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-rw-r--r--src/gallium/drivers/r600/evergreen_state.c16
-rw-r--r--src/gallium/drivers/r600/r600_state.c35
2 files changed, 41 insertions, 10 deletions
diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index d60c153b482..9757811e8b6 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -710,14 +710,20 @@ static void evergreen_cb(struct r600_pipe_context *rctx, struct r600_pipe_state
S_028C70_ENDIAN(endian);
- /* we can only set the export size if any thing is snorm/unorm component is > 11 bits,
- if we aren't a float, sint or uint */
+ /* EXPORT_NORM is an optimzation that can be enabled for better
+ * performance in certain cases.
+ * EXPORT_NORM can be enabled if:
+ * - 11-bit or smaller UNORM/SNORM/SRGB
+ * - 16-bit or smaller FLOAT
+ */
/* FIXME: This should probably be the same for all CBs if we want
* useful alpha tests. */
if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS &&
- desc->channel[i].size < 12 && desc->channel[i].type != UTIL_FORMAT_TYPE_FLOAT &&
- ntype != V_028C70_NUMBER_UINT && ntype != V_028C70_NUMBER_SINT) {
- color_info |= S_028C70_SOURCE_FORMAT(V_028C70_EXPORT_4C_16BPC);
+ ((desc->channel[i].size < 12 &&
+ desc->channel[i].type != UTIL_FORMAT_TYPE_FLOAT &&
+ ntype != V_028C70_NUMBER_UINT && ntype != V_028C70_NUMBER_SINT) ||
+ (desc->channel[i].size < 17 &&
+ desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT))) {
rctx->export_16bpc = true;
} else {
rctx->export_16bpc = false;
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 90c5ba2b31e..3f979cf170f 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -770,11 +770,36 @@ static void r600_cb(struct r600_pipe_context *rctx, struct r600_pipe_state *rsta
S_0280A0_NUMBER_TYPE(ntype) |
S_0280A0_ENDIAN(endian);
- /* on R600 this can't be set if BLEND_CLAMP isn't set,
- if BLEND_FLOAT32 is set of > 11 bits in a UNORM or SNORM */
- if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS &&
- desc->channel[i].size < 12)
- color_info |= S_0280A0_SOURCE_FORMAT(V_0280A0_EXPORT_NORM);
+ /* EXPORT_NORM is an optimzation that can be enabled for better
+ * performance in certain cases
+ */
+ if (rctx->family < CHIP_RV770) {
+ /* EXPORT_NORM can be enabled if:
+ * - 11-bit or smaller UNORM/SNORM/SRGB
+ * - BLEND_CLAMP is enabled
+ * - BLEND_FLOAT32 is disabled
+ */
+ if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS &&
+ (desc->channel[i].size < 12 &&
+ desc->channel[i].type != UTIL_FORMAT_TYPE_FLOAT &&
+ ntype != V_0280A0_NUMBER_UINT &&
+ ntype != V_0280A0_NUMBER_SINT) &&
+ G_0280A0_BLEND_CLAMP(color_info) &&
+ !G_0280A0_BLEND_FLOAT32(color_info))
+ color_info |= S_0280A0_SOURCE_FORMAT(V_0280A0_EXPORT_NORM);
+ } else {
+ /* EXPORT_NORM can be enabled if:
+ * - 11-bit or smaller UNORM/SNORM/SRGB
+ * - 16-bit or smaller FLOAT
+ */
+ if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS &&
+ ((desc->channel[i].size < 12 &&
+ desc->channel[i].type != UTIL_FORMAT_TYPE_FLOAT &&
+ ntype != V_0280A0_NUMBER_UINT && ntype != V_0280A0_NUMBER_SINT) ||
+ (desc->channel[i].size < 17 &&
+ desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT)))
+ color_info |= S_0280A0_SOURCE_FORMAT(V_0280A0_EXPORT_NORM);
+ }
r600_pipe_state_add_reg(rstate,
R_028040_CB_COLOR0_BASE + cb * 4,