From 5eb104d6abc8a500e028de3689ea2d82bf5f97de Mon Sep 17 00:00:00 2001 From: =?utf8?q?Nicolai=20H=C3=A4hnle?= Date: Wed, 6 Jan 2016 17:26:14 -0500 Subject: [PATCH] mesa: merge bind_shader_storage_buffers_{base|range} Reduced code duplication should make the code more maintainable. Reviewed-by: Ian Romanick --- src/mesa/main/bufferobj.c | 162 ++++++++++++-------------------------- 1 file changed, 51 insertions(+), 111 deletions(-) diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index 9a7e41301c5..00680f5a8e6 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -3128,73 +3128,6 @@ unbind_shader_storage_buffers(struct gl_context *ctx, GLuint first, bufObj, -1, -1, GL_TRUE); } -static void -bind_shader_storage_buffers_base(struct gl_context *ctx, GLuint first, - GLsizei count, const GLuint *buffers) -{ - GLint i; - - if (!error_check_bind_shader_storage_buffers(ctx, first, count, - "glBindBuffersBase")) - return; - - /* Assume that at least one binding will be changed */ - FLUSH_VERTICES(ctx, 0); - ctx->NewDriverState |= ctx->DriverFlags.NewShaderStorageBuffer; - - if (!buffers) { - /* The ARB_multi_bind spec says: - * - * "If is NULL, all bindings from through - * +-1 are reset to their unbound (zero) state." - */ - unbind_shader_storage_buffers(ctx, first, count); - return; - } - - /* Note that the error semantics for multi-bind commands differ from - * those of other GL commands. - * - * The Issues section in the ARB_multi_bind spec says: - * - * "(11) Typically, OpenGL specifies that if an error is generated by a - * command, that command has no effect. This is somewhat - * unfortunate for multi-bind commands, because it would require a - * first pass to scan the entire list of bound objects for errors - * and then a second pass to actually perform the bindings. - * Should we have different error semantics? - * - * RESOLVED: Yes. In this specification, when the parameters for - * one of the binding points are invalid, that binding point - * is not updated and an error will be generated. However, other - * binding points in the same command will be updated if their - * parameters are valid and no other error occurs." - */ - - _mesa_begin_bufferobj_lookups(ctx); - - for (i = 0; i < count; i++) { - struct gl_shader_storage_buffer_binding *binding = - &ctx->ShaderStorageBufferBindings[first + i]; - struct gl_buffer_object *bufObj; - - if (binding->BufferObject && binding->BufferObject->Name == buffers[i]) - bufObj = binding->BufferObject; - else - bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i, - "glBindBuffersBase"); - - if (bufObj) { - if (bufObj == ctx->Shared->NullBufferObj) - set_ssbo_binding(ctx, binding, bufObj, -1, -1, GL_TRUE); - else - set_ssbo_binding(ctx, binding, bufObj, 0, 0, GL_TRUE); - } - } - - _mesa_end_bufferobj_lookups(ctx); -} - static void bind_uniform_buffers(struct gl_context *ctx, GLuint first, GLsizei count, const GLuint *buffers, @@ -3307,15 +3240,16 @@ bind_uniform_buffers(struct gl_context *ctx, GLuint first, GLsizei count, } static void -bind_shader_storage_buffers_range(struct gl_context *ctx, GLuint first, - GLsizei count, const GLuint *buffers, - const GLintptr *offsets, - const GLsizeiptr *sizes) +bind_shader_storage_buffers(struct gl_context *ctx, GLuint first, + GLsizei count, const GLuint *buffers, + bool range, + const GLintptr *offsets, + const GLsizeiptr *sizes, + const char *caller) { GLint i; - if (!error_check_bind_shader_storage_buffers(ctx, first, count, - "glBindBuffersRange")) + if (!error_check_bind_shader_storage_buffers(ctx, first, count, caller)) return; /* Assume that at least one binding will be changed */ @@ -3360,52 +3294,57 @@ bind_shader_storage_buffers_range(struct gl_context *ctx, GLuint first, struct gl_shader_storage_buffer_binding *binding = &ctx->ShaderStorageBufferBindings[first + i]; struct gl_buffer_object *bufObj; + GLintptr offset = 0; + GLsizeiptr size = 0; - if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes)) - continue; + if (range) { + if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes)) + continue; - /* The ARB_multi_bind spec says: - * - * "An INVALID_VALUE error is generated by BindBuffersRange if any - * pair of values in and does not respectively - * satisfy the constraints described for those parameters for the - * specified target, as described in section 6.7.1 (per binding)." - * - * Section 6.7.1 refers to table 6.5, which says: - * - * "┌───────────────────────────────────────────────────────────────┐ - * │ Shader storage buffer array bindings (see sec. 7.8) │ - * ├─────────────────────┬─────────────────────────────────────────┤ - * │ ... │ ... │ - * │ offset restriction │ multiple of value of SHADER_STORAGE_- │ - * │ │ BUFFER_OFFSET_ALIGNMENT │ - * │ ... │ ... │ - * │ size restriction │ none │ - * └─────────────────────┴─────────────────────────────────────────┘" - */ - if (offsets[i] & (ctx->Const.ShaderStorageBufferOffsetAlignment - 1)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glBindBuffersRange(offsets[%u]=%" PRId64 - " is misaligned; it must be a multiple of the value of " - "GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT=%u when " - "target=GL_SHADER_STORAGE_BUFFER)", - i, (int64_t) offsets[i], - ctx->Const.ShaderStorageBufferOffsetAlignment); - continue; + /* The ARB_multi_bind spec says: + * + * "An INVALID_VALUE error is generated by BindBuffersRange if any + * pair of values in and does not respectively + * satisfy the constraints described for those parameters for the + * specified target, as described in section 6.7.1 (per binding)." + * + * Section 6.7.1 refers to table 6.5, which says: + * + * "┌───────────────────────────────────────────────────────────────┐ + * │ Shader storage buffer array bindings (see sec. 7.8) │ + * ├─────────────────────┬─────────────────────────────────────────┤ + * │ ... │ ... │ + * │ offset restriction │ multiple of value of SHADER_STORAGE_- │ + * │ │ BUFFER_OFFSET_ALIGNMENT │ + * │ ... │ ... │ + * │ size restriction │ none │ + * └─────────────────────┴─────────────────────────────────────────┘" + */ + if (offsets[i] & (ctx->Const.ShaderStorageBufferOffsetAlignment - 1)) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBuffersRange(offsets[%u]=%" PRId64 + " is misaligned; it must be a multiple of the value of " + "GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT=%u when " + "target=GL_SHADER_STORAGE_BUFFER)", + i, (int64_t) offsets[i], + ctx->Const.ShaderStorageBufferOffsetAlignment); + continue; + } + + offset = offsets[i]; + size = sizes[i]; } if (binding->BufferObject && binding->BufferObject->Name == buffers[i]) bufObj = binding->BufferObject; else - bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i, - "glBindBuffersRange"); + bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i, caller); if (bufObj) { if (bufObj == ctx->Shared->NullBufferObj) - set_ssbo_binding(ctx, binding, bufObj, -1, -1, GL_FALSE); + set_ssbo_binding(ctx, binding, bufObj, -1, -1, !range); else - set_ssbo_binding(ctx, binding, bufObj, - offsets[i], sizes[i], GL_FALSE); + set_ssbo_binding(ctx, binding, bufObj, offset, size, !range); } } @@ -3960,8 +3899,8 @@ _mesa_BindBuffersRange(GLenum target, GLuint first, GLsizei count, "glBindBuffersRange"); return; case GL_SHADER_STORAGE_BUFFER: - bind_shader_storage_buffers_range(ctx, first, count, buffers, offsets, - sizes); + bind_shader_storage_buffers(ctx, first, count, buffers, true, offsets, sizes, + "glBindBuffersRange"); return; case GL_ATOMIC_COUNTER_BUFFER: bind_atomic_buffers_range(ctx, first, count, buffers, @@ -3995,7 +3934,8 @@ _mesa_BindBuffersBase(GLenum target, GLuint first, GLsizei count, "glBindBuffersBase"); return; case GL_SHADER_STORAGE_BUFFER: - bind_shader_storage_buffers_base(ctx, first, count, buffers); + bind_shader_storage_buffers(ctx, first, count, buffers, false, NULL, NULL, + "glBindBuffersBase"); return; case GL_ATOMIC_COUNTER_BUFFER: bind_atomic_buffers_base(ctx, first, count, buffers); -- 2.30.2