diff options
Diffstat (limited to 'drivers/gles3/shader_gles3.h')
| -rw-r--r-- | drivers/gles3/shader_gles3.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/gles3/shader_gles3.h b/drivers/gles3/shader_gles3.h index 54a3688ea2..bc593fb187 100644 --- a/drivers/gles3/shader_gles3.h +++ b/drivers/gles3/shader_gles3.h @@ -40,8 +40,7 @@ #include "core/variant/variant.h" #include "servers/rendering_server.h" -#include "drivers/gles3/rasterizer_platforms.h" -#ifdef GLES3_BACKEND_ENABLED +#ifdef GLES3_ENABLED // This must come first to avoid windows.h mess #include "platform_config.h" @@ -70,13 +69,17 @@ protected: struct Specialization { const char *name; - bool defalut_value = false; + bool default_value = false; }; private: //versions CharString general_defines; + // A version is a high-level construct which is a combination of built-in and user-defined shader code + // Variants use #idefs to toggle behaviour on and off to change behaviour of the shader + // Specializations use #ifdefs to toggle behaviour on and off for performance, on supporting hardware, they will compile a version with everything enabled, and then compile more copies to improve performance + // Use specializations to enable and disabled advanced features, use variants to toggle behaviour when different data may be used (e.g. using a samplerArray vs a sampler) struct Version { Vector<StringName> texture_uniforms; CharString uniforms; @@ -172,6 +175,7 @@ private: int variant_count = 0; int base_texture_index = 0; + Version::Specialization *current_shader = nullptr; protected: ShaderGLES3(); @@ -209,6 +213,14 @@ protected: ERR_FAIL_COND(!spec->ok); // Should never happen glUseProgram(spec->id); + current_shader = spec; + } + + _FORCE_INLINE_ int _version_get_uniform(int p_which, RID p_version, int p_variant, uint64_t p_specialization) { + ERR_FAIL_INDEX_V(p_which, uniform_count, -1); + Version *version = version_owner.get_or_null(p_version); + ERR_FAIL_COND_V(!version, -1); + return version->variants[p_variant].lookup_ptr(p_specialization)->uniform_location[p_which]; } virtual void _init() = 0; |