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IABSD.fr/xenocara/xserver/glamor/glamor.h
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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_shareable_fd_from_pixmap: Get a dma-buf fd suitable for sharing * with other GPUs 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 returned fd will point to a buffer which is suitable for sharing * across GPUs (not using GPU specific tiling). * The pixmap and the buffer associated by the fd will share the same * content. * The pixmap's stride may be modified by this function. * Returns the fd on success, -1 on error. * */ extern _X_EXPORT int glamor_shareable_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 */