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Rebase of wakira's wp_fractional_scale_v1 support (#15965)

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A rebase of earlier PR https://github.com/libretro/RetroArch/pull/15355
No changes added (except for one log).
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zoltanvb 2023-11-30 12:29:38 +01:00 committed by GitHub
parent fb864b889b
commit fd04c8ca57
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10 changed files with 220 additions and 47 deletions
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4
.gitignore vendored
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@ -213,6 +213,10 @@ retroarch_switch.nso
*_irx.c
# Wayland
gfx/common/wayland/fractional-scale-v1.c
gfx/common/wayland/fractional-scale-v1.h
gfx/common/wayland/viewporter.c
gfx/common/wayland/viewporter.h
gfx/common/wayland/idle-inhibit-unstable-v1.c
gfx/common/wayland/idle-inhibit-unstable-v1.h
gfx/common/wayland/xdg-shell-unstable-v6.c

1
Makefile.common
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@ -1240,6 +1240,7 @@ ifeq ($(HAVE_WAYLAND), 1)
input/common/wayland_common.o \
input/drivers/wayland_input.o \
gfx/common/wayland_common.o \
gfx/common/wayland/fractional-scale-v1.o \
gfx/common/wayland/viewporter.o \
gfx/common/wayland/xdg-shell.o \
gfx/common/wayland/idle-inhibit-unstable-v1.o \

4
deps/wayland-protocols/staging/fractional-scale/README vendored Normal file
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@ -0,0 +1,4 @@
wp fractional scale protocol
Maintainers:
Kenny Levinsen <kl@kl.wtf>

102
deps/wayland-protocols/staging/fractional-scale/fractional-scale-v1.xml vendored Normal file
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@ -0,0 +1,102 @@
<?xml version="1.0" encoding="UTF-8"?>
<protocol name="fractional_scale_v1">
<copyright>
Copyright © 2022 Kenny Levinsen
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<description summary="Protocol for requesting fractional surface scales">
This protocol allows a compositor to suggest for surfaces to render at
fractional scales.
A client can submit scaled content by utilizing wp_viewport. This is done by
creating a wp_viewport object for the surface and setting the destination
rectangle to the surface size before the scale factor is applied.
The buffer size is calculated by multiplying the surface size by the
intended scale.
The wl_surface buffer scale should remain set to 1.
If a surface has a surface-local size of 100 px by 50 px and wishes to
submit buffers with a scale of 1.5, then a buffer of 150px by 75 px should
be used and the wp_viewport destination rectangle should be 100 px by 50 px.
For toplevel surfaces, the size is rounded halfway away from zero. The
rounding algorithm for subsurface position and size is not defined.
</description>
<interface name="wp_fractional_scale_manager_v1" version="1">
<description summary="fractional surface scale information">
A global interface for requesting surfaces to use fractional scales.
</description>
<request name="destroy" type="destructor">
<description summary="unbind the fractional surface scale interface">
Informs the server that the client will not be using this protocol
object anymore. This does not affect any other objects,
wp_fractional_scale_v1 objects included.
</description>
</request>
<enum name="error">
<entry name="fractional_scale_exists" value="0"
summary="the surface already has a fractional_scale object associated"/>
</enum>
<request name="get_fractional_scale">
<description summary="extend surface interface for scale information">
Create an add-on object for the the wl_surface to let the compositor
request fractional scales. If the given wl_surface already has a
wp_fractional_scale_v1 object associated, the fractional_scale_exists
protocol error is raised.
</description>
<arg name="id" type="new_id" interface="wp_fractional_scale_v1"
summary="the new surface scale info interface id"/>
<arg name="surface" type="object" interface="wl_surface"
summary="the surface"/>
</request>
</interface>
<interface name="wp_fractional_scale_v1" version="1">
<description summary="fractional scale interface to a wl_surface">
An additional interface to a wl_surface object which allows the compositor
to inform the client of the preferred scale.
</description>
<request name="destroy" type="destructor">
<description summary="remove surface scale information for surface">
Destroy the fractional scale object. When this object is destroyed,
preferred_scale events will no longer be sent.
</description>
</request>
<event name="preferred_scale">
<description summary="notify of new preferred scale">
Notification of a new preferred scale for this surface that the
compositor suggests that the client should use.
The sent scale is the numerator of a fraction with a denominator of 120.
</description>
<arg name="scale" type="uint" summary="the new preferred scale"/>
</event>
</interface>
</protocol>

2
gfx/common/wayland/generate_wayland_protos.sh
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@ -67,4 +67,4 @@ generate_source 'unstable/xdg-decoration' 'xdg-decoration-unstable-v1'
generate_source 'unstable/idle-inhibit' 'idle-inhibit-unstable-v1'
generate_source 'unstable/pointer-constraints' 'pointer-constraints-unstable-v1'
generate_source 'unstable/relative-pointer' 'relative-pointer-unstable-v1'
generate_source 'staging/fractional-scale' 'fractional-scale-v1'

45
gfx/common/wayland_common.c
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@ -130,8 +130,10 @@ void xdg_toplevel_handle_configure_common(gfx_ctx_wayland_data_t *wl,
{
wl->width = width;
wl->height = height;
wl->buffer_width = wl->width * wl->buffer_scale;
wl->buffer_height = wl->height * wl->buffer_scale;
wl->buffer_width = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl->width, wl->fractional_scale_num) : wl->width * wl->buffer_scale;
wl->buffer_height = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl->height, wl->fractional_scale_num) : wl->height * wl->buffer_scale;
wl->resize = true;
if (wl->viewport) /* Update viewport */
wp_viewport_set_destination(wl->viewport, wl->width, wl->height);
@ -193,8 +195,10 @@ void libdecor_frame_handle_configure_common(struct libdecor_frame *frame,
{
wl->width = width;
wl->height = height;
wl->buffer_width = width * wl->buffer_scale;
wl->buffer_height = height * wl->buffer_scale;
wl->buffer_width = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(width, wl->fractional_scale_num) : width * wl->buffer_scale;
wl->buffer_height = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(height, wl->fractional_scale_num) : height * wl->buffer_scale;
wl->resize = true;
if (wl->viewport) /* Update viewport */
wp_viewport_set_destination(wl->viewport, wl->width, wl->height);
@ -243,8 +247,10 @@ void gfx_ctx_wl_get_video_size_common(void *data,
}
else
{
*width = wl->width * wl->pending_buffer_scale;
*height = wl->height * wl->pending_buffer_scale;
*width = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl->width, wl->pending_fractional_scale_num) : wl->width * wl->pending_buffer_scale;
*height = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl->height, wl->pending_fractional_scale_num) : wl->height * wl->pending_buffer_scale;
}
}
@ -271,6 +277,8 @@ void gfx_ctx_wl_destroy_resources_common(gfx_ctx_wayland_data_t *wl)
if (wl->viewport)
wp_viewport_destroy(wl->viewport);
if (wl->fractional_scale)
wp_fractional_scale_v1_destroy(wl->fractional_scale);
if (wl->idle_inhibitor)
zwp_idle_inhibitor_v1_destroy(wl->idle_inhibitor);
if (wl->deco)
@ -322,6 +330,8 @@ void gfx_ctx_wl_destroy_resources_common(gfx_ctx_wayland_data_t *wl)
wl_shm_destroy (wl->shm);
if (wl->viewporter)
wp_viewporter_destroy(wl->viewporter);
if (wl->fractional_scale_manager)
wp_fractional_scale_manager_v1_destroy(wl->fractional_scale_manager);
if (wl->compositor)
wl_compositor_destroy(wl->compositor);
if (wl->registry)
@ -578,8 +588,8 @@ static void shm_buffer_paint_checkerboard(
static bool wl_draw_splash_screen(gfx_ctx_wayland_data_t *wl)
{
shm_buffer_t *buffer = create_shm_buffer(wl,
wl->width * wl->buffer_scale,
wl->height * wl->buffer_scale,
wl->buffer_width,
wl->buffer_height,
WL_SHM_FORMAT_XRGB8888);
if (!buffer)
@ -634,6 +644,9 @@ bool gfx_ctx_wl_init_common(
wl->last_buffer_scale = 1;
wl->buffer_scale = 1;
wl->pending_buffer_scale = 1;
wl->last_fractional_scale_num = FRACTIONAL_SCALE_V1_DEN;
wl->fractional_scale_num = FRACTIONAL_SCALE_V1_DEN;
wl->pending_fractional_scale_num = FRACTIONAL_SCALE_V1_DEN;
wl->floating_width = SPLASH_WINDOW_WIDTH;
wl->floating_height = SPLASH_WINDOW_HEIGHT;
@ -683,6 +696,13 @@ bool gfx_ctx_wl_init_common(
wl->surface = wl_compositor_create_surface(wl->compositor);
if (wl->viewporter)
wl->viewport = wp_viewporter_get_viewport(wl->viewporter, wl->surface);
if (wl->fractional_scale_manager)
{
wl->fractional_scale = wp_fractional_scale_manager_v1_get_fractional_scale(
wl->fractional_scale_manager, wl->surface);
wp_fractional_scale_v1_add_listener(wl->fractional_scale, &wp_fractional_scale_v1_listener, wl);
RARCH_LOG("[Wayland]: fractional_scale_v1 enabled\n");
}
wl_surface_add_listener(wl->surface, &wl_surface_listener, wl);
@ -810,8 +830,11 @@ bool gfx_ctx_wl_set_video_mode_common_size(gfx_ctx_wayland_data_t *wl,
if (!fullscreen)
{
wl->buffer_scale = wl->pending_buffer_scale;
wl->buffer_width *= wl->buffer_scale;
wl->buffer_height *= wl->buffer_scale;
wl->fractional_scale_num = wl->pending_fractional_scale_num;
wl->buffer_width = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl->buffer_width, wl->fractional_scale_num) : wl->buffer_width * wl->buffer_scale;
wl->buffer_height = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl->buffer_height, wl->fractional_scale_num) : wl->buffer_height * wl->buffer_scale;
}
if (wl->viewport) /* Update viewport */
wp_viewport_set_destination(wl->viewport, wl->width, wl->height);
@ -944,10 +967,12 @@ void gfx_ctx_wl_check_window_common(gfx_ctx_wayland_data_t *wl,
get_video_size(wl, &new_width, &new_height);
if ( wl->pending_buffer_scale != wl->buffer_scale
|| wl->pending_fractional_scale_num != wl->fractional_scale_num
|| new_width != *width
|| new_height != *height)
{
wl->buffer_scale = wl->pending_buffer_scale;
wl->fractional_scale_num = wl->pending_fractional_scale_num;
*width = new_width;
*height = new_height;
*resize = true;

3
gfx/drivers_context/wayland_ctx.c
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@ -108,8 +108,9 @@ static void gfx_ctx_wl_check_window(void *data, bool *quit,
static bool gfx_ctx_wl_set_resize(void *data, unsigned width, unsigned height)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->last_buffer_scale = wl->buffer_scale;
wl->last_fractional_scale_num = wl->fractional_scale_num;
if (!wl->fractional_scale)
wl_surface_set_buffer_scale(wl->surface, wl->buffer_scale);
#ifdef HAVE_EGL

2
gfx/drivers_context/wayland_vk_ctx.c
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@ -86,6 +86,8 @@ static bool gfx_ctx_wl_set_resize(void *data, unsigned width, unsigned height)
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->last_buffer_scale = wl->buffer_scale;
wl->last_fractional_scale_num = wl->fractional_scale_num;
if (!wl->fractional_scale)
wl_surface_set_buffer_scale(wl->surface, wl->buffer_scale);
if (vulkan_create_swapchain(&wl->vk, width, height, wl->swap_interval))

54
input/common/wayland_common.c
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@ -189,10 +189,12 @@ static void wl_pointer_handle_enter(void *data,
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->input.mouse.surface = surface;
wl->input.mouse.last_x = wl_fixed_to_int(
sx * (wl_fixed_t)wl->buffer_scale);
wl->input.mouse.last_y = wl_fixed_to_int(
sy * (wl_fixed_t)wl->buffer_scale);
wl->input.mouse.last_x = wl->fractional_scale ?
(int) FRACTIONAL_SCALE_MULT(wl_fixed_to_int(sx), wl->fractional_scale_num) :
wl_fixed_to_int(sx * (wl_fixed_t)wl->buffer_scale);
wl->input.mouse.last_y = wl->fractional_scale ?
(int) FRACTIONAL_SCALE_MULT(wl_fixed_to_int(sy), wl->fractional_scale_num) :
wl_fixed_to_int(sy * (wl_fixed_t)wl->buffer_scale);
wl->input.mouse.x = wl->input.mouse.last_x;
wl->input.mouse.y = wl->input.mouse.last_y;
wl->input.mouse.focus = true;
@ -223,10 +225,12 @@ static void wl_pointer_handle_motion(void *data,
wl_fixed_t sy)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->input.mouse.x = wl_fixed_to_int(
(wl_fixed_t)wl->buffer_scale * sx);
wl->input.mouse.y = wl_fixed_to_int(
(wl_fixed_t)wl->buffer_scale * sy);
wl->input.mouse.x = wl->fractional_scale ?
(int) FRACTIONAL_SCALE_MULT(wl_fixed_to_int(sx), wl->fractional_scale_num) :
wl_fixed_to_int((wl_fixed_t)wl->buffer_scale * sx);
wl->input.mouse.y = wl->fractional_scale ?
(int) FRACTIONAL_SCALE_MULT(wl_fixed_to_int(sy), wl->fractional_scale_num) :
wl_fixed_to_int((wl_fixed_t)wl->buffer_scale * sy);
}
static void wl_pointer_handle_button(void *data,
@ -331,10 +335,12 @@ static void wl_touch_handle_down(void *data,
{
wl->active_touch_positions[wl->num_active_touches].active = true;
wl->active_touch_positions[wl->num_active_touches].id = id;
wl->active_touch_positions[wl->num_active_touches].x = (unsigned)
wl_fixed_to_int(x * (wl_fixed_t)wl->buffer_scale);
wl->active_touch_positions[wl->num_active_touches].y = (unsigned)
wl_fixed_to_int(y * (wl_fixed_t)wl->buffer_scale);
wl->active_touch_positions[wl->num_active_touches].x = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl_fixed_to_int(x), wl->fractional_scale_num) :
(unsigned) wl_fixed_to_int(x * (wl_fixed_t)wl->buffer_scale);
wl->active_touch_positions[wl->num_active_touches].y = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl_fixed_to_int(y), wl->fractional_scale_num) :
(unsigned) wl_fixed_to_int(y * (wl_fixed_t)wl->buffer_scale);
wl->num_active_touches++;
break;
}
@ -415,10 +421,12 @@ static void wl_touch_handle_motion(void *data,
if ( wl->active_touch_positions[i].active &&
wl->active_touch_positions[i].id == id)
{
wl->active_touch_positions[i].x = (unsigned) wl_fixed_to_int(
x * (wl_fixed_t)wl->buffer_scale);
wl->active_touch_positions[i].y = (unsigned) wl_fixed_to_int(
y * (wl_fixed_t)wl->buffer_scale);
wl->active_touch_positions[i].x = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl_fixed_to_int(x), wl->fractional_scale_num) :
(unsigned) wl_fixed_to_int(x * (wl_fixed_t)wl->buffer_scale);
wl->active_touch_positions[i].y = wl->fractional_scale ?
FRACTIONAL_SCALE_MULT(wl_fixed_to_int(y), wl->fractional_scale_num) :
(unsigned) wl_fixed_to_int(y * (wl_fixed_t)wl->buffer_scale);
}
}
}
@ -592,6 +600,13 @@ static bool wl_current_outputs_remove(gfx_ctx_wayland_data_t *wl,
return false;
}
static void wp_fractional_scale_v1_preferred_scale(void *data, struct wp_fractional_scale_v1 *fractional_scale,
uint32_t scale)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->pending_fractional_scale_num = scale;
}
static void wl_surface_enter(void *data, struct wl_surface *wl_surface,
struct wl_output *output)
{
@ -697,6 +712,9 @@ static void wl_registry_handle_global(void *data, struct wl_registry *reg,
else if (string_is_equal(interface, wp_viewporter_interface.name))
wl->viewporter = (struct wp_viewporter*)wl_registry_bind(reg,
id, &wp_viewporter_interface, MIN(version, 1));
else if (string_is_equal(interface, wp_fractional_scale_manager_v1_interface.name))
wl->fractional_scale_manager = (struct wp_fractional_scale_manager_v1*)
wl_registry_bind(reg, id, &wp_fractional_scale_manager_v1_interface, MIN(version, 1));
else if (string_is_equal(interface, wl_output_interface.name))
{
display_output_t *od = (display_output_t*)
@ -1031,6 +1049,10 @@ const struct xdg_surface_listener xdg_surface_listener = {
xdg_surface_handle_configure,
};
const struct wp_fractional_scale_v1_listener wp_fractional_scale_v1_listener = {
wp_fractional_scale_v1_preferred_scale,
};
const struct wl_surface_listener wl_surface_listener = {
wl_surface_enter,
wl_surface_leave,

12
input/common/wayland_common.h
View File

@ -34,6 +34,7 @@
#endif
/* Generated from wayland protocol files by generate_wayland_protos.sh */
#include "../../gfx/common/wayland/fractional-scale-v1.h"
#include "../../gfx/common/wayland/viewporter.h"
#include "../../gfx/common/wayland/idle-inhibit-unstable-v1.h"
#include "../../gfx/common/wayland/xdg-shell.h"
@ -41,6 +42,10 @@
#include "../../gfx/common/wayland/pointer-constraints-unstable-v1.h"
#include "../../gfx/common/wayland/relative-pointer-unstable-v1.h"
#define FRACTIONAL_SCALE_V1_DEN 120
#define FRACTIONAL_SCALE_MULT(v, scale_num) \
(((v) * (scale_num) + FRACTIONAL_SCALE_V1_DEN / 2) / FRACTIONAL_SCALE_V1_DEN)
#define UDEV_KEY_MAX 0x2ff
#define UDEV_MAX_KEYS (UDEV_KEY_MAX + 7) / 8
@ -144,9 +149,11 @@ typedef struct gfx_ctx_wayland_data
struct wl_registry *registry;
struct wl_compositor *compositor;
struct wp_viewporter *viewporter;
struct wp_fractional_scale_manager_v1 *fractional_scale_manager;
struct wl_surface *surface;
struct xdg_surface *xdg_surface;
struct wp_viewport *viewport;
struct wp_fractional_scale_v1 *fractional_scale;
struct xdg_wm_base *xdg_shell;
struct xdg_toplevel *xdg_toplevel;
struct wl_keyboard *wl_keyboard;
@ -203,6 +210,9 @@ typedef struct gfx_ctx_wayland_data
unsigned last_buffer_scale;
unsigned pending_buffer_scale;
unsigned buffer_scale;
unsigned last_fractional_scale_num;
unsigned pending_fractional_scale_num;
unsigned fractional_scale_num;
bool core_hw_context_enable;
bool fullscreen;
@ -239,6 +249,8 @@ extern const struct wl_touch_listener touch_listener;
extern const struct wl_seat_listener seat_listener;
extern const struct wp_fractional_scale_v1_listener wp_fractional_scale_v1_listener;
extern const struct wl_surface_listener wl_surface_listener;
extern const struct xdg_wm_base_listener xdg_shell_listener;