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-rw-r--r--progs/demos/.gitignore13
-rw-r--r--progs/demos/Makefile5
-rw-r--r--progs/demos/copypix.c248
-rw-r--r--progs/demos/cubemap.c51
-rw-r--r--progs/demos/geartrain.c1
-rw-r--r--progs/demos/gltestperf.c1
-rw-r--r--progs/demos/isosurf.c1
-rw-r--r--progs/demos/morph3d.c9
-rw-r--r--progs/demos/spriteblast.c22
-rw-r--r--progs/demos/winpos.c1
-rw-r--r--progs/fbdev/glfbdevtest.c105
-rw-r--r--progs/glsl/Makefile9
-rw-r--r--progs/glsl/bitmap.c368
-rw-r--r--progs/glsl/points.c305
-rw-r--r--progs/glsl/trirast.c326
-rw-r--r--progs/osdemos/ostest1.c7
-rw-r--r--progs/samples/Makefile.mgw22
-rw-r--r--progs/tests/Makefile1
-rw-r--r--progs/tests/random.c457
-rw-r--r--progs/util/extfuncs.h19
-rw-r--r--progs/xdemos/Makefile22
-rw-r--r--progs/xdemos/glxgears.c13
-rw-r--r--progs/xdemos/glxswapcontrol.c5
-rw-r--r--progs/xdemos/offset.c34
-rw-r--r--progs/xdemos/pbdemo.c9
25 files changed, 1975 insertions, 79 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..7bfcefd02d 100644
--- a/progs/demos/Makefile
+++ b/progs/demos/Makefile
@@ -19,6 +19,7 @@ PROGS = \
arbocclude \
bounce \
clearspd \
+ copypix \
cubemap \
drawpix \
engine \
@@ -153,6 +154,10 @@ fslight.o: fslight.c extfuncs.h
+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;
diff --git a/progs/demos/geartrain.c b/progs/demos/geartrain.c
index 3feb2a0524..8363f2abc6 100644
--- a/progs/demos/geartrain.c
+++ b/progs/demos/geartrain.c
@@ -1053,6 +1053,7 @@ main (int argc, char *argv[])
else
file = argv[1];
+ glutInit(&argc, argv);
glutInitWindowPosition (0, 0);
glutInitWindowSize(640,480);
glutInitDisplayMode (GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
diff --git a/progs/demos/gltestperf.c b/progs/demos/gltestperf.c
index be95390101..2188b02419 100644
--- a/progs/demos/gltestperf.c
+++ b/progs/demos/gltestperf.c
@@ -569,6 +569,7 @@ main(int ac, char **av)
if (ac == 2)
frontbuffer = 0;
+ glutInit(&ac, av);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowPosition(0, 0);
glutInitWindowSize(640, 480);
diff --git a/progs/demos/isosurf.c b/progs/demos/isosurf.c
index 0710bc6047..10f94b6ace 100644
--- a/progs/demos/isosurf.c
+++ b/progs/demos/isosurf.c
@@ -1042,6 +1042,7 @@ int main(int argc, char **argv)
read_surface( "isosurf.dat" );
+ glutInit( &argc, argv);
glutInitWindowPosition(0, 0);
glutInitWindowSize(400, 400);
diff --git a/progs/demos/morph3d.c b/progs/demos/morph3d.c
index 162a6ff847..6aca8270ff 100644
--- a/progs/demos/morph3d.c
+++ b/progs/demos/morph3d.c
@@ -826,7 +826,7 @@ static void pinit(void)
}
-static void INIT(void)
+int main(int argc, char **argv)
{
printf("Morph 3D - Shows morphing platonic polyhedra\n");
printf("Author: Marcelo Fernandes Vianna (vianna@cat.cbpf.br)\n\n");
@@ -841,6 +841,7 @@ static void INIT(void)
object=1;
+ glutInit(&argc, argv);
glutInitWindowPosition(0,0);
glutInitWindowSize(640,480);
@@ -888,9 +889,3 @@ static void INIT(void)
glutMainLoop();
}
-
-int main(int argc, char **argv)
-{
- INIT();
- return(0);
-}
diff --git a/progs/demos/spriteblast.c b/progs/demos/spriteblast.c
index f0d3d0dfd4..5ad8e4d9a9 100644
--- a/progs/demos/spriteblast.c
+++ b/progs/demos/spriteblast.c
@@ -333,13 +333,13 @@ menu(int option)
smooth = 0;
break;
case 10:
- glPointSize(4.0);
+ glPointSize(16.0);
break;
case 11:
- glPointSize(8.0);
+ glPointSize(32.0);
break;
case 12:
- glPointSize(16.0);
+ glPointSize(64.0);
break;
case 13:
spin = 1 - spin;
@@ -411,19 +411,19 @@ key(unsigned char c, int x, int y)
glutPostRedisplay();
break;
case '1':
- glPointSize(2.0);
+ glPointSize(16.0);
glutPostRedisplay();
break;
case '2':
- glPointSize(4.0);
+ glPointSize(32.0);
glutPostRedisplay();
break;
case '3':
- glPointSize(8.0);
+ glPointSize(64.0);
glutPostRedisplay();
break;
case '4':
- glPointSize(16.0);
+ glPointSize(128.0);
glutPostRedisplay();
break;
case 27:
@@ -526,9 +526,9 @@ main(int argc, char **argv)
glutAddMenuEntry("Threshold 10", 7);
glutAddMenuEntry("Point smooth on", 8);
glutAddMenuEntry("Point smooth off", 9);
- glutAddMenuEntry("Point size 4", 10);
- glutAddMenuEntry("Point size 8", 11);
- glutAddMenuEntry("Point size 16", 12);
+ glutAddMenuEntry("Point size 16", 10);
+ glutAddMenuEntry("Point size 32", 11);
+ glutAddMenuEntry("Point size 64", 12);
glutAddMenuEntry("Toggle spin", 13);
glutAddMenuEntry("200 points ", 14);
glutAddMenuEntry("500 points ", 15);
@@ -544,7 +544,7 @@ main(int argc, char **argv)
glEnable(GL_DEPTH_TEST);
glEnable(GL_POINT_SMOOTH);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glPointSize(16.0);
+ glPointSize(32.0);
#ifdef GL_ARB_point_parameters
glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, theQuad);
#endif
diff --git a/progs/demos/winpos.c b/progs/demos/winpos.c
index 3a1a19ecdb..b58e330864 100644
--- a/progs/demos/winpos.c
+++ b/progs/demos/winpos.c
@@ -100,6 +100,7 @@ static void init( void )
int main( int argc, char *argv[] )
{
+ glutInit(&argc, argv);
glutInitWindowPosition(0, 0);
glutInitWindowSize(500, 500);
glutInitDisplayMode( GLUT_RGB );
diff --git a/progs/fbdev/glfbdevtest.c b/progs/fbdev/glfbdevtest.c
index a461c55e2f..6d9f807030 100644
--- a/progs/fbdev/glfbdevtest.c
+++ b/progs/fbdev/glfbdevtest.c
@@ -23,11 +23,21 @@
#include <GL/glfbdev.h>
#include <math.h>
-#define DEFAULT_DEPTH 8
+
+/**
+ * Choose one of these modes
+ */
+/*static const int XRes = 1280, YRes = 1024, Hz = 75;*/
+/*static const int XRes = 1280, YRes = 1024, Hz = 70;*/
+/*static const int XRes = 1280, YRes = 1024, Hz = 60;*/
+static const int XRes = 1024, YRes = 768, Hz = 70;
+
+static int DesiredDepth = 32;
+
+static int NumFrames = 100;
static struct fb_fix_screeninfo FixedInfo;
static struct fb_var_screeninfo VarInfo, OrigVarInfo;
-static int DesiredDepth = 0;
static int OriginalVT = -1;
static int ConsoleFD = -1;
static int FrameBufferFD = -1;
@@ -227,7 +237,6 @@ initialize_fbdev( void )
VarInfo = OrigVarInfo;
/* set the depth, resolution, etc */
- DesiredDepth = 32;
if (DesiredDepth)
VarInfo.bits_per_pixel = DesiredDepth;
@@ -251,16 +260,60 @@ initialize_fbdev( void )
VarInfo.blue.length = 8;
VarInfo.transp.length = 8;
}
- /* timing values taken from /etc/fb.modes (1280x1024 @ 75Hz) */
- VarInfo.xres_virtual = VarInfo.xres = 1280;
- VarInfo.yres_virtual = VarInfo.yres = 1024;
- VarInfo.pixclock = 7408;
- VarInfo.left_margin = 248;
- VarInfo.right_margin = 16;
- VarInfo.upper_margin = 38;
- VarInfo.lower_margin = 1;
- VarInfo.hsync_len = 144;
- VarInfo.vsync_len = 3;
+
+ /* timing values taken from /etc/fb.modes */
+ if (XRes == 1280 && YRes == 1024) {
+ VarInfo.xres_virtual = VarInfo.xres = XRes;
+ VarInfo.yres_virtual = VarInfo.yres = YRes;
+ if (Hz == 75) {
+ VarInfo.pixclock = 7408;
+ VarInfo.left_margin = 248;
+ VarInfo.right_margin = 16;
+ VarInfo.upper_margin = 38;
+ VarInfo.lower_margin = 1;
+ VarInfo.hsync_len = 144;
+ VarInfo.vsync_len = 3;
+ }
+ else if (Hz == 70) {
+ VarInfo.pixclock = 7937;
+ VarInfo.left_margin = 216;
+ VarInfo.right_margin = 80;
+ VarInfo.upper_margin = 36;
+ VarInfo.lower_margin = 1;
+ VarInfo.hsync_len = 112;
+ VarInfo.vsync_len = 5;
+ }
+ else if (Hz == 60) {
+ VarInfo.pixclock = 9260;
+ VarInfo.left_margin = 248;
+ VarInfo.right_margin = 48;
+ VarInfo.upper_margin = 38;
+ VarInfo.lower_margin = 1;
+ VarInfo.hsync_len = 112;
+ VarInfo.vsync_len = 3;
+ }
+ else {
+ fprintf(stderr, "invalid rate for 1280x1024\n");
+ exit(1);
+ }
+ }
+ else if (XRes == 1024 && YRes == 768 && Hz == 70) {
+ VarInfo.xres_virtual = VarInfo.xres = XRes;
+ VarInfo.yres_virtual = VarInfo.yres = YRes;
+ if (Hz == 70) {
+ VarInfo.pixclock = 13334;
+ VarInfo.left_margin = 144;
+ VarInfo.right_margin = 24;
+ VarInfo.upper_margin = 29;
+ VarInfo.lower_margin = 3;
+ VarInfo.hsync_len = 136;
+ VarInfo.vsync_len = 6;
+ }
+ else {
+ fprintf(stderr, "invalid rate for 1024x768\n");
+ exit(1);
+ }
+ }
VarInfo.xoffset = 0;
VarInfo.yoffset = 0;
@@ -338,7 +391,7 @@ initialize_fbdev( void )
printf("MMIOAddress = %p\n", MMIOAddress);
/* try out some simple MMIO register reads */
- if (1)
+ if (0)
{
typedef unsigned int CARD32;
typedef unsigned char CARD8;
@@ -452,6 +505,7 @@ gltest( void )
GLFBDevVisualPtr vis;
int bytes, r, g, b, a;
float ang;
+ int i;
printf("GLFBDEV_VENDOR = %s\n", glFBDevGetString(GLFBDEV_VENDOR));
printf("GLFBDEV_VERSION = %s\n", glFBDevGetString(GLFBDEV_VERSION));
@@ -491,13 +545,17 @@ gltest( void )
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
- for (ang = 0; ang <= 180; ang += 15) {
+ printf("Drawing %d frames...\n", NumFrames);
+
+ ang = 0.0;
+ for (i = 0; i < NumFrames; i++) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(ang, 1, 0, 0);
doughnut(1, 3, 40, 20);
glPopMatrix();
glFBDevSwapBuffers(buf);
+ ang += 15.0;
}
/* clean up */
@@ -510,12 +568,29 @@ gltest( void )
}
+static void
+parse_args(int argc, char *argv[])
+{
+ int i;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-f") == 0) {
+ NumFrames = atoi(argv[i+1]);
+ i++;
+ }
+ }
+}
+
+
int
main( int argc, char *argv[] )
{
signal(SIGUSR1, signal_handler); /* exit if someone tries a vt switch */
signal(SIGSEGV, signal_handler); /* catch segfaults */
+ parse_args(argc, argv);
+
+ printf("Setting mode to %d x %d @ %d Hz, %d bpp\n", XRes, YRes, Hz, DesiredDepth);
initialize_fbdev();
gltest();
shutdown_fbdev();
diff --git a/progs/glsl/Makefile b/progs/glsl/Makefile
index 37fa312c30..a9800c5414 100644
--- a/progs/glsl/Makefile
+++ b/progs/glsl/Makefile
@@ -8,13 +8,16 @@ INCDIR = $(TOP)/include
LIB_DEP = $(TOP)/$(LIB_DIR)/$(GL_LIB_NAME) $(TOP)/$(LIB_DIR)/$(GLU_LIB_NAME) $(TOP)/$(LIB_DIR)/$(GLUT_LIB_NAME)
PROGS = \
+ bitmap \
brick \
bump \
deriv \
mandelbrot \
noise \
+ points \
+ texdemo1 \
toyball \
- texdemo1
+ trirast
##### RULES #####
@@ -48,12 +51,16 @@ readtex.h: $(TOP)/progs/util/readtex.h
readtex.o: readtex.c readtex.h
$(CC) -c -I$(INCDIR) $(CFLAGS) readtex.c
+bitmap.c: extfuncs.h
+
brick.c: extfuncs.h
bump.c: extfuncs.h
mandelbrot.c: extfuncs.h
+points.c: extfuncs.h
+
toyball.c: extfuncs.h
texdemo1: texdemo1.o readtex.o
diff --git a/progs/glsl/bitmap.c b/progs/glsl/bitmap.c
new file mode 100644
index 0000000000..4b62686cbf
--- /dev/null
+++ b/progs/glsl/bitmap.c
@@ -0,0 +1,368 @@
+/**
+ * Implement glRasterPos + glBitmap with textures + shaders.
+ * Brian Paul
+ * 14 May 2007
+ */
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <GL/gl.h>
+#include <GL/glut.h>
+#include <GL/glext.h>
+#include "extfuncs.h"
+
+
+static GLuint FragShader;
+static GLuint VertShader;
+static GLuint Program;
+
+static GLint Win = 0;
+static GLint WinWidth = 500, WinHeight = 500;
+static GLboolean Anim = GL_TRUE;
+static GLboolean Bitmap = GL_FALSE;
+static GLfloat Xrot = 20.0f, Yrot = 70.0f;
+static GLint uTex, uScale;
+static GLuint Textures[2];
+
+#define TEX_WIDTH 16
+#define TEX_HEIGHT 8
+
+
+static void
+BitmapText(const char *s)
+{
+ while (*s) {
+ glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
+ s++;
+ }
+}
+
+
+static void
+Redisplay(void)
+{
+ static const GLfloat px[3] = { 1.2, 0, 0};
+ static const GLfloat nx[3] = {-1.2, 0, 0};
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(Xrot, 1.0f, 0.0f, 0.0f);
+ glRotatef(Yrot, 0.0f, 1.0f, 0.0f);
+
+ glEnable(GL_LIGHTING);
+
+ glPushMatrix();
+ glScalef(0.5, 0.5, 0.5);
+ glutSolidDodecahedron();
+ glPopMatrix();
+
+ glDisable(GL_LIGHTING);
+
+ glColor3f(0, 1, 0);
+ glBegin(GL_LINES);
+ glVertex3f(-1, 0, 0);
+ glVertex3f( 1, 0, 0);
+ glEnd();
+
+ glColor3f(1, 1, 0);
+
+ if (Bitmap) {
+ glRasterPos3fv(px);
+ BitmapText("+X");
+ glRasterPos3fv(nx);
+ BitmapText("-X");
+ }
+ else {
+ glUseProgram_func(Program);
+
+ /* vertex positions (deltas) depend on texture size and window size */
+ if (uScale != -1) {
+ glUniform2f_func(uScale,
+ 2.0 * TEX_WIDTH / WinWidth,
+ 2.0 * TEX_HEIGHT / WinHeight);
+ }
+
+ /* draw +X */
+ glBindTexture(GL_TEXTURE_2D, Textures[0]);
+ glBegin(GL_QUADS);
+ glTexCoord2f(0, 0); glVertex3fv(px);
+ glTexCoord2f(1, 0); glVertex3fv(px);
+ glTexCoord2f(1, 1); glVertex3fv(px);
+ glTexCoord2f(0, 1); glVertex3fv(px);
+ glEnd();
+
+ /* draw -X */
+ glBindTexture(GL_TEXTURE_2D, Textures[1]);
+ glBegin(GL_QUADS);
+ glTexCoord2f(0, 0); glVertex3fv(nx);
+ glTexCoord2f(1, 0); glVertex3fv(nx);
+ glTexCoord2f(1, 1); glVertex3fv(nx);
+ glTexCoord2f(0, 1); glVertex3fv(nx);
+ glEnd();
+
+ glUseProgram_func(0);
+ }
+
+ glPopMatrix();
+
+ glutSwapBuffers();
+}
+
+
+static void
+Idle(void)
+{
+ Yrot = glutGet(GLUT_ELAPSED_TIME) * 0.01;
+ glutPostRedisplay();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ WinWidth = width;
+ WinHeight = height;
+ glViewport(0, 0, width, height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0f, 0.0f, -10.0f);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ (void) x;
+ (void) y;
+
+ switch(key) {
+ case ' ':
+ case 'a':
+ Anim = !Anim;
+ if (Anim)
+ glutIdleFunc(Idle);
+ else
+ glutIdleFunc(NULL);
+ break;
+ case 'b':
+ Bitmap = !Bitmap;
+ if (Bitmap)
+ printf("Using glBitmap\n");
+ else
+ printf("Using billboard texture\n");
+ break;
+ case 27:
+ glDeleteShader_func(FragShader);
+ glDeleteShader_func(VertShader);
+ glDeleteProgram_func(Program);
+ glutDestroyWindow(Win);
+ exit(0);
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+SpecialKey(int key, int x, int y)
+{
+ const GLfloat step = 0.125f;
+ switch(key) {
+ case GLUT_KEY_UP:
+ Xrot -= step;
+ break;
+ case GLUT_KEY_DOWN:
+ Xrot += step;
+ break;
+ case GLUT_KEY_LEFT:
+ Yrot -= step;
+ break;
+ case GLUT_KEY_RIGHT:
+ Yrot += step;
+ break;
+ }
+ /*printf("Xrot: %f Yrot: %f\n", Xrot, Yrot);*/
+ glutPostRedisplay();
+}
+
+
+static void
+MakeTexImage(const char *p, GLuint texobj)
+{
+ GLubyte image[TEX_HEIGHT][TEX_WIDTH];
+ GLuint i, j, k;
+
+ for (i = 0; i < TEX_HEIGHT; i++) {
+ for (j = 0; j < TEX_WIDTH; j++) {
+ k = i * TEX_WIDTH + j;
+ if (p[k] == ' ') {
+ image[i][j] = 0;
+ }
+ else {
+ image[i][j] = 255;
+ }
+ }
+ }
+
+ glBindTexture(GL_TEXTURE_2D, texobj);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_INTENSITY, TEX_WIDTH, TEX_HEIGHT, 0,
+ GL_RED, GL_UNSIGNED_BYTE, image);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+}
+
+
+static void
+MakeBitmapTextures(void)
+{
+ const char *px =
+ " X X "
+ " X X X "
+ " X X X "
+ " XXXXX X "
+ " X X X "
+ " X X X "
+ " X X "
+ " X X ";
+ const char *nx =
+ " X X "
+ " X X "
+ " X X "
+ " XXXXX X "
+ " X X "
+ " X X "
+ " X X "
+ " X X ";
+ glGenTextures(2, Textures);
+ MakeTexImage(px, Textures[0]);
+ MakeTexImage(nx, Textures[1]);
+}
+
+
+static void
+LoadAndCompileShader(GLuint shader, const char *text)
+{
+ GLint stat;
+
+ glShaderSource_func(shader, 1, (const GLchar **) &text, NULL);
+
+ glCompileShader_func(shader);
+
+ glGetShaderiv_func(shader, GL_COMPILE_STATUS, &stat);
+ if (!stat) {
+ GLchar log[1000];
+ GLsizei len;
+ glGetShaderInfoLog_func(shader, 1000, &len, log);
+ fprintf(stderr, "fslight: problem compiling shader:\n%s\n", log);
+ exit(1);
+ }
+}
+
+
+static void
+CheckLink(GLuint prog)
+{
+ GLint stat;
+ glGetProgramiv_func(prog, GL_LINK_STATUS, &stat);
+ if (!stat) {
+ GLchar log[1000];
+ GLsizei len;
+ glGetProgramInfoLog_func(prog, 1000, &len, log);
+ fprintf(stderr, "Linker error:\n%s\n", log);
+ }
+}
+
+
+static void
+Init(void)
+{
+ /* Fragment shader: modulate raster color by texture, discard fragments
+ * with alpha < 1.0
+ */
+ static const char *fragShaderText =
+ "uniform sampler2D tex2d; \n"
+ "void main() {\n"
+ " vec4 c = texture2D(tex2d, gl_TexCoord[0].xy); \n"
+ " if (c.w < 1.0) \n"
+ " discard; \n"
+ " gl_FragColor = c * gl_Color; \n"
+ "}\n";
+ /* Vertex shader: compute new vertex position based on incoming vertex pos,
+ * texcoords and special scale factor.
+ */
+ static const char *vertShaderText =
+ "uniform vec2 scale; \n"
+ "void main() {\n"
+ " vec4 p = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
+ " gl_Position.xy = p.xy + gl_MultiTexCoord0.xy * scale * p.w; \n"
+ " gl_Position.zw = p.zw; \n"
+ " gl_TexCoord[0] = gl_MultiTexCoord0; \n"
+ " gl_FrontColor = gl_Color; \n"
+ "}\n";
+ const char *version;
+
+ version = (const char *) glGetString(GL_VERSION);
+ if (version[0] != '2' || version[1] != '.') {
+ printf("This program requires OpenGL 2.x, found %s\n", version);
+ exit(1);
+ }
+ printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER));
+
+ GetExtensionFuncs();
+
+ FragShader = glCreateShader_func(GL_FRAGMENT_SHADER);
+ LoadAndCompileShader(FragShader, fragShaderText);
+
+ VertShader = glCreateShader_func(GL_VERTEX_SHADER);
+ LoadAndCompileShader(VertShader, vertShaderText);
+
+ Program = glCreateProgram_func();
+ glAttachShader_func(Program, FragShader);
+ glAttachShader_func(Program, VertShader);
+ glLinkProgram_func(Program);
+ CheckLink(Program);
+ glUseProgram_func(Program);
+
+ uScale = glGetUniformLocation_func(Program, "scale");
+ uTex = glGetUniformLocation_func(Program, "tex2d");
+ if (uTex != -1) {
+ glUniform1i_func(uTex, 0); /* tex unit 0 */
+ }
+
+ glUseProgram_func(0);
+
+ glClearColor(0.3f, 0.3f, 0.3f, 0.0f);
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_NORMALIZE);
+ glEnable(GL_LIGHT0);
+
+ MakeBitmapTextures();
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInit(&argc, argv);
+ glutInitWindowSize(WinWidth, WinHeight);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+ Win = glutCreateWindow(argv[0]);
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutSpecialFunc(SpecialKey);
+ glutDisplayFunc(Redisplay);
+ if (Anim)
+ glutIdleFunc(Idle);
+ Init();
+ glutMainLoop();
+ return 0;
+}
+
+
diff --git a/progs/glsl/points.c b/progs/glsl/points.c
new file mode 100644
index 0000000000..85115de504
--- /dev/null
+++ b/progs/glsl/points.c
@@ -0,0 +1,305 @@
+/**
+ * Implement smooth (AA) points with shaders.
+ * A simple variation could be used for sprite points.
+ * Brian Paul
+ * 29 July 2007
+ */
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <GL/gl.h>
+#include <GL/glut.h>
+#include <GL/glext.h>
+#include "extfuncs.h"
+
+
+static GLuint FragShader;
+static GLuint VertShader;
+static GLuint Program;
+
+static GLint Win = 0;
+static GLint WinWidth = 500, WinHeight = 200;
+static GLfloat Xpos = 0.0f, Ypos = 0.0f;
+static GLint uViewportInv;
+static GLboolean Smooth = GL_TRUE, Blend = GL_TRUE;
+
+
+/**
+ * Issue vertices for a "shader point".
+ * The position is duplicated, only texcoords (or other vertex attrib) change.
+ * The vertex program will compute the "real" quad corners.
+ */
+static void
+PointVertex3f(GLfloat x, GLfloat y, GLfloat z)
+{
+ glTexCoord2f(-1, -1);
+ glVertex3f(x, y, z);
+
+ glTexCoord2f( 1, -1);
+ glVertex3f(x, y, z);
+
+ glTexCoord2f( 1, 1);
+ glVertex3f(x, y, z);
+
+ glTexCoord2f(-1, 1);
+ glVertex3f(x, y, z);
+}
+
+
+static void
+DrawPoints(GLboolean shaderPoints)
+{
+ int i;
+ for (i = 0; i < 9; i++) {
+ GLfloat x = i - 4, y = 0, z = 0;
+ /* note: can't call glPointSize inside Begin/End :( */
+ glPointSize( 2 + i * 5 );
+ if (shaderPoints) {
+ glBegin(GL_QUADS);
+ PointVertex3f(x, y, z);
+ glEnd();
+ }
+ else {
+ glBegin(GL_POINTS);
+ glVertex3f(x, y, z);
+ glEnd();
+ }
+ }
+}
+
+
+/**
+ * Top row of points rendered convetionally,
+ * bottom row rendered with shaders.
+ */
+static void
+Redisplay(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ if (Smooth)
+ glEnable(GL_POINT_SMOOTH);
+ else
+ glDisable(GL_POINT_SMOOTH);
+
+ if (Blend)
+ glEnable(GL_BLEND);
+ else
+ glDisable(GL_BLEND);
+
+ glPushMatrix();
+ glTranslatef(Xpos, Ypos, 0);
+
+ /*
+ * regular points
+ */
+ glPushMatrix();
+ glTranslatef(0, 1.2, 0);
+ glUseProgram_func(0);
+ DrawPoints(GL_FALSE);
+ glPopMatrix();
+
+ /*
+ * shader points
+ */
+ glPushMatrix();
+ glTranslatef(0, -1.2, 0);
+ glUseProgram_func(Program);
+ if (uViewportInv != -1) {
+ glUniform2f_func(uViewportInv, 1.0 / WinWidth, 1.0 / WinHeight);
+ }
+ DrawPoints(GL_TRUE);
+ glPopMatrix();
+
+ glPopMatrix();
+
+ glutSwapBuffers();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ WinWidth = width;
+ WinHeight = height;
+ glViewport(0, 0, width, height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1.0, 1.0, -1.0, 1.0, 4.0, 30.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0f, 0.0f, -20.0f);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ (void) x;
+ (void) y;
+
+ switch(key) {
+ case 'b':
+ Blend = !Blend;
+ break;
+ case 's':
+ Smooth = !Smooth;
+ break;
+ case 27:
+ glDeleteShader_func(FragShader);
+ glDeleteShader_func(VertShader);
+ glDeleteProgram_func(Program);
+ glutDestroyWindow(Win);
+ exit(0);
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+SpecialKey(int key, int x, int y)
+{
+ const GLfloat step = 1/100.0;
+ 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
+LoadAndCompileShader(GLuint shader, const char *text)
+{
+ GLint stat;
+
+ glShaderSource_func(shader, 1, (const GLchar **) &text, NULL);
+
+ glCompileShader_func(shader);
+
+ glGetShaderiv_func(shader, GL_COMPILE_STATUS, &stat);
+ if (!stat) {
+ GLchar log[1000];
+ GLsizei len;
+ glGetShaderInfoLog_func(shader, 1000, &len, log);
+ fprintf(stderr, "fslight: problem compiling shader:\n%s\n", log);
+ exit(1);
+ }
+}
+
+
+static void
+CheckLink(GLuint prog)
+{
+ GLint stat;
+ glGetProgramiv_func(prog, GL_LINK_STATUS, &stat);
+ if (!stat) {
+ GLchar log[1000];
+ GLsizei len;
+ glGetProgramInfoLog_func(prog, 1000, &len, log);
+ fprintf(stderr, "Linker error:\n%s\n", log);
+ }
+}
+
+
+static void
+Init(void)
+{
+ /* Fragment shader: compute distance of fragment from center of point
+ * (we're using texcoords but another varying could be used).
+ * if dist > 1, discard (coverage==0)
+ * if dist < k, coverage = 1
+ * else, coverage = func(dist)
+ * Note: length() uses sqrt() and may be expensive. The distance could
+ * be squared instead (with adjustments to the threshold (k) test)
+ */
+ static const char *fragShaderText =
+ "void main() {\n"
+ " float cover; \n"
+ " float k = 2.0 / gl_Point.size; \n"
+ " float d = length(gl_TexCoord[0].xy); \n"
+ " if (d >= 1.0) \n"
+ " discard; \n"
+ " if (d < 1.0 - k) \n"
+ " cover = 1.0; \n"
+ " else \n"
+ " cover = (1.0 - d) * 0.5 * gl_Point.size; \n"
+ " gl_FragColor.rgb = gl_Color.rgb; \n"
+ " gl_FragColor.a = cover; \n"
+ "}\n";
+ /* Vertex shader: compute new vertex position based on incoming vertex pos,
+ * texcoords, point size, and inverse viewport scale factor.
+ * Note: should compute point size attenuation here too.
+ */
+ static const char *vertShaderText =
+ "uniform vec2 viewportInv; \n"
+ "void main() {\n"
+ " vec4 pos = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
+ " gl_Position.xy = pos.xy + gl_MultiTexCoord0.xy * viewportInv \n"
+ " * gl_Point.size * pos.w; \n"
+ " gl_Position.zw = pos.zw; \n"
+ " gl_TexCoord[0] = gl_MultiTexCoord0; \n"
+ " gl_FrontColor = gl_Color; \n"
+ "}\n";
+ const char *version;
+
+ version = (const char *) glGetString(GL_VERSION);
+ if (version[0] != '2' || version[1] != '.') {
+ printf("This program requires OpenGL 2.x, found %s\n", version);
+ exit(1);
+ }
+ printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER));
+
+ GetExtensionFuncs();
+
+ FragShader = glCreateShader_func(GL_FRAGMENT_SHADER);
+ LoadAndCompileShader(FragShader, fragShaderText);
+
+ VertShader = glCreateShader_func(GL_VERTEX_SHADER);
+ LoadAndCompileShader(VertShader, vertShaderText);
+
+ Program = glCreateProgram_func();
+ glAttachShader_func(Program, FragShader);
+ glAttachShader_func(Program, VertShader);
+ glLinkProgram_func(Program);
+ CheckLink(Program);
+ glUseProgram_func(Program);
+
+ uViewportInv = glGetUniformLocation_func(Program, "viewportInv");
+
+ glUseProgram_func(0);
+
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInit(&argc, argv);
+ glutInitWindowSize(WinWidth, WinHeight);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+ Win = glutCreateWindow(argv[0]);
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutSpecialFunc(SpecialKey);
+ glutDisplayFunc(Redisplay);
+ Init();
+ glutMainLoop();
+ return 0;
+}
+
+
diff --git a/progs/glsl/trirast.c b/progs/glsl/trirast.c
new file mode 100644
index 0000000000..e4325deb1f
--- /dev/null
+++ b/progs/glsl/trirast.c
@@ -0,0 +1,326 @@
+/**
+ * Demonstration of doing triangle rasterization with a fragment program.
+ * Basic idea:
+ * 1. Draw screen-aligned quad / bounding box around the triangle verts.
+ * 2. For each pixel in the quad, determine if pixel is inside/outside
+ * the triangle edges.
+ *
+ * Brian Paul
+ * 1 Aug 2007
+ */
+
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <GL/gl.h>
+#include <GL/glut.h>
+#include <GL/glext.h>
+#include "extfuncs.h"
+
+
+static GLint WinWidth = 300, WinHeight = 300;
+static char *FragProgFile = NULL;
+static char *VertProgFile = NULL;
+static GLuint fragShader;
+static GLuint vertShader;
+static GLuint program;
+static GLint win = 0;
+static GLboolean anim = GL_TRUE;
+static GLfloat Zrot = 0.0f;
+static GLint uv0, uv1, uv2;
+
+
+static const GLfloat TriVerts[3][2] = {
+ { 50, 50 },
+ { 250, 50 },
+ { 150, 250 }
+};
+
+
+static void
+RotateVerts(GLfloat a,
+ GLuint n, const GLfloat vertsIn[][2], GLfloat vertsOut[][2])
+{
+ GLuint i;
+ GLfloat cx = WinWidth / 2, cy = WinHeight / 2;
+ for (i = 0; i < n; i++) {
+ float x = vertsIn[i][0] - cx;
+ float y = vertsIn[i][1] - cy;
+
+ vertsOut[i][0] = x * cos(a) + y * sin(a) + cx;
+ vertsOut[i][1] = -x * sin(a) + y * cos(a) + cy;
+ }
+}
+
+static void
+ComputeBounds(GLuint n, GLfloat vertsIn[][2],
+ GLfloat *xmin, GLfloat *ymin,
+ GLfloat *xmax, GLfloat *ymax)
+{
+ GLuint i;
+ *xmin = *xmax = vertsIn[0][0];
+ *ymin = *ymax = vertsIn[0][1];
+ for (i = 1; i < n; i++) {
+ if (vertsIn[i][0] < *xmin)
+ *xmin = vertsIn[i][0];
+ else if (vertsIn[i][0] > *xmax)
+ *xmax = vertsIn[i][0];
+ if (vertsIn[i][1] < *ymin)
+ *ymin = vertsIn[i][1];
+ else if (vertsIn[i][1] > *ymax)
+ *ymax = vertsIn[i][1];
+ }
+}
+
+
+static void
+Redisplay(void)
+{
+ GLfloat v[3][2], xmin, ymin, xmax, ymax;
+
+ RotateVerts(Zrot, 3, TriVerts, v);
+ ComputeBounds(3, v, &xmin, &ymin, &xmax, &ymax);
+
+ glUniform2fv_func(uv0, 1, v[0]);
+ glUniform2fv_func(uv1, 1, v[1]);
+ glUniform2fv_func(uv2, 1, v[2]);
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glBegin(GL_POLYGON);
+ glVertex2f(xmin, ymin);
+ glVertex2f(xmax, ymin);
+ glVertex2f(xmax, ymax);
+ glVertex2f(xmin, ymax);
+ glEnd();
+ glPopMatrix();
+
+ glutSwapBuffers();
+}
+
+
+static void
+Idle(void)
+{
+ Zrot = glutGet(GLUT_ELAPSED_TIME) * 0.0005;
+ glutPostRedisplay();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ glViewport(0, 0, width, height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(0, width, 0, height, -1, 1);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+}
+
+
+static void
+CleanUp(void)
+{
+ glDeleteShader_func(fragShader);
+ glDeleteShader_func(vertShader);
+ glDeleteProgram_func(program);
+ glutDestroyWindow(win);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ (void) x;
+ (void) y;
+
+ switch(key) {
+ case ' ':
+ case 'a':
+ anim = !anim;
+ if (anim)
+ glutIdleFunc(Idle);
+ else
+ glutIdleFunc(NULL);
+ break;
+ case 27:
+ CleanUp();
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+LoadAndCompileShader(GLuint shader, const char *text)
+{
+ GLint stat;
+
+ glShaderSource_func(shader, 1, (const GLchar **) &text, NULL);
+
+ glCompileShader_func(shader);
+
+ glGetShaderiv_func(shader, GL_COMPILE_STATUS, &stat);
+ if (!stat) {
+ GLchar log[1000];
+ GLsizei len;
+ glGetShaderInfoLog_func(shader, 1000, &len, log);
+ fprintf(stderr, "fslight: problem compiling shader:\n%s\n", log);
+ exit(1);
+ }
+}
+
+
+/**
+ * Read a shader from a file.
+ */
+static void
+ReadShader(GLuint shader, const char *filename)
+{
+ const int max = 100*1000;
+ int n;
+ char *buffer = (char*) malloc(max);
+ FILE *f = fopen(filename, "r");
+ if (!f) {
+ fprintf(stderr, "fslight: Unable to open shader file %s\n", filename);
+ exit(1);
+ }
+
+ n = fread(buffer, 1, max, f);
+ printf("fslight: read %d bytes from shader file %s\n", n, filename);
+ if (n > 0) {
+ buffer[n] = 0;
+ LoadAndCompileShader(shader, buffer);
+ }
+
+ fclose(f);
+ free(buffer);
+}
+
+
+static void
+CheckLink(GLuint prog)
+{
+ GLint stat;
+ glGetProgramiv_func(prog, GL_LINK_STATUS, &stat);
+ if (!stat) {
+ GLchar log[1000];
+ GLsizei len;
+ glGetProgramInfoLog_func(prog, 1000, &len, log);
+ fprintf(stderr, "Linker error:\n%s\n", log);
+ }
+}
+
+
+static void
+Init(void)
+{
+ static const char *fragShaderText =
+ "uniform vec2 v0, v1, v2; \n"
+ "float crs(const vec2 u, const vec2 v) \n"
+ "{ \n"
+ " return u.x * v.y - u.y * v.x; \n"
+ "} \n"
+ "\n"
+ "void main() {\n"
+ " vec2 p = gl_FragCoord.xy; \n"
+ " if (crs(v1 - v0, p - v0) >= 0 && \n"
+ " crs(v2 - v1, p - v1) >= 0 && \n"
+ " crs(v0 - v2, p - v2) >= 0) \n"
+ " gl_FragColor = vec4(1.0); \n"
+ " else \n"
+ " gl_FragColor = vec4(0.5); \n"
+ "}\n";
+ static const char *vertShaderText =
+ "void main() {\n"
+ " gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
+ "}\n";
+ const char *version;
+
+ version = (const char *) glGetString(GL_VERSION);
+ if (version[0] != '2' || version[1] != '.') {
+ printf("This program requires OpenGL 2.x, found %s\n", version);
+ exit(1);
+ }
+
+ GetExtensionFuncs();
+
+ fragShader = glCreateShader_func(GL_FRAGMENT_SHADER);
+ if (FragProgFile)
+ ReadShader(fragShader, FragProgFile);
+ else
+ LoadAndCompileShader(fragShader, fragShaderText);
+
+ vertShader = glCreateShader_func(GL_VERTEX_SHADER);
+ if (VertProgFile)
+ ReadShader(vertShader, VertProgFile);
+ else
+ LoadAndCompileShader(vertShader, vertShaderText);
+
+ program = glCreateProgram_func();
+ glAttachShader_func(program, fragShader);
+ glAttachShader_func(program, vertShader);
+ glLinkProgram_func(program);
+ CheckLink(program);
+ glUseProgram_func(program);
+
+ uv0 = glGetUniformLocation_func(program, "v0");
+ uv1 = glGetUniformLocation_func(program, "v1");
+ uv2 = glGetUniformLocation_func(program, "v2");
+ printf("Uniforms: %d %d %d\n", uv0, uv1, uv2);
+
+ /*assert(glGetError() == 0);*/
+
+ glClearColor(0.3f, 0.3f, 0.3f, 0.0f);
+ glEnable(GL_DEPTH_TEST);
+
+ printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER));
+
+ assert(glIsProgram_func(program));
+ assert(glIsShader_func(fragShader));
+ assert(glIsShader_func(vertShader));
+
+ glColor3f(1, 0, 0);
+}
+
+
+static void
+ParseOptions(int argc, char *argv[])
+{
+ int i;
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-fs") == 0) {
+ FragProgFile = argv[i+1];
+ }
+ else if (strcmp(argv[i], "-vs") == 0) {
+ VertProgFile = argv[i+1];
+ }
+ }
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInit(&argc, argv);
+ glutInitWindowPosition( 0, 0);
+ glutInitWindowSize(WinWidth, WinHeight);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+ win = glutCreateWindow(argv[0]);
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Redisplay);
+ if (anim)
+ glutIdleFunc(Idle);
+ ParseOptions(argc, argv);
+ Init();
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/osdemos/ostest1.c b/progs/osdemos/ostest1.c
index 001e368616..2c7adfc353 100644
--- a/progs/osdemos/ostest1.c
+++ b/progs/osdemos/ostest1.c
@@ -409,6 +409,8 @@ test(GLenum type, GLint bits, const char *filename)
printf("Rendering %d bit/channel image: %s\n", bits, filename);
+ OSMesaColorClamp(GL_TRUE);
+
init_context();
render_image();
if (Gradient)
@@ -421,7 +423,7 @@ test(GLenum type, GLint bits, const char *filename)
if (WriteFiles && filename != NULL) {
if (type == GL_UNSIGNED_SHORT) {
GLushort *buffer16 = (GLushort *) buffer;
- GLubyte *buffer8 = malloc(WIDTH * HEIGHT * 4);
+ GLubyte *buffer8 = (GLubyte *) malloc(WIDTH * HEIGHT * 4);
int i;
for (i = 0; i < WIDTH * HEIGHT * 4; i++)
buffer8[i] = buffer16[i] >> 8;
@@ -430,8 +432,9 @@ test(GLenum type, GLint bits, const char *filename)
}
else if (type == GL_FLOAT) {
GLfloat *buffer32 = (GLfloat *) buffer;
- GLubyte *buffer8 = malloc(WIDTH * HEIGHT * 4);
+ GLubyte *buffer8 = (GLubyte *) malloc(WIDTH * HEIGHT * 4);
int i;
+ /* colors may be outside [0,1] so we need to clamp */
for (i = 0; i < WIDTH * HEIGHT * 4; i++)
buffer8[i] = (GLubyte) (buffer32[i] * 255.0);
write_ppm(filename, buffer8, WIDTH, HEIGHT);
diff --git a/progs/samples/Makefile.mgw b/progs/samples/Makefile.mgw
index 1193540578..8bb975be9d 100644
--- a/progs/samples/Makefile.mgw
+++ b/progs/samples/Makefile.mgw
@@ -26,6 +26,15 @@
# Email : dborca@users.sourceforge.net
# Web : http://www.geocities.com/dborca
+# MinGW samples makefile updated for Mesa 7.0
+#
+# Updated : by Heromyth, on 2007-7-21
+# Email : zxpmyth@yahoo.com.cn
+# Bugs : 1) All the default settings work fine. But the setting X86=1 can't work.
+# The others havn't been tested yet.
+# 2) The generated DLLs are *not* compatible with the ones built
+# with the other compilers like VC8, especially for GLUT.
+# 3) Although more tests are needed, it can be used individually!
#
# Available options:
@@ -45,14 +54,14 @@
TOP = ../..
CC = mingw32-gcc
-CFLAGS = -Wall -W -pedantic
-CFLAGS += -O2 -ffast-math
+CFLAGS = -Wall -pedantic
+CFLAGS += -O2 -ffast-math -D_DLL
CFLAGS += -I$(TOP)/include -I../util
ifeq ($(FX),1)
-CFLAGS += -DFX
+ CFLAGS += -DFX
endif
-CFLAGS += -DGLUT_DISABLE_ATEXIT_HACK -D_STDCALL_SUPPORTED
-CFLAGS += -D_WINDEF_ -D_WINGDI_
+
+CFLAGS += -DGLUT_DISABLE_ATEXIT_HACK
LD = mingw32-g++
LDFLAGS = -s -L$(TOP)/lib
@@ -62,7 +71,8 @@ LDLIBS = -lglut32 -lglu32 -lopengl32
.c.o:
$(CC) -o $@ $(CFLAGS) -c $<
%.exe: ../util/readtex.o ../util/showbuffer.o %.o
- $(LD) -o $@ $(LDFLAGS) $^ $(LDLIBS)
+ $(LD) -o $@ $(LDFLAGS) $(LDLIBS) $^
+
all:
$(error Must specify <filename.exe> to build)
diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index b506db3e7b..9016efe9e7 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -55,6 +55,7 @@ SOURCES = \
pbo.c \
prog_parameter.c \
projtex.c \
+ random.c \
readrate.c \
seccolor.c \
sharedtex.c \
diff --git a/progs/tests/random.c b/progs/tests/random.c
new file mode 100644
index 0000000000..d52c338e0e
--- /dev/null
+++ b/progs/tests/random.c
@@ -0,0 +1,457 @@
+/**
+ * Random rendering, to check for crashes, hangs, etc.
+ *
+ * Brian Paul
+ * 21 June 2007
+ */
+
+#define GL_GLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <GL/glut.h>
+
+static int Win;
+static GLboolean Anim = GL_TRUE;
+static int Width = 200, Height = 200;
+static int DB = 0;
+static int MinVertexCount = 0, MaxVertexCount = 1000;
+static int Count = 0;
+
+struct vertex
+{
+ int type;
+ float v[4];
+};
+
+static int BufferSize = 10000;
+static struct vertex *Vbuffer = NULL;
+static int Vcount, Vprim;
+
+enum {
+ BEGIN,
+ END,
+ VERTEX2,
+ VERTEX3,
+ VERTEX4,
+ COLOR3,
+ COLOR4,
+ TEX2,
+ TEX3,
+ TEX4,
+ SECCOLOR3,
+ NORMAL3
+};
+
+
+
+/**
+ * This can be called from within gdb after a crash:
+ * (gdb) call ReportState()
+ */
+static void
+ReportState(void)
+{
+ static const struct {
+ GLenum token;
+ char *str;
+ GLenum type;
+ } state [] = {
+ { GL_ALPHA_TEST, "GL_ALPHA_TEST", GL_INT },
+ { GL_BLEND, "GL_BLEND", GL_INT },
+ { GL_CLIP_PLANE0, "GL_CLIP_PLANE0", GL_INT },
+ { GL_DEPTH_TEST, "GL_DEPTH_TEST", GL_INT },
+ { GL_LIGHTING, "GL_LIGHTING", GL_INT },
+ { GL_LINE_WIDTH, "GL_LINE_WIDTH", GL_FLOAT },
+ { GL_POINT_SIZE, "GL_POINT_SIZE", GL_FLOAT },
+ { GL_SHADE_MODEL, "GL_SHADE_MODEL", GL_INT },
+ { GL_SCISSOR_TEST, "GL_SCISSOR_TEST", GL_INT },
+ { 0, NULL, 0 }
+ };
+
+ GLint i;
+
+ for (i = 0; state[i].token; i++) {
+ if (state[i].type == GL_INT) {
+ GLint v;
+ glGetIntegerv(state[i].token, &v);
+ printf("%s = %d\n", state[i].str, v);
+ }
+ else {
+ GLfloat v;
+ glGetFloatv(state[i].token, &v);
+ printf("%s = %f\n", state[i].str, v);
+ }
+ }
+}
+
+static void
+PrintVertex(const char *f, const struct vertex *v, int sz)
+{
+ int i;
+ printf("%s(", f);
+ for (i = 0; i < sz; i++) {
+ printf("%g%s", v->v[i], (i == sz-1) ? "" : ", ");
+ }
+ printf(");\n");
+}
+
+/**
+ * This can be called from within gdb after a crash:
+ * (gdb) call ReportState()
+ */
+static void
+LastPrim(void)
+{
+ int i;
+ for (i = 0; i < Vcount; i++) {
+ switch (Vbuffer[i].type) {
+ case BEGIN:
+ printf("glBegin(%d);\n", (int) Vbuffer[i].v[0]);
+ break;
+ case END:
+ printf("glEnd();\n");
+ break;
+ case VERTEX2:
+ PrintVertex("glVertex2f", Vbuffer + i, 2);
+ break;
+ case VERTEX3:
+ PrintVertex("glVertex3f", Vbuffer + i, 3);
+ break;
+ case VERTEX4:
+ PrintVertex("glVertex4f", Vbuffer + i, 4);
+ break;
+ case COLOR3:
+ PrintVertex("glColor3f", Vbuffer + i, 3);
+ break;
+ case COLOR4:
+ PrintVertex("glColor4f", Vbuffer + i, 4);
+ break;
+ case TEX2:
+ PrintVertex("glTexCoord2f", Vbuffer + i, 2);
+ break;
+ case TEX3:
+ PrintVertex("glTexCoord3f", Vbuffer + i, 3);
+ break;
+ case TEX4:
+ PrintVertex("glTexCoord4f", Vbuffer + i, 4);
+ break;
+ case SECCOLOR3:
+ PrintVertex("glSecondaryColor3f", Vbuffer + i, 3);
+ break;
+ case NORMAL3:
+ PrintVertex("glNormal3f", Vbuffer + i, 3);
+ break;
+ default:
+ abort();
+ }
+ }
+}
+
+
+static int
+RandomInt(int max)
+{
+ if (max == 0)
+ return 0;
+ return rand() % max;
+}
+
+static float
+RandomFloat(float min, float max)
+{
+ int k = rand() % 10000;
+ float x = min + (max - min) * k / 10000.0;
+ return x;
+}
+
+/*
+ * Return true if random number in [0,1] is <= percentile.
+ */
+static GLboolean
+RandomChoice(float percentile)
+{
+ return RandomFloat(0.0, 1.0) <= percentile;
+}
+
+static void
+RandomStateChange(void)
+{
+ int k = RandomInt(19);
+ switch (k) {
+ case 0:
+ glEnable(GL_BLEND);
+ break;
+ case 1:
+ glDisable(GL_BLEND);
+ break;
+ case 2:
+ glEnable(GL_ALPHA_TEST);
+ break;
+ case 3:
+ glEnable(GL_ALPHA_TEST);
+ break;
+ case 4:
+ glEnable(GL_DEPTH_TEST);
+ break;
+ case 5:
+ glEnable(GL_DEPTH_TEST);
+ break;
+ case 6:
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ break;
+ case 7:
+ glPointSize(10.0);
+ break;
+ case 8:
+ glPointSize(1.0);
+ break;
+ case 9:
+ glLineWidth(10.0);
+ break;
+ case 10:
+ glLineWidth(1.0);
+ break;
+ case 11:
+ glEnable(GL_LIGHTING);
+ break;
+ case 12:
+ glDisable(GL_LIGHTING);
+ break;
+ case 13:
+ glEnable(GL_SCISSOR_TEST);
+ break;
+ case 14:
+ glDisable(GL_SCISSOR_TEST);
+ break;
+ case 15:
+ glEnable(GL_CLIP_PLANE0);
+ break;
+ case 16:
+ glDisable(GL_CLIP_PLANE0);
+ break;
+ case 17:
+ glShadeModel(GL_FLAT);
+ break;
+ case 18:
+ glShadeModel(GL_SMOOTH);
+ break;
+ }
+}
+
+
+static void
+RandomPrimitive(void)
+{
+ int i;
+ int len = MinVertexCount + RandomInt(MaxVertexCount - MinVertexCount);
+
+ Vprim = RandomInt(10);
+
+ glBegin(Vprim);
+ Vbuffer[Vcount].type = BEGIN;
+ Vbuffer[Vcount].v[0] = Vprim;
+ Vcount++;
+
+ for (i = 0; i < len; i++) {
+ Vbuffer[Vcount].v[0] = RandomFloat(-3, 3);
+ Vbuffer[Vcount].v[1] = RandomFloat(-3, 3);
+ Vbuffer[Vcount].v[2] = RandomFloat(-3, 3);
+ Vbuffer[Vcount].v[3] = RandomFloat(-3, 3);
+ int k = RandomInt(9);
+ switch (k) {
+ case 0:
+ glVertex2fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = VERTEX2;
+ break;
+ case 1:
+ glVertex3fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = VERTEX3;
+ break;
+ case 2:
+ glVertex4fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = VERTEX4;
+ break;
+ case 3:
+ glColor3fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = COLOR3;
+ break;
+ case 4:
+ glColor4fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = COLOR4;
+ break;
+ case 5:
+ glTexCoord2fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = TEX2;
+ break;
+ case 6:
+ glTexCoord3fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = TEX3;
+ break;
+ case 7:
+ glTexCoord4fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = TEX4;
+ break;
+ case 8:
+ glSecondaryColor3fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = SECCOLOR3;
+ break;
+ case 9:
+ glNormal3fv(Vbuffer[Vcount].v);
+ Vbuffer[Vcount].type = NORMAL3;
+ break;
+ default:
+ abort();
+ }
+ Vcount++;
+
+ if (Vcount >= BufferSize - 2) {
+ /* reset */
+ Vcount = 0;
+ }
+ }
+
+ Vbuffer[Vcount++].type = END;
+
+ glEnd();
+}
+
+
+static void
+RandomDraw(void)
+{
+ int i;
+ GLboolean dlist = RandomChoice(0.1);
+ if (dlist)
+ glNewList(1, GL_COMPILE);
+ for (i = 0; i < 3; i++) {
+ RandomStateChange();
+ }
+ RandomPrimitive();
+
+ if (dlist) {
+ glEndList();
+ glCallList(1);
+ }
+}
+
+
+static void
+Idle(void)
+{
+ glutPostRedisplay();
+}
+
+
+static void
+Draw(void)
+{
+#if 1
+ RandomDraw();
+ Count++;
+#else
+ /* cut & paste temp code here */
+#endif
+
+ assert(glGetError() == 0);
+
+ if (DB)
+ glutSwapBuffers();
+ else
+ glFinish();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ Width = width;
+ Height = height;
+ glViewport(0, 0, width, height);
+ glScissor(20, 20, Width-40, Height-40);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case 27:
+ glutDestroyWindow(Win);
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+Init(void)
+{
+ static const GLdouble plane[4] = {1, 1, 0, 0};
+ glDrawBuffer(GL_FRONT);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glEnable(GL_LIGHT0);
+ glClipPlane(GL_CLIP_PLANE0, plane);
+
+ Vbuffer = (struct vertex *)
+ malloc(BufferSize * sizeof(struct vertex));
+
+ /* silence warnings */
+ (void) ReportState;
+ (void) LastPrim;
+}
+
+
+static void
+ParseArgs(int argc, char *argv[])
+{
+ int i;
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-s") == 0) {
+ int j = atoi(argv[i + 1]);
+ printf("Random seed value: %d\n", j);
+ srand(j);
+ i++;
+ }
+ else if (strcmp(argv[i], "-a") == 0) {
+ i++;
+ MinVertexCount = atoi(argv[i]);
+ }
+ else if (strcmp(argv[i], "-b") == 0) {
+ i++;
+ MaxVertexCount = atoi(argv[i]);
+ }
+ }
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInit(&argc, argv);
+ glutInitWindowPosition(0, 0);
+ glutInitWindowSize(Width, Height);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+ Win = glutCreateWindow(argv[0]);
+ ParseArgs(argc, argv);
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ if (Anim)
+ glutIdleFunc(Idle);
+ Init();
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/util/extfuncs.h b/progs/util/extfuncs.h
index 5d647cdae7..716bb7df3b 100644
--- a/progs/util/extfuncs.h
+++ b/progs/util/extfuncs.h
@@ -26,6 +26,13 @@ static PFNGLISSHADERPROC glIsShader_func = NULL;
static PFNGLLINKPROGRAMPROC glLinkProgram_func = NULL;
static PFNGLSHADERSOURCEPROC glShaderSource_func = NULL;
static PFNGLUNIFORM1IPROC glUniform1i_func = NULL;
+static PFNGLUNIFORM2IPROC glUniform2i_func = NULL;
+static PFNGLUNIFORM3IPROC glUniform3i_func = NULL;
+static PFNGLUNIFORM4IPROC glUniform4i_func = NULL;
+static PFNGLUNIFORM1FPROC glUniform1f_func = NULL;
+static PFNGLUNIFORM2FPROC glUniform2f_func = NULL;
+static PFNGLUNIFORM3FPROC glUniform3f_func = NULL;
+static PFNGLUNIFORM4FPROC glUniform4f_func = NULL;
static PFNGLUNIFORM1FVPROC glUniform1fv_func = NULL;
static PFNGLUNIFORM2FVPROC glUniform2fv_func = NULL;
static PFNGLUNIFORM3FVPROC glUniform3fv_func = NULL;
@@ -47,6 +54,9 @@ static PFNGLUNIFORMMATRIX4X2FVPROC glUniformMatrix4x2fv_func = NULL;
static PFNGLUNIFORMMATRIX3X4FVPROC glUniformMatrix3x4fv_func = NULL;
static PFNGLUNIFORMMATRIX4X3FVPROC glUniformMatrix4x3fv_func = NULL;
+/* OpenGL 1.4 */
+static PFNGLPOINTPARAMETERFVPROC glPointParameterfv_func = NULL;
+
/* GL_ARB_vertex/fragment_program */
static PFNGLBINDPROGRAMARBPROC glBindProgramARB_func = NULL;
static PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB_func = NULL;
@@ -94,6 +104,13 @@ GetExtensionFuncs(void)
glLinkProgram_func = (PFNGLLINKPROGRAMPROC) glutGetProcAddress("glLinkProgram");
glShaderSource_func = (PFNGLSHADERSOURCEPROC) glutGetProcAddress("glShaderSource");
glUniform1i_func = (PFNGLUNIFORM1IPROC) glutGetProcAddress("glUniform1i");
+ glUniform2i_func = (PFNGLUNIFORM2IPROC) glutGetProcAddress("glUniform2i");
+ glUniform3i_func = (PFNGLUNIFORM3IPROC) glutGetProcAddress("glUniform3i");
+ glUniform4i_func = (PFNGLUNIFORM4IPROC) glutGetProcAddress("glUniform3i");
+ glUniform1f_func = (PFNGLUNIFORM1FPROC) glutGetProcAddress("glUniform1f");
+ glUniform2f_func = (PFNGLUNIFORM2FPROC) glutGetProcAddress("glUniform2f");
+ glUniform3f_func = (PFNGLUNIFORM3FPROC) glutGetProcAddress("glUniform3f");
+ glUniform4f_func = (PFNGLUNIFORM4FPROC) glutGetProcAddress("glUniform3f");
glUniform1fv_func = (PFNGLUNIFORM1FVPROC) glutGetProcAddress("glUniform1fv");
glUniform2fv_func = (PFNGLUNIFORM2FVPROC) glutGetProcAddress("glUniform2fv");
glUniform3fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform3fv");
@@ -115,6 +132,8 @@ GetExtensionFuncs(void)
glUniformMatrix3x4fv_func = (PFNGLUNIFORMMATRIX3X4FVPROC) glutGetProcAddress("glUniformMatrix3x4fv");
glUniformMatrix4x3fv_func = (PFNGLUNIFORMMATRIX4X3FVPROC) glutGetProcAddress("glUniformMatrix4x3fv");
+ glPointParameterfv_func = (PFNGLPOINTPARAMETERFVPROC) glutGetProcAddress("glPointParameterfv");
+
/* GL_ARB_vertex/fragment_program */
glBindProgramARB_func = (PFNGLBINDPROGRAMARBPROC) glutGetProcAddress("glBindProgramARB");
glDeleteProgramsARB_func = (PFNGLDELETEPROGRAMSARBPROC) glutGetProcAddress("glDeleteProgramsARB");
diff --git a/progs/xdemos/Makefile b/progs/xdemos/Makefile
index d1d7fecea1..ba83a7dda4 100644
--- a/progs/xdemos/Makefile
+++ b/progs/xdemos/Makefile
@@ -38,7 +38,7 @@ PROGS = glthreads \
.SUFFIXES: .c
.c: $(LIB_DEP)
- $(CC) -I$(INCDIR) $(CFLAGS) $< $(APP_LIB_DEPS) -o $@
+ $(CC) -I$(INCDIR) $(X11_INCLUDES) $(CFLAGS) $< $(APP_LIB_DEPS) -o $@
##### TARGETS #####
@@ -53,32 +53,32 @@ clean:
# special cases
pbinfo: pbinfo.o pbutil.o
- $(CC) -I$(INCDIR) $(CFLAGS) pbinfo.o pbutil.o $(APP_LIB_DEPS) -o $@
+ $(CC) pbinfo.o pbutil.o $(APP_LIB_DEPS) -o $@
pbdemo: pbdemo.o pbutil.o
- $(CC) -I$(INCDIR) $(CFLAGS) pbdemo.o pbutil.o $(APP_LIB_DEPS) -o $@
+ $(CC) pbdemo.o pbutil.o $(APP_LIB_DEPS) -o $@
pbinfo.o: pbinfo.c pbutil.h
- $(CC) -c -I. -I$(INCDIR) $(CFLAGS) pbinfo.c
+ $(CC) -c -I. -I$(INCDIR) $(X11_INCLUDES) $(CFLAGS) pbinfo.c
pbdemo.o: pbdemo.c pbutil.h
- $(CC) -c -I. -I$(INCDIR) $(CFLAGS) pbdemo.c
+ $(CC) -c -I. -I$(INCDIR) $(X11_INCLUDES) $(CFLAGS) pbdemo.c
pbutil.o: pbutil.c pbutil.h
- $(CC) -c -I. -I$(INCDIR) $(CFLAGS) pbutil.c
+ $(CC) -c -I. -I$(INCDIR) $(X11_INCLUDES) $(CFLAGS) pbutil.c
glxgears_fbconfig: glxgears_fbconfig.o pbutil.o
- $(CC) -I$(INCDIR) $(CFLAGS) glxgears_fbconfig.o pbutil.o $(APP_LIB_DEPS) -o $@
+ $(CC) glxgears_fbconfig.o pbutil.o $(APP_LIB_DEPS) -o $@
glxgears_fbconfig.o: glxgears_fbconfig.c pbutil.h
- $(CC) -I$(INCDIR) $(CFLAGS) -c -I. $(CFLAGS) glxgears_fbconfig.c
+ $(CC) -I$(INCDIR) $(X11_INCLUDES) $(CFLAGS) -c -I. $(CFLAGS) glxgears_fbconfig.c
xrotfontdemo: xrotfontdemo.o xuserotfont.o
- $(CC) -I$(INCDIR) $(CFLAGS) xrotfontdemo.o xuserotfont.o $(APP_LIB_DEPS) -o $@
+ $(CC) xrotfontdemo.o xuserotfont.o $(APP_LIB_DEPS) -o $@
xuserotfont.o: xuserotfont.c xuserotfont.h
- $(CC) -c -I. -I$(INCDIR) $(CFLAGS) xuserotfont.c
+ $(CC) -c -I. -I$(INCDIR) $(X11_INCLUDES) $(CFLAGS) xuserotfont.c
xrotfontdemo.o: xrotfontdemo.c xuserotfont.h
- $(CC) -c -I. -I$(INCDIR) $(CFLAGS) xrotfontdemo.c
+ $(CC) -c -I. -I$(INCDIR) $(X11_INCLUDES) $(CFLAGS) xrotfontdemo.c
diff --git a/progs/xdemos/glxgears.c b/progs/xdemos/glxgears.c
index 75d63e51a2..ec431c16f0 100644
--- a/progs/xdemos/glxgears.c
+++ b/progs/xdemos/glxgears.c
@@ -433,7 +433,7 @@ make_window( Display *dpy, const char *name,
attr.override_redirect = fullscreen;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect;
- win = XCreateWindow( dpy, root, 0, 0, width, height,
+ win = XCreateWindow( dpy, root, x, y, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr );
@@ -548,13 +548,16 @@ usage(void)
printf(" -stereo run in stereo mode\n");
printf(" -fullscreen run in fullscreen mode\n");
printf(" -info display OpenGL renderer info\n");
+ printf(" -winwidth <width> window width (default: 300)\n");
+ printf(" -winheight <height> window height (default: 300)\n");
}
int
main(int argc, char *argv[])
{
- const int winWidth = 300, winHeight = 300;
+ unsigned int winWidth = 300, winHeight = 300;
+ int x = 0, y = 0;
Display *dpy;
Window win;
GLXContext ctx;
@@ -576,6 +579,10 @@ main(int argc, char *argv[])
else if (strcmp(argv[i], "-fullscreen") == 0) {
fullscreen = GL_TRUE;
}
+ else if (i < argc-1 && strcmp(argv[i], "-geometry") == 0) {
+ XParseGeometry(argv[i+1], &x, &y, &winWidth, &winHeight);
+ i++;
+ }
else {
usage();
return -1;
@@ -589,7 +596,7 @@ main(int argc, char *argv[])
return -1;
}
- make_window(dpy, "glxgears", 0, 0, winWidth, winHeight, &win, &ctx);
+ make_window(dpy, "glxgears", x, y, winWidth, winHeight, &win, &ctx);
XMapWindow(dpy, win);
glXMakeCurrent(dpy, win, ctx);
diff --git a/progs/xdemos/glxswapcontrol.c b/progs/xdemos/glxswapcontrol.c
index d9be984be5..e429d58ecc 100644
--- a/progs/xdemos/glxswapcontrol.c
+++ b/progs/xdemos/glxswapcontrol.c
@@ -814,6 +814,11 @@ main(int argc, char *argv[])
init();
+ /* Set initial projection/viewing transformation.
+ * same as glxgears.c
+ */
+ reshape(300, 300);
+
event_loop(dpy, win);
glXDestroyContext(dpy, ctx);
diff --git a/progs/xdemos/offset.c b/progs/xdemos/offset.c
index 3e92e68daa..0ad9147aea 100644
--- a/progs/xdemos/offset.c
+++ b/progs/xdemos/offset.c
@@ -71,12 +71,12 @@ typedef Vertex Quad[4];
/* data to define the six faces of a unit cube */
Quad quads[MAXQUAD] = {
- { {0,0,0}, {1,0,0}, {1,1,0}, {0,1,0} },
- { {0,0,1}, {1,0,1}, {1,1,1}, {0,1,1} },
- { {0,0,0}, {1,0,0}, {1,0,1}, {0,0,1} },
- { {0,1,0}, {1,1,0}, {1,1,1}, {0,1,1} },
- { {0,0,0}, {0,0,1}, {0,1,1}, {0,1,0} },
- { {1,0,0}, {1,0,1}, {1,1,1}, {1,1,0} }
+ { {0,0,0}, {0,0,1}, {0,1,1}, {0,1,0} }, /* x = 0 */
+ { {0,0,0}, {1,0,0}, {1,0,1}, {0,0,1} }, /* y = 0 */
+ { {0,0,0}, {1,0,0}, {1,1,0}, {0,1,0} }, /* z = 0 */
+ { {1,0,0}, {1,0,1}, {1,1,1}, {1,1,0} }, /* x = 1 */
+ { {0,1,0}, {1,1,0}, {1,1,1}, {0,1,1} }, /* y = 1 */
+ { {0,0,1}, {1,0,1}, {1,1,1}, {0,1,1} } /* z = 1 */
};
#define WIREFRAME 0
@@ -86,7 +86,7 @@ static void error(const char* prog, const char* msg);
static void cubes(int mx, int my, int mode);
static void fill(Quad quad);
static void outline(Quad quad);
-static void draw_hidden(Quad quad, int mode);
+static void draw_hidden(Quad quad, int mode, int face);
static void process_input(Display *dpy, Window win);
static int query_extension(char* extName);
@@ -101,6 +101,7 @@ int main(int argc, char** argv) {
XSetWindowAttributes swa;
Window win;
GLXContext cx;
+ GLint z;
dpy = XOpenDisplay(0);
if (!dpy) error(argv[0], "can't open display");
@@ -134,13 +135,16 @@ int main(int argc, char** argv) {
/* set up viewing parameters */
glMatrixMode(GL_PROJECTION);
- gluPerspective(20, 1, 0.1, 20);
+ gluPerspective(20, 1, 10, 20);
glMatrixMode(GL_MODELVIEW);
glTranslatef(0, 0, -15);
/* set other relevant state information */
glEnable(GL_DEPTH_TEST);
+ glGetIntegerv(GL_DEPTH_BITS, &z);
+ printf("GL_DEPTH_BITS = %d\n", z);
+
#ifdef GL_EXT_polygon_offset
printf("using 1.0 offset extension\n");
glPolygonOffsetEXT( 1.0, 0.00001 );
@@ -160,6 +164,7 @@ int main(int argc, char** argv) {
static void
draw_scene(int mx, int my) {
+ glClearColor(0.25, 0.25, 0.25, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
@@ -206,7 +211,7 @@ cubes(int mx, int my, int mode) {
glTranslatef(x, y, z);
glScalef(0.8, 0.8, 0.8);
for (i = 0; i < MAXQUAD; i++)
- draw_hidden(quads[i], mode);
+ draw_hidden(quads[i], mode, i);
glPopMatrix();
}
}
@@ -236,13 +241,18 @@ outline(Quad quad) {
}
static void
-draw_hidden(Quad quad, int mode) {
+draw_hidden(Quad quad, int mode, int face) {
+ static const GLfloat colors[3][3] = {
+ {0.5, 0.5, 0.0},
+ {0.8, 0.5, 0.0},
+ {0.0, 0.5, 0.8}
+ };
if (mode == HIDDEN_LINE) {
- glColor3f(0, 0, 0);
+ glColor3fv(colors[face % 3]);
fill(quad);
}
- /* draw the outline using white, optionally fill the interior with black */
+ /* draw the outline using white */
glColor3f(1, 1, 1);
outline(quad);
}
diff --git a/progs/xdemos/pbdemo.c b/progs/xdemos/pbdemo.c
index efdfdfa452..7db0017b33 100644
--- a/progs/xdemos/pbdemo.c
+++ b/progs/xdemos/pbdemo.c
@@ -93,7 +93,7 @@ MakePbuffer( Display *dpy, int screen, int width, int height )
None
},
{
- /* Single bufferd, without depth buffer */
+ /* Single buffered, without depth buffer */
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT,
GLX_RED_SIZE, 1,
@@ -105,7 +105,7 @@ MakePbuffer( Display *dpy, int screen, int width, int height )
None
},
{
- /* Double bufferd, without depth buffer */
+ /* Double buffered, without depth buffer */
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT,
GLX_RED_SIZE, 1,
@@ -130,9 +130,8 @@ MakePbuffer( Display *dpy, int screen, int width, int height )
/* Get list of possible frame buffer configurations */
fbConfigs = ChooseFBConfig(dpy, screen, fbAttribs[attempt], &nConfigs);
if (nConfigs==0 || !fbConfigs) {
- printf("Error: glXChooseFBConfig failed\n");
- XCloseDisplay(dpy);
- return 0;
+ printf("Note: glXChooseFBConfig(%s) failed\n", fbString[attempt]);
+ continue;
}
#if 0 /*DEBUG*/
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-17 16:34:33 +0000