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/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* From trusted/ppb_graphics_3d_trusted.idl,
* modified Mon Nov 26 15:49:46 2012.
*/
#ifndef PPAPI_C_TRUSTED_PPB_GRAPHICS_3D_TRUSTED_H_
#define PPAPI_C_TRUSTED_PPB_GRAPHICS_3D_TRUSTED_H_
#include "ppapi/c/pp_bool.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_macros.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/pp_stdint.h"
#define PPB_GRAPHICS_3D_TRUSTED_INTERFACE_1_0 "PPB_Graphics3DTrusted;1.0"
#define PPB_GRAPHICS_3D_TRUSTED_INTERFACE PPB_GRAPHICS_3D_TRUSTED_INTERFACE_1_0
/**
* @file
* Graphics 3D trusted interfaces. */
/**
* @addtogroup Enums
* @{
*/
typedef enum {
PPB_GRAPHICS3D_TRUSTED_ERROR_OK,
PPB_GRAPHICS3D_TRUSTED_ERROR_GENERICERROR,
PPB_GRAPHICS3D_TRUSTED_ERROR_INVALIDARGUMENTS,
PPB_GRAPHICS3D_TRUSTED_ERROR_INVALIDSIZE,
PPB_GRAPHICS3D_TRUSTED_ERROR_LOSTCONTEXT,
PPB_GRAPHICS3D_TRUSTED_ERROR_OUTOFBOUNDS,
PPB_GRAPHICS3D_TRUSTED_ERROR_UNKNOWNCOMMAND
} PPB_Graphics3DTrustedError;
/**
* @}
*/
/**
* @addtogroup Structs
* @{
*/
struct PP_Graphics3DTrustedState {
/* Size of the command buffer in command buffer entries. */
int32_t num_entries;
/* The offset (in entries) from which the reader is reading. */
int32_t get_offset;
/* The offset (in entries) at which the writer is writing. */
int32_t put_offset;
/* The current token value. This is used by the writer to defer
* changes to shared memory objects until the reader has reached a certain
* point in the command buffer. The reader is responsible for updating the
* token value, for example in response to an asynchronous set token command
* embedded in the command buffer. The default token value is zero. */
int32_t token;
/* Error status. */
PPB_Graphics3DTrustedError error;
/* Generation index of this state. The generation index is incremented every
* time a new state is retrieved from the command processor, so that
* consistency can be kept even if IPC messages are processed out-of-order. */
uint32_t generation;
};
/**
* @}
*/
/**
* @addtogroup Interfaces
* @{
*/
struct PPB_Graphics3DTrusted_1_0 {
/* Creates a raw Graphics3D resource. A raw Graphics3D is intended to be used
* with the trusted interface, through the command buffer (for proxying). */
PP_Resource (*CreateRaw)(PP_Instance instance_id,
PP_Resource share_context,
const int32_t attrib_list[]);
/* Initializes the command buffer with the given size. */
PP_Bool (*InitCommandBuffer)(PP_Resource context_id);
/* Sets the buffer used for commands. */
PP_Bool (*SetGetBuffer)(PP_Resource context, int32_t transfer_buffer_id);
/* Returns the current state. */
struct PP_Graphics3DTrustedState (*GetState)(PP_Resource context);
/* Create a transfer buffer and return a handle that uniquely
* identifies it or -1 on error. */
int32_t (*CreateTransferBuffer)(PP_Resource context, uint32_t size);
/* Destroy a transfer buffer and recycle the handle. */
PP_Bool (*DestroyTransferBuffer)(PP_Resource context, int32_t id);
/* Get the transfer buffer associated with a handle. */
PP_Bool (*GetTransferBuffer)(PP_Resource context,
int32_t id,
int* shm_handle,
uint32_t* shm_size);
/* The writer calls this to update its put offset. */
PP_Bool (*Flush)(PP_Resource context, int32_t put_offset);
/* The writer calls this to update its put offset. This function returns the
* reader's most recent get offset. Does not return until after the put offset
* change callback has been invoked.
* Note: This function remains for backwards compatibility; FlushSyncFast
* is now the preferred way to sync. */
struct PP_Graphics3DTrustedState (*FlushSync)(PP_Resource context,
int32_t put_offset);
/* Like FlushSync, but returns before processing commands if the get offset is
* different than last_known_get. Allows synchronization with the command
* processor without forcing immediate command execution. */
struct PP_Graphics3DTrustedState (*FlushSyncFast)(PP_Resource context,
int32_t put_offset,
int32_t last_known_get);
};
typedef struct PPB_Graphics3DTrusted_1_0 PPB_Graphics3DTrusted;
/**
* @}
*/
#endif /* PPAPI_C_TRUSTED_PPB_GRAPHICS_3D_TRUSTED_H_ */
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