/*
* Copyright 2010 Red Hat Inc.
*
* 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
* on 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
* THE AUTHOR(S) AND/OR THEIR 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 <stdio.h>
#include <errno.h>
#include "pipe/p_defines.h"
#include "pipe/p_state.h"
#include "pipe/p_context.h"
#include "pipe/p_screen.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "noop_public.h"
DEBUG_GET_ONCE_BOOL_OPTION(noop, "GALLIUM_NOOP", FALSE)
void noop_init_state_functions(struct pipe_context *ctx);
struct noop_pipe_screen {
struct pipe_screen pscreen;
struct pipe_screen *oscreen;
};
/*
* query
*/
struct noop_query {
unsigned query;
};
static struct pipe_query *noop_create_query(struct pipe_context *ctx, unsigned query_type, unsigned index)
{
struct noop_query *query = CALLOC_STRUCT(noop_query);
return (struct pipe_query *)query;
}
static void noop_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
{
FREE(query);
}
static boolean noop_begin_query(struct pipe_context *ctx, struct pipe_query *query)
{
return true;
}
static void noop_end_query(struct pipe_context *ctx, struct pipe_query *query)
{
}
static boolean noop_get_query_result(struct pipe_context *ctx,
struct pipe_query *query,
boolean wait,
union pipe_query_result *vresult)
{
uint64_t *result = (uint64_t*)vresult;
*result = 0;
return TRUE;
}
/*
* resource
*/
struct noop_resource {
struct pipe_resource base;
unsigned size;
char *data;
struct sw_displaytarget *dt;
};
static struct pipe_resource *noop_resource_create(struct pipe_screen *screen,
const struct pipe_resource *templ)
{
struct noop_resource *nresource;
unsigned stride;
nresource = CALLOC_STRUCT(noop_resource);
if (nresource == NULL)
return NULL;
stride = util_format_get_stride(templ->format, templ->width0);
nresource->base = *templ;
nresource->base.screen = screen;
nresource->size = stride * templ->height0 * templ->depth0;
nresource->data = MALLOC(nresource->size);
pipe_reference_init(&nresource->base.reference, 1);
if (nresource->data == NULL) {
FREE(nresource);
return NULL;
}
return &nresource->base;
}
static struct pipe_resource *noop_resource_from_handle(struct pipe_screen *screen,
const struct pipe_resource *templ,
struct winsys_handle *handle)
{
struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
struct pipe_screen *oscreen = noop_screen->oscreen;
struct pipe_resource *result;
struct pipe_resource *noop_resource;
result = oscreen->resource_from_handle(oscreen, templ, handle);
noop_resource = noop_resource_create(screen, result);
pipe_resource_reference(&result, NULL);
return noop_resource;
}
static boolean noop_resource_get_handle(struct pipe_screen *screen,
struct pipe_resource *resource,
struct winsys_handle *handle)
{
return FALSE;
}
static void noop_resource_destroy(struct pipe_screen *screen,
struct pipe_resource *resource)
{
struct noop_resource *nresource = (struct noop_resource *)resource;
FREE(nresource->data);
FREE(resource);
}
/*
* transfer
*/
static void *noop_transfer_map(struct pipe_context *pipe,
struct pipe_resource *resource,
unsigned level,
enum pipe_transfer_usage usage,
const struct pipe_box *box,
struct pipe_transfer **ptransfer)
{
struct pipe_transfer *transfer;
struct noop_resource *nresource = (struct noop_resource *)resource;
transfer = CALLOC_STRUCT(pipe_transfer);
if (transfer == NULL)
return NULL;
pipe_resource_reference(&transfer->resource, resource);
transfer->level = level;
transfer->usage = usage;
transfer->box = *box;
transfer->stride = 1;
transfer->layer_stride = 1;
*ptransfer = transfer;
return nresource->data;
}
static void noop_transfer_flush_region(struct pipe_context *pipe,
struct pipe_transfer *transfer,
const struct pipe_box *box)
{
}
static void noop_transfer_unmap(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
pipe_resource_reference(&transfer->resource, NULL);
FREE(transfer);
}
static void noop_transfer_inline_write(struct pipe_context *pipe,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
const void *data,
unsigned stride,
unsigned layer_stride)
{
}
/*
* clear/copy
*/
static void noop_clear(struct pipe_context *ctx, unsigned buffers,
const union pipe_color_union *color, double depth, unsigned stencil)
{
}
static void noop_clear_render_target(struct pipe_context *ctx,
struct pipe_surface *dst,
const union pipe_color_union *color,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height)
{
}
static void noop_clear_depth_stencil(struct pipe_context *ctx,
struct pipe_surface *dst,
unsigned clear_flags,
double depth,
unsigned stencil,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height)
{
}
static void noop_resource_copy_region(struct pipe_context *ctx,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src,
unsigned src_level,
const struct pipe_box *src_box)
{
}
static void noop_blit(struct pipe_context *ctx,
const struct pipe_blit_info *info)
{
}
static void
noop_flush_resource(struct pipe_context *ctx,
struct pipe_resource *resource)
{
}
/*
* context
*/
static void noop_flush(struct pipe_context *ctx,
struct pipe_fence_handle **fence,
unsigned flags)
{
}
static void noop_destroy_context(struct pipe_context *ctx)
{
FREE(ctx);
}
static struct pipe_context *noop_create_context(struct pipe_screen *screen, void *priv)
{
struct pipe_context *ctx = CALLOC_STRUCT(pipe_context);
if (ctx == NULL)
return NULL;
ctx->screen = screen;
ctx->priv = priv;
ctx->destroy = noop_destroy_context;
ctx->flush = noop_flush;
ctx->clear = noop_clear;
ctx->clear_render_target = noop_clear_render_target;
ctx->clear_depth_stencil = noop_clear_depth_stencil;
ctx->resource_copy_region = noop_resource_copy_region;
ctx->blit = noop_blit;
ctx->flush_resource = noop_flush_resource;
ctx->create_query = noop_create_query;
ctx->destroy_query = noop_destroy_query;
ctx->begin_query = noop_begin_query;
ctx->end_query = noop_end_query;
ctx->get_query_result = noop_get_query_result;
ctx->transfer_map = noop_transfer_map;
ctx->transfer_flush_region = noop_transfer_flush_region;
ctx->transfer_unmap = noop_transfer_unmap;
ctx->transfer_inline_write = noop_transfer_inline_write;
noop_init_state_functions(ctx);
return ctx;
}
/*
* pipe_screen
*/
static void noop_flush_frontbuffer(struct pipe_screen *_screen,
struct pipe_resource *resource,
unsigned level, unsigned layer,
void *context_private, struct pipe_box *box)
{
}
static const char *noop_get_vendor(struct pipe_screen* pscreen)
{
return "X.Org";
}
static const char *noop_get_device_vendor(struct pipe_screen* pscreen)
{
return "NONE";
}
static const char *noop_get_name(struct pipe_screen* pscreen)
{
return "NOOP";
}
static int noop_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
{
struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
return screen->get_param(screen, param);
}
static float noop_get_paramf(struct pipe_screen* pscreen,
enum pipe_capf param)
{
struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
return screen->get_paramf(screen, param);
}
static int noop_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
{
struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
return screen->get_shader_param(screen, shader, param);
}
static boolean noop_is_format_supported(struct pipe_screen* pscreen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned usage)
{
struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
return screen->is_format_supported(screen, format, target, sample_count, usage);
}
static uint64_t noop_get_timestamp(struct pipe_screen *pscreen)
{
return 0;
}
static void noop_destroy_screen(struct pipe_screen *screen)
{
struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
struct pipe_screen *oscreen = noop_screen->oscreen;
oscreen->destroy(oscreen);
FREE(screen);
}
struct pipe_screen *noop_screen_create(struct pipe_screen *oscreen)
{
struct noop_pipe_screen *noop_screen;
struct pipe_screen *screen;
if (!debug_get_option_noop()) {
return oscreen;
}
noop_screen = CALLOC_STRUCT(noop_pipe_screen);
if (noop_screen == NULL) {
return NULL;
}
noop_screen->oscreen = oscreen;
screen = &noop_screen->pscreen;
screen->destroy = noop_destroy_screen;
screen->get_name = noop_get_name;
screen->get_vendor = noop_get_vendor;
screen->get_device_vendor = noop_get_device_vendor;
screen->get_param = noop_get_param;
screen->get_shader_param = noop_get_shader_param;
screen->get_paramf = noop_get_paramf;
screen->is_format_supported = noop_is_format_supported;
screen->context_create = noop_create_context;
screen->resource_create = noop_resource_create;
screen->resource_from_handle = noop_resource_from_handle;
screen->resource_get_handle = noop_resource_get_handle;
screen->resource_destroy = noop_resource_destroy;
screen->flush_frontbuffer = noop_flush_frontbuffer;
screen->get_timestamp = noop_get_timestamp;
return screen;
}