diff options
author | Marek Olšák <maraeo@gmail.com> | 2009-10-25 05:05:27 +0100 |
---|---|---|
committer | Joakim Sindholt <opensource@zhasha.com> | 2009-10-25 08:06:19 +0100 |
commit | 118dfe16887d1ec4d3b96d49b76fffa0d2924132 (patch) | |
tree | 51b60cf0c95c8b6a67e2b538791daf35e9a68091 /src | |
parent | 94a63dccdd79268cf37587c93e3dec0d02dad457 (diff) |
r300g: added support for 3D textures
Mipmaps not tested. Also, I am not sure why piglit/texturing/tex3d needs
to have color tolerance +-1 to pass. The classic Mesa driver doesn't
need that.
Diffstat (limited to 'src')
-rw-r--r-- | src/gallium/drivers/r300/r300_context.h | 3 | ||||
-rw-r--r-- | src/gallium/drivers/r300/r300_screen.c | 59 | ||||
-rw-r--r-- | src/gallium/drivers/r300/r300_texture.c | 39 | ||||
-rw-r--r-- | src/gallium/drivers/r300/r300_texture.h | 3 |
4 files changed, 51 insertions, 53 deletions
diff --git a/src/gallium/drivers/r300/r300_context.h b/src/gallium/drivers/r300/r300_context.h index 30b80fa9db..4d73567bbe 100644 --- a/src/gallium/drivers/r300/r300_context.h +++ b/src/gallium/drivers/r300/r300_context.h @@ -181,6 +181,9 @@ struct r300_texture { /* Offsets into the buffer. */ unsigned offset[PIPE_MAX_TEXTURE_LEVELS]; + /* Size of one zslice or face based on the texture target */ + unsigned layer_size[PIPE_MAX_TEXTURE_LEVELS]; + /** * If non-zero, override the natural texture layout with * a custom stride (in bytes). diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c index 1d9f91d0f7..f581f0ca09 100644 --- a/src/gallium/drivers/r300/r300_screen.c +++ b/src/gallium/drivers/r300/r300_screen.c @@ -119,32 +119,13 @@ static int r300_get_param(struct pipe_screen* pscreen, int param) case PIPE_CAP_TEXTURE_SHADOW_MAP: return 1; case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: - if (r300screen->caps->is_r500) { - /* 13 == 4096x4096 */ - return 13; - } else { - /* 12 == 2048x2048 */ - return 12; - } case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: - /* So, technically, the limit is the same as above, but some math - * shows why this is silly. Assuming RGBA, 4cpp, we can see that - * 4096*4096*4096 = 64.0 GiB exactly, so it's not exactly - * practical. However, if at some point a game really wants this, - * then we can remove or raise this limit. */ - if (r300screen->caps->is_r500) { - /* 9 == 256x256x256 */ - return 9; - } else { - /* 8 == 128*128*128 */ - return 8; - } case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: if (r300screen->caps->is_r500) { - /* 13 == 4096x4096 */ + /* 13 == 4096 */ return 13; } else { - /* 12 == 2048x2048 */ + /* 12 == 2048 */ return 12; } case PIPE_CAP_TEXTURE_MIRROR_CLAMP: @@ -191,8 +172,8 @@ static float r300_get_paramf(struct pipe_screen* pscreen, int param) } } -static boolean check_tex_2d_format(enum pipe_format format, uint32_t usage, - boolean is_r500) +static boolean check_tex_format(enum pipe_format format, uint32_t usage, + boolean is_r500) { uint32_t retval = 0; @@ -286,7 +267,6 @@ static boolean check_tex_2d_format(enum pipe_format format, uint32_t usage, return (retval >= usage); } -/* XXX moar targets */ static boolean r300_is_format_supported(struct pipe_screen* pscreen, enum pipe_format format, enum pipe_texture_target target, @@ -294,15 +274,17 @@ static boolean r300_is_format_supported(struct pipe_screen* pscreen, unsigned geom_flags) { switch (target) { + case PIPE_TEXTURE_1D: /* handle 1D textures as 2D ones */ case PIPE_TEXTURE_2D: - return check_tex_2d_format(format, tex_usage, - r300_screen(pscreen)->caps->is_r500); - case PIPE_TEXTURE_1D: case PIPE_TEXTURE_3D: + return check_tex_format(format, tex_usage, + r300_screen(pscreen)->caps->is_r500); + case PIPE_TEXTURE_CUBE: debug_printf("r300: Implementation error: Unsupported format " "target: %d\n", target); break; + default: debug_printf("r300: Fatal: This is not a format target: %d\n", target); @@ -322,22 +304,9 @@ r300_get_tex_transfer(struct pipe_screen *screen, { struct r300_texture *tex = (struct r300_texture *)texture; struct r300_transfer *trans; - unsigned offset = 0; /* in bytes */ + unsigned offset; - /* XXX Add support for these things */ - if (texture->target == PIPE_TEXTURE_CUBE) { - debug_printf("PIPE_TEXTURE_CUBE is not yet supported.\n"); - /* offset = tex->image_offset[level][face]; */ - } - else if (texture->target == PIPE_TEXTURE_3D) { - debug_printf("PIPE_TEXTURE_3D is not yet supported.\n"); - /* offset = tex->image_offset[level][zslice]; */ - } - else { - offset = tex->offset[level]; - assert(face == 0); - assert(zslice == 0); - } + offset = r300_texture_get_offset(tex, level, zslice, face); /* in bytes */ trans = CALLOC_STRUCT(r300_transfer); if (trans) { @@ -352,6 +321,12 @@ r300_get_tex_transfer(struct pipe_screen *screen, trans->transfer.nblocksy = texture->nblocksy[level]; trans->transfer.stride = r300_texture_get_stride(tex, level); trans->transfer.usage = usage; + + /* XXX not sure whether it's required to set these two, + the driver doesn't use them */ + trans->transfer.zslice = zslice; + trans->transfer.face = face; + trans->offset = offset; } return &trans->transfer; diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 3c8ff24e17..37c7910d80 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -36,7 +36,7 @@ static void r300_setup_texture_state(struct r300_texture* tex) state->format0 = R300_TX_WIDTH((pt->width[0] - 1) & 0x7ff) | R300_TX_HEIGHT((pt->height[0] - 1) & 0x7ff) | R300_TX_DEPTH(util_logbase2(pt->depth[0]) & 0xf) | - R300_TX_NUM_LEVELS(pt->last_level) | + R300_TX_NUM_LEVELS(pt->last_level & 0xf) | R300_TX_PITCH_EN; /* XXX */ @@ -48,7 +48,8 @@ static void r300_setup_texture_state(struct r300_texture* tex) state->format1 |= R300_TX_FORMAT_3D; } - state->format2 = (r300_texture_get_stride(tex, 0) / pt->block.size) - 1; + state->format2 = ((r300_texture_get_stride(tex, 0) / pt->block.size) - 1) + & 0x1fff; /* Don't worry about accidentally setting this bit on non-r500; * the kernel should catch it. */ @@ -63,6 +64,26 @@ static void r300_setup_texture_state(struct r300_texture* tex) pt->width[0], pt->height[0], pt->last_level); } +unsigned r300_texture_get_offset(struct r300_texture* tex, unsigned level, + unsigned zslice, unsigned face) +{ + unsigned offset = tex->offset[level]; + + switch (tex->tex.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; + } +} + /** * Return the stride, in bytes, of the texture images of the given texture * at the given level. @@ -84,7 +105,7 @@ unsigned r300_texture_get_stride(struct r300_texture* tex, unsigned level) static void r300_setup_miptree(struct r300_texture* tex) { struct pipe_texture* base = &tex->tex; - int stride, size; + int stride, size, layer_size; int i; for (i = 0; i <= base->last_level; i++) { @@ -98,10 +119,12 @@ static void r300_setup_miptree(struct r300_texture* tex) base->nblocksy[i] = pf_get_nblocksy(&base->block, base->height[i]); stride = r300_texture_get_stride(tex, i); - size = stride * base->nblocksy[i] * base->depth[i]; + layer_size = stride * base->nblocksy[i]; + size = layer_size * base->depth[i]; tex->offset[i] = align(tex->size, 32); tex->size = tex->offset[i] + size; + tex->layer_size[i] = layer_size; debug_printf("r300: Texture miptree: Level %d " "(%dx%dx%d px, pitch %d bytes)\n", @@ -161,8 +184,7 @@ static struct pipe_surface* r300_get_tex_surface(struct pipe_screen* screen, struct pipe_surface* surface = CALLOC_STRUCT(pipe_surface); unsigned offset; - /* XXX this is certainly dependent on tex target */ - offset = tex->offset[level]; + offset = r300_texture_get_offset(tex, level, zslice, face); if (surface) { pipe_reference_init(&surface->reference, 1); @@ -191,11 +213,6 @@ static struct pipe_texture* { struct r300_texture* tex; - if (base->target != PIPE_TEXTURE_2D || - base->depth[0] != 1) { - return NULL; - } - tex = CALLOC_STRUCT(r300_texture); if (!tex) { return NULL; diff --git a/src/gallium/drivers/r300/r300_texture.h b/src/gallium/drivers/r300/r300_texture.h index 55d1a0ac5c..35e06a9acb 100644 --- a/src/gallium/drivers/r300/r300_texture.h +++ b/src/gallium/drivers/r300/r300_texture.h @@ -33,6 +33,9 @@ void r300_init_screen_texture_functions(struct pipe_screen* screen); unsigned r300_texture_get_stride(struct r300_texture* tex, unsigned level); +unsigned r300_texture_get_offset(struct r300_texture* tex, unsigned level, + unsigned zslice, unsigned face); + /* Note the signature of R300_EASY_TX_FORMAT(A, R, G, B, FORMAT)... */ static INLINE uint32_t r300_translate_texformat(enum pipe_format format) { |