diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_texture.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_texture.c | 593 |
1 files changed, 138 insertions, 455 deletions
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 711042722cc..e99a4630ee4 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -26,6 +26,7 @@ #include "r300_context.h" #include "r300_reg.h" +#include "r300_texture_desc.h" #include "r300_transfer.h" #include "r300_screen.h" #include "r300_winsys.h" @@ -37,11 +38,6 @@ #include "pipe/p_screen.h" -enum r300_dim { - DIM_WIDTH = 0, - DIM_HEIGHT = 1 -}; - unsigned r300_get_swizzle_combined(const unsigned char *swizzle_format, const unsigned char *swizzle_view) { @@ -544,17 +540,17 @@ static void r300_texture_setup_immutable_state(struct r300_screen* screen, struct r300_texture* tex) { struct r300_texture_format_state* f = &tex->tx_format; - struct pipe_resource *pt = &tex->b.b; + struct pipe_resource *pt = &tex->desc.b.b; boolean is_r500 = screen->caps.is_r500; /* Set sampler state. */ f->format0 = R300_TX_WIDTH((pt->width0 - 1) & 0x7ff) | R300_TX_HEIGHT((pt->height0 - 1) & 0x7ff); - if (tex->uses_pitch) { + if (tex->desc.uses_stride_addressing) { /* rectangles love this */ f->format0 |= R300_TX_PITCH_EN; - f->format2 = (tex->hwpitch[0] - 1) & 0x1fff; + f->format2 = (tex->desc.stride_in_pixels[0] - 1) & 0x1fff; } else { /* power of two textures (3D, mipmaps, and no pitch) */ f->format0 |= R300_TX_DEPTH(util_logbase2(pt->depth0) & 0xf); @@ -579,8 +575,8 @@ static void r300_texture_setup_immutable_state(struct r300_screen* screen, } } - f->tile_config = R300_TXO_MACRO_TILE(tex->macrotile) | - R300_TXO_MICRO_TILE(tex->microtile); + f->tile_config = R300_TXO_MACRO_TILE(tex->desc.macrotile[0]) | + R300_TXO_MICRO_TILE(tex->desc.microtile); } static void r300_texture_setup_fb_state(struct r300_screen* screen, @@ -589,23 +585,23 @@ static void r300_texture_setup_fb_state(struct r300_screen* screen, unsigned i; /* Set framebuffer state. */ - if (util_format_is_depth_or_stencil(tex->b.b.format)) { - for (i = 0; i <= tex->b.b.last_level; i++) { + if (util_format_is_depth_or_stencil(tex->desc.b.b.format)) { + for (i = 0; i <= tex->desc.b.b.last_level; i++) { tex->fb_state.pitch[i] = - tex->hwpitch[i] | - R300_DEPTHMACROTILE(tex->mip_macrotile[i]) | - R300_DEPTHMICROTILE(tex->microtile); + tex->desc.stride_in_pixels[i] | + R300_DEPTHMACROTILE(tex->desc.macrotile[i]) | + R300_DEPTHMICROTILE(tex->desc.microtile); } - tex->fb_state.format = r300_translate_zsformat(tex->b.b.format); + tex->fb_state.format = r300_translate_zsformat(tex->desc.b.b.format); } else { - for (i = 0; i <= tex->b.b.last_level; i++) { + for (i = 0; i <= tex->desc.b.b.last_level; i++) { tex->fb_state.pitch[i] = - tex->hwpitch[i] | - r300_translate_colorformat(tex->b.b.format) | - R300_COLOR_TILE(tex->mip_macrotile[i]) | - R300_COLOR_MICROTILE(tex->microtile); + tex->desc.stride_in_pixels[i] | + r300_translate_colorformat(tex->desc.b.b.format) | + R300_COLOR_TILE(tex->desc.macrotile[i]) | + R300_COLOR_MICROTILE(tex->desc.microtile); } - tex->fb_state.format = r300_translate_out_fmt(tex->b.b.format); + tex->fb_state.format = r300_translate_out_fmt(tex->desc.b.b.format); } } @@ -625,286 +621,6 @@ void r300_texture_reinterpret_format(struct pipe_screen *screen, r300_texture_setup_fb_state(r300_screen(screen), r300_texture(tex)); } -unsigned r300_texture_get_offset(struct r300_texture* tex, unsigned level, - unsigned zslice, unsigned face) -{ - unsigned offset = tex->offset[level]; - - switch (tex->b.b.target) { - case PIPE_TEXTURE_3D: - assert(face == 0); - return offset + zslice * tex->layer_size[level]; - - case PIPE_TEXTURE_CUBE: - assert(zslice == 0); - return offset + face * tex->layer_size[level]; - - default: - assert(zslice == 0 && face == 0); - return offset; - } -} - -/* Returns the number of pixels that the texture should be aligned to - * in the given dimension. */ -static unsigned r300_get_pixel_alignment(struct r300_texture *tex, - enum r300_buffer_tiling macrotile, - enum r300_dim dim) -{ - static const unsigned table[2][5][3][2] = - { - { - /* Macro: linear linear linear - Micro: linear tiled square-tiled */ - {{ 32, 1}, { 8, 4}, { 0, 0}}, /* 8 bits per pixel */ - {{ 16, 1}, { 8, 2}, { 4, 4}}, /* 16 bits per pixel */ - {{ 8, 1}, { 4, 2}, { 0, 0}}, /* 32 bits per pixel */ - {{ 4, 1}, { 0, 0}, { 2, 2}}, /* 64 bits per pixel */ - {{ 2, 1}, { 0, 0}, { 0, 0}} /* 128 bits per pixel */ - }, - { - /* Macro: tiled tiled tiled - Micro: linear tiled square-tiled */ - {{256, 8}, {64, 32}, { 0, 0}}, /* 8 bits per pixel */ - {{128, 8}, {64, 16}, {32, 32}}, /* 16 bits per pixel */ - {{ 64, 8}, {32, 16}, { 0, 0}}, /* 32 bits per pixel */ - {{ 32, 8}, { 0, 0}, {16, 16}}, /* 64 bits per pixel */ - {{ 16, 8}, { 0, 0}, { 0, 0}} /* 128 bits per pixel */ - } - }; - static const unsigned aa_block[2] = {4, 8}; - unsigned res = 0; - unsigned pixsize = util_format_get_blocksize(tex->b.b.format); - - assert(macrotile <= R300_BUFFER_TILED); - assert(tex->microtile <= R300_BUFFER_SQUARETILED); - assert(pixsize <= 16); - assert(dim <= DIM_HEIGHT); - - if (tex->b.b.nr_samples > 1) { - /* Multisampled textures have their own alignment scheme. */ - if (pixsize == 4) - res = aa_block[dim]; - } else { - /* Standard alignment. */ - res = table[macrotile][util_logbase2(pixsize)][tex->microtile][dim]; - } - - assert(res); - return res; -} - -/* Return true if macrotiling should be enabled on the miplevel. */ -static boolean r300_texture_macro_switch(struct r300_texture *tex, - unsigned level, - boolean rv350_mode, - enum r300_dim dim) -{ - unsigned tile, texdim; - - tile = r300_get_pixel_alignment(tex, R300_BUFFER_TILED, dim); - if (dim == DIM_WIDTH) { - texdim = u_minify(tex->b.b.width0, level); - } else { - texdim = u_minify(tex->b.b.height0, level); - } - - /* See TX_FILTER1_n.MACRO_SWITCH. */ - if (rv350_mode) { - return texdim >= tile; - } else { - return texdim > tile; - } -} - -/** - * Return the stride, in bytes, of the texture images of the given texture - * at the given level. - */ -unsigned r300_texture_get_stride(struct r300_screen* screen, - struct r300_texture* tex, unsigned level) -{ - unsigned tile_width, width, stride; - - if (tex->stride_override) - return tex->stride_override; - - /* Check the level. */ - if (level > tex->b.b.last_level) { - SCREEN_DBG(screen, DBG_TEX, "%s: level (%u) > last_level (%u)\n", - __FUNCTION__, level, tex->b.b.last_level); - return 0; - } - - width = u_minify(tex->b.b.width0, level); - - if (util_format_is_plain(tex->b.b.format)) { - tile_width = r300_get_pixel_alignment(tex, tex->mip_macrotile[level], - DIM_WIDTH); - width = align(width, tile_width); - - stride = util_format_get_stride(tex->b.b.format, width); - - /* Some IGPs need a minimum stride of 64 bytes, hmm... - * This doesn't seem to apply to tiled textures, according to r300c. */ - if (!tex->microtile && !tex->mip_macrotile[level] && - (screen->caps.family == CHIP_FAMILY_RS600 || - screen->caps.family == CHIP_FAMILY_RS690 || - screen->caps.family == CHIP_FAMILY_RS740)) { - return stride < 64 ? 64 : stride; - } - - /* The alignment to 32 bytes is sort of implied by the layout... */ - return stride; - } else { - return align(util_format_get_stride(tex->b.b.format, width), 32); - } -} - -static unsigned r300_texture_get_nblocksy(struct r300_texture* tex, - unsigned level) -{ - unsigned height, tile_height; - - height = u_minify(tex->b.b.height0, level); - - if (util_format_is_plain(tex->b.b.format)) { - tile_height = r300_get_pixel_alignment(tex, tex->mip_macrotile[level], - DIM_HEIGHT); - height = align(height, tile_height); - - /* This is needed for the kernel checker, unfortunately. */ - if ((tex->b.b.target != PIPE_TEXTURE_1D && - tex->b.b.target != PIPE_TEXTURE_2D) || - tex->b.b.last_level != 0) { - height = util_next_power_of_two(height); - } - } - - return util_format_get_nblocksy(tex->b.b.format, height); -} - -static void r300_texture_3d_fix_mipmapping(struct r300_screen *screen, - struct r300_texture *tex) -{ - /* The kernels <= 2.6.34-rc4 compute the size of mipmapped 3D textures - * incorrectly. This is a workaround to prevent CS from being rejected. */ - - unsigned i, size; - - if (!screen->rws->get_value(screen->rws, R300_VID_DRM_2_3_0) && - tex->b.b.target == PIPE_TEXTURE_3D && - tex->b.b.last_level > 0) { - size = 0; - - for (i = 0; i <= tex->b.b.last_level; i++) { - size += r300_texture_get_stride(screen, tex, i) * - r300_texture_get_nblocksy(tex, i); - } - - size *= tex->b.b.depth0; - tex->size = size; - } -} - -static void r300_setup_miptree(struct r300_screen* screen, - struct r300_texture* tex) -{ - struct pipe_resource* base = &tex->b.b; - unsigned stride, size, layer_size, nblocksy, i; - boolean rv350_mode = screen->caps.is_rv350; - - SCREEN_DBG(screen, DBG_TEXALLOC, - "r300: Making miptree for texture, format %s\n", - util_format_short_name(base->format)); - - for (i = 0; i <= base->last_level; i++) { - /* Let's see if this miplevel can be macrotiled. */ - tex->mip_macrotile[i] = - (tex->macrotile == R300_BUFFER_TILED && - r300_texture_macro_switch(tex, i, rv350_mode, DIM_WIDTH) && - r300_texture_macro_switch(tex, i, rv350_mode, DIM_HEIGHT)) ? - R300_BUFFER_TILED : R300_BUFFER_LINEAR; - - stride = r300_texture_get_stride(screen, tex, i); - nblocksy = r300_texture_get_nblocksy(tex, i); - layer_size = stride * nblocksy; - - if (base->nr_samples) { - layer_size *= base->nr_samples; - } - - if (base->target == PIPE_TEXTURE_CUBE) - size = layer_size * 6; - else - size = layer_size * u_minify(base->depth0, i); - - tex->offset[i] = tex->size; - tex->size = tex->offset[i] + size; - tex->layer_size[i] = layer_size; - tex->pitch[i] = stride / util_format_get_blocksize(base->format); - tex->hwpitch[i] = - tex->pitch[i] * util_format_get_blockwidth(base->format); - - SCREEN_DBG(screen, DBG_TEXALLOC, "r300: Texture miptree: Level %d " - "(%dx%dx%d px, pitch %d bytes) %d bytes total, macrotiled %s\n", - i, u_minify(base->width0, i), u_minify(base->height0, i), - u_minify(base->depth0, i), stride, tex->size, - tex->mip_macrotile[i] ? "TRUE" : "FALSE"); - } -} - -static void r300_setup_flags(struct r300_texture* tex) -{ - tex->uses_pitch = !util_is_power_of_two(tex->b.b.width0) || - !util_is_power_of_two(tex->b.b.height0) || - tex->stride_override; -} - -static void r300_setup_tiling(struct pipe_screen *screen, - struct r300_texture *tex) -{ - struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys; - enum pipe_format format = tex->b.b.format; - boolean rv350_mode = r300_screen(screen)->caps.is_rv350; - boolean is_zb = util_format_is_depth_or_stencil(format); - boolean dbg_no_tiling = SCREEN_DBG_ON(r300_screen(screen), DBG_NO_TILING); - - if (!util_format_is_plain(format)) { - return; - } - - /* If height == 1, disable microtiling except for zbuffer. */ - if (!is_zb && (tex->b.b.height0 == 1 || dbg_no_tiling)) { - return; - } - - /* Set microtiling. */ - switch (util_format_get_blocksize(format)) { - case 1: - case 4: - tex->microtile = R300_BUFFER_TILED; - break; - - case 2: - case 8: - if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT)) { - tex->microtile = R300_BUFFER_SQUARETILED; - } - break; - } - - if (dbg_no_tiling) { - return; - } - - /* Set macrotiling. */ - if (r300_texture_macro_switch(tex, 0, rv350_mode, DIM_WIDTH) && - r300_texture_macro_switch(tex, 0, rv350_mode, DIM_HEIGHT)) { - tex->macrotile = R300_BUFFER_TILED; - } -} - static unsigned r300_texture_is_referenced(struct pipe_context *context, struct pipe_resource *texture, unsigned face, unsigned level) @@ -941,11 +657,10 @@ static boolean r300_texture_get_handle(struct pipe_screen* screen, } return rws->buffer_get_handle(rws, tex->buffer, - r300_texture_get_stride(r300_screen(screen), tex, 0), - whandle); + tex->desc.stride_in_bytes[0], whandle); } -struct u_resource_vtbl r300_texture_vtbl = +struct u_resource_vtbl r300_texture_vtbl = { r300_texture_get_handle, /* get_handle */ r300_texture_destroy, /* resource_destroy */ @@ -958,32 +673,69 @@ struct u_resource_vtbl r300_texture_vtbl = u_default_transfer_inline_write /* transfer_inline_write */ }; -static void r300_tex_print_info(struct r300_screen *rscreen, struct r300_texture *tex, - const char *func) +/* The common texture constructor. */ +static struct r300_texture* +r300_texture_create_object(struct r300_screen *rscreen, + const struct pipe_resource *base, + enum r300_buffer_tiling microtile, + enum r300_buffer_tiling macrotile, + unsigned stride_in_bytes_override, + unsigned max_buffer_size, + struct r300_winsys_buffer *buffer) { - fprintf(stderr, - "r300: %s: Macro: %s, Micro: %s, Pitch: %i, Dim: %ix%ix%i, " - "LastLevel: %i, Size: %i, Format: %s\n", - func, - tex->macrotile ? "YES" : " NO", - tex->microtile ? "YES" : " NO", - tex->hwpitch[0], - tex->b.b.width0, tex->b.b.height0, tex->b.b.depth0, - tex->b.b.last_level, tex->size, - util_format_short_name(tex->b.b.format)); + struct r300_winsys_screen *rws = rscreen->rws; + struct r300_texture *tex = CALLOC_STRUCT(r300_texture); + if (!tex) { + if (buffer) + rws->buffer_reference(rws, &buffer, NULL); + return NULL; + } + + /* Initialize the descriptor. */ + if (!r300_texture_desc_init(rscreen, &tex->desc, base, + microtile, macrotile, + stride_in_bytes_override, + max_buffer_size)) { + if (buffer) + rws->buffer_reference(rws, &buffer, NULL); + FREE(tex); + return NULL; + } + /* Initialize the hardware state. */ + r300_texture_setup_immutable_state(rscreen, tex); + r300_texture_setup_fb_state(rscreen, tex); + + tex->desc.b.vtbl = &r300_texture_vtbl; + pipe_reference_init(&tex->desc.b.b.reference, 1); + tex->domain = base->flags & R300_RESOURCE_FLAG_TRANSFER ? + R300_DOMAIN_GTT : + R300_DOMAIN_VRAM | R300_DOMAIN_GTT; + tex->buffer = buffer; + + /* Create the backing buffer if needed. */ + if (!tex->buffer) { + tex->buffer = rws->buffer_create(rws, tex->desc.size_in_bytes, 2048, + base->bind, base->usage, tex->domain); + + if (!tex->buffer) { + FREE(tex); + return NULL; + } + } + + rws->buffer_set_tiling(rws, tex->buffer, + tex->desc.microtile, tex->desc.macrotile[0], + tex->desc.stride_in_bytes[0]); + + return tex; } /* Create a new texture. */ -struct pipe_resource* r300_texture_create(struct pipe_screen* screen, - const struct pipe_resource* base) +struct pipe_resource *r300_texture_create(struct pipe_screen *screen, + const struct pipe_resource *base) { - struct r300_texture* tex = CALLOC_STRUCT(r300_texture); - struct r300_screen* rscreen = r300_screen(screen); - struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys; - - if (!tex) { - return NULL; - } + struct r300_screen *rscreen = r300_screen(screen); + enum r300_buffer_tiling microtile, macrotile; /* Refuse to create a texture with size 0. */ if (!base->width0 || @@ -993,53 +745,70 @@ struct pipe_resource* r300_texture_create(struct pipe_screen* screen, fprintf(stderr, "r300: texture_create: " "Got invalid texture dimensions: %ix%ix%i\n", base->width0, base->height0, base->depth0); - FREE(tex); return NULL; } - tex->b.b = *base; - tex->b.vtbl = &r300_texture_vtbl; - pipe_reference_init(&tex->b.b.reference, 1); - tex->b.b.screen = screen; - - r300_setup_flags(tex); - if (!(base->flags & R300_RESOURCE_FLAG_TRANSFER) && - !(base->bind & PIPE_BIND_SCANOUT)) { - r300_setup_tiling(screen, tex); + if ((base->flags & R300_RESOURCE_FLAG_TRANSFER) || + (base->bind & PIPE_BIND_SCANOUT)) { + microtile = R300_BUFFER_LINEAR; + macrotile = R300_BUFFER_LINEAR; + } else { + microtile = R300_BUFFER_SELECT_LAYOUT; + macrotile = R300_BUFFER_SELECT_LAYOUT; } - r300_setup_miptree(rscreen, tex); - r300_texture_3d_fix_mipmapping(rscreen, tex); - r300_texture_setup_immutable_state(rscreen, tex); - r300_texture_setup_fb_state(rscreen, tex); - if (SCREEN_DBG_ON(rscreen, DBG_TEX)) { - r300_tex_print_info(rscreen, tex, "texture_create"); + return (struct pipe_resource*) + r300_texture_create_object(rscreen, base, microtile, macrotile, + 0, 0, NULL); +} + +struct pipe_resource *r300_texture_from_handle(struct pipe_screen *screen, + const struct pipe_resource *base, + struct winsys_handle *whandle) +{ + struct r300_winsys_screen *rws = (struct r300_winsys_screen*)screen->winsys; + struct r300_screen *rscreen = r300_screen(screen); + struct r300_winsys_buffer *buffer; + enum r300_buffer_tiling microtile, macrotile; + unsigned stride, size; + + /* Support only 2D textures without mipmaps */ + if (base->target != PIPE_TEXTURE_2D || + base->depth0 != 1 || + base->last_level != 0) { + return NULL; } - tex->domain = base->flags & R300_RESOURCE_FLAG_TRANSFER ? - R300_DOMAIN_GTT : - R300_DOMAIN_VRAM | R300_DOMAIN_GTT; + buffer = rws->buffer_from_handle(rws, whandle, &stride, &size); + if (!buffer) + return NULL; - tex->buffer = rws->buffer_create(rws, tex->size, 2048, base->bind, - base->usage, tex->domain); - tex->buffer_size = tex->size; + rws->buffer_get_tiling(rws, buffer, µtile, ¯otile); - if (!tex->buffer) { - FREE(tex); - return NULL; - } + /* Enforce a microtiled zbuffer. */ + if (util_format_is_depth_or_stencil(base->format) && + microtile == R300_BUFFER_LINEAR) { + switch (util_format_get_blocksize(base->format)) { + case 4: + microtile = R300_BUFFER_TILED; + break; - rws->buffer_set_tiling(rws, tex->buffer, - tex->microtile, tex->macrotile, - tex->pitch[0] * util_format_get_blocksize(tex->b.b.format)); + case 2: + if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT)) + microtile = R300_BUFFER_SQUARETILED; + break; + } + } - return (struct pipe_resource*)tex; + return (struct pipe_resource*) + r300_texture_create_object(rscreen, base, microtile, macrotile, + stride, size, buffer); } /* Not required to implement u_resource_vtbl, consider moving to another file: */ struct pipe_surface* r300_get_tex_surface(struct pipe_screen* screen, - struct pipe_resource* texture, + struct pipe_resource* texture, unsigned face, unsigned level, unsigned zslice, @@ -1049,7 +818,7 @@ struct pipe_surface* r300_get_tex_surface(struct pipe_screen* screen, struct r300_surface* surface = CALLOC_STRUCT(r300_surface); if (surface) { - uint32_t stride, offset, tile_height; + uint32_t offset, tile_height; pipe_reference_init(&surface->base.reference, 1); pipe_resource_reference(&surface->base.texture, texture); @@ -1068,23 +837,29 @@ struct pipe_surface* r300_get_tex_surface(struct pipe_screen* screen, if (surface->domain & R300_DOMAIN_VRAM) surface->domain &= ~R300_DOMAIN_GTT; - surface->offset = r300_texture_get_offset(tex, level, zslice, face); + surface->offset = r300_texture_get_offset(&tex->desc, + level, zslice, face); surface->pitch = tex->fb_state.pitch[level]; surface->format = tex->fb_state.format; /* Parameters for the CBZB clear. */ + surface->cbzb_allowed = tex->desc.cbzb_allowed[level]; surface->cbzb_width = align(surface->base.width, 64); /* Height must be aligned to the size of a tile. */ - tile_height = r300_get_pixel_alignment(tex, tex->mip_macrotile[level], + tile_height = r300_get_pixel_alignment(tex->desc.b.b.format, + tex->desc.b.b.nr_samples, + tex->desc.microtile, + tex->desc.macrotile[level], DIM_HEIGHT); + surface->cbzb_height = align((surface->base.height + 1) / 2, tile_height); /* Offset must be aligned to 2K and must point at the beginning * of a scanline. */ - stride = r300_texture_get_stride(r300_screen(screen), tex, level); - offset = surface->offset + stride * surface->cbzb_height; + offset = surface->offset + + tex->desc.stride_in_bytes[level] * surface->cbzb_height; surface->cbzb_midpoint_offset = offset & ~2047; surface->cbzb_pitch = surface->pitch & 0x1ffffc; @@ -1098,7 +873,7 @@ struct pipe_surface* r300_get_tex_surface(struct pipe_screen* screen, "CBZB Dim: %ix%i, Misalignment: %i, Macro: %s\n", surface->cbzb_width, surface->cbzb_height, offset & 2047, - tex->mip_macrotile[level] ? "YES" : " NO"); + tex->desc.macrotile[level] ? "YES" : " NO"); } return &surface->base; @@ -1111,95 +886,3 @@ void r300_tex_surface_destroy(struct pipe_surface* s) pipe_resource_reference(&s->texture, NULL); FREE(s); } - -struct pipe_resource* -r300_texture_from_handle(struct pipe_screen* screen, - const struct pipe_resource* base, - struct winsys_handle *whandle) -{ - struct r300_winsys_screen *rws = (struct r300_winsys_screen*)screen->winsys; - struct r300_screen* rscreen = r300_screen(screen); - struct r300_winsys_buffer *buffer; - struct r300_texture* tex; - unsigned stride, size; - boolean override_zb_flags; - - /* Support only 2D textures without mipmaps */ - if (base->target != PIPE_TEXTURE_2D || - base->depth0 != 1 || - base->last_level != 0) { - return NULL; - } - - buffer = rws->buffer_from_handle(rws, whandle, &stride, &size); - if (!buffer) { - return NULL; - } - - tex = CALLOC_STRUCT(r300_texture); - if (!tex) { - return NULL; - } - - tex->b.b = *base; - tex->b.vtbl = &r300_texture_vtbl; - pipe_reference_init(&tex->b.b.reference, 1); - tex->b.b.screen = screen; - tex->domain = R300_DOMAIN_VRAM; - - tex->stride_override = stride; - - /* one ref already taken */ - tex->buffer = buffer; - tex->buffer_size = size; - - rws->buffer_get_tiling(rws, buffer, &tex->microtile, &tex->macrotile); - r300_setup_flags(tex); - - /* Enforce microtiled zbuffer. */ - override_zb_flags = util_format_is_depth_or_stencil(base->format) && - tex->microtile == R300_BUFFER_LINEAR; - - if (override_zb_flags) { - switch (util_format_get_blocksize(base->format)) { - case 4: - tex->microtile = R300_BUFFER_TILED; - break; - - case 2: - if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT)) { - tex->microtile = R300_BUFFER_SQUARETILED; - break; - } - /* Pass through. */ - - default: - override_zb_flags = FALSE; - } - } - - r300_setup_miptree(rscreen, tex); - r300_texture_setup_immutable_state(rscreen, tex); - r300_texture_setup_fb_state(rscreen, tex); - - if (override_zb_flags) { - rws->buffer_set_tiling(rws, tex->buffer, - tex->microtile, tex->macrotile, - tex->pitch[0] * util_format_get_blocksize(tex->b.b.format)); - } - - /* Make sure the buffer we got is large enough. */ - if (tex->size > tex->buffer_size) { - fprintf(stderr, "r300: texture_from_handle: The buffer is not " - "large enough. Got: %i, Need: %i, Info:\n", - tex->buffer_size, tex->size); - r300_tex_print_info(rscreen, tex, "texture_from_handle"); - pipe_resource_reference((struct pipe_resource**)&tex, NULL); - return NULL; - } else { - if (SCREEN_DBG_ON(rscreen, DBG_TEX)) - r300_tex_print_info(rscreen, tex, "texture_from_handle"); - } - - return (struct pipe_resource*)tex; -} |