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