diff options
Diffstat (limited to 'src/gallium/drivers/nvfx/nvfx_miptree.c')
| -rw-r--r-- | src/gallium/drivers/nvfx/nvfx_miptree.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_miptree.c b/src/gallium/drivers/nvfx/nvfx_miptree.c new file mode 100644 index 0000000000..9de25175e7 --- /dev/null +++ b/src/gallium/drivers/nvfx/nvfx_miptree.c @@ -0,0 +1,250 @@ +#include "pipe/p_state.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "util/u_format.h" +#include "util/u_math.h" + +#include "nvfx_context.h" +#include "nv04_surface_2d.h" + + + +static void +nvfx_miptree_layout(struct nvfx_miptree *mt) +{ + struct pipe_texture *pt = &mt->base; + uint width = pt->width0; + uint offset = 0; + int nr_faces, l, f; + uint wide_pitch = pt->tex_usage & (PIPE_TEXTURE_USAGE_SAMPLER | + PIPE_TEXTURE_USAGE_DEPTH_STENCIL | + PIPE_TEXTURE_USAGE_RENDER_TARGET | + PIPE_TEXTURE_USAGE_DISPLAY_TARGET | + PIPE_TEXTURE_USAGE_SCANOUT); + + if (pt->target == PIPE_TEXTURE_CUBE) { + nr_faces = 6; + } else + if (pt->target == PIPE_TEXTURE_3D) { + nr_faces = pt->depth0; + } else { + nr_faces = 1; + } + + for (l = 0; l <= pt->last_level; l++) { + if (wide_pitch && (pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) + mt->level[l].pitch = align(util_format_get_stride(pt->format, pt->width0), 64); + else + mt->level[l].pitch = util_format_get_stride(pt->format, width); + + mt->level[l].image_offset = + CALLOC(nr_faces, sizeof(unsigned)); + + width = u_minify(width, 1); + } + + for (f = 0; f < nr_faces; f++) { + for (l = 0; l < pt->last_level; l++) { + mt->level[l].image_offset[f] = offset; + + if (!(pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR) && + u_minify(pt->width0, l + 1) > 1 && u_minify(pt->height0, l + 1) > 1) + offset += align(mt->level[l].pitch * u_minify(pt->height0, l), 64); + else + offset += mt->level[l].pitch * u_minify(pt->height0, l); + } + + mt->level[l].image_offset[f] = offset; + offset += mt->level[l].pitch * u_minify(pt->height0, l); + } + + mt->total_size = offset; +} + +static struct pipe_texture * +nvfx_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt) +{ + struct nvfx_miptree *mt; + unsigned buf_usage = PIPE_BUFFER_USAGE_PIXEL | + NOUVEAU_BUFFER_USAGE_TEXTURE; + static int no_swizzle = -1; + if(no_swizzle < 0) + no_swizzle = debug_get_bool_option("NOUVEAU_NO_SWIZZLE", FALSE); + + mt = MALLOC(sizeof(struct nvfx_miptree)); + if (!mt) + return NULL; + mt->base = *pt; + pipe_reference_init(&mt->base.reference, 1); + mt->base.screen = pscreen; + + /* Swizzled textures must be POT */ + if (pt->width0 & (pt->width0 - 1) || + pt->height0 & (pt->height0 - 1)) + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + else + if (pt->tex_usage & (PIPE_TEXTURE_USAGE_SCANOUT | + PIPE_TEXTURE_USAGE_DISPLAY_TARGET | + PIPE_TEXTURE_USAGE_DEPTH_STENCIL)) + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + else + if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC) + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + else { + switch (pt->format) { + case PIPE_FORMAT_B5G6R5_UNORM: + case PIPE_FORMAT_L8A8_UNORM: + case PIPE_FORMAT_A8_UNORM: + case PIPE_FORMAT_L8_UNORM: + case PIPE_FORMAT_I8_UNORM: + /* TODO: we can actually swizzle these formats on nv40, we + are just preserving the pre-unification behavior. + The whole 2D code is going to be rewritten anyway. */ + if(nvfx_screen(pscreen)->is_nv4x) { + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + break; + } + /* TODO: Figure out which formats can be swizzled */ + case PIPE_FORMAT_B8G8R8A8_UNORM: + case PIPE_FORMAT_B8G8R8X8_UNORM: + case PIPE_FORMAT_R16_SNORM: + { + if (no_swizzle) + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + break; + } + default: + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + } + } + + if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC) + buf_usage |= PIPE_BUFFER_USAGE_CPU_READ_WRITE; + + /* apparently we can't render to swizzled surfaces smaller than 64 bytes, so make them linear. + * If the user did not ask for a render target, they can still render to it, but it will cost them an extra copy. + * This also happens for small mipmaps of large textures. */ + if (pt->tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET && util_format_get_stride(pt->format, pt->width0) < 64) + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + + nvfx_miptree_layout(mt); + + mt->buffer = pscreen->buffer_create(pscreen, 256, buf_usage, mt->total_size); + if (!mt->buffer) { + FREE(mt); + return NULL; + } + mt->bo = nouveau_bo(mt->buffer); + return &mt->base; +} + +static struct pipe_texture * +nvfx_miptree_blanket(struct pipe_screen *pscreen, const struct pipe_texture *pt, + const unsigned *stride, struct pipe_buffer *pb) +{ + struct nvfx_miptree *mt; + + /* Only supports 2D, non-mipmapped textures for the moment */ + if (pt->target != PIPE_TEXTURE_2D || pt->last_level != 0 || + pt->depth0 != 1) + return NULL; + + mt = CALLOC_STRUCT(nvfx_miptree); + if (!mt) + return NULL; + + mt->base = *pt; + pipe_reference_init(&mt->base.reference, 1); + mt->base.screen = pscreen; + mt->level[0].pitch = stride[0]; + mt->level[0].image_offset = CALLOC(1, sizeof(unsigned)); + + /* Assume whoever created this buffer expects it to be linear for now */ + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + + pipe_buffer_reference(&mt->buffer, pb); + mt->bo = nouveau_bo(mt->buffer); + return &mt->base; +} + +static void +nvfx_miptree_destroy(struct pipe_texture *pt) +{ + struct nvfx_miptree *mt = (struct nvfx_miptree *)pt; + int l; + + pipe_buffer_reference(&mt->buffer, NULL); + for (l = 0; l <= pt->last_level; l++) { + if (mt->level[l].image_offset) + FREE(mt->level[l].image_offset); + } + + FREE(mt); +} + +static struct pipe_surface * +nvfx_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt, + unsigned face, unsigned level, unsigned zslice, + unsigned flags) +{ + struct nvfx_miptree *mt = (struct nvfx_miptree *)pt; + struct nv04_surface *ns; + + ns = CALLOC_STRUCT(nv04_surface); + if (!ns) + return NULL; + pipe_texture_reference(&ns->base.texture, pt); + ns->base.format = pt->format; + ns->base.width = u_minify(pt->width0, level); + ns->base.height = u_minify(pt->height0, level); + ns->base.usage = flags; + pipe_reference_init(&ns->base.reference, 1); + ns->base.face = face; + ns->base.level = level; + ns->base.zslice = zslice; + ns->pitch = mt->level[level].pitch; + + if (pt->target == PIPE_TEXTURE_CUBE) { + ns->base.offset = mt->level[level].image_offset[face]; + } else + if (pt->target == PIPE_TEXTURE_3D) { + ns->base.offset = mt->level[level].image_offset[zslice]; + } else { + ns->base.offset = mt->level[level].image_offset[0]; + } + + /* create a linear temporary that we can render into if necessary. + * Note that ns->pitch is always a multiple of 64 for linear surfaces and swizzled surfaces are POT, so + * ns->pitch & 63 is equivalent to (ns->pitch < 64 && swizzled)*/ + if((ns->pitch & 63) && (ns->base.usage & (PIPE_BUFFER_USAGE_GPU_WRITE | NOUVEAU_BUFFER_USAGE_NO_RENDER)) == PIPE_BUFFER_USAGE_GPU_WRITE) + return &nv04_surface_wrap_for_render(pscreen, ((struct nvfx_screen*)pscreen)->eng2d, ns)->base; + + return &ns->base; +} + +static void +nvfx_miptree_surface_del(struct pipe_surface *ps) +{ + struct nv04_surface* ns = (struct nv04_surface*)ps; + if(ns->backing) + { + struct nvfx_screen* screen = (struct nvfx_screen*)ps->texture->screen; + if(ns->backing->base.usage & PIPE_BUFFER_USAGE_GPU_WRITE) + screen->eng2d->copy(screen->eng2d, &ns->backing->base, 0, 0, ps, 0, 0, ns->base.width, ns->base.height); + nvfx_miptree_surface_del(&ns->backing->base); + } + + pipe_texture_reference(&ps->texture, NULL); + FREE(ps); +} + +void +nvfx_screen_init_miptree_functions(struct pipe_screen *pscreen) +{ + pscreen->texture_create = nvfx_miptree_create; + pscreen->texture_destroy = nvfx_miptree_destroy; + pscreen->get_tex_surface = nvfx_miptree_surface_new; + pscreen->tex_surface_destroy = nvfx_miptree_surface_del; + + nouveau_screen(pscreen)->texture_blanket = nvfx_miptree_blanket; +} |