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// Copyright 2018 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <cmath>
#include <limits>
#include "dawn/tests/unittests/validation/ValidationTest.h"
#include "dawn/utils/WGPUHelpers.h"
namespace dawn {
namespace {
class SetViewportTest : public ValidationTest {
protected:
void TestViewportCall(bool success,
float x,
float y,
float width,
float height,
float minDepth,
float maxDepth) {
utils::BasicRenderPass rp = utils::CreateBasicRenderPass(device, kWidth, kHeight);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&rp.renderPassInfo);
pass.SetViewport(x, y, width, height, minDepth, maxDepth);
pass.End();
if (success) {
encoder.Finish();
} else {
ASSERT_DEVICE_ERROR(encoder.Finish());
}
}
static constexpr uint32_t kWidth = 5;
static constexpr uint32_t kHeight = 3;
};
// Test to check basic use of SetViewport
TEST_F(SetViewportTest, Success) {
TestViewportCall(true, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0);
}
// Test to check that NaN in viewport parameters is not allowed
TEST_F(SetViewportTest, ViewportParameterNaN) {
TestViewportCall(false, NAN, 0.0, 1.0, 1.0, 0.0, 1.0);
TestViewportCall(false, 0.0, NAN, 1.0, 1.0, 0.0, 1.0);
TestViewportCall(false, 0.0, 0.0, NAN, 1.0, 0.0, 1.0);
TestViewportCall(false, 0.0, 0.0, 1.0, NAN, 0.0, 1.0);
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, NAN, 1.0);
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, 0.0, NAN);
}
// Test to check that an empty viewport is allowed.
TEST_F(SetViewportTest, EmptyViewport) {
// Width of viewport is zero.
TestViewportCall(true, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0);
// Height of viewport is zero.
TestViewportCall(true, 0.0, 0.0, 1.0, 0.0, 0.0, 1.0);
// Both width and height of viewport are zero.
TestViewportCall(true, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0);
}
// Test to check that viewport larger than the framebuffer is disallowed
TEST_F(SetViewportTest, ViewportLargerThanFramebuffer) {
// Control case: width and height are set to the render target size.
TestViewportCall(true, 0.0, 0.0, kWidth, kHeight, 0.0, 1.0);
// Width is larger than the rendertarget's width
TestViewportCall(false, 0.0, 0.0, kWidth + 1.0, kHeight, 0.0, 1.0);
TestViewportCall(false, 0.0, 0.0, nextafter(float{kWidth}, 1000.0f), kHeight, 0.0, 1.0);
// Height is larger than the rendertarget's height
TestViewportCall(false, 0.0, 0.0, kWidth, kHeight + 1.0, 0.0, 1.0);
TestViewportCall(false, 0.0, 0.0, kWidth, nextafter(float{kHeight}, 1000.0f), 0.0, 1.0);
// x + width is larger than the rendertarget's width
TestViewportCall(false, 2.0, 0.0, kWidth - 1.0, kHeight, 0.0, 1.0);
TestViewportCall(false, 1.0, 0.0, nextafter(float{kWidth - 1.0}, 1000.0f), kHeight, 0.0, 1.0);
// Height is larger than the rendertarget's height
TestViewportCall(false, 0.0, 2.0, kWidth, kHeight - 1.0, 0.0, 1.0);
TestViewportCall(false, 0.0, 1.0, kWidth, nextafter(float{kHeight - 1.0}, 1000.0f), 0.0, 1.0);
}
// Test to check that negative x in viewport is disallowed
TEST_F(SetViewportTest, NegativeXYWidthHeight) {
// Control case: everything set to 0 is allowed.
TestViewportCall(true, +0.0, +0.0, +0.0, +0.0, 0.0, 1.0);
TestViewportCall(true, -0.0, -0.0, -0.0, -0.0, 0.0, 1.0);
// Nonzero negative values are disallowed
TestViewportCall(false, -1.0, 0.0, 1.0, 1.0, 0.0, 1.0);
TestViewportCall(false, 0.0, -1.0, 1.0, 1.0, 0.0, 1.0);
TestViewportCall(false, 0.0, 0.0, -1.0, 1.0, 0.0, 1.0);
TestViewportCall(false, 0.0, 0.0, 1.0, -1.0, 0.0, 1.0);
}
// Test to check that minDepth out of range [0, 1] is disallowed
TEST_F(SetViewportTest, MinDepthOutOfRange) {
// MinDepth is -1
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, -1.0, 1.0);
// MinDepth is 2 or 1 + epsilon
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, 2.0, 1.0);
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, nextafter(1.0f, 1000.0f), 1.0);
}
// Test to check that minDepth out of range [0, 1] is disallowed
TEST_F(SetViewportTest, MaxDepthOutOfRange) {
// MaxDepth is -1
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, 1.0, -1.0);
// MaxDepth is 2 or 1 + epsilon
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, 1.0, 2.0);
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, 1.0, nextafter(1.0f, 1000.0f));
}
// Test to check that minDepth equal or greater than maxDepth is disallowed
TEST_F(SetViewportTest, MinDepthEqualOrGreaterThanMaxDepth) {
TestViewportCall(true, 0.0, 0.0, 1.0, 1.0, 0.5, 0.5);
TestViewportCall(false, 0.0, 0.0, 1.0, 1.0, 0.8, 0.5);
}
class SetScissorTest : public ValidationTest {
protected:
void TestScissorCall(bool success, uint32_t x, uint32_t y, uint32_t width, uint32_t height) {
utils::BasicRenderPass rp = utils::CreateBasicRenderPass(device, kWidth, kHeight);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&rp.renderPassInfo);
pass.SetScissorRect(x, y, width, height);
pass.End();
if (success) {
encoder.Finish();
} else {
ASSERT_DEVICE_ERROR(encoder.Finish());
}
}
static constexpr uint32_t kWidth = 5;
static constexpr uint32_t kHeight = 3;
};
// Test to check basic use of SetScissor
TEST_F(SetScissorTest, Success) {
TestScissorCall(true, 0, 0, kWidth, kHeight);
TestScissorCall(true, 0, 0, 1, 1);
}
// Test to check that an empty scissor is allowed
TEST_F(SetScissorTest, EmptyScissor) {
// Scissor width is 0
TestScissorCall(true, 0, 0, 0, kHeight);
// Scissor height is 0
TestScissorCall(true, 0, 0, kWidth, 0);
// Both scissor width and height are 0
TestScissorCall(true, 0, 0, 0, 0);
}
// Test to check that various scissors contained in the framebuffer is allowed
TEST_F(SetScissorTest, ScissorContainedInFramebuffer) {
// Width and height are set to the render target size.
TestScissorCall(true, 0, 0, kWidth, kHeight);
// Width/height at the limit with 0 x/y is valid.
TestScissorCall(true, kWidth, 0, 0, kHeight);
TestScissorCall(true, 0, kHeight, kWidth, 0);
}
// Test to check that a scissor larger than the framebuffer is disallowed
TEST_F(SetScissorTest, ScissorLargerThanFramebuffer) {
// Width/height is larger than the rendertarget's width/height.
TestScissorCall(false, 0, 0, kWidth + 1, kHeight);
TestScissorCall(false, 0, 0, kWidth, kHeight + 1);
// x + width is larger than the rendertarget's width.
TestScissorCall(false, 2, 0, kWidth - 1, kHeight);
TestScissorCall(false, kWidth, 0, 1, kHeight);
TestScissorCall(false, std::numeric_limits<uint32_t>::max(), 0, kWidth, kHeight);
// x + height is larger than the rendertarget's height.
TestScissorCall(false, 0, 2, kWidth, kHeight - 1);
TestScissorCall(false, 0, kHeight, kWidth, 1);
TestScissorCall(false, 0, std::numeric_limits<uint32_t>::max(), kWidth, kHeight);
}
class SetBlendConstantTest : public ValidationTest {};
// Test to check basic use of SetBlendConstantTest
TEST_F(SetBlendConstantTest, Success) {
PlaceholderRenderPass renderPass(device);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
{
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
constexpr wgpu::Color kTransparentBlack{0.0f, 0.0f, 0.0f, 0.0f};
pass.SetBlendConstant(&kTransparentBlack);
pass.End();
}
encoder.Finish();
}
// Test that SetBlendConstant allows any value, large, small or negative
TEST_F(SetBlendConstantTest, AnyValueAllowed) {
PlaceholderRenderPass renderPass(device);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
{
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
constexpr wgpu::Color kAnyColorValue{-1.0f, 42.0f, -0.0f, 0.0f};
pass.SetBlendConstant(&kAnyColorValue);
pass.End();
}
encoder.Finish();
}
class SetStencilReferenceTest : public ValidationTest {};
// Test to check basic use of SetStencilReferenceTest
TEST_F(SetStencilReferenceTest, Success) {
PlaceholderRenderPass renderPass(device);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
{
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
pass.SetStencilReference(0);
pass.End();
}
encoder.Finish();
}
// Test that SetStencilReference allows any bit to be set
TEST_F(SetStencilReferenceTest, AllBitsAllowed) {
PlaceholderRenderPass renderPass(device);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
{
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
pass.SetStencilReference(0xFFFFFFFF);
pass.End();
}
encoder.Finish();
}
} // anonymous namespace
} // namespace dawn