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xserver/glamor/glamor.h

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/*
* Copyright © 2008 Intel Corporation
*
* 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
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Zhigang Gong <zhigang.gong@linux.intel.com>
*
*/
#ifndef GLAMOR_H
#define GLAMOR_H
#include <scrnintstr.h>
#include <pixmapstr.h>
#include <gcstruct.h>
#include <picturestr.h>
#include <fb.h>
#include <fbpict.h>
#ifdef GLAMOR_FOR_XORG
#include <xf86xv.h>
#endif
struct glamor_context;
struct gbm_bo;
struct gbm_device;
/*
* glamor_pixmap_type : glamor pixmap's type.
* @MEMORY: pixmap is in memory.
* @TEXTURE_DRM: pixmap is in a texture created from a DRM buffer.
* @SEPARATE_TEXTURE: The texture is created from a DRM buffer, but
* the format is incompatible, so this type of pixmap
* will never fallback to DDX layer.
* @DRM_ONLY: pixmap is in a external DRM buffer.
* @TEXTURE_ONLY: pixmap is in an internal texture.
*/
typedef enum glamor_pixmap_type {
GLAMOR_MEMORY = 0, /* Newly calloc()ed pixmaps are memory. */
GLAMOR_TEXTURE_DRM,
GLAMOR_DRM_ONLY,
GLAMOR_TEXTURE_ONLY,
} glamor_pixmap_type_t;
#define GLAMOR_EGL_EXTERNAL_BUFFER 3
#define GLAMOR_USE_EGL_SCREEN (1 << 0)
#define GLAMOR_NO_DRI3 (1 << 1)
#define GLAMOR_VALID_FLAGS (GLAMOR_USE_EGL_SCREEN \
| GLAMOR_NO_DRI3)
/* until we need geometry shaders GL3.1 should suffice. */
#define GLAMOR_GL_CORE_VER_MAJOR 3
#define GLAMOR_GL_CORE_VER_MINOR 1
/* @glamor_init: Initialize glamor internal data structure.
*
* @screen: Current screen pointer.
* @flags: Please refer the flags description above.
*
* @GLAMOR_USE_EGL_SCREEN:
* If you are using EGL layer, then please set this bit
* on, otherwise, clear it.
*
* @GLAMOR_NO_DRI3
* Disable the built-in DRI3 support
*
* This function initializes necessary internal data structure
* for glamor. And before calling into this function, the OpenGL
* environment should be ready. Should be called before any real
* glamor rendering or texture allocation functions. And should
* be called after the DDX's screen initialization or at the last
* step of the DDX's screen initialization.
*/
extern _X_EXPORT Bool glamor_init(ScreenPtr screen, unsigned int flags);
extern _X_EXPORT void glamor_fini(ScreenPtr screen);
/* This function is used to free the glamor private screen's
* resources. If the DDX driver is not set GLAMOR_USE_SCREEN,
* then, DDX need to call this function at proper stage, if
* it is the xorg DDX driver,then it should be called at free
* screen stage not the close screen stage. The reason is after
* call to this function, the xorg DDX may need to destroy the
* screen pixmap which must be a glamor pixmap and requires
* the internal data structure still exist at that time.
* Otherwise, the glamor internal structure will not be freed.*/
extern _X_EXPORT Bool glamor_close_screen(ScreenPtr screen);
/* Let glamor to know the screen's fbo. The low level
* driver should already assign a tex
* to this pixmap through the set_pixmap_texture. */
extern _X_EXPORT void glamor_set_screen_pixmap(PixmapPtr screen_pixmap,
PixmapPtr *back_pixmap);
extern _X_EXPORT uint32_t glamor_get_pixmap_texture(PixmapPtr pixmap);
extern _X_EXPORT void glamor_set_pixmap_texture(PixmapPtr pixmap,
unsigned int tex);
extern _X_EXPORT void glamor_set_pixmap_type(PixmapPtr pixmap,
glamor_pixmap_type_t type);
extern _X_EXPORT void glamor_block_handler(ScreenPtr screen);
extern _X_EXPORT PixmapPtr glamor_create_pixmap(ScreenPtr screen, int w, int h,
int depth, unsigned int usage);
extern _X_EXPORT Bool glamor_destroy_pixmap(PixmapPtr pixmap);
#define GLAMOR_CREATE_PIXMAP_CPU 0x100
#define GLAMOR_CREATE_PIXMAP_FIXUP 0x101
#define GLAMOR_CREATE_FBO_NO_FBO 0x103
#define GLAMOR_CREATE_NO_LARGE 0x105
#define GLAMOR_CREATE_PIXMAP_NO_TEXTURE 0x106
/* @glamor_egl_exchange_buffers: Exchange the underlying buffers(KHR image,fbo).
*
* @front: front pixmap.
* @back: back pixmap.
*
* Used by the DRI2 page flip. This function will exchange the KHR images and
* fbos of the two pixmaps.
* */
extern _X_EXPORT void glamor_egl_exchange_buffers(PixmapPtr front,
PixmapPtr back);
extern _X_EXPORT void glamor_pixmap_exchange_fbos(PixmapPtr front,
PixmapPtr back);
/* The DDX is not supposed to call these three functions */
extern _X_EXPORT void glamor_enable_dri3(ScreenPtr screen);
extern _X_EXPORT int glamor_egl_dri3_fd_name_from_tex(ScreenPtr, PixmapPtr,
unsigned int, Bool,
CARD16 *, CARD32 *);
extern _X_EXPORT struct gbm_device *glamor_egl_get_gbm_device(ScreenPtr screen);
/* @glamor_supports_pixmap_import_export: Returns whether
* glamor_fd_from_pixmap(), glamor_name_from_pixmap(), and
* glamor_pixmap_from_fd() are supported.
*
* @screen: Current screen pointer.
*
* To have DRI3 support enabled, glamor and glamor_egl need to be
* initialized. glamor also has to be compiled with gbm support.
*
* The EGL layer needs to have the following extensions working:
*
* .EGL_KHR_gl_texture_2D_image
* .EGL_EXT_image_dma_buf_import
* */
extern _X_EXPORT Bool glamor_supports_pixmap_import_export(ScreenPtr screen);
/* @glamor_fd_from_pixmap: Get a dma-buf fd from a pixmap.
*
* @screen: Current screen pointer.
* @pixmap: The pixmap from which we want the fd.
* @stride, @size: Pointers to fill the stride and size of the
* buffer associated to the fd.
*
* the pixmap and the buffer associated by the fd will share the same
* content.
* Returns the fd on success, -1 on error.
* */
extern _X_EXPORT int glamor_fd_from_pixmap(ScreenPtr screen,
PixmapPtr pixmap,
CARD16 *stride, CARD32 *size);
/**
* @glamor_name_from_pixmap: Gets a gem name from a pixmap.
*
* @pixmap: The pixmap from which we want the gem name.
*
* the pixmap and the buffer associated by the gem name will share the
* same content. This function can be used by the DDX to support DRI2,
* and needs the same set of buffer export GL extensions as DRI3
* support.
*
* Returns the name on success, -1 on error.
* */
extern _X_EXPORT int glamor_name_from_pixmap(PixmapPtr pixmap,
CARD16 *stride, CARD32 *size);
/* @glamor_gbm_bo_from_pixmap: Get a GBM bo from a pixmap.
*
* @screen: Current screen pointer.
* @pixmap: The pixmap from which we want the fd.
* @stride, @size: Pointers to fill the stride and size of the
* buffer associated to the fd.
*
* the pixmap and the buffer represented by the gbm_bo will share the same
* content.
*
* Returns the gbm_bo on success, NULL on error.
* */
extern _X_EXPORT struct gbm_bo *glamor_gbm_bo_from_pixmap(ScreenPtr screen,
PixmapPtr pixmap);
/* @glamor_pixmap_from_fd: Creates a pixmap to wrap a dma-buf fd.
*
* @screen: Current screen pointer.
* @fd: The dma-buf fd to import.
* @width: The width of the buffer.
* @height: The height of the buffer.
* @stride: The stride of the buffer.
* @depth: The depth of the buffer.
* @bpp: The number of bpp of the buffer.
*
* Returns a valid pixmap if the import succeeded, else NULL.
* */
extern _X_EXPORT PixmapPtr glamor_pixmap_from_fd(ScreenPtr screen,
int fd,
CARD16 width,
CARD16 height,
CARD16 stride,
CARD8 depth,
CARD8 bpp);
/* @glamor_back_pixmap_from_fd: Backs an existing pixmap with a dma-buf fd.
*
* @pixmap: Pixmap to change backing for
* @fd: The dma-buf fd to import.
* @width: The width of the buffer.
* @height: The height of the buffer.
* @stride: The stride of the buffer.
* @depth: The depth of the buffer.
* @bpp: The number of bpp of the buffer.
*
* Returns TRUE if successful, FALSE on failure.
* */
extern _X_EXPORT Bool glamor_back_pixmap_from_fd(PixmapPtr pixmap,
int fd,
CARD16 width,
CARD16 height,
CARD16 stride,
CARD8 depth,
CARD8 bpp);
#ifdef GLAMOR_FOR_XORG
#define GLAMOR_EGL_MODULE_NAME "glamoregl"
/* @glamor_egl_init: Initialize EGL environment.
*
* @scrn: Current screen info pointer.
* @fd: Current drm fd.
*
* This function creates and intialize EGL contexts.
* Should be called from DDX's preInit function.
* Return TRUE if success, otherwise return FALSE.
* */
extern _X_EXPORT Bool glamor_egl_init(ScrnInfoPtr scrn, int fd);
extern _X_EXPORT Bool glamor_egl_init_textured_pixmap(ScreenPtr screen);
/* @glamor_egl_create_textured_screen: Create textured screen pixmap.
*
* @screen: screen pointer to be processed.
* @handle: screen pixmap's BO handle.
* @stride: screen pixmap's stride in bytes.
*
* This function is similar with the create_textured_pixmap. As the
* screen pixmap is a special, we handle it separately in this function.
*/
extern _X_EXPORT Bool glamor_egl_create_textured_screen(ScreenPtr screen,
int handle, int stride);
/* @glamor_egl_create_textured_screen_ext:
*
* extent one parameter to track the pointer of the DDX layer's back pixmap.
* We need this pointer during the closing screen stage. As before back to
* the DDX's close screen, we have to free all the glamor related resources.
*/
extern _X_EXPORT Bool glamor_egl_create_textured_screen_ext(ScreenPtr screen,
int handle,
int stride,
PixmapPtr
*back_pixmap);
/*
* @glamor_egl_create_textured_pixmap: Try to create a textured pixmap from
* a BO handle.
*
* @pixmap: The pixmap need to be processed.
* @handle: The BO's handle attached to this pixmap at DDX layer.
* @stride: Stride in bytes for this pixmap.
*
* This function try to create a texture from the handle and attach
* the texture to the pixmap , thus glamor can render to this pixmap
* as well. Return true if successful, otherwise return FALSE.
*/
extern _X_EXPORT Bool glamor_egl_create_textured_pixmap(PixmapPtr pixmap,
int handle, int stride);
/*
* @glamor_egl_create_textured_pixmap_from_bo: Try to create a textured pixmap
* from a gbm_bo.
*
* @pixmap: The pixmap need to be processed.
* @bo: a pointer on a gbm_bo structure attached to this pixmap at DDX layer.
*
* This function is similar to glamor_egl_create_textured_pixmap.
*/
extern _X_EXPORT Bool
glamor_egl_create_textured_pixmap_from_gbm_bo(PixmapPtr pixmap,
struct gbm_bo *bo);
#endif
extern _X_EXPORT void glamor_egl_screen_init(ScreenPtr screen,
struct glamor_context *glamor_ctx);
extern _X_EXPORT int glamor_create_gc(GCPtr gc);
extern _X_EXPORT void glamor_validate_gc(GCPtr gc, unsigned long changes,
DrawablePtr drawable);
extern _X_EXPORT void glamor_destroy_gc(GCPtr gc);
#define HAS_GLAMOR_DESTROY_GC 1
extern Bool _X_EXPORT glamor_change_window_attributes(WindowPtr pWin, unsigned long mask);
extern void _X_EXPORT glamor_copy_window(WindowPtr window, DDXPointRec old_origin, RegionPtr src_region);
extern _X_EXPORT void glamor_finish(ScreenPtr screen);
#define HAS_GLAMOR_TEXT 1
#ifdef GLAMOR_FOR_XORG
extern _X_EXPORT XF86VideoAdaptorPtr glamor_xv_init(ScreenPtr pScreen,
int num_texture_ports);
#endif
#endif /* GLAMOR_H */
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