diff options
author | Brian Paul <[email protected]> | 2008-10-09 19:50:57 -0600 |
---|---|---|
committer | Brian Paul <[email protected]> | 2008-10-09 19:51:26 -0600 |
commit | 02aea66b1ad7703f9c46e939eaa2d7aa91073c39 (patch) | |
tree | fbac2ba56abef327ecea46c772fb8c247404e5e5 /progs/trivial/tri-mask-tri.c | |
parent | 583098e3cb602fd9810a7c65718155fd9b0b3fda (diff) |
mesa: toggle colormask values with r/g/b keys in tri-mask-tri.c
Plus misc clean-up.
Diffstat (limited to 'progs/trivial/tri-mask-tri.c')
-rw-r--r-- | progs/trivial/tri-mask-tri.c | 123 |
1 files changed, 63 insertions, 60 deletions
diff --git a/progs/trivial/tri-mask-tri.c b/progs/trivial/tri-mask-tri.c index 38ecd20a739..8333f7ed8ab 100644 --- a/progs/trivial/tri-mask-tri.c +++ b/progs/trivial/tri-mask-tri.c @@ -28,48 +28,53 @@ #include <GL/glut.h> -#define CI_OFFSET_1 16 -#define CI_OFFSET_2 32 - GLint Width = 250, Height = 250; - GLenum doubleBuffer; +GLint Win; +GLboolean Rmask = GL_TRUE, Gmask = GL_FALSE, Bmask = GL_TRUE; + static void Init(void) { fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - - glClearColor(0.0, 0.0, 1.0, 0.0); + glClearColor(0.0, 0.0, 1.0, 0.0); } static void Reshape(int width, int height) { - - glViewport(0, 0, (GLint)width, (GLint)height); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); - glMatrixMode(GL_MODELVIEW); + glViewport(0, 0, (GLint)width, (GLint)height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); } static void Key(unsigned char key, int x, int y) { - - switch (key) { - case 27: - exit(1); - default: - return; - } - - glutPostRedisplay(); + switch (key) { + case 'r': + Rmask = !Rmask; + break; + case 'g': + Gmask = !Gmask; + break; + case 'b': + Bmask = !Bmask; + break; + case 27: + glutDestroyWindow(Win); + exit(1); + default: + return; + } + glutPostRedisplay(); } static void Draw(void) { + printf("ColorMask = %d, %d, %d\n", Rmask, Gmask, Bmask); glColorMask(1,1,1,1); glClear(GL_COLOR_BUFFER_BIT); @@ -82,7 +87,7 @@ static void Draw(void) glVertex3f(-0.9, 0.0, -30.0); glEnd(); - glColorMask(1,0,1,0); + glColorMask(Rmask, Gmask, Bmask, 0); /* left triangle: white&mask: purple middle region: white */ glBegin(GL_TRIANGLES); @@ -103,48 +108,46 @@ static void Draw(void) static GLenum Args(int argc, char **argv) { - GLint i; - - doubleBuffer = GL_FALSE; - - for (i = 1; i < argc; i++) { - if (strcmp(argv[i], "-sb") == 0) { - doubleBuffer = GL_FALSE; - } else if (strcmp(argv[i], "-db") == 0) { - doubleBuffer = GL_TRUE; - } else { - fprintf(stderr, "%s (Bad option).\n", argv[i]); - return GL_FALSE; - } - } - return GL_TRUE; + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } + else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } + else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; } + int main(int argc, char **argv) { - GLenum type; - - glutInit(&argc, argv); + GLenum type; - if (Args(argc, argv) == GL_FALSE) { - exit(1); - } + glutInit(&argc, argv); - glutInitWindowPosition(100, 0); glutInitWindowSize(Width, Height); - - type = GLUT_RGB; - type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; - glutInitDisplayMode(type); - - if (glutCreateWindow("First Tri") == GL_FALSE) { - exit(1); - } - - Init(); + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } - glutReshapeFunc(Reshape); - glutKeyboardFunc(Key); - glutDisplayFunc(Draw); - glutMainLoop(); - return 0; + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + + glutInitWindowPosition(100, 0); glutInitWindowSize(Width, Height); + glutInitDisplayMode(type); + Win = glutCreateWindow("First Tri"); + Init(); + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; } |