diff options
Diffstat (limited to 'progs/egl/demo3.c')
| -rw-r--r-- | progs/egl/demo3.c | 65 |
1 files changed, 64 insertions, 1 deletions
diff --git a/progs/egl/demo3.c b/progs/egl/demo3.c index 399e3aad9e4..f6e3bc56e47 100644 --- a/progs/egl/demo3.c +++ b/progs/egl/demo3.c @@ -500,6 +500,58 @@ static void Draw(EGLDisplay dpy, EGLSurface surf) } } +static void +write_ppm(const char *filename, const GLubyte *buffer, int width, int height) +{ + const int binary = 0; + FILE *f = fopen( filename, "w" ); + if (f) { + int i, x, y; + const GLubyte *ptr = buffer; + if (binary) { + fprintf(f,"P6\n"); + fprintf(f,"# ppm-file created by osdemo.c\n"); + fprintf(f,"%i %i\n", width,height); + fprintf(f,"255\n"); + fclose(f); + f = fopen( filename, "ab" ); /* reopen in binary append mode */ + for (y=height-1; y>=0; y--) { + for (x=0; x<width; x++) { + i = (y*width + x) * 4; + fputc(ptr[i], f); /* write red */ + fputc(ptr[i+1], f); /* write green */ + fputc(ptr[i+2], f); /* write blue */ + } + } + } + else { + /*ASCII*/ + int counter = 0; + fprintf(f,"P3\n"); + fprintf(f,"# ascii ppm file created by osdemo.c\n"); + fprintf(f,"%i %i\n", width, height); + fprintf(f,"255\n"); + for (y=height-1; y>=0; y--) { + for (x=0; x<width; x++) { + i = (y*width + x) * 4; + fprintf(f, " %3d %3d %3d", ptr[i], ptr[i+1], ptr[i+2]); + counter++; + if (counter % 5 == 0) + fprintf(f, "\n"); + } + } + } + fclose(f); + } +} + +#include "../src/egl/main/egldisplay.h" + +typedef struct fb_display +{ + _EGLDisplay Base; /* base class/object */ + void *pFB; +} fbDisplay; int @@ -561,9 +613,20 @@ main(int argc, char *argv[]) Reshape(1024, 768); glDrawBuffer( GL_FRONT ); + glClearColor( 0, + 1.0, + 0, + 1); - Draw(d, screen_surf); + glClear( GL_COLOR_BUFFER_BIT ); + + doubleBuffer = 1; + glDrawBuffer( GL_BACK ); + Draw(d, screen_surf); + + write_ppm("dump.ppm", ((struct fb_display *)_eglLookupDisplay(d))->pFB, 1024, 768); + eglDestroySurface(d, screen_surf); eglDestroyContext(d, ctx); eglTerminate(d); |