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[Fix] (MG_Backend/DirectGLES, MG_Impl/GLImpl): sync GL_TEXTURE_2D_ARRAY textures to the ES backend - the target was skipped as unsupported so array textures never uploaded or bound (every KHR-GL33.pixelstoragemodes.teximage3d case failed); also keep array layer counts constant across mip levels in TexStorage3D and generated-mip storage allocation (only true 3D textures halve depth)

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This commit is contained in:
swung0x48
2026-07-16 19:44:20 -04:00
parent 075471cdbd
commit 25323bfb8e
3 changed files with 25 additions and 9 deletions
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MobileGL/MG_Backend/DirectGLES/Managers.cpp
+6 -1
View File
@@ -1715,6 +1715,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
0, glFormat, glType, uploadData);
break;
case TextureTarget::Texture3D:
case TextureTarget::Texture2DArray:
g_GLESFuncs.glTexImage3D(
glUploadTarget, static_cast<GLint>(level), (GLint)glInternalFormat,
static_cast<GLsizei>(levelTexelSize.x()), static_cast<GLsizei>(levelTexelSize.y()),
@@ -1790,6 +1791,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
static_cast<GLsizei>(baseSize.y()));
break;
case TextureTarget::Texture3D:
case TextureTarget::Texture2DArray:
g_GLESFuncs.glTexStorage3D(target, static_cast<GLsizei>(mipmapCount), glInternalFormat,
static_cast<GLsizei>(baseSize.x()),
static_cast<GLsizei>(baseSize.y()),
@@ -1835,6 +1837,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
static_cast<GLsizei>(levelTexelSize.y()), glFormat, glType, uploadData);
break;
case TextureTarget::Texture3D:
case TextureTarget::Texture2DArray:
g_GLESFuncs.glTexSubImage3D(
glUploadTarget, static_cast<GLint>(level), 0, 0, 0,
static_cast<GLsizei>(levelTexelSize.x()),
@@ -1893,7 +1896,8 @@ namespace MobileGL::MG_Backend::DirectGLES {
static_cast<GLsizei>(levelTexelSize.y()), 0, glFormat, glType, uploadData);
break;
}
case TextureTarget::Texture3D: {
case TextureTarget::Texture3D:
case TextureTarget::Texture2DArray: {
g_GLESFuncs.glTexImage3D(
glUploadTarget, static_cast<GLint>(level), (GLint)glInternalFormat,
static_cast<GLsizei>(levelTexelSize.x()),
@@ -1987,6 +1991,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
uploadData);
break;
case TextureTarget::Texture3D:
case TextureTarget::Texture2DArray:
g_GLESFuncs.glTexSubImage3D(glUploadTarget, static_cast<GLint>(level), 0, 0, 0,
static_cast<GLsizei>(texelSize.x()),
static_cast<GLsizei>(texelSize.y()),
MobileGL/MG_Backend/DirectGLES/Managers.h
+1 -1
View File
@@ -255,7 +255,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
namespace TextureImpl {
inline Bool IsSupportedTextureTarget(TextureTarget target) {
if (target == TextureTarget::Texture1D || target == TextureTarget::TextureRectangle ||
target == TextureTarget::Texture1DArray || target == TextureTarget::Texture2DArray)
target == TextureTarget::Texture1DArray)
return false;
return true;
}
MobileGL/MG_Impl/GLImpl/Texture/GL_Texture.cpp
+18 -7
View File
@@ -284,10 +284,16 @@ namespace MobileGL::MG_Impl::GLImpl {
MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS));
}
Uint ComputeFullMipmapLevelCount(const IntVec3& baseTexelSize) {
// Array targets store their layer count in z; layers never participate in mip
// reduction (GL 3.3 §3.8.14), only true 3D textures halve their depth per level.
Bool DepthParticipatesInMipmapping(TextureTarget target) {
return target == TextureTarget::Texture3D;
}
Uint ComputeFullMipmapLevelCount(const IntVec3& baseTexelSize, Bool depthMips) {
Int maxDimension = std::max<Int>(
baseTexelSize.x(),
std::max<Int>(baseTexelSize.y(), std::max<Int>(baseTexelSize.z(), 1)));
std::max<Int>(baseTexelSize.y(), depthMips ? std::max<Int>(baseTexelSize.z(), 1) : 1));
Uint mipLevelCount = 1;
while (maxDimension > 1) {
maxDimension = std::max<Int>(maxDimension / 2, 1);
@@ -296,11 +302,12 @@ namespace MobileGL::MG_Impl::GLImpl {
return mipLevelCount;
}
IntVec3 ComputeMipmapTexelSize(const IntVec3& baseTexelSize, Uint relativeLevel) {
IntVec3 ComputeMipmapTexelSize(const IntVec3& baseTexelSize, Uint relativeLevel, Bool depthMips) {
return {
std::max<Int>(baseTexelSize.x() >> static_cast<Int>(relativeLevel), 1),
std::max<Int>(baseTexelSize.y() >> static_cast<Int>(relativeLevel), 1),
std::max<Int>(baseTexelSize.z() >> static_cast<Int>(relativeLevel), 1),
depthMips ? std::max<Int>(baseTexelSize.z() >> static_cast<Int>(relativeLevel), 1)
: std::max<Int>(baseTexelSize.z(), 1),
};
}
@@ -323,9 +330,10 @@ namespace MobileGL::MG_Impl::GLImpl {
}
const SizeT bytesPerTexel = baseByteSize / baseTexelCount;
const Uint requiredLevelCount = ComputeFullMipmapLevelCount(baseTexelSize);
const Bool depthMips = DepthParticipatesInMipmapping(texture.GetTarget());
const Uint requiredLevelCount = ComputeFullMipmapLevelCount(baseTexelSize, depthMips);
for (Uint level = 1; level < requiredLevelCount; ++level) {
const IntVec3 levelTexelSize = ComputeMipmapTexelSize(baseTexelSize, level);
const IntVec3 levelTexelSize = ComputeMipmapTexelSize(baseTexelSize, level, depthMips);
const SizeT levelByteSize = bytesPerTexel * static_cast<SizeT>(levelTexelSize.x()) *
static_cast<SizeT>(levelTexelSize.y()) *
static_cast<SizeT>(levelTexelSize.z());
@@ -2939,10 +2947,13 @@ namespace MobileGL::MG_Impl::GLImpl {
auto* textureMipmapObject = static_cast<MG_State::GLState::TextureObjectMipmap*>(textureObject.get());
textureObject->SetInternalFormat(textureInternalFormat);
// Array targets keep their layer count constant across levels; only true 3D
// textures halve depth per level (GL 3.3 §3.9 glTexStorage3D).
const Bool depthMips = DepthParticipatesInMipmapping(textureObject->GetTarget());
for (GLsizei level = 0; level < levels; ++level) {
const GLsizei levelWidth = std::max<GLsizei>(1, width >> level);
const GLsizei levelHeight = std::max<GLsizei>(1, height >> level);
const GLsizei levelDepth = std::max<GLsizei>(1, depth >> level);
const GLsizei levelDepth = depthMips ? std::max<GLsizei>(1, depth >> level) : depth;
const SizeT byteSize = ComputeTextureStorageByteSize(textureInternalFormat, levelWidth, levelHeight,
levelDepth);
textureMipmapObject->AllocateStorage(textureUploadTarget, level,