b79642ef74
In its current state, ScummVM seems to invoke these methods just after
destroying the current GL context. According to the OpenGL spec:
"Issuing GL commands when the program does not have a current
context results in undefined behavior, up to and including program
termination."
Our old behavior was to deref a `nullptr`, which isn't that great. For
now, protect these two methods. If other ports seem to misbehave as
well, we can always expand the check to other methods.
178 lines
3.3 KiB
C++
178 lines
3.3 KiB
C++
/*
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* Copyright (c) 2021, Jesse Buhagiar <jooster669@gmail.com>
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* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "GL/gl.h"
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#include "GLContext.h"
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extern GL::GLContext* g_gl_context;
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void glEnable(GLenum cap)
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{
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g_gl_context->gl_enable(cap);
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}
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void glDisable(GLenum cap)
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{
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g_gl_context->gl_disable(cap);
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}
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GLboolean glIsEnabled(GLenum cap)
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{
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return g_gl_context->gl_is_enabled(cap);
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}
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void glFrontFace(GLenum mode)
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{
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g_gl_context->gl_front_face(mode);
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}
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void glCullFace(GLenum mode)
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{
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g_gl_context->gl_cull_face(mode);
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}
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void glClear(GLbitfield mask)
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{
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g_gl_context->gl_clear(mask);
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}
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void glClearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)
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{
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g_gl_context->gl_clear_color(red, green, blue, alpha);
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}
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void glClearDepth(GLdouble depth)
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{
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g_gl_context->gl_clear_depth(depth);
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}
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void glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha)
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{
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g_gl_context->gl_color_mask(red, green, blue, alpha);
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}
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GLubyte* glGetString(GLenum name)
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{
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return g_gl_context->gl_get_string(name);
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}
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void glViewport(GLint x, GLint y, GLsizei width, GLsizei height)
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{
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g_gl_context->gl_viewport(x, y, width, height);
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}
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GLenum glGetError()
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{
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VERIFY_CURRENT_CONTEXT_OR_VALUE(GL_NONE);
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return g_gl_context->gl_get_error();
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}
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void glFlush()
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{
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g_gl_context->gl_flush();
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}
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void glFinish()
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{
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g_gl_context->gl_finish();
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}
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void glHint(GLenum target, GLenum mode)
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{
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g_gl_context->gl_hint(target, mode);
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}
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void glReadBuffer(GLenum mode)
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{
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g_gl_context->gl_read_buffer(mode);
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}
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void glDrawBuffer(GLenum buffer)
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{
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g_gl_context->gl_draw_buffer(buffer);
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}
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void glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid* pixels)
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{
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g_gl_context->gl_read_pixels(x, y, width, height, format, type, pixels);
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}
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void glGetBooleanv(GLenum pname, GLboolean* data)
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{
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g_gl_context->gl_get_booleanv(pname, data);
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}
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void glGetDoublev(GLenum pname, GLdouble* params)
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{
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g_gl_context->gl_get_doublev(pname, params);
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}
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void glGetFloatv(GLenum pname, GLfloat* params)
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{
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g_gl_context->gl_get_floatv(pname, params);
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}
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void glGetIntegerv(GLenum pname, GLint* data)
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{
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VERIFY_CURRENT_CONTEXT();
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g_gl_context->gl_get_integerv(pname, data);
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}
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void glDepthMask(GLboolean flag)
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{
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g_gl_context->gl_depth_mask(flag);
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}
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void glEnableClientState(GLenum cap)
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{
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g_gl_context->gl_enable_client_state(cap);
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}
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void glDisableClientState(GLenum cap)
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{
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g_gl_context->gl_disable_client_state(cap);
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}
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void glDepthRange(GLdouble min, GLdouble max)
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{
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g_gl_context->gl_depth_range(min, max);
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}
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void glDepthFunc(GLenum func)
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{
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g_gl_context->gl_depth_func(func);
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}
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void glPolygonMode(GLenum face, GLenum mode)
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{
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g_gl_context->gl_polygon_mode(face, mode);
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}
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void glPolygonOffset(GLfloat factor, GLfloat units)
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{
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g_gl_context->gl_polygon_offset(factor, units);
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}
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void glPixelStorei(GLenum pname, GLint param)
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{
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g_gl_context->gl_pixel_storei(pname, param);
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}
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void glScissor(GLint x, GLint y, GLsizei width, GLsizei height)
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{
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g_gl_context->gl_scissor(x, y, width, height);
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}
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void glPushAttrib(GLbitfield mask)
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{
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g_gl_context->gl_push_attrib(mask);
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}
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void glPopAttrib()
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{
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g_gl_context->gl_pop_attrib();
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}
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