diff options
author | Jerome Glisse <jglisse@redhat.com> | 2010-08-03 17:45:51 -0400 |
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committer | Jerome Glisse <jglisse@redhat.com> | 2010-08-03 17:45:51 -0400 |
commit | dd863bf5e7c6680075cf7c355a026b1da69ee9e3 (patch) | |
tree | b0d3ffb33de3240467f67b828582a1805abdc9aa /src/gallium/drivers/r600/r600_state.c | |
parent | a0b3944c30fdecf5ef97fd602b8a286bcc80fed3 (diff) |
r600g: add polygon offset support
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Diffstat (limited to 'src/gallium/drivers/r600/r600_state.c')
-rw-r--r-- | src/gallium/drivers/r600/r600_state.c | 44 |
1 files changed, 38 insertions, 6 deletions
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c index f0abafd6c2..72c0ac5dd1 100644 --- a/src/gallium/drivers/r600/r600_state.c +++ b/src/gallium/drivers/r600/r600_state.c @@ -765,8 +765,37 @@ static struct radeon_state *r600_db(struct r600_context *rctx) static struct radeon_state *r600_rasterizer(struct r600_context *rctx) { const struct pipe_rasterizer_state *state = &rctx->rasterizer->state.rasterizer; + const struct pipe_framebuffer_state *fb = &rctx->framebuffer->state.framebuffer; struct r600_screen *rscreen = rctx->screen; struct radeon_state *rstate; + float offset_units = 0, offset_scale = 0; + char depth = 0; + unsigned offset_db_fmt_cntl = 0; + + if (fb->zsbuf) { + offset_units = state->offset_units; + offset_scale = state->offset_scale * 12.0f; + switch (fb->zsbuf->texture->format) { + case PIPE_FORMAT_Z24X8_UNORM: + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + depth = -24; + offset_units *= 2.0f; + break; + case PIPE_FORMAT_Z32_FLOAT: + depth = -23; + offset_units *= 1.0f; + offset_db_fmt_cntl |= S_028DF8_POLY_OFFSET_DB_IS_FLOAT_FMT(1); + break; + case PIPE_FORMAT_Z16_UNORM: + depth = -16; + offset_units *= 4.0f; + break; + default: + R600_ERR("unsupported %d\n", fb->zsbuf->texture->format); + return NULL; + } + } + offset_db_fmt_cntl |= S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS(depth); rctx->flat_shade = state->flatshade; rstate = radeon_state(rscreen->rw, R600_RASTERIZER_TYPE, R600_RASTERIZER); @@ -777,7 +806,10 @@ static struct radeon_state *r600_rasterizer(struct r600_context *rctx) rstate->states[R600_RASTERIZER__PA_SU_SC_MODE_CNTL] = 0x00080000 | S_028814_CULL_FRONT((state->cull_face & PIPE_FACE_FRONT) ? 1 : 0) | S_028814_CULL_BACK((state->cull_face & PIPE_FACE_BACK) ? 1 : 0) | - S_028814_FACE(!state->front_ccw); + S_028814_FACE(!state->front_ccw) | + S_028814_POLY_OFFSET_FRONT_ENABLE(state->offset_tri) | + S_028814_POLY_OFFSET_BACK_ENABLE(state->offset_tri) | + S_028814_POLY_OFFSET_PARA_ENABLE(state->offset_tri); rstate->states[R600_RASTERIZER__PA_CL_VS_OUT_CNTL] = 0x00000000; rstate->states[R600_RASTERIZER__PA_CL_NANINF_CNTL] = 0x00000000; rstate->states[R600_RASTERIZER__PA_SU_POINT_SIZE] = 0x00080008; @@ -790,12 +822,12 @@ static struct radeon_state *r600_rasterizer(struct r600_context *rctx) rstate->states[R600_RASTERIZER__PA_CL_GB_VERT_DISC_ADJ] = 0x3F800000; rstate->states[R600_RASTERIZER__PA_CL_GB_HORZ_CLIP_ADJ] = 0x3F800000; rstate->states[R600_RASTERIZER__PA_CL_GB_HORZ_DISC_ADJ] = 0x3F800000; - rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_DB_FMT_CNTL] = 0x00000000; + rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_DB_FMT_CNTL] = offset_db_fmt_cntl; rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_CLAMP] = 0x00000000; - rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_FRONT_SCALE] = 0x00000000; - rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_FRONT_OFFSET] = 0x00000000; - rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_BACK_SCALE] = 0x00000000; - rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_BACK_OFFSET] = 0x00000000; + rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_FRONT_SCALE] = fui(offset_scale); + rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_FRONT_OFFSET] = fui(offset_units); + rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_BACK_SCALE] = fui(offset_scale); + rstate->states[R600_RASTERIZER__PA_SU_POLY_OFFSET_BACK_OFFSET] = fui(offset_units); if (radeon_state_pm4(rstate)) { radeon_state_decref(rstate); return NULL; |