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Add stencil-only clear bug workaround back but for all devices.

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TBR=robertphillips@google.com

Review URL: https://codereview.chromium.org/1010253002
This commit is contained in:
bsalomon 2015-03-17 12:06:19 -07:00 committed by Commit bot
parent eec84e324e
commit 9d2049db6e
1 changed files with 15 additions and 0 deletions
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15
src/gpu/gl/GrGLGpu.cpp
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@ -1203,8 +1203,23 @@ bool GrGLGpu::createStencilBufferForRenderTarget(GrRenderTarget* rt, int width,
} }
GL_CALL(ClearStencil(0)); GL_CALL(ClearStencil(0));
// Many GL implementations seem to have trouble with clearing an FBO with only
// a stencil buffer.
GrGLuint tempRB;
GL_CALL(GenRenderbuffers(1, &tempRB));
GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, tempRB));
GL_CALL(RenderbufferStorage(GR_GL_RENDERBUFFER, GR_GL_RGBA8, width, height));
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_RENDERBUFFER, tempRB));
GL_CALL(Clear(GR_GL_STENCIL_BUFFER_BIT)); GL_CALL(Clear(GR_GL_STENCIL_BUFFER_BIT));
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_RENDERBUFFER, 0));
GL_CALL(DeleteRenderbuffers(1, &tempRB));
// Unbind the SB from the FBO so that we don't keep it alive. // Unbind the SB from the FBO so that we don't keep it alive.
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT, GR_GL_STENCIL_ATTACHMENT,