mesa: Add shader storage buffer support to struct gl_context

This includes the array of bindings, the current buffer bound to the
GL_SHADER_STORAGE_BUFFER target and a set of general limits and default
values for shader storage buffers.

v2:
- Use spec values for the new defined constants (Jordan)

Reviewed-by: Jordan Justen <[email protected]>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 66dee680258..c5d4adada48 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -112,6 +112,11 @@ get_buffer_target(struct gl_context *ctx, GLenum target)
          return &ctx->UniformBuffer;
       }
       break;
+   case GL_SHADER_STORAGE_BUFFER:
+      if (ctx->Extensions.ARB_shader_storage_buffer_object) {
+         return &ctx->ShaderStorageBuffer;
+      }
+      break;
    case GL_ATOMIC_COUNTER_BUFFER:
       if (ctx->Extensions.ARB_shader_atomic_counters) {
          return &ctx->AtomicBuffer;