diff options
| -rw-r--r-- | src/mesa/main/bufferobj.c | 56 |
1 files changed, 40 insertions, 16 deletions
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index 65fa740a438..4d53e5c793e 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -2613,13 +2613,45 @@ bind_buffer_base_uniform_buffer(struct gl_context *ctx, set_ubo_binding(ctx, index, bufObj, 0, 0, GL_TRUE); } +/** + * Binds a buffer object to an atomic buffer binding point. + * + * The caller is responsible for validating the offset, + * flushing the vertices and updating NewDriverState. + */ static void set_atomic_buffer_binding(struct gl_context *ctx, - unsigned index, + struct gl_atomic_buffer_binding *binding, struct gl_buffer_object *bufObj, GLintptr offset, - GLsizeiptr size, - const char *name) + GLsizeiptr size) +{ + _mesa_reference_buffer_object(ctx, &binding->BufferObject, bufObj); + + if (bufObj == ctx->Shared->NullBufferObj) { + binding->Offset = -1; + binding->Size = -1; + } else { + binding->Offset = offset; + binding->Size = size; + } +} + +/** + * Binds a buffer object to an atomic buffer binding point. + * + * Unlike set_atomic_buffer_binding(), this function also validates the + * index and offset, flushes vertices, and updates NewDriverState. + * It also checks if the binding has actually changing before + * updating it. + */ +static void +bind_atomic_buffer(struct gl_context *ctx, + unsigned index, + struct gl_buffer_object *bufObj, + GLintptr offset, + GLsizeiptr size, + const char *name) { struct gl_atomic_buffer_binding *binding; @@ -2647,15 +2679,7 @@ set_atomic_buffer_binding(struct gl_context *ctx, FLUSH_VERTICES(ctx, 0); ctx->NewDriverState |= ctx->DriverFlags.NewAtomicBuffer; - _mesa_reference_buffer_object(ctx, &binding->BufferObject, bufObj); - - if (bufObj == ctx->Shared->NullBufferObj) { - binding->Offset = -1; - binding->Size = -1; - } else { - binding->Offset = offset; - binding->Size = size; - } + set_atomic_buffer_binding(ctx, binding, bufObj, offset, size); } void GLAPIENTRY @@ -2697,8 +2721,8 @@ _mesa_BindBufferRange(GLenum target, GLuint index, bind_buffer_range_uniform_buffer(ctx, index, bufObj, offset, size); return; case GL_ATOMIC_COUNTER_BUFFER: - set_atomic_buffer_binding(ctx, index, bufObj, offset, size, - "glBindBufferRange"); + bind_atomic_buffer(ctx, index, bufObj, offset, size, + "glBindBufferRange"); return; default: _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferRange(target)"); @@ -2761,8 +2785,8 @@ _mesa_BindBufferBase(GLenum target, GLuint index, GLuint buffer) bind_buffer_base_uniform_buffer(ctx, index, bufObj); return; case GL_ATOMIC_COUNTER_BUFFER: - set_atomic_buffer_binding(ctx, index, bufObj, 0, 0, - "glBindBufferBase"); + bind_atomic_buffer(ctx, index, bufObj, 0, 0, + "glBindBufferBase"); return; default: _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferBase(target)"); |