fix: add opengl metadata

Makefile.dev

@@ -39,7 +39,6 @@ build-no-video:
 		-lm -lGL -lglfw -lasound \
 		-Wall -Wextra \
 		-Wno-format-truncation \
-		-Wno-unused-parameter \
 		-DGLFW_INCLUDE_NONE \
 		-DGLFW_NATIVE_INCLUDE_NONE \
 		-DLOG_USE_COLOR \

PKGBUILD

@@ -1,12 +1,12 @@
 pkgname=forge-steel
-pkgver=1.2.1
+pkgver=1.2.4
 pkgrel=1
 pkgdesc="Fusion Of Real Time Generative Effects"
 arch=('i686' 'pentium4' 'x86_64' 'arm' 'armv7h' 'armv6h' 'aarch64' 'riscv64')
 depends=('glfw>=1:3', 'v4l-utils>=1.32', 'alsa-lib>=1.2', 'libglvnd>=1.7')
 url="https://git.klemek.fr/klemek/forge-steel"
 source=("${pkgname}-steel-${pkgver}.tar.gz::https://git.klemek.fr/klemek/forge-steel/releases/download/v${pkgver}/${pkgname}-${pkgver}.tar.gz")
-sha256sums=('57559bde7a524e3c9e70de4bc9b675a5a086590a8d85697cebd80c0ebd09f149')
+sha256sums=('a34c7f8101d8d947e26bee1fa5ab8d87f4292014e5ef17d03eb34fefb387db9e')
 srcdir=build
 backup=("usr/share/${pkgname}")
 

configure.ac

@@ -1,4 +1,4 @@
-AC_INIT([forge], [steel-1.2.1], [klemek.dev@proton.me])
+AC_INIT([forge], [steel-1.2.4], [klemek.dev@proton.me])
 AM_INIT_AUTOMAKE
 AC_PROG_CC
 

default/forge_project.cfg

@@ -279,9 +279,9 @@ GROUP_3_2_Z=11089
 ARI_COUNT=62
 ARI_1=GROUP_3_1_Y
 ARI_2=GROUP_3_2_Z
-ARI_3=GROUP_2_5_4
-ARI_4=GROUP_2_5_4
-ARI_5=GROUP_2_5_4
+ARI_3=GROUP_2_5_X_4
+ARI_4=GROUP_2_5_Y_4
+ARI_5=GROUP_2_5_Z_4
 ARI_6=GROUP_2_2_X_4
 ARI_7=GROUP_2_2_Y_4
 ARI_8=GROUP_2_2_Z_4
@@ -294,9 +294,9 @@ ARI_14=GROUP_2_6_Z_4
 ARI_15=GROUP_2_7_X_4
 ARI_16=GROUP_2_7_Y_4
 ARI_17=GROUP_2_7_Z_4
-ARI_18=GROUP_2_5_5
-ARI_19=GROUP_2_5_5
-ARI_20=GROUP_2_5_5
+ARI_18=GROUP_2_5_X_5
+ARI_19=GROUP_2_5_Y_5
+ARI_20=GROUP_2_5_Z_5
 ARI_21=GROUP_2_2_X_5
 ARI_22=GROUP_2_2_Y_5
 ARI_23=GROUP_2_2_Z_5
@@ -309,9 +309,9 @@ ARI_29=GROUP_2_6_Z_5
 ARI_30=GROUP_2_7_X_5
 ARI_31=GROUP_2_7_Y_5
 ARI_32=GROUP_2_7_Z_5
-ARI_33=GROUP_2_5_6
-ARI_34=GROUP_2_5_6
-ARI_35=GROUP_2_5_6
+ARI_33=GROUP_2_5_X_6
+ARI_34=GROUP_2_5_Y_6
+ARI_35=GROUP_2_5_Z_6
 ARI_36=GROUP_2_2_X_6
 ARI_37=GROUP_2_2_Y_6
 ARI_38=GROUP_2_2_Z_6
@@ -324,9 +324,9 @@ ARI_44=GROUP_2_6_Z_6
 ARI_45=GROUP_2_7_X_6
 ARI_46=GROUP_2_7_Y_6
 ARI_47=GROUP_2_7_Z_6
-ARI_48=GROUP_2_5_7
-ARI_49=GROUP_2_5_7
-ARI_50=GROUP_2_5_7
+ARI_48=GROUP_2_5_X_7
+ARI_49=GROUP_2_5_Y_7
+ARI_50=GROUP_2_5_Z_7
 ARI_51=GROUP_2_2_X_7
 ARI_52=GROUP_2_2_Y_7
 ARI_53=GROUP_2_2_Z_7

include/glad/gl.h

@@ -1,11 +1,11 @@
 /**
- * Loader generated by glad 2.0.8 on Wed May 13 21:57:23 2026
+ * Loader generated by glad 2.0.8 on Thu Aug 27 15:42:48 2026
  *
  * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0
  *
  * Generator: C/C++
  * Specification: gl
- * Extensions: 4
+ * Extensions: 5
  *
  * APIs:
  *  - gl:compatibility=4.6
@@ -19,10 +19,10 @@
  *  - ON_DEMAND = False
  *
  * Commandline:
- *    --api='gl:compatibility=4.6' --extensions='GL_ARB_direct_state_access,GL_EXT_EGL_image_storage,GL_EXT_direct_state_access,GL_KHR_debug' c --header-only --loader
+ *    --api='gl:compatibility=4.6' --extensions='GL_ARB_arrays_of_arrays,GL_ARB_direct_state_access,GL_EXT_EGL_image_storage,GL_EXT_direct_state_access,GL_KHR_debug' c --header-only --loader
  *
  * Online:
- *    http://glad.sh/#api=gl%3Acompatibility%3D4.6&extensions=GL_ARB_direct_state_access%2CGL_EXT_EGL_image_storage%2CGL_EXT_direct_state_access%2CGL_KHR_debug&generator=c&options=HEADER_ONLY%2CLOADER
+ *    http://glad.sh/#api=gl%3Acompatibility%3D4.6&extensions=GL_ARB_arrays_of_arrays%2CGL_ARB_direct_state_access%2CGL_EXT_EGL_image_storage%2CGL_EXT_direct_state_access%2CGL_KHR_debug&generator=c&options=HEADER_ONLY%2CLOADER
  *
  */
 
@@ -2403,6 +2403,8 @@ GLAD_API_CALL int GLAD_GL_VERSION_4_4;
 GLAD_API_CALL int GLAD_GL_VERSION_4_5;
 #define GL_VERSION_4_6 1
 GLAD_API_CALL int GLAD_GL_VERSION_4_6;
+#define GL_ARB_arrays_of_arrays 1
+GLAD_API_CALL int GLAD_GL_ARB_arrays_of_arrays;
 #define GL_ARB_direct_state_access 1
 GLAD_API_CALL int GLAD_GL_ARB_direct_state_access;
 #define GL_EXT_EGL_image_storage 1
@@ -6395,6 +6397,7 @@ int GLAD_GL_VERSION_4_3 = 0;
 int GLAD_GL_VERSION_4_4 = 0;
 int GLAD_GL_VERSION_4_5 = 0;
 int GLAD_GL_VERSION_4_6 = 0;
+int GLAD_GL_ARB_arrays_of_arrays = 0;
 int GLAD_GL_ARB_direct_state_access = 0;
 int GLAD_GL_EXT_EGL_image_storage = 0;
 int GLAD_GL_EXT_direct_state_access = 0;
@@ -9290,6 +9293,7 @@ static int glad_gl_find_extensions_gl(void) {
     char **exts_i = NULL;
     if (!glad_gl_get_extensions(&exts, &exts_i)) return 0;
 
+    GLAD_GL_ARB_arrays_of_arrays = glad_gl_has_extension(exts, exts_i, "GL_ARB_arrays_of_arrays");
     GLAD_GL_ARB_direct_state_access = glad_gl_has_extension(exts, exts_i, "GL_ARB_direct_state_access");
     GLAD_GL_EXT_EGL_image_storage = glad_gl_has_extension(exts, exts_i, "GL_EXT_EGL_image_storage");
     GLAD_GL_EXT_direct_state_access = glad_gl_has_extension(exts, exts_i, "GL_EXT_direct_state_access");
@@ -9571,3 +9575,4 @@ void gladLoaderUnloadGL(void) {
 #endif
 
 #endif /* GLAD_GL_IMPLEMENTATION */
+

src/args.c

@@ -11,6 +11,9 @@
 #include "config.h"
 #include "string.h"
 
+#define STR_IMPL_(x) #x     // stringify argument
+#define STR(x) STR_IMPL_(x) // indirection to expand argument macros
+
 static void print_help(int status_code) {
   puts(
       PACKAGE
@@ -42,6 +45,12 @@ static void print_help(int status_code) {
       "[-mr / -nmr] "
       "[-tm] "
       "[-tf] "
+      "[--x11] "
+      "[--wayland] "
+      "[--cocoa] "
+      "[--win32] "
+      "[-oma=MAJOR] "
+      "[-omi=MINOR] "
       "\n\n"
       "Fusion Of Real-time Generative Effects.\n\n"
       "options:\n"
@@ -81,7 +90,17 @@ static void print_help(int status_code) {
       "  -mr, --midi-reconnect       auto-reconnect midi (default)\n"
       "  -nmr, --no-midi-reconnect   do not auto-reconnect midi\n"
       "  -tm, --trace-midi           print midi code and values\n"
-      "  -tf, --trace-fps            print fps status of subsystems\n");
+      "  -tf, --trace-fps            print fps status of subsystems\n"
+      "  --x11                       force X11 GLFW backend\n"
+      "  --wayland                   force Wayland GLFW backend\n"
+      "  --cocoa                     force Cocoa GLFW backend\n"
+      "  --win32                     force Win32 GLFW backend\n"
+      "  -oma, --opengl-major-version      OpenGL major version "
+      "(default: " STR(
+          OPENGL_MAJOR_VERSION) ")\n"
+                                "  -omi, --opengl-minor-version      OpenGL "
+                                "minor version (default: " STR(
+                                    OPENGL_MINOR_VERSION) ")\n");
   exit(status_code);
 }
 
@@ -152,6 +171,9 @@ void args_parse(Parameters *params, int argc, char **argv) {
   params->midi_reconnect = true;
   params->trace_midi = false;
   params->trace_fps = false;
+  params->glfw_backend = GLFW_BACKEND_ANY;
+  params->opengl_major = OPENGL_MAJOR_VERSION;
+  params->opengl_minor = OPENGL_MINOR_VERSION;
 
   for (int i = 1; i < argc; i++) {
     arg = argv[i];
@@ -220,6 +242,24 @@ void args_parse(Parameters *params, int argc, char **argv) {
       params->trace_midi = true;
     } else if (is_arg(arg, "-tf") || is_arg(arg, "--trace-fps")) {
       params->trace_fps = true;
+    } else if (is_arg(arg, "--x11")) {
+      params->glfw_backend = GLFW_BACKEND_X11;
+    } else if (is_arg(arg, "--wayland")) {
+      params->glfw_backend = GLFW_BACKEND_WAYLAND;
+    } else if (is_arg(arg, "--cocoa")) {
+      params->glfw_backend = GLFW_BACKEND_COCOA;
+    } else if (is_arg(arg, "--win32")) {
+      params->glfw_backend = GLFW_BACKEND_WIN32;
+    } else if (is_arg(arg, "-oma") || is_arg(arg, "--opengl-major-version")) {
+      params->opengl_major = parse_uint(arg, value);
+      if (params->opengl_major == 0) {
+        invalid_value(arg, value);
+      }
+    } else if (is_arg(arg, "-omi") || is_arg(arg, "--opengl-minor-version")) {
+      params->opengl_minor = parse_uint(arg, value);
+      if (params->opengl_major == 0) {
+        invalid_value(arg, value);
+      }
     } else {
 #ifdef VIDEO_IN
       if (is_arg(arg, "-vi") || is_arg(arg, "--video-in")) {

src/config.h

@@ -87,4 +87,23 @@
 #define MAX_TAP_VALUES 10
 #endif
 
+/* OPENGL */
+
+#ifndef OPENGL_MAJOR_VERSION
+#define OPENGL_MAJOR_VERSION 4
+#endif
+
+#ifndef OPENGL_MINOR_VERSION
+#define OPENGL_MINOR_VERSION 6
+#endif
+
+/* GLFW CONSTANTS */
+#ifndef GLFW_BACKENDS
+#define GLFW_BACKEND_ANY 0
+#define GLFW_BACKEND_X11 1
+#define GLFW_BACKEND_WAYLAND 2
+#define GLFW_BACKEND_COCOA 3
+#define GLFW_BACKEND_WIN32 4
+#endif
+
 #endif /* CONFIG_H */

src/constants.h

@@ -4,9 +4,9 @@
 #define CONSTANTS_H
 
 static const char *vertex_shader_text =
-    "#version 460\n"
+    "#version 140\n"
     "const mat4 mvp = "
-    "{{2.,0.,0.,0.},{0.,2.,0.,0.},{0.,0.,2.,0.},{-1.,-1.,1.,1.}};\n"
+    "mat4(vec4(2.,0.,0.,0.),vec4(0.,2.,0.,0.),vec4(0.,0.,2.,0.),vec4(-1.,-1.,1.,1.));\n"
     "in vec2 vPos;\n"
     "out vec2 vUV;\n"
     "void main()\n"

src/forge.c

@@ -286,14 +286,15 @@ static bool init(const Parameters *params) {
 
   start_state_background_write();
 
-  window_startup(error_callback);
+  window_startup(error_callback, params->glfw_backend);
 
   context.tex_resolution[0] = params->internal_size;
   context.tex_resolution[1] = params->internal_size;
 
   if (params->output) {
     window_output = window_init(PACKAGE " " VERSION, params->output_screen,
-                                params->windowed, NULL, key_callback);
+                                params->windowed, params->opengl_major,
+                                params->opengl_minor, NULL, key_callback);
 
     window_use(window_output, &context);
 
@@ -305,7 +306,8 @@ static bool init(const Parameters *params) {
   if (params->monitor) {
     window_monitor =
         window_init(PACKAGE " " VERSION " (monitor)", params->monitor_screen,
-                    params->windowed, window_output, key_callback);
+                    params->windowed, params->opengl_major,
+                    params->opengl_minor, window_output, key_callback);
 
     window_use(window_monitor, &context);
 

src/shaders.c

@@ -60,7 +60,7 @@ static void gl_debug_callback(GLenum source, GLenum type, GLuint id,
 
 #endif /* GL_DEBUG */
 
-static bool check_eglerror_ro(const char *context) {
+static bool check_eglerror_ro(__attribute__((unused)) const char *context) {
 #ifdef VIDEO_IN
   unsigned int code;
 
@@ -105,6 +105,13 @@ static bool init_gl(ShaderProgram *program) {
   glDebugMessageCallback(gl_debug_callback, NULL);
 #endif /* GL_DEBUG */
 
+  // print OpenGL info
+  log_info("[OpenGL] Vendor: %s", glGetString(GL_VENDOR));
+  log_info("[OpenGL] Renderer: %s", glGetString(GL_RENDERER));
+  log_info("[OpenGL] Version: %s", glGetString(GL_VERSION));
+  log_info("[OpenGL] Shading language: %s",
+           glGetString(GL_SHADING_LANGUAGE_VERSION));
+
 #ifdef VIDEO_IN
   program->egl_display = glfwGetEGLDisplay();
   if (program->egl_display == EGL_NO_DISPLAY) {

src/types.h

@@ -58,6 +58,9 @@ typedef struct Parameters {
   bool midi_reconnect;
   bool trace_midi;
   bool trace_fps;
+  unsigned int glfw_backend;
+  unsigned int opengl_major;
+  unsigned int opengl_minor;
 } Parameters;
 
 // file.c

src/window.c

@@ -7,7 +7,8 @@
 
 #include "window.h"
 
-static void init_glfw(void (*error_callback)(int, const char *)) {
+static void init_glfw(void (*error_callback)(int, const char *),
+                      const unsigned int backend) {
   log_info("[GLFW] Initializing...");
 
   // set errors handler
@@ -16,6 +17,30 @@ static void init_glfw(void (*error_callback)(int, const char *)) {
   // print current GLFW version
   log_info("[GLFW] %s", glfwGetVersionString());
 
+  switch (backend) {
+#ifdef GLFW_PLATFORM
+  case GLFW_BACKEND_X11:
+    glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_X11);
+    log_info("[GLFW] platform: X11");
+    break;
+  case GLFW_BACKEND_WAYLAND:
+    glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_WAYLAND);
+    log_info("[GLFW] platform: Wayland");
+    break;
+  case GLFW_BACKEND_COCOA:
+    glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_COCOA);
+    log_info("[GLFW] platform: Cocoa");
+    break;
+  case GLFW_BACKEND_WIN32:
+    glfwInitHint(GLFW_PLATFORM, GLFW_BACKEND_WIN32);
+    log_info("[GLFW] platform: Win32");
+    break;
+#endif /* GLFW_PLATFORM */
+  default:
+    log_info("[GLFW] platform: Any");
+    break;
+  }
+
   // init GLFW
   if (!glfwInit()) {
     log_error("[GLFW] Initialization failed");
@@ -44,7 +69,9 @@ static GLFWmonitor *get_monitor(unsigned char monitor_index) {
 }
 
 static GLFWwindow *
-create_window(GLFWmonitor *monitor, const char *title, Window *shared_context,
+create_window(GLFWmonitor *monitor, const char *title,
+              const unsigned int opengl_major, const unsigned int opengl_minor,
+              Window *shared_context,
               void (*key_callback)(Window *, int, int, int, int)) {
   GLFWwindow *window;
 
@@ -57,12 +84,14 @@ create_window(GLFWmonitor *monitor, const char *title, Window *shared_context,
   glfwWindowHint(GLFW_FOCUS_ON_SHOW, GLFW_FALSE);
 
   // Context related hints
-  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
-  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, opengl_major);
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, opengl_minor);
 #ifdef GL_DEBUG
   glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
 #endif
+  if (opengl_major > 4 || (opengl_major == 3 && opengl_minor >= 2)) {
     glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+  }
 
   // create fullscreen window in selected monitor
   window = glfwCreateWindow(1, 1, title, monitor, shared_context);
@@ -86,8 +115,9 @@ create_window(GLFWmonitor *monitor, const char *title, Window *shared_context,
 
 static void use_window(GLFWwindow *window) { glfwMakeContextCurrent(window); }
 
-void window_startup(void (*error_callback)(int, const char *)) {
-  init_glfw(error_callback);
+void window_startup(void (*error_callback)(int, const char *),
+                    const unsigned int backend) {
+  init_glfw(error_callback, backend);
 }
 
 void window_terminate() {
@@ -96,17 +126,21 @@ void window_terminate() {
 }
 
 Window *window_init(const char *title, unsigned char monitor_index,
-                    bool windowed, Window *shared_context,
+                    bool windowed, const unsigned int opengl_major,
+                    const unsigned int opengl_minor, Window *shared_context,
                     void (*key_callback)(Window *, int, int, int, int)) {
   GLFWwindow *window;
   GLFWmonitor *monitor;
 
   monitor = windowed ? NULL : get_monitor(monitor_index);
 
-  window = create_window(monitor, title, shared_context, key_callback);
+  window = create_window(monitor, title, opengl_major, opengl_minor,
+                         shared_context, key_callback);
 
   use_window(window);
 
+  glfwSwapInterval(0);
+
   return window;
 }
 

src/window.h

@@ -3,12 +3,13 @@
 #ifndef WINDOW_H
 #define WINDOW_H
 
-void window_startup(void (*error_callback)(int, const char *));
+void window_startup(void (*error_callback)(int, const char *), const unsigned int backend);
 
 void window_terminate();
 
 Window *window_init(const char *title, unsigned char monitor_index,
-                    bool windowed, Window *shared_context,
+                    bool windowed,  const unsigned int opengl_major,
+                    const unsigned int opengl_minor, Window *shared_context,
                     void (*key_callback)(Window *, int, int, int, int));
 
 void window_update_title(Window *window, const char *title);