diff options
Diffstat (limited to 'src/gallium/drivers/nvfx/nvfx_transfer.c')
| -rw-r--r-- | src/gallium/drivers/nvfx/nvfx_transfer.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_transfer.c b/src/gallium/drivers/nvfx/nvfx_transfer.c new file mode 100644 index 00000000000..409b354d582 --- /dev/null +++ b/src/gallium/drivers/nvfx/nvfx_transfer.c @@ -0,0 +1,182 @@ +#include "pipe/p_state.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "util/u_format.h" +#include "util/u_memory.h" +#include "util/u_math.h" +#include "nouveau/nouveau_winsys.h" +#include "nvfx_context.h" +#include "nvfx_screen.h" +#include "nvfx_state.h" + +struct nvfx_transfer { + struct pipe_transfer base; + struct pipe_surface *surface; + boolean direct; +}; + +static void +nvfx_compatible_transfer_tex(struct pipe_texture *pt, unsigned width, unsigned height, + struct pipe_texture *template) +{ + memset(template, 0, sizeof(struct pipe_texture)); + template->target = pt->target; + template->format = pt->format; + template->width0 = width; + template->height0 = height; + template->depth0 = 1; + template->last_level = 0; + template->nr_samples = pt->nr_samples; + + template->tex_usage = PIPE_TEXTURE_USAGE_DYNAMIC | + NOUVEAU_TEXTURE_USAGE_LINEAR; +} + +static struct pipe_transfer * +nvfx_transfer_new(struct pipe_context *pcontext, struct pipe_texture *pt, + unsigned face, unsigned level, unsigned zslice, + enum pipe_transfer_usage usage, + unsigned x, unsigned y, unsigned w, unsigned h) +{ + struct pipe_screen *pscreen = pcontext->screen; + struct nvfx_miptree *mt = (struct nvfx_miptree *)pt; + struct nvfx_transfer *tx; + struct pipe_texture tx_tex_template, *tx_tex; + + tx = CALLOC_STRUCT(nvfx_transfer); + if (!tx) + return NULL; + + pipe_texture_reference(&tx->base.texture, pt); + tx->base.x = x; + tx->base.y = y; + tx->base.width = w; + tx->base.height = h; + 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, + pipe_transfer_buffer_flags(&tx->base)); + return &tx->base; + } + + tx->direct = false; + + nvfx_compatible_transfer_tex(pt, w, h, &tx_tex_template); + + tx_tex = pscreen->texture_create(pscreen, &tx_tex_template); + if (!tx_tex) + { + FREE(tx); + return NULL; + } + + tx->base.stride = ((struct nvfx_miptree*)tx_tex)->level[0].pitch; + + tx->surface = pscreen->get_tex_surface(pscreen, tx_tex, + 0, 0, 0, + pipe_transfer_buffer_flags(&tx->base)); + + pipe_texture_reference(&tx_tex, NULL); + + if (!tx->surface) + { + pipe_surface_reference(&tx->surface, NULL); + FREE(tx); + return NULL; + } + + if (usage & PIPE_TRANSFER_READ) { + struct nvfx_screen *nvscreen = nvfx_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, x, y, + w, h); + + pipe_surface_reference(&src, NULL); + } + + return &tx->base; +} + +static void +nvfx_transfer_del(struct pipe_context *pcontext, + struct pipe_transfer *ptx) +{ + struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx; + + if (!tx->direct && (ptx->usage & PIPE_TRANSFER_WRITE)) { + struct pipe_screen *pscreen = pcontext->screen; + struct nvfx_screen *nvscreen = nvfx_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 | NOUVEAU_BUFFER_USAGE_NO_RENDER); + + /* TODO: Check if SIFM can deal with x,y,w,h when swizzling */ + nvscreen->eng2d->copy(nvscreen->eng2d, + dst, tx->base.x, tx->base.y, + tx->surface, 0, 0, + tx->base.width, tx->base.height); + + pipe_surface_reference(&dst, NULL); + } + + pipe_surface_reference(&tx->surface, NULL); + pipe_texture_reference(&ptx->texture, NULL); + FREE(ptx); +} + +static void * +nvfx_transfer_map(struct pipe_context *pcontext, struct pipe_transfer *ptx) +{ + struct pipe_screen *pscreen = pcontext->screen; + struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx; + struct nv04_surface *ns = (struct nv04_surface *)tx->surface; + struct nvfx_miptree *mt = (struct nvfx_miptree *)tx->surface->texture; + void *map = pipe_buffer_map(pscreen, mt->buffer, + pipe_transfer_buffer_flags(ptx)); + + if(!tx->direct) + return map + ns->base.offset; + else + return map + ns->base.offset + ptx->y * ns->pitch + ptx->x * util_format_get_blocksize(ptx->texture->format); +} + +static void +nvfx_transfer_unmap(struct pipe_context *pcontext, struct pipe_transfer *ptx) +{ + struct pipe_screen *pscreen = pcontext->screen; + struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx; + struct nvfx_miptree *mt = (struct nvfx_miptree *)tx->surface->texture; + + pipe_buffer_unmap(pscreen, mt->buffer); +} + +void +nvfx_init_transfer_functions(struct nvfx_context *nvfx) +{ + nvfx->pipe.get_tex_transfer = nvfx_transfer_new; + nvfx->pipe.tex_transfer_destroy = nvfx_transfer_del; + nvfx->pipe.transfer_map = nvfx_transfer_map; + nvfx->pipe.transfer_unmap = nvfx_transfer_unmap; +} |