+++ /dev/null
-/*
- * Mesa 3-D graphics library
- *
- * Copyright (C) 2010 LunarG Inc.
- * Copyright (C) 2011 VMware Inc. All rights reserved.
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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:
- * Chia-I Wu <olv@lunarg.com>
- * Thomas Hellstrom <thellstrom@vmware.com>
- */
-
-#include "util/u_inlines.h"
-#include "util/u_memory.h"
-#include "pipe/p_screen.h"
-#include "pipe/p_context.h"
-#include "pipe/p_state.h"
-
-#include "native_helper.h"
-
-/**
- * Number of swap fences and mask
- */
-
-#define EGL_SWAP_FENCES_MAX 4
-#define EGL_SWAP_FENCES_MASK 3
-#define EGL_SWAP_FENCES_DEFAULT 1
-
-struct resource_surface {
- struct pipe_screen *screen;
- enum pipe_format format;
- uint bind;
-
- struct pipe_resource *resources[NUM_NATIVE_ATTACHMENTS];
- uint resource_mask;
- uint width, height;
-
- /**
- * Swap fences.
- */
- struct pipe_fence_handle *swap_fences[EGL_SWAP_FENCES_MAX];
- unsigned int cur_fences;
- unsigned int head;
- unsigned int tail;
- unsigned int desired_fences;
-};
-
-struct resource_surface *
-resource_surface_create(struct pipe_screen *screen,
- enum pipe_format format, uint bind)
-{
- struct resource_surface *rsurf = CALLOC_STRUCT(resource_surface);
- char *swap_fences = getenv("EGL_THROTTLE_FENCES");
-
- if (rsurf) {
- rsurf->screen = screen;
- rsurf->format = format;
- rsurf->bind = bind;
- rsurf->desired_fences = (swap_fences) ? atoi(swap_fences) :
- EGL_SWAP_FENCES_DEFAULT;
- if (rsurf->desired_fences > EGL_SWAP_FENCES_MAX)
- rsurf->desired_fences = EGL_SWAP_FENCES_MAX;
- }
-
- return rsurf;
-}
-
-static void
-resource_surface_free_resources(struct resource_surface *rsurf)
-{
- if (rsurf->resource_mask) {
- int i;
-
- for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
- if (rsurf->resources[i])
- pipe_resource_reference(&rsurf->resources[i], NULL);
- }
- rsurf->resource_mask = 0x0;
- }
-}
-
-void
-resource_surface_destroy(struct resource_surface *rsurf)
-{
- resource_surface_free_resources(rsurf);
- FREE(rsurf);
-}
-
-boolean
-resource_surface_set_size(struct resource_surface *rsurf,
- uint width, uint height)
-{
- boolean changed = FALSE;
-
- if (rsurf->width != width || rsurf->height != height) {
- resource_surface_free_resources(rsurf);
- rsurf->width = width;
- rsurf->height = height;
- changed = TRUE;
- }
-
- return changed;
-}
-
-void
-resource_surface_get_size(struct resource_surface *rsurf,
- uint *width, uint *height)
-{
- if (width)
- *width = rsurf->width;
- if (height)
- *height = rsurf->height;
-}
-
-boolean
-resource_surface_add_resources(struct resource_surface *rsurf,
- uint resource_mask)
-{
- struct pipe_resource templ;
- int i;
-
- resource_mask &= ~rsurf->resource_mask;
- if (!resource_mask)
- return TRUE;
-
- if (!rsurf->width || !rsurf->height)
- return FALSE;
-
- memset(&templ, 0, sizeof(templ));
- templ.target = PIPE_TEXTURE_2D;
- templ.format = rsurf->format;
- templ.bind = rsurf->bind;
- templ.width0 = rsurf->width;
- templ.height0 = rsurf->height;
- templ.depth0 = 1;
- templ.array_size = 1;
-
- for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
- if (resource_mask & (1 <<i)) {
- assert(!rsurf->resources[i]);
-
- rsurf->resources[i] =
- rsurf->screen->resource_create(rsurf->screen, &templ);
- if (rsurf->resources[i])
- rsurf->resource_mask |= 1 << i;
- }
- }
-
- return ((rsurf->resource_mask & resource_mask) == resource_mask);
-}
-
-void
-resource_surface_import_resource(struct resource_surface *rsurf,
- enum native_attachment which,
- struct pipe_resource *pres)
-{
- pipe_resource_reference(&rsurf->resources[which], pres);
- rsurf->resource_mask |= 1 << which;
-}
-
-void
-resource_surface_get_resources(struct resource_surface *rsurf,
- struct pipe_resource **resources,
- uint resource_mask)
-{
- int i;
-
- for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
- if (resource_mask & (1 << i)) {
- resources[i] = NULL;
- pipe_resource_reference(&resources[i], rsurf->resources[i]);
- }
- }
-}
-
-struct pipe_resource *
-resource_surface_get_single_resource(struct resource_surface *rsurf,
- enum native_attachment which)
-{
- struct pipe_resource *pres = NULL;
- pipe_resource_reference(&pres, rsurf->resources[which]);
- return pres;
-}
-
-static INLINE void
-pointer_swap(const void **p1, const void **p2)
-{
- const void *tmp = *p1;
- *p1 = *p2;
- *p2 = tmp;
-}
-
-void
-resource_surface_swap_buffers(struct resource_surface *rsurf,
- enum native_attachment buf1,
- enum native_attachment buf2,
- boolean only_if_exist)
-{
- const uint buf1_bit = 1 << buf1;
- const uint buf2_bit = 1 << buf2;
- uint mask;
-
- if (only_if_exist && !(rsurf->resources[buf1] && rsurf->resources[buf2]))
- return;
-
- pointer_swap((const void **) &rsurf->resources[buf1],
- (const void **) &rsurf->resources[buf2]);
-
- /* swap mask bits */
- mask = rsurf->resource_mask & ~(buf1_bit | buf2_bit);
- if (rsurf->resource_mask & buf1_bit)
- mask |= buf2_bit;
- if (rsurf->resource_mask & buf2_bit)
- mask |= buf1_bit;
-
- rsurf->resource_mask = mask;
-}
-
-boolean
-resource_surface_present(struct resource_surface *rsurf,
- enum native_attachment which,
- void *winsys_drawable_handle)
-{
- struct pipe_resource *pres = rsurf->resources[which];
-
- if (!pres)
- return TRUE;
-
- rsurf->screen->flush_frontbuffer(rsurf->screen,
- pres, 0, 0, winsys_drawable_handle, NULL);
-
- return TRUE;
-}
-
-/**
- * Schedule a copy swap from the back to the front buffer using the
- * native display's copy context.
- */
-boolean
-resource_surface_copy_swap(struct resource_surface *rsurf,
- struct native_display *ndpy)
-{
- struct pipe_resource *ftex;
- struct pipe_resource *btex;
- struct pipe_context *pipe;
- struct pipe_box src_box;
- boolean ret = FALSE;
-
- pipe = ndpy_get_copy_context(ndpy);
- if (!pipe)
- return FALSE;
-
- ftex = resource_surface_get_single_resource(rsurf,
- NATIVE_ATTACHMENT_FRONT_LEFT);
- if (!ftex)
- goto out_no_ftex;
- btex = resource_surface_get_single_resource(rsurf,
- NATIVE_ATTACHMENT_BACK_LEFT);
- if (!btex)
- goto out_no_btex;
-
- u_box_origin_2d(ftex->width0, ftex->height0, &src_box);
- pipe->resource_copy_region(pipe, ftex, 0, 0, 0, 0,
- btex, 0, &src_box);
- ret = TRUE;
-
- out_no_btex:
- pipe_resource_reference(&btex, NULL);
- out_no_ftex:
- pipe_resource_reference(&ftex, NULL);
-
- return ret;
-}
-
-static struct pipe_fence_handle *
-swap_fences_pop_front(struct resource_surface *rsurf)
-{
- struct pipe_screen *screen = rsurf->screen;
- struct pipe_fence_handle *fence = NULL;
-
- if (rsurf->desired_fences == 0)
- return NULL;
-
- if (rsurf->cur_fences >= rsurf->desired_fences) {
- screen->fence_reference(screen, &fence, rsurf->swap_fences[rsurf->tail]);
- screen->fence_reference(screen, &rsurf->swap_fences[rsurf->tail++], NULL);
- rsurf->tail &= EGL_SWAP_FENCES_MASK;
- --rsurf->cur_fences;
- }
- return fence;
-}
-
-static void
-swap_fences_push_back(struct resource_surface *rsurf,
- struct pipe_fence_handle *fence)
-{
- struct pipe_screen *screen = rsurf->screen;
-
- if (!fence || rsurf->desired_fences == 0)
- return;
-
- while(rsurf->cur_fences == rsurf->desired_fences)
- swap_fences_pop_front(rsurf);
-
- rsurf->cur_fences++;
- screen->fence_reference(screen, &rsurf->swap_fences[rsurf->head++],
- fence);
- rsurf->head &= EGL_SWAP_FENCES_MASK;
-}
-
-boolean
-resource_surface_throttle(struct resource_surface *rsurf)
-{
- struct pipe_screen *screen = rsurf->screen;
- struct pipe_fence_handle *fence = swap_fences_pop_front(rsurf);
-
- if (fence) {
- (void) screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE);
- screen->fence_reference(screen, &fence, NULL);
- return TRUE;
- }
-
- return FALSE;
-}
-
-boolean
-resource_surface_flush_resource(struct resource_surface *rsurf,
- struct native_display *ndpy,
- enum native_attachment which)
-{
- struct pipe_context *pipe = ndpy_get_copy_context(ndpy);
-
- if (!pipe)
- return FALSE;
-
- pipe->flush_resource(pipe, rsurf->resources[which]);
-
- return TRUE;
-}
-
-boolean
-resource_surface_flush(struct resource_surface *rsurf,
- struct native_display *ndpy)
-{
- struct pipe_fence_handle *fence = NULL;
- struct pipe_screen *screen = rsurf->screen;
- struct pipe_context *pipe= ndpy_get_copy_context(ndpy);
-
- if (!pipe)
- return FALSE;
-
- pipe->flush(pipe, &fence, 0);
- if (fence == NULL)
- return FALSE;
-
- swap_fences_push_back(rsurf, fence);
- screen->fence_reference(screen, &fence, NULL);
-
- return TRUE;
-}
-
-void
-resource_surface_wait(struct resource_surface *rsurf)
-{
- while (resource_surface_throttle(rsurf));
-}
-
-boolean
-native_display_copy_to_pixmap(struct native_display *ndpy,
- EGLNativePixmapType pix,
- struct pipe_resource *src)
-{
- struct pipe_context *pipe;
- struct native_surface *nsurf;
- struct pipe_resource *dst;
- struct pipe_resource *tmp[NUM_NATIVE_ATTACHMENTS];
- const enum native_attachment natt = NATIVE_ATTACHMENT_FRONT_LEFT;
-
- pipe = ndpy_get_copy_context(ndpy);
- if (!pipe)
- return FALSE;
-
- nsurf = ndpy->create_pixmap_surface(ndpy, pix, NULL);
- if (!nsurf)
- return FALSE;
-
- /* get the texutre */
- tmp[natt] = NULL;
- nsurf->validate(nsurf, 1 << natt, NULL, tmp, NULL, NULL);
- dst = tmp[natt];
-
- if (dst && dst->format == src->format) {
- struct native_present_control ctrl;
- struct pipe_box src_box;
-
- u_box_origin_2d(src->width0, src->height0, &src_box);
- pipe->resource_copy_region(pipe, dst, 0, 0, 0, 0, src, 0, &src_box);
- pipe->flush(pipe, NULL, 0);
-
- memset(&ctrl, 0, sizeof(ctrl));
- ctrl.natt = natt;
- nsurf->present(nsurf, &ctrl);
- }
-
- if (dst)
- pipe_resource_reference(&dst, NULL);
-
- nsurf->destroy(nsurf);
-
- return TRUE;
-}
-
-#include "state_tracker/drm_driver.h"
-struct pipe_resource *
-drm_display_import_native_buffer(struct native_display *ndpy,
- struct native_buffer *nbuf)
-{
- struct pipe_screen *screen = ndpy->screen;
- struct pipe_resource *res = NULL;
-
- switch (nbuf->type) {
- case NATIVE_BUFFER_DRM:
- {
- struct winsys_handle wsh;
-
- memset(&wsh, 0, sizeof(wsh));
- wsh.handle = nbuf->u.drm.name;
- wsh.type = DRM_API_HANDLE_TYPE_SHARED;
- wsh.stride = nbuf->u.drm.stride;
-
- res = screen->resource_from_handle(screen, &nbuf->u.drm.templ, &wsh);
- }
- break;
- default:
- break;
- }
-
- return res;
-}
-
-boolean
-drm_display_export_native_buffer(struct native_display *ndpy,
- struct pipe_resource *res,
- struct native_buffer *nbuf)
-{
- struct pipe_screen *screen = ndpy->screen;
- boolean ret = FALSE;
-
- switch (nbuf->type) {
- case NATIVE_BUFFER_DRM:
- {
- struct winsys_handle wsh;
-
- if ((nbuf->u.drm.templ.bind & res->bind) != nbuf->u.drm.templ.bind)
- break;
-
- memset(&wsh, 0, sizeof(wsh));
- wsh.type = DRM_API_HANDLE_TYPE_KMS;
- if (!screen->resource_get_handle(screen, res, &wsh))
- break;
-
- nbuf->u.drm.handle = wsh.handle;
- nbuf->u.drm.stride = wsh.stride;
-
- /* get the name of the GEM object */
- if (nbuf->u.drm.templ.bind & PIPE_BIND_SHARED) {
- memset(&wsh, 0, sizeof(wsh));
- wsh.type = DRM_API_HANDLE_TYPE_SHARED;
- if (!screen->resource_get_handle(screen, res, &wsh))
- break;
-
- nbuf->u.drm.name = wsh.handle;
- }
-
- nbuf->u.drm.templ = *res;
- ret = TRUE;
- }
- break;
- default:
- break;
- }
-
- return ret;
-}
projects / mesa.git / blobdiff