From 208d1ed38ddb7de8211a9ffc3d89ae176ef7e9d4 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Wed, 7 Oct 2015 01:47:00 +0200 Subject: [PATCH] radeonsi: implement fragment color clamping MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit using the shader key for now. Reviewed-by: Michel Dänzer --- src/gallium/drivers/radeonsi/si_pipe.c | 2 +- src/gallium/drivers/radeonsi/si_shader.c | 13 +++++++++++++ src/gallium/drivers/radeonsi/si_shader.h | 1 + src/gallium/drivers/radeonsi/si_state.c | 2 +- src/gallium/drivers/radeonsi/si_state.h | 1 + src/gallium/drivers/radeonsi/si_state_shaders.c | 1 + 6 files changed, 18 insertions(+), 2 deletions(-) diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c index a0283b7c966..f03d02bd287 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.c +++ b/src/gallium/drivers/radeonsi/si_pipe.c @@ -271,6 +271,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_START_INSTANCE: case PIPE_CAP_NPOT_TEXTURES: case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES: + case PIPE_CAP_FRAGMENT_COLOR_CLAMPED: case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: case PIPE_CAP_TGSI_INSTANCEID: case PIPE_CAP_COMPUTE: @@ -330,7 +331,6 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param) /* Unsupported features. */ case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS: - case PIPE_CAP_FRAGMENT_COLOR_CLAMPED: case PIPE_CAP_VERTEX_COLOR_CLAMPED: case PIPE_CAP_USER_VERTEX_BUFFERS: case PIPE_CAP_FAKE_SW_MSAA: diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 49ab9404b81..c7ebb0f29bd 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -2110,6 +2110,7 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base) struct lp_build_context * base = &bld_base->base; struct lp_build_context * uint = &bld_base->uint_bld; struct tgsi_shader_info *info = &shader->selector->info; + LLVMBuilderRef builder = base->gallivm->builder; LLVMValueRef args[9]; LLVMValueRef last_args[9] = { 0 }; int depth_index = -1, stencil_index = -1, samplemask_index = -1; @@ -2136,6 +2137,16 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base) target = V_008DFC_SQ_EXP_MRT + semantic_index; alpha_ptr = si_shader_ctx->radeon_bld.soa.outputs[i][3]; + if (si_shader_ctx->shader->key.ps.clamp_color) { + for (int j = 0; j < 4; j++) { + LLVMValueRef ptr = si_shader_ctx->radeon_bld.soa.outputs[i][j]; + LLVMValueRef result = LLVMBuildLoad(builder, ptr, ""); + + result = radeon_llvm_saturate(bld_base, result); + LLVMBuildStore(builder, result, ptr); + } + } + if (si_shader_ctx->shader->key.ps.alpha_to_one) LLVMBuildStore(base->gallivm->builder, base->one, alpha_ptr); @@ -2146,6 +2157,7 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base) if (si_shader_ctx->shader->key.ps.poly_line_smoothing) si_scale_alpha_by_sample_mask(bld_base, alpha_ptr); + break; default: target = 0; @@ -4000,6 +4012,7 @@ void si_dump_shader_key(unsigned shader, union si_shader_key *key, FILE *f) fprintf(f, " alpha_func = %u\n", key->ps.alpha_func); fprintf(f, " alpha_to_one = %u\n", key->ps.alpha_to_one); fprintf(f, " poly_stipple = %u\n", key->ps.poly_stipple); + fprintf(f, " clamp_color = %u\n", key->ps.clamp_color); break; default: diff --git a/src/gallium/drivers/radeonsi/si_shader.h b/src/gallium/drivers/radeonsi/si_shader.h index cccc4607977..fa5930ad1d5 100644 --- a/src/gallium/drivers/radeonsi/si_shader.h +++ b/src/gallium/drivers/radeonsi/si_shader.h @@ -227,6 +227,7 @@ union si_shader_key { unsigned alpha_to_one:1; unsigned poly_stipple:1; unsigned poly_line_smoothing:1; + unsigned clamp_color:1; } ps; struct { unsigned instance_divisors[SI_NUM_VERTEX_BUFFERS]; diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 00d4bc1fbc2..3aafe8a602f 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -694,7 +694,7 @@ static void *si_create_rs_state(struct pipe_context *ctx, rs->poly_smooth = state->poly_smooth; rs->uses_poly_offset = state->offset_point || state->offset_line || state->offset_tri; - + rs->clamp_fragment_color = state->clamp_fragment_color; rs->flatshade = state->flatshade; rs->sprite_coord_enable = state->sprite_coord_enable; rs->pa_sc_line_stipple = state->line_stipple_enable ? diff --git a/src/gallium/drivers/radeonsi/si_state.h b/src/gallium/drivers/radeonsi/si_state.h index 6a567688ee4..fba6619d2fd 100644 --- a/src/gallium/drivers/radeonsi/si_state.h +++ b/src/gallium/drivers/radeonsi/si_state.h @@ -60,6 +60,7 @@ struct si_state_rasterizer { bool line_smooth; bool poly_smooth; bool uses_poly_offset; + bool clamp_fragment_color; }; struct si_dsa_stencil_ref_part { diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c index 71349a56323..c00f8f4101c 100644 --- a/src/gallium/drivers/radeonsi/si_state_shaders.c +++ b/src/gallium/drivers/radeonsi/si_state_shaders.c @@ -572,6 +572,7 @@ static inline void si_shader_selector_key(struct pipe_context *ctx, key->ps.poly_line_smoothing = ((is_poly && rs->poly_smooth) || (is_line && rs->line_smooth)) && sctx->framebuffer.nr_samples <= 1; + key->ps.clamp_color = rs->clamp_fragment_color; } key->ps.alpha_func = PIPE_FUNC_ALWAYS; -- 2.30.2