diff options
Diffstat (limited to 'src/gallium/drivers/r300')
| -rw-r--r-- | src/gallium/drivers/r300/r300_screen.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c index a64f5f5dbfb..f8a7ef1b17c 100644 --- a/src/gallium/drivers/r300/r300_screen.c +++ b/src/gallium/drivers/r300/r300_screen.c @@ -424,6 +424,44 @@ util_format_is_rgba1010102_variant(const struct util_format_description *desc) return TRUE; } +static bool r300_is_blending_supported(struct r300_screen *rscreen, + enum pipe_format format) +{ + int c; + const struct util_format_description *desc = + util_format_description(format); + + if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) + return false; + + c = util_format_get_first_non_void_channel(format); + + /* RGBA16F */ + if (rscreen->caps.is_r500 && + desc->nr_channels == 4 && + desc->channel[c].size == 16 && + desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT) + return true; + + if (desc->channel[c].normalized && + desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED && + desc->channel[c].size >= 4 && + desc->channel[c].size <= 10) { + /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */ + if (desc->nr_channels >= 3) + return true; + + if (format == PIPE_FORMAT_R8G8_UNORM) + return true; + + /* R8, I8, L8, A8 */ + if (desc->nr_channels == 1) + return true; + } + + return false; +} + static boolean r300_is_format_supported(struct pipe_screen* screen, enum pipe_format format, enum pipe_texture_target target, @@ -525,7 +563,8 @@ static boolean r300_is_format_supported(struct pipe_screen* screen, if ((usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | - PIPE_BIND_SHARED)) && + PIPE_BIND_SHARED | + PIPE_BIND_BLENDABLE)) && /* 2101010 cannot be rendered to on non-r5xx. */ (!is_color2101010 || (is_r500 && drm_2_8_0)) && r300_is_colorbuffer_format_supported(format)) { @@ -534,6 +573,10 @@ static boolean r300_is_format_supported(struct pipe_screen* screen, PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED); + + if (r300_is_blending_supported(r300_screen(screen), format)) { + retval |= usage & PIPE_BIND_BLENDABLE; + } } /* Check depth-stencil format support. */ |