mirror of
https://github.com/glfw/glfw.git
synced 2024-11-13 14:03:52 +00:00
65fc4fa625
The OpenBSD ports tree assigns its own soname version numbers, so the
hardcoded sonames GLFW uses to load libraries on non-macOS Unices are
often incorrect. Instead OpenBSD recommends that run-time loading
should leave out the version numbers entirely. The OpenBSD ld.so then
finds the correct library.
This upstreams the ports tree fixes for Xcursor and EGL, and adds the
corresponding fix for all other run-time loaded library sonames.
Tested on OpenBSD 7.0.
This issue was initially reported on IRC.
(cherry picked from commit 7d060ba4f1)
387 lines
12 KiB
C
387 lines
12 KiB
C
//========================================================================
|
|
// GLFW 3.3 OSMesa - www.glfw.org
|
|
//------------------------------------------------------------------------
|
|
// Copyright (c) 2016 Google Inc.
|
|
// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
|
|
//
|
|
// This software is provided 'as-is', without any express or implied
|
|
// warranty. In no event will the authors be held liable for any damages
|
|
// arising from the use of this software.
|
|
//
|
|
// Permission is granted to anyone to use this software for any purpose,
|
|
// including commercial applications, and to alter it and redistribute it
|
|
// freely, subject to the following restrictions:
|
|
//
|
|
// 1. The origin of this software must not be misrepresented; you must not
|
|
// claim that you wrote the original software. If you use this software
|
|
// in a product, an acknowledgment in the product documentation would
|
|
// be appreciated but is not required.
|
|
//
|
|
// 2. Altered source versions must be plainly marked as such, and must not
|
|
// be misrepresented as being the original software.
|
|
//
|
|
// 3. This notice may not be removed or altered from any source
|
|
// distribution.
|
|
//
|
|
//========================================================================
|
|
// Please use C89 style variable declarations in this file because VS 2010
|
|
//========================================================================
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include "internal.h"
|
|
|
|
|
|
static void makeContextCurrentOSMesa(_GLFWwindow* window)
|
|
{
|
|
if (window)
|
|
{
|
|
int width, height;
|
|
_glfwPlatformGetFramebufferSize(window, &width, &height);
|
|
|
|
// Check to see if we need to allocate a new buffer
|
|
if ((window->context.osmesa.buffer == NULL) ||
|
|
(width != window->context.osmesa.width) ||
|
|
(height != window->context.osmesa.height))
|
|
{
|
|
free(window->context.osmesa.buffer);
|
|
|
|
// Allocate the new buffer (width * height * 8-bit RGBA)
|
|
window->context.osmesa.buffer = calloc(4, (size_t) width * height);
|
|
window->context.osmesa.width = width;
|
|
window->context.osmesa.height = height;
|
|
}
|
|
|
|
if (!OSMesaMakeCurrent(window->context.osmesa.handle,
|
|
window->context.osmesa.buffer,
|
|
GL_UNSIGNED_BYTE,
|
|
width, height))
|
|
{
|
|
_glfwInputError(GLFW_PLATFORM_ERROR,
|
|
"OSMesa: Failed to make context current");
|
|
return;
|
|
}
|
|
}
|
|
|
|
_glfwPlatformSetTls(&_glfw.contextSlot, window);
|
|
}
|
|
|
|
static GLFWglproc getProcAddressOSMesa(const char* procname)
|
|
{
|
|
return (GLFWglproc) OSMesaGetProcAddress(procname);
|
|
}
|
|
|
|
static void destroyContextOSMesa(_GLFWwindow* window)
|
|
{
|
|
if (window->context.osmesa.handle)
|
|
{
|
|
OSMesaDestroyContext(window->context.osmesa.handle);
|
|
window->context.osmesa.handle = NULL;
|
|
}
|
|
|
|
if (window->context.osmesa.buffer)
|
|
{
|
|
free(window->context.osmesa.buffer);
|
|
window->context.osmesa.width = 0;
|
|
window->context.osmesa.height = 0;
|
|
}
|
|
}
|
|
|
|
static void swapBuffersOSMesa(_GLFWwindow* window)
|
|
{
|
|
// No double buffering on OSMesa
|
|
}
|
|
|
|
static void swapIntervalOSMesa(int interval)
|
|
{
|
|
// No swap interval on OSMesa
|
|
}
|
|
|
|
static int extensionSupportedOSMesa(const char* extension)
|
|
{
|
|
// OSMesa does not have extensions
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW internal API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
GLFWbool _glfwInitOSMesa(void)
|
|
{
|
|
int i;
|
|
const char* sonames[] =
|
|
{
|
|
#if defined(_GLFW_OSMESA_LIBRARY)
|
|
_GLFW_OSMESA_LIBRARY,
|
|
#elif defined(_WIN32)
|
|
"libOSMesa.dll",
|
|
"OSMesa.dll",
|
|
#elif defined(__APPLE__)
|
|
"libOSMesa.8.dylib",
|
|
#elif defined(__CYGWIN__)
|
|
"libOSMesa-8.so",
|
|
#elif defined(__OpenBSD__)
|
|
"libOSMesa.so",
|
|
#else
|
|
"libOSMesa.so.8",
|
|
"libOSMesa.so.6",
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
if (_glfw.osmesa.handle)
|
|
return GLFW_TRUE;
|
|
|
|
for (i = 0; sonames[i]; i++)
|
|
{
|
|
_glfw.osmesa.handle = _glfw_dlopen(sonames[i]);
|
|
if (_glfw.osmesa.handle)
|
|
break;
|
|
}
|
|
|
|
if (!_glfw.osmesa.handle)
|
|
{
|
|
_glfwInputError(GLFW_API_UNAVAILABLE, "OSMesa: Library not found");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
_glfw.osmesa.CreateContextExt = (PFN_OSMesaCreateContextExt)
|
|
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaCreateContextExt");
|
|
_glfw.osmesa.CreateContextAttribs = (PFN_OSMesaCreateContextAttribs)
|
|
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaCreateContextAttribs");
|
|
_glfw.osmesa.DestroyContext = (PFN_OSMesaDestroyContext)
|
|
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaDestroyContext");
|
|
_glfw.osmesa.MakeCurrent = (PFN_OSMesaMakeCurrent)
|
|
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaMakeCurrent");
|
|
_glfw.osmesa.GetColorBuffer = (PFN_OSMesaGetColorBuffer)
|
|
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaGetColorBuffer");
|
|
_glfw.osmesa.GetDepthBuffer = (PFN_OSMesaGetDepthBuffer)
|
|
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaGetDepthBuffer");
|
|
_glfw.osmesa.GetProcAddress = (PFN_OSMesaGetProcAddress)
|
|
_glfw_dlsym(_glfw.osmesa.handle, "OSMesaGetProcAddress");
|
|
|
|
if (!_glfw.osmesa.CreateContextExt ||
|
|
!_glfw.osmesa.DestroyContext ||
|
|
!_glfw.osmesa.MakeCurrent ||
|
|
!_glfw.osmesa.GetColorBuffer ||
|
|
!_glfw.osmesa.GetDepthBuffer ||
|
|
!_glfw.osmesa.GetProcAddress)
|
|
{
|
|
_glfwInputError(GLFW_PLATFORM_ERROR,
|
|
"OSMesa: Failed to load required entry points");
|
|
|
|
_glfwTerminateOSMesa();
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
return GLFW_TRUE;
|
|
}
|
|
|
|
void _glfwTerminateOSMesa(void)
|
|
{
|
|
if (_glfw.osmesa.handle)
|
|
{
|
|
_glfw_dlclose(_glfw.osmesa.handle);
|
|
_glfw.osmesa.handle = NULL;
|
|
}
|
|
}
|
|
|
|
#define setAttrib(a, v) \
|
|
{ \
|
|
assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
|
|
attribs[index++] = a; \
|
|
attribs[index++] = v; \
|
|
}
|
|
|
|
GLFWbool _glfwCreateContextOSMesa(_GLFWwindow* window,
|
|
const _GLFWctxconfig* ctxconfig,
|
|
const _GLFWfbconfig* fbconfig)
|
|
{
|
|
OSMesaContext share = NULL;
|
|
const int accumBits = fbconfig->accumRedBits +
|
|
fbconfig->accumGreenBits +
|
|
fbconfig->accumBlueBits +
|
|
fbconfig->accumAlphaBits;
|
|
|
|
if (ctxconfig->client == GLFW_OPENGL_ES_API)
|
|
{
|
|
_glfwInputError(GLFW_API_UNAVAILABLE,
|
|
"OSMesa: OpenGL ES is not available on OSMesa");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
if (ctxconfig->share)
|
|
share = ctxconfig->share->context.osmesa.handle;
|
|
|
|
if (OSMesaCreateContextAttribs)
|
|
{
|
|
int index = 0, attribs[40];
|
|
|
|
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);
|
|
}
|
|
|
|
if (ctxconfig->forward)
|
|
{
|
|
_glfwInputError(GLFW_VERSION_UNAVAILABLE,
|
|
"OSMesa: Forward-compatible contexts not supported");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
setAttrib(0, 0);
|
|
|
|
window->context.osmesa.handle =
|
|
OSMesaCreateContextAttribs(attribs, share);
|
|
}
|
|
else
|
|
{
|
|
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 (window->context.osmesa.handle == NULL)
|
|
{
|
|
_glfwInputError(GLFW_VERSION_UNAVAILABLE,
|
|
"OSMesa: Failed to create context");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
window->context.makeCurrent = makeContextCurrentOSMesa;
|
|
window->context.swapBuffers = swapBuffersOSMesa;
|
|
window->context.swapInterval = swapIntervalOSMesa;
|
|
window->context.extensionSupported = extensionSupportedOSMesa;
|
|
window->context.getProcAddress = getProcAddressOSMesa;
|
|
window->context.destroy = destroyContextOSMesa;
|
|
|
|
return GLFW_TRUE;
|
|
}
|
|
|
|
#undef setAttrib
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW native API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* handle, int* width,
|
|
int* height, int* format, void** buffer)
|
|
{
|
|
void* mesaBuffer;
|
|
GLint mesaWidth, mesaHeight, mesaFormat;
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
assert(window != NULL);
|
|
|
|
_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
|
|
|
|
if (window->context.source != GLFW_OSMESA_CONTEXT_API)
|
|
{
|
|
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
if (!OSMesaGetColorBuffer(window->context.osmesa.handle,
|
|
&mesaWidth, &mesaHeight,
|
|
&mesaFormat, &mesaBuffer))
|
|
{
|
|
_glfwInputError(GLFW_PLATFORM_ERROR,
|
|
"OSMesa: Failed to retrieve color buffer");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
if (width)
|
|
*width = mesaWidth;
|
|
if (height)
|
|
*height = mesaHeight;
|
|
if (format)
|
|
*format = mesaFormat;
|
|
if (buffer)
|
|
*buffer = mesaBuffer;
|
|
|
|
return GLFW_TRUE;
|
|
}
|
|
|
|
GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* handle,
|
|
int* width, int* height,
|
|
int* bytesPerValue,
|
|
void** buffer)
|
|
{
|
|
void* mesaBuffer;
|
|
GLint mesaWidth, mesaHeight, mesaBytes;
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
assert(window != NULL);
|
|
|
|
_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
|
|
|
|
if (window->context.source != GLFW_OSMESA_CONTEXT_API)
|
|
{
|
|
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
if (!OSMesaGetDepthBuffer(window->context.osmesa.handle,
|
|
&mesaWidth, &mesaHeight,
|
|
&mesaBytes, &mesaBuffer))
|
|
{
|
|
_glfwInputError(GLFW_PLATFORM_ERROR,
|
|
"OSMesa: Failed to retrieve depth buffer");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
if (width)
|
|
*width = mesaWidth;
|
|
if (height)
|
|
*height = mesaHeight;
|
|
if (bytesPerValue)
|
|
*bytesPerValue = mesaBytes;
|
|
if (buffer)
|
|
*buffer = mesaBuffer;
|
|
|
|
return GLFW_TRUE;
|
|
}
|
|
|
|
GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* handle)
|
|
{
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
|
|
|
|
if (window->context.source != GLFW_OSMESA_CONTEXT_API)
|
|
{
|
|
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
|
|
return NULL;
|
|
}
|
|
|
|
return window->context.osmesa.handle;
|
|
}
|
|
|