diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/nv30/nv30_state_fb.c | 55 |
1 files changed, 35 insertions, 20 deletions
diff --git a/src/gallium/drivers/nv30/nv30_state_fb.c b/src/gallium/drivers/nv30/nv30_state_fb.c index 197de82886..f90681b0f9 100644 --- a/src/gallium/drivers/nv30/nv30_state_fb.c +++ b/src/gallium/drivers/nv30/nv30_state_fb.c @@ -8,8 +8,8 @@ nv30_state_framebuffer_validate(struct nv30_context *nv30) struct nouveau_channel *chan = nv30->screen->base.channel; struct nouveau_grobj *rankine = nv30->screen->rankine; struct nv04_surface *rt[2], *zeta = NULL; - uint32_t rt_enable, rt_format; - int i, colour_format = 0, zeta_format = 0; + uint32_t rt_enable = 0, rt_format = 0; + int i, colour_format = 0, zeta_format = 0, depth_only = 0; struct nouveau_stateobj *so = so_new(64, 10); unsigned rt_flags = NOUVEAU_BO_RDWR | NOUVEAU_BO_VRAM; unsigned w = fb->width; @@ -17,11 +17,6 @@ nv30_state_framebuffer_validate(struct nv30_context *nv30) struct nv30_miptree *nv30mt; int colour_bits = 32, zeta_bits = 32; - if (fb->nr_cbufs == 0) { - return FALSE; - } - - rt_enable = 0; for (i = 0; i < fb->nr_cbufs; i++) { if (colour_format) { assert(colour_format == fb->cbufs[i]->format); @@ -40,17 +35,35 @@ nv30_state_framebuffer_validate(struct nv30_context *nv30) zeta = (struct nv04_surface *)fb->zsbuf; } - if (!(rt[0]->base.texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) { - assert(!(fb->width & (fb->width - 1)) && !(fb->height & (fb->height - 1))); - for (i = 1; i < fb->nr_cbufs; i++) - assert(!(rt[i]->base.texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)); + if (rt_enable & (NV34TCL_RT_ENABLE_COLOR0|NV34TCL_RT_ENABLE_COLOR1)) { + /* Render to at least a colour buffer */ + if (!(rt[0]->base.texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) { + assert(!(fb->width & (fb->width - 1)) && !(fb->height & (fb->height - 1))); + for (i = 1; i < fb->nr_cbufs; i++) + assert(!(rt[i]->base.texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)); - rt_format = NV34TCL_RT_FORMAT_TYPE_SWIZZLED | - (log2i(rt[0]->base.width) << NV34TCL_RT_FORMAT_LOG2_WIDTH_SHIFT) | - (log2i(rt[0]->base.height) << NV34TCL_RT_FORMAT_LOG2_HEIGHT_SHIFT); + rt_format = NV34TCL_RT_FORMAT_TYPE_SWIZZLED | + (log2i(rt[0]->base.width) << NV34TCL_RT_FORMAT_LOG2_WIDTH_SHIFT) | + (log2i(rt[0]->base.height) << NV34TCL_RT_FORMAT_LOG2_HEIGHT_SHIFT); + } + else + rt_format = NV34TCL_RT_FORMAT_TYPE_LINEAR; + } else if (fb->zsbuf) { + depth_only = 1; + + /* Render to depth buffer only */ + if (!(zeta->base.texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) { + assert(!(fb->width & (fb->width - 1)) && !(fb->height & (fb->height - 1))); + + rt_format = NV34TCL_RT_FORMAT_TYPE_SWIZZLED | + (log2i(zeta->base.width) << NV34TCL_RT_FORMAT_LOG2_WIDTH_SHIFT) | + (log2i(zeta->base.height) << NV34TCL_RT_FORMAT_LOG2_HEIGHT_SHIFT); + } + else + rt_format = NV34TCL_RT_FORMAT_TYPE_LINEAR; + } else { + return FALSE; } - else - rt_format = NV34TCL_RT_FORMAT_TYPE_LINEAR; switch (colour_format) { case PIPE_FORMAT_A8R8G8B8_UNORM: @@ -83,21 +96,23 @@ nv30_state_framebuffer_validate(struct nv30_context *nv30) return FALSE; } - if (rt_enable & NV34TCL_RT_ENABLE_COLOR0) { - uint32_t pitch = rt[0]->pitch; + if (depth_only || (rt_enable & NV34TCL_RT_ENABLE_COLOR0)) { + struct nv04_surface *rt0 = (depth_only ? zeta : rt[0]); + uint32_t pitch = rt0->pitch; + if (zeta) { pitch |= (zeta->pitch << 16); } else { pitch |= (pitch << 16); } - nv30mt = (struct nv30_miptree *)rt[0]->base.texture; + nv30mt = (struct nv30_miptree *) rt0->base.texture; so_method(so, rankine, NV34TCL_DMA_COLOR0, 1); so_reloc (so, nouveau_bo(nv30mt->buffer), 0, rt_flags | NOUVEAU_BO_OR, chan->vram->handle, chan->gart->handle); so_method(so, rankine, NV34TCL_COLOR0_PITCH, 2); so_data (so, pitch); - so_reloc (so, nouveau_bo(nv30mt->buffer), rt[0]->base.offset, + so_reloc (so, nouveau_bo(nv30mt->buffer), rt0->base.offset, rt_flags | NOUVEAU_BO_LOW, 0, 0); } |