src/gallium/drivers/noop/noop_pipe.c - platform/external/mesa3d - Git at Google

 /*
  * 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)
 {
 	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 void noop_begin_query(struct pipe_context *ctx, struct pipe_query *query)
 {
 }

 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 struct pipe_transfer *noop_get_transfer(struct pipe_context *context,
 						struct pipe_resource *resource,
 						unsigned level,
 						enum pipe_transfer_usage usage,
 						const struct pipe_box *box)
 {
 	struct pipe_transfer *transfer;

 	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;
 	return transfer;
 }

 static void *noop_transfer_map(struct pipe_context *pipe,
 				struct pipe_transfer *transfer)
 {
 	struct noop_resource *nresource = (struct noop_resource *)transfer->resource;

 	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)
 {
 }

 static void noop_transfer_destroy(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)
 {
 }


 /*
  * context
  */
 static void noop_flush(struct pipe_context *ctx,
 			struct pipe_fence_handle **fence)
 {
 }

 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->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->get_transfer = noop_get_transfer;
 	ctx->transfer_map = noop_transfer_map;
 	ctx->transfer_flush_region = noop_transfer_flush_region;
 	ctx->transfer_unmap = noop_transfer_unmap;
 	ctx->transfer_destroy = noop_transfer_destroy;
 	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)
 {
 }

 static const char *noop_get_vendor(struct pipe_screen* pscreen)
 {
 	return "X.Org";
 }

 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_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;
 }
	/*
	* 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)
	{
	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 void noop_begin_query(struct pipe_context ctx, struct pipe_query query)
	{
	}

	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 struct pipe_transfer noop_get_transfer(struct pipe_context context,
	struct pipe_resource *resource,
	unsigned level,
	enum pipe_transfer_usage usage,
	const struct pipe_box *box)
	{
	struct pipe_transfer *transfer;

	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;
	return transfer;
	}

	static void noop_transfer_map(struct pipe_context pipe,
	struct pipe_transfer *transfer)
	{
	struct noop_resource nresource = (struct noop_resource )transfer->resource;

	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)
	{
	}

	static void noop_transfer_destroy(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)
	{
	}


	/*
	* context
	*/
	static void noop_flush(struct pipe_context *ctx,
	struct pipe_fence_handle **fence)
	{
	}

	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->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->get_transfer = noop_get_transfer;
	ctx->transfer_map = noop_transfer_map;
	ctx->transfer_flush_region = noop_transfer_flush_region;
	ctx->transfer_unmap = noop_transfer_unmap;
	ctx->transfer_destroy = noop_transfer_destroy;
	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)
	{
	}

	static const char noop_get_vendor(struct pipe_screen pscreen)
	{
	return "X.Org";
	}

	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_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;
	}