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Drop a limitation for R8/RG8 formats for Mesa in hasOpenGLFeature

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The mentioned version is from 2015.

Pick-to: 6.9
Change-Id: I330bd8ec08ab815a85d3e4e5afc44f314ade2ef6
Reviewed-by: Kristoffer Skau <kristoffer.skau@qt.io>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
This commit is contained in:
Laszlo Agocs 2025-01-09 12:15:23 +01:00
parent 3c338def89
commit 20b07bfa30
1 changed files with 2 additions and 6 deletions
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8
src/gui/opengl/qopenglfunctions.cpp
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@ -239,12 +239,8 @@ static int qt_gl_resolve_features()
if (extensions.match("GL_OES_texture_npot"))
features |= QOpenGLFunctions::NPOTTextures |
QOpenGLFunctions::NPOTTextureRepeat;
if (ctx->format().majorVersion() >= 3 || extensions.match("GL_EXT_texture_rg")) {
// Mesa's GLES implementation (as of 10.6.0) is unable to handle this, even though it provides 3.0.
const char *renderer = reinterpret_cast<const char *>(ctx->functions()->glGetString(GL_RENDERER));
if (!(renderer && strstr(renderer, "Mesa")))
features |= QOpenGLFunctions::TextureRGFormats;
}
if (ctx->format().majorVersion() >= 3 || extensions.match("GL_EXT_texture_rg"))
features |= QOpenGLFunctions::TextureRGFormats;
if (ctx->format().majorVersion() >= 3) {
features |= QOpenGLFunctions::MultipleRenderTargets;
if (ctx->format().minorVersion() >= 2 && extensions.match("GL_KHR_blend_equation_advanced_coherent")) {