[Mesa-dev] [PATCH 5/5] r600g: add get_sample_position support (v3)
Dave Airlie
airlied at gmail.com
Wed Apr 10 21:17:52 PDT 2013
From: Dave Airlie <airlied at redhat.com>
v2: I rewrote this to use the sample positions properly.
v3: rewrite properly to use bitfield to cast back to signed ints
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
src/gallium/drivers/r600/evergreen_state.c | 287 ++++++++++++++++++-----------
src/gallium/drivers/r600/r600_state.c | 75 ++++++--
2 files changed, 240 insertions(+), 122 deletions(-)
diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index 86f1411..d2a2008 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -1870,38 +1870,78 @@ static void evergreen_set_framebuffer_state(struct pipe_context *ctx,
(((s2x) & 0xf) << 16) | (((s2y) & 0xf) << 20) | \
(((s3x) & 0xf) << 24) | (((s3y) & 0xf) << 28))
+/* 2xMSAA
+ * There are two locations (-4, 4), (4, -4). */
+static uint32_t sample_locs_2x[] = {
+ FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
+ FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
+ FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
+ FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
+};
+static unsigned max_dist_2x = 4;
+/* 4xMSAA
+ * There are 4 locations: (-2, -2), (2, 2), (-6, 6), (6, -6). */
+static uint32_t sample_locs_4x[] = {
+ FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
+ FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
+ FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
+ FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
+};
+static unsigned max_dist_4x = 6;
+/* 8xMSAA */
+static uint32_t sample_locs_8x[] = {
+ FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
+ FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
+ FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
+ FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
+ FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
+ FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
+ FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
+ FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
+};
+static unsigned max_dist_8x = 7;
+
+static void evergreen_get_sample_position(struct pipe_context *ctx,
+ unsigned sample_count,
+ unsigned sample_index,
+ float *out_value)
+{
+ int offset, index;
+ struct {
+ int idx:4;
+ } val;
+ switch (sample_count) {
+ case 1:
+ default:
+ out_value[0] = out_value[1] = 0.5;
+ break;
+ case 2:
+ offset = 4 * (sample_index * 2);
+ val.idx = (sample_locs_2x[0] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (sample_locs_2x[0] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ case 4:
+ offset = 4 * (sample_index * 2);
+ val.idx = (sample_locs_4x[0] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (sample_locs_4x[0] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ case 8:
+ offset = 4 * (sample_index % 4 * 2);
+ index = (sample_index / 4);
+ val.idx = (sample_locs_8x[index] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (sample_locs_8x[index] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ }
+}
+
static void evergreen_emit_msaa_state(struct r600_context *rctx, int nr_samples)
{
- /* 2xMSAA
- * There are two locations (-4, 4), (4, -4). */
- static uint32_t sample_locs_2x[] = {
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- };
- static unsigned max_dist_2x = 4;
- /* 4xMSAA
- * There are 4 locations: (-2, -2), (2, 2), (-6, 6), (6, -6). */
- static uint32_t sample_locs_4x[] = {
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- };
- static unsigned max_dist_4x = 6;
- /* 8xMSAA */
- static uint32_t sample_locs_8x[] = {
- FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
- FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
- FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
- FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
- FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
- FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
- FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
- FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
- };
- static unsigned max_dist_8x = 7;
struct radeon_winsys_cs *cs = rctx->rings.gfx.cs;
unsigned max_dist = 0;
@@ -1940,58 +1980,88 @@ static void evergreen_emit_msaa_state(struct r600_context *rctx, int nr_samples)
}
}
+/* Cayman 8xMSAA */
+static uint32_t cm_sample_locs_8x[] = {
+ FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
+ FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
+ FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
+ FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
+ FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
+ FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
+ FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
+ FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
+};
+static unsigned cm_max_dist_8x = 8;
+/* Cayman 16xMSAA */
+static uint32_t cm_sample_locs_16x[] = {
+ FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5),
+ FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5),
+ FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5),
+ FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5),
+ FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1),
+ FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1),
+ FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1),
+ FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1),
+ FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6),
+ FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6),
+ FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6),
+ FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6),
+ FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0),
+ FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0),
+ FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0),
+ FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0),
+};
+static unsigned cm_max_dist_16x = 8;
+static void cayman_get_sample_position(struct pipe_context *ctx,
+ unsigned sample_count,
+ unsigned sample_index,
+ float *out_value)
+{
+ int offset, index;
+ struct {
+ int idx:4;
+ } val;
+ switch (sample_count) {
+ case 1:
+ default:
+ out_value[0] = out_value[1] = 0.5;
+ break;
+ case 2:
+ offset = 4 * (sample_index * 2);
+ val.idx = (sample_locs_2x[0] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (sample_locs_2x[0] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ case 4:
+ offset = 4 * (sample_index * 2);
+ val.idx = (sample_locs_4x[0] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (sample_locs_4x[0] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ case 8:
+ offset = 4 * (sample_index % 4 * 2);
+ index = (sample_index / 4) * 4;
+ val.idx = (cm_sample_locs_8x[index] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (cm_sample_locs_8x[index] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ case 16:
+ offset = 4 * (sample_index % 4 * 2);
+ index = (sample_index / 4) * 4;
+ val.idx = (cm_sample_locs_16x[index] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (cm_sample_locs_16x[index] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ }
+}
+
static void cayman_emit_msaa_state(struct r600_context *rctx, int nr_samples)
{
- /* 2xMSAA
- * There are two locations (-4, 4), (4, -4). */
- static uint32_t sample_locs_2x[] = {
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- };
- static unsigned max_dist_2x = 4;
- /* 4xMSAA
- * There are 4 locations: (-2, -2), (2, 2), (-6, 6), (6, -6). */
- static uint32_t sample_locs_4x[] = {
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- };
- static unsigned max_dist_4x = 6;
- /* 8xMSAA */
- static uint32_t sample_locs_8x[] = {
- FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
- FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
- FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
- FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
- FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
- FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
- FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
- FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
- };
- static unsigned max_dist_8x = 8;
- /* 16xMSAA */
- static uint32_t sample_locs_16x[] = {
- FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5),
- FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5),
- FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5),
- FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5),
- FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1),
- FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1),
- FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1),
- FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1),
- FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6),
- FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6),
- FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6),
- FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6),
- FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0),
- FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0),
- FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0),
- FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0),
- };
- static unsigned max_dist_16x = 8;
+
struct radeon_winsys_cs *cs = rctx->rings.gfx.cs;
unsigned max_dist = 0;
@@ -2016,41 +2086,41 @@ static void cayman_emit_msaa_state(struct r600_context *rctx, int nr_samples)
break;
case 8:
r600_write_context_reg_seq(cs, CM_R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, 14);
- r600_write_value(cs, sample_locs_8x[0]);
- r600_write_value(cs, sample_locs_8x[4]);
+ r600_write_value(cs, cm_sample_locs_8x[0]);
+ r600_write_value(cs, cm_sample_locs_8x[4]);
r600_write_value(cs, 0);
r600_write_value(cs, 0);
- r600_write_value(cs, sample_locs_8x[1]);
- r600_write_value(cs, sample_locs_8x[5]);
+ r600_write_value(cs, cm_sample_locs_8x[1]);
+ r600_write_value(cs, cm_sample_locs_8x[5]);
r600_write_value(cs, 0);
r600_write_value(cs, 0);
- r600_write_value(cs, sample_locs_8x[2]);
- r600_write_value(cs, sample_locs_8x[6]);
+ r600_write_value(cs, cm_sample_locs_8x[2]);
+ r600_write_value(cs, cm_sample_locs_8x[6]);
r600_write_value(cs, 0);
r600_write_value(cs, 0);
- r600_write_value(cs, sample_locs_8x[3]);
- r600_write_value(cs, sample_locs_8x[7]);
- max_dist = max_dist_8x;
+ r600_write_value(cs, cm_sample_locs_8x[3]);
+ r600_write_value(cs, cm_sample_locs_8x[7]);
+ max_dist = cm_max_dist_8x;
break;
case 16:
r600_write_context_reg_seq(cs, CM_R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, 16);
- r600_write_value(cs, sample_locs_16x[0]);
- r600_write_value(cs, sample_locs_16x[4]);
- r600_write_value(cs, sample_locs_16x[8]);
- r600_write_value(cs, sample_locs_16x[12]);
- r600_write_value(cs, sample_locs_16x[1]);
- r600_write_value(cs, sample_locs_16x[5]);
- r600_write_value(cs, sample_locs_16x[9]);
- r600_write_value(cs, sample_locs_16x[13]);
- r600_write_value(cs, sample_locs_16x[2]);
- r600_write_value(cs, sample_locs_16x[6]);
- r600_write_value(cs, sample_locs_16x[10]);
- r600_write_value(cs, sample_locs_16x[14]);
- r600_write_value(cs, sample_locs_16x[3]);
- r600_write_value(cs, sample_locs_16x[7]);
- r600_write_value(cs, sample_locs_16x[11]);
- r600_write_value(cs, sample_locs_16x[15]);
- max_dist = max_dist_16x;
+ r600_write_value(cs, cm_sample_locs_16x[0]);
+ r600_write_value(cs, cm_sample_locs_16x[4]);
+ r600_write_value(cs, cm_sample_locs_16x[8]);
+ r600_write_value(cs, cm_sample_locs_16x[12]);
+ r600_write_value(cs, cm_sample_locs_16x[1]);
+ r600_write_value(cs, cm_sample_locs_16x[5]);
+ r600_write_value(cs, cm_sample_locs_16x[9]);
+ r600_write_value(cs, cm_sample_locs_16x[13]);
+ r600_write_value(cs, cm_sample_locs_16x[2]);
+ r600_write_value(cs, cm_sample_locs_16x[6]);
+ r600_write_value(cs, cm_sample_locs_16x[10]);
+ r600_write_value(cs, cm_sample_locs_16x[14]);
+ r600_write_value(cs, cm_sample_locs_16x[3]);
+ r600_write_value(cs, cm_sample_locs_16x[7]);
+ r600_write_value(cs, cm_sample_locs_16x[11]);
+ r600_write_value(cs, cm_sample_locs_16x[15]);
+ max_dist = cm_max_dist_16x;
break;
}
@@ -3781,5 +3851,10 @@ void evergreen_init_state_functions(struct r600_context *rctx)
rctx->context.set_framebuffer_state = evergreen_set_framebuffer_state;
rctx->context.set_polygon_stipple = evergreen_set_polygon_stipple;
rctx->context.set_scissor_state = evergreen_set_scissor_state;
+
+ if (rctx->chip_class == EVERGREEN)
+ rctx->context.get_sample_position = evergreen_get_sample_position;
+ else
+ rctx->context.get_sample_position = cayman_get_sample_position;
evergreen_init_compute_state_functions(rctx);
}
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index a7e6923..b30e053 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -1686,24 +1686,65 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx,
(((s2x) & 0xf) << 16) | (((s2y) & 0xf) << 20) | \
(((s3x) & 0xf) << 24) | (((s3y) & 0xf) << 28))
+
+static uint32_t sample_locs_2x[] = {
+ FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
+ FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
+};
+static unsigned max_dist_2x = 4;
+
+static uint32_t sample_locs_4x[] = {
+ FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
+ FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
+};
+static unsigned max_dist_4x = 6;
+static uint32_t sample_locs_8x[] = {
+ FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
+ FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
+};
+static unsigned max_dist_8x = 7;
+
+static void r600_get_sample_position(struct pipe_context *ctx,
+ unsigned sample_count,
+ unsigned sample_index,
+ float *out_value)
+{
+ int offset, index;
+ struct {
+ int idx:4;
+ } val;
+ switch (sample_count) {
+ case 1:
+ default:
+ out_value[0] = out_value[1] = 0.5;
+ break;
+ case 2:
+ offset = 4 * (sample_index * 2);
+ val.idx = (sample_locs_2x[0] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (sample_locs_2x[0] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ case 4:
+ offset = 4 * (sample_index * 2);
+ val.idx = (sample_locs_4x[0] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (sample_locs_4x[0] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ case 8:
+ offset = 4 * (sample_index % 4 * 2);
+ index = (sample_index / 4);
+ val.idx = (sample_locs_8x[index] >> offset) & 0xf;
+ out_value[0] = (float)(val.idx + 8) / 16.0f;
+ val.idx = (sample_locs_8x[index] >> (offset + 4)) & 0xf;
+ out_value[1] = (float)(val.idx + 8) / 16.0f;
+ break;
+ }
+}
+
static void r600_emit_msaa_state(struct r600_context *rctx, int nr_samples)
{
- static uint32_t sample_locs_2x[] = {
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
- };
- static unsigned max_dist_2x = 4;
- static uint32_t sample_locs_4x[] = {
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
- };
- static unsigned max_dist_4x = 6;
- static uint32_t sample_locs_8x[] = {
- FILL_SREG(-1, 1, 1, 5, 3, -5, 5, 3),
- FILL_SREG(-7, -1, -3, -7, 7, -3, -5, 7),
- };
- static unsigned max_dist_8x = 7;
-
struct radeon_winsys_cs *cs = rctx->rings.gfx.cs;
unsigned max_dist = 0;
@@ -3211,5 +3252,7 @@ void r600_init_state_functions(struct r600_context *rctx)
rctx->context.set_framebuffer_state = r600_set_framebuffer_state;
rctx->context.set_polygon_stipple = r600_set_polygon_stipple;
rctx->context.set_scissor_state = r600_set_scissor_state;
+
+ rctx->context.get_sample_position = r600_get_sample_position;
}
/* this function must be last */
--
1.8.2
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