diff options
Diffstat (limited to 'src/gallium/drivers/nv04')
| -rw-r--r-- | src/gallium/drivers/nv04/nv04_surface_2d.c | 46 | ||||
| -rw-r--r-- | src/gallium/drivers/nv04/nv04_surface_2d.h | 4 |
2 files changed, 50 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv04/nv04_surface_2d.c b/src/gallium/drivers/nv04/nv04_surface_2d.c index 12df7fd199..819f45e96a 100644 --- a/src/gallium/drivers/nv04/nv04_surface_2d.c +++ b/src/gallium/drivers/nv04/nv04_surface_2d.c @@ -491,3 +491,49 @@ nv04_surface_2d_init(struct nouveau_screen *screen) ctx->fill = nv04_surface_fill; return ctx; } + +struct nv04_surface* +nv04_surface_wrap_for_render(struct pipe_screen *pscreen, struct nv04_surface_2d* eng2d, struct nv04_surface* ns) +{ + int temp_flags; + + // printf("creating temp, flags is %i!\n", flags); + + if(ns->base.usage & PIPE_BUFFER_USAGE_DISCARD) + { + temp_flags = ns->base.usage | PIPE_BUFFER_USAGE_GPU_READ; + ns->base.usage = PIPE_BUFFER_USAGE_GPU_WRITE | NOUVEAU_BUFFER_USAGE_NO_RENDER | PIPE_BUFFER_USAGE_DISCARD; + } + else + { + temp_flags = ns->base.usage | PIPE_BUFFER_USAGE_GPU_READ | PIPE_BUFFER_USAGE_GPU_WRITE; + ns->base.usage = PIPE_BUFFER_USAGE_GPU_WRITE | NOUVEAU_BUFFER_USAGE_NO_RENDER | PIPE_BUFFER_USAGE_GPU_READ; + } + + struct nv40_screen* screen = (struct nv40_screen*)pscreen; + ns->base.usage = PIPE_BUFFER_USAGE_GPU_READ | PIPE_BUFFER_USAGE_GPU_WRITE; + + struct pipe_texture templ; + memset(&templ, 0, sizeof(templ)); + templ.format = ns->base.texture->format; + templ.target = PIPE_TEXTURE_2D; + templ.width0 = ns->base.width; + templ.height0 = ns->base.height; + templ.depth0 = 1; + templ.last_level = 0; + + // TODO: this is probably wrong and we should specifically handle multisampling somehow once it is implemented + templ.nr_samples = ns->base.texture->nr_samples; + + templ.tex_usage = ns->base.texture->tex_usage | PIPE_TEXTURE_USAGE_RENDER_TARGET; + + struct pipe_texture* temp_tex = pscreen->texture_create(pscreen, &templ); + struct nv04_surface* temp_ns = (struct nv04_surface*)pscreen->get_tex_surface(pscreen, temp_tex, 0, 0, 0, temp_flags); + temp_ns->backing = ns; + + if(ns->base.usage & PIPE_BUFFER_USAGE_GPU_READ) + eng2d->copy(eng2d, &temp_ns->backing->base, 0, 0, &ns->base, 0, 0, ns->base.width, ns->base.height); + + return temp_ns; +} + diff --git a/src/gallium/drivers/nv04/nv04_surface_2d.h b/src/gallium/drivers/nv04/nv04_surface_2d.h index 02b3f56ba8..ce696a11a3 100644 --- a/src/gallium/drivers/nv04/nv04_surface_2d.h +++ b/src/gallium/drivers/nv04/nv04_surface_2d.h @@ -4,6 +4,7 @@ struct nv04_surface { struct pipe_surface base; unsigned pitch; + struct nv04_surface* backing; }; struct nv04_surface_2d { @@ -30,4 +31,7 @@ nv04_surface_2d_init(struct nouveau_screen *screen); void nv04_surface_2d_takedown(struct nv04_surface_2d **); +struct nv04_surface* +nv04_surface_wrap_for_render(struct pipe_screen *pscreen, struct nv04_surface_2d* eng2d, struct nv04_surface* ns); + #endif |