diff options
Diffstat (limited to 'progs/demos')
| -rw-r--r-- | progs/demos/.gitignore | 14 | ||||
| -rw-r--r-- | progs/demos/Makefile | 17 | ||||
| -rw-r--r-- | progs/demos/copypix.c | 248 | ||||
| -rw-r--r-- | progs/demos/cubemap.c | 51 | ||||
| -rw-r--r-- | progs/demos/shadowtex.c | 62 | ||||
| -rw-r--r-- | progs/demos/streaming_rect.c | 25 |
6 files changed, 380 insertions, 37 deletions
diff --git a/progs/demos/.gitignore b/progs/demos/.gitignore index f764b3d117..ad20499f1e 100644 --- a/progs/demos/.gitignore +++ b/progs/demos/.gitignore @@ -1,17 +1,25 @@ .cvsignore arbfplight +arbfslight arbocclude bounce clearspd +copypix cubemap drawpix +engine +extfuncs.h fire +fogcoord fplight +fslight gamma +gearbox gears geartrain glinfo gloss +glslnoise gltestperf glutfx ipers @@ -33,8 +41,11 @@ renormal shadowtex showbuffer.c showbuffer.h +singlebuffer spectex +spriteblast stex3d +streaming_rect teapot terrain tessdemo @@ -42,7 +53,10 @@ 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; diff --git a/progs/demos/shadowtex.c b/progs/demos/shadowtex.c index 59253e8c1e..c2d40bda74 100644 --- a/progs/demos/shadowtex.c +++ b/progs/demos/shadowtex.c @@ -84,6 +84,7 @@ static const char *FragProgNames[] = { "program with \"OPTION ARB_fragment_program_shadow\"", }; +static GLboolean HaveShadow = GL_FALSE; static GLboolean HaveFBO = GL_FALSE; static GLboolean UseFBO = GL_FALSE; static GLboolean HaveVP = GL_FALSE; @@ -529,7 +530,10 @@ ShowShadowMap(void) DisableTexgen(); /* interpret texture's depth values as luminance values */ - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE); + if (HaveShadow) { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE); + } + glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE_ARB, GL_LUMINANCE); glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); @@ -596,7 +600,9 @@ Display(void) } if (DisplayMode == SHOW_DEPTH_MAPPING) { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE); + if (HaveShadow) { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE); + } glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); glEnable(GL_TEXTURE_2D); @@ -614,8 +620,10 @@ Display(void) } else { assert(DisplayMode == SHOW_SHADOWS); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, - GL_COMPARE_R_TO_TEXTURE_ARB); + if (HaveShadow) { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, + GL_COMPARE_R_TO_TEXTURE_ARB); + } if (curr_frag > 0) { glEnable(GL_FRAGMENT_PROGRAM_ARB); @@ -723,6 +731,10 @@ Key(unsigned char key, int x, int y) break; case 'M': curr_frag = (1 + curr_frag) % max_frag; + if (!HaveShadow && (curr_frag == 0)) { + curr_frag = 1; + } + printf("Using fragment %s\n", FragProgNames[curr_frag]); if (HaveFP) { @@ -740,8 +752,10 @@ Key(unsigned char key, int x, int y) if (Operator >= 8) Operator = 0; printf("Operator: %s\n", OperatorName[Operator]); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, - OperatorFunc[Operator]); + if (HaveShadow) { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, + OperatorFunc[Operator]); + } } break; case 'p': @@ -858,17 +872,31 @@ Init(void) { static const GLfloat borderColor[4] = {1.0, 0.0, 0.0, 0.0}; - if (!glutExtensionSupported("GL_ARB_depth_texture") || - !glutExtensionSupported("GL_ARB_shadow")) { - printf("Sorry, this demo requires the GL_ARB_depth_texture and GL_ARB_shadow extensions\n"); + if (!glutExtensionSupported("GL_ARB_depth_texture")) { + printf("Sorry, this demo requires the GL_ARB_depth_texture extension\n"); exit(1); } - printf("Using GL_ARB_depth_texture and GL_ARB_shadow\n"); + HaveShadow = glutExtensionSupported("GL_ARB_shadow"); HaveVP = glutExtensionSupported("GL_ARB_vertex_program"); HaveFP = glutExtensionSupported("GL_ARB_fragment_program"); HaveFP_Shadow = glutExtensionSupported("GL_ARB_fragment_program_shadow"); + if (!HaveShadow && !HaveFP) { + printf("Sorry, this demo requires either the GL_ARB_shadow extension " + "or the GL_ARB_fragment_program extension\n"); + exit(1); + } + + printf("Using GL_ARB_depth_texture\n"); + if (HaveShadow) { + printf("and GL_ARB_shadow\n"); + } + + if (HaveFP) { + printf("and GL_ARB_fragment_program\n"); + } + HaveShadowAmbient = glutExtensionSupported("GL_ARB_shadow_ambient"); if (HaveShadowAmbient) { printf("and GL_ARB_shadow_ambient\n"); @@ -895,9 +923,12 @@ Init(void) glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, borderColor); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, - GL_COMPARE_R_TO_TEXTURE_ARB); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL); + + if (HaveShadow) { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, + GL_COMPARE_R_TO_TEXTURE_ARB); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL); + } if (HaveShadowAmbient) { glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB, 0.3); @@ -954,6 +985,11 @@ Init(void) max_frag = 3; } + if (!HaveShadow) { + curr_frag = 1; + glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, frag_progs[curr_frag]); + } + glEnable(GL_DEPTH_TEST); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); diff --git a/progs/demos/streaming_rect.c b/progs/demos/streaming_rect.c index 86e00803c0..4c1d8535fd 100644 --- a/progs/demos/streaming_rect.c +++ b/progs/demos/streaming_rect.c @@ -1,13 +1,9 @@ - /* - * GL_ARB_multitexture demo + * GL_ARB_pixel_buffer_object test * * Command line options: - * -info print GL implementation information - * + * -w WIDTH -h HEIGHT sets window size * - * Brian Paul November 1998 This program is in the public domain. - * Modified on 12 Feb 2002 for > 2 texture units. */ #define GL_GLEXT_PROTOTYPES @@ -25,6 +21,8 @@ #define PBO 11 #define QUIT 100 +static GLuint DrawPBO; + static GLboolean Animate = GL_TRUE; static GLboolean use_pbo = 1; static GLboolean whole_rect = 1; @@ -49,7 +47,7 @@ static void Idle( void ) } } -static int max( int a, int b ) { return a > b ? a : b; } +/*static int max( int a, int b ) { return a > b ? a : b; }*/ static int min( int a, int b ) { return a < b ? a : b; } static void DrawObject() @@ -62,6 +60,7 @@ static void DrawObject() * release the old copy of the texture and allocate a new one * without waiting for outstanding rendering to complete. */ + glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, DrawPBO); glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_EXT, size, NULL, GL_STREAM_DRAW_ARB); { @@ -69,7 +68,7 @@ static void DrawObject() printf("char %d\n", (unsigned char)(Drift * 255)); - memset(image, size, (unsigned char)(Drift * 255)); + memset(image, (unsigned char)(Drift * 255), size); glUnmapBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT); } @@ -86,7 +85,9 @@ static void DrawObject() if (image == NULL) image = malloc(size); - memset(image, size, (unsigned char)(Drift * 255)); + glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, 0); + + memset(image, (unsigned char)(Drift * 255), size); /* BGRA should be the fast path for regular uploads as well. */ @@ -227,12 +228,12 @@ static void SpecialKey( int key, int x, int y ) static void Init( int argc, char *argv[] ) { const char *exten = (const char *) glGetString(GL_EXTENSIONS); - GLuint texObj, DrawPBO; + GLuint texObj; GLint size; - if (!strstr(exten, "GL_ARB_multitexture")) { - printf("Sorry, GL_ARB_multitexture not supported by this renderer.\n"); + if (!strstr(exten, "GL_ARB_pixel_buffer_object")) { + printf("Sorry, GL_ARB_pixel_buffer_object not supported by this renderer.\n"); exit(1); } |