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authorEric Anholt <eric@anholt.net>2010-05-21 09:32:38 -0700
committerEric Anholt <eric@anholt.net>2010-05-21 12:20:39 -0700
commit68fc4b415e322f6744299e39864fbc377c6eff74 (patch)
tree4bafffd8b0105174f3c5c0ae327a005be9145990 /progs/fpglsl/fp-tri.c
parente4f4489e3fc0b36d72821b55794fb843b2b7fa5f (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/fpglsl/fp-tri.c')
-rw-r--r--progs/fpglsl/fp-tri.c420
1 files changed, 0 insertions, 420 deletions
diff --git a/progs/fpglsl/fp-tri.c b/progs/fpglsl/fp-tri.c
deleted file mode 100644
index 8af09845dd..0000000000
--- a/progs/fpglsl/fp-tri.c
+++ /dev/null
@@ -1,420 +0,0 @@
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#ifndef WIN32
-#include <unistd.h>
-#include <signal.h>
-#endif
-
-#include <GL/glew.h>
-#include <GL/glut.h>
-
-#include "readtex.c"
-
-
-#define TEXTURE_FILE "../images/bw.rgb"
-
-unsigned show_fps = 0;
-unsigned int frame_cnt = 0;
-void alarmhandler(int);
-static const char *filename = NULL;
-
-static GLuint fragShader;
-static GLuint vertShader;
-static GLuint program;
-
-
-static void usage(char *name)
-{
- fprintf(stderr, "usage: %s [ options ] shader_filename\n", name);
-#ifndef WIN32
- fprintf(stderr, "\n" );
- fprintf(stderr, "options:\n");
- fprintf(stderr, " -fps show frames per second\n");
-#endif
-}
-
-#ifndef WIN32
-void alarmhandler (int sig)
-{
- if (sig == SIGALRM) {
- printf("%d frames in 5.0 seconds = %.3f FPS\n", frame_cnt,
- frame_cnt / 5.0);
-
- frame_cnt = 0;
- }
- signal(SIGALRM, alarmhandler);
- alarm(5);
-}
-#endif
-
-
-
-
-static void load_and_compile_shader(GLuint shader, const char *text)
-{
- GLint stat;
-
- glShaderSource(shader, 1, (const GLchar **) &text, NULL);
-
- glCompileShader(shader);
-
- glGetShaderiv(shader, GL_COMPILE_STATUS, &stat);
- if (!stat) {
- GLchar log[1000];
- GLsizei len;
- glGetShaderInfoLog(shader, 1000, &len, log);
- fprintf(stderr, "fp-tri: problem compiling shader:\n%s\n", log);
- exit(1);
- }
-}
-
-static void read_shader(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, "fp-tri: Unable to open shader file %s\n", filename);
- exit(1);
- }
-
- n = fread(buffer, 1, max, f);
- printf("fp-tri: read %d bytes from shader file %s\n", n, filename);
- if (n > 0) {
- buffer[n] = 0;
- load_and_compile_shader(shader, buffer);
- }
-
- fclose(f);
- free(buffer);
-}
-
-static void check_link(GLuint prog)
-{
- GLint stat;
- glGetProgramiv(prog, GL_LINK_STATUS, &stat);
- if (!stat) {
- GLchar log[1000];
- GLsizei len;
- glGetProgramInfoLog(prog, 1000, &len, log);
- fprintf(stderr, "Linker error:\n%s\n", log);
- }
-}
-
-static void setup_uniforms()
-{
- {
- GLint loc1f = glGetUniformLocationARB(program, "Offset1f");
- GLint loc2f = glGetUniformLocationARB(program, "Offset2f");
- GLint loc4f = glGetUniformLocationARB(program, "Offset4f");
- GLfloat vecKer[] =
- { 1.0, 0.0, 0.0, 1.0,
- 0.0, 1.0, 0.0, 1.0,
- 1.0, 0.0, 0.0, 1.0,
- 0.0, 0.0, 0.0, 1.0
- };
- if (loc1f >= 0)
- glUniform1fv(loc1f, 16, vecKer);
-
- if (loc2f >= 0)
- glUniform2fv(loc2f, 8, vecKer);
-
- if (loc4f >= 0)
- glUniform4fv(loc4f, 4, vecKer);
-
- }
-
- {
- GLint loci = glGetUniformLocationARB(program, "KernelSizeInt");
- if (loci >= 0)
- glUniform1i(loci, 4);
- }
- {
- GLint loc1f = glGetUniformLocationARB(program, "KernelValue1f");
- GLint loc2f = glGetUniformLocationARB(program, "KernelValue2f");
- GLint loc4f = glGetUniformLocationARB(program, "KernelValue4f");
- GLfloat vecKer[] =
- { 1.0, 0.0, 0.0, 0.25,
- 0.0, 1.0, 0.0, 0.25,
- 0.0, 0.0, 1.0, 0.25,
- 0.0, 0.0, 0.0, 0.25,
- 0.5, 0.0, 0.0, 0.35,
- 0.0, 0.5, 0.0, 0.35,
- 0.0, 0.0, 0.5, 0.35,
- 0.0, 0.0, 0.0, 0.35
- };
- if (loc1f >= 0)
- glUniform1fv(loc1f, 16, vecKer);
-
- if (loc2f >= 0)
- glUniform2fv(loc2f, 8, vecKer);
-
- if (loc4f >= 0)
- glUniform4fv(loc4f, 4, vecKer);
- }
-}
-
-static void prepare_shaders()
-{
- static const char *fragShaderText =
- "void main() {\n"
- " gl_FragColor = gl_Color;\n"
- "}\n";
- static const char *vertShaderText =
- "void main() {\n"
- " gl_FrontColor = gl_Color;\n"
- " gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
- "}\n";
- fragShader = glCreateShader(GL_FRAGMENT_SHADER);
- if (filename)
- read_shader(fragShader, filename);
- else
- load_and_compile_shader(fragShader, fragShaderText);
-
-
- vertShader = glCreateShader(GL_VERTEX_SHADER);
- load_and_compile_shader(vertShader, vertShaderText);
-
- program = glCreateProgram();
- glAttachShader(program, fragShader);
- glAttachShader(program, vertShader);
- glLinkProgram(program);
- check_link(program);
- glUseProgram(program);
-
- setup_uniforms();
-}
-
-#define LEVELS 8
-#define SIZE (1<<LEVELS)
-static int TexWidth = SIZE, TexHeight = SIZE;
-
-
-static void
-ResetTextureLevel( int i )
-{
- GLubyte tex2d[SIZE*SIZE][4];
-
- {
- GLint Width = TexWidth / (1 << i);
- GLint Height = TexHeight / (1 << i);
- GLint s, t;
-
- for (s = 0; s < Width; s++) {
- for (t = 0; t < Height; t++) {
- tex2d[t*Width+s][0] = ((s / 16) % 2) ? 0 : 255;
- tex2d[t*Width+s][1] = ((t / 16) % 2) ? 0 : 255;
- tex2d[t*Width+s][2] = 128;
- tex2d[t*Width+s][3] = 255;
- }
- }
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- glTexImage2D(GL_TEXTURE_2D, i, GL_RGB, Width, Height, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, tex2d);
- }
-}
-
-
-static void
-ResetTexture( void )
-{
- int i;
-
- for (i = 0; i <= LEVELS; i++)
- {
- ResetTextureLevel(i);
- }
-}
-
-static void Init( void )
-{
- GLuint Texture;
-
- /* Load texture */
- glGenTextures(1, &Texture);
- glBindTexture(GL_TEXTURE_2D, Texture);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) {
- printf("Error: couldn't load texture image file %s\n", TEXTURE_FILE);
- exit(1);
- }
-
-
- glGenTextures(1, &Texture);
- glActiveTextureARB(GL_TEXTURE0_ARB + 1);
- glBindTexture(GL_TEXTURE_2D, Texture);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- {
- GLubyte data[32][32];
- int width = 32;
- int height = 32;
- int i;
- int j;
-
- for (i = 0; i < 32; i++)
- for (j = 0; j < 32; j++)
- {
- /**
- ** +-----------+
- ** | W |
- ** | +-----+ |
- ** | | | |
- ** | | B | |
- ** | | | |
- ** | +-----+ |
- ** | |
- ** +-----------+
- **/
- int i2 = i - height / 2;
- int j2 = j - width / 2;
- int h8 = height / 8;
- int w8 = width / 8;
- if ( -h8 <= i2 && i2 <= h8 && -w8 <= j2 && j2 <= w8 ) {
- data[i][j] = 0x00;
- } else if ( -2 * h8 <= i2 && i2 <= 2 * h8 && -2 * w8 <= j2 && j2 <= 2 * w8 ) {
- data[i][j] = 0x55;
- } else if ( -3 * h8 <= i2 && i2 <= 3 * h8 && -3 * w8 <= j2 && j2 <= 3 * w8 ) {
- data[i][j] = 0xaa;
- } else {
- data[i][j] = 0xff;
- }
- }
-
- glTexImage2D( GL_TEXTURE_2D, 0,
- GL_ALPHA8,
- 32, 32, 0,
- GL_ALPHA, GL_UNSIGNED_BYTE, data );
- }
-
- glGenTextures(1, &Texture);
- glActiveTextureARB(GL_TEXTURE0_ARB + 2);
- glBindTexture(GL_TEXTURE_2D, Texture);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- ResetTexture();
-
- glClearColor(.1, .3, .5, 0);
-}
-
-
-
-
-static void args(int argc, char *argv[])
-{
- GLint i;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-fps") == 0) {
- show_fps = 1;
- }
- else if (i == argc - 1) {
- filename = argv[i];
- }
- else {
- usage(argv[0]);
- exit(1);
- }
- }
-}
-
-
-
-
-
-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);
-}
-
-static void CleanUp(void)
-{
- glDeleteShader(fragShader);
- glDeleteShader(vertShader);
- glDeleteProgram(program);
-}
-
-static void Key(unsigned char key, int x, int y)
-{
-
- switch (key) {
- case 27:
- CleanUp();
- exit(1);
- default:
- break;
- }
-
- glutPostRedisplay();
-}
-
-static void Display(void)
-{
- glClear(GL_COLOR_BUFFER_BIT);
-
- glUseProgram(program);
- glProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 0, 1.0, 1.0, 0.0, 0.0);
- glProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 1, 0.0, 0.0, 1.0, 1.0);
- glBegin(GL_TRIANGLES);
-
- glColor3f(0,0,1);
- glTexCoord3f(1,1,0);
- glVertex3f( 0.9, -0.9, -30.0);
-
- glColor3f(1,0,0);
- glTexCoord3f(1,-1,0);
- glVertex3f( 0.9, 0.9, -30.0);
-
- glColor3f(0,1,0);
- glTexCoord3f(-1,0,0);
- glVertex3f(-0.9, 0.0, -30.0);
- glEnd();
-
- glFlush();
- if (show_fps) {
- ++frame_cnt;
- glutPostRedisplay();
- }
-}
-
-
-int main(int argc, char **argv)
-{
- glutInit(&argc, argv);
- glutInitWindowPosition(0, 0);
- glutInitWindowSize(250, 250);
- glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH);
- args(argc, argv);
- glutCreateWindow(filename ? filename : "fp-tri");
- glewInit();
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutDisplayFunc(Display);
- prepare_shaders();
- Init();
-#ifndef WIN32
- if (show_fps) {
- signal(SIGALRM, alarmhandler);
- alarm(5);
- }
-#endif
- glutMainLoop();
- return 0;
-}