From 5b1ce84350d78fa1bf7dc8ff421ae7c919542346 Mon Sep 17 00:00:00 2001
From: Tony Crisci <tony@dubstepdish.com>
Date: Mon, 14 Aug 2017 16:30:53 -0400
Subject: implement buffer transform
---
include/wlr/types/wlr_surface.h | 2 +-
types/wlr_surface.c | 107 ++++++++++++++++++++++++++++++++++++----
2 files changed, 98 insertions(+), 11 deletions(-)
diff --git a/include/wlr/types/wlr_surface.h b/include/wlr/types/wlr_surface.h
index d3104741..6dbee113 100644
--- a/include/wlr/types/wlr_surface.h
+++ b/include/wlr/types/wlr_surface.h
@@ -23,7 +23,7 @@ struct wlr_surface_state {
int32_t sx, sy;
pixman_region32_t surface_damage, buffer_damage;
pixman_region32_t opaque, input;
- uint32_t transform;
+ enum wl_output_transform transform;
int32_t scale;
};
diff --git a/types/wlr_surface.c b/types/wlr_surface.c
index 2345bfd1..1872ac3b 100644
--- a/types/wlr_surface.c
+++ b/types/wlr_surface.c
@@ -91,11 +91,33 @@ static void surface_set_input_region(struct wl_client *client,
}
}
+static void wlr_surface_get_effective_size(struct wlr_surface *surface,
+ int swidth, int sheight, int *width, int *height) {
+ int scale = surface->current.scale;
+ enum wl_output_transform transform = surface->current.transform;
+ int _width = swidth / scale;
+ int _height = sheight / scale;
+
+ if (transform == WL_OUTPUT_TRANSFORM_90 ||
+ transform == WL_OUTPUT_TRANSFORM_270 ||
+ transform == WL_OUTPUT_TRANSFORM_FLIPPED_90 ||
+ transform == WL_OUTPUT_TRANSFORM_FLIPPED_270) {
+ int tmp = _width;
+ _width = _height;
+ _height = tmp;
+ }
+
+ *width = _width;
+ *height = _height;
+}
+
static void wlr_surface_to_buffer_region(struct wlr_surface *surface,
- pixman_region32_t *surface_region, pixman_region32_t *buffer_region) {
+ pixman_region32_t *surface_region, pixman_region32_t *buffer_region,
+ int width, int height) {
pixman_box32_t *src_rects, *dest_rects;
int nrects, i;
int scale = surface->current.scale;
+ enum wl_output_transform transform = surface->current.transform;
src_rects = pixman_region32_rectangles(surface_region, &nrects);
dest_rects = malloc(nrects * sizeof(*dest_rects));
@@ -104,10 +126,66 @@ static void wlr_surface_to_buffer_region(struct wlr_surface *surface,
}
for (i = 0; i < nrects; i++) {
- dest_rects[i].x1 = src_rects[i].x1 * scale;
- dest_rects[i].y1 = src_rects[i].y1 * scale;
- dest_rects[i].x2 = src_rects[i].x2 * scale;
- dest_rects[i].y2 = src_rects[i].y2 * scale;
+ switch (transform) {
+ default:
+ case WL_OUTPUT_TRANSFORM_NORMAL:
+ dest_rects[i].x1 = src_rects[i].x1;
+ dest_rects[i].y1 = src_rects[i].y1;
+ dest_rects[i].x2 = src_rects[i].x2;
+ dest_rects[i].y2 = src_rects[i].y2;
+ break;
+ case WL_OUTPUT_TRANSFORM_90:
+ dest_rects[i].x1 = height - src_rects[i].y2;
+ dest_rects[i].y1 = src_rects[i].x1;
+ dest_rects[i].x2 = height - src_rects[i].y1;
+ dest_rects[i].y2 = src_rects[i].x2;
+ break;
+ case WL_OUTPUT_TRANSFORM_180:
+ dest_rects[i].x1 = width - src_rects[i].x2;
+ dest_rects[i].y1 = height - src_rects[i].y2;
+ dest_rects[i].x2 = width - src_rects[i].x1;
+ dest_rects[i].y2 = height - src_rects[i].y1;
+ break;
+ case WL_OUTPUT_TRANSFORM_270:
+ dest_rects[i].x1 = src_rects[i].y1;
+ dest_rects[i].y1 = width - src_rects[i].x2;
+ dest_rects[i].x2 = src_rects[i].y2;
+ dest_rects[i].y2 = width - src_rects[i].x1;
+ break;
+ case WL_OUTPUT_TRANSFORM_FLIPPED:
+ dest_rects[i].x1 = width - src_rects[i].x2;
+ dest_rects[i].y1 = src_rects[i].y1;
+ dest_rects[i].x2 = width - src_rects[i].x1;
+ dest_rects[i].y2 = src_rects[i].y2;
+ break;
+ case WL_OUTPUT_TRANSFORM_FLIPPED_90:
+ dest_rects[i].x1 = height - src_rects[i].y2;
+ dest_rects[i].y1 = width - src_rects[i].x2;
+ dest_rects[i].x2 = height - src_rects[i].y1;
+ dest_rects[i].y2 = width - src_rects[i].x1;
+ break;
+ case WL_OUTPUT_TRANSFORM_FLIPPED_180:
+ dest_rects[i].x1 = src_rects[i].x1;
+ dest_rects[i].y1 = height - src_rects[i].y2;
+ dest_rects[i].x2 = src_rects[i].x2;
+ dest_rects[i].y2 = height - src_rects[i].y1;
+ break;
+ case WL_OUTPUT_TRANSFORM_FLIPPED_270:
+ dest_rects[i].x1 = src_rects[i].y1;
+ dest_rects[i].y1 = src_rects[i].x1;
+ dest_rects[i].x2 = src_rects[i].y2;
+ dest_rects[i].y2 = src_rects[i].x2;
+ break;
+ }
+ }
+
+ if (scale != 1) {
+ for (i = 0; i < nrects; i++) {
+ dest_rects[i].x1 *= scale;
+ dest_rects[i].x2 *= scale;
+ dest_rects[i].y1 *= scale;
+ dest_rects[i].y2 *= scale;
+ }
}
pixman_region32_fini(buffer_region);
@@ -119,20 +197,26 @@ static void surface_commit(struct wl_client *client,
struct wl_resource *resource) {
struct wlr_surface *surface = wl_resource_get_user_data(resource);
surface->current.scale = surface->pending.scale;
+ surface->current.transform = surface->pending.transform;
if ((surface->pending.invalid & WLR_SURFACE_INVALID_BUFFER)) {
surface->current.buffer = surface->pending.buffer;
}
if ((surface->pending.invalid & WLR_SURFACE_INVALID_SURFACE_DAMAGE)) {
int width, height;
- wlr_texture_get_buffer_size(surface->texture, surface->current.buffer, &width, &height);
+ wlr_texture_get_buffer_size(surface->texture, surface->current.buffer,
+ &width, &height);
+
+ int surface_width, surface_height;
+ wlr_surface_get_effective_size(surface, width, height, &surface_width,
+ &surface_height);
pixman_region32_union(&surface->current.surface_damage,
&surface->current.surface_damage,
&surface->pending.surface_damage);
pixman_region32_intersect_rect(&surface->current.surface_damage,
- &surface->current.surface_damage, 0, 0, width /
- surface->current.scale, height / surface->current.scale);
+ &surface->current.surface_damage, 0, 0, surface_width,
+ surface_height);
pixman_region32_union(&surface->current.buffer_damage,
&surface->current.buffer_damage,
@@ -141,7 +225,7 @@ static void surface_commit(struct wl_client *client,
pixman_region32_t buffer_damage;
pixman_region32_init(&buffer_damage);
wlr_surface_to_buffer_region(surface, &surface->current.surface_damage,
- &buffer_damage);
+ &buffer_damage, surface_width, surface_height);
pixman_region32_union(&surface->current.buffer_damage,
&surface->current.buffer_damage, &buffer_damage);
@@ -203,7 +287,8 @@ release:
static void surface_set_buffer_transform(struct wl_client *client,
struct wl_resource *resource, int transform) {
- wlr_log(L_DEBUG, "TODO: surface surface buffer transform");
+ struct wlr_surface *surface = wl_resource_get_user_data(resource);
+ surface->pending.transform = transform;
}
static void surface_set_buffer_scale(struct wl_client *client,
@@ -260,6 +345,8 @@ struct wlr_surface *wlr_surface_create(struct wl_resource *res,
surface->resource = res;
surface->current.scale = 1;
surface->pending.scale = 1;
+ surface->current.transform = WL_OUTPUT_TRANSFORM_NORMAL;
+ surface->pending.transform = WL_OUTPUT_TRANSFORM_NORMAL;
wl_signal_init(&surface->signals.commit);
wl_list_init(&surface->frame_callback_list);
wl_resource_set_implementation(res, &surface_interface,
--
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