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@ -13,6 +13,7 @@ |
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#include <gdk-pixbuf/gdk-pixbuf.h> |
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#include <glib.h> |
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#include <png.h> |
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#include <math.h> |
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#include "wayland.h" |
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#include "cairo-util.h" |
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@ -33,6 +34,7 @@ struct egl_compositor { |
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int width, height; |
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struct egl_surface *pointer; |
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struct egl_surface *background; |
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struct egl_surface *overlay; |
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}; |
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struct egl_surface { |
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@ -177,6 +179,48 @@ screenshot(struct egl_compositor *ec) |
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free(data); |
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} |
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static struct egl_surface * |
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egl_surface_create_from_cairo_surface(cairo_surface_t *surface, |
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int x, int y, int width, int height) |
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{ |
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struct egl_surface *es; |
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int stride; |
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void *data; |
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stride = cairo_image_surface_get_stride(surface); |
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data = cairo_image_surface_get_data(surface); |
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es = malloc(sizeof *es); |
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if (es == NULL) |
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return NULL; |
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glGenTextures(1, &es->texture); |
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glBindTexture(GL_TEXTURE_2D, es->texture); |
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); |
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT); |
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, |
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GL_BGRA, GL_UNSIGNED_BYTE, data); |
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es->map.x = x; |
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es->map.y = y; |
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es->map.width = width; |
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es->map.height = height; |
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es->surface = EGL_NO_SURFACE; |
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return es; |
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} |
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static void |
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egl_surface_destroy(struct egl_surface *es, struct egl_compositor *ec) |
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{ |
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glDeleteTextures(1, &es->texture); |
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if (es->surface != EGL_NO_SURFACE) |
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eglDestroySurface(ec->display, es->surface); |
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free(es); |
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} |
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static void |
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pointer_path(cairo_t *cr, int x, int y) |
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{ |
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@ -196,16 +240,10 @@ pointer_path(cairo_t *cr, int x, int y) |
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static struct egl_surface * |
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pointer_create(int x, int y, int width, int height) |
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{ |
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struct egl_surface *es; |
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const int hotspot_x = 16, hotspot_y = 16; |
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struct egl_surface *pointer; |
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cairo_surface_t *surface; |
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cairo_t *cr; |
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int stride; |
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void *data; |
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pointer = malloc(sizeof *pointer); |
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if (pointer == NULL) |
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return NULL; |
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surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
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width, height); |
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@ -224,36 +262,11 @@ pointer_create(int x, int y, int width, int height) |
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cairo_fill(cr); |
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cairo_destroy(cr); |
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stride = cairo_image_surface_get_stride(surface); |
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data = cairo_image_surface_get_data(surface); |
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glGenTextures(1, &pointer->texture); |
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glBindTexture(GL_TEXTURE_2D, pointer->texture); |
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); |
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT); |
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, |
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GL_BGRA, GL_UNSIGNED_BYTE, data); |
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es = egl_surface_create_from_cairo_surface(surface, x, y, width, height); |
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cairo_surface_destroy(surface); |
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pointer->map.x = x; |
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pointer->map.y = y; |
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pointer->map.width = width; |
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pointer->map.height = height; |
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pointer->surface = EGL_NO_SURFACE; |
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return pointer; |
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} |
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static void |
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egl_surface_destroy(struct egl_surface *es, struct egl_compositor *ec) |
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{ |
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glDeleteTextures(1, &es->texture); |
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if (es->surface != EGL_NO_SURFACE) |
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eglDestroySurface(ec->display, es->surface); |
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free(es); |
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return es; |
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} |
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static struct egl_surface * |
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@ -299,6 +312,101 @@ background_create(const char *filename, int width, int height) |
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return background; |
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} |
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static void |
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rounded_rect(cairo_t *cr, int x0, int y0, int x1, int y1, int radius) |
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{ |
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cairo_move_to(cr, x0, y0 + radius); |
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cairo_arc(cr, x0 + radius, y0 + radius, radius, M_PI, 3 * M_PI / 2); |
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cairo_line_to(cr, x1 - radius, y0); |
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cairo_arc(cr, x1 - radius, y0 + radius, radius, 3 * M_PI / 2, 2 * M_PI); |
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cairo_line_to(cr, x1, y1 - radius); |
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cairo_arc(cr, x1 - radius, y1 - radius, radius, 0, M_PI / 2); |
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cairo_line_to(cr, x0 + radius, y1); |
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cairo_arc(cr, x0 + radius, y1 - radius, radius, M_PI / 2, M_PI); |
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cairo_close_path(cr); |
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} |
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static void |
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draw_button(cairo_t *cr, int x, int y, int width, int height, const char *text) |
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{ |
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cairo_pattern_t *gradient; |
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cairo_text_extents_t extents; |
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double bright = 0.15, dim = 0.02; |
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int radius = 10; |
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
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cairo_set_line_width (cr, 2); |
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rounded_rect(cr, x, y, x + width, y + height, radius); |
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cairo_set_source_rgb(cr, dim, dim, dim); |
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cairo_stroke(cr); |
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rounded_rect(cr, x + 2, y + 2, x + width, y + height, radius); |
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cairo_set_source_rgb(cr, 0.1, 0.1, 0.1); |
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cairo_stroke(cr); |
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rounded_rect(cr, x + 1, y + 1, x + width - 1, y + height - 1, radius - 1); |
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cairo_set_source_rgb(cr, bright, bright, bright); |
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cairo_stroke(cr); |
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rounded_rect(cr, x + 3, y + 3, x + width - 1, y + height - 1, radius - 1); |
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cairo_set_source_rgb(cr, dim, dim, dim); |
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cairo_stroke(cr); |
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rounded_rect(cr, x + 1, y + 1, x + width - 1, y + height - 1, radius - 1); |
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gradient = cairo_pattern_create_linear (0, y, 0, y + height); |
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cairo_pattern_add_color_stop_rgb(gradient, 0, 0.15, 0.15, 0.15); |
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cairo_pattern_add_color_stop_rgb(gradient, 0.5, 0.08, 0.08, 0.08); |
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cairo_pattern_add_color_stop_rgb(gradient, 0.5, 0.07, 0.07, 0.07); |
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cairo_pattern_add_color_stop_rgb(gradient, 1, 0.1, 0.1, 0.1); |
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cairo_set_source(cr, gradient); |
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cairo_fill(cr); |
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cairo_set_font_size(cr, 16); |
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cairo_text_extents(cr, text, &extents); |
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cairo_move_to(cr, x + (width - extents.width) / 2, y + (height - extents.height) / 2 - extents.y_bearing); |
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cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); |
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cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); |
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cairo_set_line_width (cr, 4); |
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cairo_text_path(cr, text); |
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cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); |
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cairo_stroke_preserve(cr); |
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cairo_set_source_rgb(cr, 1, 1, 1); |
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cairo_fill(cr); |
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} |
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static struct egl_surface * |
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overlay_create(int x, int y, int width, int height) |
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{ |
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struct egl_surface *es; |
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cairo_surface_t *surface; |
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cairo_t *cr; |
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int total_width, button_x, button_y; |
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const int button_width = 150; |
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const int button_height = 40; |
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const int spacing = 50; |
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surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
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width, height); |
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cr = cairo_create(surface); |
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cairo_set_source_rgba(cr, 0.1, 0.1, 0.1, 0.7); |
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
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cairo_paint(cr); |
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total_width = button_width * 2 + spacing; |
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button_x = (width - total_width) / 2; |
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button_y = height - button_height - 20; |
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draw_button(cr, button_x, button_y, button_width, button_height, "Previous"); |
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button_x += button_width + spacing; |
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draw_button(cr, button_x, button_y, button_width, button_height, "Next"); |
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cairo_destroy(cr); |
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es = egl_surface_create_from_cairo_surface(surface, x, y, width, height); |
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cairo_surface_destroy(surface); |
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return es;
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} |
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static void |
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draw_surface(struct egl_surface *es) |
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{ |
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@ -356,6 +464,8 @@ repaint(void *data) |
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} |
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wl_surface_iterator_destroy(iterator); |
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draw_surface(ec->overlay); |
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draw_surface(ec->pointer); |
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eglSwapBuffers(ec->display, ec->surface); |
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@ -585,6 +695,7 @@ wl_compositor_create(struct wl_display *display) |
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filename = "background.jpg"; |
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ec->background = background_create(filename, 1280, 800); |
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ec->pointer = pointer_create(100, 100, 64, 64); |
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ec->overlay = overlay_create(0, ec->height - 200, ec->width, 200); |
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ec->gem_fd = open(gem_device, O_RDWR); |
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if (ec->gem_fd < 0) { |
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