diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_winsys.h')
| -rw-r--r-- | src/gallium/drivers/r300/r300_winsys.h | 311 |
1 files changed, 225 insertions, 86 deletions
diff --git a/src/gallium/drivers/r300/r300_winsys.h b/src/gallium/drivers/r300/r300_winsys.h index 77c1c13ef9a..ff11546a647 100644 --- a/src/gallium/drivers/r300/r300_winsys.h +++ b/src/gallium/drivers/r300/r300_winsys.h @@ -1,5 +1,6 @@ /* * Copyright 2008 Corbin Simpson <[email protected]> + * Copyright 2010 Marek Olšák <[email protected]> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -23,17 +24,25 @@ #ifndef R300_WINSYS_H #define R300_WINSYS_H -/* The public interface header for the r300 pipe driver. - * Any winsys hosting this pipe needs to implement r300_winsys and then - * call r300_create_screen to start things. */ +/* The public winsys interface header for the r300 pipe driver. + * Any winsys hosting this pipe needs to implement r300_winsys_screen and then + * call r300_screen_create to start things. */ #include "pipe/p_defines.h" #include "pipe/p_state.h" #include "r300_defines.h" +struct r300_winsys_screen; + struct r300_winsys_buffer; +struct r300_winsys_cs { + uint32_t *ptr; /* Pointer to the beginning of the CS. */ + unsigned cdw; /* Number of used dwords. */ + unsigned ndw; /* Size of the CS in dwords. */ +}; + enum r300_value_id { R300_VID_PCI_ID, R300_VID_GB_PIPES, @@ -48,121 +57,251 @@ enum r300_reference_domain { /* bitfield */ }; struct r300_winsys_screen { + /** + * Destroy this winsys. + * + * \param ws The winsys this function is called from. + */ void (*destroy)(struct r300_winsys_screen *ws); - + /** + * Query a system value from a winsys. + * + * \param ws The winsys this function is called from. + * \param vid One of the R300_VID_* enums. + */ + uint32_t (*get_value)(struct r300_winsys_screen *ws, + enum r300_value_id vid); + + /************************************************************************** * Buffer management. Buffer attributes are mostly fixed over its lifetime. * * Remember that gallium gets to choose the interface it needs, and the * window systems must then implement that interface (rather than the * other way around...). + *************************************************************************/ + + /** + * Create a buffer object. * - * usage is a bitmask of R300_WINSYS_BUFFER_USAGE_PIXEL/VERTEX/INDEX/CONSTANT. This - * usage argument is only an optimization hint, not a guarantee, therefore - * proper behavior must be observed in all circumstances. - * - * alignment indicates the client's alignment requirements, eg for - * SSE instructions. + * \param ws The winsys this function is called from. + * \param size The size to allocate. + * \param alignment An alignment of the buffer in memory. + * \param bind A bitmask of the PIPE_BIND_* flags. + * \param usage A bitmask of the PIPE_USAGE_* flags. + * \param domain A bitmask of the R300_DOMAIN_* flags. + * \return The created buffer object. */ struct r300_winsys_buffer *(*buffer_create)(struct r300_winsys_screen *ws, - unsigned alignment, - unsigned usage, - enum r300_buffer_domain domain, - unsigned size); + unsigned size, + unsigned alignment, + unsigned bind, + unsigned usage, + enum r300_buffer_domain domain); /** - * Map the entire data store of a buffer object into the client's address. - * flags is bitmask of R300_WINSYS_BUFFER_USAGE_CPU_READ/WRITE flags. + * Reference a buffer object (assign with reference counting). + * + * \param ws The winsys this function is called from. + * \param pdst A destination pointer to set the source buffer to. + * \param src A source buffer object. */ - void *(*buffer_map)( struct r300_winsys_screen *ws, - struct r300_winsys_buffer *buf, - unsigned usage); + void (*buffer_reference)(struct r300_winsys_screen *ws, + struct r300_winsys_buffer **pdst, + struct r300_winsys_buffer *src); - void (*buffer_unmap)( struct r300_winsys_screen *ws, - struct r300_winsys_buffer *buf ); + /** + * Map the entire data store of a buffer object into the client's address + * space. + * + * \param ws The winsys this function is called from. + * \param buf A winsys buffer object to map. + * \param cs A command stream to flush if the buffer is referenced by it. + * \param usage A bitmask of the PIPE_TRANSFER_* flags. + * \return The pointer at the beginning of the buffer. + */ + void *(*buffer_map)(struct r300_winsys_screen *ws, + struct r300_winsys_buffer *buf, + struct r300_winsys_cs *cs, + enum pipe_transfer_usage usage); - void (*buffer_destroy)( struct r300_winsys_buffer *buf ); + /** + * Unmap a buffer object from the client's address space. + * + * \param ws The winsys this function is called from. + * \param buf A winsys buffer object to unmap. + */ + void (*buffer_unmap)(struct r300_winsys_screen *ws, + struct r300_winsys_buffer *buf); + /** + * Wait for a buffer object until it is not used by a GPU. This is + * equivalent to a fence placed after the last command using the buffer, + * and synchronizing to the fence. + * + * \param ws The winsys this function is called from. + * \param buf A winsys buffer object to wait for. + */ + void (*buffer_wait)(struct r300_winsys_screen *ws, + struct r300_winsys_buffer *buf); - void (*buffer_reference)(struct r300_winsys_screen *rws, - struct r300_winsys_buffer **pdst, - struct r300_winsys_buffer *src); + /** + * Return tiling flags describing a memory layout of a buffer object. + * + * \param ws The winsys this function is called from. + * \param buf A winsys buffer object to get the flags from. + * \param macrotile A pointer to the return value of the microtile flag. + * \param microtile A pointer to the return value of the macrotile flag. + * + * \note microtile and macrotile are not bitmasks! + */ + void (*buffer_get_tiling)(struct r300_winsys_screen *ws, + struct r300_winsys_buffer *buf, + enum r300_buffer_tiling *microtile, + enum r300_buffer_tiling *macrotile); - void (*buffer_wait)(struct r300_winsys_screen *rws, - struct r300_winsys_buffer *buf); + /** + * Set tiling flags describing a memory layout of a buffer object. + * + * \param ws The winsys this function is called from. + * \param buf A winsys buffer object to set the flags for. + * \param macrotile A macrotile flag. + * \param microtile A microtile flag. + * \param stride A stride of the buffer in bytes, for texturing. + * + * \note microtile and macrotile are not bitmasks! + */ + void (*buffer_set_tiling)(struct r300_winsys_screen *ws, + struct r300_winsys_buffer *buf, + enum r300_buffer_tiling microtile, + enum r300_buffer_tiling macrotile, + unsigned stride); - /* Add a pipe_resource to the list of buffer objects to validate. */ - boolean (*add_buffer)(struct r300_winsys_screen *winsys, - struct r300_winsys_buffer *buf, - enum r300_buffer_domain rd, - enum r300_buffer_domain wd); + /** + * Get a winsys buffer from a winsys handle. The internal structure + * of the handle is platform-specific and only a winsys should access it. + * + * \param ws The winsys this function is called from. + * \param whandle A winsys handle pointer as was received from a state + * tracker. + * \param stride The returned buffer stride in bytes. + * \param size The returned buffer size. + */ + struct r300_winsys_buffer *(*buffer_from_handle)(struct r300_winsys_screen *ws, + struct winsys_handle *whandle, + unsigned *stride, + unsigned *size); + /** + * Get a winsys handle from a winsys buffer. The internal structure + * of the handle is platform-specific and only a winsys should access it. + * + * \param ws The winsys this function is called from. + * \param buf A winsys buffer object to get the handle from. + * \param whandle A winsys handle pointer. + * \param stride A stride of the buffer in bytes, for texturing. + * \return TRUE on success. + */ + boolean (*buffer_get_handle)(struct r300_winsys_screen *ws, + struct r300_winsys_buffer *buf, + unsigned stride, + struct winsys_handle *whandle); - /* Revalidate all currently setup pipe_buffers. - * Returns TRUE if a flush is required. */ - boolean (*validate)(struct r300_winsys_screen* winsys); + /************************************************************************** + * Command submission. + * + * Each pipe context should create its own command stream and submit + * commands independently of other contexts. + *************************************************************************/ - /* Return the number of free dwords in CS. */ - unsigned (*get_cs_free_dwords)(struct r300_winsys_screen *winsys); + /** + * Create a command stream. + * + * \param ws The winsys this function is called from. + */ + struct r300_winsys_cs *(*cs_create)(struct r300_winsys_screen *ws); - /* Return the pointer to the first free dword in CS and assume a pipe - * driver wants to fill "count" dwords. */ - uint32_t *(*get_cs_pointer)(struct r300_winsys_screen *winsys, - unsigned count); + /** + * Destroy a command stream. + * + * \param cs A command stream to destroy. + */ + void (*cs_destroy)(struct r300_winsys_cs *cs); - /* Write a dword to the command buffer. */ - void (*write_cs_dword)(struct r300_winsys_screen* winsys, uint32_t dword); + /** + * Add a buffer object to the list of buffers to validate. + * + * \param cs A command stream to add buffer for validation against. + * \param buf A winsys buffer to validate. + * \param rd A read domain containing a bitmask + * of the R300_DOMAIN_* flags. + * \param wd A write domain containing a bitmask + * of the R300_DOMAIN_* flags. + */ + void (*cs_add_buffer)(struct r300_winsys_cs *cs, + struct r300_winsys_buffer *buf, + enum r300_buffer_domain rd, + enum r300_buffer_domain wd); - /* Write a table of dwords to the command buffer. */ - void (*write_cs_table)(struct r300_winsys_screen* winsys, - const void *dwords, unsigned count); + /** + * Revalidate all currently set up winsys buffers. + * Returns TRUE if a flush is required. + * + * \param cs A command stream to validate. + */ + boolean (*cs_validate)(struct r300_winsys_cs *cs); - /* Write a relocated dword to the command buffer. */ - void (*write_cs_reloc)(struct r300_winsys_screen *winsys, + /** + * Write a relocated dword to a command buffer. + * + * \param cs A command stream the relocation is written to. + * \param buf A winsys buffer to write the relocation for. + * \param rd A read domain containing a bitmask of the R300_DOMAIN_* flags. + * \param wd A write domain containing a bitmask of the R300_DOMAIN_* flags. + */ + void (*cs_write_reloc)(struct r300_winsys_cs *cs, struct r300_winsys_buffer *buf, enum r300_buffer_domain rd, - enum r300_buffer_domain wd, - uint32_t flags); - - /* Flush the CS. */ - void (*flush_cs)(struct r300_winsys_screen* winsys); - - /* winsys flush - callback from winsys when flush required */ - void (*set_flush_cb)(struct r300_winsys_screen *winsys, - void (*flush_cb)(void *), void *data); - - void (*reset_bos)(struct r300_winsys_screen *winsys); - - void (*buffer_get_tiling)(struct r300_winsys_screen *winsys, - struct r300_winsys_buffer *buffer, - enum r300_buffer_tiling *microtiled, - enum r300_buffer_tiling *macrotiled); + enum r300_buffer_domain wd); - void (*buffer_set_tiling)(struct r300_winsys_screen *winsys, - struct r300_winsys_buffer *buffer, - uint32_t pitch, - enum r300_buffer_tiling microtiled, - enum r300_buffer_tiling macrotiled); - - uint32_t (*get_value)(struct r300_winsys_screen *winsys, - enum r300_value_id vid); + /** + * Flush a command stream. + * + * \param cs A command stream to flush. + */ + void (*cs_flush)(struct r300_winsys_cs *cs); - struct r300_winsys_buffer *(*buffer_from_handle)(struct r300_winsys_screen *winsys, - unsigned handle); + /** + * Set a flush callback which is called from winsys when flush is + * required. + * + * \param cs A command stream to set the callback for. + * \param flush A flush callback function associated with the command stream. + * \param user A user pointer that will be passed to the flush callback. + */ + void (*cs_set_flush)(struct r300_winsys_cs *cs, + void (*flush)(void *), + void *user); - boolean (*buffer_get_handle)(struct r300_winsys_screen *winsys, - struct r300_winsys_buffer *buffer, - struct winsys_handle *whandle); + /** + * Reset the list of buffer objects to validate, usually called + * prior to adding buffer objects for validation. + * + * \param cs A command stream to reset buffers for. + */ + void (*cs_reset_buffers)(struct r300_winsys_cs *cs); - boolean (*is_buffer_referenced)(struct r300_winsys_screen *winsys, - struct r300_winsys_buffer *buffer, - enum r300_reference_domain domain); + /** + * Return TRUE if a buffer is referenced by a command stream or by hardware + * (i.e. is busy), based on the domain parameter. + * + * \param cs A command stream. + * \param buf A winsys buffer. + * \param domain A bitmask of the R300_REF_* enums. + */ + boolean (*cs_is_buffer_referenced)(struct r300_winsys_cs *cs, + struct r300_winsys_buffer *buf, + enum r300_reference_domain domain); }; -struct r300_winsys_screen * -r300_winsys_screen(struct pipe_screen *screen); - -/* Creates a new r300 screen. */ -struct pipe_screen* r300_create_screen(struct r300_winsys_screen *rws); - #endif /* R300_WINSYS_H */ |