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Hash : fe3a9ffb
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Date : 2021-03-17T18:05:40
Support linking PPOs without attached Shaders The application "Command & Conquer: Rivals" uses the following pattern: // Create and link VS, save binary data glCreateProgram() glAttachShader() glLinkProgram() glGetProgramBinary() // Create and link FS, save binary data glCreateProgram() glAttachShader() glLinkProgram() glGetProgramBinary() ... // Create VS, load binary data glCreateProgram() glProgramBinary() // Create FS, load binary data glCreateProgram() glProgramBinary() ... glUseProgramStages(GL_VERTEX_SHADER_BIT) glUseProgramStages(GL_FRAGMENT_SHADER_BIT) glBindProgramPipeline() Later, when issuing the draw command that uses the PPO, the PPO must be linked with the Programs that were loaded via binary data. Those Programs don't have any Shaders attached, just linked. This CL adds support for linking Programs without attached Shaders. Bug: b/182409935 Test: ProgramPipelineTest31.ProgramBinary Change-Id: Ic5a4776e1374322665f45fbbcbf955838d093d02 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2770685 Commit-Queue: Tim Van Patten <timvp@google.com> Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
