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path: root/src/gallium/frontends/nine/nine_buffer_upload.c
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Diffstat (limited to 'src/gallium/frontends/nine/nine_buffer_upload.c')
-rw-r--r--src/gallium/frontends/nine/nine_buffer_upload.c284
1 files changed, 0 insertions, 284 deletions
diff --git a/src/gallium/frontends/nine/nine_buffer_upload.c b/src/gallium/frontends/nine/nine_buffer_upload.c
deleted file mode 100644
index ff624a1ba0b..00000000000
--- a/src/gallium/frontends/nine/nine_buffer_upload.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- *
- * Copyright 2009 VMware, Inc.
- * Copyright 2016 Axel Davy <axel.davy@ens.fr>
- * All Rights Reserved.
- *
- * SPDX-License-Identifier: MIT
- */
-
-/* Adapted from u_upload_mgr.
- * Makes suballocations from bigger allocations,
- * while enabling fast mapping. */
-
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "pipe/p_context.h"
-#include "util/u_memory.h"
-#include "util/u_math.h"
-#include "util/slab.h"
-
-#include "nine_buffer_upload.h"
-
-#include "nine_debug.h"
-
-#define DBG_CHANNEL (DBG_INDEXBUFFER|DBG_VERTEXBUFFER)
-
-struct nine_buffer_group {
- unsigned refcount; /* How many sub-buffers live inside the buffer */
- struct pipe_resource *resource;
- struct pipe_transfer *transfer;
- uint8_t *map;
- unsigned free_offset; /* Aligned offset to the upload buffer, pointing
- * at the first unused byte. */
-};
-
-struct nine_subbuffer {
- struct nine_buffer_group *parent; /* Can be NULL */
- struct pipe_resource *resource; /* The parent resource if apply */
- unsigned offset; /* Offset inside the resource */
- /* If there is no parent, the resource map. Else NULL. */
- struct pipe_transfer *transfer;
- uint8_t *map;
-};
-
-struct nine_buffer_upload {
- struct pipe_context *pipe;
- struct slab_mempool buffer_pool;
-
- unsigned buffers_size; /* Size of the big allocated buffers */
- unsigned num_buffers;
- struct nine_buffer_group *buffers;
-};
-
-static void
-nine_upload_create_buffer_group(struct nine_buffer_upload *upload,
- struct nine_buffer_group *group)
-{
- struct pipe_resource resource;
- struct pipe_screen *screen = upload->pipe->screen;
- DBG("Allocating %p %p\n", upload, group);
-
- memset(&resource, 0, sizeof(resource));
- resource.target = PIPE_BUFFER;
- resource.format = PIPE_FORMAT_R8_UNORM;
- resource.bind = PIPE_BIND_VERTEX_BUFFER;
- resource.usage = PIPE_USAGE_STREAM;
- resource.width0 = upload->buffers_size;
- resource.height0 = 1;
- resource.depth0 = 1;
- resource.array_size = 1;
- resource.flags = PIPE_RESOURCE_FLAG_MAP_PERSISTENT |
- PIPE_RESOURCE_FLAG_MAP_COHERENT;
-
- group->refcount = 0;
- group->resource = screen->resource_create(screen, &resource);
- if (group->resource == NULL)
- return;
-
- group->map = pipe_buffer_map_range(upload->pipe, group->resource,
- 0, upload->buffers_size,
- PIPE_MAP_WRITE |
-#if DETECT_ARCH_X86
- PIPE_MAP_ONCE |
-#endif
- PIPE_MAP_PERSISTENT |
- PIPE_MAP_COHERENT,
- &group->transfer);
- if (group->map == NULL) {
- group->transfer = NULL;
- pipe_resource_reference(&group->resource, NULL);
- return;
- }
-
- group->free_offset = 0;
- DBG("Success: %p %p\n", group->map, group->map+upload->buffers_size);
-}
-
-static void
-nine_upload_destroy_buffer_group(struct nine_buffer_upload *upload,
- struct nine_buffer_group *group)
-{
- DBG("%p %p\n", upload, group);
- DBG("Release: %p %p\n", group->map, group->map+upload->buffers_size);
- assert(group->refcount == 0);
-
- if (group->transfer)
- pipe_buffer_unmap(upload->pipe, group->transfer);
- if (group->resource)
- pipe_resource_reference(&group->resource, NULL);
- group->transfer = NULL;
- group->map = NULL;
-}
-
-struct nine_buffer_upload *
-nine_upload_create(struct pipe_context *pipe, unsigned buffers_size,
- unsigned num_buffers)
-{
- struct nine_buffer_upload *upload;
- int i;
-
- DBG("\n");
-
- if (!pipe->screen->caps.buffer_map_persistent_coherent)
- return NULL;
-
- upload = CALLOC_STRUCT(nine_buffer_upload);
-
- if (!upload)
- return NULL;
-
- slab_create(&upload->buffer_pool, sizeof(struct nine_subbuffer), 4096);
-
- upload->pipe = pipe;
- upload->buffers_size = align(buffers_size, 4096);
- upload->num_buffers = num_buffers;
-
- upload->buffers = CALLOC(num_buffers, sizeof(struct nine_buffer_group));
- if (!upload->buffers)
- goto buffers_fail;
-
- for (i = 0; i < num_buffers; i++)
- nine_upload_create_buffer_group(upload, &upload->buffers[i]);
-
- return upload;
-
-buffers_fail:
- slab_destroy(&upload->buffer_pool);
- FREE(upload);
- return NULL;
-}
-
-void
-nine_upload_destroy(struct nine_buffer_upload *upload)
-{
- int i;
-
- DBG("%p\n", upload);
-
- for (i = 0; i < upload->num_buffers; i++)
- nine_upload_destroy_buffer_group(upload, &upload->buffers[i]);
- slab_destroy(&upload->buffer_pool);
- FREE(upload);
-}
-
-struct nine_subbuffer *
-nine_upload_create_buffer(struct nine_buffer_upload *upload,
- unsigned buffer_size)
-{
- struct nine_subbuffer *buf = slab_alloc_st(&upload->buffer_pool);
- struct nine_buffer_group *group = NULL;
- unsigned size = align(buffer_size, 4096);
- int i = 0;
-
- DBG("%p %d\n", upload, buffer_size);
-
- if (!buf)
- return NULL;
-
- for (i = 0; i < upload->num_buffers; i++) {
- group = &upload->buffers[i];
- if (group->resource &&
- group->free_offset + size <= upload->buffers_size)
- break;
- }
-
- if (i == upload->num_buffers) {
- /* Allocate lonely buffer */
- struct pipe_resource resource;
- struct pipe_screen *screen = upload->pipe->screen;
-
- DBG("Allocating buffer\n");
- buf->parent = NULL;
-
- memset(&resource, 0, sizeof(resource));
- resource.target = PIPE_BUFFER;
- resource.format = PIPE_FORMAT_R8_UNORM;
- resource.bind = PIPE_BIND_VERTEX_BUFFER;
- resource.usage = PIPE_USAGE_STREAM;
- resource.width0 = buffer_size;
- resource.height0 = 1;
- resource.depth0 = 1;
- resource.array_size = 1;
- resource.flags = PIPE_RESOURCE_FLAG_MAP_PERSISTENT |
- PIPE_RESOURCE_FLAG_MAP_COHERENT;
-
- buf->resource = screen->resource_create(screen, &resource);
- if (buf->resource == NULL) {
- slab_free_st(&upload->buffer_pool, buf);
- return NULL;
- }
-
- buf->map = pipe_buffer_map_range(upload->pipe, buf->resource,
- 0, buffer_size,
- PIPE_MAP_WRITE |
-#if DETECT_ARCH_X86
- PIPE_MAP_ONCE |
-#endif
- PIPE_MAP_PERSISTENT |
- PIPE_MAP_COHERENT,
- &buf->transfer);
- if (buf->map == NULL) {
- pipe_resource_reference(&buf->resource, NULL);
- slab_free_st(&upload->buffer_pool, buf);
- return NULL;
- }
- buf->offset = 0;
- return buf;
- }
-
- DBG("Using buffer group %d\n", i);
-
- buf->parent = group;
- buf->resource = NULL;
- pipe_resource_reference(&buf->resource, group->resource);
- buf->offset = group->free_offset;
-
- group->free_offset += size;
- group->refcount += 1;
-
- return buf;
-}
-
-void
-nine_upload_release_buffer(struct nine_buffer_upload *upload,
- struct nine_subbuffer *buf)
-{
- DBG("%p %p %p\n", upload, buf, buf->parent);
-
- if (buf->parent) {
- pipe_resource_reference(&buf->resource, NULL);
- buf->parent->refcount--;
- if (buf->parent->refcount == 0) {
- /* Allocate new buffer */
- nine_upload_destroy_buffer_group(upload, buf->parent);
- nine_upload_create_buffer_group(upload, buf->parent);
- }
- } else {
- /* lonely buffer */
- if (buf->transfer)
- pipe_buffer_unmap(upload->pipe, buf->transfer);
- pipe_resource_reference(&buf->resource, NULL);
- }
-
- slab_free_st(&upload->buffer_pool, buf);
-}
-
-uint8_t *
-nine_upload_buffer_get_map(struct nine_subbuffer *buf)
-{
- if (buf->parent) {
- DBG("%d\n", buf->parent->refcount);
- return buf->parent->map + buf->offset;
- }
- /* lonely buffer */
- return buf->map;
-}
-
-struct pipe_resource *
-nine_upload_buffer_resource_and_offset(struct nine_subbuffer *buf,
- unsigned *offset)
-{
- *offset = buf->offset;
- return buf->resource;
-}
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