From 86e1768c13d67945f4a9549820e711b70ff2aba7 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Sat, 26 Mar 2016 11:46:53 -0600 Subject: [PATCH] tgsi: collect texture sampler target info in tgsi_scan_shader() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Texture sample instructions specify a sampler unit and texture target such as "1D", "2D", "CUBE", etc. Sampler view declarations also specify the sampler unit and texture target. This patch checks that the texture instructions agree with the declarations and collects the texture target type for each sampler unit. v2: only compare instruction's texture target to the sampler view declaration target if the instruction is a TEX instruction, not a SAMPLE instruction. Reviewed-by: José Fonseca Reviewed-by: Roland Scheidegger --- src/gallium/auxiliary/tgsi/tgsi_scan.c | 38 ++++++++++++++++++++++++-- src/gallium/auxiliary/tgsi/tgsi_scan.h | 1 + 2 files changed, 37 insertions(+), 2 deletions(-) diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c index d32c3a14344..6d4b00d8879 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_scan.c +++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c @@ -181,11 +181,33 @@ scan_instruction(struct tgsi_shader_info *info, info->indirect_files_read |= (1 << src->Register.File); } - /* MSAA samplers */ + /* Texture samplers */ if (src->Register.File == TGSI_FILE_SAMPLER) { + const unsigned index = src->Register.Index; + const unsigned target = fullinst->Texture.Texture; + assert(fullinst->Instruction.Texture); - assert(src->Register.Index < Elements(info->is_msaa_sampler)); + assert(index < Elements(info->is_msaa_sampler)); + assert(index < PIPE_MAX_SAMPLERS); + assert(target < TGSI_TEXTURE_UNKNOWN); + + if (tgsi_get_opcode_info(fullinst->Instruction.Opcode)->is_tex) { + /* for texture instructions, check that the texture instruction + * target matches the previous sampler view declaration (if there + * was one.) + */ + if (info->sampler_targets[index] == TGSI_TEXTURE_UNKNOWN) { + /* probably no sampler view declaration */ + info->sampler_targets[index] = target; + } else { + /* Make sure the texture instruction's sampler/target info + * agrees with the sampler view declaration. + */ + assert(info->sampler_targets[index] == target); + } + } + /* MSAA samplers */ if (fullinst->Instruction.Texture && (fullinst->Texture.Texture == TGSI_TEXTURE_2D_MSAA || fullinst->Texture.Texture == TGSI_TEXTURE_2D_ARRAY_MSAA)) { @@ -431,6 +453,16 @@ scan_declaration(struct tgsi_shader_info *info, } } else if (file == TGSI_FILE_SAMPLER) { info->samplers_declared |= 1 << reg; + } else if (file == TGSI_FILE_SAMPLER_VIEW) { + unsigned target = fulldecl->SamplerView.Resource; + assert(target < TGSI_TEXTURE_UNKNOWN); + if (info->sampler_targets[reg] == TGSI_TEXTURE_UNKNOWN) { + /* Save sampler target for this sampler index */ + info->sampler_targets[reg] = target; + } else { + /* if previously declared, make sure targets agree */ + assert(info->sampler_targets[reg] == target); + } } else if (file == TGSI_FILE_IMAGE) { if (fulldecl->Image.Resource == TGSI_TEXTURE_BUFFER) info->images_buffers |= 1 << reg; @@ -493,6 +525,8 @@ tgsi_scan_shader(const struct tgsi_token *tokens, for (i = 0; i < Elements(info->const_file_max); i++) info->const_file_max[i] = -1; info->properties[TGSI_PROPERTY_GS_INVOCATIONS] = 1; + for (i = 0; i < Elements(info->sampler_targets); i++) + info->sampler_targets[i] = TGSI_TEXTURE_UNKNOWN; /** ** Setup to begin parsing input shader diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h index 76d8925119e..31adce7a603 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_scan.h +++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h @@ -65,6 +65,7 @@ struct tgsi_shader_info int file_max[TGSI_FILE_COUNT]; /**< highest index of declared registers */ int const_file_max[PIPE_MAX_CONSTANT_BUFFERS]; unsigned samplers_declared; /**< bitmask of declared samplers */ + ubyte sampler_targets[PIPE_MAX_SHADER_SAMPLER_VIEWS]; /**< TGSI_TEXTURE_x values */ ubyte input_array_first[PIPE_MAX_SHADER_INPUTS]; ubyte input_array_last[PIPE_MAX_SHADER_INPUTS]; -- 2.30.2