Merge branch 'master' of git+ssh://joukj@git.freedesktop.org/git/mesa/mesa

4 files changed, 317 insertions, 12 deletions

diff --git a/progs/demos/.gitignore b/progs/demos/.gitignore
index f764b3d117..508b8a56f4 100644
--- a/progs/demos/.gitignore
+++ b/progs/demos/.gitignore
@@ -1,17 +1,24 @@
 .cvsignore
 arbfplight
+arbfslight
 arbocclude
 bounce
 clearspd
 cubemap
 drawpix
+engine
+extfuncs.h
 fire
+fogcoord
 fplight
+fslight
 gamma
+gearbox
 gears
 geartrain
 glinfo
 gloss
+glslnoise
 gltestperf
 glutfx
 ipers
@@ -33,8 +40,11 @@ renormal
 shadowtex
 showbuffer.c
 showbuffer.h
+singlebuffer
+spriteblast
 spectex
 stex3d
+streaming_rect
 teapot
 terrain
 tessdemo
@@ -42,7 +52,10 @@ texcyl
 texdown
 texenv
 texobj
+trackball.c
+trackball.h
 trispd
 tunnel
 tunnel2
+vao_demo
 winpos
diff --git a/progs/demos/Makefile b/progs/demos/Makefile
index cf96828ed7..4d9eb30b68 100644
--- a/progs/demos/Makefile
+++ b/progs/demos/Makefile
@@ -19,6 +19,7 @@ PROGS = \
 	arbocclude \
 	bounce \
 	clearspd \
+	copypix \
 	cubemap \
 	drawpix \
 	engine \
@@ -74,7 +75,7 @@ PROGS = \
 
 # make executable from .c file:
 .c: $(LIB_DEP) readtex.o
-	$(CC) -I$(INCDIR) $(CFLAGS) $< readtex.o $(APP_LIB_DEPS) -o $@
+	$(CC) -I$(INCDIR) $(CFLAGS) $(LDFLAGS) $< readtex.o $(APP_LIB_DEPS) -o $@
 
 
 ##### TARGETS #####
@@ -118,41 +119,45 @@ extfuncs.h:  $(TOP)/progs/util/extfuncs.h
 
 
 reflect: reflect.o showbuffer.o readtex.o
-	$(CC) reflect.o showbuffer.o readtex.o $(APP_LIB_DEPS) -o $@
+	$(CC) $(LDFLAGS) reflect.o showbuffer.o readtex.o $(APP_LIB_DEPS) -o $@
 
 reflect.o: reflect.c showbuffer.h
 	$(CC) -c -I$(INCDIR) $(CFLAGS) reflect.c
 
 
 shadowtex: shadowtex.o showbuffer.o
-	$(CC) shadowtex.o showbuffer.o $(APP_LIB_DEPS) -o $@
+	$(CC) $(LDFLAGS) shadowtex.o showbuffer.o $(APP_LIB_DEPS) -o $@
 
 shadowtex.o: shadowtex.c showbuffer.h
 	$(CC) -c -I$(INCDIR) $(CFLAGS) shadowtex.c
 
 
 gloss: gloss.o trackball.o readtex.o
-	$(CC) gloss.o trackball.o readtex.o $(APP_LIB_DEPS) -o $@
+	$(CC) $(LDFLAGS) gloss.o trackball.o readtex.o $(APP_LIB_DEPS) -o $@
 
 gloss.o: gloss.c trackball.h
 	$(CC) -c -I$(INCDIR) $(CFLAGS) gloss.c
 
 
 engine: engine.o trackball.o readtex.o
-	$(CC) engine.o trackball.o readtex.o $(APP_LIB_DEPS) -o $@
+	$(CC) $(LDFLAGS) engine.o trackball.o readtex.o $(APP_LIB_DEPS) -o $@
 
 engine.o: engine.c trackball.h
 	$(CC) -c -I$(INCDIR) $(CFLAGS) engine.c
 
 
 fslight: fslight.o
-	$(CC) fslight.o $(APP_LIB_DEPS) -o $@
+	$(CC) $(LDFLAGS) fslight.o $(APP_LIB_DEPS) -o $@
 
 fslight.o: fslight.c extfuncs.h
 	$(CC) -c -I$(INCDIR) $(CFLAGS) fslight.c
 
 
 
+viewdds: viewdds.c
+	$(CC) -I$(INCDIR) $(CFLAGS) $< readtex.o $(APP_LIB_DEPS) -L. -lgltc -o $@
+
+
 clean:
 	-rm -f $(PROGS)
 	-rm -f *.o *~
diff --git a/progs/demos/copypix.c b/progs/demos/copypix.c
new file mode 100644
index 0000000000..15001e851b
--- /dev/null
+++ b/progs/demos/copypix.c
@@ -0,0 +1,248 @@
+/**
+ * glCopyPixels test
+ * 
+ * Brian Paul
+ * 14 Sep 2007
+ */
+
+
+#define GL_GLEXT_PROTOTYPES
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/glut.h>
+
+#include "readtex.h"
+
+#define IMAGE_FILE "../images/arch.rgb"
+
+static int ImgWidth, ImgHeight;
+static GLenum ImgFormat;
+static GLubyte *Image = NULL;
+
+static int WinWidth = 800, WinHeight = 800;
+static int Xpos, Ypos;
+static int Scissor = 0;
+static float Xzoom, Yzoom;
+static GLboolean DrawFront = GL_FALSE;
+static GLboolean Dither = GL_TRUE;
+
+
+static void Reset( void )
+{
+   Xpos = Ypos = 20;
+   Scissor = 0;
+   Xzoom = Yzoom = 1.0;
+}
+
+
+static void Display( void )
+{
+   const int dx = (WinWidth - ImgWidth) / 2;
+   const int dy = (WinHeight - ImgHeight) / 2;
+
+   if (DrawFront) {
+      glDrawBuffer(GL_FRONT);
+      glReadBuffer(GL_FRONT);
+   }
+   else {
+      glDrawBuffer(GL_BACK);
+      glReadBuffer(GL_BACK);
+   }
+
+   glClear( GL_COLOR_BUFFER_BIT );
+
+   /* draw original image */
+   glWindowPos2iARB(dx, dy);                    
+   glDrawPixels(ImgWidth, ImgHeight, ImgFormat, GL_UNSIGNED_BYTE, Image);
+
+   if (Scissor)
+      glEnable(GL_SCISSOR_TEST);
+
+   /* draw copy */
+   glPixelZoom(Xzoom, Yzoom);
+   glWindowPos2iARB(Xpos, Ypos);
+   glCopyPixels(dx, dy, ImgWidth, ImgHeight, GL_COLOR);
+   glPixelZoom(1, 1);
+
+   glDisable(GL_SCISSOR_TEST);
+
+   if (DrawFront)
+      glFinish();
+   else
+      glutSwapBuffers();
+}
+
+
+static void Reshape( int width, int height )
+{
+   WinWidth = width;
+   WinHeight = height;
+
+   glViewport( 0, 0, width, height );
+   glMatrixMode( GL_PROJECTION );
+   glLoadIdentity();
+   glOrtho( 0.0, width, 0.0, height, 0.0, 2.0 );
+   glMatrixMode( GL_MODELVIEW );
+   glLoadIdentity();
+
+   glScissor(width/4, height/4, width/2, height/2);
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+   (void) x;
+   (void) y;
+   switch (key) {
+      case ' ':
+         Reset();
+         break;
+      case 'd':
+         Dither = !Dither;
+         if (Dither)
+            glEnable(GL_DITHER);
+         else
+            glDisable(GL_DITHER);
+         break;
+      case 's':
+         Scissor = !Scissor;
+         break;
+      case 'x':
+         Xzoom -= 0.1;
+         break;
+      case 'X':
+         Xzoom += 0.1;
+         break;
+      case 'y':
+         Yzoom -= 0.1;
+         break;
+      case 'Y':
+         Yzoom += 0.1;
+         break;
+      case 'f':
+         DrawFront = !DrawFront;
+         printf("glDrawBuffer(%s)\n", DrawFront ? "GL_FRONT" : "GL_BACK");
+         break;
+      case 27:
+         exit(0);
+         break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void SpecialKey( int key, int x, int y )
+{
+   const int step = (glutGetModifiers() & GLUT_ACTIVE_SHIFT) ? 10 : 1;
+   (void) x;
+   (void) y;
+   switch (key) {
+      case GLUT_KEY_UP:
+         Ypos += step;
+         break;
+      case GLUT_KEY_DOWN:
+         Ypos -= step;
+         break;
+      case GLUT_KEY_LEFT:
+         Xpos -= step;
+         break;
+      case GLUT_KEY_RIGHT:
+         Xpos += step;
+         break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void Init( GLboolean ciMode, const char *filename )
+{
+   printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   Image = LoadRGBImage( filename, &ImgWidth, &ImgHeight, &ImgFormat );
+   if (!Image) {
+      printf("Couldn't read %s\n", filename);
+      exit(0);
+   }
+
+   if (ciMode) {
+      /* Convert RGB image to grayscale */
+      GLubyte *indexImage = (GLubyte *) malloc( ImgWidth * ImgHeight );
+      GLint i;
+      for (i=0; i<ImgWidth*ImgHeight; i++) {
+         int gray = Image[i*3] + Image[i*3+1] + Image[i*3+2];
+         indexImage[i] = gray / 3;
+      }
+      free(Image);
+      Image = indexImage;
+      ImgFormat = GL_COLOR_INDEX;
+
+      for (i=0;i<255;i++) {
+         float g = i / 255.0;
+         glutSetColor(i, g, g, g);
+      }
+   }
+
+   printf("Loaded %d by %d image\n", ImgWidth, ImgHeight );
+
+   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+   glPixelStorei(GL_UNPACK_ROW_LENGTH, ImgWidth);
+
+   Reset();
+}
+
+
+static void Usage(void)
+{
+   printf("Keys:\n");
+   printf("       SPACE  Reset Parameters\n");
+   printf("     Up/Down  Move image up/down (SHIFT for large step)\n");
+   printf("  Left/Right  Move image left/right (SHIFT for large step)\n");
+   printf("           x  Decrease X-axis PixelZoom\n");
+   printf("           X  Increase X-axis PixelZoom\n");
+   printf("           y  Decrease Y-axis PixelZoom\n");
+   printf("           Y  Increase Y-axis PixelZoom\n");
+   printf("           s  Toggle GL_SCISSOR_TEST\n");
+   printf("           f  Toggle front/back buffer drawing\n");
+   printf("         ESC  Exit\n");
+}
+
+
+int main( int argc, char *argv[] )
+{
+   GLboolean ciMode = GL_FALSE;
+   const char *filename = IMAGE_FILE;
+   int i = 1;
+
+   if (argc > i && strcmp(argv[i], "-ci")==0) {
+      ciMode = GL_TRUE;
+      i++;
+   }
+   if (argc > i) {
+      filename = argv[i];
+   }
+
+   glutInit( &argc, argv );
+   glutInitWindowPosition( 0, 0 );
+   glutInitWindowSize( WinWidth, WinHeight );
+
+   if (ciMode)
+      glutInitDisplayMode( GLUT_INDEX | GLUT_DOUBLE );
+   else
+      glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE);
+
+   glutCreateWindow(argv[0]);
+
+   Init(ciMode, filename);
+   Usage();
+
+   glutReshapeFunc( Reshape );
+   glutKeyboardFunc( Key );
+   glutSpecialFunc( SpecialKey );
+   glutDisplayFunc( Display );
+
+   glutMainLoop();
+   return 0;
+}
diff --git a/progs/demos/cubemap.c b/progs/demos/cubemap.c
index ef5d235550..b3bdd64f68 100644
--- a/progs/demos/cubemap.c
+++ b/progs/demos/cubemap.c
@@ -47,6 +47,8 @@ static GLfloat Xrot = 0, Yrot = 0;
 static GLfloat EyeDist = 10;
 static GLboolean use_vertex_arrays = GL_FALSE;
 static GLboolean anim = GL_TRUE;
+static GLboolean NoClear = GL_FALSE;
+static GLint FrameParity = 0;
 
 #define eps1 0.99
 #define br   20.0  /* box radius */
@@ -156,7 +158,30 @@ static void draw_skybox( void )
 
 static void draw( void )
 {
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+   if (NoClear) {
+      /* This demonstrates how we can avoid calling glClear.
+       * This method only works if every pixel in the window is painted for
+       * every frame.
+       * We can simply skip clearing of the color buffer in this case.
+       * For the depth buffer, we alternately use a different subrange of
+       * the depth buffer for each frame.  For the odd frame use the range
+       * [0, 0.5] with GL_LESS.  For the even frames, use the range [1, 0.5]
+       * with GL_GREATER.
+       */
+      FrameParity = 1 - FrameParity;
+      if (FrameParity) {
+         glDepthRange(0.0, 0.5);
+         glDepthFunc(GL_LESS);
+      }
+      else {
+         glDepthRange(1.0, 0.5);
+         glDepthFunc(GL_GREATER);
+      }      
+   }
+   else {
+      /* ordinary clearing */
+      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+   }
 
    glPushMatrix(); /*MODELVIEW*/
       glTranslatef( 0.0, 0.0, -EyeDist );
@@ -452,6 +477,24 @@ static void usage(void)
 }
 
 
+static void parse_args(int argc, char *argv[])
+{
+   int initFlag = 0;
+   int i;
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-i") == 0)
+         initFlag = 1;
+      else if (strcmp(argv[i], "--noclear") == 0)
+         NoClear = GL_TRUE;
+      else {
+         fprintf(stderr, "Bad option: %s\n", argv[i]);
+         exit(1);
+      }
+   }
+   init (initFlag);
+}
+
 int main( int argc, char *argv[] )
 {
    glutInit(&argc, argv);
@@ -459,17 +502,13 @@ int main( int argc, char *argv[] )
    glutInitWindowSize(600, 500);
    glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
    glutCreateWindow("Texture Cube Mapping");
-
-   if (argc > 1 && strcmp(argv[1] , "-i") == 0)
-      init( 1 );
-   else
-      init( 0 );
    glutReshapeFunc( reshape );
    glutKeyboardFunc( key );
    glutSpecialFunc( specialkey );
    glutDisplayFunc( draw );
    if (anim)
       glutIdleFunc(idle);
+   parse_args(argc, argv);
    usage();
    glutMainLoop();
    return 0;