*>(data_);
if (std::holds_alternative<vbo_type*>(data_))
delete[] std::get<vbo_type*>(data_);
}
};
@ -155,10 +172,10 @@ namespace blt::gfx
*/
inline vbo_t& operator[](size_t index)
{
return VBOs[index];
return VBOs[index]->vbo;
}
inline void bind()
inline void bind() const
{
glBindVertexArray(vaoID);
}

1
include/blt/gfx/stb/stb_image_resize2.h
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@ -6798,6 +6798,7 @@ static stbir__info * stbir__alloc_internal_mem_and_build_samplers( stbir__sample
alloc_ring_buffer_num_entries = conservative_split_output_size;
ring_buffer_size = alloc_ring_buffer_num_entries * ring_buffer_length_bytes;
(void)ring_buffer_size;
// The vertical buffer is used differently, depending on whether we are scattering
// the vertical scanlines, or gathering them.

2
libraries/BLT

@ -1 +1 @@
Subproject commit 8411810ab5df8f330f9d7cf96a96179375dc4704
Subproject commit 903bac9fc10e48005d68a0f9e9d060de538e898c

2
libraries/imgui

@ -1 +1 @@
Subproject commit 240ab5890b2e8da294937a1710b021ac3f271472
Subproject commit a1b06823fe2d964a62fda99385499b218cf5cea5

2
libraries/openal-soft

@ -1 +1 @@
Subproject commit cfab14287405a0d34f6a0fec1336f46415728fcf
Subproject commit 6675317107257c2cc16c947b359d557821d85bf2

29
src/blt/gfx/model.cpp
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@ -17,6 +17,7 @@
*/
#include <blt/gfx/model.h>
#include <blt/std/memory_util.h>
#include "blt/std/logging.h"
namespace blt::gfx
{
@ -24,17 +25,19 @@ namespace blt::gfx
{
size_t next_size = blt::mem::next_byte_allocation(size_);
auto* new_data = new vbo_t[next_size];
auto* new_data = new vbo_type[next_size];
if (std::holds_alternative<vbo_t*>(data_))
if (std::holds_alternative<vbo_type*>(data_))
{
auto* ptr = std::get<vbo_t*>(data_);
std::memcpy(new_data, ptr, sizeof(vbo_t) * size_);
auto* ptr = std::get<vbo_type*>(data_);
for (size_t i = 0; i < size_; i++)
new_data[i] = ptr[i];
delete[] ptr;
} else
{
auto data = std::get<array_t>(data_);
std::memcpy(new_data, data.data(), sizeof(vbo_t) * DATA_SIZE);
for (size_t i = 0; i < DATA_SIZE; i++)
new_data[i] = data[i];
}
data_ = new_data;
size_ = next_size;
@ -43,13 +46,13 @@ namespace blt::gfx
static_dynamic_array::static_dynamic_array()
{}
vbo_t& static_dynamic_array::operator[](size_t index)
static_dynamic_array::vbo_type& static_dynamic_array::operator[](size_t index)
{
if (index >= size_)
swap();
max = std::max(index, max);
if (std::holds_alternative<vbo_t*>(data_))
return std::get<vbo_t*>(data_)[index];
if (std::holds_alternative<vbo_type*>(data_))
return std::get<vbo_type*>(data_)[index];
else
return std::get<array_t>(data_)[index];
}
@ -102,6 +105,11 @@ namespace blt::gfx
glBindBuffer(buffer_type, bufferID_);
}
void vbo_t::unbind() const
{
glBindBuffer(buffer_type, 0);
}
/*
* ----------------------------
* basic_vertex_array
@ -117,8 +125,7 @@ namespace blt::gfx
{
// free all VBOs
for (size_t i = 0; i < VBOs.used(); i++)
if (VBOs[i].bufferID_)
VBOs[i].destroy();
VBOs[i] = nullptr;
// then free the vertex array
glDeleteVertexArrays(1, &vaoID);
}
@ -132,7 +139,7 @@ namespace blt::gfx
glVertexAttribPointer(attribute_number, coordinate_size, type, GL_FALSE, stride < 0 ? 0 : stride, (void*) offset);
glEnableVertexAttribArray(attribute_number);
VBOs[attribute_number] = vbo;
VBOs[attribute_number] = std::make_shared<vbo_t_owner>(vbo);
unbind();
}

1
src/blt/gfx/renderer/resource_manager.cpp
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@ -78,6 +78,7 @@ namespace blt::gfx
auto* back = loaded_textures.back();
textures_2d.insert({back->getName(), new texture_gl2D(back->texture())});
BLT_DEBUG("Loaded texture '%s'", back->getName().c_str());
delete back;
loaded_textures.pop_back();
}
}