From 3ce2ea9e16fcd1bfab4ec9d5994fa721c5d58dcd Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Wed, 25 Aug 2021 09:33:19 +0200
Subject: Move allocator stuff into new directory

Add render/allocator/ and include/render/allocator/ to hold
everything allocator-related.
---
 render/shm_allocator.c | 116 -------------------------------------------------
 1 file changed, 116 deletions(-)
 delete mode 100644 render/shm_allocator.c

(limited to 'render/shm_allocator.c')

diff --git a/render/shm_allocator.c b/render/shm_allocator.c
deleted file mode 100644
index 1797433f..00000000
--- a/render/shm_allocator.c
+++ /dev/null
@@ -1,116 +0,0 @@
-#include <assert.h>
-#include <drm_fourcc.h>
-#include <stdlib.h>
-#include <sys/mman.h>
-#include <unistd.h>
-#include <wlr/util/log.h>
-#include "render/pixel_format.h"
-#include "render/shm_allocator.h"
-#include "util/shm.h"
-
-static const struct wlr_buffer_impl buffer_impl;
-
-static struct wlr_shm_buffer *shm_buffer_from_buffer(
-		struct wlr_buffer *wlr_buffer) {
-	assert(wlr_buffer->impl == &buffer_impl);
-	return (struct wlr_shm_buffer *)wlr_buffer;
-}
-
-static void buffer_destroy(struct wlr_buffer *wlr_buffer) {
-	struct wlr_shm_buffer *buffer = shm_buffer_from_buffer(wlr_buffer);
-	munmap(buffer->data, buffer->size);
-	close(buffer->shm.fd);
-	free(buffer);
-}
-
-static bool buffer_get_shm(struct wlr_buffer *wlr_buffer,
-		struct wlr_shm_attributes *shm) {
-	struct wlr_shm_buffer *buffer = shm_buffer_from_buffer(wlr_buffer);
-	memcpy(shm, &buffer->shm, sizeof(*shm));
-	return true;
-}
-
-static bool shm_buffer_begin_data_ptr_access(struct wlr_buffer *wlr_buffer,
-		void **data, uint32_t *format, size_t *stride) {
-	struct wlr_shm_buffer *buffer = shm_buffer_from_buffer(wlr_buffer);
-	*data = buffer->data;
-	*format = buffer->shm.format;
-	*stride = buffer->shm.stride;
-	return true;
-}
-
-static void shm_buffer_end_data_ptr_access(struct wlr_buffer *wlr_buffer) {
-	// This space is intentionally left blank
-}
-
-static const struct wlr_buffer_impl buffer_impl = {
-	.destroy = buffer_destroy,
-	.get_shm = buffer_get_shm,
-	.begin_data_ptr_access = shm_buffer_begin_data_ptr_access,
-	.end_data_ptr_access = shm_buffer_end_data_ptr_access,
-};
-
-static struct wlr_buffer *allocator_create_buffer(
-		struct wlr_allocator *wlr_allocator, int width, int height,
-		const struct wlr_drm_format *format) {
-	const struct wlr_pixel_format_info *info =
-		drm_get_pixel_format_info(format->format);
-	if (info == NULL) {
-		wlr_log(WLR_ERROR, "Unsupported pixel format 0x%"PRIX32, format->format);
-		return NULL;
-	}
-
-	struct wlr_shm_buffer *buffer = calloc(1, sizeof(*buffer));
-	if (buffer == NULL) {
-		return NULL;
-	}
-	wlr_buffer_init(&buffer->base, &buffer_impl, width, height);
-
-	// TODO: consider using a single file for multiple buffers
-	int bytes_per_pixel = info->bpp / 8;
-	int stride = width * bytes_per_pixel; // TODO: align?
-	buffer->size = stride * height;
-	buffer->shm.fd = allocate_shm_file(buffer->size);
-	if (buffer->shm.fd < 0) {
-		free(buffer);
-		return NULL;
-	}
-
-	buffer->shm.format = format->format;
-	buffer->shm.width = width;
-	buffer->shm.height = height;
-	buffer->shm.stride = stride;
-	buffer->shm.offset = 0;
-
-	buffer->data = mmap(NULL, buffer->size, PROT_READ | PROT_WRITE, MAP_SHARED,
-		buffer->shm.fd, 0);
-	if (buffer->data == MAP_FAILED) {
-		wlr_log_errno(WLR_ERROR, "mmap failed");
-		close(buffer->shm.fd);
-		free(buffer);
-		return NULL;
-	}
-
-	return &buffer->base;
-}
-
-static void allocator_destroy(struct wlr_allocator *wlr_allocator) {
-	free(wlr_allocator);
-}
-
-static const struct wlr_allocator_interface allocator_impl = {
-	.destroy = allocator_destroy,
-	.create_buffer = allocator_create_buffer,
-};
-
-struct wlr_allocator *wlr_shm_allocator_create(void) {
-	struct wlr_shm_allocator *allocator = calloc(1, sizeof(*allocator));
-	if (allocator == NULL) {
-		return NULL;
-	}
-	wlr_allocator_init(&allocator->base, &allocator_impl,
-		WLR_BUFFER_CAP_DATA_PTR | WLR_BUFFER_CAP_SHM);
-
-	wlr_log(WLR_DEBUG, "Created shm allocator");
-	return &allocator->base;
-}
-- 
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