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author | Fabian Bieler <fabianbieler@fastmail.fm> | 2014-03-10 17:55:36 +0100 |
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committer | Marek Olšák <marek.olsak@amd.com> | 2015-07-23 00:59:27 +0200 |
commit | 73a9a1539a85ae8fe22e11b4064105d588597736 (patch) | |
tree | 74aa1f405af4f0163138272519f8666a63e01144 /src/glsl/link_varyings.cpp | |
parent | 54f29502972cdd33302e69e029c8d07fb31b7bdf (diff) | |
download | external_mesa3d-73a9a1539a85ae8fe22e11b4064105d588597736.zip external_mesa3d-73a9a1539a85ae8fe22e11b4064105d588597736.tar.gz external_mesa3d-73a9a1539a85ae8fe22e11b4064105d588597736.tar.bz2 |
glsl: lower gl_TessLevel* from float[n] to vecn.
Similar to gl_ClipDistance -> gl_ClipDistanceMESA
v2: - renamed is_mesa_var to lowered_builtin_array_variable
- moved LowerTessLevel into gl_constants
- cosmetic changes in lower_tess_level.cpp
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src/glsl/link_varyings.cpp')
-rw-r--r-- | src/glsl/link_varyings.cpp | 51 |
1 files changed, 42 insertions, 9 deletions
diff --git a/src/glsl/link_varyings.cpp b/src/glsl/link_varyings.cpp index 9174e9c..f7c219e 100644 --- a/src/glsl/link_varyings.cpp +++ b/src/glsl/link_varyings.cpp @@ -328,7 +328,7 @@ tfeedback_decl::init(struct gl_context *ctx, const void *mem_ctx, this->location = -1; this->orig_name = input; - this->is_clip_distance_mesa = false; + this->lowered_builtin_array_variable = none; this->skip_components = 0; this->next_buffer_separator = false; this->matched_candidate = NULL; @@ -377,8 +377,15 @@ tfeedback_decl::init(struct gl_context *ctx, const void *mem_ctx, */ if (ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].LowerClipDistance && strcmp(this->var_name, "gl_ClipDistance") == 0) { - this->is_clip_distance_mesa = true; + this->lowered_builtin_array_variable = clip_distance; } + + if (ctx->Const.LowerTessLevel && + (strcmp(this->var_name, "gl_TessLevelOuter") == 0)) + this->lowered_builtin_array_variable = tess_level_outer; + if (ctx->Const.LowerTessLevel && + (strcmp(this->var_name, "gl_TessLevelInner") == 0)) + this->lowered_builtin_array_variable = tess_level_inner; } @@ -425,9 +432,22 @@ tfeedback_decl::assign_location(struct gl_context *ctx, this->matched_candidate->type->fields.array->matrix_columns; const unsigned vector_elements = this->matched_candidate->type->fields.array->vector_elements; - unsigned actual_array_size = this->is_clip_distance_mesa ? - prog->LastClipDistanceArraySize : - this->matched_candidate->type->array_size(); + unsigned actual_array_size; + switch (this->lowered_builtin_array_variable) { + case clip_distance: + actual_array_size = prog->LastClipDistanceArraySize; + break; + case tess_level_outer: + actual_array_size = 4; + break; + case tess_level_inner: + actual_array_size = 2; + break; + case none: + default: + actual_array_size = this->matched_candidate->type->array_size(); + break; + } if (this->is_subscripted) { /* Check array bounds. */ @@ -438,7 +458,7 @@ tfeedback_decl::assign_location(struct gl_context *ctx, actual_array_size); return false; } - unsigned array_elem_size = this->is_clip_distance_mesa ? + unsigned array_elem_size = this->lowered_builtin_array_variable ? 1 : vector_elements * matrix_cols; fine_location += array_elem_size * this->array_subscript; this->size = 1; @@ -447,7 +467,7 @@ tfeedback_decl::assign_location(struct gl_context *ctx, } this->vector_elements = vector_elements; this->matrix_columns = matrix_cols; - if (this->is_clip_distance_mesa) + if (this->lowered_builtin_array_variable) this->type = GL_FLOAT; else this->type = this->matched_candidate->type->fields.array->gl_type; @@ -570,8 +590,21 @@ const tfeedback_candidate * tfeedback_decl::find_candidate(gl_shader_program *prog, hash_table *tfeedback_candidates) { - const char *name = this->is_clip_distance_mesa - ? "gl_ClipDistanceMESA" : this->var_name; + const char *name = this->var_name; + switch (this->lowered_builtin_array_variable) { + case none: + name = this->var_name; + break; + case clip_distance: + name = "gl_ClipDistanceMESA"; + break; + case tess_level_outer: + name = "gl_TessLevelOuterMESA"; + break; + case tess_level_inner: + name = "gl_TessLevelInnerMESA"; + break; + } this->matched_candidate = (const tfeedback_candidate *) hash_table_find(tfeedback_candidates, name); if (!this->matched_candidate) { |