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Diffstat (limited to 'src/gallium/state_trackers/dri/drm/dri2.c')
-rw-r--r--src/gallium/state_trackers/dri/drm/dri2.c539
1 files changed, 539 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 0000000000..0d15b5c9b8
--- /dev/null
+++ b/src/gallium/state_trackers/dri/drm/dri2.c
@@ -0,0 +1,539 @@
+/*
+ * 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 <keithw@vmware.com>
+ * Jakob Bornecrantz <wallbraker@gmail.com>
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#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_resource *pt;
+
+ dri_st_framebuffer_validate_att(drawable->stfb, ST_ATTACHMENT_FRONT_LEFT);
+
+ pt = drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
+
+ if (pt) {
+ enum pipe_format internal_format = pt->format;
+
+ if (format == __DRI_TEXTURE_FORMAT_RGB) {
+ /* only need to cover the formats recognized by dri_fill_st_visual */
+ switch (internal_format) {
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ internal_format = PIPE_FORMAT_B8G8R8X8_UNORM;
+ break;
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ internal_format = PIPE_FORMAT_X8R8G8B8_UNORM;
+ break;
+ default:
+ break;
+ }
+ }
+
+ ctx->st->teximage(ctx->st,
+ (target == GL_TEXTURE_2D) ? ST_TEXTURE_2D : ST_TEXTURE_RECT,
+ 0, internal_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_resources.
+ */
+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_resource 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_resource_reference(&drawable->textures[i], NULL);
+
+ memset(&templ, 0, sizeof(templ));
+ templ.bind = PIPE_BIND_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->resource_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);
+ }
+}
+
+__DRIimage *
+dri2_lookup_egl_image(struct dri_context *ctx, void *handle)
+{
+ __DRIimageLookupExtension *loader = ctx->sPriv->dri2.image;
+ __DRIimage *img;
+
+ if (!loader->lookupEGLImage)
+ return NULL;
+
+ img = loader->lookupEGLImage(ctx->cPriv, handle, ctx->cPriv->loaderPrivate);
+
+ return img;
+}
+
+static __DRIimage *
+dri2_create_image_from_name(__DRIcontext *context,
+ int width, int height, int format,
+ int name, int pitch, void *loaderPrivate)
+{
+ struct dri_screen *screen = dri_screen(context->driScreenPriv);
+ __DRIimage *img;
+ struct pipe_resource templ;
+ struct winsys_handle whandle;
+ unsigned tex_usage;
+ enum pipe_format pf;
+
+ tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
+
+ switch (format) {
+ case __DRI_IMAGE_FORMAT_RGB565:
+ pf = PIPE_FORMAT_B5G6R5_UNORM;
+ break;
+ case __DRI_IMAGE_FORMAT_XRGB8888:
+ pf = PIPE_FORMAT_B8G8R8X8_UNORM;
+ break;
+ case __DRI_IMAGE_FORMAT_ARGB8888:
+ pf = PIPE_FORMAT_B8G8R8A8_UNORM;
+ break;
+ default:
+ pf = PIPE_FORMAT_NONE;
+ break;
+ }
+ if (pf == PIPE_FORMAT_NONE)
+ return NULL;
+
+ img = CALLOC_STRUCT(__DRIimageRec);
+ if (!img)
+ return NULL;
+
+ memset(&templ, 0, sizeof(templ));
+ templ.bind = tex_usage;
+ templ.format = pf;
+ templ.target = PIPE_TEXTURE_2D;
+ templ.last_level = 0;
+ templ.width0 = width;
+ templ.height0 = height;
+ templ.depth0 = 1;
+
+ memset(&whandle, 0, sizeof(whandle));
+ whandle.handle = name;
+ whandle.stride = pitch * util_format_get_blocksize(pf);
+
+ img->texture = screen->pipe_screen->resource_from_handle(screen->pipe_screen,
+ &templ, &whandle);
+ if (!img->texture) {
+ FREE(img);
+ return NULL;
+ }
+
+ img->face = 0;
+ img->level = 0;
+ img->zslice = 0;
+ img->loader_private = loaderPrivate;
+
+ return img;
+}
+
+static __DRIimage *
+dri2_create_image_from_renderbuffer(__DRIcontext *context,
+ int renderbuffer, void *loaderPrivate)
+{
+ struct dri_context *ctx = dri_context(context->driverPrivate);
+
+ if (!ctx->st->get_resource_for_egl_image)
+ return NULL;
+
+ /* TODO */
+ return NULL;
+}
+
+static void
+dri2_destroy_image(__DRIimage *img)
+{
+ pipe_resource_reference(&img->texture, NULL);
+ FREE(img);
+}
+
+static struct __DRIimageExtensionRec dri2ImageExtension = {
+ { __DRI_IMAGE, __DRI_IMAGE_VERSION },
+ dri2_create_image_from_name,
+ dri2_create_image_from_renderbuffer,
+ dri2_destroy_image,
+};
+
+/*
+ * Backend function init_screen.
+ */
+
+static const __DRIextension *dri_screen_extensions[] = {
+ &driReadDrawableExtension,
+ &driCopySubBufferExtension.base,
+ &driSwapControlExtension.base,
+ &driFrameTrackingExtension.base,
+ &driMediaStreamCounterExtension.base,
+ &dri2TexBufferExtension.base,
+ &dri2FlushExtension.base,
+ &dri2ImageExtension.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)
+{
+ const __DRIconfig **configs;
+ struct dri_screen *screen;
+ struct pipe_screen *pscreen;
+
+ 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;
+
+ pscreen = screen->api->create_screen(screen->api, screen->fd, NULL);
+ /* dri_init_screen_helper checks pscreen for us */
+
+ configs = dri_init_screen_helper(screen, pscreen, 32);
+ if (!configs)
+ goto fail;
+
+ screen->auto_fake_front = dri_with_format(sPriv);
+
+ return configs;
+fail:
+ dri_destroy_screen_helper(screen);
+ FREE(screen);
+ return NULL;
+}
+
+/* This is the table of extensions that the loader will dlsym() for. */
+PUBLIC const __DRIextension *__driDriverExtensions[] = {
+ &driCoreExtension.base,
+ &driLegacyExtension.base,
+ &driDRI2Extension.base,
+ NULL
+};
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-25 01:53:31 +0000