Campbell Barton
c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2020 Blender Foundation. All rights reserved. */
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/** \file
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* \ingroup gpu
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*/
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#pragma once
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#include "MEM_guardedalloc.h"
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#include "glew-mx.h"
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#include "gpu_shader_create_info.hh"
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#include "gpu_shader_private.hh"
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namespace blender {
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namespace gpu {
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/**
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* Implementation of shader compilation and uniforms handling using OpenGL.
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*/
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class GLShader : public Shader {
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friend shader::ShaderCreateInfo;
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friend shader::StageInterfaceInfo;
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private:
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/** Handle for full program (links shader stages below). */
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GLuint shader_program_ = 0;
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/** Individual shader stages. */
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GLuint vert_shader_ = 0;
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GLuint geom_shader_ = 0;
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GLuint frag_shader_ = 0;
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GLuint compute_shader_ = 0;
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/** True if any shader failed to compile. */
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bool compilation_failed_ = false;
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eGPUShaderTFBType transform_feedback_type_ = GPU_SHADER_TFB_NONE;
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public:
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GLShader(const char *name);
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~GLShader();
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/** Return true on success. */
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void vertex_shader_from_glsl(MutableSpan<const char *> sources) override;
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void geometry_shader_from_glsl(MutableSpan<const char *> sources) override;
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void fragment_shader_from_glsl(MutableSpan<const char *> sources) override;
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void compute_shader_from_glsl(MutableSpan<const char *> sources) override;
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bool finalize(const shader::ShaderCreateInfo *info = nullptr) override;
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std::string resources_declare(const shader::ShaderCreateInfo &info) const override;
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std::string vertex_interface_declare(const shader::ShaderCreateInfo &info) const override;
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std::string fragment_interface_declare(const shader::ShaderCreateInfo &info) const override;
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std::string geometry_interface_declare(const shader::ShaderCreateInfo &info) const override;
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std::string geometry_layout_declare(const shader::ShaderCreateInfo &info) const override;
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std::string compute_layout_declare(const shader::ShaderCreateInfo &info) const override;
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/** Should be called before linking. */
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void transform_feedback_names_set(Span<const char *> name_list,
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eGPUShaderTFBType geom_type) override;
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bool transform_feedback_enable(GPUVertBuf *buf) override;
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void transform_feedback_disable() override;
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void bind() override;
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void unbind() override;
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void uniform_float(int location, int comp_len, int array_size, const float *data) override;
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void uniform_int(int location, int comp_len, int array_size, const int *data) override;
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void vertformat_from_shader(GPUVertFormat *format) const override;
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/** DEPRECATED: Kept only because of BGL API. */
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int program_handle_get() const override;
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private:
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char *glsl_patch_get(GLenum gl_stage);
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/** Create, compile and attach the shader stage to the shader program. */
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GLuint create_shader_stage(GLenum gl_stage, MutableSpan<const char *> sources);
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/**
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* \brief features available on newer implementation such as native barycentric coordinates
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* and layered rendering, necessitate a geometry shader to work on older hardware.
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*/
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std::string workaround_geometry_shader_source_create(const shader::ShaderCreateInfo &info);
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bool do_geometry_shader_injection(const shader::ShaderCreateInfo *info);
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MEM_CXX_CLASS_ALLOC_FUNCS("GLShader");
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};
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class GLLogParser : public GPULogParser {
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public:
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char *parse_line(char *log_line, GPULogItem &log_item) override;
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protected:
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char *skip_severity_prefix(char *log_line, GPULogItem &log_item);
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char *skip_severity_keyword(char *log_line, GPULogItem &log_item);
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MEM_CXX_CLASS_ALLOC_FUNCS("GLLogParser");
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};
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} // namespace gpu
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} // namespace blender
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