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import copy
import rdtest
import renderdoc as rd
from typing import Tuple
class VK_Shader_Editing(rdtest.TestCase):
demos_test_name = 'VK_Shader_Editing'
def check_capture(self):
eid = self.find_draw("Draw 1").next.eventId
self.controller.SetFrameEvent(eid, False)
pipe: rd.PipeState = self.controller.GetPipelineState()
fsrefl1: rd.ShaderReflection = pipe.GetShaderReflection(rd.ShaderStage.Fragment)
eid = self.find_draw("Draw 2").next.eventId
self.controller.SetFrameEvent(eid, False)
pipe: rd.PipeState = self.controller.GetPipelineState()
fsrefl2: rd.ShaderReflection = pipe.GetShaderReflection(rd.ShaderStage.Fragment)
vsrefl: rd.ShaderReflection = pipe.GetShaderReflection(rd.ShaderStage.Vertex)
tex: rd.ResourceId = pipe.GetOutputTargets()[0].resourceId
# Both triangles should be green
self.check_pixel_value(tex, 0.25, 0.5, [0.0, 1.0, 0.0, 1.0])
self.check_pixel_value(tex, 0.75, 0.5, [0.0, 1.0, 0.0, 1.0])
rdtest.log.success("Values are as expected initially")
source: str = fsrefl1.debugInfo.files[0].contents.replace('#if 1', '#if 0')
newShader: Tuple[rd.ResourceId, str] = self.controller.BuildTargetShader(fsrefl1.entryPoint,
rd.ShaderEncoding.GLSL,
bytes(source, 'UTF-8'),
rd.ShaderCompileFlags(),
rd.ShaderStage.Fragment)
if len(newShader[1]) != 0:
raise rdtest.TestFailureException("Failed to compile edited shader: {}".format(newShader[1]))
FS1 = newShader[0]
source: str = fsrefl2.debugInfo.files[0].contents.replace('#if 1', '#if 0')
newShader: Tuple[rd.ResourceId, str] = self.controller.BuildTargetShader(fsrefl2.entryPoint,
rd.ShaderEncoding.GLSL,
bytes(source, 'UTF-8'),
rd.ShaderCompileFlags(),
rd.ShaderStage.Fragment)
if len(newShader[1]) != 0:
raise rdtest.TestFailureException("Failed to compile edited shader: {}".format(newShader[1]))
FS2 = newShader[0]
source: str = vsrefl.debugInfo.files[0].contents.replace('Position.xyz', 'Position.xyz+vec3(1.0)')
newShader: Tuple[rd.ResourceId, str] = self.controller.BuildTargetShader(vsrefl.entryPoint,
rd.ShaderEncoding.GLSL,
bytes(source, 'UTF-8'),
rd.ShaderCompileFlags(),
rd.ShaderStage.Vertex)
if len(newShader[1]) != 0:
raise rdtest.TestFailureException("Failed to compile edited shader: {}".format(newShader[1]))
offsetVS = newShader[0]
source: bytes = vsrefl.rawBytes
self.check(vsrefl.entryPoint == "main")
# we search-replace in the SPIR-V expecting that 'main' won't appear anywhere other than in the OpEntryPoint
patched_entry_source = source.replace(b'main', b't_st')
newShader: Tuple[rd.ResourceId, str] = self.controller.BuildTargetShader('t_st',
vsrefl.encoding, patched_entry_source,
rd.ShaderCompileFlags(),
rd.ShaderStage.Vertex)
if len(newShader[1]) != 0:
raise rdtest.TestFailureException("Failed to compile edited shader: {}".format(newShader[1]))
nochangeVS = newShader[0]
# Edit both fragment shaders
self.controller.ReplaceResource(fsrefl1.resourceId, FS1)
self.controller.ReplaceResource(fsrefl2.resourceId, FS2)
# Refresh the replay if it didn't happen already
self.controller.SetFrameEvent(eid, True)
# Triangles have green and blue channel
self.check_pixel_value(tex, 0.25, 0.5, [0.0, 1.0, 1.0, 1.0])
self.check_pixel_value(tex, 0.75, 0.5, [0.0, 1.0, 1.0, 1.0])
rdtest.log.success("Values are as expected after fragment editing")
# Now "edit" the VS but don't change it. We should still get the same values
self.controller.ReplaceResource(vsrefl.resourceId, nochangeVS)
self.controller.SetFrameEvent(eid, True)
# Triangles have green and blue channel
self.check_pixel_value(tex, 0.25, 0.5, [0.0, 1.0, 1.0, 1.0])
self.check_pixel_value(tex, 0.75, 0.5, [0.0, 1.0, 1.0, 1.0])
rdtest.log.success("Values are as expected after no-op vertex editing")
# Change the VS to one that has offset the triangles off-centre
self.controller.ReplaceResource(vsrefl.resourceId, offsetVS)
self.controller.SetFrameEvent(eid, True)
# Original sample positions are now the clear color
self.check_pixel_value(tex, 0.25, 0.5, [0.2, 0.2, 0.2, 1.0])
self.check_pixel_value(tex, 0.75, 0.5, [0.2, 0.2, 0.2, 1.0])
# Triangles have green and blue channel
self.check_pixel_value(tex, 0.45, 0.95, [0.0, 1.0, 1.0, 1.0])
self.check_pixel_value(tex, 0.95, 0.95, [0.0, 1.0, 1.0, 1.0])
rdtest.log.success("Values are as expected after offset vertex editing")
# Now undo the first FS edit
self.controller.RemoveReplacement(fsrefl1.resourceId)
self.controller.SetFrameEvent(eid, True)
# Original sample positions are still the clear color
self.check_pixel_value(tex, 0.25, 0.5, [0.2, 0.2, 0.2, 1.0])
self.check_pixel_value(tex, 0.75, 0.5, [0.2, 0.2, 0.2, 1.0])
# The right triangle is the edited colour, the other two have reverted to green channel only
self.check_pixel_value(tex, 0.45, 0.95, [0.0, 1.0, 0.0, 1.0])
self.check_pixel_value(tex, 0.95, 0.95, [0.0, 1.0, 1.0, 1.0])
rdtest.log.success("Values are as expected after removing first fragment edit")
# Now undo the first VS edit
self.controller.RemoveReplacement(vsrefl.resourceId)
self.controller.SetFrameEvent(eid, True)
# The right triangle is the edited colour, but they are back in the original positions
self.check_pixel_value(tex, 0.25, 0.5, [0.0, 1.0, 0.0, 1.0])
self.check_pixel_value(tex, 0.75, 0.5, [0.0, 1.0, 1.0, 1.0])
rdtest.log.success("Values are as expected after removing vertex edit")
# finally undo the second FS edit
self.controller.RemoveReplacement(fsrefl2.resourceId)
self.controller.SetFrameEvent(eid, True)
# We should be back to where we started
self.check_pixel_value(tex, 0.25, 0.5, [0.0, 1.0, 0.0, 1.0])
self.check_pixel_value(tex, 0.75, 0.5, [0.0, 1.0, 0.0, 1.0])
rdtest.log.success("Values are as expected after removing all edits")
self.controller.FreeTargetResource(nochangeVS)
self.controller.FreeTargetResource(offsetVS)
self.controller.FreeTargetResource(FS1)
self.controller.FreeTargetResource(FS2)
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