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p5f fm: verify image stores through a view upgrade root storage

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swung0x48
2026-09-19 23:08:28 -04:00
parent 0dfbc89a60
commit 66c79322bc
1 changed files with 55 additions and 0 deletions
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MobileGL/MG_IntegrationTest/Scenarios/F1WireScenario.cpp
+55
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@@ -403,6 +403,61 @@ void main() {
glDeleteProgram(program);
}
TEST_F(F1WireScenario, ComputeImageStoreThroughViewPreservesOtherRootLayer) {
if (!Ready()) return;
GLuint root = 0, view = 0;
glGenTextures(1, &root);
glBindTexture(GL_TEXTURE_2D_ARRAY, root);
glTexStorage3D(GL_TEXTURE_2D_ARRAY, 1, GL_RGBA8, 8, 8, 2);
std::array<GLubyte, 8 * 8 * 2 * 4> red{};
for (size_t i = 0; i < red.size(); i += 4) {
red[i] = 255;
red[i + 3] = 255;
}
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, 0, 8, 8, 2,
GL_RGBA, GL_UNSIGNED_BYTE, red.data());
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, root, 0, 0);
ASSERT_EQ(glCheckFramebufferStatus(GL_FRAMEBUFFER), GLenum(GL_FRAMEBUFFER_COMPLETE));
// Materialize the root's Vulkan image before any storage-image binding. The
// subsequent view-only bind must upgrade the root and preserve its other layer.
std::array<GLubyte, 4> initial{};
glReadPixels(2, 3, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, initial.data());
ASSERT_EQ(initial, (std::array<GLubyte, 4>{255, 0, 0, 255}));
glGenTextures(1, &view);
glTextureView(view, GL_TEXTURE_2D, root, GL_RGBA8, 0, 1, 1, 1);
ASSERT_EQ(FirstGLError(), GLenum(GL_NO_ERROR));
const char* compute = R"(#version 430 core
layout(local_size_x=1, local_size_y=1, local_size_z=1) in;
layout(rgba8, binding=2) writeonly uniform image2D destination;
void main() { imageStore(destination, ivec2(gl_GlobalInvocationID.xy), vec4(0.0, 1.0, 0.0, 1.0)); }
)";
const GLuint program = BuildWireProgram({{GL_COMPUTE_SHADER, compute}});
ASSERT_NE(program, 0u);
glBindImageTexture(2, view, 0, GL_FALSE, 0, GL_WRITE_ONLY, GL_RGBA8);
glUseProgram(program);
glDispatchCompute(8, 8, 1);
glMemoryBarrier(GL_SHADER_IMAGE_ACCESS_BARRIER_BIT | GL_FRAMEBUFFER_BARRIER_BIT);
for (const int layer : {0, 1}) {
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, root, 0, layer);
std::array<GLubyte, 8 * 8 * 4> pixels{};
glReadPixels(0, 0, 8, 8, GL_RGBA, GL_UNSIGNED_BYTE, pixels.data());
ASSERT_EQ(FirstGLError(), GLenum(GL_NO_ERROR));
const std::array<GLubyte, 4> expected = layer == 1
? std::array<GLubyte, 4>{0, 255, 0, 255} : std::array<GLubyte, 4>{255, 0, 0, 255};
for (size_t at = 0; at < pixels.size(); at += 4) {
const std::array<GLubyte, 4> actual{pixels[at], pixels[at + 1], pixels[at + 2], pixels[at + 3]};
EXPECT_EQ(actual, expected) << "root layer " << layer << ", texel " << at / 4;
}
}
glBindImageTexture(2, 0, 0, GL_FALSE, 0, GL_WRITE_ONLY, GL_RGBA8);
glUseProgram(0);
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, 0, 0);
glBindTexture(GL_TEXTURE_2D_ARRAY, 0);
glDeleteProgram(program);
glDeleteTextures(1, &view);
glDeleteTextures(1, &root);
}
TEST_F(F1WireScenario, EnabledVertexBufferDrawKeepsNamedP7Fatal) {
if (!Ready()) return;
#if !defined(_WIN32) && GTEST_HAS_DEATH_TEST