#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <signal.h>
+#include <math.h>
#include <X11/Xlib.h>
+#include <X11/Xatom.h>
#include <X11/extensions/Xcomposite.h>
#include <X11/extensions/Xdamage.h>
#include <X11/extensions/shape.h>
+#include <X11/extensions/Xrandr.h>
#include <GL/gl.h>
#include <GL/glx.h>
Damage damage;
Pixmap pixmap;
GLXPixmap glx_pixmap;
+ int recreate_pixmap;
unsigned texture;
+ unsigned mask_texture;
+ int use_mask;
+ int recreate_mask;
} CompositedWindow;
+enum
+{
+ CYLINDRICAL = 1,
+ SPHERICAL
+};
+
+typedef struct CompositedMonitor
+{
+ char *name;
+ int enabled;
+ int x;
+ int y;
+ unsigned width;
+ unsigned height;
+ float keystone_vertical;
+ float curvature_type;
+ float curvature_depth;
+ float vertical_center;
+ float perspective;
+ unsigned vertex_buffer;
+ unsigned index_buffer;
+ unsigned vertex_array;
+ unsigned tessellation;
+ unsigned nelements;
+ short *geometry_data;
+ unsigned geometry_data_size;
+} CompositedMonitor;
+
typedef struct CompositedScreen
{
int number;
GLXFBConfig fbconfig;
GLXWindow glx_window;
GLXContext glx_context;
- unsigned shaders[2];
+ unsigned shaders[3];
unsigned program;
- unsigned geometry_loc;
- unsigned vertex_buffer;
- unsigned vertex_array;
+ int geometry_loc;
+ unsigned masked_program;
+ int masked_geometry_loc;
+ unsigned window_vertex_buffer;
+ unsigned window_vertex_array;
+ unsigned framebuffer;
+ unsigned fb_texture;
+ Pixmap root_pixmap;
+ GLXPixmap root_glx_pixmap;
+ unsigned root_texture;
CompositedWindow *windows;
unsigned nwindows;
unsigned windows_capacity;
+ CompositedMonitor *monitors;
+ unsigned nmonitors;
int dirty;
} CompositedScreen;
CompositedScreen *screens;
unsigned nscreens;
int damage_event;
+ int shape_event;
+ int randr_event;
PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB;
PFNGLXBINDTEXIMAGEEXTPROC glXBindTexImageEXT;
PFNGLXRELEASETEXIMAGEEXTPROC glXReleaseTexImageEXT;
+ Atom root_pmap_atom;
+ Atom correction_atom;
+ Atom monitors_atom;
+ Atom geometry_data_atom;
+ Window selection_window;
int dirty;
} Compositor;
-static const char *vshader =
- "#version 150\n"
+static const char *vshader_src =
+ "#version 130\n"
"uniform vec4 geometry;\n"
"in vec2 vertex;\n"
+ "in vec2 texture_coord;\n"
"out vec2 texcoord;\n"
"void main()\n"
"{\n"
" gl_Position = vec4((geometry.xy+vertex*geometry.zw)*2.0-1.0, 0.0, 1.0);\n"
- " texcoord = vec2(vertex.x, 1.0-vertex.y);\n"
+ " texcoord = texture_coord;\n"
+ "}\n";
+
+static const char *fshader_src =
+ "#version 130\n"
+ "uniform sampler2D image;\n"
+ "in vec2 texcoord;\n"
+ "out vec4 frag_color;\n"
+ "void main()\n"
+ "{\n"
+ " frag_color = texture(image, texcoord);\n"
"}\n";
-static const char *fshader =
- "#version 150\n"
- "uniform sampler2D window;\n"
+static const char *masked_fshader_src =
+ "#version 130\n"
+ "uniform sampler2D image;\n"
+ "uniform sampler2D mask;\n"
"in vec2 texcoord;\n"
"out vec4 frag_color;\n"
"void main()\n"
"{\n"
- " frag_color = texture(window, texcoord);\n"
+ " if(texture(mask, texcoord).r==0.0)\n"
+ " discard;\n"
+ " frag_color = texture(image, texcoord);\n"
"}\n";
-static const float vertices[] =
+static const float window_vertices[] =
{
- 0.0f, 1.0f,
- 0.0f, 0.0f,
- 1.0f, 1.0f,
- 1.0f, 0.0f
+ /* vertex texcoord */
+ 0.0f, 1.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 0.0f,
+ 1.0f, 0.0f, 1.0f, 1.0f
};
+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);
attribs[i++] = GLX_CONTEXT_MAJOR_VERSION_ARB;
attribs[i++] = 3;
attribs[i++] = GLX_CONTEXT_MINOR_VERSION_ARB;
- attribs[i++] = 0;
+ attribs[i++] = 1;
attribs[i] = None;
screen->glx_context = compositor->glXCreateContextAttribsARB(compositor->display, screen->fbconfig, NULL, True, attribs);
return shader;
}
-int create_gl_resources(Compositor *compositor, CompositedScreen *screen)
+unsigned link_program(unsigned vshader, unsigned fshader)
{
+ unsigned program;
int status;
char info_log[1024];
GLsizei length;
- use_gl(compositor, screen);
-
- screen->shaders[0] = compile_shader(GL_VERTEX_SHADER, vshader);
- screen->shaders[1] = compile_shader(GL_FRAGMENT_SHADER, fshader);
- 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);
+ program = glCreateProgram();
+ glAttachShader(program, vshader);
+ glAttachShader(program, fshader);
+ glBindAttribLocation(program, 0, "vertex");
+ glBindAttribLocation(program, 1, "texture_coord");
+ glBindFragDataLocation(program, 0, "frag_color");
+ glLinkProgram(program);
- screen->geometry_loc = glGetUniformLocation(screen->program, "geometry");
-
- glGetProgramiv(screen->program, GL_LINK_STATUS, &status);
- glGetProgramInfoLog(screen->program, sizeof(info_log), &length, info_log);
+ glGetProgramiv(program, GL_LINK_STATUS, &status);
+ glGetProgramInfoLog(program, sizeof(info_log), &length, info_log);
if(!status)
{
fprintf(stderr, "Program link failed:\n%s\n", info_log);
- glDeleteProgram(screen->program);
+ glDeleteProgram(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);
+ return program;
+}
+
+unsigned create_2d_texture()
+{
+ unsigned 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_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ return texture;
+}
+
+int create_gl_resources(CompositedScreen *screen)
+{
+ unsigned stride;
+ int loc;
+
+ screen->shaders[0] = compile_shader(GL_VERTEX_SHADER, vshader_src);
+ screen->shaders[1] = compile_shader(GL_FRAGMENT_SHADER, fshader_src);
+ screen->shaders[2] = compile_shader(GL_FRAGMENT_SHADER, masked_fshader_src);
+ if(!screen->shaders[0] || !screen->shaders[1] || !screen->shaders[2])
+ return 0;
+
+ screen->program = link_program(screen->shaders[0], screen->shaders[1]);
+ if(!screen->program)
+ return 0;
+
+ screen->masked_program = link_program(screen->shaders[0], screen->shaders[2]);
+ if(!screen->masked_program)
+ return 0;
+
+ screen->geometry_loc = glGetUniformLocation(screen->program, "geometry");
+ screen->masked_geometry_loc = glGetUniformLocation(screen->masked_program, "geometry");
+
+ loc = glGetUniformLocation(screen->masked_program, "mask");
+ if(loc>=0)
+ {
+ glUseProgram(screen->masked_program);
+ glUniform1i(loc, 1);
+ }
+
+ glGenBuffers(1, &screen->window_vertex_buffer);
+ glBindBuffer(GL_ARRAY_BUFFER, screen->window_vertex_buffer);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(window_vertices), window_vertices, GL_STATIC_DRAW);
- glGenVertexArrays(1, &screen->vertex_array);
- glBindVertexArray(screen->vertex_array);
- glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, NULL);
+ stride = 4*sizeof(float);
+ glGenVertexArrays(1, &screen->window_vertex_array);
+ glBindVertexArray(screen->window_vertex_array);
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, stride, NULL);
glEnableVertexAttribArray(0);
+ glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, stride, (void *)(2*sizeof(float)));
+ glEnableVertexAttribArray(1);
+ glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
+ screen->fb_texture = create_2d_texture();
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, screen->width, screen->height, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
+ glBindTexture(GL_TEXTURE_2D, 0);
+
+ glGenFramebuffers(1, &screen->framebuffer);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, screen->framebuffer);
+ glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, screen->fb_texture, 0);
+ glDepthMask(GL_FALSE);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+
+ screen->root_texture = create_2d_texture();
+
return 1;
}
return NULL;
}
-void create_window_pixmap(Compositor *compositor, CompositedScreen *screen, CompositedWindow *window)
+CompositedWindow *find_window_global(Compositor *compositor, Window w, CompositedScreen **screen)
+{
+ unsigned i, j;
+
+ for(i=0; i<compositor->nscreens; ++i)
+ for(j=0; j<compositor->screens[i].nwindows; ++j)
+ if(compositor->screens[i].windows[j].window==w)
+ {
+ if(screen)
+ *screen = &compositor->screens[i];
+ return &compositor->screens[i].windows[j];
+ }
+
+ if(screen)
+ *screen = NULL;
+ return NULL;
+}
+
+GLXPixmap pixmap_to_glx_pixmap(Compositor *compositor, CompositedScreen *screen, Pixmap pixmap)
{
int attribs[5];
unsigned i;
- if(window->pixmap)
- {
- glXDestroyPixmap(compositor->display, window->glx_pixmap);
- XFreePixmap(compositor->display, window->pixmap);
- }
-
i = 0;
attribs[i++] = GLX_TEXTURE_TARGET_EXT;
attribs[i++] = GLX_TEXTURE_2D_EXT;
attribs[i++] = GLX_TEXTURE_FORMAT_RGBA_EXT;
attribs[i++] = None;
+ return glXCreatePixmap(compositor->display, screen->fbconfig, pixmap, attribs);
+}
+
+void create_window_pixmap(Compositor *compositor, CompositedScreen *screen, CompositedWindow *window)
+{
+ if(window->pixmap)
+ {
+ glXDestroyPixmap(compositor->display, window->glx_pixmap);
+ XFreePixmap(compositor->display, window->pixmap);
+ }
+
window->pixmap = XCompositeNameWindowPixmap(compositor->display, window->window);
- window->glx_pixmap = glXCreatePixmap(compositor->display, screen->fbconfig, window->pixmap, attribs);
+ window->glx_pixmap = pixmap_to_glx_pixmap(compositor, screen, window->pixmap);
+ window->recreate_pixmap = 0;
+}
+
+void update_window_mask(Compositor *compositor, CompositedWindow *window)
+{
+ Bool bounding_shaped;
+ Bool clip_shaped;
+ int xi, yi;
+ XRectangle *rects;
+ int rect_count;
+ int rect_order;
+ unsigned width;
+ unsigned height;
+ unsigned char *data;
+ int i;
+ unsigned y;
+
+ XShapeQueryExtents(compositor->display, window->window, &bounding_shaped, &xi, &yi, &width, &height, &clip_shaped, &xi, &yi, &width, &height);
+ window->use_mask = bounding_shaped;
+ if(!window->use_mask)
+ return;
+
+ rects = XShapeGetRectangles(compositor->display, window->window, ShapeBounding, &rect_count, &rect_order);
+ if(!rects)
+ return;
+
+ width = window->width+2*window->border;
+ height = window->height+2*window->border;
+ data = (unsigned char *)malloc(width*height);
+ memset(data, 0, width*height);
+ for(i=0; i<rect_count; ++i)
+ {
+ rects[i].x += window->border;
+ rects[i].y += window->border;
+ if(rects[i].x>=(int)width || rects[i].y>=(int)height)
+ continue;
+
+ if(rects[i].x<0)
+ {
+ if(-rects[i].x>rects[i].width)
+ continue;
+ rects[i].width += rects[i].x;
+ rects[i].x = 0;
+ }
+
+ if(rects[i].y<0)
+ {
+ if(-rects[i].y>rects[i].height)
+ continue;
+ rects[i].height += rects[i].y;
+ rects[i].y = 0;
+ }
+
+ if(rects[i].x+rects[i].width>(int)width)
+ rects[i].width = width-rects[i].x;
+ if(rects[i].y+rects[i].height>(int)height)
+ rects[i].height = height-rects[i].y;
+
+ for(y=0; y<rects[i].height; ++y)
+ {
+ unsigned char *row = data+(rects[i].y+y)*width+rects[i].x;
+ memset(row, 255, rects[i].width);
+ }
+ }
+
+ XFree(rects);
+
+ glBindTexture(GL_TEXTURE_2D, window->mask_texture);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_R8, width, height, 0, GL_RED, GL_UNSIGNED_BYTE, data);
+
+ free(data);
+
+ window->recreate_mask = 0;
}
-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;
if(!XGetWindowAttributes(compositor->display, w, &win_attr))
{
printf("XGetWindowAttributes failed; probably the window was already destroyed\n");
- return;
+ return NULL;
}
if(win_attr.class==InputOnly)
- return;
+ return NULL;
if(find_window(screen, w))
- return;
+ return NULL;
if(screen->nwindows==screen->windows_capacity)
{
window->glx_pixmap = None;
XCompositeRedirectWindow(compositor->display, window->window, CompositeRedirectManual);
- if(window->map_state==IsViewable)
- create_window_pixmap(compositor, screen, window);
+ window->recreate_pixmap = (window->map_state==IsViewable);
- glGenTextures(1, &window->texture);
- glBindTexture(GL_TEXTURE_2D, window->texture);
- 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);
+ window->texture = create_2d_texture();
+ window->mask_texture = create_2d_texture();
+ window->use_mask = 0;
+ window->recreate_mask = (window->map_state==IsViewable);
+
+ XShapeSelectInput(compositor->display, window->window, ShapeNotifyMask);
+
+ 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; i<screen->nwindows; ++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; j<screen->nwindows; ++j)
+ if(screen->windows[j].window==above)
+ break;
+
+ if(j>=screen->nwindows || i==j+1)
+ return window;
+
+ if(j<i)
+ ++j;
+ }
+ else
+ j = 0;
+
+ hold = *window;
+ if(i<j)
+ {
+ for(; i<j; ++i)
+ screen->windows[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)
return NULL;
}
-CompositedScreen *find_screen_by_window(Compositor *compositor, Window w)
+void create_geometry_correction(CompositedMonitor *monitor)
+{
+ unsigned buffers[2];
+ unsigned stride;
+
+ glGenBuffers(2, buffers);
+ monitor->vertex_buffer = buffers[0];
+ monitor->index_buffer = buffers[1];
+
+ monitor->tessellation = 50;
+ monitor->geometry_data_size = (monitor->tessellation+1)*(monitor->tessellation+1)*3+16;
+ monitor->geometry_data = (short *)malloc(monitor->geometry_data_size*sizeof(short));
+ stride = 4*sizeof(float);
+
+ glGenVertexArrays(1, &monitor->vertex_array);
+ glBindVertexArray(monitor->vertex_array);
+ glBindBuffer(GL_ARRAY_BUFFER, monitor->vertex_buffer);
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, stride, NULL);
+ glEnableVertexAttribArray(0);
+ glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, stride, (void *)(2*sizeof(float)));
+ glEnableVertexAttribArray(1);
+ glBindBuffer(GL_ARRAY_BUFFER, 0);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, monitor->index_buffer);
+ glBindVertexArray(0);
+}
+
+void free_geometry_correction(CompositedMonitor *monitor)
+{
+ unsigned buffers[2];
+
+ buffers[0] = monitor->vertex_buffer;
+ buffers[1] = monitor->index_buffer;
+ glDeleteBuffers(2, buffers);
+ monitor->vertex_buffer = 0;
+ monitor->index_buffer = 0;
+
+ glDeleteVertexArrays(1, &monitor->vertex_array);
+
+ free(monitor->geometry_data);
+ monitor->geometry_data = 0;
+}
+
+void update_monitor_vertices(CompositedScreen *screen, CompositedMonitor *monitor)
+{
+ unsigned t;
+ unsigned data_size;
+ float *vertex_data;
+ unsigned short *index_data;
+ unsigned x, y;
+ unsigned i;
+ float aspect;
+ float curve_radius;
+ float curve_arc;
+ float sin_ksv;
+ float cos_ksv;
+ float distance;
+ float eye[3];
+ float look[3];
+
+ t = monitor->tessellation;
+
+ data_size = (t+1)*(t+1)*4*sizeof(float);
+ vertex_data = (float *)malloc(data_size);
+
+ aspect = (float)monitor->width/monitor->height;
+
+ if(monitor->curvature_depth)
+ {
+ curve_radius = (monitor->curvature_depth*monitor->curvature_depth+0.25f)/(2.0f*monitor->curvature_depth);
+ curve_arc = 2.0f*asin(0.5f/curve_radius);
+ }
+
+ sin_ksv = monitor->keystone_vertical/sqrt(1.0f+monitor->keystone_vertical*monitor->keystone_vertical);
+ cos_ksv = sqrt(1.0f-sin_ksv*sin_ksv);
+ distance = monitor->perspective+sin_ksv*((sin_ksv>0)-monitor->vertical_center)/aspect;
+ if(monitor->curvature_depth<0)
+ distance += -monitor->curvature_depth;
+
+ eye[0] = 0.0f;
+ eye[1] = (monitor->vertical_center-0.5f)/aspect+sin_ksv*distance;
+ eye[2] = cos_ksv*distance;
+
+ look[0] = 0.0f;
+ look[1] = -sin_ksv;
+ look[2] = -cos_ksv;
+
+ for(y=0; y<=t; ++y)
+ for(x=0; x<=t; ++x)
+ {
+ float *v;
+
+ v = vertex_data+(y*(t+1)+x)*3;
+ v[0] = (float)x/t-0.5f;
+ v[1] = ((float)y/t-0.5f)/aspect;
+ v[2] = 0;
+ if(monitor->curvature_depth)
+ {
+ if(monitor->curvature_type==CYLINDRICAL)
+ {
+ v[2] = (1.0f-cos(v[0]*curve_arc))*curve_radius-monitor->curvature_depth;
+ v[0] = sin(v[0]*curve_arc)*curve_radius;
+ }
+ else if(monitor->curvature_type==SPHERICAL)
+ {
+ float r;
+
+ v[0] = tan(v[0]*curve_arc)*curve_radius;
+ v[1] = tan(v[1]*curve_arc)*curve_radius;
+ r = sqrt(v[0]*v[0]+v[1]*v[1]+curve_radius*curve_radius)/fabs(curve_radius);
+ v[0] /= r;
+ v[1] /= r;
+ v[2] = curve_radius-curve_radius/r-monitor->curvature_depth;
+ }
+ }
+ }
+
+ monitor->geometry_data[0] = t;
+ for(i=0; i<3; ++i)
+ monitor->geometry_data[1+i] = eye[i]*4096;
+ for(y=0; y<2; ++y)
+ for(x=0; x<2; ++x)
+ {
+ i = 1+(1+y*2+x)*3;
+ monitor->geometry_data[i] = ((x-0.5f)*distance/monitor->perspective)*4096;
+ monitor->geometry_data[i+1] = (eye[1]+look[1]*distance-(y-monitor->vertical_center)*look[2]*distance/monitor->perspective/aspect)*4096;
+ monitor->geometry_data[i+2] = (eye[2]+look[2]*distance+(y-monitor->vertical_center)*look[1]*distance/monitor->perspective/aspect)*4096;
+ }
+ for(i=0; i<(t+1)*(t+1)*3; ++i)
+ monitor->geometry_data[16+i] = vertex_data[i]*4096;
+
+ for(y=t; y<=t; --y)
+ for(x=t; x<=t; --x)
+ {
+ float *v;
+ float px, py, pz;
+ float scale;
+
+ v = vertex_data+(y*(t+1)+x)*3;
+ px = v[0]-eye[0];
+ py = (v[0]-eye[0])*look[0] - (v[1]-eye[1])*look[2] + (v[2]-eye[2])*look[1];
+ pz = (v[0]-eye[0])*look[0] + (v[1]-eye[1])*look[1] + (v[2]-eye[2])*look[2];
+ scale = monitor->perspective/pz;
+
+ v = vertex_data+(y*(t+1)+x)*4;
+ v[0] = px*scale+0.5f;
+ v[1] = py*aspect*scale+monitor->vertical_center;
+ v[2] = (monitor->x+(float)x*monitor->width/t)/screen->width;
+ v[3] = 1.0f-(monitor->y+(1.0f-(float)y/t)*monitor->height)/screen->height;
+ }
+
+ glBindBuffer(GL_ARRAY_BUFFER, monitor->vertex_buffer);
+ glBufferData(GL_ARRAY_BUFFER, data_size, vertex_data, GL_STATIC_DRAW);
+ glBindBuffer(GL_ARRAY_BUFFER, 0);
+ free(vertex_data);
+
+ monitor->nelements = t*((t+1)*2+1)-1;
+ data_size = monitor->nelements*sizeof(unsigned short);
+ index_data = (unsigned short *)malloc(data_size);
+ i = 0;
+ for(y=0; y<t; ++y)
+ {
+ if(y>0)
+ index_data[i++] = 0xFFFF;
+ for(x=0; x<=t; ++x)
+ {
+ index_data[i++] = (y+1)*(t+1)+x;
+ index_data[i++] = y*(t+1)+x;
+ }
+ }
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, monitor->index_buffer);
+ glBufferData(GL_ELEMENT_ARRAY_BUFFER, data_size, index_data, GL_STATIC_DRAW);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+ free(index_data);
+}
+
+int initialize_monitor(Compositor *compositor, CompositedScreen *screen, XRRScreenResources *xrr_res, unsigned index)
+{
+ CompositedMonitor *monitor;
+ XRROutputInfo *output;
+ int namelen;
+ XRRCrtcInfo *crtc;
+
+ monitor = &screen->monitors[index];
+
+ output = XRRGetOutputInfo(compositor->display, xrr_res, xrr_res->outputs[index]);
+ namelen = strlen(output->name);
+ monitor->name = (char *)malloc(namelen+1);
+ strcpy(monitor->name, output->name);
+ monitor->enabled = !!output->crtc;
+ if(!monitor->enabled)
+ {
+ XRRFreeOutputInfo(output);
+ monitor->vertex_buffer = 0;
+ monitor->index_buffer = 0;
+ monitor->vertex_array = 0;
+ monitor->geometry_data = NULL;
+ return 1;
+ }
+
+ crtc = XRRGetCrtcInfo(compositor->display, xrr_res, output->crtc);
+ monitor->x = crtc->x;
+ monitor->y = crtc->y;
+ monitor->width = crtc->width;
+ monitor->height = crtc->height;
+ XRRFreeCrtcInfo(crtc);
+ XRRFreeOutputInfo(output);
+
+ monitor->keystone_vertical = 0.0f;
+ monitor->curvature_type = CYLINDRICAL;
+ monitor->curvature_depth = 0.0f;
+ monitor->vertical_center = 0.5f;
+ monitor->perspective = 1.0f;
+
+ create_geometry_correction(monitor);
+ update_monitor_vertices(screen, monitor);
+
+ return 1;
+}
+
+CompositedMonitor *find_monitor_by_name(CompositedScreen *screen, char *name)
+{
+ unsigned i;
+
+ for(i=0; i<screen->nmonitors; ++i)
+ if(!strcmp(screen->monitors[i].name, name))
+ return &screen->monitors[i];
+
+ return NULL;
+}
+
+CompositedMonitor *find_monitor_by_name_global(Compositor *compositor, char *name, CompositedScreen **screen)
{
unsigned i, j;
for(i=0; i<compositor->nscreens; ++i)
- for(j=0; j<compositor->screens[i].nwindows; ++j)
- if(compositor->screens[i].windows[j].window==w)
- return &compositor->screens[i];
+ for(j=0; j<compositor->screens[i].nmonitors; ++j)
+ if(!strcmp(compositor->screens[i].monitors[j].name, name))
+ {
+ if(screen)
+ *screen = &compositor->screens[i];
+ return &compositor->screens[i].monitors[j];
+ }
+ if(screen)
+ *screen = NULL;
return NULL;
}
+void update_monitors(Compositor *compositor, CompositedScreen *screen)
+{
+ XRRScreenResources *xrr_res;
+ int i;
+
+ xrr_res = XRRGetScreenResources(compositor->display, screen->root);
+ for(i=0; i<xrr_res->noutput; ++i)
+ {
+ XRROutputInfo *output;
+ CompositedMonitor *monitor;
+ int was_enabled;
+ XRRCrtcInfo *crtc;
+
+ output = XRRGetOutputInfo(compositor->display, xrr_res, xrr_res->outputs[i]);
+ monitor = find_monitor_by_name(screen, output->name);
+ if(!monitor)
+ continue;
+
+ was_enabled = monitor->enabled;
+ monitor->enabled = !!output->crtc;
+ if(!monitor->enabled)
+ {
+ XRRFreeOutputInfo(output);
+ if(was_enabled)
+ free_geometry_correction(monitor);
+ continue;
+ }
+
+ crtc = XRRGetCrtcInfo(compositor->display, xrr_res, output->crtc);
+ monitor->x = crtc->x;
+ monitor->y = crtc->y;
+ monitor->width = crtc->width;
+ monitor->height = crtc->height;
+ XRRFreeCrtcInfo(crtc);
+ XRRFreeOutputInfo(output);
+
+ if(!was_enabled)
+ create_geometry_correction(monitor);
+
+ update_monitor_vertices(screen, monitor);
+ }
+ XRRFreeScreenResources(xrr_res);
+}
+
+void update_geometry_correction(Compositor *compositor, CompositedScreen *screen)
+{
+ Atom prop_type;
+ int prop_format;
+ unsigned long overflow;
+ unsigned long names_length;
+ char *names;
+ unsigned long values_length;
+ short *values;
+ char *name_ptr;
+ unsigned i;
+
+ XGetWindowProperty(compositor->display, screen->root, compositor->monitors_atom, 0, 64, False, XA_STRING,
+ &prop_type, &prop_format, &names_length, &overflow, (unsigned char **)&names);
+ if(prop_type!=XA_STRING || prop_format!=8)
+ return;
+
+ XGetWindowProperty(compositor->display, screen->root, compositor->correction_atom, 0, 64, False, XA_INTEGER,
+ &prop_type, &prop_format, &values_length, &overflow, (unsigned char **)&values);
+ if(prop_type!=XA_INTEGER || prop_format!=16)
+ {
+ XFree(names);
+ return;
+ }
+
+ use_gl(compositor, screen);
+
+ name_ptr = names;
+ for(i=0; i*5+4<values_length; ++i)
+ {
+ CompositedMonitor *monitor;
+
+ if(name_ptr>=names+names_length)
+ break;
+
+ monitor = find_monitor_by_name(screen, name_ptr);
+ if(monitor)
+ {
+ monitor->keystone_vertical = values[i*5]/4096.0f;
+ monitor->curvature_type = values[i*5+1];
+ monitor->curvature_depth = values[i*5+2]/4096.0f;
+ monitor->vertical_center = values[i*5+3]/4096.0f;
+ monitor->perspective = values[i*5+4]/4096.0f;
+
+ if(monitor->enabled)
+ update_monitor_vertices(screen, monitor);
+ }
+
+ name_ptr += strlen(name_ptr)+1;
+ }
+
+ XFree(names);
+ XFree(values);
+}
+
+void update_root_pixmap(Compositor *compositor, CompositedScreen *screen)
+{
+ Atom prop_type;
+ int prop_format;
+ unsigned long overflow;
+ unsigned long length;
+ long *pixmap;
+ Window root;
+ int x, y;
+ unsigned width;
+ unsigned height;
+ unsigned border;
+ unsigned depth;
+
+ use_gl(compositor, screen);
+
+ if(screen->root_glx_pixmap)
+ {
+ glXDestroyPixmap(compositor->display, screen->root_glx_pixmap);
+ screen->root_glx_pixmap = None;
+ }
+
+ XGetWindowProperty(compositor->display, screen->root, compositor->root_pmap_atom, 0, 1, False, XA_PIXMAP,
+ &prop_type, &prop_format, &length, &overflow, (unsigned char **)&pixmap);
+ if(prop_type!=XA_PIXMAP || prop_format!=32)
+ {
+ screen->root_pixmap = None;
+ return;
+ }
+
+ screen->root_pixmap = pixmap[0];
+ if(XGetGeometry(compositor->display, screen->root_pixmap, &root, &x, &y, &width, &height, &border, &depth))
+ screen->root_glx_pixmap = pixmap_to_glx_pixmap(compositor, screen, screen->root_pixmap);
+ else
+ screen->root_pixmap = None;
+
+ XFree(pixmap);
+}
+
int initialize_screen(Compositor *compositor, unsigned number)
{
CompositedScreen *screen;
int x, y;
unsigned border;
unsigned depth;
+ XRRScreenResources *xrr_res;
Window dummy_parent;
Window *children;
unsigned nchildren;
return with_error("GLX_EXT_texture_from_pixmap is required");
screen->root = RootWindow(compositor->display, screen->number);
- XSelectInput(compositor->display, screen->root, SubstructureNotifyMask);
+ XSelectInput(compositor->display, screen->root, SubstructureNotifyMask|PropertyChangeMask);
screen->overlay = XCompositeGetOverlayWindow(compositor->display, screen->root);
+ XSelectInput(compositor->display, screen->overlay, StructureNotifyMask);
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;
- if(!create_gl_resources(compositor, screen))
+ use_gl(compositor, screen);
+
+ if(!create_gl_resources(screen))
return 0;
+ xrr_res = XRRGetScreenResources(compositor->display, screen->root);
+ screen->nmonitors = xrr_res->noutput;
+ screen->monitors = (CompositedMonitor *)malloc(screen->nmonitors*sizeof(CompositedMonitor));
+ for(i=0; i<screen->nmonitors; ++i)
+ if(!initialize_monitor(compositor, screen, xrr_res, i))
+ return 0;
+ XRRFreeScreenResources(xrr_res);
+ XRRSelectInput(compositor->display, screen->root, RRScreenChangeNotifyMask);
+
+ screen->root_pixmap = None;
+ screen->root_glx_pixmap = None;
+
+ update_geometry_correction(compositor, screen);
+ update_root_pixmap(compositor, screen);
+
XQueryTree(compositor->display, screen->root, &dummy_root, &dummy_parent, &children, &nchildren);
screen->windows = (CompositedWindow *)malloc(nchildren*sizeof(CompositedWindow));
XFree(children);
+ screen->dirty = 1;
+
return 1;
}
else if(major_ver<1)
return with_error("XDamage 1.0 or later is required");
- if(!XShapeQueryExtension(compositor->display, &event_base, &error_base))
+ if(!XShapeQueryExtension(compositor->display, &compositor->shape_event, &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");
+ if(!XRRQueryExtension(compositor->display, &compositor->randr_event, &error_base))
+ return with_error("XRandR is required but was not found");
+ else if(!XRRQueryVersion(compositor->display, &major_ver, &minor_ver))
+ return with_error("Cannot determine XRandR version");
+ else if(major_ver<1 || (major_ver==1 && minor_ver<2))
+ return with_error("XRandR 1.2 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");
+ compositor->root_pmap_atom = XInternAtom(compositor->display, "_XROOTPMAP_ID", False);
+ compositor->correction_atom = XInternAtom(compositor->display, "_MSP_GEOMETRY_CORRECTION", False);
+ compositor->monitors_atom = XInternAtom(compositor->display, "_MSP_GEOMETRY_CORRECTION_MONITORS", False);
+ compositor->geometry_data_atom = XInternAtom(compositor->display, "_MSP_GEOMETRY_CORRECTION_DATA", False);
+
compositor->nscreens = ScreenCount(compositor->display);
compositor->screens = (CompositedScreen *)malloc(compositor->nscreens*sizeof(CompositedScreen));
for(i=0; i<compositor->nscreens; ++i)
if(!initialize_screen(compositor, i))
return 0;
+ compositor->selection_window = XCreateWindow(compositor->display, compositor->screens[0].root, 0, 0, 1, 1, 0, CopyFromParent, InputOutput, CopyFromParent, 0, NULL);
+ XSetSelectionOwner(compositor->display, compositor->geometry_data_atom, compositor->selection_window, CurrentTime);
+
+ compositor->dirty = 1;
+
return 1;
}
void shutdown_screen(Compositor *compositor, CompositedScreen *screen)
{
+ unsigned i;
+
+ use_gl(compositor, screen);
+
+ for(i=0; i<screen->nwindows; ++i)
+ {
+ glDeleteTextures(1, &screen->windows[i].texture);
+ glDeleteTextures(1, &screen->windows[i].mask_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);
+ }
+ }
+
+ for(i=0; i<screen->nmonitors; ++i)
+ {
+ free(screen->monitors[i].name);
+ if(screen->monitors[i].enabled)
+ free_geometry_correction(&screen->monitors[i]);
+ }
+
+ glDeleteTextures(1, &screen->root_texture);
+ glXDestroyPixmap(compositor->display, screen->root_glx_pixmap);
+
+ glDeleteBuffers(1, &screen->window_vertex_buffer);
+ glDeleteVertexArrays(1, &screen->window_vertex_array);
+ glDeleteFramebuffers(1, &screen->framebuffer);
+ glDeleteTextures(1, &screen->fb_texture);
+ glDeleteProgram(screen->program);
+ glDeleteProgram(screen->masked_program);
+ for(i=0; i<3; ++i)
+ glDeleteShader(screen->shaders[i]);
+
+ glXMakeContextCurrent(compositor->display, None, None, 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);
+ free(screen->monitors);
}
void shutdown_compositor(Compositor *compositor)
{
unsigned i;
- glXMakeContextCurrent(compositor->display, 0, 0, NULL);
for(i=0; i<compositor->nscreens; ++i)
shutdown_screen(compositor, &compositor->screens[i]);
+ free(compositor->screens);
+
+ XDestroyWindow(compositor->display, compositor->selection_window);
+
+ 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)
{
- CompositedScreen *screen = find_screen_by_root(compositor, event->parent);
+ CompositedScreen *screen;
+
+ if((screen = find_screen_by_root(compositor, event->parent)))
+ add_window(compositor, screen, event->window);
+}
+
+void process_destroy_window_event(Compositor *compositor, XDestroyWindowEvent *event)
+{
+ CompositedScreen *screen;
+ CompositedWindow *window;
+
+ if((screen = find_screen_by_root(compositor, event->event)))
+ if((window = find_window(screen, event->window)))
+ {
+ use_gl(compositor, screen);
+ remove_window(compositor, screen, window, 1);
+ }
+}
+
+void process_map_event(Compositor *compositor, XMapEvent *event)
+{
+ CompositedScreen *screen;
+ CompositedWindow *window;
+
+ screen = find_screen_by_root(compositor, event->event);
if(!screen)
return;
- add_window(compositor, screen, event->window);
+ window = find_window(screen, event->window);
+ if(!window)
+ return;
+
+ window->map_state = IsViewable;
+ window->recreate_pixmap = 1;
+ window->recreate_mask = 1;
+
+ mark_dirty(compositor, screen);
}
-void process_map_event(Compositor *compositor, XMapEvent *event)
+void process_unmap_event(Compositor *compositor, XUnmapEvent *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;
- 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;
- create_window_pixmap(compositor, screen, window);
+ 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_unmap_event(Compositor *compositor, XUnmapEvent *event)
+void process_configure_event(Compositor *compositor, XConfigureEvent *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;
- CompositedWindow *window = find_window(screen, event->window);
- if(window)
- window->map_state = IsUnviewable;
+ if(event->window==screen->overlay)
+ {
+ screen->width = event->width;
+ screen->height = event->height;
+
+ XResizeWindow(compositor->display, screen->render_window, screen->width, screen->height);
+ use_gl(compositor, screen);
+ glBindTexture(GL_TEXTURE_2D, screen->fb_texture);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, screen->width, screen->height, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ 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;
+ window->recreate_pixmap = 1;
+ }
+ reorder_window(screen, window, event->above);
+
+ if(window->map_state==IsViewable)
+ mark_dirty(compositor, screen);
}
-void process_damage_event(Compositor *compositor, XDamageNotifyEvent *event)
+void process_property_event(Compositor *compositor, XPropertyEvent *event)
{
- CompositedScreen *screen = find_screen_by_window(compositor, event->drawable);
+ CompositedScreen *screen;
+
+ screen = find_screen_by_root(compositor, event->window);
if(!screen)
return;
- screen->dirty = 1;
- compositor->dirty = 1;
+ if(event->atom==compositor->correction_atom)
+ update_geometry_correction(compositor, screen);
+ else if(event->atom==compositor->root_pmap_atom)
+ update_root_pixmap(compositor, screen);
}
-int process_event(Compositor *compositor)
+void process_selection_request_event(Compositor *compositor, XSelectionRequestEvent *event)
{
- XEvent event;
- if(compositor->dirty)
+ Atom prop_type;
+ int prop_format;
+ unsigned long overflow;
+ unsigned long names_length;
+ XSelectionEvent notify;
+
+ if(event->selection==compositor->geometry_data_atom)
{
- if(!XCheckMaskEvent(compositor->display, -1, &event))
- return 0;
+ char *monitor_name;
+ CompositedMonitor *monitor;
+
+ XGetWindowProperty(compositor->display, event->requestor, event->property, 0, 64, False, XA_STRING,
+ &prop_type, &prop_format, &names_length, &overflow, (unsigned char **)&monitor_name);
+ if(prop_type!=XA_STRING || prop_format!=8)
+ return;
+
+ monitor = find_monitor_by_name_global(compositor, monitor_name, NULL);
+ if(monitor && monitor->enabled)
+ XChangeProperty(compositor->display, event->requestor, event->property, XA_INTEGER, 16, PropModeReplace, (unsigned char *)monitor->geometry_data, monitor->geometry_data_size);
+
+ notify.type = SelectionNotify;
+ notify.requestor = event->requestor;
+ notify.selection = event->selection;
+ notify.target = event->target;
+ notify.property = (monitor ? event->property : None);
+ notify.time = event->time;
+ XSendEvent(compositor->display, event->requestor, False, 0, (XEvent *)¬ify);
}
- else
- XNextEvent(compositor->display, &event);
+}
+
+void process_damage_event(Compositor *compositor, XDamageNotifyEvent *event)
+{
+ CompositedScreen *screen;
+ CompositedWindow *window;
+
+ window = find_window_global(compositor, event->drawable, &screen);
+ if(window && window->map_state==IsViewable)
+ mark_dirty(compositor, screen);
+}
+
+void process_shape_event(Compositor *compositor, XShapeEvent *event)
+{
+ CompositedScreen *screen;
+ CompositedWindow *window;
- switch(event.type)
+ if(event->kind!=ShapeBounding)
+ return;
+
+ window = find_window_global(compositor, event->window, &screen);
+ if(window && window->map_state==IsViewable)
{
- case CreateNotify:
- process_create_window_event(compositor, &event.xcreatewindow);
- break;
- case MapNotify:
- process_map_event(compositor, &event.xmap);
- break;
- case UnmapNotify:
- process_unmap_event(compositor, &event.xunmap);
- break;
- default:
- if(event.type==compositor->damage_event+XDamageNotify)
- process_damage_event(compositor, (XDamageNotifyEvent *)&event);
- else
- printf("Event %d\n", event.type);
+ window->recreate_mask = 1;
+ mark_dirty(compositor, screen);
}
+}
- return 1;
+void process_randr_event(Compositor *compositor, XRRScreenChangeNotifyEvent *event)
+{
+ CompositedScreen *screen;
+
+ if((screen = find_screen_by_root(compositor, event->root)))
+ update_monitors(compositor, screen);
}
-void refresh_screens(Compositor *compositor)
+void process_events(Compositor *compositor)
{
- unsigned i, j;
+ int pending;
+ XEvent event;
- for(i=0; i<compositor->nscreens; ++i)
+ pending = 0;
+ while((pending || !compositor->dirty) && !terminate_requested)
{
- CompositedScreen *screen = &compositor->screens[i];
- use_gl(compositor, screen);
+ if(!pending)
+ pending = XPending(compositor->display);
- glClearColor(0.5f, 0.5f, 0.5f, 0.0f);
- glClear(GL_COLOR_BUFFER_BIT);
+ XNextEvent(compositor->display, &event);
+ if(pending)
+ --pending;
+
+ 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;
+ case PropertyNotify:
+ process_property_event(compositor, &event.xproperty);
+ break;
+ case SelectionRequest:
+ process_selection_request_event(compositor, &event.xselectionrequest);
+ break;
+ default:
+ if(event.type==compositor->damage_event+XDamageNotify)
+ process_damage_event(compositor, (XDamageNotifyEvent *)&event);
+ else if(event.type==compositor->shape_event+ShapeNotify)
+ process_shape_event(compositor, (XShapeEvent *)&event);
+ else if(event.type==compositor->randr_event+RRScreenChangeNotify)
+ process_randr_event(compositor, (XRRScreenChangeNotifyEvent *)&event);
+ }
+ }
+}
+
+void refresh_screen(Compositor *compositor, CompositedScreen *screen)
+{
+ unsigned i;
+ int use_mask;
+
+ for(i=0; i<screen->nwindows; ++i)
+ if(screen->windows[i].map_state==IsViewable)
+ XDamageSubtract(compositor->display, screen->windows[i].damage, None, None);
+ glXWaitX();
+
+ use_gl(compositor, screen);
+
+ glViewport(0, 0, screen->width, screen->height);
+ glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, screen->framebuffer);
+ use_mask = -1;
+ glBindVertexArray(screen->window_vertex_array);
+
+ if(screen->root_pixmap)
+ {
+ use_mask = 0;
glUseProgram(screen->program);
- glBindVertexArray(screen->vertex_array);
- for(j=0; j<screen->nwindows; ++j)
+ glBindTexture(GL_TEXTURE_2D, screen->root_texture);
+ compositor->glXBindTexImageEXT(compositor->display, screen->root_glx_pixmap, GLX_FRONT_LEFT_EXT, NULL);
+ glUniform4f(screen->geometry_loc, 0.0f, 0.0f, 1.0f, 1.0f);
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+ compositor->glXReleaseTexImageEXT(compositor->display, screen->root_glx_pixmap, GLX_FRONT_LEFT_EXT);
+ }
+ else
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ for(i=0; i<screen->nwindows; ++i)
+ {
+ CompositedWindow *window;
+
+ window = &screen->windows[i];
+ if(window->map_state!=IsViewable)
+ continue;
+
+ if(window->use_mask!=use_mask)
{
- CompositedWindow *window = &screen->windows[j];
- if(window->map_state==IsViewable)
- {
- 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+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);
- }
+ use_mask = window->use_mask;
+ glUseProgram(use_mask ? screen->masked_program : screen->program);
+ }
+
+ if(window->use_mask)
+ {
+ glActiveTexture(GL_TEXTURE1);
+ glBindTexture(GL_TEXTURE_2D, window->mask_texture);
+ glActiveTexture(GL_TEXTURE0);
}
- glXSwapBuffers(compositor->display, screen->glx_window);
- screen->dirty = 0;
+ if(window->recreate_pixmap)
+ create_window_pixmap(compositor, screen, window);
+ if(window->recreate_mask)
+ update_window_mask(compositor, window);
+
+ glBindTexture(GL_TEXTURE_2D, window->texture);
+ compositor->glXBindTexImageEXT(compositor->display, window->glx_pixmap, GLX_FRONT_LEFT_EXT, NULL);
+ glUniform4f((use_mask ? screen->masked_geometry_loc : screen->geometry_loc),
+ (float)window->x/screen->width, 1.0f-(float)(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);
+ }
+
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glBindTexture(GL_TEXTURE_2D, screen->fb_texture);
+ glEnable(GL_PRIMITIVE_RESTART);
+ glPrimitiveRestartIndex(0xFFFF);
+ if(use_mask)
+ glUseProgram(screen->program);
+
+ for(i=0; i<screen->nmonitors; ++i)
+ {
+ CompositedMonitor *monitor = &screen->monitors[i];
+ if(!monitor->enabled)
+ continue;
+
+ glUniform4f(screen->geometry_loc,
+ (float)monitor->x/screen->width, 1.0f-(float)(monitor->y+monitor->height)/screen->height,
+ (float)monitor->width/screen->width, (float)monitor->height/screen->height);
+
+ glBindVertexArray(monitor->vertex_array);
+ glDrawElements(GL_TRIANGLE_STRIP, monitor->nelements, GL_UNSIGNED_SHORT, NULL);
+ }
+
+ glBindVertexArray(0);
+
+ glXSwapBuffers(compositor->display, screen->glx_window);
+
+ screen->dirty = 0;
+}
+
+void refresh_all_screens(Compositor *compositor)
+{
+ unsigned i;
+
+ for(i=0; i<compositor->nscreens; ++i)
+ {
+ CompositedScreen *screen = &compositor->screens[i];
+ if(screen->dirty)
+ refresh_screen(compositor, screen);
}
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)
{
- if(!process_event(&compositor))
- refresh_screens(&compositor);
+ process_events(&compositor);
+ if(compositor.dirty && !terminate_requested)
+ refresh_all_screens(&compositor);
}
shutdown_compositor(&compositor);
projects / geometrycompositor.git / blobdiff