X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fmain.c;h=0992542fa960d3bcf1ef400b3685925b1b4cf98e;hb=7726f59d95180e7fcb985dd94b3815749e102069;hp=21189b6b2c30cacae8a87801632ee3ba4a982725;hpb=f67e90622350af6c05669586e2ea9e5da9fba0bb;p=geometrycompositor.git diff --git a/source/main.c b/source/main.c index 21189b6..0992542 100644 --- a/source/main.c +++ b/source/main.c @@ -2,9 +2,11 @@ #include #include #include +#include #include #include #include +#include #include #include @@ -15,6 +17,7 @@ typedef struct CompositedWindow int y; unsigned width; unsigned height; + unsigned border; int map_state; Damage damage; Pixmap pixmap; @@ -41,6 +44,7 @@ typedef struct CompositedScreen CompositedWindow *windows; unsigned nwindows; unsigned windows_capacity; + int dirty; } CompositedScreen; typedef struct Compositor @@ -52,6 +56,7 @@ typedef struct Compositor PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB; PFNGLXBINDTEXIMAGEEXTPROC glXBindTexImageEXT; PFNGLXRELEASETEXIMAGEEXTPROC glXReleaseTexImageEXT; + int dirty; } Compositor; static const char *vshader = @@ -83,6 +88,15 @@ static const float vertices[] = 1.0f, 0.0f }; +int terminate_requested = 0; + +int x_error_handler(Display *display, XErrorEvent *event) +{ + printf("Ignoring X error %d on resource %lx\n", event->error_code, event->resourceid); + (void)display; + return 0; +} + int with_error(const char *message) { fprintf(stderr, "%s\n", message); @@ -167,12 +181,36 @@ unsigned compile_shader(GLenum type, const char *source) return shader; } -int create_gl_resources(Compositor *compositor, CompositedScreen *screen) +unsigned link_program(unsigned *shaders, unsigned nshaders) { + unsigned program; + unsigned i; int status; char info_log[1024]; GLsizei length; + program = glCreateProgram(); + for(i=0; ishaders[0] = compile_shader(GL_VERTEX_SHADER, vshader); @@ -180,25 +218,12 @@ int create_gl_resources(Compositor *compositor, CompositedScreen *screen) if(!screen->shaders[0] || !screen->shaders[1]) return 0; - screen->program = glCreateProgram(); - glAttachShader(screen->program, screen->shaders[0]); - glAttachShader(screen->program, screen->shaders[1]); - glBindAttribLocation(screen->program, 0, "vertex"); - glLinkProgram(screen->program); + screen->program = link_program(screen->shaders, 2); + if(!screen->program) + return 0; screen->geometry_loc = glGetUniformLocation(screen->program, "geometry"); - glGetProgramiv(screen->program, GL_LINK_STATUS, &status); - glGetProgramInfoLog(screen->program, sizeof(info_log), &length, info_log); - if(!status) - { - fprintf(stderr, "Program link failed:\n%s\n", info_log); - glDeleteProgram(screen->program); - return 0; - } - else if(length) - printf("Program info log:\n%s\n", info_log); - glGenBuffers(1, &screen->vertex_buffer); glBindBuffer(GL_ARRAY_BUFFER, screen->vertex_buffer); glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); @@ -246,20 +271,24 @@ void create_window_pixmap(Compositor *compositor, CompositedScreen *screen, Comp window->glx_pixmap = glXCreatePixmap(compositor->display, screen->fbconfig, window->pixmap, attribs); } -void add_window(Compositor *compositor, CompositedScreen *screen, Window w) +CompositedWindow *add_window(Compositor *compositor, CompositedScreen *screen, Window w) { CompositedWindow *window; XWindowAttributes win_attr; if(w==screen->root || w==screen->overlay) - return; + return NULL; - XGetWindowAttributes(compositor->display, w, &win_attr); + if(!XGetWindowAttributes(compositor->display, w, &win_attr)) + { + printf("XGetWindowAttributes failed; probably the window was already destroyed\n"); + return NULL; + } if(win_attr.class==InputOnly) - return; + return NULL; if(find_window(screen, w)) - return; + return NULL; if(screen->nwindows==screen->windows_capacity) { @@ -274,6 +303,7 @@ void add_window(Compositor *compositor, CompositedScreen *screen, Window w) window->y = win_attr.y; window->width = win_attr.width; window->height = win_attr.height; + window->border = win_attr.border_width; window->map_state = win_attr.map_state; window->damage = XDamageCreate(compositor->display, window->window, XDamageReportNonEmpty); @@ -289,6 +319,66 @@ void add_window(Compositor *compositor, CompositedScreen *screen, Window w) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + return window; +} + +void remove_window(Compositor *compositor, CompositedScreen *screen, CompositedWindow *window, int destroyed) +{ + unsigned i; + + glDeleteTextures(1, &window->texture); + if(!destroyed) + { + XDamageDestroy(compositor->display, window->damage); + if(window->pixmap) + { + glXDestroyPixmap(compositor->display, window->glx_pixmap); + XFreePixmap(compositor->display, window->pixmap); + } + XCompositeUnredirectWindow(compositor->display, window->window, CompositeRedirectManual); + } + + --screen->nwindows; + for(i=window-screen->windows; inwindows; ++i) + screen->windows[i] = screen->windows[i+1]; +} + +CompositedWindow *reorder_window(CompositedScreen *screen, CompositedWindow *window, Window above) +{ + unsigned i, j; + CompositedWindow hold; + + i = window-screen->windows; + if(above) + { + for(j=0; jnwindows; ++j) + if(screen->windows[j].window==above) + break; + + if(j>=screen->nwindows || i==j+1) + return window; + + if(jwindows[i] = screen->windows[i+1]; + } + else + { + for(; i>j; --i) + screen->windows[i] = screen->windows[i-1]; + } + screen->windows[j] = hold; + + return &screen->windows[j]; } CompositedScreen *find_screen_by_root(Compositor *compositor, Window root) @@ -302,6 +392,18 @@ CompositedScreen *find_screen_by_root(Compositor *compositor, Window root) return NULL; } +CompositedScreen *find_screen_by_window(Compositor *compositor, Window w) +{ + unsigned i, j; + + for(i=0; inscreens; ++i) + for(j=0; jscreens[i].nwindows; ++j) + if(compositor->screens[i].windows[j].window==w) + return &compositor->screens[i]; + + return NULL; +} + int initialize_screen(Compositor *compositor, unsigned number) { CompositedScreen *screen; @@ -328,6 +430,7 @@ int initialize_screen(Compositor *compositor, unsigned number) XSelectInput(compositor->display, screen->root, SubstructureNotifyMask); screen->overlay = XCompositeGetOverlayWindow(compositor->display, screen->root); XGetGeometry(compositor->display, screen->overlay, &dummy_root, &x, &y, &screen->width, &screen->height, &border, &depth); + XShapeCombineRectangles(compositor->display, screen->overlay, ShapeInput, 0, 0, NULL, 0, ShapeSet, Unsorted); if(!initialize_gl(compositor, screen)) return 0; @@ -346,6 +449,8 @@ int initialize_screen(Compositor *compositor, unsigned number) XFree(children); + screen->dirty = 1; + return 1; } @@ -361,6 +466,8 @@ int initialize_compositor(Compositor *compositor) if(!compositor->display) return with_error("Could not open X display"); + XSetErrorHandler(&x_error_handler); + if(!XCompositeQueryExtension(compositor->display, &event_base, &error_base)) return with_error("XComposite is required but was not found"); else if(!XCompositeQueryVersion(compositor->display, &major_ver, &minor_ver)) @@ -382,6 +489,13 @@ int initialize_compositor(Compositor *compositor) else if(major_ver<1) return with_error("XDamage 1.0 or later is required"); + if(!XShapeQueryExtension(compositor->display, &event_base, &error_base)) + return with_error("XShape is required but was not found"); + else if(!XShapeQueryVersion(compositor->display, &major_ver, &minor_ver)) + return with_error("Cannot determine XShape version"); + else if(major_ver<1 || (major_ver==1 && minor_ver<1)) + return with_error("XShape 1.1 or later is required"); + compositor->glXCreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)glXGetProcAddress((unsigned char *)"glXCreateContextAttribsARB"); compositor->glXBindTexImageEXT = (PFNGLXBINDTEXIMAGEEXTPROC)glXGetProcAddress((unsigned char *)"glXBindTexImageEXT"); compositor->glXReleaseTexImageEXT = (PFNGLXRELEASETEXIMAGEEXTPROC)glXGetProcAddress((unsigned char *)"glXReleaseTexImageEXT"); @@ -392,25 +506,53 @@ int initialize_compositor(Compositor *compositor) if(!initialize_screen(compositor, i)) return 0; + compositor->dirty = 1; + return 1; } void shutdown_screen(Compositor *compositor, CompositedScreen *screen) { + unsigned i; + + use_gl(compositor, screen); + + for(i=0; inwindows; ++i) + { + glDeleteTextures(1, &screen->windows[i].texture); + if(screen->windows[i].pixmap) + { + glXDestroyPixmap(compositor->display, screen->windows[i].glx_pixmap); + XFreePixmap(compositor->display, screen->windows[i].pixmap); + XDamageDestroy(compositor->display, screen->windows[i].damage); + } + } + + glXMakeContextCurrent(compositor->display, 0, 0, NULL); glXDestroyContext(compositor->display, screen->glx_context); glXDestroyWindow(compositor->display, screen->glx_window); XDestroyWindow(compositor->display, screen->render_window); XCompositeReleaseOverlayWindow(compositor->display, screen->overlay); + + free(screen->windows); } void shutdown_compositor(Compositor *compositor) { unsigned i; - glXMakeContextCurrent(compositor->display, 0, 0, NULL); for(i=0; inscreens; ++i) shutdown_screen(compositor, &compositor->screens[i]); + free(compositor->screens); + + XCloseDisplay(compositor->display); +} + +void mark_dirty(Compositor *compositor, CompositedScreen *screen) +{ + compositor->dirty = 1; + screen->dirty = 1; } void process_create_window_event(Compositor *compositor, XCreateWindowEvent *event) @@ -422,50 +564,160 @@ void process_create_window_event(Compositor *compositor, XCreateWindowEvent *eve add_window(compositor, screen, event->window); } +void process_destroy_window_event(Compositor *compositor, XDestroyWindowEvent *event) +{ + CompositedScreen *screen; + CompositedWindow *window; + + screen = find_screen_by_root(compositor, event->event); + if(!screen) + return; + + window = find_window(screen, event->window); + if(window) + remove_window(compositor, screen, window, 1); +} + void process_map_event(Compositor *compositor, XMapEvent *event) { - CompositedScreen *screen = find_screen_by_root(compositor, event->event); + CompositedScreen *screen; + CompositedWindow *window; + + screen = find_screen_by_root(compositor, event->event); + if(!screen) + return; + + window = find_window(screen, event->window); + if(!window) + return; + + window->map_state = IsViewable; + create_window_pixmap(compositor, screen, window); + + mark_dirty(compositor, screen); +} + +void process_unmap_event(Compositor *compositor, XUnmapEvent *event) +{ + CompositedScreen *screen; + CompositedWindow *window; + + screen = find_screen_by_root(compositor, event->event); if(!screen) return; - CompositedWindow *window = find_window(screen, event->window); + window = find_window(screen, event->window); if(window) + window->map_state = IsUnviewable; + + mark_dirty(compositor, screen); +} + +void process_reparent_event(Compositor *compositor, XReparentEvent *event) +{ + CompositedScreen *screen; + CompositedWindow *window; + + screen = find_screen_by_root(compositor, event->event); + if(!screen) + return; + + if(event->parent==screen->root) + window = add_window(compositor, screen, event->window); + else { - window->map_state = IsViewable; + window = find_window(screen, event->window); + if(!window) + return; + + remove_window(compositor, screen, window, 0); + } + + if(window && window->map_state==IsViewable) + mark_dirty(compositor, screen); +} + +void process_configure_event(Compositor *compositor, XConfigureEvent *event) +{ + CompositedScreen *screen; + CompositedWindow *window; + + screen = find_screen_by_root(compositor, event->event); + if(!screen) + return; + + window = find_window(screen, event->window); + if(!window) + return; + + window->x = event->x; + window->y = event->y; + if((unsigned)event->width!=window->width || (unsigned)event->height!=window->height || (unsigned)event->border_width!=window->border) + { + window->width = event->width; + window->height = event->height; + window->border = event->border_width; create_window_pixmap(compositor, screen, window); } + reorder_window(screen, window, event->above); + + if(window->map_state==IsViewable) + mark_dirty(compositor, screen); } -void process_unmap_event(Compositor *compositor, XUnmapEvent *event) +void process_damage_event(Compositor *compositor, XDamageNotifyEvent *event) { - CompositedScreen *screen = find_screen_by_root(compositor, event->event); + CompositedScreen *screen; + CompositedWindow *window; + + screen = find_screen_by_window(compositor, event->drawable); if(!screen) return; - CompositedWindow *window = find_window(screen, event->window); - if(window) - window->map_state = IsUnviewable; + window = find_window(screen, event->drawable); + if(window->map_state==IsViewable) + mark_dirty(compositor, screen); } -void process_event(Compositor *compositor) +int process_event(Compositor *compositor) { XEvent event; - XNextEvent(compositor->display, &event); + if(compositor->dirty) + { + if(!XCheckMaskEvent(compositor->display, -1, &event)) + return 0; + } + else + XNextEvent(compositor->display, &event); + switch(event.type) { case CreateNotify: process_create_window_event(compositor, &event.xcreatewindow); break; + case DestroyNotify: + process_destroy_window_event(compositor, &event.xdestroywindow); + break; case MapNotify: process_map_event(compositor, &event.xmap); break; case UnmapNotify: process_unmap_event(compositor, &event.xunmap); break; + case ReparentNotify: + process_reparent_event(compositor, &event.xreparent); + break; + case ConfigureNotify: + process_configure_event(compositor, &event.xconfigure); + break; default: - if(event.type!=compositor->damage_event+XDamageNotify) + if(event.type==compositor->damage_event+XDamageNotify) + process_damage_event(compositor, (XDamageNotifyEvent *)&event); + else printf("Event %d\n", event.type); } + + return 1; } void refresh_screens(Compositor *compositor) @@ -475,6 +727,9 @@ void refresh_screens(Compositor *compositor) for(i=0; inscreens; ++i) { CompositedScreen *screen = &compositor->screens[i]; + if(!screen->dirty) + continue; + use_gl(compositor, screen); glClearColor(0.5f, 0.5f, 0.5f, 0.0f); @@ -482,8 +737,6 @@ void refresh_screens(Compositor *compositor) glUseProgram(screen->program); glBindVertexArray(screen->vertex_array); - XGrabServer(compositor->display); - glXWaitX(); for(j=0; jnwindows; ++j) { CompositedWindow *window = &screen->windows[j]; @@ -491,28 +744,40 @@ void refresh_screens(Compositor *compositor) { glBindTexture(GL_TEXTURE_2D, window->texture); compositor->glXBindTexImageEXT(compositor->display, window->glx_pixmap, GLX_FRONT_LEFT_EXT, NULL); - glUniform4f(screen->geometry_loc, (float)window->x/screen->width, (float)(screen->height-window->y-window->height)/screen->height, (float)window->width/screen->width, (float)window->height/screen->height); + glUniform4f(screen->geometry_loc, (float)window->x/screen->width, (float)(screen->height-window->y-window->height)/screen->height, (float)(window->width+2*window->border)/screen->width, (float)(window->height+2*window->border)/screen->height); glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); compositor->glXReleaseTexImageEXT(compositor->display, window->glx_pixmap, GLX_FRONT_LEFT_EXT); XDamageSubtract(compositor->display, window->damage, None, None); } } - XUngrabServer(compositor->display); glXSwapBuffers(compositor->display, screen->glx_window); + + screen->dirty = 0; } + + compositor->dirty = 0; +} + +void sighandler(int sig) +{ + terminate_requested = 1; + (void)sig; } int main() { Compositor compositor; + signal(SIGINT, &sighandler); + signal(SIGTERM, &sighandler); + if(!initialize_compositor(&compositor)) return 1; - while(1) + while(!terminate_requested) { - process_event(&compositor); - refresh_screens(&compositor); + if(!process_event(&compositor)) + refresh_screens(&compositor); } shutdown_compositor(&compositor);