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OSMesa: Add fallback to OSMesaCreateContextExt

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This commit is contained in:
Camilla Berglund
2016-11-08 22:44:59 +01:00
parent b8c71e7f2d
commit 62012e3c68
2 changed files with 52 additions and 23 deletions
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src/osmesa_context.c
+49 -23
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@@ -120,6 +120,7 @@ GLFWbool _glfwInitOSMesa(void)
#elif defined(__CYGWIN__)
"libOSMesa-8.so",
#else
"libOSMesa.so.8",
"libOSMesa.so.6",
#endif
NULL
@@ -141,6 +142,8 @@ GLFWbool _glfwInitOSMesa(void)
return GLFW_FALSE;
}
_glfw.osmesa.CreateContextExt = (PFNOSMESACREATECONTEXTEXTPROC)
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaCreateContextExt");
_glfw.osmesa.CreateContextAttribs = (PFNOSMESACREATECONTEXTATTRIBSPROC)
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaCreateContextAttribs");
_glfw.osmesa.DestroyContext = (PFNOSMESADESTROYCONTEXTPROC)
@@ -154,7 +157,7 @@ GLFWbool _glfwInitOSMesa(void)
_glfw.osmesa.GetProcAddress = (PFNOSMESAGETPROCADDRESSPROC)
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaGetProcAddress");
if (!_glfw.osmesa.CreateContextAttribs ||
if (!_glfw.osmesa.CreateContextExt ||
!_glfw.osmesa.DestroyContext ||
!_glfw.osmesa.MakeCurrent ||
!_glfw.osmesa.GetColorBuffer ||
@@ -192,37 +195,60 @@ GLFWbool _glfwCreateContextOSMesa(_GLFWwindow* window,
const _GLFWfbconfig* fbconfig)
{
OSMesaContext share = NULL;
int index = 0, attribs[40];
const int accumBits = fbconfig->accumRedBits +
fbconfig->accumGreenBits +
fbconfig->accumBlueBits +
fbconfig->accumAlphaBits;
if (ctxconfig->share)
share = ctxconfig->share->context.osmesa.handle;
setAttrib(OSMESA_FORMAT, OSMESA_RGBA);
setAttrib(OSMESA_DEPTH_BITS, fbconfig->depthBits);
setAttrib(OSMESA_STENCIL_BITS, fbconfig->stencilBits);
setAttrib(OSMESA_ACCUM_BITS, fbconfig->accumRedBits +
fbconfig->accumGreenBits +
fbconfig->accumBlueBits +
fbconfig->accumAlphaBits);
if (OSMesaCreateContextAttribs)
{
int index = 0, attribs[40];
if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
{
setAttrib(OSMESA_PROFILE, OSMESA_CORE_PROFILE);
setAttrib(OSMESA_FORMAT, OSMESA_RGBA);
setAttrib(OSMESA_DEPTH_BITS, fbconfig->depthBits);
setAttrib(OSMESA_STENCIL_BITS, fbconfig->stencilBits);
setAttrib(OSMESA_ACCUM_BITS, accumBits);
if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
{
setAttrib(OSMESA_PROFILE, OSMESA_CORE_PROFILE);
}
else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
{
setAttrib(OSMESA_PROFILE, OSMESA_COMPAT_PROFILE);
}
if (ctxconfig->major != 1 || ctxconfig->minor != 0)
{
setAttrib(OSMESA_CONTEXT_MAJOR_VERSION, ctxconfig->major);
setAttrib(OSMESA_CONTEXT_MINOR_VERSION, ctxconfig->minor);
}
setAttrib(0, 0);
window->context.osmesa.handle =
OSMesaCreateContextAttribs(attribs, share);
}
else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
else
{
setAttrib(OSMESA_PROFILE, OSMESA_COMPAT_PROFILE);
if (ctxconfig->profile)
{
_glfwInputError(GLFW_VERSION_UNAVAILABLE,
"OSMesa: OpenGL profiles unavailable");
return GLFW_FALSE;
}
window->context.osmesa.handle =
OSMesaCreateContextExt(OSMESA_RGBA,
fbconfig->depthBits,
fbconfig->stencilBits,
accumBits,
share);
}
if (ctxconfig->major != 1 || ctxconfig->minor != 0)
{
setAttrib(OSMESA_CONTEXT_MAJOR_VERSION, ctxconfig->major);
setAttrib(OSMESA_CONTEXT_MINOR_VERSION, ctxconfig->minor);
}
setAttrib(0, 0);
window->context.osmesa.handle = OSMesaCreateContextAttribs(attribs, share);
if (window->context.osmesa.handle == NULL)
{
_glfwInputError(GLFW_VERSION_UNAVAILABLE,