Exemple #1
0
    def check_capture(self, capture_filename: str,
                      controller: rd.ReplayController):
        self.controller = controller

        self.controller.SetFrameEvent(
            self.find_draw("Quad").next.eventId, False)

        self.out: rd.ReplayOutput = self.controller.CreateOutput(
            rd.CreateHeadlessWindowingData(200, 200), rd.ReplayOutputType.Mesh)

        pipe: rd.PipeState = self.controller.GetPipelineState()

        self.cfg = rd.MeshDisplay()

        cam: rd.Camera = rd.InitCamera(rd.CameraType.FPSLook)

        cam.SetPosition(0, 0, 0)
        cam.SetFPSRotation(0, 0, 0)

        self.cfg.type = rd.MeshDataStage.VSOut
        self.cfg.cam = cam

        # Position is always first, so getting the postvs data will give us
        inst0: rd.MeshFormat = self.controller.GetPostVSData(
            0, 0, self.cfg.type)
        self.cfg.position = inst0

        # after position we have float2 Color2 then float4 Color4
        self.cfg.second = self.cfg.position
        self.cfg.second.vertexByteOffset += 16
        self.cfg.second.vertexByteOffset += 8
        if pipe.HasAlignedPostVSData(self.cfg.type):
            self.cfg.second.vertexByteOffset += 8

        # Configure an ortho camera, even though we don't really have a camera
        self.cfg.ortho = True
        self.cfg.position.nearPlane = 1.0
        self.cfg.position.farPlane = 100.0
        self.cfg.aspect = 1.0
        self.cfg.wireframeDraw = True
        self.cfg.position.meshColor = rd.FloatVector(1.0, 0.0, 1.0, 1.0)

        self.cache_output()

        # We should have a single quad, check each outside edge and the inside diagonal.
        # All these line segments should have some colors (not including the background checkerboard or the frustum)
        self.check_region((55, 95, 65, 95), lambda x: x != [])  # Left edge
        self.check_region((85, 60, 85, 70), lambda x: x != [])  # Top edge
        self.check_region((105, 100, 115, 100),
                          lambda x: x != [])  # Right edge
        self.check_region((90, 130, 90, 140), lambda x: x != [])  # Bottom edge
        self.check_region((65, 120, 75, 120),
                          lambda x: x != [])  # Bottom-Left of diagonal
        self.check_region((105, 70, 110, 70),
                          lambda x: x != [])  # Top-right of diagonal

        rdtest.log.success("Base rendering is as expected")

        self.cfg.solidShadeMode = rd.SolidShade.Secondary
        self.cfg.wireframeDraw = False

        # allow for blending with white for the frustum
        isred = lambda col: col[0] > col[1] and col[1] == col[2]
        isgreen = lambda col: col[1] > col[0] and col[0] == col[2]
        isblue = lambda col: col[2] > col[0] and col[0] == col[1]

        isredgreen = lambda col: isred(col) or isgreen(col) or col[2] == 0

        isyellow = lambda col: col[0] == col[1] and col[2] < col[1]

        self.cache_output()

        # The secondary color should be completely green
        self.check_region((85, 70, 85, 125),
                          lambda x: all([isgreen(i) for i in x]))
        self.check_region((65, 100, 105, 100),
                          lambda x: all([isgreen(i) for i in x]))
        # this line segment isn't in the first instance
        self.check_region((65, 55, 105, 55), lambda x: x == [])
        # this line segment isn't in the second instance
        self.check_region((65, 125, 105, 125),
                          lambda x: all([isgreen(i) for i in x]))

        rdtest.log.success("Secondary rendering of instance 0 is as expected")

        # Out of bounds should look the same as without highlighting at all, check the corners are all still green
        self.cfg.highlightVert = 9

        self.cache_output()

        self.check_region((55, 60, 65, 70),
                          lambda x: all([isgreen(i) for i in x]))
        self.check_region((105, 60, 115, 70),
                          lambda x: all([isgreen(i) for i in x]))
        self.check_region((55, 130, 65, 140),
                          lambda x: all([isgreen(i) for i in x]))
        self.check_region((105, 130, 115, 140),
                          lambda x: all([isgreen(i) for i in x]))

        vert_regions = [
            (55, 60, 65, 70),
            (110, 60, 120, 70),
            (55, 130, 65, 140),
            (110, 60, 120, 70),
            (110, 130, 120, 140),
            (55, 130, 65, 140),
        ]

        for vert in range(6):
            self.cfg.highlightVert = vert

            self.cache_output()

            tri = int(vert / 3)

            # Check that the triangle we're highlighting is red and the other is green
            if tri == 0:
                self.check_region((65, 75, 75, 85),
                                  lambda x: all([isred(i) for i in x]))
                self.check_region((100, 115, 110, 125),
                                  lambda x: all([isgreen(i) for i in x]))
            else:
                self.check_region((65, 75, 75, 85),
                                  lambda x: all([isgreen(i) for i in x]))
                self.check_region((100, 115, 110, 125),
                                  lambda x: all([isred(i) for i in x]))

            # The corners that touch should be red and green - that is no other colours but red and green, but at least
            # some red and some green
            self.check_region(
                (65, 115, 75, 125),
                lambda x: all([isredgreen(i) for i in x]) and any(
                    [isred(i) for i in x]) and any([isgreen(i) for i in x]))

            # check that there's blue in this vertex's region
            self.check_region(vert_regions[vert],
                              lambda x: any([isblue(i) for i in x]))

        rdtest.log.success("Rendering of highlighted vertices is as expected")

        self.cfg.highlightVert = rd.MeshDisplay.NoHighlight

        # If we render from the float2 color we shouldn't get any blue
        self.cfg.second.vertexByteOffset = self.cfg.position.vertexByteOffset = inst0.vertexByteOffset
        self.cfg.second.vertexByteOffset += 16
        self.cfg.second.format.compCount = 2

        self.cache_output()

        # If we render from the float2 color we shouldn't get any blue since it's only a two-component value
        self.check_region((85, 70, 85, 125),
                          lambda x: all([isredgreen(i) for i in x]))
        self.check_region((65, 100, 105, 100),
                          lambda x: all([isredgreen(i) for i in x]))
        self.check_region((65, 55, 105, 55), lambda x: x == [])
        self.check_region((65, 125, 105, 125),
                          lambda x: all([isredgreen(i) for i in x]))

        rdtest.log.success(
            "Rendering of float2 color secondary in instance 0 is as expected")

        self.cfg.highlightVert = rd.MeshDisplay.NoHighlight
        inst1: rd.MeshFormat = self.controller.GetPostVSData(
            1, 0, self.cfg.type)

        self.cfg.curInstance = 1
        self.cfg.second.vertexResourceId = self.cfg.position.vertexResourceId = inst1.vertexResourceId
        self.cfg.second.vertexByteOffset = self.cfg.position.vertexByteOffset = inst1.vertexByteOffset
        self.cfg.second.vertexByteOffset += 16
        self.cfg.second.vertexByteOffset += 8
        if pipe.HasAlignedPostVSData(self.cfg.type):
            self.cfg.second.vertexByteOffset += 8

        self.cache_output()

        # The secondary color should be completely yellow
        self.check_region((85, 70, 85, 125),
                          lambda x: all([isyellow(i) for i in x]))
        self.check_region((65, 100, 105, 100),
                          lambda x: all([isyellow(i) for i in x]))
        # this line segment isn't in the first instance
        self.check_region((65, 55, 105, 55),
                          lambda x: all([isyellow(i) for i in x]))
        # this line segment isn't in the second instance
        self.check_region((65, 125, 105, 125), lambda x: x == [])

        rdtest.log.success("Secondary rendering of instance 1 is as expected")

        # If we render from the float2 color we shouldn't get any blue
        self.cfg.second.vertexByteOffset = self.cfg.position.vertexByteOffset = inst1.vertexByteOffset
        self.cfg.second.vertexByteOffset += 16
        self.cfg.second.format.compCount = 2

        self.cache_output()

        # If we render from the float2 color we shouldn't get any blue since it's only a two-component value
        self.check_region((85, 70, 85, 125),
                          lambda x: all([isredgreen(i) for i in x]))
        self.check_region((65, 100, 105, 100),
                          lambda x: all([isredgreen(i) for i in x]))
        self.check_region((65, 55, 105, 55),
                          lambda x: all([isredgreen(i) for i in x]))
        self.check_region((65, 125, 105, 125), lambda x: x == [])

        rdtest.log.success(
            "Rendering of float2 color secondary in instance 1 is as expected")

        self.cfg.solidShadeMode = rd.SolidShade.NoSolid
        self.cfg.showAllInstances = True

        self.cache_output()

        # wireframe for original quad should still be present
        self.check_region((55, 95, 65, 95), lambda x: x != [])
        self.check_region((85, 60, 85, 70), lambda x: x != [])
        self.check_region((105, 100, 115, 100), lambda x: x != [])
        self.check_region((90, 130, 90, 140), lambda x: x != [])
        self.check_region((65, 120, 75, 120), lambda x: x != [])
        self.check_region((105, 70, 110, 70), lambda x: x != [])

        # But now we'll have an additional instance
        self.check_region((75, 55, 85, 55), lambda x: x != [])
        self.check_region((125, 85, 135, 85), lambda x: x != [])
        self.check_region((105, 110, 105, 120), lambda x: x != [])

        self.cfg.showWholePass = True

        self.cache_output()

        # same again
        self.check_region((55, 95, 65, 95), lambda x: x != [])
        self.check_region((85, 60, 85, 70), lambda x: x != [])
        self.check_region((105, 100, 115, 100), lambda x: x != [])
        self.check_region((90, 130, 90, 140), lambda x: x != [])
        self.check_region((65, 120, 75, 120), lambda x: x != [])
        self.check_region((105, 70, 110, 70), lambda x: x != [])
        self.check_region((75, 55, 85, 55), lambda x: x != [])
        self.check_region((125, 85, 135, 85), lambda x: x != [])
        self.check_region((105, 110, 105, 120), lambda x: x != [])

        # But now an extra previous draw
        self.check_region((30, 105, 40, 105), lambda x: x != [])
        self.check_region((50, 80, 50, 90), lambda x: x != [])
        self.check_region((45, 130, 55, 130), lambda x: x != [])
        self.check_region((30, 150, 40, 150), lambda x: x != [])

        rdtest.log.success("Mesh rendering is as expected")

        self.cfg.showWholePass = False
        self.cfg.showAllInstances = False

        # Go back to instance 0. We can ignore cfg.second now
        self.cfg.curInstance = 0
        self.cfg.position.vertexResourceId = inst0.vertexResourceId
        self.cfg.position.vertexByteOffset = inst0.vertexByteOffset

        self.cache_output()

        # Just above top-left, no result
        self.check_vertex(55, 60,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))
        # Just inside top-left, first vertex
        self.check_vertex(65, 70, (0, 0))
        # Outside top-right, inside the second instance, but because we only have one instance showing should return
        # no result
        self.check_vertex(115, 60,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))
        self.check_vertex(80, 60,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))
        # In the first triangle near the top right
        self.check_vertex(105, 70, (1, 0))
        # In the second triangle near the top right
        self.check_vertex(110, 70, (3, 0))
        # In the second triangle near the middle, would be in the second instance
        self.check_vertex(95, 110, (4, 0))
        # In the second triangle near the bottom right
        self.check_vertex(110, 130, (4, 0))

        rdtest.log.success("Instance 0 picking is as expected")

        # if we look at only instance 1, the results should change
        self.cfg.curInstance = 1
        self.cfg.position.vertexResourceId = inst1.vertexResourceId
        self.cfg.position.vertexByteOffset = inst1.vertexByteOffset

        self.cache_output()

        self.check_vertex(55, 60,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))
        self.check_vertex(65, 70,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))
        self.check_vertex(115, 60, (1, 1))
        self.check_vertex(80, 60, (0, 1))
        self.check_vertex(105, 70, (1, 1))
        self.check_vertex(110, 70, (1, 1))
        self.check_vertex(95, 110, (5, 1))
        self.check_vertex(110, 130,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))

        rdtest.log.success("Instance 1 picking is as expected")

        # Now look at both instances together, this goes 'in order' so if there is overlap the first instance wins
        self.cfg.showAllInstances = True

        self.cache_output()

        self.check_vertex(55, 60,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))
        self.check_vertex(65, 70, (0, 0))
        self.check_vertex(115, 60, (1, 1))
        self.check_vertex(80, 60, (0, 1))
        self.check_vertex(105, 70, (1, 0))
        self.check_vertex(110, 70, (3, 0))
        self.check_vertex(95, 110, (4, 0))
        self.check_vertex(110, 130, (4, 0))

        rdtest.log.success("Both instance picking is as expected")

        self.controller.SetFrameEvent(
            self.find_draw("Points").next.eventId, False)

        # Only one instance, just check we can see the points
        self.cfg.curInstance = 0
        self.cfg.position = self.controller.GetPostVSData(0, 0, self.cfg.type)
        self.cfg.position.nearPlane = 1.0
        self.cfg.position.farPlane = 100.0

        self.cache_output()

        # Picking points doesn't have any primitive, it should pick as long as it's close to the point
        self.check_vertex(55, 60, (0, 0))
        self.check_vertex(65, 70, (0, 0))

        self.check_vertex(105, 65, (1, 0))
        self.check_vertex(115, 135, (2, 0))
        self.check_vertex(65, 130, (3, 0))
        self.check_vertex(60, 125, (3, 0))

        rdtest.log.success("Point picking is as expected")

        self.controller.SetFrameEvent(
            self.find_draw("Stride 0").next.eventId, False)

        self.cfg.position = self.controller.GetPostVSData(0, 0, self.cfg.type)
        self.cfg.position.nearPlane = 1.0
        self.cfg.position.farPlane = 100.0

        self.cache_output()

        # Stride of 0 is unusual but valid, ensure vertex picking still works
        self.check_vertex(55, 60, (0, 0))
        self.check_vertex(65, 70, (0, 0))

        self.check_vertex(105, 65,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))
        self.check_vertex(115, 135,
                          (rd.ReplayOutput.NoResult, rd.ReplayOutput.NoResult))
Exemple #2
0
    def check_test(self, fmt_name: str, name: str, test_mode: int):
        pipe: rd.PipeState = self.controller.GetPipelineState()

        image_view = (test_mode != Texture_Zoo.TEST_CAPTURE)

        if image_view:
            bound_res: rd.BoundResource = pipe.GetOutputTargets()[0]
        else:
            bound_res: rd.BoundResource = pipe.GetReadOnlyResources(
                rd.ShaderStage.Pixel)[0].resources[0]

        texs = self.controller.GetTextures()
        for t in texs:
            self.textures[t.resourceId] = t

        tex_id: rd.ResourceId = bound_res.resourceId
        tex: rd.TextureDescription = self.textures[tex_id]

        comp_type: rd.CompType = tex.format.compType
        if bound_res.typeCast != rd.CompType.Typeless:
            comp_type = bound_res.typeCast

        # When not running proxied, save non-typecasted textures to disk
        if not image_view and not self.proxied and (
                tex.format.compType == comp_type
                or tex.format.type == rd.ResourceFormatType.D24S8
                or tex.format.type == rd.ResourceFormatType.D32S8):
            save_data = rd.TextureSave()
            save_data.resourceId = tex_id
            save_data.destType = rd.FileType.DDS
            save_data.sample.mapToArray = True

            self.textures[self.filename] = tex

            path = rdtest.get_tmp_path(self.filename + '.dds')

            success: bool = self.controller.SaveTexture(save_data, path)

            if not success:
                if self.d3d_mode:
                    raise rdtest.TestFailureException(
                        "Couldn't save DDS to {} on D3D.".format(
                            self.filename))

                try:
                    os.remove(path)
                except Exception:
                    pass

            save_data.destType = rd.FileType.PNG
            save_data.slice.sliceIndex = 0
            save_data.sample.sampleIndex = 0
            path = path.replace('.dds', '.png')

            if comp_type == rd.CompType.UInt:
                save_data.comp.blackPoint = 0.0
                save_data.comp.whitePoint = 255.0
            elif comp_type == rd.CompType.SInt:
                save_data.comp.blackPoint = -255.0
                save_data.comp.whitePoint = 0.0
            elif comp_type == rd.CompType.SNorm:
                save_data.comp.blackPoint = -1.0
                save_data.comp.whitePoint = 0.0

            success: bool = self.controller.SaveTexture(save_data, path)

            if not success:
                try:
                    os.remove(path)
                except Exception:
                    pass

        value0 = []

        comp_count = tex.format.compCount

        # When viewing PNGs only compare the components that the original texture had
        if test_mode == Texture_Zoo.TEST_PNG:
            comp_count = self.textures[self.filename]
            tex.msSamp = 0
            tex.arraysize = 1
            tex.depth = 1
            self.fake_msaa = 'MSAA' in name
        elif test_mode == Texture_Zoo.TEST_DDS:
            tex.arraysize = self.textures[self.filename].arraysize
            tex.msSamp = self.textures[self.filename].msSamp
            self.fake_msaa = 'MSAA' in name

        # HACK: We don't properly support BGRX, so just drop the alpha channel. We can't set this to compCount = 3
        # internally because that's a 24-bit format with no padding...
        if 'B8G8R8X8' in fmt_name:
            comp_count = 3

        # Completely ignore the alpha for BC1, our encoder doesn't pay attention to it
        if tex.format.type == rd.ResourceFormatType.BC1:
            comp_count = 3

        # Calculate format-appropriate epsilon
        eps_significand = 1.0
        # Account for the sRGB curve by more generous epsilon

        if comp_type == rd.CompType.UNormSRGB:
            eps_significand = 2.5
        # Similarly SNorm essentially loses a bit of accuracy due to us only using negative values
        elif comp_type == rd.CompType.SNorm:
            eps_significand = 2.0

        if tex.format.type == rd.ResourceFormatType.R4G4B4A4 or tex.format.type == rd.ResourceFormatType.R4G4:
            eps = (eps_significand / 15.0)
        elif rd.ResourceFormatType.BC1 <= tex.format.type <= rd.ResourceFormatType.BC3:
            eps = (eps_significand / 15.0)  # 4-bit precision in some channels
        elif tex.format.type == rd.ResourceFormatType.R5G5B5A1 or tex.format.type == rd.ResourceFormatType.R5G6B5:
            eps = (eps_significand / 31.0)
        elif tex.format.type == rd.ResourceFormatType.R11G11B10:
            eps = (eps_significand / 31.0)  # 5-bit mantissa in blue
        elif tex.format.type == rd.ResourceFormatType.R9G9B9E5:
            eps = (
                eps_significand / 63.0
            )  # we have 9 bits of data, but might lose 2-3 due to shared exponent
        elif tex.format.type == rd.ResourceFormatType.BC6 and tex.format.compType == rd.CompType.SNorm:
            eps = (eps_significand / 63.0
                   )  # Lose a bit worth of precision for the signed version
        elif rd.ResourceFormatType.BC4 <= tex.format.type <= rd.ResourceFormatType.BC7:
            eps = (eps_significand / 127.0)
        elif tex.format.compByteWidth == 1:
            eps = (eps_significand / 255.0)
        elif comp_type == rd.CompType.Depth and tex.format.compCount == 2:
            eps = (eps_significand / 255.0)  # stencil is only 8-bit
        elif tex.format.type == rd.ResourceFormatType.A8:
            eps = (eps_significand / 255.0)
        elif tex.format.type == rd.ResourceFormatType.R10G10B10A2:
            eps = (eps_significand / 1023.0)
        else:
            # half-floats have 11-bit mantissa. This epsilon is tight enough that we can be sure
            # any remaining errors are implementation inaccuracy and not our bug
            eps = (eps_significand / 2047.0)

        for mp in range(tex.mips):
            for sl in range(max(tex.arraysize, max(1, tex.depth >> mp))):
                z = 0
                if tex.depth > 1:
                    z = sl

                for sm in range(tex.msSamp):
                    cur_sub = self.sub(mp, sl, sm)

                    tex_display = rd.TextureDisplay()
                    tex_display.resourceId = tex_id
                    tex_display.subresource = cur_sub
                    tex_display.flipY = self.opengl_mode
                    tex_display.typeCast = comp_type
                    tex_display.alpha = False
                    tex_display.scale = 1.0 / float(1 << mp)
                    tex_display.backgroundColor = rd.FloatVector(
                        0.0, 0.0, 0.0, 1.0)

                    if comp_type == rd.CompType.UInt:
                        tex_display.rangeMin = 0.0
                        tex_display.rangeMax = 255.0
                    elif comp_type == rd.CompType.SInt:
                        tex_display.rangeMin = -255.0
                        tex_display.rangeMax = 0.0
                    elif comp_type == rd.CompType.SNorm:
                        tex_display.rangeMin = -1.0
                        tex_display.rangeMax = 0.0

                    self.out.SetTextureDisplay(tex_display)

                    self.out.Display()

                    pixels: bytes = self.out.ReadbackOutputTexture()
                    dim = self.out.GetDimensions()

                    stencilpixels = None

                    # Grab stencil separately
                    if tex.format.type == rd.ResourceFormatType.D16S8 or tex.format.type == rd.ResourceFormatType.D24S8 or tex.format.type == rd.ResourceFormatType.D32S8:
                        tex_display.red = False
                        tex_display.green = True
                        tex_display.blue = False
                        tex_display.alpha = False

                        self.out.SetTextureDisplay(tex_display)
                        self.out.Display()

                        stencilpixels: bytes = self.out.ReadbackOutputTexture()

                    # Grab alpha if needed (since the readback output is RGB only)
                    if comp_count == 4 or tex.format.type == rd.ResourceFormatType.A8:
                        tex_display.red = False
                        tex_display.green = False
                        tex_display.blue = False
                        tex_display.alpha = True

                        self.out.SetTextureDisplay(tex_display)
                        self.out.Display()

                        alphapixels: bytes = self.out.ReadbackOutputTexture()

                    all_good = True

                    for x in range(max(1, tex.width >> mp)):
                        if not all_good:
                            break
                        for y in range(max(1, tex.height >> mp)):
                            expected = self.get_expected_value(
                                comp_count, comp_type, cur_sub, test_mode, tex,
                                x, y, z)

                            # for this test to work the expected values have to be within the range we selected for
                            # display above
                            for i in expected:
                                if i < tex_display.rangeMin or tex_display.rangeMax < i:
                                    raise rdtest.TestFailureException(
                                        "expected value {} is outside of texture display range! {} - {}"
                                        .format(i, tex_display.rangeMin,
                                                tex_display.rangeMax))

                            # convert the expected values to range-adapted values
                            for i in range(len(expected)):
                                expected[i] = (expected[i] -
                                               tex_display.rangeMin) / (
                                                   tex_display.rangeMax -
                                                   tex_display.rangeMin)

                            # get the bytes from the displayed pixel
                            offs = y * dim[0] * 3 + x * 3
                            displayed = [
                                int(a) for a in pixels[offs:offs + comp_count]
                            ]
                            if comp_count == 4:
                                del displayed[3]
                                displayed.append(int(alphapixels[offs]))
                            if stencilpixels is not None:
                                del displayed[1:]
                                displayed.append(int(stencilpixels[offs]))
                            if tex.format.type == rd.ResourceFormatType.A8:
                                displayed = [int(alphapixels[offs])]

                            # normalise the displayed values
                            for i in range(len(displayed)):
                                displayed[i] = float(displayed[i]) / 255.0

                            # For SRGB textures match linear picked values. We do this for alpha too since it's rendered
                            # via RGB
                            if comp_type == rd.CompType.UNormSRGB:
                                displayed[0:4] = [
                                    srgb2linear(x) for x in displayed[0:4]
                                ]

                            # alpha channel in 10:10:10:2 has extremely low precision, and the ULP requirements mean
                            # we basically can't trust anything between 0 and 1 on float formats. Just round in that
                            # case as it still lets us differentiate between alpha 0.0-0.5 and 0.5-1.0
                            if tex.format.type == rd.ResourceFormatType.R10G10B10A2 and comp_type != rd.CompType.UInt:
                                displayed[3] = round(displayed[3]) * 1.0

                            # Handle 1-bit alpha
                            if tex.format.type == rd.ResourceFormatType.R5G5B5A1:
                                displayed[
                                    3] = 1.0 if displayed[3] >= 0.5 else 0.0

                            # Need an additional 1/255 epsilon to account for us going via a 8-bit backbuffer for display
                            if not rdtest.value_compare(
                                    displayed, expected, 1.0 / 255.0 + eps):
                                #rdtest.log.print(
                                #    "Quick-checking ({},{}) of slice {}, mip {}, sample {} of {} {} got {}. Expected {}.".format(
                                #        x, y, sl, mp, sm, name, fmt_name, displayed, expected) +
                                #    "Falling back to pixel picking tests.")
                                # Currently this seems to fail in some proxy scenarios with sRGB, but since it's not a
                                # real error we just silently swallow it
                                all_good = False
                                break

                    if all_good:
                        continue

                    for x in range(max(1, tex.width >> mp)):
                        for y in range(max(1, tex.height >> mp)):
                            expected = self.get_expected_value(
                                comp_count, comp_type, cur_sub, test_mode, tex,
                                x, y, z)
                            picked = self.get_picked_pixel_value(
                                comp_count, comp_type, cur_sub, tex, tex_id, x,
                                y)

                            if mp == 0 and sl == 0 and sm == 0 and x == 0 and y == 0:
                                value0 = picked

                            if not rdtest.value_compare(picked, expected, eps):
                                raise rdtest.TestFailureException(
                                    "At ({},{}) of slice {}, mip {}, sample {} of {} {} got {}. Expected {}"
                                    .format(x, y, sl, mp, sm, name, fmt_name,
                                            picked, expected))

        if not image_view:
            output_tex = pipe.GetOutputTargets()[0].resourceId

            # in the test captures pick the output texture, it should be identical to the
            # (0,0) pixel in slice 0, mip 0, sample 0
            view: rd.Viewport = pipe.GetViewport(0)

            val: rd.PixelValue = self.pick(
                pipe.GetOutputTargets()[0].resourceId,
                int(view.x + view.width / 2), int(view.y + view.height / 2),
                rd.Subresource(), rd.CompType.Typeless)

            picked = list(val.floatValue)

            # A8 picked values come out in alpha, but we want to compare against the single channel
            if tex.format.type == rd.ResourceFormatType.A8:
                picked[0] = picked[3]

            # Clamp to number of components in the texture
            picked = picked[0:comp_count]

            # If we didn't get a value0 (because we did all texture render compares) then fetch it here
            if len(value0) == 0:
                value0 = self.get_picked_pixel_value(comp_count, comp_type,
                                                     rd.Subresource(), tex,
                                                     tex_id, 0, 0)

            # Up-convert any non-float expected values to floats
            value0 = [float(x) for x in value0]

            # For depth/stencil images, one of either depth or stencil should match
            if comp_type == rd.CompType.Depth and len(value0) == 2:
                if picked[0] == 0.0:
                    value0[0] = 0.0
                    # normalise stencil value if it isn't already
                    if picked[1] > 1.0:
                        picked[1] /= 255.0
                elif picked[0] > 1.0:
                    # un-normalised stencil being rendered in red, match against our stencil expectation
                    picked[0] /= 255.0
                    value0[0] = value0[1]
                    value0[1] = 0.0
                else:
                    if picked[1] == 0.0:
                        value0[1] = 0.0
                    if picked[1] > 1.0:
                        picked[1] /= 255.0

            if not rdtest.value_compare(picked, value0, eps):
                raise rdtest.TestFailureException(
                    "In {} {} Top-left pixel as rendered is {}. Expected {}".
                    format(name, fmt_name, picked, value0))