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-rw-r--r--libdimensionxx/Makefile.am2
-rw-r--r--libdimensionxx/cameras.cpp16
-rw-r--r--libdimensionxx/dimensionxx.hpp1
-rw-r--r--libdimensionxx/dimensionxx/cameras.hpp3
-rw-r--r--libdimensionxx/dimensionxx/gl.hpp64
-rw-r--r--libdimensionxx/dimensionxx/png.hpp2
-rw-r--r--libdimensionxx/gl.cpp72
-rw-r--r--libdimensionxx/png.cpp2
-rw-r--r--tests/Makefile.am6
-rw-r--r--tests/glxx.cpp79
-rw-r--r--tests/tests.h9
11 files changed, 251 insertions, 5 deletions
diff --git a/libdimensionxx/Makefile.am b/libdimensionxx/Makefile.am
index 9c22cd5..75287e0 100644
--- a/libdimensionxx/Makefile.am
+++ b/libdimensionxx/Makefile.am
@@ -25,6 +25,7 @@ nobase_include_HEADERS = dimensionxx.hpp \
dimensionxx/color.hpp \
dimensionxx/cookie.hpp \
dimensionxx/geometry.hpp \
+ dimensionxx/gl.hpp \
dimensionxx/object.hpp \
dimensionxx/objects.hpp \
dimensionxx/png.hpp \
@@ -41,6 +42,7 @@ libdimensionxx_la_SOURCES = $(nobase_include_HEADERS) \
camera.cpp \
cameras.cpp \
color.cpp \
+ gl.cpp \
error.cpp \
object.cpp \
objects.cpp \
diff --git a/libdimensionxx/cameras.cpp b/libdimensionxx/cameras.cpp
index fb11dcf..a7a8255 100644
--- a/libdimensionxx/cameras.cpp
+++ b/libdimensionxx/cameras.cpp
@@ -22,7 +22,7 @@
namespace Dimension
{
- // Create a sphere
+ // Create a perspective camera
Perspective_Camera::Perspective_Camera(const Matrix& trans)
: Camera(dmnsn_new_perspective_camera(trans.dmnsn()))
{
@@ -31,9 +31,21 @@ namespace Dimension
}
}
- // Delete a sphere
+ // Delete a perspective camera
Perspective_Camera::~Perspective_Camera()
{
dmnsn_delete_perspective_camera(m_camera);
}
+
+ Matrix
+ Perspective_Camera::trans()
+ {
+ return Matrix(dmnsn_get_perspective_camera_trans(m_camera));
+ }
+
+ void
+ Perspective_Camera::trans(const Matrix& trans)
+ {
+ dmnsn_set_perspective_camera_trans(m_camera, trans.dmnsn());
+ }
}
diff --git a/libdimensionxx/dimensionxx.hpp b/libdimensionxx/dimensionxx.hpp
index bc52580..b552dd3 100644
--- a/libdimensionxx/dimensionxx.hpp
+++ b/libdimensionxx/dimensionxx.hpp
@@ -31,6 +31,7 @@
#include <dimensionxx/geometry.hpp>
#include <dimensionxx/color.hpp>
#include <dimensionxx/canvas.hpp>
+#include <dimensionxx/gl.hpp>
#include <dimensionxx/png.hpp>
#include <dimensionxx/object.hpp>
#include <dimensionxx/objects.hpp>
diff --git a/libdimensionxx/dimensionxx/cameras.hpp b/libdimensionxx/dimensionxx/cameras.hpp
index 85105cb..4e67d64 100644
--- a/libdimensionxx/dimensionxx/cameras.hpp
+++ b/libdimensionxx/dimensionxx/cameras.hpp
@@ -31,6 +31,9 @@ namespace Dimension
public:
Perspective_Camera(const Matrix& trans);
virtual ~Perspective_Camera();
+
+ Matrix trans();
+ void trans(const Matrix& trans);
};
}
diff --git a/libdimensionxx/dimensionxx/gl.hpp b/libdimensionxx/dimensionxx/gl.hpp
new file mode 100644
index 0000000..ef875df
--- /dev/null
+++ b/libdimensionxx/dimensionxx/gl.hpp
@@ -0,0 +1,64 @@
+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> *
+ * *
+ * This file is part of The Dimension Library. *
+ * *
+ * The Dimension Library is free software; you can redistribute it and/ *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version. *
+ * *
+ * The Dimension Library 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 *
+ * Lesser General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU Lesser General Public *
+ * License along with this program. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+// C++ wrapper for libdimension GL support
+
+#ifndef DIMENSIONXX_GL_HPP
+#define DIMENSIONXX_GL_HPP
+
+#include <istream>
+#include <ostream>
+
+namespace Dimension
+{
+ class GL_Drawer
+ {
+ public:
+ GL_Drawer(Canvas& canvas);
+ ~GL_Drawer();
+
+ void draw();
+
+ private:
+ // Copying prohibited
+ GL_Drawer(const GL_Drawer&);
+ GL_Drawer& operator=(const GL_Drawer&);
+
+ Canvas* m_canvas;
+ bool m_drawn;
+ };
+
+ class GL_Reader
+ {
+ public:
+ // GL_Reader();
+ // ~GL_Reader();
+
+ Canvas read(unsigned int x0, unsigned int y0,
+ unsigned int width, unsigned int height);
+
+ private:
+ // Copying prohibited
+ GL_Reader(const GL_Reader&);
+ GL_Reader& operator=(const GL_Reader&);
+ };
+}
+
+#endif /* DIMENSIONXX_GL_HPP */
diff --git a/libdimensionxx/dimensionxx/png.hpp b/libdimensionxx/dimensionxx/png.hpp
index 17cb883..2b99531 100644
--- a/libdimensionxx/dimensionxx/png.hpp
+++ b/libdimensionxx/dimensionxx/png.hpp
@@ -18,7 +18,7 @@
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
-// C++ wrapper for libdimension PNG support. PNG_Canvas derives from Canvas.
+// C++ wrapper for libdimension PNG support
#ifndef DIMENSIONXX_PNG_HPP
#define DIMENSIONXX_PNG_HPP
diff --git a/libdimensionxx/gl.cpp b/libdimensionxx/gl.cpp
new file mode 100644
index 0000000..5c0a7bb
--- /dev/null
+++ b/libdimensionxx/gl.cpp
@@ -0,0 +1,72 @@
+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> *
+ * *
+ * This file is part of The Dimension Library. *
+ * *
+ * The Dimension Library is free software; you can redistribute it and/ *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version. *
+ * *
+ * The Dimension Library 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 *
+ * Lesser General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU Lesser General Public *
+ * License along with this program. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+#include "dimensionxx.hpp"
+#include <cstdio>
+
+namespace Dimension
+{
+ GL_Drawer::GL_Drawer(Canvas& canvas)
+ : m_canvas(&canvas), m_drawn(false)
+ {
+ // Optimize the canvas for GL drawing
+ dmnsn_gl_optimize_canvas(m_canvas->dmnsn());
+ }
+
+ // Draw the canvas if it hasn't been drawn yet
+ GL_Drawer::~GL_Drawer()
+ {
+ if (!m_drawn) {
+ try {
+ draw();
+ } catch (...) {
+ dmnsn_error(SEVERITY_MEDIUM,
+ "Drawing canvas to GL failed in GL_Drawer destructor.");
+ }
+ }
+ }
+
+ // Draw the canvas to the current openGL buffer
+ void GL_Drawer::draw()
+ {
+ // Draw to the GL buffer
+ if (dmnsn_gl_write_canvas(m_canvas->dmnsn()) != 0) {
+ // The drawing operation failed
+ throw Dimension_Error("Drawing canvas to GL failed.");
+ }
+
+ m_drawn = true; // Don't draw again in destructor
+ }
+
+ // Read a canvas from a GL buffer
+ Canvas
+ GL_Reader::read(unsigned int x0, unsigned int y0,
+ unsigned int width, unsigned int height)
+ {
+ // Read the canvas from the GL buffer
+ dmnsn_canvas* canvas = dmnsn_gl_read_canvas(x0, y0, width, height);
+ if (!canvas) {
+ // The read operation failed
+ throw Dimension_Error("Reading canvas from GL failed.");
+ }
+
+ return Canvas(canvas);
+ }
+}
diff --git a/libdimensionxx/png.cpp b/libdimensionxx/png.cpp
index 1f61e72..5ca8e02 100644
--- a/libdimensionxx/png.cpp
+++ b/libdimensionxx/png.cpp
@@ -58,7 +58,7 @@ namespace Dimension
FILE_Cookie cookie(*m_ostr);
// Write the PNG file
- if (dmnsn_png_write_canvas(m_canvas->dmnsn(), cookie.file())) {
+ if (dmnsn_png_write_canvas(m_canvas->dmnsn(), cookie.file()) != 0) {
// The actual write operation failed, for some reason
throw Dimension_Error("Writing canvas to PNG failed.");
}
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 6d496f6..1f3f58c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -25,7 +25,8 @@ check_PROGRAMS = warning-test \
pngxx-test \
raytrace-test \
raytracexx-test \
- gl-test
+ gl-test \
+ glxx-test
TESTS = $(check_PROGRAMS)
XFAIL_TESTS = error-test
@@ -59,3 +60,6 @@ raytracexx_test_LDADD = ./libdimensionxx-tests.la
gl_test_SOURCES = gl.c
gl_test_LDADD = ./libdimension-tests.la
+
+glxx_test_SOURCES = glxx.cpp
+glxx_test_LDADD = ./libdimension-tests.la ./libdimensionxx-tests.la
diff --git a/tests/glxx.cpp b/tests/glxx.cpp
new file mode 100644
index 0000000..1fc08c4
--- /dev/null
+++ b/tests/glxx.cpp
@@ -0,0 +1,79 @@
+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> *
+ * *
+ * This file is part of The Dimension Test Suite. *
+ * *
+ * The Dimension Test Suite 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. *
+ * *
+ * The Dimension Test Suite 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 <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+#include "tests.h"
+#include "testsxx.hpp"
+#include <fstream>
+#include <iostream>
+
+int
+main() {
+ using namespace Dimension;
+
+ // Set the resilience low for tests
+ resilience(SEVERITY_LOW);
+
+ // Background color
+ Color background = sRGB(0.0, 0.1, 0.25);
+ background.filter(0.1);
+
+ // Canvas
+ Canvas canvas(768, 480);
+
+ // Camera
+ Perspective_Camera camera(
+ Matrix::rotation(Vector(0.0, 1.0, 0.0))
+ * Matrix::translation(Vector(0.0, 0.0, -4.0))
+ * Matrix::scale(
+ Vector(static_cast<double>(canvas.width())/canvas.height(), 1.0, 1.0)
+ )
+ );
+
+ // Scene
+ Scene scene(background, camera, canvas);
+
+ // Objects in scene
+
+ Sphere sphere;
+ sphere.trans(inverse(Matrix::scale(Vector(1.25, 1.25, 1.25))));
+ scene.push_object(sphere);
+
+ Cube cube;
+ cube.trans(inverse(Matrix::rotation(Vector(0.75, 0.0, 0.0))));
+ scene.push_object(cube);
+
+ Raytracer raytracer(scene);
+ GL_Drawer drawer(scene.canvas());
+ dmnsn_display* display = dmnsn_new_display(scene.canvas().dmnsn());
+
+ // Render the scene
+ for (unsigned int i = 0; i < 10; ++i) {
+ Progress rprogress = raytracer.render_async();
+ std::cout << "Raytracing scene: " << rprogress << std::endl;
+ rprogress.finish();
+
+ drawer.draw();
+ dmnsn_display_frame(display);
+
+ cube.trans(inverse(Matrix::rotation(Vector(0.025, 0.0, 0.0)))*cube.trans());
+ camera.trans(Matrix::rotation(Vector(0.0, -0.05, 0.0))*camera.trans());
+ }
+
+ return EXIT_SUCCESS;
+}
diff --git a/tests/tests.h b/tests/tests.h
index fcb9ad9..30d4002 100644
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -22,6 +22,11 @@
#include <GL/gl.h>
#include <stdio.h>
+#ifdef __cplusplus
+/* We've been included from a C++ file; mark everything here as extern "C" */
+extern "C" {
+#endif
+
/*
* Convenience
*/
@@ -53,3 +58,7 @@ void dmnsn_display_frame(dmnsn_display *display);
/* Print a progress bar of the progress of `progress' */
void progressbar(const char *str, const dmnsn_progress *progress);
+
+#ifdef __cplusplus
+}
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 13:59:02 +0000