diff options
Diffstat (limited to 'src/gallium/frontends/dri/drisw.c')
| -rw-r--r-- | src/gallium/frontends/dri/drisw.c | 576 |
1 files changed, 576 insertions, 0 deletions
diff --git a/src/gallium/frontends/dri/drisw.c b/src/gallium/frontends/dri/drisw.c new file mode 100644 index 00000000000..fcdc59ceec8 --- /dev/null +++ b/src/gallium/frontends/dri/drisw.c @@ -0,0 +1,576 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +#include "util/format/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 "frontend/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 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 +put_image_shm(__DRIdrawable *dPriv, int shmid, char *shmaddr, + unsigned offset, unsigned offset_x, int x, int y, + unsigned width, unsigned height, unsigned stride) +{ + __DRIscreen *sPriv = dPriv->driScreenPriv; + const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader; + + /* if we have the newer interface, don't have to add the offset_x here. */ + if (loader->base.version > 4 && loader->putImageShm2) + loader->putImageShm2(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP, + x, y, width, height, stride, + shmid, shmaddr, offset, dPriv->loaderPrivate); + else + loader->putImageShm(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP, + x, y, width, height, stride, + shmid, shmaddr, offset + offset_x, 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 inline bool +get_image_shm(__DRIdrawable *dPriv, int x, int y, int width, int height, + struct pipe_resource *res) +{ + __DRIscreen *sPriv = dPriv->driScreenPriv; + const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader; + struct winsys_handle whandle; + + whandle.type = WINSYS_HANDLE_TYPE_SHMID; + + if (loader->base.version < 4 || !loader->getImageShm) + return FALSE; + + if (!res->screen->resource_get_handle(res->screen, NULL, res, &whandle, PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE)) + return FALSE; + + if (loader->base.version > 5 && loader->getImageShm2) + return loader->getImageShm2(dPriv, x, y, width, height, whandle.handle, dPriv->loaderPrivate); + + loader->getImageShm(dPriv, x, y, width, height, whandle.handle, dPriv->loaderPrivate); + return TRUE; +} + +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_put_image_shm(struct dri_drawable *drawable, + int shmid, char *shmaddr, unsigned offset, + unsigned offset_x, + int x, int y, unsigned width, unsigned height, + unsigned stride) +{ + __DRIdrawable *dPriv = drawable->dPriv; + + put_image_shm(dPriv, shmid, shmaddr, offset, offset_x, 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 (screen->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]); + + if (ctx->hud) + hud_run(ctx->hud, ctx->st->cso_context, ptex); + + ctx->st->flush(ctx->st, ST_FLUSH_FRONT, NULL, NULL, NULL); + + if (drawable->stvis.samples > 1) { + /* Resolve the back buffer. */ + dri_pipe_blit(ctx->st->pipe, + drawable->textures[ST_ATTACHMENT_BACK_LEFT], + drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]); + } + + 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, NULL, 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; + + if (drawable->stvis.samples > 1) { + /* Resolve the front buffer. */ + dri_pipe_blit(ctx->st->pipe, + drawable->textures[ST_ATTACHMENT_FRONT_LEFT], + drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT]); + } + 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); + pipe_resource_reference(&drawable->msaa_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 && !screen->swrast_no_present) + bind |= PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_LINEAR; + + if (format == PIPE_FORMAT_NONE) + continue; + + templ.format = format; + templ.bind = bind; + templ.nr_samples = 0; + templ.nr_storage_samples = 0; + + 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); + + if (drawable->stvis.samples > 1) { + templ.bind = templ.bind & + ~(PIPE_BIND_SCANOUT | PIPE_BIND_SHARED | PIPE_BIND_DISPLAY_TARGET); + templ.nr_samples = drawable->stvis.samples; + templ.nr_storage_samples = drawable->stvis.samples; + drawable->msaa_textures[statts[i]] = + screen->base.screen->resource_create(screen->base.screen, &templ); + + dri_pipe_blit(stctx->st->pipe, + drawable->msaa_textures[statts[i]], + drawable->textures[statts[i]]); + } + } + + 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 */ + if (!get_image_shm(dPriv, x, y, w, h, res)) + 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, + &dri2FlushControlExtension.base, + NULL +}; + +static const struct drisw_loader_funcs drisw_lf = { + .get_image = drisw_get_image, + .put_image = drisw_put_image, + .put_image2 = drisw_put_image2 +}; + +static const struct drisw_loader_funcs drisw_shm_lf = { + .get_image = drisw_get_image, + .put_image = drisw_put_image, + .put_image2 = drisw_put_image2, + .put_image_shm = drisw_put_image_shm +}; + +static const __DRIconfig ** +drisw_init_screen(__DRIscreen * sPriv) +{ + const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader; + const __DRIconfig **configs; + struct dri_screen *screen; + struct pipe_screen *pscreen = NULL; + const struct drisw_loader_funcs *lf = &drisw_lf; + + screen = CALLOC_STRUCT(dri_screen); + if (!screen) + return NULL; + + screen->sPriv = sPriv; + screen->fd = -1; + + screen->swrast_no_present = debug_get_option_swrast_no_present(); + + sPriv->driverPrivate = (void *)screen; + sPriv->extensions = drisw_screen_extensions; + if (loader->base.version >= 4) { + if (loader->putImageShm) + lf = &drisw_shm_lf; + } + + if (pipe_loader_sw_probe_dri(&screen->dev, 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: */ |