83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/*
|
|
* <Short Description>
|
|
* Copyright (C) 2023 Brett Terpstra
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <blt/gfx/state.h>
|
|
#include <blt/std/logging.h>
|
|
#include "blt/std/assert.h"
|
|
|
|
void blt::gfx::matrix_state_manager::update()
|
|
{
|
|
pvm = perspective * view;
|
|
blt::mat4x4 scaled;
|
|
scaled.scale(scale_2d);
|
|
ovm = scaled * ortho * view_2d;
|
|
BLT_ASSERT(global_matrix_ubo != nullptr && "You forgot to call create_internals(). Make sure you call cleanup() as well!");
|
|
global_matrix_ubo->upload((void*)perspective.ptr(), sizeof(blt::mat4x4), 0);
|
|
global_matrix_ubo->upload((void*)ortho.ptr(), sizeof(blt::mat4x4), sizeof(blt::mat4x4));
|
|
global_matrix_ubo->upload((void*)view.ptr(), sizeof(blt::mat4x4), sizeof(blt::mat4x4) * 2);
|
|
global_matrix_ubo->upload((void*)pvm.ptr(), sizeof(blt::mat4x4), sizeof(blt::mat4x4) * 3);
|
|
global_matrix_ubo->upload((void*)ovm.ptr(), sizeof(blt::mat4x4), sizeof(blt::mat4x4) * 4);
|
|
}
|
|
|
|
void blt::gfx::matrix_state_manager::update_perspectives(std::int32_t width, std::int32_t height, float fov, float near, float far, float ortho_near,
|
|
float ortho_far)
|
|
{
|
|
if (width != last_width || height != last_height)
|
|
{
|
|
last_width = width;
|
|
last_height = height;
|
|
|
|
perspective = blt::perspective(fov, (float)width / (float)height, near, far);
|
|
ortho = blt::ortho(0, (float)width, (float)height, 0, ortho_near, ortho_far);
|
|
}
|
|
}
|
|
|
|
const blt::mat4x4& blt::gfx::matrix_state_manager::getView() const
|
|
{
|
|
return view;
|
|
}
|
|
|
|
const blt::mat4x4& blt::gfx::matrix_state_manager::getOrtho() const
|
|
{
|
|
return ortho;
|
|
}
|
|
|
|
const blt::mat4x4& blt::gfx::matrix_state_manager::getPerspective() const
|
|
{
|
|
return perspective;
|
|
}
|
|
|
|
const blt::mat4x4& blt::gfx::matrix_state_manager::getPvm() const
|
|
{
|
|
return pvm;
|
|
}
|
|
|
|
const blt::mat4x4& blt::gfx::matrix_state_manager::getOvm() const
|
|
{
|
|
return ovm;
|
|
}
|
|
|
|
const blt::mat4x4& blt::gfx::matrix_state_manager::getView2D() const
|
|
{
|
|
return view_2d;
|
|
}
|
|
|
|
const blt::vec3& blt::gfx::matrix_state_manager::getScale2D() const
|
|
{
|
|
return scale_2d;
|
|
}
|