/************************************************************************** * * Copyright 2009, VMware, Inc. * All Rights Reserved. * Copyright 2010 George Sapountzis <gsapountzis@gmail.com> * * 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, sub license, 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 NON-INFRINGEMENT. * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. * **************************************************************************/ /* TODO: * * xshm / EGLImage: * * Allow the loaders to use the XSHM extension. It probably requires callbacks * for createImage/destroyImage similar to DRI2 getBuffers. */ #include "util/u_format.h" #include "util/u_memory.h" #include "util/u_inlines.h" #include "util/u_box.h" #include "pipe/p_context.h" #include "pipe-loader/pipe_loader.h" #include "state_tracker/drisw_api.h" #include "state_tracker/st_context.h" #include "dri_screen.h" #include "dri_context.h" #include "dri_drawable.h" #include "dri_helpers.h" #include "dri_query_renderer.h" DEBUG_GET_ONCE_BOOL_OPTION(swrast_no_present, "SWRAST_NO_PRESENT", FALSE); static boolean swrast_no_present = FALSE; static inline void get_drawable_info(__DRIdrawable *dPriv, int *x, int *y, int *w, int *h) { __DRIscreen *sPriv = dPriv->driScreenPriv; const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader; loader->getDrawableInfo(dPriv, x, y, w, h, dPriv->loaderPrivate); } static inline void put_image(__DRIdrawable *dPriv, void *data, unsigned width, unsigned height) { __DRIscreen *sPriv = dPriv->driScreenPriv; const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader; loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP, 0, 0, width, height, data, dPriv->loaderPrivate); } static inline void put_image2(__DRIdrawable *dPriv, void *data, int x, int y, unsigned width, unsigned height, unsigned stride) { __DRIscreen *sPriv = dPriv->driScreenPriv; const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader; loader->putImage2(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP, x, y, width, height, stride, data, dPriv->loaderPrivate); } static inline void get_image(__DRIdrawable *dPriv, int x, int y, int width, int height, void *data) { __DRIscreen *sPriv = dPriv->driScreenPriv; const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader; loader->getImage(dPriv, x, y, width, height, data, dPriv->loaderPrivate); } static inline void get_image2(__DRIdrawable *dPriv, int x, int y, int width, int height, int stride, void *data) { __DRIscreen *sPriv = dPriv->driScreenPriv; const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader; /* getImage2 support is only in version 3 or newer */ if (loader->base.version < 3) return; loader->getImage2(dPriv, x, y, width, height, stride, data, dPriv->loaderPrivate); } static void drisw_update_drawable_info(struct dri_drawable *drawable) { __DRIdrawable *dPriv = drawable->dPriv; int x, y; get_drawable_info(dPriv, &x, &y, &dPriv->w, &dPriv->h); } static void drisw_get_image(struct dri_drawable *drawable, int x, int y, unsigned width, unsigned height, unsigned stride, void *data) { __DRIdrawable *dPriv = drawable->dPriv; int draw_x, draw_y, draw_w, draw_h; get_drawable_info(dPriv, &draw_x, &draw_y, &draw_w, &draw_h); get_image2(dPriv, x, y, draw_w, draw_h, stride, data); } static void drisw_put_image(struct dri_drawable *drawable, void *data, unsigned width, unsigned height) { __DRIdrawable *dPriv = drawable->dPriv; put_image(dPriv, data, width, height); } static void drisw_put_image2(struct dri_drawable *drawable, void *data, int x, int y, unsigned width, unsigned height, unsigned stride) { __DRIdrawable *dPriv = drawable->dPriv; put_image2(dPriv, data, x, y, width, height, stride); } static inline void drisw_present_texture(__DRIdrawable *dPriv, struct pipe_resource *ptex, struct pipe_box *sub_box) { struct dri_drawable *drawable = dri_drawable(dPriv); struct dri_screen *screen = dri_screen(drawable->sPriv); if (swrast_no_present) return; screen->base.screen->flush_frontbuffer(screen->base.screen, ptex, 0, 0, drawable, sub_box); } static inline void drisw_invalidate_drawable(__DRIdrawable *dPriv) { struct dri_drawable *drawable = dri_drawable(dPriv); drawable->texture_stamp = dPriv->lastStamp - 1; p_atomic_inc(&drawable->base.stamp); } static inline void drisw_copy_to_front(__DRIdrawable * dPriv, struct pipe_resource *ptex) { drisw_present_texture(dPriv, ptex, NULL); drisw_invalidate_drawable(dPriv); } /* * Backend functions for st_framebuffer interface and swap_buffers. */ static void drisw_swap_buffers(__DRIdrawable *dPriv) { struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv); struct dri_drawable *drawable = dri_drawable(dPriv); struct pipe_resource *ptex; if (!ctx) return; ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT]; if (ptex) { if (ctx->pp) pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]); ctx->st->flush(ctx->st, ST_FLUSH_FRONT, NULL); drisw_copy_to_front(dPriv, ptex); } } static void drisw_copy_sub_buffer(__DRIdrawable *dPriv, int x, int y, int w, int h) { struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv); struct dri_drawable *drawable = dri_drawable(dPriv); struct pipe_resource *ptex; struct pipe_box box; if (!ctx) return; ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT]; if (ptex) { if (ctx->pp && drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]) pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]); ctx->st->flush(ctx->st, ST_FLUSH_FRONT, NULL); u_box_2d(x, dPriv->h - y - h, w, h, &box); drisw_present_texture(dPriv, ptex, &box); } } static void drisw_flush_frontbuffer(struct dri_context *ctx, struct dri_drawable *drawable, enum st_attachment_type statt) { struct pipe_resource *ptex; if (!ctx) return; ptex = drawable->textures[statt]; if (ptex) { drisw_copy_to_front(ctx->dPriv, ptex); } } /** * Allocate framebuffer attachments. * * During fixed-size operation, the function keeps allocating new attachments * as they are requested. Unused attachments are not removed, not until the * framebuffer is resized or destroyed. */ static void drisw_allocate_textures(struct dri_context *stctx, struct dri_drawable *drawable, const enum st_attachment_type *statts, unsigned count) { struct dri_screen *screen = dri_screen(drawable->sPriv); const __DRIswrastLoaderExtension *loader = drawable->dPriv->driScreenPriv->swrast_loader; struct pipe_resource templ; unsigned width, height; boolean resized; unsigned i; width = drawable->dPriv->w; height = drawable->dPriv->h; resized = (drawable->old_w != width || drawable->old_h != height); /* remove outdated textures */ if (resized) { for (i = 0; i < ST_ATTACHMENT_COUNT; i++) pipe_resource_reference(&drawable->textures[i], NULL); } memset(&templ, 0, sizeof(templ)); templ.target = screen->target; templ.width0 = width; templ.height0 = height; templ.depth0 = 1; templ.array_size = 1; templ.last_level = 0; for (i = 0; i < count; i++) { enum pipe_format format; unsigned bind; /* the texture already exists or not requested */ if (drawable->textures[statts[i]]) continue; dri_drawable_get_format(drawable, statts[i], &format, &bind); /* if we don't do any present, no need for display targets */ if (statts[i] != ST_ATTACHMENT_DEPTH_STENCIL && !swrast_no_present) bind |= PIPE_BIND_DISPLAY_TARGET; if (format == PIPE_FORMAT_NONE) continue; templ.format = format; templ.bind = bind; if (statts[i] == ST_ATTACHMENT_FRONT_LEFT && screen->base.screen->resource_create_front && loader->base.version >= 3) { drawable->textures[statts[i]] = screen->base.screen->resource_create_front(screen->base.screen, &templ, (const void *)drawable); } else drawable->textures[statts[i]] = screen->base.screen->resource_create(screen->base.screen, &templ); } drawable->old_w = width; drawable->old_h = height; } static void drisw_update_tex_buffer(struct dri_drawable *drawable, struct dri_context *ctx, struct pipe_resource *res) { __DRIdrawable *dPriv = drawable->dPriv; struct st_context *st_ctx = (struct st_context *)ctx->st; struct pipe_context *pipe = st_ctx->pipe; struct pipe_transfer *transfer; char *map; int x, y, w, h; int ximage_stride, line; int cpp = util_format_get_blocksize(res->format); get_drawable_info(dPriv, &x, &y, &w, &h); map = pipe_transfer_map(pipe, res, 0, 0, // level, layer, PIPE_TRANSFER_WRITE, x, y, w, h, &transfer); /* Copy the Drawable content to the mapped texture buffer */ get_image(dPriv, x, y, w, h, map); /* The pipe transfer has a pitch rounded up to the nearest 64 pixels. get_image() has a pitch rounded up to 4 bytes. */ ximage_stride = ((w * cpp) + 3) & -4; for (line = h-1; line; --line) { memmove(&map[line * transfer->stride], &map[line * ximage_stride], ximage_stride); } pipe_transfer_unmap(pipe, transfer); } static __DRIimageExtension driSWImageExtension = { .base = { __DRI_IMAGE, 6 }, .createImageFromRenderbuffer = dri2_create_image_from_renderbuffer, .createImageFromTexture = dri2_create_from_texture, .destroyImage = dri2_destroy_image, }; /* * Backend function for init_screen. */ static const __DRIextension *drisw_screen_extensions[] = { &driTexBufferExtension.base, &dri2RendererQueryExtension.base, &dri2ConfigQueryExtension.base, &dri2FenceExtension.base, &dri2NoErrorExtension.base, &driSWImageExtension.base, NULL }; static struct drisw_loader_funcs drisw_lf = { .get_image = drisw_get_image, .put_image = drisw_put_image, .put_image2 = drisw_put_image2 }; static const __DRIconfig ** drisw_init_screen(__DRIscreen * sPriv) { const __DRIconfig **configs; struct dri_screen *screen; struct pipe_screen *pscreen = NULL; screen = CALLOC_STRUCT(dri_screen); if (!screen) return NULL; screen->sPriv = sPriv; screen->fd = -1; swrast_no_present = debug_get_option_swrast_no_present(); sPriv->driverPrivate = (void *)screen; sPriv->extensions = drisw_screen_extensions; if (pipe_loader_sw_probe_dri(&screen->dev, &drisw_lf)) { dri_init_options(screen); pscreen = pipe_loader_create_screen(screen->dev); } if (!pscreen) goto fail; configs = dri_init_screen_helper(screen, pscreen); if (!configs) goto fail; screen->lookup_egl_image = dri2_lookup_egl_image; return configs; fail: dri_destroy_screen_helper(screen); if (screen->dev) pipe_loader_release(&screen->dev, 1); FREE(screen); return NULL; } static boolean drisw_create_buffer(__DRIscreen * sPriv, __DRIdrawable * dPriv, const struct gl_config * visual, boolean isPixmap) { struct dri_drawable *drawable = NULL; if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap)) return FALSE; drawable = dPriv->driverPrivate; drawable->allocate_textures = drisw_allocate_textures; drawable->update_drawable_info = drisw_update_drawable_info; drawable->flush_frontbuffer = drisw_flush_frontbuffer; drawable->update_tex_buffer = drisw_update_tex_buffer; return TRUE; } /** * DRI driver virtual function table. * * DRI versions differ in their implementation of init_screen and swap_buffers. */ const struct __DriverAPIRec galliumsw_driver_api = { .InitScreen = drisw_init_screen, .DestroyScreen = dri_destroy_screen, .CreateContext = dri_create_context, .DestroyContext = dri_destroy_context, .CreateBuffer = drisw_create_buffer, .DestroyBuffer = dri_destroy_buffer, .SwapBuffers = drisw_swap_buffers, .MakeCurrent = dri_make_current, .UnbindContext = dri_unbind_context, .CopySubBuffer = drisw_copy_sub_buffer, }; /* This is the table of extensions that the loader will dlsym() for. */ const __DRIextension *galliumsw_driver_extensions[] = { &driCoreExtension.base, &driSWRastExtension.base, &driCopySubBufferExtension.base, &gallium_config_options.base, NULL }; /* vim: set sw=3 ts=8 sts=3 expandtab: */