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LibGL: Impement glLoadMatrixf and underlying function

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This commit is contained in:
Jesse Buhagiar 2021-04-24 22:43:42 +10:00 • committed by Andreas Kling
parent ea0df0b5da
commit f07a7f7b94
5 changed files with 32 additions and 0 deletions
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1
Userland/Libraries/LibGL/GL/gl.h
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@ -79,6 +79,7 @@ GLAPI void glFrustum(GLdouble left, GLdouble right, GLdouble bottom, GLdouble to
GLAPI GLenum glGetError();
GLAPI GLubyte* glGetString(GLenum name);
GLAPI void glLoadIdentity();
GLAPI void glLoadMatrixf(const GLfloat* matrix);
GLAPI void glMatrixMode(GLenum mode);
GLAPI void glPushMatrix();
GLAPI void glPopMatrix();

2
Userland/Libraries/LibGL/GLContext.h
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@ -9,6 +9,7 @@
#include "GL/gl.h"
#include <AK/OwnPtr.h>
#include <LibGfx/Matrix4x4.h>
namespace GL {
@ -25,6 +26,7 @@ public:
virtual GLenum gl_get_error() = 0;
virtual GLubyte* gl_get_string(GLenum name) = 0;
virtual void gl_load_identity() = 0;
virtual void gl_load_matrix(const FloatMatrix4x4& matrix) = 0;
virtual void gl_matrix_mode(GLenum mode) = 0;
virtual void gl_push_matrix() = 0;
virtual void gl_pop_matrix() = 0;

11
Userland/Libraries/LibGL/GLMat.cpp
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@ -35,6 +35,17 @@ void glPopMatrix()
g_gl_context->gl_pop_matrix();
}
void glLoadMatrixf(const GLfloat* matrix)
{
FloatMatrix4x4 mat(
matrix[0], matrix[1], matrix[2], matrix[3],
matrix[4], matrix[5], matrix[6], matrix[7],
matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
g_gl_context->gl_load_matrix(mat);
}
void glLoadIdentity()
{
g_gl_context->gl_load_identity();

17
Userland/Libraries/LibGL/SoftwareGLContext.cpp
View file

@ -494,6 +494,23 @@ void SoftwareGLContext::gl_load_identity()
m_error = GL_NO_ERROR;
}
void SoftwareGLContext::gl_load_matrix(const FloatMatrix4x4& matrix)
{
if (m_in_draw_state) {
m_error = GL_INVALID_OPERATION;
return;
}
if (m_current_matrix_mode == GL_PROJECTION)
m_projection_matrix = matrix;
else if (m_current_matrix_mode == GL_MODELVIEW)
m_model_view_matrix = matrix;
else
VERIFY_NOT_REACHED();
m_error = GL_NO_ERROR;
}
void SoftwareGLContext::gl_matrix_mode(GLenum mode)
{
if (m_in_draw_state) {

1
Userland/Libraries/LibGL/SoftwareGLContext.h
View file

@ -25,6 +25,7 @@ public:
virtual GLenum gl_get_error() override;
virtual GLubyte* gl_get_string(GLenum name) override;
virtual void gl_load_identity() override;
virtual void gl_load_matrix(const FloatMatrix4x4& matrix) override;
virtual void gl_matrix_mode(GLenum mode) override;
virtual void gl_push_matrix() override;
virtual void gl_pop_matrix() override;