swung0x48/MobileGL
1
0
Fork 0
mirror of https://github.com/MobileGL-Dev/MobileGL synced 2026-09-08 20:28:32 +09:00
Code Issues Packages Projects Releases Wiki Activity

[Fix, Test] (MG_Backend, MG_Impl, MG_State): advertise the uniform-block and stencil-texturing strings a 4.0 context hides behind, forward DEPTH_STENCIL_TEXTURE_MODE to both backends, and stop a reserved transform feedback name passing for an object

Browse Source
This commit is contained in:
swung0x48
2026-08-12 15:12:01 -04:00
parent a6e029734b
commit 6b6623ae72
11 changed files with 221 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
MobileGL/MG_Test/Texture/TextureTest.cpp
+37
View File
@@ -1651,6 +1651,43 @@ TEST_F(TextureTest, AnUncompressedRespecificationClearsTheCompressedTag) {
EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
}
// GL_DEPTH_STENCIL_TEXTURE_MODE used to be a pure frontend shadow: stored, answered by
// glGetTexParameter, and never shown to a backend. Sampling therefore always read the depth
// aspect however the mode was set, which is the whole of
// KHR-GL3x.packed_depth_stencil.stencil_texturing. Both backends pick the aspect up through the
// texture-params version - DirectGLES re-emits glTexParameteri when it moves, DirectVulkan
// rebuilds the sampled image view - so the version bump is the load-bearing part, and a
// no-op write must not spend one (every bump costs DirectVulkan a view recreation).
TEST_F(TextureTest, DepthStencilTextureModeIsBackendVisibleThroughTheParamsVersion) {
GLuint texture = 0;
MG_Impl::GLImpl::GenTextures(1, &texture);
MG_Impl::GLImpl::BindTexture(GL_TEXTURE_2D, texture);
MG_Impl::GLImpl::TexStorage2D(GL_TEXTURE_2D, 1, GL_DEPTH24_STENCIL8, 8, 8);
ASSERT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
const auto textureObject = MG_State::pGLContext->GetTextureObject(texture);
ASSERT_NE(textureObject, nullptr);
EXPECT_EQ(textureObject->GetDepthStencilTextureMode(), static_cast<GLenum>(GL_DEPTH_COMPONENT));
const Uint16 initialVersion = textureObject->GetTextureParamsVersion();
MG_Impl::GLImpl::TexParameteri(GL_TEXTURE_2D, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_STENCIL_INDEX);
ASSERT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
EXPECT_EQ(textureObject->GetDepthStencilTextureMode(), static_cast<GLenum>(GL_STENCIL_INDEX));
EXPECT_NE(textureObject->GetTextureParamsVersion(), initialVersion);
// Re-writing the value already in force is not a change and must not invalidate anything.
const Uint16 settledVersion = textureObject->GetTextureParamsVersion();
MG_Impl::GLImpl::TexParameteri(GL_TEXTURE_2D, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_STENCIL_INDEX);
ASSERT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
EXPECT_EQ(textureObject->GetTextureParamsVersion(), settledVersion);
// ...and going back to the depth aspect is a change again.
MG_Impl::GLImpl::TexParameteri(GL_TEXTURE_2D, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_DEPTH_COMPONENT);
ASSERT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
EXPECT_EQ(textureObject->GetDepthStencilTextureMode(), static_cast<GLenum>(GL_DEPTH_COMPONENT));
EXPECT_NE(textureObject->GetTextureParamsVersion(), settledVersion);
}
namespace {
// 8x8 RGTC1: 2x2 blocks of 8 bytes, so the stored image is 32 bytes and one block row is 16.
constexpr GLsizei kRgtc1Size8x8 = 32;