From: Marek Olšák <marek.ol...@amd.com>

---
 src/gallium/drivers/radeon/r600_pipe_common.h |  1 +
 src/gallium/drivers/radeonsi/si_state.c       | 18 ++++++++++++++++++
 src/gallium/drivers/radeonsi/si_state.h       |  1 +
 3 files changed, 20 insertions(+)

diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h 
b/src/gallium/drivers/radeon/r600_pipe_common.h
index 56056fa..053c928 100644
--- a/src/gallium/drivers/radeon/r600_pipe_common.h
+++ b/src/gallium/drivers/radeon/r600_pipe_common.h
@@ -284,20 +284,21 @@ struct r600_surface {
 
        bool color_initialized;
        bool depth_initialized;
 
        /* Misc. color flags. */
        bool alphatest_bypass;
        bool export_16bpc;
        bool color_is_int8;
        bool color_is_int10;
        bool dcc_incompatible;
+       bool srgb_allowed;
 
        /* Color registers. */
        unsigned cb_color_info;
        unsigned cb_color_base;
        unsigned cb_color_view;
        unsigned cb_color_size;         /* R600 only */
        unsigned cb_color_dim;          /* EG only */
        unsigned cb_color_pitch;        /* EG and later */
        unsigned cb_color_slice;        /* EG and later */
        unsigned cb_color_attrib;       /* EG and later */
diff --git a/src/gallium/drivers/radeonsi/si_state.c 
b/src/gallium/drivers/radeonsi/si_state.c
index 1cd1f91..4c81c9a 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -421,20 +421,21 @@ static void *si_create_blend_state_mode(struct 
pipe_context *ctx,
        struct si_pm4_state *pm4 = &blend->pm4;
        uint32_t sx_mrt_blend_opt[8] = {0};
        uint32_t color_control = 0;
 
        if (!blend)
                return NULL;
 
        blend->alpha_to_coverage = state->alpha_to_coverage;
        blend->alpha_to_one = state->alpha_to_one;
        blend->dual_src_blend = util_blend_state_is_dual(state, 0);
+       blend->srgb_enable = state->srgb_enable;
 
        if (state->logicop_enable) {
                color_control |= S_028808_ROP3(state->logicop_func | 
(state->logicop_func << 4));
        } else {
                color_control |= S_028808_ROP3(0xcc);
        }
 
        si_pm4_set_reg(pm4, R_028B70_DB_ALPHA_TO_MASK,
                       S_028B70_ALPHA_TO_MASK_ENABLE(state->alpha_to_coverage) |
                       S_028B70_ALPHA_TO_MASK_OFFSET0(2) |
@@ -617,20 +618,27 @@ static void si_bind_blend_state(struct pipe_context *ctx, 
void *state)
        si_pm4_bind_state(sctx, blend, state);
 
        if (!old_blend ||
            old_blend->cb_target_mask != blend->cb_target_mask ||
            old_blend->alpha_to_coverage != blend->alpha_to_coverage ||
            old_blend->alpha_to_one != blend->alpha_to_one ||
            old_blend->dual_src_blend != blend->dual_src_blend ||
            old_blend->blend_enable_4bit != blend->blend_enable_4bit ||
            old_blend->need_src_alpha_4bit != blend->need_src_alpha_4bit)
                sctx->do_update_shaders = true;
+
+       if (!old_blend ||
+           old_blend->srgb_enable != blend->srgb_enable) {
+               sctx->framebuffer.dirty_cbufs =
+                       (1 << sctx->framebuffer.state.nr_cbufs) - 1;
+               si_mark_atom_dirty(sctx, &sctx->framebuffer.atom);
+       }
 }
 
 static void si_delete_blend_state(struct pipe_context *ctx, void *state)
 {
        struct si_context *sctx = (struct si_context *)ctx;
        si_pm4_delete_state(sctx, blend, (struct si_state_blend *)state);
 }
 
 static void si_set_blend_color(struct pipe_context *ctx,
                               const struct pipe_blend_color *state)
@@ -2175,20 +2183,23 @@ static void si_initialize_color_surface(struct 
si_context *sctx,
                } else if (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED) {
                        if (desc->channel[i].pure_integer) {
                                ntype = V_028C70_NUMBER_UINT;
                        } else {
                                assert(desc->channel[i].normalized);
                                ntype = V_028C70_NUMBER_UNORM;
                        }
                }
        }
 
+       surf->srgb_allowed = ntype == V_028C70_NUMBER_UNORM &&
+                            desc->channel[i].size == 8;
+
        format = si_translate_colorformat(surf->base.format);
        if (format == V_028C70_COLOR_INVALID) {
                R600_ERR("Invalid CB format: %d, disabling CB.\n", 
surf->base.format);
        }
        assert(format != V_028C70_COLOR_INVALID);
        swap = r600_translate_colorswap(surf->base.format, false);
        endian = si_colorformat_endian_swap(format);
 
        /* blend clamp should be set for all NORM/SRGB types */
        if (ntype == V_028C70_NUMBER_UNORM ||
@@ -2659,20 +2670,22 @@ static void si_set_framebuffer_state(struct 
pipe_context *ctx,
                sctx->need_check_render_feedback = true;
                sctx->framebuffer.do_update_surf_dirtiness = true;
        }
 }
 
 static void si_emit_framebuffer_state(struct si_context *sctx, struct 
r600_atom *atom)
 {
        struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
        struct pipe_framebuffer_state *state = &sctx->framebuffer.state;
        unsigned i, nr_cbufs = state->nr_cbufs;
+       struct si_state_blend *blend = sctx->queued.named.blend;
+       ubyte srgb_enable = blend ? blend->srgb_enable : 0;
        struct r600_texture *tex = NULL;
        struct r600_surface *cb = NULL;
        unsigned cb_color_info = 0;
 
        /* Colorbuffers. */
        for (i = 0; i < nr_cbufs; i++) {
                uint64_t cb_color_base, cb_color_fmask, cb_dcc_base;
                unsigned cb_color_attrib;
 
                if (!(sctx->framebuffer.dirty_cbufs & (1 << i)))
@@ -2704,20 +2717,25 @@ static void si_emit_framebuffer_state(struct si_context 
*sctx, struct r600_atom
                                                  RADEON_USAGE_READWRITE,
                                                  RADEON_PRIO_DCC);
 
                /* Compute mutable surface parameters. */
                cb_color_base = tex->resource.gpu_address >> 8;
                cb_color_fmask = cb_color_base;
                cb_dcc_base = 0;
                cb_color_info = cb->cb_color_info | tex->cb_color_info;
                cb_color_attrib = cb->cb_color_attrib;
 
+               if (cb->srgb_allowed && srgb_enable & (1 << i)) {
+                       cb_color_info &= C_028C70_NUMBER_TYPE;
+                       cb_color_info |= 
S_028C70_NUMBER_TYPE(V_028C70_NUMBER_SRGB);
+               }
+
                if (tex->fmask.size)
                        cb_color_fmask = (tex->resource.gpu_address + 
tex->fmask.offset) >> 8;
 
                /* Set up DCC. */
                if (vi_dcc_enabled(tex, cb->base.u.tex.level)) {
                        bool is_msaa_resolve_dst = state->cbufs[0] &&
                                                   
state->cbufs[0]->texture->nr_samples > 1 &&
                                                   state->cbufs[1] == &cb->base 
&&
                                                   
state->cbufs[1]->texture->nr_samples <= 1;
 
diff --git a/src/gallium/drivers/radeonsi/si_state.h 
b/src/gallium/drivers/radeonsi/si_state.h
index d8bf13e..991d90d 100644
--- a/src/gallium/drivers/radeonsi/si_state.h
+++ b/src/gallium/drivers/radeonsi/si_state.h
@@ -43,20 +43,21 @@
 struct si_screen;
 struct si_shader;
 struct si_shader_selector;
 
 struct si_state_blend {
        struct si_pm4_state     pm4;
        uint32_t                cb_target_mask;
        bool                    alpha_to_coverage;
        bool                    alpha_to_one;
        bool                    dual_src_blend;
+       ubyte                   srgb_enable;
        /* Set 0xf or 0x0 (4 bits) per render target if the following is
         * true. ANDed with spi_shader_col_format.
         */
        unsigned                blend_enable_4bit;
        unsigned                need_src_alpha_4bit;
 };
 
 struct si_state_rasterizer {
        struct si_pm4_state     pm4;
        /* poly offset states for 16-bit, 24-bit, and 32-bit zbuffers */
-- 
2.7.4

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