diff options
| author | Vito Caputo <vcaputo@pengaru.com> | 2021-09-25 16:01:54 -0700 |
|---|---|---|
| committer | Vito Caputo <vcaputo@pengaru.com> | 2021-09-26 18:05:06 -0700 |
| commit | a59229b6d83057650b320e44ad1f2e74f6fceac7 (patch) | |
| tree | 2e204f70a800fbf0837eae70be93cc03f317747f /src/shader.h | |
| parent | 6f1584f3d16ed04934da9bb1a7591ae3d4127b9a (diff) | |
shader: introduce shader_active_uniforms()
The existing shader api only supports caller-provided uniforms
and attributes at instantiation time, with no ability to
introspect what uniforms are actually actively present in a given
shader.
This commit adds introspection of the active uniforms for a given
shader at creation time, as well as when reloaded, keeping the
information around to be accessed via shader_active_uniforms().
The immediate impetus for this is supporting runtime discovery of
uniforms present in the shader source, with the intention of
exposing these as sequencer tracks for external manipulation.
Diffstat (limited to 'src/shader.h')
| -rw-r--r-- | src/shader.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/shader.h b/src/shader.h index b52189a..a7df2ec 100644 --- a/src/shader.h +++ b/src/shader.h @@ -19,6 +19,12 @@ typedef struct shader_t shader_t; +typedef struct shader_uniform_t { + char *name; + GLenum type; + int location; +} shader_uniform_t; + unsigned int shader_pair_new_bare(const char *vs_src, const char *fs_src); shader_t * shader_pair_new(const char *vs_src, const char *fs_src, unsigned n_uniforms, const char **uniforms, unsigned n_attributes, const char **attributes); shader_t * shader_pair_new_files(const char *vs_path, const char *fs_path, unsigned n_uniforms, const char **uniforms, unsigned n_attributes, const char **attributes); @@ -26,5 +32,6 @@ void shader_ref(shader_t *shader); shader_t * shader_free(shader_t *shader); void shader_use(shader_t *shader, unsigned *res_n_uniforms, int **res_uniform_locations, unsigned *res_n_attributes, int **res_attribute_locations); int shader_reload_files(shader_t *shader); +void shader_active_uniforms(shader_t *shader, int *res_n_uniforms, const shader_uniform_t **res_uniforms); #endif |