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Implement surface copy request, use it for egl gears.

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dev
Kristian Høgsberg 16 years ago
parent 1cbaa6abac
commit 78231c8dd0
5 changed files with 162 additions and 74 deletions
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  1. 26
      egl-compositor.c
  2. 13
      gears.c
  3. 2
      gears.h
  4. 1
      wayland.h
  5. 190
      window.c

26
egl-compositor.c
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@ -149,7 +149,7 @@ notify_surface_attach(struct wl_compositor *compositor,
/* FIXME: We need to use a single buffer config without depth
* or stencil buffers here to keep egl from creating auxillary
* buffers for the pixmap here. */
sd->surface = eglCreatePixmapForName(ec->display, ec->config,
sd->surface = eglCreateSurfaceForName(ec->display, ec->config,
name, width, height, stride, NULL);
glBindTexture(GL_TEXTURE_2D, sd->texture);
@ -185,15 +185,29 @@ notify_surface_copy(struct wl_compositor *compositor,
uint32_t name, uint32_t stride,
int32_t x, int32_t y, int32_t width, int32_t height)
{
/* FIXME: Eek, how do we do this... extend the DRI CopyBuffer
* extension and expose it in eagle? Make the surface the
* draw buffer and the named buffer the read buffer and use
* glCopyPixels? */
struct egl_compositor *ec = (struct egl_compositor *) compositor;
EGLSurface src;
struct surface_data *sd;
sd = wl_surface_get_data(surface);
/* FIXME: glCopyPixels should work, but then we'll have to
* call eglMakeCurrent to set up the src and dest surfaces
* first. This seems cheaper, but maybe there's a better way
* to accomplish this. */
src = eglCreateSurfaceForName(ec->display, ec->config,
name, x + width, y + height, stride, NULL);
eglCopyNativeBuffers(ec->display, sd->surface, GL_FRONT_LEFT, dst_x, dst_y,
src, GL_FRONT_LEFT, x, y, width, height);
schedule_repaint(ec);
}
static void
notify_surface_damage(struct wl_compositor *compositor,
struct wl_surface *surface)
struct wl_surface *surface,
int32_t x, int32_t y, int32_t width, int32_t height)
{
struct egl_compositor *ec = (struct egl_compositor *) compositor;

13
gears.c
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@ -125,7 +125,8 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
}
struct gears *
gears_create(void)
gears_create(GLfloat clear_red, GLfloat clear_green,
GLfloat clear_blue, GLfloat clear_alpha)
{
static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0};
static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0};
@ -166,6 +167,14 @@ gears_create(void)
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
/* We're generating premultiplied alpha so multiply in the
* alpha. The gears are solid color and doesn't have
* anti-aliased edges, they're ok. */
glClearColor(clear_red * clear_alpha,
clear_green * clear_alpha,
clear_blue * clear_alpha,
clear_alpha);
return gears;
}
@ -174,7 +183,7 @@ gears_draw(struct gears *gears, GLfloat angle)
{
GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
glClear(GL_DEPTH_BUFFER_BIT);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();

2
gears.h
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@ -3,7 +3,7 @@
struct gears;
struct gears *gears_create(void);
struct gears *gears_create(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
void gears_draw(struct gears *gears, GLfloat angle);

1
wayland.h
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@ -139,7 +139,6 @@ struct wl_compositor_interface {
struct wl_surface *surface,
int32_t x, int32_t y,
int32_t width, int32_t height);
};
void wl_display_set_compositor(struct wl_display *display,

190
window.c
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@ -27,65 +27,115 @@ static void die(const char *msg)
exit(EXIT_FAILURE);
}
static uint32_t name_cairo_surface(int fd, cairo_surface_t *surface)
struct buffer {
int width, height, stride;
uint32_t name, handle;
};
static struct buffer *
buffer_create(int fd, int width, int height, int stride)
{
struct buffer *buffer;
struct drm_i915_gem_create create;
struct drm_gem_flink flink;
struct drm_i915_gem_pwrite pwrite;
int32_t width, height, stride;
void *data;
width = cairo_image_surface_get_width(surface);
height = cairo_image_surface_get_height(surface);
stride = cairo_image_surface_get_stride(surface);
data = cairo_image_surface_get_data(surface);
buffer = malloc(sizeof *buffer);
buffer->width = width;
buffer->height = height;
buffer->stride = stride;
memset(&create, 0, sizeof(create));
create.size = height * stride;
if (ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create) != 0) {
fprintf(stderr, "gem create failed: %m\n");
return 0;
}
pwrite.handle = create.handle;
pwrite.offset = 0;
pwrite.size = height * stride;
pwrite.data_ptr = (uint64_t) (uintptr_t) data;
if (ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite) < 0) {
fprintf(stderr, "gem pwrite failed: %m\n");
return 0;
free(buffer);
return NULL;
}
flink.handle = create.handle;
if (ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink) != 0) {
fprintf(stderr, "gem flink failed: %m\n");
free(buffer);
return 0;
}
#if 0
/* We need to hold on to the handle until the server has received
* the attach request... we probably need a confirmation event.
* I guess the breadcrumb idea will suffice. */
buffer->handle = flink.handle;
buffer->name = flink.name;
return buffer;
}
static int
buffer_destroy(struct buffer *buffer, int fd)
{
struct drm_gem_close close;
close.handle = create.handle;
close.handle = buffer->handle;
if (ioctl(fd, DRM_IOCTL_GEM_CLOSE, &close) < 0) {
fprintf(stderr, "gem close failed: %m\n");
return -1;
}
free(buffer);
return 0;
}
#endif
return flink.name;
static int
buffer_data(struct buffer *buffer, int fd, void *data)
{
struct drm_i915_gem_pwrite pwrite;
pwrite.handle = buffer->handle;
pwrite.offset = 0;
pwrite.size = buffer->height * buffer->stride;
pwrite.data_ptr = (uint64_t) (uintptr_t) data;
if (ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite) < 0) {
fprintf(stderr, "gem pwrite failed: %m\n");
return -1;
}
return 0;
}
static struct buffer *
buffer_create_from_cairo_surface(int fd, cairo_surface_t *surface)
{
struct buffer *buffer;
int32_t width, height, stride;
void *data;
width = cairo_image_surface_get_width(surface);
height = cairo_image_surface_get_height(surface);
stride = cairo_image_surface_get_stride(surface);
data = cairo_image_surface_get_data(surface);
buffer = buffer_create(fd, width, height, stride);
if (buffer == NULL)
return NULL;
if (buffer_data(buffer, fd, data) < 0) {
buffer_destroy(buffer, fd);
return NULL;
}
return buffer;
}
struct window {
struct wl_surface *surface;
int x, y, width, height, stride;
int x, y, width, height;
int drag_x, drag_y, last_x, last_y;
int state;
uint32_t name;
int fd;
int redraw_scheduled;
cairo_pattern_t *background;
struct buffer *buffer;
struct buffer *egl_buffer;
GLfloat gears_angle;
struct gears *gears;
@ -104,11 +154,11 @@ draw_window(void *data)
int border = 2, radius = 5, h;
int margin = (border + 1) / 2;
cairo_text_extents_t extents;
struct buffer *buffer;
const static char title[] = "Wayland First Post";
surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
window->width,
window->height);
window->width, window->height);
cr = cairo_create(surface);
cairo_set_line_width (cr, border);
@ -122,7 +172,7 @@ draw_window(void *data)
window->height - margin);
cairo_line_to(cr, margin, window->height - margin);
cairo_close_path(cr);
cairo_set_source_rgba(cr, 0.2, 0.2, 0.2, 0.9);
cairo_set_source(cr, window->background);
cairo_fill_preserve(cr);
cairo_set_source_rgba(cr, 0, 0, 0, 1);
cairo_set_font_size(cr, 14);
@ -137,39 +187,27 @@ draw_window(void *data)
cairo_destroy(cr);
window->stride = cairo_image_surface_get_stride(surface);
if (window->buffer != NULL)
buffer_destroy(window->buffer, window->fd);
buffer = buffer_create_from_cairo_surface(window->fd, surface);
window->buffer = buffer;
window->name = name_cairo_surface(window->fd, surface);
cairo_surface_destroy(surface);
wl_surface_attach(window->surface, window->name,
window->width, window->height, window->stride);
wl_surface_map(window->surface,
window->x, window->y,
window->width, window->height);
if (window->egl_surface != EGL_NO_SURFACE)
eglDestroySurface(window->display, window->egl_surface);
/* FIXME: We need to get the stride right here in a chipset
* independent way. Maybe do it in name_cairo_surface(). */
window->egl_surface = eglCreatePixmapForName(window->display,
window->config, window->name,
window->width, window->height,
window->stride, NULL);
wl_surface_attach(window->surface, buffer->name,
buffer->width, buffer->height, buffer->stride);
if (surface == NULL)
die("failed to create surface\n");
/* FIXME: Free window->buffer when we receive the ack event. */
if (!eglMakeCurrent(window->display,
window->egl_surface, window->egl_surface, window->context))
die("failed to make context current\n");
glViewport(border, window->height - h - margin - 300, 300, 300);
if (window->gears != NULL)
buffer = window->egl_buffer;
gears_draw(window->gears, window->gears_angle);
wl_surface_copy(window->surface, 20, 50,
buffer->name, buffer->stride,
0, 0, buffer->width, buffer->height);
wl_surface_map(window->surface,
window->x, window->y,
buffer->width, buffer->height);
window->redraw_scheduled = 0;
@ -215,6 +253,10 @@ void event_handler(struct wl_display *display,
case WINDOW_RESIZING_LOWER_RIGHT:
window->width = window->drag_x + arg1;
window->height = window->drag_y + arg2;
if (window->width < 400)
window->width = 400;
if (window->height < 400)
window->height = 400;
if (!window->redraw_scheduled) {
window->redraw_scheduled = 1;
g_idle_add(draw_window, window);
@ -264,11 +306,14 @@ window_create(struct wl_display *display, int fd)
EGLint major, minor, count;
EGLConfig configs[64];
struct window *window;
struct buffer *buffer;
const GLfloat red = 0.3, green = 0.3, blue = 0.3, alpha = 0.9;
window = malloc(sizeof *window);
if (window == NULL)
return NULL;
memset(window, 0, sizeof *window);
window->surface = wl_display_create_surface(display);
window->x = 200;
window->y = 200;
@ -276,7 +321,7 @@ window_create(struct wl_display *display, int fd)
window->height = 500;
window->state = WINDOW_STABLE;
window->fd = fd;
window->gears = NULL;
window->background = cairo_pattern_create_rgba (red, green, blue, alpha);
window->display = eglCreateDisplayNative("/dev/dri/card0", "i965");
if (window->display == NULL)
@ -293,13 +338,29 @@ window_create(struct wl_display *display, int fd)
if (window->context == NULL)
die("failed to create context\n");
window->egl_surface = EGL_NO_SURFACE;
/* FIXME: We need to get the stride right here in a chipset
* independent way. Maybe do it in name_cairo_surface(). */
buffer = buffer_create(window->fd, 300, 300, (300 * 4 + 15) & ~15);
window->egl_buffer = buffer;
window->egl_surface = eglCreateSurfaceForName(window->display,
window->config, buffer->name,
buffer->width, buffer->height,
buffer->stride, NULL);
draw_window(window);
if (window->egl_surface == NULL)
die("failed to create egl surface\n");
window->gears = gears_create();
if (!eglMakeCurrent(window->display,
window->egl_surface, window->egl_surface, window->context))
die("failed to make context current\n");
glViewport(0, 0, 300, 300);
window->gears = gears_create(red, green, blue, alpha);
window->gears_angle = 0.0;
draw_window(window);
return window;
}
@ -307,10 +368,15 @@ static gboolean
draw(gpointer data)
{
struct window *window = data;
struct buffer *buffer;
gears_draw(window->gears, window->gears_angle);
wl_surface_damage(window->surface, 0, 0,
window->width, window->height);
buffer = window->egl_buffer;
wl_surface_copy(window->surface, 20, 50,
buffer->name, buffer->stride,
0, 0, buffer->width, buffer->height);
window->gears_angle += 1;
return TRUE;

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