From e8dd7cc303b03b3d7df91b12d667f82b06a910f5 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Nicolai=20H=C3=A4hnle?= Date: Wed, 6 Jan 2016 17:20:57 -0500 Subject: [PATCH] mesa: merge bind_uniform_buffers_{base|range} Reduced code duplication should make the code more maintainable. Reviewed-by: Ian Romanick --- src/mesa/main/bufferobj.c | 158 +++++++++++++++------------------------------- 1 file changed, 50 insertions(+), 108 deletions(-) diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index aaca13c..9a7e413 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -3129,72 +3129,6 @@ unbind_shader_storage_buffers(struct gl_context *ctx, GLuint first, } static void -bind_uniform_buffers_base(struct gl_context *ctx, GLuint first, GLsizei count, - const GLuint *buffers) -{ - GLint i; - - if (!error_check_bind_uniform_buffers(ctx, first, count, "glBindBuffersBase")) - return; - - /* Assume that at least one binding will be changed */ - FLUSH_VERTICES(ctx, 0); - ctx->NewDriverState |= ctx->DriverFlags.NewUniformBuffer; - - if (!buffers) { - /* The ARB_multi_bind spec says: - * - * "If is NULL, all bindings from through - * +-1 are reset to their unbound (zero) state." - */ - unbind_uniform_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_uniform_buffer_binding *binding = - &ctx->UniformBufferBindings[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_ubo_binding(ctx, binding, bufObj, -1, -1, GL_TRUE); - else - set_ubo_binding(ctx, binding, bufObj, 0, 0, GL_TRUE); - } - } - - _mesa_end_bufferobj_lookups(ctx); -} - -static void bind_shader_storage_buffers_base(struct gl_context *ctx, GLuint first, GLsizei count, const GLuint *buffers) { @@ -3262,14 +3196,15 @@ bind_shader_storage_buffers_base(struct gl_context *ctx, GLuint first, } static void -bind_uniform_buffers_range(struct gl_context *ctx, GLuint first, GLsizei count, - const GLuint *buffers, - const GLintptr *offsets, const GLsizeiptr *sizes) +bind_uniform_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_uniform_buffers(ctx, first, count, - "glBindBuffersRange")) + if (!error_check_bind_uniform_buffers(ctx, first, count, caller)) return; /* Assume that at least one binding will be changed */ @@ -3314,52 +3249,57 @@ bind_uniform_buffers_range(struct gl_context *ctx, GLuint first, GLsizei count, struct gl_uniform_buffer_binding *binding = &ctx->UniformBufferBindings[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: - * - * "┌───────────────────────────────────────────────────────────────┐ - * │ Uniform buffer array bindings (see sec. 7.6) │ - * ├─────────────────────┬─────────────────────────────────────────┤ - * │ ... │ ... │ - * │ offset restriction │ multiple of value of UNIFORM_BUFFER_- │ - * │ │ OFFSET_ALIGNMENT │ - * │ ... │ ... │ - * │ size restriction │ none │ - * └─────────────────────┴─────────────────────────────────────────┘" - */ - if (offsets[i] & (ctx->Const.UniformBufferOffsetAlignment - 1)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glBindBuffersRange(offsets[%u]=%" PRId64 - " is misaligned; it must be a multiple of the value of " - "GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT=%u when " - "target=GL_UNIFORM_BUFFER)", - i, (int64_t) offsets[i], - ctx->Const.UniformBufferOffsetAlignment); - 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: + * + * "┌───────────────────────────────────────────────────────────────┐ + * │ Uniform buffer array bindings (see sec. 7.6) │ + * ├─────────────────────┬─────────────────────────────────────────┤ + * │ ... │ ... │ + * │ offset restriction │ multiple of value of UNIFORM_BUFFER_- │ + * │ │ OFFSET_ALIGNMENT │ + * │ ... │ ... │ + * │ size restriction │ none │ + * └─────────────────────┴─────────────────────────────────────────┘" + */ + if (offsets[i] & (ctx->Const.UniformBufferOffsetAlignment - 1)) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBuffersRange(offsets[%u]=%" PRId64 + " is misaligned; it must be a multiple of the value of " + "GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT=%u when " + "target=GL_UNIFORM_BUFFER)", + i, (int64_t) offsets[i], + ctx->Const.UniformBufferOffsetAlignment); + 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_ubo_binding(ctx, binding, bufObj, -1, -1, GL_FALSE); + set_ubo_binding(ctx, binding, bufObj, -1, -1, !range); else - set_ubo_binding(ctx, binding, bufObj, - offsets[i], sizes[i], GL_FALSE); + set_ubo_binding(ctx, binding, bufObj, offset, size, !range); } } @@ -4016,7 +3956,8 @@ _mesa_BindBuffersRange(GLenum target, GLuint first, GLsizei count, "glBindBuffersRange"); return; case GL_UNIFORM_BUFFER: - bind_uniform_buffers_range(ctx, first, count, buffers, offsets, sizes); + bind_uniform_buffers(ctx, first, count, buffers, true, offsets, sizes, + "glBindBuffersRange"); return; case GL_SHADER_STORAGE_BUFFER: bind_shader_storage_buffers_range(ctx, first, count, buffers, offsets, @@ -4050,7 +3991,8 @@ _mesa_BindBuffersBase(GLenum target, GLuint first, GLsizei count, "glBindBuffersBase"); return; case GL_UNIFORM_BUFFER: - bind_uniform_buffers_base(ctx, first, count, buffers); + bind_uniform_buffers(ctx, first, count, buffers, false, NULL, NULL, + "glBindBuffersBase"); return; case GL_SHADER_STORAGE_BUFFER: bind_shader_storage_buffers_base(ctx, first, count, buffers); -- 2.7.4