diff options
author | Eric Anholt <[email protected]> | 2010-05-21 09:32:38 -0700 |
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committer | Eric Anholt <[email protected]> | 2010-05-21 12:20:39 -0700 |
commit | 68fc4b415e322f6744299e39864fbc377c6eff74 (patch) | |
tree | 4bafffd8b0105174f3c5c0ae327a005be9145990 /progs/glsl/fragcoord.c | |
parent | e4f4489e3fc0b36d72821b55794fb843b2b7fa5f (diff) |
Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.
The remaining programs are ones I've had difficulty finding a build
environment for to make the build system or are unit tests that should
probably live next to their code instead. Hopefully people can bring
over the build for remaining pieces they care about.
Diffstat (limited to 'progs/glsl/fragcoord.c')
-rw-r--r-- | progs/glsl/fragcoord.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/progs/glsl/fragcoord.c b/progs/glsl/fragcoord.c deleted file mode 100644 index 3dfcec87a56..00000000000 --- a/progs/glsl/fragcoord.c +++ /dev/null @@ -1,181 +0,0 @@ -/** - * Test GLSL gl_FragCoord fragment program attribute. - * Color the quad's fragments according to their window position. - * - * Brian Paul - * 20 Nov 2008 - */ - - -#include <assert.h> -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glew.h> -#include <GL/glut.h> -#include "shaderutil.h" - - -static GLint WinWidth = 200, WinHeight = 200; -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 PosX = 0.0, PosY = 0.0; - - -static void -Idle(void) -{ - float r = (WinWidth < WinHeight) ? WinWidth : WinHeight; - float a = glutGet(GLUT_ELAPSED_TIME) * 0.001; - r *= 0.25; - PosX = WinWidth / 2 + r * cos(a); - PosY = WinHeight / 2 + r * sin(a); - - glutPostRedisplay(); -} - - -static void -Redisplay(void) -{ - glClear(GL_COLOR_BUFFER_BIT); - - glPushMatrix(); - glTranslatef(PosX, PosY, 0.0); -#if 0 - glBegin(GL_POLYGON); - glVertex2f(-50, -50); - glVertex2f( 50, -50); - glVertex2f( 50, 50); - glVertex2f(-50, 50); - glEnd(); -#else - glutSolidSphere(50, 20, 10); -#endif - glPopMatrix(); - - glutSwapBuffers(); -} - - -static void -Reshape(int width, int height) -{ - glViewport(0, 0, width, height); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(0, width, 0, height, -55, 55); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - - WinWidth = width; - WinHeight = height; -} - - -static void -CleanUp(void) -{ - glDeleteShader(fragShader); - glDeleteShader(vertShader); - glDeleteProgram(program); - glutDestroyWindow(win); -} - - -static void -Key(unsigned char key, int x, int y) -{ - (void) x; - (void) y; - - switch(key) { - case ' ': - case 'a': - Anim = !Anim; - glutIdleFunc(Anim ? Idle : NULL); - break; - case 27: - CleanUp(); - exit(0); - break; - } - glutPostRedisplay(); -} - - -static void -Init(void) -{ - static const char *fragShaderText = - "void main() { \n" - " vec4 scale = vec4(.005, 0.005, 0.5, 1.0);\n" - " gl_FragColor = gl_FragCoord * scale; \n" - "}\n"; - static const char *vertShaderText = - "void main() {\n" - " gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n" - "}\n"; - - if (!ShadersSupported()) - exit(1); - - vertShader = CompileShaderText(GL_VERTEX_SHADER, vertShaderText); - fragShader = CompileShaderText(GL_FRAGMENT_SHADER, fragShaderText); - program = LinkShaders(vertShader, fragShader); - - glUseProgram(program); - - /*assert(glGetError() == 0);*/ - - glClearColor(0.3f, 0.3f, 0.3f, 0.0f); - - printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER)); - - assert(glIsProgram(program)); - assert(glIsShader(fragShader)); - assert(glIsShader(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); - glutInitWindowSize(WinWidth, WinHeight); - glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE); - win = glutCreateWindow(argv[0]); - glewInit(); - glutReshapeFunc(Reshape); - glutKeyboardFunc(Key); - glutDisplayFunc(Redisplay); - ParseOptions(argc, argv); - Init(); - glutIdleFunc(Anim ? Idle : NULL); - glutMainLoop(); - return 0; -} |