diff options
Diffstat (limited to 'src/gallium/drivers/nv40/nv40_state_fb.c')
| -rw-r--r-- | src/gallium/drivers/nv40/nv40_state_fb.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/src/gallium/drivers/nv40/nv40_state_fb.c b/src/gallium/drivers/nv40/nv40_state_fb.c index 0e4e60eaa7..f903b22ba0 100644 --- a/src/gallium/drivers/nv40/nv40_state_fb.c +++ b/src/gallium/drivers/nv40/nv40_state_fb.c @@ -1,5 +1,31 @@ #include "nv40_context.h" +static INLINE int log2i(int i) +{ + int r = 0; + + if (i & 0xffff0000) { + i >>= 16; + r += 16; + } + if (i & 0x0000ff00) { + i >>= 8; + r += 8; + } + if (i & 0x000000f0) { + i >>= 4; + r += 4; + } + if (i & 0x0000000c) { + i >>= 2; + r += 2; + } + if (i & 0x00000002) { + r += 1; + } + return r; +} + static boolean nv40_state_framebuffer_validate(struct nv40_context *nv40) { @@ -32,7 +58,17 @@ nv40_state_framebuffer_validate(struct nv40_context *nv40) zeta = fb->zsbuf; } - rt_format = NV40TCL_RT_FORMAT_TYPE_LINEAR; + if (!(rt[0]->texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) { + assert(!(fb->width & (fb->width - 1)) && !(fb->height & (fb->height - 1))); + for (i = 1; i < fb->num_cbufs; i++) + assert(!(rt[i]->texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)); + + rt_format = NV40TCL_RT_FORMAT_TYPE_SWIZZLED | + log2i(fb->width) << NV40TCL_RT_FORMAT_LOG2_WIDTH_SHIFT | + log2i(fb->height) << NV40TCL_RT_FORMAT_LOG2_HEIGHT_SHIFT; + } + else + rt_format = NV40TCL_RT_FORMAT_TYPE_LINEAR; switch (colour_format) { case PIPE_FORMAT_A8R8G8B8_UNORM: |