NeroReflex/mesa
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
mesa/src/mesa/drivers/dri/intel/intel_buffer_objects.c
Chris Wilson c625aa19cb intel: extend current vertex buffers 
If the next vertex arrays are a (discontiguous) continuation of the
current arrays, such that the new vertices are simply offset from the
start of the current vertex buffer definitions we can reuse those
defintions and avoid the overhead of relocations and invalidations.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-21 12:59:36 +00:00

924 lines
28 KiB
C
Raw Blame History

/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
#include "main/imports.h"
#include "main/mfeatures.h"
#include "main/mtypes.h"
#include "main/macros.h"
#include "main/bufferobj.h"
#include "intel_blit.h"
#include "intel_buffer_objects.h"
#include "intel_batchbuffer.h"
#include "intel_context.h"
#include "intel_fbo.h"
#include "intel_mipmap_tree.h"
#include "intel_regions.h"
static GLboolean
intel_bufferobj_unmap(struct gl_context * ctx,
GLenum target, struct gl_buffer_object *obj);
/** Allocates a new drm_intel_bo to store the data for the buffer object. */
static void
intel_bufferobj_alloc_buffer(struct intel_context *intel,
struct intel_buffer_object *intel_obj)
{
intel_obj->buffer = drm_intel_bo_alloc(intel->bufmgr, "bufferobj",
intel_obj->Base.Size, 64);
}
/**
* There is some duplication between mesa's bufferobjects and our
* bufmgr buffers. Both have an integer handle and a hashtable to
* lookup an opaque structure. It would be nice if the handles and
* internal structure where somehow shared.
*/
static struct gl_buffer_object *
intel_bufferobj_alloc(struct gl_context * ctx, GLuint name, GLenum target)
{
struct intel_buffer_object *obj = CALLOC_STRUCT(intel_buffer_object);
_mesa_initialize_buffer_object(&obj->Base, name, target);
obj->buffer = NULL;
return &obj->Base;
}
/* Break the COW tie to the region. The region gets to keep the data.
*/
void
intel_bufferobj_release_region(struct intel_context *intel,
struct intel_buffer_object *intel_obj)
{
assert(intel_obj->region->buffer == intel_obj->buffer);
intel_obj->region->pbo = NULL;
intel_obj->region = NULL;
drm_intel_bo_unreference(intel_obj->buffer);
intel_obj->buffer = NULL;
}
/* Break the COW tie to the region. Both the pbo and the region end
* up with a copy of the data.
*/
void
intel_bufferobj_cow(struct intel_context *intel,
struct intel_buffer_object *intel_obj)
{
assert(intel_obj->region);
intel_region_cow(intel, intel_obj->region);
}
/**
* Deallocate/free a vertex/pixel buffer object.
* Called via glDeleteBuffersARB().
*/
static void
intel_bufferobj_free(struct gl_context * ctx, struct gl_buffer_object *obj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
assert(intel_obj);
/* Buffer objects are automatically unmapped when deleting according
* to the spec, but Mesa doesn't do UnmapBuffer for us at context destroy
* (though it does if you call glDeleteBuffers)
*/
if (obj->Pointer)
intel_bufferobj_unmap(ctx, 0, obj);
free(intel_obj->sys_buffer);
if (intel_obj->region) {
intel_bufferobj_release_region(intel, intel_obj);
}
drm_intel_bo_unreference(intel_obj->buffer);
free(intel_obj);
}
/**
* Allocate space for and store data in a buffer object. Any data that was
* previously stored in the buffer object is lost. If data is NULL,
* memory will be allocated, but no copy will occur.
* Called via ctx->Driver.BufferData().
* \return GL_TRUE for success, GL_FALSE if out of memory
*/
static GLboolean
intel_bufferobj_data(struct gl_context * ctx,
GLenum target,
GLsizeiptrARB size,
const GLvoid * data,
GLenum usage, struct gl_buffer_object *obj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
intel_obj->Base.Size = size;
intel_obj->Base.Usage = usage;
assert(!obj->Pointer); /* Mesa should have unmapped it */
if (intel_obj->region)
intel_bufferobj_release_region(intel, intel_obj);
if (intel_obj->buffer != NULL) {
drm_intel_bo_unreference(intel_obj->buffer);
intel_obj->buffer = NULL;
intel_obj->source = 0;
}
free(intel_obj->sys_buffer);
intel_obj->sys_buffer = NULL;
if (size != 0) {
if (usage == GL_DYNAMIC_DRAW
#ifdef I915
/* On pre-965, stick VBOs in system memory, as we're always doing
* swtnl with their contents anyway.
*/
|| target == GL_ARRAY_BUFFER || target == GL_ELEMENT_ARRAY_BUFFER
#endif
)
{
intel_obj->sys_buffer = malloc(size);
if (intel_obj->sys_buffer != NULL) {
if (data != NULL)
memcpy(intel_obj->sys_buffer, data, size);
return GL_TRUE;
}
}
intel_bufferobj_alloc_buffer(intel, intel_obj);
if (!intel_obj->buffer)
return GL_FALSE;
if (data != NULL)
drm_intel_bo_subdata(intel_obj->buffer, 0, size, data);
}
return GL_TRUE;
}
/**
* Replace data in a subrange of buffer object. If the data range
* specified by size + offset extends beyond the end of the buffer or
* if data is NULL, no copy is performed.
* Called via glBufferSubDataARB().
*/
static void
intel_bufferobj_subdata(struct gl_context * ctx,
GLenum target,
GLintptrARB offset,
GLsizeiptrARB size,
const GLvoid * data, struct gl_buffer_object *obj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
if (size == 0)
return;
assert(intel_obj);
if (intel_obj->region)
intel_bufferobj_cow(intel, intel_obj);
if (intel_obj->sys_buffer) {
if (intel_obj->buffer) {
drm_intel_bo_unreference(intel_obj->buffer);
intel_obj->buffer = NULL;
intel_obj->source = 0;
}
memcpy((char *)intel_obj->sys_buffer + offset, data, size);
} else {
bool busy =
drm_intel_bo_busy(intel_obj->buffer) ||
drm_intel_bo_references(intel->batch.bo, intel_obj->buffer);
/* replace the current busy bo with fresh data */
if (busy && size == intel_obj->Base.Size) {
drm_intel_bo_unreference(intel_obj->buffer);
intel_bufferobj_alloc_buffer(intel, intel_obj);
drm_intel_bo_subdata(intel_obj->buffer, 0, size, data);
} else if (intel->gen < 6) {
if (busy) {
drm_intel_bo *temp_bo;
temp_bo = drm_intel_bo_alloc(intel->bufmgr, "subdata temp", size, 64);
drm_intel_bo_subdata(temp_bo, 0, size, data);
intel_emit_linear_blit(intel,
intel_obj->buffer, offset,
temp_bo, 0,
size);
drm_intel_bo_unreference(temp_bo);
} else {
drm_intel_bo_subdata(intel_obj->buffer, offset, size, data);
}
} else {
/* Can't use the blit to modify the buffer in the middle of batch. */
if (drm_intel_bo_references(intel->batch.bo, intel_obj->buffer)) {
intel_batchbuffer_flush(intel);
}
drm_intel_bo_subdata(intel_obj->buffer, offset, size, data);
}
}
}
/**
* Called via glGetBufferSubDataARB().
*/
static void
intel_bufferobj_get_subdata(struct gl_context * ctx,
GLenum target,
GLintptrARB offset,
GLsizeiptrARB size,
GLvoid * data, struct gl_buffer_object *obj)
{
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
assert(intel_obj);
if (intel_obj->sys_buffer)
memcpy(data, (char *)intel_obj->sys_buffer + offset, size);
else
drm_intel_bo_get_subdata(intel_obj->buffer, offset, size, data);
}
/**
* Called via glMapBufferARB().
*/
static void *
intel_bufferobj_map(struct gl_context * ctx,
GLenum target,
GLenum access, struct gl_buffer_object *obj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
GLboolean read_only = (access == GL_READ_ONLY_ARB);
GLboolean write_only = (access == GL_WRITE_ONLY_ARB);
assert(intel_obj);
if (intel_obj->sys_buffer) {
if (!read_only && intel_obj->buffer) {
drm_intel_bo_unreference(intel_obj->buffer);
intel_obj->buffer = NULL;
intel_obj->source = 0;
}
obj->Pointer = intel_obj->sys_buffer;
obj->Length = obj->Size;
obj->Offset = 0;
return obj->Pointer;
}
/* Flush any existing batchbuffer that might reference this data. */
if (drm_intel_bo_references(intel->batch.bo, intel_obj->buffer))
intel_flush(ctx);
if (intel_obj->region)
intel_bufferobj_cow(intel, intel_obj);
if (intel_obj->buffer == NULL) {
obj->Pointer = NULL;
return NULL;
}
if (write_only) {
drm_intel_gem_bo_map_gtt(intel_obj->buffer);
intel_obj->mapped_gtt = GL_TRUE;
} else {
drm_intel_bo_map(intel_obj->buffer, !read_only);
intel_obj->mapped_gtt = GL_FALSE;
}
obj->Pointer = intel_obj->buffer->virtual;
obj->Length = obj->Size;
obj->Offset = 0;
return obj->Pointer;
}
/**
* Called via glMapBufferRange().
*
* The goal of this extension is to allow apps to accumulate their rendering
* at the same time as they accumulate their buffer object. Without it,
* you'd end up blocking on execution of rendering every time you mapped
* the buffer to put new data in.
*
* We support it in 3 ways: If unsynchronized, then don't bother
* flushing the batchbuffer before mapping the buffer, which can save blocking
* in many cases. If we would still block, and they allow the whole buffer
* to be invalidated, then just allocate a new buffer to replace the old one.
* If not, and we'd block, and they allow the subrange of the buffer to be
* invalidated, then we can make a new little BO, let them write into that,
* and blit it into the real BO at unmap time.
*/
static void *
intel_bufferobj_map_range(struct gl_context * ctx,
GLenum target, GLintptr offset, GLsizeiptr length,
GLbitfield access, struct gl_buffer_object *obj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
assert(intel_obj);
/* _mesa_MapBufferRange (GL entrypoint) sets these, but the vbo module also
* internally uses our functions directly.
*/
obj->Offset = offset;
obj->Length = length;
obj->AccessFlags = access;
if (intel_obj->sys_buffer) {
if (access != GL_READ_ONLY_ARB && intel_obj->buffer) {
drm_intel_bo_unreference(intel_obj->buffer);
intel_obj->buffer = NULL;
intel_obj->source = 0;
}
obj->Pointer = intel_obj->sys_buffer + offset;
return obj->Pointer;
}
if (intel_obj->region)
intel_bufferobj_cow(intel, intel_obj);
/* If the mapping is synchronized with other GL operations, flush
* the batchbuffer so that GEM knows about the buffer access for later
* syncing.
*/
if (!(access & GL_MAP_UNSYNCHRONIZED_BIT) &&
drm_intel_bo_references(intel->batch.bo, intel_obj->buffer))
intel_flush(ctx);
if (intel_obj->buffer == NULL) {
obj->Pointer = NULL;
return NULL;
}
/* If the user doesn't care about existing buffer contents and mapping
* would cause us to block, then throw out the old buffer.
*/
if (!(access & GL_MAP_UNSYNCHRONIZED_BIT) &&
(access & GL_MAP_INVALIDATE_BUFFER_BIT) &&
drm_intel_bo_busy(intel_obj->buffer)) {
drm_intel_bo_unreference(intel_obj->buffer);
intel_bufferobj_alloc_buffer(intel, intel_obj);
}
/* If the user is mapping a range of an active buffer object but
* doesn't require the current contents of that range, make a new
* BO, and we'll copy what they put in there out at unmap or
* FlushRange time.
*/
if ((access & GL_MAP_INVALIDATE_RANGE_BIT) &&
drm_intel_bo_busy(intel_obj->buffer)) {
if (access & GL_MAP_FLUSH_EXPLICIT_BIT) {
intel_obj->range_map_buffer = malloc(length);
obj->Pointer = intel_obj->range_map_buffer;
} else {
intel_obj->range_map_bo = drm_intel_bo_alloc(intel->bufmgr,
"range map",
length, 64);
if (!(access & GL_MAP_READ_BIT)) {
drm_intel_gem_bo_map_gtt(intel_obj->range_map_bo);
intel_obj->mapped_gtt = GL_TRUE;
} else {
drm_intel_bo_map(intel_obj->range_map_bo,
(access & GL_MAP_WRITE_BIT) != 0);
intel_obj->mapped_gtt = GL_FALSE;
}
obj->Pointer = intel_obj->range_map_bo->virtual;
}
return obj->Pointer;
}
if (!(access & GL_MAP_READ_BIT)) {
drm_intel_gem_bo_map_gtt(intel_obj->buffer);
intel_obj->mapped_gtt = GL_TRUE;
} else {
drm_intel_bo_map(intel_obj->buffer, (access & GL_MAP_WRITE_BIT) != 0);
intel_obj->mapped_gtt = GL_FALSE;
}
obj->Pointer = intel_obj->buffer->virtual + offset;
return obj->Pointer;
}
/* Ideally we'd use a BO to avoid taking up cache space for the temporary
* data, but FlushMappedBufferRange may be followed by further writes to
* the pointer, so we would have to re-map after emitting our blit, which
* would defeat the point.
*/
static void
intel_bufferobj_flush_mapped_range(struct gl_context *ctx, GLenum target,
GLintptr offset, GLsizeiptr length,
struct gl_buffer_object *obj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
drm_intel_bo *temp_bo;
/* Unless we're in the range map using a temporary system buffer,
* there's no work to do.
*/
if (intel_obj->range_map_buffer == NULL)
return;
if (length == 0)
return;
temp_bo = drm_intel_bo_alloc(intel->bufmgr, "range map flush", length, 64);
drm_intel_bo_subdata(temp_bo, 0, length, intel_obj->range_map_buffer);
intel_emit_linear_blit(intel,
intel_obj->buffer, obj->Offset + offset,
temp_bo, 0,
length);
drm_intel_bo_unreference(temp_bo);
}
/**
* Called via glUnmapBuffer().
*/
static GLboolean
intel_bufferobj_unmap(struct gl_context * ctx,
GLenum target, struct gl_buffer_object *obj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
assert(intel_obj);
assert(obj->Pointer);
if (intel_obj->sys_buffer != NULL) {
/* always keep the mapping around. */
} else if (intel_obj->range_map_buffer != NULL) {
/* Since we've emitted some blits to buffers that will (likely) be used
* in rendering operations in other cache domains in this batch, emit a
* flush. Once again, we wish for a domain tracker in libdrm to cover
* usage inside of a batchbuffer.
*/
intel_batchbuffer_emit_mi_flush(intel);
free(intel_obj->range_map_buffer);
intel_obj->range_map_buffer = NULL;
} else if (intel_obj->range_map_bo != NULL) {
if (intel_obj->mapped_gtt) {
drm_intel_gem_bo_unmap_gtt(intel_obj->range_map_bo);
} else {
drm_intel_bo_unmap(intel_obj->range_map_bo);
}
intel_emit_linear_blit(intel,
intel_obj->buffer, obj->Offset,
intel_obj->range_map_bo, 0,
obj->Length);
/* Since we've emitted some blits to buffers that will (likely) be used
* in rendering operations in other cache domains in this batch, emit a
* flush. Once again, we wish for a domain tracker in libdrm to cover
* usage inside of a batchbuffer.
*/
intel_batchbuffer_emit_mi_flush(intel);
drm_intel_bo_unreference(intel_obj->range_map_bo);
intel_obj->range_map_bo = NULL;
} else if (intel_obj->buffer != NULL) {
if (intel_obj->mapped_gtt) {
drm_intel_gem_bo_unmap_gtt(intel_obj->buffer);
} else {
drm_intel_bo_unmap(intel_obj->buffer);
}
}
obj->Pointer = NULL;
obj->Offset = 0;
obj->Length = 0;
return GL_TRUE;
}
drm_intel_bo *
intel_bufferobj_buffer(struct intel_context *intel,
struct intel_buffer_object *intel_obj,
GLuint flag)
{
if (intel_obj->region) {
if (flag == INTEL_WRITE_PART)
intel_bufferobj_cow(intel, intel_obj);
else if (flag == INTEL_WRITE_FULL) {
intel_bufferobj_release_region(intel, intel_obj);
intel_bufferobj_alloc_buffer(intel, intel_obj);
}
}
if (intel_obj->source) {
drm_intel_bo_unreference(intel_obj->buffer);
intel_obj->buffer = NULL;
intel_obj->source = 0;
}
if (intel_obj->buffer == NULL) {
intel_bufferobj_alloc_buffer(intel, intel_obj);
drm_intel_bo_subdata(intel_obj->buffer,
0, intel_obj->Base.Size,
intel_obj->sys_buffer);
free(intel_obj->sys_buffer);
intel_obj->sys_buffer = NULL;
intel_obj->offset = 0;
}
return intel_obj->buffer;
}
#define INTEL_UPLOAD_SIZE (64*1024)
void
intel_upload_finish(struct intel_context *intel)
{
if (!intel->upload.bo)
return;
if (intel->upload.buffer_len) {
drm_intel_bo_subdata(intel->upload.bo,
intel->upload.buffer_offset,
intel->upload.buffer_len,
intel->upload.buffer);
intel->upload.buffer_len = 0;
}
drm_intel_bo_unreference(intel->upload.bo);
intel->upload.bo = NULL;
}
static void wrap_buffers(struct intel_context *intel, GLuint size)
{
intel_upload_finish(intel);
if (size < INTEL_UPLOAD_SIZE)
size = INTEL_UPLOAD_SIZE;
intel->upload.bo = drm_intel_bo_alloc(intel->bufmgr, "upload", size, 0);
intel->upload.offset = 0;
}
void intel_upload_data(struct intel_context *intel,
const void *ptr, GLuint size, GLuint align,
drm_intel_bo **return_bo,
GLuint *return_offset)
{
GLuint base, delta;
base = (intel->upload.offset + align - 1) / align * align;
if (intel->upload.bo == NULL || base + size > intel->upload.bo->size) {
wrap_buffers(intel, size);
base = 0;
}
drm_intel_bo_reference(intel->upload.bo);
*return_bo = intel->upload.bo;
*return_offset = base;
delta = base - intel->upload.offset;
if (intel->upload.buffer_len &&
intel->upload.buffer_len + delta + size > sizeof(intel->upload.buffer))
{
drm_intel_bo_subdata(intel->upload.bo,
intel->upload.buffer_offset,
intel->upload.buffer_len,
intel->upload.buffer);
intel->upload.buffer_len = 0;
}
if (size < sizeof(intel->upload.buffer))
{
if (intel->upload.buffer_len == 0)
intel->upload.buffer_offset = base;
else
intel->upload.buffer_len += delta;
memcpy(intel->upload.buffer + intel->upload.buffer_len, ptr, size);
intel->upload.buffer_len += size;
}
else
{
drm_intel_bo_subdata(intel->upload.bo, base, size, ptr);
}
intel->upload.offset = base + size;
}
void *intel_upload_map(struct intel_context *intel, GLuint size, GLuint align)
{
GLuint base, delta;
char *ptr;
base = (intel->upload.offset + align - 1) / align * align;
if (intel->upload.bo == NULL || base + size > intel->upload.bo->size) {
wrap_buffers(intel, size);
base = 0;
}
delta = base - intel->upload.offset;
if (intel->upload.buffer_len &&
intel->upload.buffer_len + delta + size > sizeof(intel->upload.buffer))
{
drm_intel_bo_subdata(intel->upload.bo,
intel->upload.buffer_offset,
intel->upload.buffer_len,
intel->upload.buffer);
intel->upload.buffer_len = 0;
}
if (size <= sizeof(intel->upload.buffer)) {
if (intel->upload.buffer_len == 0)
intel->upload.buffer_offset = base;
else
intel->upload.buffer_len += delta;
ptr = intel->upload.buffer + intel->upload.buffer_len;
intel->upload.buffer_len += size;
} else
ptr = malloc(size);
return ptr;
}
void intel_upload_unmap(struct intel_context *intel,
const void *ptr, GLuint size, GLuint align,
drm_intel_bo **return_bo,
GLuint *return_offset)
{
GLuint base;
base = (intel->upload.offset + align - 1) / align * align;
if (size > sizeof(intel->upload.buffer)) {
drm_intel_bo_subdata(intel->upload.bo, base, size, ptr);
free((void*)ptr);
}
drm_intel_bo_reference(intel->upload.bo);
*return_bo = intel->upload.bo;
*return_offset = base;
intel->upload.offset = base + size;
}
drm_intel_bo *
intel_bufferobj_source(struct intel_context *intel,
struct intel_buffer_object *intel_obj,
GLuint *offset)
{
if (intel_obj->buffer == NULL) {
intel_upload_data(intel,
intel_obj->sys_buffer, intel_obj->Base.Size, 64,
&intel_obj->buffer, &intel_obj->offset);
intel_obj->source = 1;
}
*offset = intel_obj->offset;
return intel_obj->buffer;
}
static void
intel_bufferobj_copy_subdata(struct gl_context *ctx,
struct gl_buffer_object *src,
struct gl_buffer_object *dst,
GLintptr read_offset, GLintptr write_offset,
GLsizeiptr size)
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_src = intel_buffer_object(src);
struct intel_buffer_object *intel_dst = intel_buffer_object(dst);
drm_intel_bo *src_bo, *dst_bo;
GLuint src_offset;
if (size == 0)
return;
/* If we're in system memory, just map and memcpy. */
if (intel_src->sys_buffer || intel_dst->sys_buffer || intel->gen >= 6) {
/* The same buffer may be used, but note that regions copied may
* not overlap.
*/
if (src == dst) {
char *ptr = intel_bufferobj_map(ctx, GL_COPY_WRITE_BUFFER,
GL_READ_WRITE, dst);
memcpy(ptr + write_offset, ptr + read_offset, size);
intel_bufferobj_unmap(ctx, GL_COPY_WRITE_BUFFER, dst);
} else {
const char *src_ptr;
char *dst_ptr;
src_ptr = intel_bufferobj_map(ctx, GL_COPY_READ_BUFFER,
GL_READ_ONLY, src);
dst_ptr = intel_bufferobj_map(ctx, GL_COPY_WRITE_BUFFER,
GL_WRITE_ONLY, dst);
memcpy(dst_ptr + write_offset, src_ptr + read_offset, size);
intel_bufferobj_unmap(ctx, GL_COPY_READ_BUFFER, src);
intel_bufferobj_unmap(ctx, GL_COPY_WRITE_BUFFER, dst);
}
return;
}
/* Otherwise, we have real BOs, so blit them. */
dst_bo = intel_bufferobj_buffer(intel, intel_dst, INTEL_WRITE_PART);
src_bo = intel_bufferobj_source(intel, intel_src, &src_offset);
intel_emit_linear_blit(intel,
dst_bo, write_offset,
src_bo, read_offset + src_offset, size);
/* Since we've emitted some blits to buffers that will (likely) be used
* in rendering operations in other cache domains in this batch, emit a
* flush. Once again, we wish for a domain tracker in libdrm to cover
* usage inside of a batchbuffer.
*/
intel_batchbuffer_emit_mi_flush(intel);
}
#if FEATURE_APPLE_object_purgeable
static GLenum
intel_buffer_purgeable(struct gl_context * ctx,
drm_intel_bo *buffer,
GLenum option)
{
int retained = 0;
if (buffer != NULL)
retained = drm_intel_bo_madvise (buffer, I915_MADV_DONTNEED);
return retained ? GL_VOLATILE_APPLE : GL_RELEASED_APPLE;
}
static GLenum
intel_buffer_object_purgeable(struct gl_context * ctx,
struct gl_buffer_object *obj,
GLenum option)
{
struct intel_buffer_object *intel;
intel = intel_buffer_object (obj);
if (intel->buffer != NULL)
return intel_buffer_purgeable (ctx, intel->buffer, option);
if (option == GL_RELEASED_APPLE) {
if (intel->sys_buffer != NULL) {
free(intel->sys_buffer);
intel->sys_buffer = NULL;
}
return GL_RELEASED_APPLE;
} else {
/* XXX Create the buffer and madvise(MADV_DONTNEED)? */
return intel_buffer_purgeable (ctx,
intel_bufferobj_buffer(intel_context(ctx),
intel, INTEL_READ),
option);
}
}
static GLenum
intel_texture_object_purgeable(struct gl_context * ctx,
struct gl_texture_object *obj,
GLenum option)
{
struct intel_texture_object *intel;
intel = intel_texture_object(obj);
if (intel->mt == NULL || intel->mt->region == NULL)
return GL_RELEASED_APPLE;
return intel_buffer_purgeable (ctx, intel->mt->region->buffer, option);
}
static GLenum
intel_render_object_purgeable(struct gl_context * ctx,
struct gl_renderbuffer *obj,
GLenum option)
{
struct intel_renderbuffer *intel;
intel = intel_renderbuffer(obj);
if (intel->region == NULL)
return GL_RELEASED_APPLE;
return intel_buffer_purgeable (ctx, intel->region->buffer, option);
}
static GLenum
intel_buffer_unpurgeable(struct gl_context * ctx,
drm_intel_bo *buffer,
GLenum option)
{
int retained;
retained = 0;
if (buffer != NULL)
retained = drm_intel_bo_madvise (buffer, I915_MADV_WILLNEED);
return retained ? GL_RETAINED_APPLE : GL_UNDEFINED_APPLE;
}
static GLenum
intel_buffer_object_unpurgeable(struct gl_context * ctx,
struct gl_buffer_object *obj,
GLenum option)
{
return intel_buffer_unpurgeable (ctx, intel_buffer_object (obj)->buffer, option);
}
static GLenum
intel_texture_object_unpurgeable(struct gl_context * ctx,
struct gl_texture_object *obj,
GLenum option)
{
struct intel_texture_object *intel;
intel = intel_texture_object(obj);
if (intel->mt == NULL || intel->mt->region == NULL)
return GL_UNDEFINED_APPLE;
return intel_buffer_unpurgeable (ctx, intel->mt->region->buffer, option);
}
static GLenum
intel_render_object_unpurgeable(struct gl_context * ctx,
struct gl_renderbuffer *obj,
GLenum option)
{
struct intel_renderbuffer *intel;
intel = intel_renderbuffer(obj);
if (intel->region == NULL)
return GL_UNDEFINED_APPLE;
return intel_buffer_unpurgeable (ctx, intel->region->buffer, option);
}
#endif
void
intelInitBufferObjectFuncs(struct dd_function_table *functions)
{
functions->NewBufferObject = intel_bufferobj_alloc;
functions->DeleteBuffer = intel_bufferobj_free;
functions->BufferData = intel_bufferobj_data;
functions->BufferSubData = intel_bufferobj_subdata;
functions->GetBufferSubData = intel_bufferobj_get_subdata;
functions->MapBuffer = intel_bufferobj_map;
functions->MapBufferRange = intel_bufferobj_map_range;
functions->FlushMappedBufferRange = intel_bufferobj_flush_mapped_range;
functions->UnmapBuffer = intel_bufferobj_unmap;
functions->CopyBufferSubData = intel_bufferobj_copy_subdata;
#if FEATURE_APPLE_object_purgeable
functions->BufferObjectPurgeable = intel_buffer_object_purgeable;
functions->TextureObjectPurgeable = intel_texture_object_purgeable;
functions->RenderObjectPurgeable = intel_render_object_purgeable;
functions->BufferObjectUnpurgeable = intel_buffer_object_unpurgeable;
functions->TextureObjectUnpurgeable = intel_texture_object_unpurgeable;
functions->RenderObjectUnpurgeable = intel_render_object_unpurgeable;
#endif
}
Reference in a new issue View git blame Copy permalink