diff options
Diffstat (limited to 'src/gallium/state_trackers/dri/drm/dri2.c')
| -rw-r--r-- | src/gallium/state_trackers/dri/drm/dri2.c | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/dri/drm/dri2.c b/src/gallium/state_trackers/dri/drm/dri2.c new file mode 100644 index 00000000000..108b18e9d3c --- /dev/null +++ b/src/gallium/state_trackers/dri/drm/dri2.c @@ -0,0 +1,413 @@ +/* + * Mesa 3-D graphics library + * Version: 7.9 + * + * Copyright 2009, VMware, Inc. + * All Rights Reserved. + * Copyright (C) 2010 LunarG Inc. + * + * 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 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 + * BRIAN PAUL 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: + * Keith Whitwell <[email protected]> + * Jakob Bornecrantz <[email protected]> + * Chia-I Wu <[email protected]> + */ + +#include "util/u_memory.h" +#include "util/u_inlines.h" +#include "util/u_format.h" +#include "util/u_debug.h" +#include "state_tracker/drm_api.h" + +#include "dri_screen.h" +#include "dri_context.h" +#include "dri_drawable.h" +#include "dri_st_api.h" +#include "dri2.h" + +/** + * DRI2 flush extension. + */ +static void +dri2_flush_drawable(__DRIdrawable *draw) +{ +} + +static void +dri2_invalidate_drawable(__DRIdrawable *dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + struct dri_context *ctx = dri_context(dPriv->driContextPriv); + + dri2InvalidateDrawable(dPriv); + drawable->dPriv->lastStamp = *drawable->dPriv->pStamp; + + if (ctx) + ctx->st->notify_invalid_framebuffer(ctx->st, drawable->stfb); +} + +static const __DRI2flushExtension dri2FlushExtension = { + { __DRI2_FLUSH, __DRI2_FLUSH_VERSION }, + dri2_flush_drawable, + dri2_invalidate_drawable, +}; + +/** + * These are used for GLX_EXT_texture_from_pixmap + */ +static void +dri2_set_tex_buffer2(__DRIcontext *pDRICtx, GLint target, + GLint format, __DRIdrawable *dPriv) +{ + struct dri_context *ctx = dri_context(pDRICtx); + struct dri_drawable *drawable = dri_drawable(dPriv); + struct pipe_texture *pt; + + dri_st_framebuffer_validate_att(drawable->stfb, ST_ATTACHMENT_FRONT_LEFT); + + pt = drawable->textures[ST_ATTACHMENT_FRONT_LEFT]; + + if (pt) { + ctx->st->teximage(ctx->st, + (target == GL_TEXTURE_2D) ? ST_TEXTURE_2D : ST_TEXTURE_RECT, + 0, drawable->stvis.color_format, pt, FALSE); + } +} + +static void +dri2_set_tex_buffer(__DRIcontext *pDRICtx, GLint target, + __DRIdrawable *dPriv) +{ + dri2_set_tex_buffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv); +} + +static const __DRItexBufferExtension dri2TexBufferExtension = { + { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION }, + dri2_set_tex_buffer, + dri2_set_tex_buffer2, +}; + +/** + * Get the format of an attachment. + */ +static INLINE enum pipe_format +dri2_drawable_get_format(struct dri_drawable *drawable, + enum st_attachment_type statt) +{ + enum pipe_format format; + + switch (statt) { + case ST_ATTACHMENT_FRONT_LEFT: + case ST_ATTACHMENT_BACK_LEFT: + case ST_ATTACHMENT_FRONT_RIGHT: + case ST_ATTACHMENT_BACK_RIGHT: + format = drawable->stvis.color_format; + break; + case ST_ATTACHMENT_DEPTH_STENCIL: + format = drawable->stvis.depth_stencil_format; + break; + default: + format = PIPE_FORMAT_NONE; + break; + } + + return format; +} + +/** + * Retrieve __DRIbuffer from the DRI loader. + */ +static __DRIbuffer * +dri2_drawable_get_buffers(struct dri_drawable *drawable, + const enum st_attachment_type *statts, + unsigned *count) +{ + __DRIdrawable *dri_drawable = drawable->dPriv; + struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader; + boolean with_format; + __DRIbuffer *buffers; + int num_buffers; + unsigned attachments[10]; + unsigned num_attachments, i; + + assert(loader); + with_format = dri_with_format(drawable->sPriv); + + num_attachments = 0; + + /* for Xserver 1.6.0 (DRI2 version 1) we always need to ask for the front */ + if (!with_format) + attachments[num_attachments++] = __DRI_BUFFER_FRONT_LEFT; + + for (i = 0; i < *count; i++) { + enum pipe_format format; + int att, bpp; + + format = dri2_drawable_get_format(drawable, statts[i]); + if (format == PIPE_FORMAT_NONE) + continue; + + switch (statts[i]) { + case ST_ATTACHMENT_FRONT_LEFT: + /* already added */ + if (!with_format) + continue; + att = __DRI_BUFFER_FRONT_LEFT; + break; + case ST_ATTACHMENT_BACK_LEFT: + att = __DRI_BUFFER_BACK_LEFT; + break; + case ST_ATTACHMENT_FRONT_RIGHT: + att = __DRI_BUFFER_FRONT_RIGHT; + break; + case ST_ATTACHMENT_BACK_RIGHT: + att = __DRI_BUFFER_BACK_RIGHT; + break; + case ST_ATTACHMENT_DEPTH_STENCIL: + att = __DRI_BUFFER_DEPTH_STENCIL; + break; + default: + att = -1; + break; + } + + bpp = util_format_get_blocksizebits(format); + + if (att >= 0) { + attachments[num_attachments++] = att; + if (with_format) { + attachments[num_attachments++] = bpp; + } + } + } + + if (with_format) { + num_attachments /= 2; + buffers = loader->getBuffersWithFormat(dri_drawable, + &dri_drawable->w, &dri_drawable->h, + attachments, num_attachments, + &num_buffers, dri_drawable->loaderPrivate); + } + else { + buffers = loader->getBuffers(dri_drawable, + &dri_drawable->w, &dri_drawable->h, + attachments, num_attachments, + &num_buffers, dri_drawable->loaderPrivate); + } + + if (buffers) { + /* set one cliprect to cover the whole dri_drawable */ + dri_drawable->x = 0; + dri_drawable->y = 0; + dri_drawable->backX = 0; + dri_drawable->backY = 0; + dri_drawable->numClipRects = 1; + dri_drawable->pClipRects[0].x1 = 0; + dri_drawable->pClipRects[0].y1 = 0; + dri_drawable->pClipRects[0].x2 = dri_drawable->w; + dri_drawable->pClipRects[0].y2 = dri_drawable->h; + dri_drawable->numBackClipRects = 1; + dri_drawable->pBackClipRects[0].x1 = 0; + dri_drawable->pBackClipRects[0].y1 = 0; + dri_drawable->pBackClipRects[0].x2 = dri_drawable->w; + dri_drawable->pBackClipRects[0].y2 = dri_drawable->h; + + *count = num_buffers; + } + + return buffers; +} + +/** + * Process __DRIbuffer and convert them into pipe_textures. + */ +static void +dri2_drawable_process_buffers(struct dri_drawable *drawable, + __DRIbuffer *buffers, unsigned count) +{ + struct dri_screen *screen = dri_screen(drawable->sPriv); + __DRIdrawable *dri_drawable = drawable->dPriv; + struct pipe_texture templ; + struct winsys_handle whandle; + boolean have_depth = FALSE; + unsigned i; + + if (drawable->old_num == count && + drawable->old_w == dri_drawable->w && + drawable->old_h == dri_drawable->h && + memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0) + return; + + for (i = 0; i < ST_ATTACHMENT_COUNT; i++) + pipe_texture_reference(&drawable->textures[i], NULL); + + memset(&templ, 0, sizeof(templ)); + templ.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET; + templ.target = PIPE_TEXTURE_2D; + templ.last_level = 0; + templ.width0 = dri_drawable->w; + templ.height0 = dri_drawable->h; + templ.depth0 = 1; + + memset(&whandle, 0, sizeof(whandle)); + + for (i = 0; i < count; i++) { + __DRIbuffer *buf = &buffers[i]; + enum st_attachment_type statt; + enum pipe_format format; + + switch (buf->attachment) { + case __DRI_BUFFER_FRONT_LEFT: + if (!screen->auto_fake_front) { + statt = ST_ATTACHMENT_INVALID; + break; + } + /* fallthrough */ + case __DRI_BUFFER_FAKE_FRONT_LEFT: + statt = ST_ATTACHMENT_FRONT_LEFT; + break; + case __DRI_BUFFER_BACK_LEFT: + statt = ST_ATTACHMENT_BACK_LEFT; + break; + case __DRI_BUFFER_DEPTH: + case __DRI_BUFFER_DEPTH_STENCIL: + case __DRI_BUFFER_STENCIL: + /* use only the first depth/stencil buffer */ + if (!have_depth) { + have_depth = TRUE; + statt = ST_ATTACHMENT_DEPTH_STENCIL; + } + else { + statt = ST_ATTACHMENT_INVALID; + } + break; + default: + statt = ST_ATTACHMENT_INVALID; + break; + } + + format = dri2_drawable_get_format(drawable, statt); + if (statt == ST_ATTACHMENT_INVALID || format == PIPE_FORMAT_NONE) + continue; + + templ.format = format; + whandle.handle = buf->name; + whandle.stride = buf->pitch; + + drawable->textures[statt] = + screen->pipe_screen->texture_from_handle(screen->pipe_screen, + &templ, &whandle); + } + + drawable->old_num = count; + drawable->old_w = dri_drawable->w; + drawable->old_h = dri_drawable->h; + memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count); +} + +/* + * Backend functions for st_framebuffer interface. + */ + +void +dri2_allocate_textures(struct dri_drawable *drawable, + const enum st_attachment_type *statts, + unsigned count) +{ + __DRIbuffer *buffers; + unsigned num_buffers = count; + + buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers); + dri2_drawable_process_buffers(drawable, buffers, num_buffers); +} + +void +dri2_flush_frontbuffer(struct dri_drawable *drawable, + enum st_attachment_type statt) +{ + __DRIdrawable *dri_drawable = drawable->dPriv; + struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader; + + if (loader->flushFrontBuffer == NULL) + return; + + if (statt == ST_ATTACHMENT_FRONT_LEFT) { + loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate); + } +} + +/* + * Backend function init_screen. + */ + +static const __DRIextension *dri_screen_extensions[] = { + &driReadDrawableExtension, + &driCopySubBufferExtension.base, + &driSwapControlExtension.base, + &driFrameTrackingExtension.base, + &driMediaStreamCounterExtension.base, + &dri2TexBufferExtension.base, + &dri2FlushExtension.base, + NULL +}; + +/** + * This is the driver specific part of the createNewScreen entry point. + * + * Returns the __GLcontextModes supported by this driver. + */ +const __DRIconfig ** +dri2_init_screen(__DRIscreen * sPriv) +{ + struct dri_screen *screen; + struct drm_create_screen_arg arg; + + screen = CALLOC_STRUCT(dri_screen); + if (!screen) + return NULL; + + screen->api = drm_api_create(); + screen->sPriv = sPriv; + screen->fd = sPriv->fd; + sPriv->private = (void *)screen; + sPriv->extensions = dri_screen_extensions; + arg.mode = DRM_CREATE_NORMAL; + + screen->pipe_screen = screen->api->create_screen(screen->api, screen->fd, &arg); + if (!screen->pipe_screen) { + debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__); + goto fail; + } + + screen->smapi = dri_create_st_manager(screen); + if (!screen->smapi) + goto fail; + + driParseOptionInfo(&screen->optionCache, + __driConfigOptions, __driNConfigOptions); + + screen->auto_fake_front = dri_with_format(sPriv); + + return dri_fill_in_modes(screen, 32); +fail: + dri_destroy_screen(sPriv); + return NULL; +} + +/* vim: set sw=3 ts=8 sts=3 expandtab: */ |