RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 23:38:12 +00:00
Code Issues Activity Actions

LibGL: Implement glLoadMatrixd

Browse source
This commit is contained in:
Jelle Raaijmakers 2021-12-01 16:46:55 +01:00 • committed by Andreas Kling
parent 506abf2a61
commit 22f8294a57
2 changed files with 33 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

41
Userland/Libraries/LibGL/GLMat.cpp
View file

@ -1,10 +1,12 @@
/*
* Copyright (c) 2021, Jesse Buhagiar <jooster669@gmail.com>
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
* Copyright (c) 2021, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "AK/Array.h"
#include "GL/gl.h"
#include "GLContext.h"
@ -38,25 +40,46 @@ void glPopMatrix()
/*
* Transposes input matrices (column-major) to our Matrix (row-major).
*/
template<typename T>
static constexpr Matrix4x4<T> transpose_input_matrix(T const* matrix)
template<typename I, typename O>
static constexpr Matrix4x4<O> transpose_input_matrix(I const* matrix)
{
if constexpr (IsSame<I, O>) {
// clang-format off
return {
matrix[0], matrix[4], matrix[8], matrix[12],
matrix[1], matrix[5], matrix[9], matrix[13],
matrix[2], matrix[6], matrix[10], matrix[14],
matrix[3], matrix[7], matrix[11], matrix[15],
};
// clang-format on
}
Array<O, 16> elements;
for (size_t i = 0; i < 16; ++i)
elements[i] = static_cast<O>(matrix[i]);
// clang-format off
return {
matrix[0], matrix[4], matrix[8], matrix[12],
matrix[1], matrix[5], matrix[9], matrix[13],
matrix[2], matrix[6], matrix[10], matrix[14],
matrix[3], matrix[7], matrix[11], matrix[15],
elements[0], elements[4], elements[8], elements[12],
elements[1], elements[5], elements[9], elements[13],
elements[2], elements[6], elements[10], elements[14],
elements[3], elements[7], elements[11], elements[15],
};
// clang-format on
}
void glMultMatrixf(GLfloat const* matrix)
{
g_gl_context->gl_mult_matrix(transpose_input_matrix<float>(matrix));
g_gl_context->gl_mult_matrix(transpose_input_matrix<float, float>(matrix));
}
void glLoadMatrixf(const GLfloat* matrix)
void glLoadMatrixd(GLdouble const* matrix)
{
g_gl_context->gl_load_matrix(transpose_input_matrix<float>(matrix));
g_gl_context->gl_load_matrix(transpose_input_matrix<double, float>(matrix));
}
void glLoadMatrixf(GLfloat const* matrix)
{
g_gl_context->gl_load_matrix(transpose_input_matrix<float, float>(matrix));
}
void glLoadIdentity()