reprap: Compatibility with OSX

The shader now works on both platform
Removed the .bin file, made sure it never happends again

Signed-off-by: Michel Pollet <buserror@gmail.com>

diff --git a/examples/board_reprap/.gitignore b/examples/board_reprap/.gitignore
new file mode 100644 (file)
index 0000000..a8a0dce
--- /dev/null
+++ b/examples/board_reprap/.gitignore
@@ -0,0 +1 @@
+*.bin

diff --git a/examples/board_reprap/Makefile b/examples/board_reprap/Makefile
index 50b4e3b..51fd468 100644 (file)
--- a/examples/board_reprap/Makefile
+++ b/examples/board_reprap/Makefile
@@ -72,4 +72,6 @@ ${target}:  build-libc3 ${board}
 
 clean: clean-${OBJ}
        rm -rf *.a *.axf ${target} *.vcd
+       $(MAKE) -C $(LIBC3) CC="$(CC)" CFLAGS="$(CFLAGS)" clean
+       
 

diff --git a/examples/board_reprap/gfx/postproc.fs b/examples/board_reprap/gfx/postproc.fs
index 49de3fd..f74ab7c 100644 (file)
--- a/examples/board_reprap/gfx/postproc.fs
+++ b/examples/board_reprap/gfx/postproc.fs
@@ -1,11 +1,12 @@
-#version 120
+
+#if (GLSL_VERSION == 120)
+#extension GL_EXT_gpu_shader4 : enable
+#endif
 
 // References:
 // http://www.geeks3d.com/20110405/fxaa-fast-approximate-anti-aliasing-demo-glsl-opengl-test-radeon-geforce/3/
 // http://jmonkeyengine.googlecode.com/svn-history/r9095/trunk/engine/src/core-data/Common/MatDefs/Post/
 
-#extension GL_EXT_gpu_shader4 : enable
-
 uniform sampler2D m_Texture;
 uniform vec2 g_Resolution = vec2(800,600);
 
@@ -17,9 +18,13 @@ varying vec2 texCoord;
 varying vec4 posPos;
 
 #define FxaaTex(t, p) texture2D(t, p)
-
-    #define OffsetVec(a, b) ivec2(a, b)
+#define OffsetVec(a, b) ivec2(a, b)
+#if (GLSL_VERSION == 120)
     #define FxaaTexOff(t, p, o, r) texture2DLodOffset(t, p, 0.0, o)
+#endif
+#if (GLSL_VERSION == 130)
+    #define FxaaTexOff(t, p, o, r) textureLodOffset(t, p, 0.0, o)
+#endif
 
 vec3 FxaaPixelShader(
   vec4 posPos,   // Output of FxaaVertexShader interpolated across screen.

diff --git a/examples/board_reprap/gfx/postproc.vs b/examples/board_reprap/gfx/postproc.vs
index 1031ee1..fb69cfd 100644 (file)
--- a/examples/board_reprap/gfx/postproc.vs
+++ b/examples/board_reprap/gfx/postproc.vs
@@ -1,4 +1,4 @@
-#version 120
+
 //uniform mat4 g_WorldViewProjectionMatrix;
 uniform vec2 g_Resolution = vec2(800,600);
 uniform float m_SubPixelShift = 1.0 / 4.0;

diff --git a/examples/board_reprap/reprap_flash.bin b/examples/board_reprap/reprap_flash.bin
deleted file mode 100644 (file)
index c97c12f..0000000
Binary files a/examples/board_reprap/reprap_flash.bin and /dev/null differ

diff --git a/examples/board_reprap/src/reprap_gl.c b/examples/board_reprap/src/reprap_gl.c
index 1d66cbd..48e43ca 100644 (file)
--- a/examples/board_reprap/src/reprap_gl.c
+++ b/examples/board_reprap/src/reprap_gl.c
@@ -52,9 +52,10 @@ int _w = 800, _h = 600;
 c3context_p c3;
 c3context_p hud;
 c3object_p head;
-
 c3texture_p fbo_c3;
 
+int glsl_version = 110;
+
 extern reprap_t reprap;
 
 static int dumpError(const char * what)
@@ -187,9 +188,17 @@ static GLuint create_shader(const char * fname, GLuint pid)
        fseek(f, 0, SEEK_END);
        long fs = ftell(f);
        fseek(f, 0, SEEK_SET);
-       buf = malloc(fs + 1);
-       fread((void*)buf, 1, fs, f);
-       ((char*)buf)[fs] = 0;
+       /*
+        * need to insert a header since there is nothing to detect the version number
+        * reliably without it, and __VERSION__ returns idiocy
+        */
+       char head[128];
+       sprintf(head, "#version %d\n#define GLSL_VERSION %d\n", glsl_version, glsl_version);
+       const int header = strlen(head);
+       buf = malloc(header + fs + 1);
+       memcpy((void*)buf, head, header);
+       fread((void*)buf + header, 1, fs, f);
+       ((char*)buf)[header + fs] = 0;
        fclose(f);
 
        GLuint vs = glCreateShader(pid);
@@ -463,21 +472,20 @@ _c3_z_sorter(
        return d1 < d2 ? 1 : d1 > d2 ? -1 : 0;
 }
 
-#define FBO 0
+#define FBO 1
 
 static void
 _gl_display_cb(void)           /* function called whenever redisplay needed */
 {
 #if FBO
-       if (program_postproc) {
-               /*
-                * Draw in FBO object
-                */
-               glBindFramebuffer(GL_FRAMEBUFFER, fbo);
-               // draw (without glutSwapBuffers)
-               dumpError("glBindFramebuffer fbo");
-               glViewport(0, 0, _w, _h);
-       }
+       /*
+        * Draw in FBO object
+        */
+       glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+       // draw (without glutSwapBuffers)
+       dumpError("glBindFramebuffer fbo");
+       glViewport(0, 0, _w, _h);
+
 #else
        glBindFramebuffer(GL_FRAMEBUFFER, 0);
 #endif
@@ -490,7 +498,7 @@ _gl_display_cb(void)                /* function called whenever redisplay needed */
        c3transform_set(head->transform.e[0], &headmove);
 
        if (c3->root->dirty) {
-               printf("reproject head %.2f,%.2f,%.2f\n", headp.x, headp.y,headp.z);
+       //      printf("reproject head %.2f,%.2f,%.2f\n", headp.x, headp.y,headp.z);
                c3context_project(c3);
 
                z_min = 1000000000;
@@ -548,31 +556,14 @@ _gl_display_cb(void)              /* function called whenever redisplay needed */
        glBindFramebuffer(GL_FRAMEBUFFER, 0);
        dumpError("glBindFramebuffer 0");
 
+       glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
+       glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+#endif
        glDisable(GL_DEPTH_TEST);
        glDisable(GL_LIGHTING);
        glDisable(GL_ALPHA_TEST);
 
-       glMatrixMode(GL_PROJECTION); // Select projection matrix
-       glLoadIdentity(); // Start with an identity matrix
-
-       glClearColor(1.0f, 1.0f, 1.0f, 0.0f);
-       glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-       glMatrixMode(GL_MODELVIEW); // Select modelview matrix
-       glLoadIdentity(); // Start with an identity matrix
-
-#if 0
-       glEnable(GL_TEXTURE_2D);
-       glBindTexture(GL_TEXTURE_2D, fbo_texture);
-       dumpError("glBindTexture fbo");
-#if 0
-       glUseProgram(program_postproc);
-       dumpError("glUseProgram program_postproc");
-       glUniform1i(uniform_fbo_texture, /*GL_TEXTURE*/0);
-#endif
        glUseProgram(0);
-#endif
-#endif
 
        glMatrixMode(GL_PROJECTION); // Select projection matrix
        glLoadIdentity(); // Start with an identity matrix
@@ -636,10 +627,6 @@ _gl_motion_cb(
 
        switch (button) {
                case GLUT_LEFT_BUTTON: {
-
-//                     c3mat4 rotx = rotation3D(c3vec3f(1.0, 0, 0), delta.n[1] / 4);
-//                     c3mat4 roty = rotation3D(c3vec3f(0.0, 0.0, 1.0), delta.n[0] / 4);
-
                        c3mat4 rotx = rotation3D(c3->cam.side, delta.n[1] / 4);
                        c3mat4 roty = rotation3D(c3vec3f(0.0, 0.0, 1.0), delta.n[0] / 4);
                        rotx = c3mat4_mul(&rotx, &roty);
@@ -703,10 +690,8 @@ gl_init(
        // set material properties which will be assigned by glColor
        glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);
 
-
+       /* setup some lights */
        glShadeModel(GL_SMOOTH);
-#if 1
-//     glEnable(GL_DEPTH_TEST);
        glEnable(GL_LIGHTING);
        GLfloat global_ambient[] = { 0.5f, 0.5f, 0.5f, 1.0f };
        glLightModelfv(GL_LIGHT_MODEL_AMBIENT, global_ambient);
@@ -725,7 +710,19 @@ gl_init(
                glLightfv(GL_LIGHT0, GL_POSITION, position);
                glEnable(GL_LIGHT0);
        }
-#endif
+
+       /*
+        * Extract the GLSL version as a nuneric value for later
+        */
+       const char * glsl = (const char *)glGetString(GL_SHADING_LANGUAGE_VERSION);
+       {
+               int M = 0, m = 0;
+               if (sscanf(glsl, "%d.%d", &M, &m) == 2)
+                       glsl_version = (M * 100) + m;
+
+       }
+       printf("GL_SHADING_LANGUAGE_VERSION %s = %d\n", glsl, glsl_version);
+
        gl_offscreenInit(_w, _h);
        gl_ppProgram();
 
@@ -865,7 +862,7 @@ gl_init(
     /*
      * This is the offscreen framebuffer where the 3D scene is drawn
      */
-    if (program_postproc) {
+    if (FBO) {
        c3texture_p b = c3texture_new(hud->root);
 
        c3pixels_p dst = c3pixels_new(_w, _h, 4, _w * 4, NULL);

diff --git a/examples/shared/libc3/Makefile b/examples/shared/libc3/Makefile
index 25ab1db..7f4320f 100644 (file)
--- a/examples/shared/libc3/Makefile
+++ b/examples/shared/libc3/Makefile
@@ -14,9 +14,15 @@ C3OBJ                = ${patsubst src/%,${OBJ}/%,${C3SRC:.c=.lo}}
 
 CC                     = clang
 PKGCONFIG      = pkg-config
-LIBTOOL                = libtool
 INSTALL                = install
 
+ifeq (${shell uname}, Darwin)
+# you need to install libtool via 'brew install libtool' on the mac
+LIBTOOL                = glibtool
+else
+LIBTOOL                = libtool
+endif
+
 CFLAGS         = -g -O2
 CPPFLAGS       += --std=gnu99 -fPIC
 CPPFLAGS       += ${patsubst %,-I%,${subst :, ,${IPATH}}}

diff --git a/examples/shared/libc3/src/c3cairo.c b/examples/shared/libc3/src/c3cairo.c
index 390a5c3..a2b1655 100644 (file)
--- a/examples/shared/libc3/src/c3cairo.c
+++ b/examples/shared/libc3/src/c3cairo.c
@@ -52,8 +52,8 @@ const c3driver_geometry_t c3cairo_base_driver = {
        .dispose = _c3cairo_dispose,
        .project = _c3cairo_project,
 };
-const c3driver_geometry_t c3texture_driver;
-const c3driver_geometry_t c3geometry_driver;
+extern const c3driver_geometry_t c3texture_driver;
+extern const c3driver_geometry_t c3geometry_driver;
 
 c3cairo_p
 c3cairo_new(

diff --git a/examples/shared/libc3/src/c3texture.c b/examples/shared/libc3/src/c3texture.c
index 9d9d427..78a8d20 100644 (file)
--- a/examples/shared/libc3/src/c3texture.c
+++ b/examples/shared/libc3/src/c3texture.c
@@ -75,7 +75,7 @@ const c3driver_geometry_t c3texture_driver = {
                .dispose = _c3texture_dispose,
                .project = _c3texture_project,
 };
-const c3driver_geometry_t c3geometry_driver;
+extern const c3driver_geometry_t c3geometry_driver;
 
 c3texture_p
 c3texture_new(