+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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, 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 TUNGSTEN GRAPHICS 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/u_memory.h"
-#include "pipe/p_state.h"
-#include "sct.h"
-
-
-struct texture_list
-{
- struct pipe_texture *texture;
- struct texture_list *next;
-};
-
-
-
-#define MAX_SURFACES ((PIPE_MAX_COLOR_BUFS) + 1)
-
-struct sct_context
-{
- const struct pipe_context *context;
-
- /** surfaces the context is drawing into */
- struct pipe_surface *surfaces[MAX_SURFACES];
-
- /** currently bound textures */
- struct pipe_texture *textures[PIPE_MAX_SAMPLERS];
-
- /** previously bound textures, used but not flushed */
- struct texture_list *textures_used;
-
- boolean needs_flush;
-
- struct sct_context *next;
-};
-
-
-
-struct sct_surface
-{
- const struct pipe_surface *surface;
-
- /** list of contexts drawing to this surface */
- struct sct_context_list *contexts;
-
- struct sct_surface *next;
-};
-
-
-
-/**
- * Find the surface_info for the given pipe_surface
- */
-static struct sct_surface *
-find_surface_info(struct surface_context_tracker *sct,
- const struct pipe_surface *surface)
-{
- struct sct_surface *si;
- for (si = sct->surfaces; si; si = si->next)
- if (si->surface == surface)
- return si;
- return NULL;
-}
-
-
-/**
- * As above, but create new surface_info if surface is new.
- */
-static struct sct_surface *
-find_create_surface_info(struct surface_context_tracker *sct,
- const struct pipe_surface *surface)
-{
- struct sct_surface *si = find_surface_info(sct, surface);
- if (si)
- return si;
-
- /* alloc new */
- si = CALLOC_STRUCT(sct_surface);
- if (si) {
- si->surface = surface;
-
- /* insert at head */
- si->next = sct->surfaces;
- sct->surfaces = si;
- }
-
- return si;
-}
-
-
-/**
- * Find a context_info for the given context.
- */
-static struct sct_context *
-find_context_info(struct surface_context_tracker *sct,
- const struct pipe_context *context)
-{
- struct sct_context *ci;
- for (ci = sct->contexts; ci; ci = ci->next)
- if (ci->context == context)
- return ci;
- return NULL;
-}
-
-
-/**
- * As above, but create new context_info if context is new.
- */
-static struct sct_context *
-find_create_context_info(struct surface_context_tracker *sct,
- const struct pipe_context *context)
-{
- struct sct_context *ci = find_context_info(sct, context);
- if (ci)
- return ci;
-
- /* alloc new */
- ci = CALLOC_STRUCT(sct_context);
- if (ci) {
- ci->context = context;
-
- /* insert at head */
- ci->next = sct->contexts;
- sct->contexts = ci;
- }
-
- return ci;
-}
-
-
-/**
- * Is the context already bound to the surface?
- */
-static boolean
-find_surface_context(const struct sct_surface *si,
- const struct pipe_context *context)
-{
- const struct sct_context_list *cl;
- for (cl = si->contexts; cl; cl = cl->next) {
- if (cl->context == context) {
- return TRUE;
- }
- }
- return FALSE;
-}
-
-
-/**
- * Add a context to the list of contexts associated with a surface.
- */
-static void
-add_context_to_surface(struct sct_surface *si,
- const struct pipe_context *context)
-{
- struct sct_context_list *cl = CALLOC_STRUCT(sct_context_list);
- if (cl) {
- cl->context = context;
- /* insert at head of list of contexts */
- cl->next = si->contexts;
- si->contexts = cl;
- }
-}
-
-
-/**
- * Remove a context from the list of contexts associated with a surface.
- */
-static void
-remove_context_from_surface(struct sct_surface *si,
- const struct pipe_context *context)
-{
- struct sct_context_list *prev = NULL, *curr, *next;
-
- for (curr = si->contexts; curr; curr = next) {
- if (curr->context == context) {
- /* remove */
- if (prev)
- prev->next = curr->next;
- else
- si->contexts = curr->next;
- next = curr->next;
- FREE(curr);
- }
- else {
- prev = curr;
- next = curr->next;
- }
- }
-}
-
-
-/**
- * Unbind context from surface.
- */
-static void
-unbind_context_surface(struct surface_context_tracker *sct,
- struct pipe_context *context,
- struct pipe_surface *surface)
-{
- struct sct_surface *si = find_surface_info(sct, surface);
- if (si) {
- remove_context_from_surface(si, context);
- }
-}
-
-
-/**
- * Bind context to a set of surfaces (color + Z).
- * Like MakeCurrent().
- */
-void
-sct_bind_surfaces(struct surface_context_tracker *sct,
- struct pipe_context *context,
- uint num_surf,
- struct pipe_surface **surfaces)
-{
- struct sct_context *ci = find_create_context_info(sct, context);
- uint i;
-
- if (!ci) {
- return; /* out of memory */
- }
-
- /* unbind currently bound surfaces */
- for (i = 0; i < MAX_SURFACES; i++) {
- if (ci->surfaces[i]) {
- unbind_context_surface(sct, context, ci->surfaces[i]);
- }
- }
-
- /* bind new surfaces */
- for (i = 0; i < num_surf; i++) {
- struct sct_surface *si = find_create_surface_info(sct, surfaces[i]);
- if (!find_surface_context(si, context)) {
- add_context_to_surface(si, context);
- }
- }
-}
-
-
-/**
- * Return list of contexts bound to a surface.
- */
-const struct sct_context_list *
-sct_get_surface_contexts(struct surface_context_tracker *sct,
- const struct pipe_surface *surface)
-{
- const struct sct_surface *si = find_surface_info(sct, surface);
- return si->contexts;
-}
-
-
-
-static boolean
-find_texture(const struct sct_context *ci,
- const struct pipe_texture *texture)
-{
- const struct texture_list *tl;
-
- for (tl = ci->textures_used; tl; tl = tl->next) {
- if (tl->texture == texture) {
- return TRUE;
- }
- }
- return FALSE;
-}
-
-
-/**
- * Add the given texture to the context's list of used textures.
- */
-static void
-add_texture_used(struct sct_context *ci,
- struct pipe_texture *texture)
-{
- if (!find_texture(ci, texture)) {
- /* add to list */
- struct texture_list *tl = CALLOC_STRUCT(texture_list);
- if (tl) {
- pipe_texture_reference(&tl->texture, texture);
- /* insert at head */
- tl->next = ci->textures_used;
- ci->textures_used = tl;
- }
- }
-}
-
-
-/**
- * Bind a texture to a rendering context.
- */
-void
-sct_bind_texture(struct surface_context_tracker *sct,
- struct pipe_context *context,
- uint unit,
- struct pipe_texture *tex)
-{
- struct sct_context *ci = find_context_info(sct, context);
-
- if (ci->textures[unit] != tex) {
- /* put texture on the 'used' list */
- add_texture_used(ci, tex);
- /* bind new */
- pipe_texture_reference(&ci->textures[unit], tex);
- }
-}
-
-
-/**
- * Check if the given texture has been used by the rendering context
- * since the last call to sct_flush_textures().
- */
-boolean
-sct_is_texture_used(struct surface_context_tracker *sct,
- const struct pipe_context *context,
- const struct pipe_texture *texture)
-{
- const struct sct_context *ci = find_context_info(sct, context);
- return find_texture(ci, texture);
-}
-
-
-/**
- * To be called when the image contents of a texture are changed, such
- * as for gl[Copy]TexSubImage().
- * XXX this may not be needed
- */
-void
-sct_update_texture(struct pipe_texture *tex)
-{
-
-}
-
-
-/**
- * When a scene is flushed/rendered we can release the list of
- * used textures.
- */
-void
-sct_flush_textures(struct surface_context_tracker *sct,
- struct pipe_context *context)
-{
- struct sct_context *ci = find_context_info(sct, context);
- struct texture_list *tl, *next;
- uint i;
-
- for (tl = ci->textures_used; tl; tl = next) {
- next = tl->next;
- pipe_texture_reference(&tl->texture, NULL);
- FREE(tl);
- }
- ci->textures_used = NULL;
-
- /* put the currently bound textures on the 'used' list */
- for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
- add_texture_used(ci, ci->textures[i]);
- }
-}
-
-
-
-void
-sct_destroy_context(struct surface_context_tracker *sct,
- struct pipe_context *context)
-{
- /* XXX should we require an unbinding first? */
- {
- struct sct_surface *si;
- for (si = sct->surfaces; si; si = si->next) {
- remove_context_from_surface(si, context);
- }
- }
-
- /* remove context from context_info list */
- {
- struct sct_context *ci, *next, *prev = NULL;
- for (ci = sct->contexts; ci; ci = next) {
- next = ci->next;
- if (ci->context == context) {
- if (prev)
- prev->next = ci->next;
- else
- sct->contexts = ci->next;
- FREE(ci);
- }
- else {
- prev = ci;
- }
- }
- }
-
-}
-
-
-void
-sct_destroy_surface(struct surface_context_tracker *sct,
- struct pipe_surface *surface)
-{
- if (1) {
- /* debug/sanity: no context should be bound to surface */
- struct sct_context *ci;
- uint i;
- for (ci = sct->contexts; ci; ci = ci->next) {
- for (i = 0; i < MAX_SURFACES; i++) {
- assert(ci->surfaces[i] != surface);
- }
- }
- }
-
- /* remove surface from sct_surface list */
- {
- struct sct_surface *si, *next, *prev = NULL;
- for (si = sct->surfaces; si; si = next) {
- next = si->next;
- if (si->surface == surface) {
- /* unlink */
- if (prev)
- prev->next = si->next;
- else
- sct->surfaces = si->next;
- FREE(si);
- }
- else {
- prev = si;
- }
- }
- }
-}
+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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, 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 TUNGSTEN GRAPHICS 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.
- *
- **************************************************************************/
-
-/**
- * Surface/Context Tracking
- *
- * For some drivers, we need to monitor the binding between contexts and
- * surfaces/textures.
- * This code may evolve quite a bit...
- */
-
-
-#ifndef SCT_H
-#define SCT_H
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-struct pipe_context;
-struct pipe_surface;
-
-struct sct_context;
-struct sct_surface;
-
-
-/**
- * Per-device info, basically
- */
-struct surface_context_tracker
-{
- struct sct_context *contexts;
- struct sct_surface *surfaces;
-};
-
-
-
-/**
- * Simple linked list of contexts
- */
-struct sct_context_list
-{
- const struct pipe_context *context;
- struct sct_context_list *next;
-};
-
-
-
-extern void
-sct_bind_surfaces(struct surface_context_tracker *sct,
- struct pipe_context *context,
- uint num_surf,
- struct pipe_surface **surfaces);
-
-
-extern void
-sct_bind_texture(struct surface_context_tracker *sct,
- struct pipe_context *context,
- uint unit,
- struct pipe_texture *texture);
-
-
-extern void
-sct_update_texture(struct pipe_texture *tex);
-
-
-extern boolean
-sct_is_texture_used(struct surface_context_tracker *sct,
- const struct pipe_context *context,
- const struct pipe_texture *texture);
-
-extern void
-sct_flush_textures(struct surface_context_tracker *sct,
- struct pipe_context *context);
-
-
-extern const struct sct_context_list *
-sct_get_surface_contexts(struct surface_context_tracker *sct,
- const struct pipe_surface *surf);
-
-
-extern void
-sct_destroy_context(struct surface_context_tracker *sct,
- struct pipe_context *context);
-
-
-extern void
-sct_destroy_surface(struct surface_context_tracker *sct,
- struct pipe_surface *surface);
-
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* SCT_H */
projects / mesa.git / commitdiff