diff options
author | Brian Paul <[email protected]> | 2009-02-09 09:22:22 -0700 |
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committer | Brian Paul <[email protected]> | 2009-02-09 09:22:22 -0700 |
commit | e97681c7f551a2a2a6bd5eff0f4192a870c816c0 (patch) | |
tree | dff2bf0e6d22efb92af131f64be0621ed316977c /progs/trivial/flat-clip.c | |
parent | 1a46c8a062aea59de5cf55881104489db5d609e5 (diff) | |
parent | b907d4cd8fafe719b4f87d877562829548937485 (diff) |
mesa: merge gallium-0.2 into gallium-master-merge
Merge commit 'origin/gallium-0.2' into gallium-master-merge
Conflicts:
Makefile
docs/relnotes-7.4.html
docs/relnotes.html
src/mesa/drivers/dri/i965/brw_wm.h
src/mesa/main/imports.c
src/mesa/main/mtypes.h
src/mesa/main/texcompress.c
src/mesa/main/texenvprogram.c
src/mesa/main/version.h
src/mesa/vbo/vbo_exec_api.c
src/mesa/vbo/vbo_save_draw.c
Diffstat (limited to 'progs/trivial/flat-clip.c')
-rw-r--r-- | progs/trivial/flat-clip.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/progs/trivial/flat-clip.c b/progs/trivial/flat-clip.c new file mode 100644 index 00000000000..dbe17a342eb --- /dev/null +++ b/progs/trivial/flat-clip.c @@ -0,0 +1,151 @@ +/** + * Test flat shading and clipping. + * + * Brian Paul + * 30 August 2007 + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glut.h> + +static int Win; +static GLfloat Scale = 2.0, Zrot = 50; +static GLenum Mode = GL_LINE_LOOP; +static GLboolean Smooth = 0; +static GLenum PolygonMode = GL_FILL; + + +static void +Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + if (Smooth) + glShadeModel(GL_SMOOTH); + else + glShadeModel(GL_FLAT); + + glPushMatrix(); + glScalef(Scale, Scale, 1); + glRotatef(Zrot, 0, 0, 1); + + glPolygonMode(GL_FRONT_AND_BACK, PolygonMode); + + glBegin(Mode); + glColor3f(1, 0, 0); + glVertex2f(-1, -1); + glColor3f(0, 1, 0); + glVertex2f( 2, -1); + glColor3f(0, 0, 1); + glVertex2f( 0, 1); + glEnd(); + + glPushMatrix(); + glScalef(0.9, 0.9, 1); + glBegin(Mode); + glColor3f(1, 0, 0); + glVertex2f( 0, 1); + + glColor3f(0, 0, 1); + glVertex2f( 2, -1); + + glColor3f(0, 1, 0); + glVertex2f(-1, -1); + + glEnd(); + glPopMatrix(); + + glPopMatrix(); + + glutSwapBuffers(); +} + + +static void +Reshape(int width, int 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(0.0, 0.0, -15.0); +} + + +static void +Key(unsigned char key, int x, int y) +{ + (void) x; + (void) y; + switch (key) { + case 'p': + if (Mode == GL_TRIANGLES) + Mode = GL_LINE_LOOP; + else + Mode = GL_TRIANGLES; + break; + case 'f': + if (PolygonMode == GL_POINT) + PolygonMode = GL_LINE; + else if (PolygonMode == GL_LINE) + PolygonMode = GL_FILL; + else + PolygonMode = GL_POINT; + printf("PolygonMode = 0x%x\n", PolygonMode); + break; + case 'r': + Zrot -= 5.0; + break; + case 'R': + Zrot += 5.0; + break; + case 'z': + Scale *= 1.1; + break; + case 'Z': + Scale /= 1.1; + break; + case 's': + Smooth = !Smooth; + break; + case 27: + glutDestroyWindow(Win); + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void +Init(void) +{ + printf("Usage:\n"); + printf(" z/Z: change triangle size\n"); + printf(" r/R: rotate\n"); + printf(" p: toggle line/fill mode\n"); + printf(" s: toggle smooth/flat shading\n"); + printf(" f: switch polygon fill mode\n"); +} + + +int +main(int argc, char *argv[]) +{ + glutInit(&argc, argv); + glutInitWindowPosition(0, 0); + glutInitWindowSize(400, 400); + glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); + Win = glutCreateWindow(argv[0]); + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + Init(); + glutMainLoop(); + return 0; +} |