зеркало из https://github.com/AvaloniaUI/angle.git
Vulkan: add depth-only or stencil-only tests
These tests make sure that a depth- or stencil-only format that is emulated with a depth/stencil one does not affect clear/draw in such a way that it would expose the hidden aspect. By nature of the emulation, it's not trivial to read back the hidden aspect. This test simply makes sure the hidden aspect doesn't affect rendering, but is not a definitive test of correctness. Bug: angleproject:2815 Change-Id: I158937faa019487f6fa08154406c152753a1934b Reviewed-on: https://chromium-review.googlesource.com/c/1314188 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
This commit is contained in:
Shahbaz Youssefi
Commit Bot
Родитель
5d2dfa46c0
Коммит
50bf042939
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@ -25,6 +25,7 @@ angle_end2end_tests_sources = [
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"gl_tests/DebugMarkerTest.cpp",
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"gl_tests/DebugTest.cpp",
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"gl_tests/DepthStencilFormatsTest.cpp",
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"gl_tests/DepthStencilTest.cpp",
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"gl_tests/DifferentStencilMasksTest.cpp",
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"gl_tests/DiscardFramebufferEXTTest.cpp",
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"gl_tests/DrawBuffersTest.cpp",
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@ -0,0 +1,265 @@
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//
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// Copyright 2018 The ANGLE Project Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// DepthStencilTest:
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// Tests covering depth- or stencil-only rendering to make sure the other non-existing aspect is
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// not affecting the results (since the format may be emulated with one that has both aspects).
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//
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#include "test_utils/ANGLETest.h"
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#include "platform/FeaturesVk.h"
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#include "test_utils/gl_raii.h"
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using namespace angle;
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namespace
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{
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class DepthStencilTest : public ANGLETest
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{
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protected:
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DepthStencilTest()
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{
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setWindowWidth(128);
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setWindowHeight(128);
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setConfigRedBits(8);
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setConfigGreenBits(8);
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setConfigBlueBits(8);
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setConfigAlphaBits(8);
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setConfigDepthBits(24);
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setConfigStencilBits(8);
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}
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void SetUp() override
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{
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ANGLETest::SetUp();
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glBindTexture(GL_TEXTURE_2D, mColorTexture);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, getWindowWidth(), getWindowHeight(), 0, GL_RGBA,
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GL_UNSIGNED_BYTE, nullptr);
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// Setup Color/Stencil FBO with a stencil format that's emulated with packed depth/stencil.
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glBindFramebuffer(GL_FRAMEBUFFER, mColorStencilFBO);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mColorTexture,
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0);
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glBindRenderbuffer(GL_RENDERBUFFER, mStencilTexture);
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glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, getWindowWidth(),
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getWindowHeight());
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER,
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mStencilTexture);
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ASSERT_GL_NO_ERROR();
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// Note: GL_DEPTH_COMPONENT24 is not allowed in GLES2.
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if (getClientMajorVersion() >= 3)
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{
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// Setup Color/Depth FBO with a depth format that's emulated with packed depth/stencil.
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glBindFramebuffer(GL_FRAMEBUFFER, mColorDepthFBO);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
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mColorTexture, 0);
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glBindRenderbuffer(GL_RENDERBUFFER, mDepthTexture);
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glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, getWindowWidth(),
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getWindowHeight());
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER,
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mDepthTexture);
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}
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ASSERT_GL_NO_ERROR();
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}
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void TearDown() override { ANGLETest::TearDown(); }
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void bindColorStencilFBO()
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{
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glBindFramebuffer(GL_FRAMEBUFFER, mColorStencilFBO);
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mHasDepth = false;
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}
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void bindColorDepthFBO()
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{
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glBindFramebuffer(GL_FRAMEBUFFER, mColorDepthFBO);
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mHasStencil = false;
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}
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// Override a feature to force emulation of stencil-only and depth-only formats with a packed
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// depth/stencil format
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void overrideFeaturesVk(FeaturesVk *featuresVk) override
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{
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featuresVk->forceFallbackFormat = true;
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}
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void prepareSingleEmulatedWithPacked();
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void ensureColor(GLColor color);
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void ensureDepthUnaffected();
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void ensureStencilUnaffected();
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private:
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GLFramebuffer mColorStencilFBO;
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GLFramebuffer mColorDepthFBO;
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GLTexture mColorTexture;
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GLRenderbuffer mDepthTexture;
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GLRenderbuffer mStencilTexture;
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bool mHasDepth = true;
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bool mHasStencil = true;
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};
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void DepthStencilTest::ensureColor(GLColor color)
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{
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const int width = getWindowWidth();
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const int height = getWindowHeight();
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std::vector<GLColor> pixelData(width * height);
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glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixelData.data());
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for (int i = 0; i < width * height; i += 16)
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{
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GLColor actualColor = pixelData[i];
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EXPECT_NEAR(color.R, actualColor.R, 1);
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EXPECT_NEAR(color.G, actualColor.G, 1);
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EXPECT_NEAR(color.B, actualColor.B, 1);
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EXPECT_NEAR(color.A, actualColor.A, 1);
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if (i % width == 0)
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i += 16 * width;
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}
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}
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void DepthStencilTest::ensureDepthUnaffected()
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{
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ANGLE_GL_PROGRAM(depthTestProgram, essl1_shaders::vs::Passthrough(), essl1_shaders::fs::Blue());
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glEnable(GL_DEPTH_TEST);
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glDepthFunc(GL_EQUAL);
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drawQuad(depthTestProgram, essl1_shaders::PositionAttrib(), 0.123f);
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glDisable(GL_DEPTH_TEST);
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ASSERT_GL_NO_ERROR();
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// Since depth shouldn't exist, the drawQuad above should succeed in turning the whole image
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// blue.
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ensureColor(GLColor::blue);
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}
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void DepthStencilTest::ensureStencilUnaffected()
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{
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ANGLE_GL_PROGRAM(stencilTestProgram, essl1_shaders::vs::Passthrough(),
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essl1_shaders::fs::Green());
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glEnable(GL_STENCIL_TEST);
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glStencilFunc(GL_EQUAL, 0x1B, 0xFF);
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drawQuad(stencilTestProgram, essl1_shaders::PositionAttrib(), 0.0f);
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glDisable(GL_STENCIL_TEST);
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ASSERT_GL_NO_ERROR();
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// Since stencil shouldn't exist, the drawQuad above should succeed in turning the whole image
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// green.
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ensureColor(GLColor::green);
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}
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void DepthStencilTest::prepareSingleEmulatedWithPacked()
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{
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const int w = getWindowWidth();
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const int h = getWindowHeight();
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const int whalf = w >> 1;
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const int hhalf = h >> 1;
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// Clear to a random color, 0.75 depth and 0x36 stencil
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Vector4 color1(0.1f, 0.2f, 0.3f, 0.4f);
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GLColor color1RGB(color1);
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glClearColor(color1[0], color1[1], color1[2], color1[3]);
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glClearDepthf(0.75f);
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glClearStencil(0x36);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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ASSERT_GL_NO_ERROR();
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// Verify color was cleared correctly.
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EXPECT_PIXEL_COLOR_NEAR(0, 0, color1RGB, 1);
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// Use masked color to clear two channels of the image to a second color, 0.25 depth and 0x59
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// stencil.
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Vector4 color2(0.2f, 0.4f, 0.6f, 0.8f);
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glClearColor(color2[0], color2[1], color2[2], color2[3]);
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glClearDepthf(0.25f);
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glClearStencil(0x59);
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glColorMask(GL_TRUE, GL_FALSE, GL_TRUE, GL_FALSE);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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ASSERT_GL_NO_ERROR();
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GLColor color2RGB(Vector4(color2[0], color1[1], color2[2], color1[3]));
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EXPECT_PIXEL_COLOR_NEAR(whalf, hhalf, color2RGB, 1);
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EXPECT_PIXEL_COLOR_NEAR(0, 0, color2RGB, 1);
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EXPECT_PIXEL_COLOR_NEAR(w - 1, 0, color2RGB, 1);
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EXPECT_PIXEL_COLOR_NEAR(0, h - 1, color2RGB, 1);
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EXPECT_PIXEL_COLOR_NEAR(w - 1, h - 1, color2RGB, 1);
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// Use scissor to clear the center to a third color, 0.5 depth and 0xA9 stencil.
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glEnable(GL_SCISSOR_TEST);
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glScissor(whalf / 2, hhalf / 2, whalf, hhalf);
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Vector4 color3(0.3f, 0.5f, 0.7f, 0.9f);
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GLColor color3RGB(color3);
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glClearColor(color3[0], color3[1], color3[2], color3[3]);
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glClearDepthf(0.5f);
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glClearStencil(0xA9);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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glDisable(GL_SCISSOR_TEST);
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ASSERT_GL_NO_ERROR();
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EXPECT_PIXEL_COLOR_NEAR(whalf, hhalf, color3RGB, 1);
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EXPECT_PIXEL_COLOR_NEAR(0, 0, color2RGB, 1);
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EXPECT_PIXEL_COLOR_NEAR(w - 1, 0, color2RGB, 1);
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EXPECT_PIXEL_COLOR_NEAR(0, h - 1, color2RGB, 1);
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EXPECT_PIXEL_COLOR_NEAR(w - 1, h - 1, color2RGB, 1);
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// Use scissor to draw to the right half of the image with a fourth color, 0.6 depth and 0x84
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// stencil.
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glEnable(GL_SCISSOR_TEST);
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glScissor(whalf, 0, whalf, h);
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ANGLE_GL_PROGRAM(redProgram, essl1_shaders::vs::Simple(), essl1_shaders::fs::Red());
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glEnable(GL_STENCIL_TEST);
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glStencilFunc(GL_ALWAYS, 0x84, 0xFF);
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glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
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glStencilMask(0xFF);
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drawQuad(redProgram, essl1_shaders::PositionAttrib(), 0.2f);
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glDisable(GL_STENCIL_TEST);
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glDisable(GL_SCISSOR_TEST);
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}
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// Tests that clearing or rendering into a depth-only format doesn't affect stencil.
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TEST_P(DepthStencilTest, DepthOnlyEmulatedWithPacked)
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{
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ANGLE_SKIP_TEST_IF(getClientMajorVersion() < 3);
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bindColorDepthFBO();
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prepareSingleEmulatedWithPacked();
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ensureStencilUnaffected();
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}
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// Tests that clearing or rendering into a stencil-only format doesn't affect depth.
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TEST_P(DepthStencilTest, StencilOnlyEmulatedWithPacked)
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{
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bindColorStencilFBO();
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prepareSingleEmulatedWithPacked();
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ensureDepthUnaffected();
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}
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ANGLE_INSTANTIATE_TEST(DepthStencilTest,
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ES2_D3D11(),
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ES3_D3D11(),
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ES2_OPENGL(),
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ES3_OPENGL(),
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ES2_OPENGLES(),
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ES3_OPENGLES(),
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ES2_VULKAN());
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} // anonymous namespace
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