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Make native access functions verify context API

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The native access functions for context handles did not verify that the
context had been created with the same API the function was for.

This makes these functions emit GLFW_NO_WINDOW_CONTEXT on API mismatch.

(cherry picked from commit cca9008db2)
This commit is contained in:
Camilla Löwy 2021-10-04 20:32:32 +02:00
parent cec0b33ee1
commit 2d3ce6eaae
6 changed files with 20 additions and 7 deletions
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1
README.md
View File

@ -121,6 +121,7 @@ information on what to include when reporting a bug.
- Bugfix: Buffers were swapped at creation on single-buffered windows (#1873)
- Bugfix: Gamepad mapping updates could spam `GLFW_INVALID_VALUE` due to
incompatible controllers sharing hardware ID (#1763)
- Bugfix: Native access functions for context handles did not check that the API matched
- [Win32] Bugfix: `USE_MSVC_RUNTIME_LIBRARY_DLL` had no effect on CMake 3.15 or
later (#1783,#1796)
- [Win32] Bugfix: Compilation with LLVM for Windows failed (#1807,#1824,#1874)

4
src/egl_context.c
View File

@ -765,7 +765,7 @@ GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* handle)
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_CONTEXT);
if (window->context.client == GLFW_NO_API)
if (window->context.client != GLFW_EGL_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return EGL_NO_CONTEXT;
@ -779,7 +779,7 @@ GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* handle)
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_SURFACE);
if (window->context.client == GLFW_NO_API)
if (window->context.client != GLFW_EGL_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return EGL_NO_SURFACE;

4
src/glx_context.c
View File

@ -674,7 +674,7 @@ GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* handle)
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (window->context.client == GLFW_NO_API)
if (window->context.client != GLFW_NATIVE_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return NULL;
@ -688,7 +688,7 @@ GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* handle)
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(None);
if (window->context.client == GLFW_NO_API)
if (window->context.client != GLFW_NATIVE_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return None;

2
src/nsgl_context.m
View File

@ -365,7 +365,7 @@ GLFWAPI id glfwGetNSGLContext(GLFWwindow* handle)
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(nil);
if (window->context.client == GLFW_NO_API)
if (window->context.client != GLFW_NATIVE_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return nil;

14
src/osmesa_context.c
View File

@ -302,6 +302,12 @@ GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* handle, int* width,
_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
if (window->context.client != GLFW_OSMESA_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return GLFW_FALSE;
}
if (!OSMesaGetColorBuffer(window->context.osmesa.handle,
&mesaWidth, &mesaHeight,
&mesaFormat, &mesaBuffer))
@ -335,6 +341,12 @@ GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* handle,
_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
if (window->context.client != GLFW_OSMESA_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return GLFW_FALSE;
}
if (!OSMesaGetDepthBuffer(window->context.osmesa.handle,
&mesaWidth, &mesaHeight,
&mesaBytes, &mesaBuffer))
@ -361,7 +373,7 @@ GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* handle)
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (window->context.client == GLFW_NO_API)
if (window->context.client != GLFW_OSMESA_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return NULL;

2
src/wgl_context.c
View File

@ -787,7 +787,7 @@ GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* handle)
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (window->context.client == GLFW_NO_API)
if (window->context.client != GLFW_NATIVE_CONTEXT_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return NULL;