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LibGL: Stub GL_(UN)PACK_* context parameters

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Libraries like GLU depend on their memory initialization by requesting
these parameters, so if we do not support them, segfaults will occur.
This commit is contained in:
Jelle Raaijmakers 2021-12-24 14:42:33 +01:00 committed by Andreas Kling
parent 70c6907546
commit 3883b42764
Notes: sideshowbarker 2024-07-17 22:09:19 +09:00 
Author: https://github.com/gmta
Commit: https://github.com/SerenityOS/serenity/commit/3883b42764f
Pull-request: https://github.com/SerenityOS/serenity/pull/11397
1 changed files with 22 additions and 0 deletions
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22
Userland/Libraries/LibGL/SoftwareGLContext.cpp
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@ -105,6 +105,18 @@ Optional<ContextParameter> SoftwareGLContext::get_context_parameter(GLenum name)
return ContextParameter { .type = GL_INT, .value = { .integer_value = static_cast<GLint>(m_texture_units.size()) } };
case GL_PACK_ALIGNMENT:
return ContextParameter { .type = GL_INT, .value = { .integer_value = m_pack_alignment } };
case GL_PACK_IMAGE_HEIGHT:
return ContextParameter { .type = GL_BOOL, .value = { .integer_value = 0 } };
case GL_PACK_LSB_FIRST:
return ContextParameter { .type = GL_BOOL, .value = { .boolean_value = false } };
case GL_PACK_ROW_LENGTH:
return ContextParameter { .type = GL_INT, .value = { .integer_value = 0 } };
case GL_PACK_SKIP_PIXELS:
return ContextParameter { .type = GL_INT, .value = { .integer_value = 0 } };
case GL_PACK_SKIP_ROWS:
return ContextParameter { .type = GL_INT, .value = { .integer_value = 0 } };
case GL_PACK_SWAP_BYTES:
return ContextParameter { .type = GL_BOOL, .value = { .boolean_value = false } };
case GL_RED_BITS:
return ContextParameter { .type = GL_INT, .value = { .integer_value = sizeof(float) * 8 } };
case GL_SCISSOR_BOX: {
@ -135,8 +147,18 @@ Optional<ContextParameter> SoftwareGLContext::get_context_parameter(GLenum name)
return ContextParameter { .type = GL_BOOL, .value = { .boolean_value = m_active_texture_unit->texture_cube_map_enabled() } };
case GL_UNPACK_ALIGNMENT:
return ContextParameter { .type = GL_INT, .value = { .integer_value = m_unpack_alignment } };
case GL_UNPACK_IMAGE_HEIGHT:
return ContextParameter { .type = GL_BOOL, .value = { .integer_value = 0 } };
case GL_UNPACK_LSB_FIRST:
return ContextParameter { .type = GL_BOOL, .value = { .boolean_value = false } };
case GL_UNPACK_ROW_LENGTH:
return ContextParameter { .type = GL_INT, .value = { .integer_value = m_unpack_row_length } };
case GL_UNPACK_SKIP_PIXELS:
return ContextParameter { .type = GL_INT, .value = { .integer_value = 0 } };
case GL_UNPACK_SKIP_ROWS:
return ContextParameter { .type = GL_INT, .value = { .integer_value = 0 } };
case GL_UNPACK_SWAP_BYTES:
return ContextParameter { .type = GL_BOOL, .value = { .boolean_value = false } };
default:
dbgln_if(GL_DEBUG, "get_context_parameter({:#x}): unknown context parameter", name);
return {};