From f024c724766b1040176a329fbedff7cd5dc47cca Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 4 Mar 2013 06:19:07 +1000 Subject: [PATCH] r600g: add get_sample_position support (v3) 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 --- 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 */ -- 2.7.4