From eb18fea707fd7859e712ee7279e9acc68e177ceb Mon Sep 17 00:00:00 2001 From: Tobias Klausmann Date: Sun, 8 May 2016 22:44:02 +0200 Subject: [PATCH] mesa/main: Add support for GL_ARB_cull_distance (v2) MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit airlied: v2: rename LowerClipDistance to LowerCombinedClipCullDistnace. I don't think we want any other behaviour with any current hw. Signed-off-by: Tobias Klausmann Reviewed-by: Edward O'Callaghan Reviewed-by: Ian Romanick Reviewed-by: Kristian Høgsberg Signed-off-by: Dave Airlie --- src/compiler/glsl/link_varyings.cpp | 2 +- src/compiler/glsl/linker.cpp | 2 +- src/compiler/glsl/lower_clip_distance.cpp | 2 +- src/mesa/drivers/dri/i965/brw_compiler.c | 2 +- src/mesa/main/extensions_table.h | 1 + src/mesa/main/get.c | 1 + src/mesa/main/get_hash_params.py | 4 ++++ src/mesa/main/mtypes.h | 14 +++++++++++++- src/mesa/main/shaderapi.c | 3 +++ src/mesa/state_tracker/st_extensions.c | 2 +- 10 files changed, 27 insertions(+), 6 deletions(-) diff --git a/src/compiler/glsl/link_varyings.cpp b/src/compiler/glsl/link_varyings.cpp index 34e82c7..2555cc9 100644 --- a/src/compiler/glsl/link_varyings.cpp +++ b/src/compiler/glsl/link_varyings.cpp @@ -627,7 +627,7 @@ tfeedback_decl::init(struct gl_context *ctx, const void *mem_ctx, * class must behave specially to account for the fact that gl_ClipDistance * is converted from a float[8] to a vec4[2]. */ - if (ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].LowerClipDistance && + if (ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].LowerCombinedClipCullDistance && strcmp(this->var_name, "gl_ClipDistance") == 0) { this->lowered_builtin_array_variable = clip_distance; } diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp index 0268b74..2a520bc 100644 --- a/src/compiler/glsl/linker.cpp +++ b/src/compiler/glsl/linker.cpp @@ -4560,7 +4560,7 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog) if (!prog->LinkStatus) goto done; - if (ctx->Const.ShaderCompilerOptions[i].LowerClipDistance) { + if (ctx->Const.ShaderCompilerOptions[i].LowerCombinedClipCullDistance) { lower_clip_distance(prog->_LinkedShaders[i]); } diff --git a/src/compiler/glsl/lower_clip_distance.cpp b/src/compiler/glsl/lower_clip_distance.cpp index 1ada215..5d9468d 100644 --- a/src/compiler/glsl/lower_clip_distance.cpp +++ b/src/compiler/glsl/lower_clip_distance.cpp @@ -42,7 +42,7 @@ * * Since some hardware may not internally represent gl_ClipDistance as a pair * of vec4's, this lowering pass is optional. To enable it, set the - * LowerClipDistance flag in gl_shader_compiler_options to true. + * LowerCombinedClipCullDistance flag in gl_shader_compiler_options to true. */ #include "glsl_symbol_table.h" diff --git a/src/mesa/drivers/dri/i965/brw_compiler.c b/src/mesa/drivers/dri/i965/brw_compiler.c index 1e3fb41..82131db 100644 --- a/src/mesa/drivers/dri/i965/brw_compiler.c +++ b/src/mesa/drivers/dri/i965/brw_compiler.c @@ -168,7 +168,7 @@ brw_compiler_create(void *mem_ctx, const struct brw_device_info *devinfo) compiler->glsl_compiler_options[i].EmitNoMainReturn = true; compiler->glsl_compiler_options[i].EmitNoIndirectInput = true; compiler->glsl_compiler_options[i].EmitNoIndirectUniform = false; - compiler->glsl_compiler_options[i].LowerClipDistance = true; + compiler->glsl_compiler_options[i].LowerCombinedClipCullDistance = true; bool is_scalar = compiler->scalar_stage[i]; diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h index 18a5505..471b19f 100644 --- a/src/mesa/main/extensions_table.h +++ b/src/mesa/main/extensions_table.h @@ -44,6 +44,7 @@ EXT(ARB_conditional_render_inverted , ARB_conditional_render_inverted EXT(ARB_conservative_depth , ARB_conservative_depth , GLL, GLC, x , x , 2011) EXT(ARB_copy_buffer , dummy_true , GLL, GLC, x , x , 2008) EXT(ARB_copy_image , ARB_copy_image , GLL, GLC, x , x , 2012) +EXT(ARB_cull_distance , ARB_cull_distance , GLL, GLC, x , x , 2014) EXT(ARB_debug_output , dummy_true , GLL, GLC, x , x , 2009) EXT(ARB_depth_buffer_float , ARB_depth_buffer_float , GLL, GLC, x , x , 2008) EXT(ARB_depth_clamp , ARB_depth_clamp , GLL, GLC, x , x , 2003) diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c index 6829c33..e3a0a11 100644 --- a/src/mesa/main/get.c +++ b/src/mesa/main/get.c @@ -465,6 +465,7 @@ EXTRA_EXT(ARB_shader_storage_buffer_object); EXTRA_EXT(ARB_indirect_parameters); EXTRA_EXT(ATI_meminfo); EXTRA_EXT(NVX_gpu_memory_info); +EXTRA_EXT(ARB_cull_distance); static const int extra_ARB_color_buffer_float_or_glcore[] = { diff --git a/src/mesa/main/get_hash_params.py b/src/mesa/main/get_hash_params.py index 33ec60d..8f693ac 100644 --- a/src/mesa/main/get_hash_params.py +++ b/src/mesa/main/get_hash_params.py @@ -878,6 +878,10 @@ descriptor=[ [ "GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX", "LOC_CUSTOM, TYPE_INT, NO_OFFSET, extra_NVX_gpu_memory_info" ], [ "GPU_MEMORY_INFO_EVICTION_COUNT_NVX", "LOC_CUSTOM, TYPE_INT, NO_OFFSET, extra_NVX_gpu_memory_info" ], [ "GPU_MEMORY_INFO_EVICTED_MEMORY_NVX", "LOC_CUSTOM, TYPE_INT, NO_OFFSET, extra_NVX_gpu_memory_info" ], + +# GL_ARB_cull_distance + [ "MAX_CULL_DISTANCES", "CONTEXT_INT(Const.MaxClipPlanes), extra_ARB_cull_distance" ], + [ "MAX_COMBINED_CLIP_AND_CULL_DISTANCES", "CONTEXT_INT(Const.MaxClipPlanes), extra_ARB_cull_distance" ], ]}, # Enums restricted to OpenGL Core profile diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index d8adf5c..569e0ac 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1922,6 +1922,7 @@ struct gl_program * gl_ClipDistance output. Ignored for fragment shaders. */ unsigned ClipDistanceArraySize; + unsigned CullDistanceArraySize; /** Named parameters, constants, etc. from program text */ @@ -2703,6 +2704,8 @@ struct gl_shader_program */ GLuint ClipDistanceArraySize; /**< Size of the gl_ClipDistance array, or 0 if not present. */ + GLuint CullDistanceArraySize; /**< Size of the gl_CullDistance array, or + 0 if not present. */ } TessEval; /** @@ -2725,6 +2728,8 @@ struct gl_shader_program */ GLuint ClipDistanceArraySize; /**< Size of the gl_ClipDistance array, or 0 if not present. */ + GLuint CullDistanceArraySize; /**< Size of the gl_CullDistance array, or + 0 if not present. */ bool UsesEndPrimitive; bool UsesStreams; } Geom; @@ -2737,6 +2742,8 @@ struct gl_shader_program */ GLuint ClipDistanceArraySize; /**< Size of the gl_ClipDistance array, or 0 if not present. */ + GLuint CullDistanceArraySize; /**< Size of the gl_CullDistance array, or + 0 if not present. */ } Vert; /** @@ -2780,6 +2787,7 @@ struct gl_shader_program * stage before the fragment shader. */ unsigned LastClipDistanceArraySize; + unsigned LastCullDistanceArraySize; unsigned NumUniformBlocks; struct gl_uniform_block *UniformBlocks; @@ -2911,7 +2919,10 @@ struct gl_shader_compiler_options GLboolean EmitNoNoise; /**< Emit NOISE opcodes? */ GLboolean EmitNoPow; /**< Emit POW opcodes? */ GLboolean EmitNoSat; /**< Emit SAT opcodes? */ - GLboolean LowerClipDistance; /**< Lower gl_ClipDistance from float[8] to vec4[2]? */ + GLboolean LowerCombinedClipCullDistance; /** Lower gl_ClipDistance and + * gl_CullDistance together from + * float[8] to vec4[2] + **/ /** * \name Forms of indirect addressing the driver cannot do. @@ -3742,6 +3753,7 @@ struct gl_extensions GLboolean ARB_conditional_render_inverted; GLboolean ARB_conservative_depth; GLboolean ARB_copy_image; + GLboolean ARB_cull_distance; GLboolean ARB_depth_buffer_float; GLboolean ARB_depth_clamp; GLboolean ARB_depth_texture; diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c index 8c1fba8..ae37e94 100644 --- a/src/mesa/main/shaderapi.c +++ b/src/mesa/main/shaderapi.c @@ -2080,6 +2080,7 @@ _mesa_copy_linked_program_data(gl_shader_stage type, switch (type) { case MESA_SHADER_VERTEX: dst->ClipDistanceArraySize = src->Vert.ClipDistanceArraySize; + dst->CullDistanceArraySize = src->Vert.CullDistanceArraySize; break; case MESA_SHADER_TESS_CTRL: { struct gl_tess_ctrl_program *dst_tcp = @@ -2095,6 +2096,7 @@ _mesa_copy_linked_program_data(gl_shader_stage type, dst_tep->VertexOrder = src->TessEval.VertexOrder; dst_tep->PointMode = src->TessEval.PointMode; dst->ClipDistanceArraySize = src->TessEval.ClipDistanceArraySize; + dst->CullDistanceArraySize = src->TessEval.CullDistanceArraySize; break; } case MESA_SHADER_GEOMETRY: { @@ -2105,6 +2107,7 @@ _mesa_copy_linked_program_data(gl_shader_stage type, dst_gp->InputType = src->Geom.InputType; dst_gp->OutputType = src->Geom.OutputType; dst->ClipDistanceArraySize = src->Geom.ClipDistanceArraySize; + dst->CullDistanceArraySize = src->Geom.CullDistanceArraySize; dst_gp->UsesEndPrimitive = src->Geom.UsesEndPrimitive; dst_gp->UsesStreams = src->Geom.UsesStreams; break; diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c index 3f769b6..746f4fc 100644 --- a/src/mesa/state_tracker/st_extensions.c +++ b/src/mesa/state_tracker/st_extensions.c @@ -306,7 +306,7 @@ void st_init_limits(struct pipe_screen *screen, screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT); - options->LowerClipDistance = true; + options->LowerCombinedClipCullDistance = true; options->LowerBufferInterfaceBlocks = true; if (sh == PIPE_SHADER_COMPUTE) -- 2.7.4