Avoid the need to hard-reset the Dreamcast to exit the samples - use the start button in all samples

samples/blend_test/main.c

@@ -4,6 +4,10 @@
  * output and incorrect depth testing
  */
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -42,6 +46,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 void DrawQuad(const float* colour) {
     glBegin(GL_QUADS);
@@ -98,6 +119,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/depth_funcs/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -34,6 +38,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 void DrawSquare(float width, float r, float g, float b, float z) {
     width /= 2;
@@ -113,6 +134,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/depth_funcs_alpha_testing/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -94,6 +98,24 @@ void DrawGLScene()
     glKosSwapBuffers();
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
+
 int main(int argc, char **argv)
 {
     glKosInit();
@@ -104,6 +126,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
     DrawGLScene();
     while(1) {
+      if(check_start())
+        break;
+
       DrawGLScene();
     }
 

samples/depth_funcs_ortho/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -48,6 +52,24 @@ void DrawSquare(float width, float r, float g, float b, float z) {
     glEnd();					// done with the polygon
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
+
 /* The main drawing function. */
 void DrawGLScene()
 {
@@ -77,6 +99,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/lerabot01/main.c

@@ -3,6 +3,10 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -199,6 +203,24 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
+
 void DrawTexturedQuad(int tex, float x, float y, float z)
 {
   GLfloat texW = 10;
@@ -303,6 +325,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/lerabot_blend_test/main.c

@@ -4,6 +4,10 @@
  * output and incorrect depth testing
  */
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -42,6 +46,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 void DrawQuad(const float* colour) {
     glBegin(GL_QUADS);
@@ -99,6 +120,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/lights/main.c

@@ -2,6 +2,10 @@
 #include <stdlib.h>
 #include <stdint.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glext.h"
@@ -213,6 +217,24 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
+
 void DrawCube(float x, float z) {
     static float pos = 0.0f;
     const static float radius = 30.0f;
@@ -307,6 +329,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/mipmap/main.c

@@ -2,6 +2,10 @@
 #include <stdlib.h>
 #include <stdint.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glext.h"
@@ -175,6 +179,24 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
+
 void DrawQuad() {
     glBegin(GL_QUADS);
     glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 0.0f);	// Bottom Left Of The Texture and Quad
@@ -238,6 +260,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/multitexture_arrays/main.c

@@ -11,6 +11,10 @@
 #include <stdlib.h>
 #include <stdint.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -41,6 +45,23 @@ GLfloat TEXCOORD_ARRAY[4 * 2] = { 0, 0,
 
 GLuint ARGB_ARRAY[4] = { 0xFFFF0000, 0xFF0000FF, 0xFF00FF00, 0xFFFFFF00 };
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* Multi-Texture Example using Open GL Vertex Buffer Submission. */
 void RenderCallback(GLuint texID0, GLuint texID1) {
@@ -119,6 +140,9 @@ int main(int argc, char **argv) {
     GLuint texID1 = glTextureLoadPVR(IMAGE2_FILENAME, 0, 0);
 
     while(1) {
+        if(check_start())
+            break;
+
         /* Draw the "scene" */
         RenderCallback(texID0, texID1);
 

samples/nehe02/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -34,6 +38,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -116,6 +137,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/nehe02de/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -36,6 +40,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -87,6 +108,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/nehe02va/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -36,6 +40,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -79,6 +100,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/nehe03/main.c

@@ -1,3 +1,6 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
 
 #include "GL/gl.h"
 #include "GL/glu.h"
@@ -35,6 +38,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -77,6 +97,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/nehe04/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -37,6 +41,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -87,6 +108,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/nehe05/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -37,6 +41,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -140,6 +161,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/nehe06/main.c

@@ -3,6 +3,10 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glext.h"
@@ -178,6 +182,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -249,6 +270,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/nehe06_4444twid/main.c

@@ -2,6 +2,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -194,6 +198,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -265,6 +286,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/nehe06_vq/main.c

@@ -1,6 +1,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -200,6 +204,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -271,6 +292,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/ortho2d/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -35,6 +39,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -60,6 +81,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/paletted/main.c

@@ -3,6 +3,10 @@
 #include <stdlib.h>
 #include <stdint.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glext.h"
 #include "GL/glu.h"
@@ -163,6 +167,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -234,6 +255,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/paletted_pcx/main.c

@@ -4,6 +4,10 @@
 #include <stdint.h>
 #include <assert.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glext.h"
@@ -233,6 +237,24 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
+
 void DrawPolygon() {
     glBegin(GL_QUADS);		                // begin drawing a cube
 
@@ -343,6 +365,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/polygon_offset/main.c

@@ -1,4 +1,3 @@
-
 typedef enum
 {
     false,
@@ -99,7 +98,7 @@ void drawPolygon()
     glEnd();
 }
 int frames = 0;
-void check_input()
+int check_input()
 {
 #ifdef __DREAMCAST__
     maple_device_t *cont;
@@ -113,9 +112,12 @@ void check_input()
 
         if (state)
         {
+            if (state->buttons & CONT_START)
+                return 0;
+
             if (frames <= 0)
             {
-                if (state->buttons & CONT_START)
+                if (state->buttons & CONT_A)
                 {
                     offset = !offset;
                     frames = 60;
@@ -124,6 +126,8 @@ void check_input()
         }
     }
 #endif
+
+    return 1;
 }
 
 /* The main drawing function. */
@@ -211,7 +215,8 @@ int main(int argc, char **argv)
 
     while (1)
     {
-        check_input();
+        if(!check_input())
+            break;
         DrawGLScene();
         xrot += 0.1f;
         yrot += 0.25f;

samples/scissor/main.c

@@ -1,3 +1,7 @@
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -38,6 +42,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -119,6 +140,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/terrain/main.c

@@ -1,6 +1,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -91,6 +95,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 /* The main drawing function. */
 void DrawGLScene()
@@ -135,6 +156,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/zclip/main.c

@@ -3,6 +3,10 @@
 #include <stdlib.h>
 #include <stdint.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glext.h"
@@ -171,6 +175,23 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
 
 void RenderTower(counter) {
     counter = counter % 3;
@@ -314,6 +335,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/zclip_triangle/main.c

@@ -2,6 +2,10 @@
 #include <string.h>
 #include <stdlib.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -41,6 +45,24 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
+
 /* The main drawing function. */
 void DrawGLScene()
 {
@@ -96,6 +118,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }
 

samples/zclip_trianglestrip/main.c

@@ -2,6 +2,10 @@
 #include <string.h>
 #include <stdlib.h>
 
+#ifdef __DREAMCAST__
+#include <kos.h>
+#endif
+
 #include "GL/gl.h"
 #include "GL/glu.h"
 #include "GL/glkos.h"
@@ -41,6 +45,24 @@ void ReSizeGLScene(int Width, int Height)
     glMatrixMode(GL_MODELVIEW);
 }
 
+int check_start() {
+#ifdef __DREAMCAST__
+    maple_device_t *cont;
+    cont_state_t *state;
+
+    cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
+
+    if(cont) {
+        state = (cont_state_t *)maple_dev_status(cont);
+
+        if(state)
+            return state->buttons & CONT_START;
+    }
+#endif
+
+    return 0;
+}
+
 /* The main drawing function. */
 void DrawGLScene()
 {
@@ -105,6 +127,9 @@ int main(int argc, char **argv)
     ReSizeGLScene(640, 480);
 
     while(1) {
+        if(check_start())
+            break;
+
         DrawGLScene();
     }