#include #include "glamor_priv.h" #define GLAMOR_CACHE_EXPIRE_MAX 100 #define GLAMOR_CACHE_DEFAULT 0 #define GLAMOR_CACHE_EXACT_SIZE 1 #define GLAMOR_CACHE_TEXTURE 2 /* Loop from the tail to the head. */ #define list_for_each_entry_reverse(pos, head, member) \ for (pos = __container_of((head)->prev, pos, member); \ &pos->member != (head); \ pos = __container_of(pos->member.prev, pos, member)) #define list_for_each_entry_safe_reverse(pos, tmp, head, member) \ for (pos = __container_of((head)->prev, pos, member), \ tmp = __container_of(pos->member.prev, pos, member); \ &pos->member != (head); \ pos = tmp, tmp = __container_of(pos->member.prev, tmp, member)) #ifdef __i386__ static inline unsigned long __fls(unsigned long x) { asm("bsr %1,%0" : "=r" (x) : "rm" (x)); return x; } #else static inline unsigned long __fls(unsigned long x) { int n; if (x == 0) return(0); n = 0; if (x <= 0x0000FFFF) {n = n +16; x = x <<16;} if (x <= 0x00FFFFFF) {n = n + 8; x = x << 8;} if (x <= 0x0FFFFFFF) {n = n + 4; x = x << 4;} if (x <= 0x3FFFFFFF) {n = n + 2; x = x << 2;} if (x <= 0x7FFFFFFF) {n = n + 1;} return 31 - n; } #endif inline static int cache_wbucket(int size) { int order = __fls(size / 32); if (order >= CACHE_BUCKET_WCOUNT) order = CACHE_BUCKET_WCOUNT - 1; return order; } inline static int cache_hbucket(int size) { int order = __fls(size / 32); if (order >= CACHE_BUCKET_HCOUNT) order = CACHE_BUCKET_HCOUNT - 1; return order; } inline static int cache_format(GLenum format) { switch (format) { #if 0 case GL_ALPHA: return 1; #endif case GL_RGBA: default: return 0; } } glamor_pixmap_fbo * glamor_pixmap_fbo_cache_get(glamor_screen_private *glamor_priv, int w, int h, GLenum format, int flag) { struct list *cache; glamor_pixmap_fbo *fbo_entry; int size; if (!(flag & GLAMOR_CACHE_TEXTURE)) cache = &glamor_priv->fbo_cache[cache_format(format)] [cache_wbucket(w)] [cache_hbucket(h)]; else cache = &glamor_priv->tex_cache[cache_format(format)] [cache_wbucket(w)] [cache_hbucket(h)]; if (!(flag & GLAMOR_CACHE_EXACT_SIZE)) { list_for_each_entry(fbo_entry, cache, list) { if (fbo_entry->width >= w && fbo_entry->height >= h) { DEBUGF("Request w %d h %d \n", w, h); DEBUGF("got cache entry %p w %d h %d fbo %d tex %d\n", fbo_entry, fbo_entry->width, fbo_entry->height, fbo_entry->fb, fbo_entry->tex); list_del(&fbo_entry->list); return fbo_entry; } } } else { list_for_each_entry(fbo_entry, cache, list) { if (fbo_entry->width == w && fbo_entry->height == h) { DEBUGF("Request w %d h %d \n", w, h); DEBUGF("got cache entry %p w %d h %d fbo %d tex %d\n", fbo_entry, fbo_entry->width, fbo_entry->height, fbo_entry->fb, fbo_entry->tex); list_del(&fbo_entry->list); return fbo_entry; } } } return NULL; } void glamor_purge_fbo(glamor_pixmap_fbo *fbo) { glamor_gl_dispatch *dispatch = glamor_get_dispatch(fbo->glamor_priv); if (fbo->fb) dispatch->glDeleteFramebuffers(1, &fbo->fb); if (fbo->tex) dispatch->glDeleteTextures(1, &fbo->tex); if (fbo->pbo) dispatch->glDeleteBuffers(1, &fbo->pbo); glamor_put_dispatch(fbo->glamor_priv); free(fbo); } void glamor_pixmap_fbo_cache_put(glamor_pixmap_fbo *fbo) { struct list *cache; if (fbo->fb == 0) { glamor_purge_fbo(fbo); return; } if (fbo->fb) cache = &fbo->glamor_priv->fbo_cache[cache_format(fbo->format)] [cache_wbucket(fbo->width)] [cache_hbucket(fbo->height)]; else cache = &fbo->glamor_priv->tex_cache[cache_format(fbo->format)] [cache_wbucket(fbo->width)] [cache_hbucket(fbo->height)]; DEBUGF("Put cache entry %p to cache %p w %d h %d format %x fbo %d tex %d \n", fbo, cache, fbo->width, fbo->height, fbo->format, fbo->fb, fbo->tex); list_add(&fbo->list, cache); fbo->expire = fbo->glamor_priv->tick + GLAMOR_CACHE_EXPIRE_MAX; } glamor_pixmap_fbo * glamor_create_fbo_from_tex(glamor_screen_private *glamor_priv, int w, int h, int depth, GLint tex, int flag) { glamor_pixmap_fbo *fbo; GLenum format; fbo = calloc(1, sizeof(*fbo)); if (fbo == NULL) return NULL; list_init(&fbo->list); gl_iformat_for_depth(depth, &format); fbo->tex = tex; fbo->width = w; fbo->height = h; fbo->format = format; fbo->glamor_priv = glamor_priv; if (flag != GLAMOR_CREATE_FBO_NO_FBO) glamor_pixmap_ensure_fb(fbo); return fbo; } void glamor_fbo_expire(glamor_screen_private *glamor_priv) { struct list *cache; glamor_pixmap_fbo *fbo_entry, *tmp; int i,j,k; int empty_cache = TRUE; for(i = 0; i < CACHE_FORMAT_COUNT; i++) for(j = 0; j < CACHE_BUCKET_WCOUNT; j++) for(k = 0; k < CACHE_BUCKET_HCOUNT; k++) { cache = &glamor_priv->fbo_cache[i][j][k]; list_for_each_entry_safe_reverse(fbo_entry, tmp, cache, list) { if (GLAMOR_TICK_AFTER(fbo_entry->expire, glamor_priv->tick)) { empty_cache = FALSE; break; } list_del(&fbo_entry->list); DEBUGF("cache %p fbo %p expired %d current %d \n", cache, fbo_entry, fbo_entry->expire, glamor_priv->tick); glamor_purge_fbo(fbo_entry); } #if 0 cache = &glamor_priv->tex_cache[i][j][k]; list_for_each_entry_safe_reverse(fbo_entry, tmp, cache, list) { if (GLAMOR_TICK_AFTER(fbo_entry->expire, glamor_priv->tick)) { empty_cache = FALSE; break; } list_del(&fbo_entry->list); DEBUGF("cache %p fbo %p expired %d current %d \n", cache, fbo_entry, fbo_entry->expire, glamor_priv->tick); glamor_purge_fbo(fbo_entry); } #endif } } void glamor_init_pixmap_fbo(ScreenPtr screen) { glamor_screen_private *glamor_priv; int i,j,k; glamor_priv = glamor_get_screen_private(screen); for(i = 0; i < CACHE_FORMAT_COUNT; i++) for(j = 0; j < CACHE_BUCKET_WCOUNT; j++) for(k = 0; k < CACHE_BUCKET_HCOUNT; k++) { list_init(&glamor_priv->fbo_cache[i][j][k]); list_init(&glamor_priv->tex_cache[i][j][k]); } } void glamor_fini_pixmap_fbo(ScreenPtr screen) { struct list *cache; glamor_screen_private *glamor_priv; glamor_pixmap_fbo *fbo_entry, *tmp; int i,j,k; glamor_priv = glamor_get_screen_private(screen); for(i = 0; i < CACHE_FORMAT_COUNT; i++) for(j = 0; j < CACHE_BUCKET_WCOUNT; j++) for(k = 0; k < CACHE_BUCKET_HCOUNT; k++) { cache = &glamor_priv->fbo_cache[i][j][k]; list_for_each_entry_safe_reverse(fbo_entry, tmp, cache, list) { list_del(&fbo_entry->list); glamor_purge_fbo(fbo_entry); } #if 0 cache = &glamor_priv->tex_cache[i][j][k]; list_for_each_entry_safe_reverse(fbo_entry, tmp, cache, list) { list_del(&fbo_entry->list); glamor_purge_fbo(fbo_entry); } #endif } } void glamor_destroy_fbo(glamor_pixmap_fbo *fbo) { list_del(&fbo->list); glamor_pixmap_fbo_cache_put(fbo); } glamor_pixmap_fbo * glamor_create_tex_obj(glamor_screen_private *glamor_priv, int w, int h, GLenum format, int flag) { glamor_gl_dispatch *dispatch; glamor_pixmap_fbo *fbo; int cache_flag = GLAMOR_CACHE_TEXTURE; GLuint tex; if (flag == GLAMOR_CREATE_TEXTURE_EXACT_SIZE) cache_flag |= GLAMOR_CACHE_EXACT_SIZE; fbo = glamor_pixmap_fbo_cache_get(glamor_priv, w, h, format, cache_flag); if (fbo) return fbo; fbo = calloc(1, sizeof(*fbo)); if (fbo == NULL) return NULL; list_init(&fbo->list); dispatch = glamor_get_dispatch(glamor_priv); dispatch->glGenTextures(1, &tex); dispatch->glBindTexture(GL_TEXTURE_2D, tex); dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); dispatch->glTexImage2D(GL_TEXTURE_2D, 0, format, w, h, 0, format, GL_UNSIGNED_BYTE, NULL); glamor_put_dispatch(glamor_priv); fbo->tex = tex; fbo->width = w; fbo->height = h; fbo->format = format; fbo->glamor_priv = glamor_priv; return fbo; } void glamor_destroy_tex_obj(glamor_pixmap_fbo * tex_obj) { assert(tex_obj->fb == 0); list_del(&tex_obj->list); glamor_pixmap_fbo_cache_put(tex_obj); } glamor_pixmap_fbo * glamor_create_fbo(glamor_screen_private *glamor_priv, int w, int h, int depth, int flag) { glamor_gl_dispatch *dispatch; glamor_pixmap_fbo *fbo; GLenum format; GLint tex; int cache_flag; if (!glamor_check_fbo_size(glamor_priv, w, h) || !glamor_check_fbo_depth(depth)) return NULL; if (flag == GLAMOR_CREATE_FBO_NO_FBO) goto new_fbo; if (flag == GLAMOR_CREATE_PIXMAP_FIXUP) cache_flag = GLAMOR_CACHE_EXACT_SIZE; else cache_flag = 0; gl_iformat_for_depth(depth, &format); fbo = glamor_pixmap_fbo_cache_get(glamor_priv, w, h, format, cache_flag); if (fbo) return fbo; new_fbo: dispatch = glamor_get_dispatch(glamor_priv); dispatch->glGenTextures(1, &tex); dispatch->glBindTexture(GL_TEXTURE_2D, tex); dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); dispatch->glTexImage2D(GL_TEXTURE_2D, 0, format, w, h, 0, format, GL_UNSIGNED_BYTE, NULL); fbo = glamor_create_fbo_from_tex(glamor_priv, w, h, depth, tex, flag); glamor_put_dispatch(glamor_priv); return fbo; } glamor_pixmap_fbo * glamor_pixmap_detach_fbo(glamor_pixmap_private *pixmap_priv) { glamor_pixmap_fbo *fbo; if (pixmap_priv == NULL) return NULL; fbo = pixmap_priv->fbo; if (fbo == NULL) return NULL; pixmap_priv->fbo = NULL; return fbo; } /* The pixmap must not be attached to another fbo. */ void glamor_pixmap_attach_fbo(PixmapPtr pixmap, glamor_pixmap_fbo *fbo) { glamor_pixmap_private *pixmap_priv; pixmap_priv = glamor_get_pixmap_private(pixmap); if (pixmap_priv == NULL) { glamor_screen_private *glamor_priv; glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen); pixmap_priv = calloc(1, sizeof(*pixmap_priv)); dixSetPrivate(&pixmap->devPrivates, glamor_pixmap_private_key, pixmap_priv); pixmap_priv->container = pixmap; pixmap_priv->glamor_priv = glamor_priv; pixmap_priv->type = GLAMOR_MEMORY; } if (pixmap_priv->fbo) return; pixmap_priv->fbo = fbo; switch (pixmap_priv->type) { case GLAMOR_TEXTURE_ONLY: case GLAMOR_TEXTURE_DRM: pixmap_priv->gl_fbo = 1; if (fbo->tex != 0) pixmap_priv->gl_tex = 1; else { /* XXX For the Xephyr only, may be broken now.*/ pixmap_priv->gl_tex = 0; } pixmap->devPrivate.ptr = NULL; break; default: break; } }