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st/mesa: implement ARB_buffer_storage

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Reviewed-by: Fredrik Höglund <fredrik@kde.org>
This commit is contained in:
Marek Olšák 2014-01-27 21:45:54 +01:00
parent 5f61f052b5
commit dfa0b8d9b8
3 changed files with 75 additions and 22 deletions
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79
src/mesa/state_tracker/st_cb_bufferobjects.c
View file

@ -182,7 +182,7 @@ st_bufferobj_data(struct gl_context *ctx,
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct st_buffer_object *st_obj = st_buffer_object(obj);
unsigned bind, pipe_usage;
unsigned bind, pipe_usage, pipe_flags = 0;
if (size && data && st_obj->buffer &&
st_obj->Base.Size == size &&
@ -229,24 +229,41 @@ st_bufferobj_data(struct gl_context *ctx,
bind = 0;
}
switch (usage) {
case GL_STATIC_DRAW:
case GL_STATIC_READ:
case GL_STATIC_COPY:
default:
pipe_usage = PIPE_USAGE_DEFAULT;
break;
case GL_DYNAMIC_DRAW:
case GL_DYNAMIC_READ:
case GL_DYNAMIC_COPY:
pipe_usage = PIPE_USAGE_DYNAMIC;
break;
case GL_STREAM_DRAW:
case GL_STREAM_READ:
case GL_STREAM_COPY:
pipe_usage = PIPE_USAGE_STREAM;
break;
/* Set usage. */
if (st_obj->Base.Immutable) {
/* BufferStorage */
if (storageFlags & GL_CLIENT_STORAGE_BIT)
pipe_usage = PIPE_USAGE_STAGING;
else
pipe_usage = PIPE_USAGE_DEFAULT;
}
else {
/* BufferData */
switch (usage) {
case GL_STATIC_DRAW:
case GL_STATIC_READ:
case GL_STATIC_COPY:
default:
pipe_usage = PIPE_USAGE_DEFAULT;
break;
case GL_DYNAMIC_DRAW:
case GL_DYNAMIC_READ:
case GL_DYNAMIC_COPY:
pipe_usage = PIPE_USAGE_DYNAMIC;
break;
case GL_STREAM_DRAW:
case GL_STREAM_READ:
case GL_STREAM_COPY:
pipe_usage = PIPE_USAGE_STREAM;
break;
}
}
/* Set flags. */
if (storageFlags & GL_MAP_PERSISTENT_BIT)
pipe_flags |= PIPE_RESOURCE_FLAG_MAP_PERSISTENT;
if (storageFlags & GL_MAP_COHERENT_BIT)
pipe_flags |= PIPE_RESOURCE_FLAG_MAP_COHERENT;
pipe_resource_reference( &st_obj->buffer, NULL );
@ -255,8 +272,20 @@ st_bufferobj_data(struct gl_context *ctx,
}
if (size != 0) {
st_obj->buffer = pipe_buffer_create(pipe->screen, bind,
pipe_usage, size);
struct pipe_resource buffer;
memset(&buffer, 0, sizeof buffer);
buffer.target = PIPE_BUFFER;
buffer.format = PIPE_FORMAT_R8_UNORM; /* want TYPELESS or similar */
buffer.bind = bind;
buffer.usage = pipe_usage;
buffer.flags = pipe_flags;
buffer.width0 = size;
buffer.height0 = 1;
buffer.depth0 = 1;
buffer.array_size = 1;
st_obj->buffer = pipe->screen->resource_create(pipe->screen, &buffer);
if (!st_obj->buffer) {
/* out of memory */
@ -309,6 +338,12 @@ st_bufferobj_map_range(struct gl_context *ctx,
if (access & GL_MAP_UNSYNCHRONIZED_BIT)
flags |= PIPE_TRANSFER_UNSYNCHRONIZED;
if (access & GL_MAP_PERSISTENT_BIT)
flags |= PIPE_TRANSFER_PERSISTENT;
if (access & GL_MAP_COHERENT_BIT)
flags |= PIPE_TRANSFER_COHERENT;
/* ... other flags ...
*/
@ -399,8 +434,8 @@ st_copy_buffer_subdata(struct gl_context *ctx,
return;
/* buffer should not already be mapped */
assert(!src->Pointer);
assert(!dst->Pointer);
assert(!_mesa_check_disallowed_mapping(src));
assert(!_mesa_check_disallowed_mapping(dst));
u_box_1d(readOffset, size, &box);

17
src/mesa/state_tracker/st_cb_texturebarrier.c
View file

@ -54,7 +54,24 @@ st_TextureBarrier(struct gl_context *ctx)
}
/**
* Called via ctx->Driver.MemoryBarrier()
*/
static void
st_MemoryBarrier(struct gl_context *ctx, GLbitfield barriers)
{
struct pipe_context *pipe = st_context(ctx)->pipe;
unsigned flags = 0;
if (barriers & GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT)
flags |= PIPE_BARRIER_MAPPED_BUFFER;
if (flags && pipe->memory_barrier)
pipe->memory_barrier(pipe, flags);
}
void st_init_texture_barrier_functions(struct dd_function_table *functions)
{
functions->TextureBarrier = st_TextureBarrier;
functions->MemoryBarrier = st_MemoryBarrier;
}

1
src/mesa/state_tracker/st_extensions.c
View file

@ -376,6 +376,7 @@ void st_init_extensions(struct st_context *st)
static const struct st_extension_cap_mapping cap_mapping[] = {
{ o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
{ o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
{ o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
{ o(ARB_depth_texture), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },