[PATCH weston 8/8] clients: add scaler test app
Jonny Lamb
jonny.lamb at collabora.co.uk
Tue Nov 26 09:19:48 PST 2013
This client tests the wl_scaler and wl_surface_scaler protocol
extensions by cropping and then scaling a surface to ensure it is
rendered correctly. More details in comments in the code.
---
clients/.gitignore | 3 +
clients/Makefile.am | 8 ++
clients/scaler.c | 215 ++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 226 insertions(+)
create mode 100644 clients/scaler.c
diff --git a/clients/.gitignore b/clients/.gitignore
index 92e1659..c1dcc21 100644
--- a/clients/.gitignore
+++ b/clients/.gitignore
@@ -11,6 +11,7 @@ weston-image
weston-nested
weston-nested-client
weston-resizor
+weston-scaler
weston-simple-egl
weston-simple-shm
weston-simple-touch
@@ -27,6 +28,8 @@ weston-keyboard
libtoytoolkit.a
screenshooter-client-protocol.h
screenshooter-protocol.c
+scaler-client-protocol.h
+scaler-protocol.c
tablet-shell-client-protocol.h
tablet-shell-protocol.c
text-client-protocol.h
diff --git a/clients/Makefile.am b/clients/Makefile.am
index 032d900..b562628 100644
--- a/clients/Makefile.am
+++ b/clients/Makefile.am
@@ -78,6 +78,7 @@ clients_programs = \
weston-transformed \
weston-fullscreen \
weston-calibrator \
+ weston-scaler \
$(subsurfaces) \
$(full_gl_client_programs) \
$(cairo_glesv2_programs)
@@ -97,6 +98,8 @@ libtoytoolkit_la_SOURCES = \
window.h \
text-cursor-position-protocol.c \
text-cursor-position-client-protocol.h \
+ scaler-protocol.c \
+ scaler-client-protocol.h \
workspaces-protocol.c \
workspaces-client-protocol.h
@@ -135,6 +138,9 @@ weston_smoke_LDADD = libtoytoolkit.la
weston_resizor_SOURCES = resizor.c
weston_resizor_LDADD = libtoytoolkit.la
+weston_scaler_SOURCES = scaler.c
+weston_scaler_LDADD = libtoytoolkit.la
+
if HAVE_CAIRO_GLESV2
cairo_glesv2_programs = weston-nested weston-nested-client
@@ -225,6 +231,8 @@ BUILT_SOURCES = \
desktop-shell-protocol.c \
tablet-shell-client-protocol.h \
tablet-shell-protocol.c \
+ scaler-client-protocol.h \
+ scaler-protocol.c \
workspaces-client-protocol.h \
workspaces-protocol.c
diff --git a/clients/scaler.c b/clients/scaler.c
new file mode 100644
index 0000000..f5ae226
--- /dev/null
+++ b/clients/scaler.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright © 2008 Kristian Høgsberg
+ * Copyright © 2013 Collabora, Ltd.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <cairo.h>
+
+#include <linux/input.h>
+
+#include "window.h"
+#include "scaler-client-protocol.h"
+
+#define BUFFER_SCALE 2
+static const int BUFFER_WIDTH = 421 * BUFFER_SCALE;
+static const int BUFFER_HEIGHT = 337 * BUFFER_SCALE;
+static const int SURFACE_WIDTH = 55 * 4;
+static const int SURFACE_HEIGHT = 77 * 4;
+static const double RECT_X = 21 * BUFFER_SCALE; /* buffer coords */
+static const double RECT_Y = 25 * BUFFER_SCALE;
+static const double RECT_W = 55 * BUFFER_SCALE;
+static const double RECT_H = 77 * BUFFER_SCALE;
+
+struct box {
+ struct display *display;
+ struct window *window;
+ struct widget *widget;
+ int width, height;
+
+ struct wl_scaler *scaler;
+ struct wl_surface_scaler *surface_scaler;
+};
+
+static void
+resize_handler(struct widget *widget,
+ int32_t width, int32_t height, void *data)
+{
+ struct box *box = data;
+
+ /* Dont resize me */
+ widget_set_size(box->widget, box->width, box->height);
+}
+
+static void
+redraw_handler(struct widget *widget, void *data)
+{
+ struct box *box = data;
+ cairo_surface_t *surface;
+ cairo_t *cr;
+
+ surface = window_get_surface(box->window);
+ if (surface == NULL ||
+ cairo_surface_status(surface) != CAIRO_STATUS_SUCCESS) {
+ fprintf(stderr, "failed to create cairo egl surface\n");
+ return;
+ }
+
+ cr = cairo_create(surface);
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_line_width(cr, 1.0);
+ cairo_translate(cr, RECT_X, RECT_Y);
+
+ /* red background */
+ cairo_set_source_rgba(cr, 255, 0, 0, 255);
+ cairo_paint(cr);
+
+ /* blue box */
+ cairo_set_source_rgba(cr, 0, 0, 255, 255);
+ cairo_rectangle(cr, 0, 0, RECT_W, RECT_H);
+ cairo_fill(cr);
+
+ /* black border outside the box */
+ cairo_set_source_rgb(cr, 0, 0, 0);
+ cairo_move_to(cr, 0, RECT_H + 0.5);
+ cairo_line_to(cr, RECT_W, RECT_H + 0.5);
+ cairo_stroke(cr);
+
+ /* white border inside the box */
+ cairo_set_source_rgb(cr, 1, 1, 1);
+ cairo_move_to(cr, RECT_W - 0.5, 0);
+ cairo_line_to(cr, RECT_W - 0.5, RECT_H);
+ cairo_stroke(cr);
+
+ /* the green border on inside the box, to be split half by crop */
+ cairo_set_source_rgb(cr, 0, 1, 0);
+ cairo_move_to(cr, 0.5, RECT_H);
+ cairo_line_to(cr, 0.5, 0);
+ cairo_move_to(cr, 0, 0.5);
+ cairo_line_to(cr, RECT_W, 0.5);
+ cairo_stroke(cr);
+
+ cairo_destroy(cr);
+
+ /* TODO: buffer_transform */
+
+ cairo_surface_destroy(surface);
+}
+
+static void
+global_handler(struct display *display, uint32_t name,
+ const char *interface, uint32_t version, void *data)
+{
+ struct box *box = data;
+ wl_fixed_t src_x, src_y, src_width, src_height;
+
+ /* Cut the green border in half, take white border fully in,
+ * and black border fully out. The borders are 1px wide in buffer.
+ *
+ * The gl-renderer uses linear texture sampling, this means the
+ * top and left edges go to 100% green, bottom goes to 50% blue/black,
+ * right edge has thick white sliding to 50% red.
+ */
+ src_x = wl_fixed_from_double((RECT_X + 0.5) / BUFFER_SCALE);
+ src_y = wl_fixed_from_double((RECT_Y + 0.5) / BUFFER_SCALE);
+ src_width = wl_fixed_from_double((RECT_W - 0.5) / BUFFER_SCALE);
+ src_height = wl_fixed_from_double((RECT_H - 0.5) / BUFFER_SCALE);
+
+ if (strcmp(interface, "wl_scaler") == 0) {
+ box->scaler = display_bind(display, name,
+ &wl_scaler_interface, 1);
+
+ box->surface_scaler = wl_scaler_get_surface_scaler(box->scaler,
+ widget_get_wl_surface(box->widget));
+
+ wl_surface_scaler_set(box->surface_scaler,
+ src_x, src_y, src_width, src_height,
+ SURFACE_WIDTH, SURFACE_HEIGHT); /* dst */
+ }
+}
+
+static void
+button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button, enum wl_pointer_button_state state, void *data)
+{
+ struct box *box = data;
+
+ if (button != BTN_LEFT)
+ return;
+
+ if (state == WL_POINTER_BUTTON_STATE_PRESSED) {
+ window_move(box->window, input,
+ display_get_serial(box->display));
+ }
+}
+
+static void
+touch_down_handler(struct widget *widget, struct input *input,
+ uint32_t serial, uint32_t time, int32_t id,
+ float x, float y, void *data)
+{
+ struct box *box = data;
+ window_move(box->window, input,
+ display_get_serial(box->display));
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct box box;
+ struct display *d;
+ struct timeval tv;
+
+ d = display_create(&argc, argv);
+ if (d == NULL) {
+ fprintf(stderr, "failed to create display: %m\n");
+ return -1;
+ }
+
+ gettimeofday(&tv, NULL);
+ srandom(tv.tv_usec);
+
+ box.width = BUFFER_WIDTH / BUFFER_SCALE;
+ box.height = BUFFER_HEIGHT / BUFFER_SCALE;
+ box.display = d;
+ box.window = window_create(d);
+ box.widget = window_add_widget(box.window, &box);
+ window_set_title(box.window, "Scaler Test Box");
+ window_set_buffer_scale(box.window, BUFFER_SCALE);
+
+ widget_set_resize_handler(box.widget, resize_handler);
+ widget_set_redraw_handler(box.widget, redraw_handler);
+ widget_set_button_handler(box.widget, button_handler);
+ widget_set_default_cursor(box.widget, CURSOR_HAND1);
+ widget_set_touch_down_handler(box.widget, touch_down_handler);
+
+ window_schedule_resize(box.window, box.width, box.height);
+
+ display_set_user_data(box.display, &box);
+ display_set_global_handler(box.display, global_handler);
+
+ display_run(d);
+
+ window_destroy(box.window);
+ return 0;
+}
--
1.8.4.2
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