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output: add wlr_output_init_render

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Co-authored-by: Simon Zeni <simon@bl4ckb0ne.ca>
This commit is contained in:
Simon Ser 2021-11-05 12:26:38 +01:00 committed by Simon Zeni
parent b5d4bc3c62
commit 142d10e591
3 changed files with 55 additions and 29 deletions
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14
include/wlr/types/wlr_output.h
View file

@ -182,6 +182,8 @@ struct wlr_output {
struct wlr_buffer *cursor_front_buffer;
int software_cursor_locks; // number of locks forcing software cursors
struct wlr_allocator *allocator;
struct wlr_renderer *renderer;
struct wlr_swapchain *swapchain;
struct wlr_buffer *back_buffer, *front_buffer;
@ -256,6 +258,18 @@ struct wlr_surface;
void wlr_output_enable(struct wlr_output *output, bool enable);
void wlr_output_create_global(struct wlr_output *output);
void wlr_output_destroy_global(struct wlr_output *output);
/**
* Initialize the output's rendering subsystem with the provided allocator and
* renderer. Can only be called once.
*
* Call this function prior to any call to wlr_output_attach_render,
* wlr_output_commit or wlr_output_cursor_create.
*
* The buffer capabilities of the provided must match the capabilities of the
* output's backend. Returns false otherwise.
*/
bool wlr_output_init_render(struct wlr_output *output,
struct wlr_allocator *allocator, struct wlr_renderer *renderer);
/**
* Returns the preferred mode for this output. If the output doesn't support
* modes, returns NULL.

25
types/output/cursor.c
View file

@ -6,7 +6,6 @@
#include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_surface.h>
#include <wlr/util/log.h>
#include "backend/backend.h"
#include "render/allocator/allocator.h"
#include "render/swapchain.h"
#include "types/wlr_output.h"
@ -38,7 +37,7 @@ void wlr_output_lock_software_cursors(struct wlr_output *output, bool lock) {
}
static void output_scissor(struct wlr_output *output, pixman_box32_t *rect) {
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
struct wlr_renderer *renderer = output->renderer;
assert(renderer);
struct wlr_box box = {
@ -71,8 +70,7 @@ static void output_cursor_get_box(struct wlr_output_cursor *cursor,
static void output_cursor_render(struct wlr_output_cursor *cursor,
pixman_region32_t *damage) {
struct wlr_renderer *renderer =
wlr_backend_get_renderer(cursor->output->backend);
struct wlr_renderer *renderer = cursor->output->renderer;
assert(renderer);
struct wlr_texture *texture = cursor->texture;
@ -195,7 +193,7 @@ static void output_cursor_update_visible(struct wlr_output_cursor *cursor) {
}
static struct wlr_drm_format *output_pick_cursor_format(struct wlr_output *output) {
struct wlr_allocator *allocator = backend_get_allocator(output->backend);
struct wlr_allocator *allocator = output->allocator;
assert(allocator != NULL);
const struct wlr_drm_format_set *display_formats = NULL;
@ -226,17 +224,9 @@ static struct wlr_buffer *render_cursor_buffer(struct wlr_output_cursor *cursor)
return NULL;
}
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
if (renderer == NULL) {
wlr_log(WLR_ERROR, "Failed to get backend renderer");
return NULL;
}
struct wlr_allocator *allocator = backend_get_allocator(output->backend);
if (allocator == NULL) {
wlr_log(WLR_ERROR, "Failed to get backend allocator");
return NULL;
}
struct wlr_allocator *allocator = output->allocator;
struct wlr_renderer *renderer = output->renderer;
assert(allocator != NULL && renderer != NULL);
int width = texture->width;
int height = texture->height;
@ -370,8 +360,7 @@ static bool output_cursor_attempt_hardware(struct wlr_output_cursor *cursor) {
bool wlr_output_cursor_set_image(struct wlr_output_cursor *cursor,
const uint8_t *pixels, int32_t stride, uint32_t width, uint32_t height,
int32_t hotspot_x, int32_t hotspot_y) {
struct wlr_renderer *renderer =
wlr_backend_get_renderer(cursor->output->backend);
struct wlr_renderer *renderer = cursor->output->renderer;
if (!renderer) {
// if the backend has no renderer, we can't draw a cursor, but this is
// actually okay, for ex. with the noop backend

45
types/output/render.c
View file

@ -11,6 +11,30 @@
#include "render/wlr_renderer.h"
#include "types/wlr_output.h"
bool wlr_output_init_render(struct wlr_output *output,
struct wlr_allocator *allocator, struct wlr_renderer *renderer) {
assert(output->allocator == NULL && allocator != NULL);
assert(output->renderer == NULL && renderer != NULL);
uint32_t backend_caps = backend_get_buffer_caps(output->backend);
uint32_t renderer_caps = renderer_get_render_buffer_caps(renderer);
if (!(backend_caps & allocator->buffer_caps)) {
wlr_log(WLR_ERROR, "output backend and allocator buffer capabilities "
"don't match");
return false;
} else if (!(backend_caps & renderer_caps)) {
wlr_log(WLR_ERROR, "output backend and renderer buffer capabilities "
"don't match");
return false;
}
output->allocator = allocator;
output->renderer = renderer;
return true;
}
/**
* Ensure the output has a suitable swapchain. The swapchain is re-created if
* necessary.
@ -29,11 +53,8 @@ static bool output_create_swapchain(struct wlr_output *output,
return true;
}
struct wlr_allocator *allocator = backend_get_allocator(output->backend);
if (allocator == NULL) {
wlr_log(WLR_ERROR, "Failed to get backend allocator");
return false;
}
struct wlr_allocator *allocator = output->allocator;
assert(allocator != NULL);
const struct wlr_drm_format_set *display_formats = NULL;
if (output->impl->get_primary_formats) {
@ -80,7 +101,7 @@ static bool output_attach_back_buffer(struct wlr_output *output,
return false;
}
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
struct wlr_renderer *renderer = output->renderer;
assert(renderer != NULL);
struct wlr_buffer *buffer =
@ -103,7 +124,7 @@ void output_clear_back_buffer(struct wlr_output *output) {
return;
}
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
struct wlr_renderer *renderer = output->renderer;
assert(renderer != NULL);
renderer_bind_buffer(renderer, NULL);
@ -130,7 +151,7 @@ static bool output_attach_empty_buffer(struct wlr_output *output) {
int width, height;
output_pending_resolution(output, &width, &height);
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
struct wlr_renderer *renderer = output->renderer;
wlr_renderer_begin(renderer, width, height);
wlr_renderer_clear(renderer, (float[]){0, 0, 0, 0});
wlr_renderer_end(renderer);
@ -211,8 +232,8 @@ void wlr_output_lock_attach_render(struct wlr_output *output, bool lock) {
struct wlr_drm_format *output_pick_format(struct wlr_output *output,
const struct wlr_drm_format_set *display_formats) {
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
struct wlr_allocator *allocator = backend_get_allocator(output->backend);
struct wlr_renderer *renderer = output->renderer;
struct wlr_allocator *allocator = output->allocator;
assert(renderer != NULL && allocator != NULL);
const struct wlr_drm_format_set *render_formats =
@ -264,7 +285,9 @@ struct wlr_drm_format *output_pick_format(struct wlr_output *output,
}
uint32_t wlr_output_preferred_read_format(struct wlr_output *output) {
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
struct wlr_renderer *renderer = output->renderer;
assert(renderer != NULL);
if (!renderer->impl->preferred_read_format || !renderer->impl->read_pixels) {
return DRM_FORMAT_INVALID;
}