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mesa/src/gallium/frontends/dri/drisw.c

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/**************************************************************************
*
* 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 "GL/internal/mesa_interface.h"
#include "git_sha1.h"
#include "util/format/u_format.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "util/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"
#ifdef HAVE_LIBDRM
#include <xf86drm.h>
#endif
DEBUG_GET_ONCE_BOOL_OPTION(swrast_no_present, "SWRAST_NO_PRESENT", false);
static inline void
get_drawable_info(struct dri_drawable *drawable, int *x, int *y, int *w, int *h)
{
const __DRIswrastLoaderExtension *loader = drawable->screen->swrast_loader;
loader->getDrawableInfo(opaque_dri_drawable(drawable),
x, y, w, h,
drawable->loaderPrivate);
}
static inline void
put_image(struct dri_drawable *drawable, void *data, unsigned width, unsigned height)
{
const __DRIswrastLoaderExtension *loader = drawable->screen->swrast_loader;
loader->putImage(opaque_dri_drawable(drawable), __DRI_SWRAST_IMAGE_OP_SWAP,
0, 0, width, height,
data, drawable->loaderPrivate);
}
static inline void
put_image2(struct dri_drawable *drawable, void *data, int x, int y,
unsigned width, unsigned height, unsigned stride)
{
const __DRIswrastLoaderExtension *loader = drawable->screen->swrast_loader;
loader->putImage2(opaque_dri_drawable(drawable), __DRI_SWRAST_IMAGE_OP_SWAP,
x, y, width, height, stride,
data, drawable->loaderPrivate);
}
static inline void
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)
{
const __DRIswrastLoaderExtension *loader = drawable->screen->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(opaque_dri_drawable(drawable), __DRI_SWRAST_IMAGE_OP_SWAP,
x, y, width, height, stride,
shmid, shmaddr, offset, drawable->loaderPrivate);
else
loader->putImageShm(opaque_dri_drawable(drawable), __DRI_SWRAST_IMAGE_OP_SWAP,
x, y, width, height, stride,
shmid, shmaddr, offset + offset_x, drawable->loaderPrivate);
}
static inline void
get_image(struct dri_drawable *drawable, int x, int y, int width, int height, void *data)
{
const __DRIswrastLoaderExtension *loader = drawable->screen->swrast_loader;
loader->getImage(opaque_dri_drawable(drawable),
x, y, width, height,
data, drawable->loaderPrivate);
}
static inline void
get_image2(struct dri_drawable *drawable, int x, int y, int width, int height, int stride, void *data)
{
const __DRIswrastLoaderExtension *loader = drawable->screen->swrast_loader;
/* getImage2 support is only in version 3 or newer */
if (loader->base.version < 3)
return;
loader->getImage2(opaque_dri_drawable(drawable),
x, y, width, height, stride,
data, drawable->loaderPrivate);
}
static inline bool
get_image_shm(struct dri_drawable *drawable, int x, int y, int width, int height,
struct pipe_resource *res)
{
const __DRIswrastLoaderExtension *loader = drawable->screen->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(opaque_dri_drawable(drawable), x, y, width, height, whandle.handle, drawable->loaderPrivate);
loader->getImageShm(opaque_dri_drawable(drawable), x, y, width, height, whandle.handle, drawable->loaderPrivate);
return true;
}
static void
drisw_update_drawable_info(struct dri_drawable *drawable)
{
int x, y;
get_drawable_info(drawable, &x, &y, &drawable->w, &drawable->h);
}
static void
drisw_get_image(struct dri_drawable *drawable,
int x, int y, unsigned width, unsigned height, unsigned stride,
void *data)
{
int draw_x, draw_y, draw_w, draw_h;
get_drawable_info(drawable, &draw_x, &draw_y, &draw_w, &draw_h);
get_image2(drawable, x, y, draw_w, draw_h, stride, data);
}
static void
drisw_put_image(struct dri_drawable *drawable,
void *data, unsigned width, unsigned height)
{
put_image(drawable, data, width, height);
}
static void
drisw_put_image2(struct dri_drawable *drawable,
void *data, int x, int y, unsigned width, unsigned height,
unsigned stride)
{
put_image2(drawable, 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)
{
put_image_shm(drawable, shmid, shmaddr, offset, offset_x, x, y, width, height, stride);
}
static inline void
drisw_present_texture(struct pipe_context *pipe, struct dri_drawable *drawable,
struct pipe_resource *ptex, unsigned nrects, struct pipe_box *sub_box)
{
struct dri_screen *screen = drawable->screen;
if (screen->swrast_no_present)
return;
screen->base.screen->flush_frontbuffer(screen->base.screen, pipe, ptex, 0, 0, drawable, nrects, sub_box);
}
static inline void
drisw_invalidate_drawable(struct dri_drawable *drawable)
{
drawable->texture_stamp = drawable->lastStamp - 1;
p_atomic_inc(&drawable->base.stamp);
}
static inline void
drisw_copy_to_front(struct pipe_context *pipe,
struct dri_drawable *drawable,
struct pipe_resource *ptex,
int nboxes, struct pipe_box *boxes)
{
drisw_present_texture(pipe, drawable, ptex, nboxes, boxes);
drisw_invalidate_drawable(drawable);
}
/*
* Backend functions for pipe_frontend_drawable and swap_buffers.
*/
static void
drisw_swap_buffers_with_damage(struct dri_drawable *drawable, int nrects, const int *rects)
{
struct dri_context *ctx = dri_get_current();
struct dri_screen *screen = drawable->screen;
struct pipe_resource *ptex;
if (!ctx)
return;
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(ctx->st->ctx);
ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
if (ptex) {
struct pipe_fence_handle *fence = NULL;
struct pipe_box stack_boxes[64];
if (nrects > ARRAY_SIZE(stack_boxes))
nrects = 0;
if (nrects) {
for (unsigned int i = 0; i < nrects; i++) {
const int *rect = &rects[i * 4];
int w = MIN2(rect[2], ptex->width0);
int h = MIN2(rect[3], ptex->height0);
int x = CLAMP(rect[0], 0, ptex->width0);
int y = CLAMP(ptex->height0 - rect[1] - h, 0, ptex->height0);
if (h > ptex->height0 - y)
h = ptex->height0 - y;
u_box_2d(x, y, w, h, &stack_boxes[i]);
}
}
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);
st_context_flush(ctx->st, ST_FLUSH_FRONT, &fence, 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]);
}
screen->base.screen->fence_finish(screen->base.screen, ctx->st->pipe,
fence, OS_TIMEOUT_INFINITE);
screen->base.screen->fence_reference(screen->base.screen, &fence, NULL);
drisw_copy_to_front(ctx->st->pipe, drawable, ptex, nrects, nrects ? stack_boxes : NULL);
drawable->buffer_age = 1;
/* TODO: remove this if the framebuffer state doesn't change. */
st_context_invalidate_state(ctx->st, ST_INVALIDATE_FB_STATE);
}
}
static void
drisw_swap_buffers(struct dri_drawable *drawable)
{
drisw_swap_buffers_with_damage(drawable, 0, NULL);
}
static void
drisw_copy_sub_buffer(struct dri_drawable *drawable, int x, int y,
int w, int h)
{
struct dri_context *ctx = dri_get_current();
struct dri_screen *screen = drawable->screen;
struct pipe_resource *ptex;
struct pipe_box box;
if (!ctx)
return;
ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
if (ptex) {
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(ctx->st->ctx);
struct pipe_fence_handle *fence = NULL;
if (ctx->pp && drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL])
pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
st_context_flush(ctx->st, ST_FLUSH_FRONT, &fence, NULL, NULL);
screen->base.screen->fence_finish(screen->base.screen, ctx->st->pipe,
fence, OS_TIMEOUT_INFINITE);
screen->base.screen->fence_reference(screen->base.screen, &fence, 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]);
}
u_box_2d(x, drawable->h - y - h, w, h, &box);
drisw_present_texture(ctx->st->pipe, drawable, ptex, 1, &box);
}
}
static bool
drisw_flush_frontbuffer(struct dri_context *ctx,
struct dri_drawable *drawable,
enum st_attachment_type statt)
{
struct pipe_resource *ptex;
if (!ctx || statt != ST_ATTACHMENT_FRONT_LEFT)
return false;
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(ctx->st->ctx);
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->st->pipe, ctx->draw, ptex, 0, NULL);
}
return true;
}
/**
* 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 = drawable->screen;
const __DRIswrastLoaderExtension *loader = drawable->screen->swrast_loader;
struct pipe_resource templ;
unsigned width, height;
bool resized;
unsigned i;
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(stctx->st->ctx);
width = drawable->w;
height = drawable->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);
}
drawable->buffer_age = 0;
}
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;
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)
{
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);
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(ctx->st->ctx);
get_drawable_info(drawable, &x, &y, &w, &h);
map = pipe_texture_map(pipe, res,
0, 0, // level, layer,
PIPE_MAP_WRITE,
x, y, w, h, &transfer);
/* Copy the Drawable content to the mapped texture buffer */
if (!get_image_shm(drawable, x, y, w, h, res))
get_image(drawable, 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_texture_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,
};
extern const __DRIimageExtension driVkImageExtension;
static const __DRIrobustnessExtension dri2Robustness = {
.base = { __DRI2_ROBUSTNESS, 1 }
};
/*
* Backend function for init_screen.
*/
static const __DRIextension *drisw_screen_extensions[] = {
&driSWImageExtension.base,
&driTexBufferExtension.base,
&dri2RendererQueryExtension.base,
&dri2ConfigQueryExtension.base,
&dri2FenceExtension.base,
&dri2FlushControlExtension.base,
NULL
};
static const __DRIextension *drisw_robust_screen_extensions[] = {
&driSWImageExtension.base,
&driTexBufferExtension.base,
&dri2RendererQueryExtension.base,
&dri2ConfigQueryExtension.base,
&dri2FenceExtension.base,
&dri2Robustness.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 struct dri_drawable *
drisw_create_drawable(struct dri_screen *screen, const struct gl_config * visual,
bool isPixmap, void *loaderPrivate)
{
struct dri_drawable *drawable = dri_create_drawable(screen, visual, isPixmap,
loaderPrivate);
if (!drawable)
return NULL;
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;
drawable->swap_buffers = drisw_swap_buffers;
drawable->swap_buffers_with_damage = drisw_swap_buffers_with_damage;
return drawable;
}
static const __DRIconfig **
drisw_init_screen(struct dri_screen *screen, bool implicit)
{
const __DRIswrastLoaderExtension *loader = screen->swrast_loader;
const __DRIconfig **configs;
struct pipe_screen *pscreen = NULL;
const struct drisw_loader_funcs *lf = &drisw_lf;
screen->swrast_no_present = debug_get_option_swrast_no_present();
if (loader->base.version >= 4) {
if (loader->putImageShm)
lf = &drisw_shm_lf;
}
bool success = false;
#ifdef HAVE_DRISW_KMS
if (screen->fd != -1)
success = pipe_loader_sw_probe_kms(&screen->dev, screen->fd);
#endif
if (!success)
success = pipe_loader_sw_probe_dri(&screen->dev, lf);
if (success)
pscreen = pipe_loader_create_screen(screen->dev);
if (!pscreen)
goto fail;
dri_init_options(screen);
configs = dri_init_screen(screen, pscreen);
if (!configs)
goto fail;
if (pscreen->get_param(pscreen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY)) {
screen->extensions = drisw_robust_screen_extensions;
screen->has_reset_status_query = true;
}
else
screen->extensions = drisw_screen_extensions;
#ifdef HAVE_LIBDRM
if (pscreen->resource_create_with_modifiers && (pscreen->get_param(pscreen, PIPE_CAP_DMABUF) & DRM_PRIME_CAP_EXPORT))
screen->extensions[0] = &driVkImageExtension.base;
#endif
screen->lookup_egl_image = dri2_lookup_egl_image;
const __DRIimageLookupExtension *image = screen->dri2.image;
if (image &&
image->base.version >= 2 &&
image->validateEGLImage &&
image->lookupEGLImageValidated) {
screen->validate_egl_image = dri2_validate_egl_image;
screen->lookup_egl_image_validated = dri2_lookup_egl_image_validated;
}
screen->create_drawable = drisw_create_drawable;
return configs;
fail:
dri_release_screen(screen);
return NULL;
}
/* swrast copy sub buffer entrypoint. */
static void driswCopySubBuffer(__DRIdrawable *pdp, int x, int y,
int w, int h)
{
struct dri_drawable *drawable = dri_drawable(pdp);
assert(drawable->screen->swrast_loader);
drisw_copy_sub_buffer(drawable, x, y, w, h);
}
/* for swrast only */
const __DRIcopySubBufferExtension driSWCopySubBufferExtension = {
.base = { __DRI_COPY_SUB_BUFFER, 1 },
.copySubBuffer = driswCopySubBuffer,
};
static const struct __DRImesaCoreExtensionRec mesaCoreExtension = {
.base = { __DRI_MESA, 2 },
.version_string = MESA_INTERFACE_VERSION_STRING,
.createNewScreen = driCreateNewScreen2,
.createContext = driCreateContextAttribs,
.initScreen = drisw_init_screen,
.createNewScreen3 = driCreateNewScreen3,
};
/* This is the table of extensions that the loader will dlsym() for. */
const __DRIextension *galliumsw_driver_extensions[] = {
&driCoreExtension.base,
&mesaCoreExtension.base,
&driSWRastExtension.base,
&driSWCopySubBufferExtension.base,
&gallium_config_options.base,
NULL
};
/* vim: set sw=3 ts=8 sts=3 expandtab: */
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