--- /dev/null
+#include <pipe/p_state.h>
+#include <pipe/p_defines.h>
+#include <pipe/p_inlines.h>
+#include <util/u_memory.h>
+#include <nouveau/nouveau_winsys.h>
+#include "nv20_context.h"
+#include "nv20_screen.h"
+#include "nv20_state.h"
+
+struct nv20_transfer {
+ struct pipe_transfer base;
+ struct pipe_surface *surface;
+ bool direct;
+};
+
+static unsigned nv20_usage_tx_to_buf(unsigned tx_usage)
+{
+ switch (tx_usage) {
+ case PIPE_TRANSFER_READ:
+ return PIPE_BUFFER_USAGE_CPU_READ;
+ case PIPE_TRANSFER_WRITE:
+ return PIPE_BUFFER_USAGE_CPU_WRITE;
+ case PIPE_TRANSFER_READ_WRITE:
+ return PIPE_BUFFER_USAGE_CPU_READ_WRITE;
+ default:
+ assert(0);
+ }
+
+ return -1;
+}
+
+static void
+nv20_compatible_transfer_tex(struct pipe_texture *pt, unsigned level,
+ struct pipe_texture *template)
+{
+ memset(template, 0, sizeof(struct pipe_texture));
+ template->target = pt->target;
+ template->format = pt->format;
+ template->width[0] = pt->width[level];
+ template->height[0] = pt->height[level];
+ template->depth[0] = 1;
+ template->block = pt->block;
+ template->nblocksx[0] = pt->nblocksx[level];
+ template->nblocksy[0] = pt->nblocksx[level];
+ template->last_level = 0;
+ template->compressed = pt->compressed;
+ template->nr_samples = pt->nr_samples;
+
+ template->tex_usage = PIPE_TEXTURE_USAGE_DYNAMIC |
+ NOUVEAU_TEXTURE_USAGE_LINEAR;
+}
+
+static struct pipe_transfer *
+nv20_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
+ unsigned face, unsigned level, unsigned zslice,
+ enum pipe_transfer_usage usage,
+ unsigned x, unsigned y, unsigned w, unsigned h)
+{
+ struct nv20_miptree *mt = (struct nv20_miptree *)pt;
+ struct nv20_transfer *tx;
+ struct pipe_texture tx_tex_template, *tx_tex;
+
+ tx = CALLOC_STRUCT(nv20_transfer);
+ if (!tx)
+ return NULL;
+
+ tx->base.refcount = 1;
+ pipe_texture_reference(&tx->base.texture, pt);
+ tx->base.format = pt->format;
+ tx->base.x = x;
+ tx->base.y = y;
+ tx->base.width = w;
+ tx->base.height = h;
+ tx->base.block = pt->block;
+ tx->base.nblocksx = pt->nblocksx[level];
+ tx->base.nblocksy = pt->nblocksy[level];
+ tx->base.stride = mt->level[level].pitch;
+ tx->base.usage = usage;
+ tx->base.face = face;
+ tx->base.level = level;
+ tx->base.zslice = zslice;
+
+ /* Direct access to texture */
+ if ((pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC ||
+ debug_get_bool_option("NOUVEAU_NO_TRANSFER", TRUE/*XXX:FALSE*/)) &&
+ pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)
+ {
+ tx->direct = true;
+ tx->surface = pscreen->get_tex_surface(pscreen, pt,
+ face, level, zslice,
+ nv20_usage_tx_to_buf(usage));
+ return &tx->base;
+ }
+
+ tx->direct = false;
+
+ nv20_compatible_transfer_tex(pt, level, &tx_tex_template);
+
+ tx_tex = pscreen->texture_create(pscreen, &tx_tex_template);
+ if (!tx_tex)
+ {
+ FREE(tx);
+ return NULL;
+ }
+
+ tx->surface = pscreen->get_tex_surface(pscreen, tx_tex,
+ face, level, zslice,
+ nv20_usage_tx_to_buf(usage));
+
+ pipe_texture_reference(&tx_tex, NULL);
+
+ if (!tx->surface)
+ {
+ pipe_surface_reference(&tx->surface, NULL);
+ FREE(tx);
+ return NULL;
+ }
+
+ if (usage != PIPE_TRANSFER_WRITE) {
+ struct nv20_screen *nvscreen = nv20_screen(pscreen);
+ struct pipe_surface *src;
+
+ src = pscreen->get_tex_surface(pscreen, pt,
+ face, level, zslice,
+ PIPE_BUFFER_USAGE_GPU_READ);
+
+ /* TODO: Check if SIFM can deal with x,y,w,h when swizzling */
+ /* TODO: Check if SIFM can un-swizzle */
+ nvscreen->eng2d->copy(nvscreen->eng2d,
+ tx->surface, 0, 0,
+ src, 0, 0,
+ src->width, src->height);
+
+ pipe_surface_reference(&src, NULL);
+ }
+
+ return &tx->base;
+}
+
+static void
+nv20_transfer_del(struct pipe_screen *pscreen, struct pipe_transfer **pptx)
+{
+ struct pipe_transfer *ptx = *pptx;
+ struct nv20_transfer *tx = (struct nv20_transfer *)ptx;
+
+ if (!tx->direct && ptx->usage != PIPE_TRANSFER_READ) {
+ struct nv20_screen *nvscreen = nv20_screen(pscreen);
+ struct pipe_surface *dst;
+
+ dst = pscreen->get_tex_surface(pscreen, ptx->texture,
+ ptx->face, ptx->level, ptx->zslice,
+ PIPE_BUFFER_USAGE_GPU_WRITE);
+
+ /* TODO: Check if SIFM can deal with x,y,w,h when swizzling */
+ nvscreen->eng2d->copy(nvscreen->eng2d,
+ dst, 0, 0,
+ tx->surface, 0, 0,
+ dst->width, dst->height);
+
+ pipe_surface_reference(&dst, NULL);
+ }
+
+ *pptx = NULL;
+ if (--ptx->refcount)
+ return;
+
+ pipe_surface_reference(&tx->surface, NULL);
+ pipe_texture_reference(&ptx->texture, NULL);
+ FREE(ptx);
+}
+
+static void *
+nv20_transfer_map(struct pipe_screen *pscreen, struct pipe_transfer *ptx)
+{
+ struct nv20_transfer *tx = (struct nv20_transfer *)ptx;
+ struct nv04_surface *ns = (struct nv04_surface *)tx->surface;
+ struct nv20_miptree *mt = (struct nv20_miptree *)tx->surface->texture;
+ void *map = pipe_buffer_map(pscreen, mt->buffer,
+ nv20_usage_tx_to_buf(ptx->usage));
+
+ return map + ns->base.offset +
+ ptx->y * ns->pitch + ptx->x * ptx->block.size;
+}
+
+static void
+nv20_transfer_unmap(struct pipe_screen *pscreen, struct pipe_transfer *ptx)
+{
+ struct nv20_transfer *tx = (struct nv20_transfer *)ptx;
+ struct nv20_miptree *mt = (struct nv20_miptree *)tx->surface->texture;
+
+ pipe_buffer_unmap(pscreen, mt->buffer);
+}
+
+void
+nv20_screen_init_transfer_functions(struct pipe_screen *pscreen)
+{
+ pscreen->get_tex_transfer = nv20_transfer_new;
+ pscreen->tex_transfer_release = nv20_transfer_del;
+ pscreen->transfer_map = nv20_transfer_map;
+ pscreen->transfer_unmap = nv20_transfer_unmap;
+}
projects / mesa.git / blobdiff