aboutsummaryrefslogtreecommitdiffstats
path: root/pugl/detail/x11_gl.c
diff options
context:
space:
mode:
Diffstat (limited to 'pugl/detail/x11_gl.c')
-rw-r--r--pugl/detail/x11_gl.c238
1 files changed, 0 insertions, 238 deletions
diff --git a/pugl/detail/x11_gl.c b/pugl/detail/x11_gl.c
deleted file mode 100644
index b756355..0000000
--- a/pugl/detail/x11_gl.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/*
- Copyright 2012-2020 David Robillard <d@drobilla.net>
-
- Permission to use, copy, modify, and/or distribute this software for any
- purpose with or without fee is hereby granted, provided that the above
- copyright notice and this permission notice appear in all copies.
-
- THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-/**
- @file x11_gl.c
- @brief OpenGL graphics backend for X11.
-*/
-
-#include "pugl/detail/stub.h"
-#include "pugl/detail/types.h"
-#include "pugl/detail/x11.h"
-#include "pugl/pugl.h"
-#include "pugl/pugl_gl.h"
-
-#include <GL/glx.h>
-#include <X11/X.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-typedef struct {
- GLXFBConfig fb_config;
- GLXContext ctx;
-} PuglX11GlSurface;
-
-static int
-puglX11GlHintValue(const int value)
-{
- return value == PUGL_DONT_CARE ? (int)GLX_DONT_CARE : value;
-}
-
-static int
-puglX11GlGetAttrib(Display* const display,
- GLXFBConfig fb_config,
- const int attrib)
-{
- int value = 0;
- glXGetFBConfigAttrib(display, fb_config, attrib, &value);
- return value;
-}
-
-static PuglStatus
-puglX11GlConfigure(PuglView* view)
-{
- PuglInternals* const impl = view->impl;
- const int screen = impl->screen;
- Display* const display = impl->display;
-
- PuglX11GlSurface* const surface =
- (PuglX11GlSurface*)calloc(1, sizeof(PuglX11GlSurface));
- impl->surface = surface;
-
- const int attrs[] = {
- GLX_X_RENDERABLE, True,
- GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR,
- GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
- GLX_RENDER_TYPE, GLX_RGBA_BIT,
- GLX_SAMPLES, puglX11GlHintValue(view->hints[PUGL_SAMPLES]),
- GLX_RED_SIZE, puglX11GlHintValue(view->hints[PUGL_RED_BITS]),
- GLX_GREEN_SIZE, puglX11GlHintValue(view->hints[PUGL_GREEN_BITS]),
- GLX_BLUE_SIZE, puglX11GlHintValue(view->hints[PUGL_BLUE_BITS]),
- GLX_ALPHA_SIZE, puglX11GlHintValue(view->hints[PUGL_ALPHA_BITS]),
- GLX_DEPTH_SIZE, puglX11GlHintValue(view->hints[PUGL_DEPTH_BITS]),
- GLX_STENCIL_SIZE, puglX11GlHintValue(view->hints[PUGL_STENCIL_BITS]),
- GLX_DOUBLEBUFFER, puglX11GlHintValue(view->hints[PUGL_DOUBLE_BUFFER]),
- None
- };
-
- int n_fbc = 0;
- GLXFBConfig* fbc = glXChooseFBConfig(display, screen, attrs, &n_fbc);
- if (n_fbc <= 0) {
- return PUGL_CREATE_CONTEXT_FAILED;
- }
-
- surface->fb_config = fbc[0];
- impl->vi = glXGetVisualFromFBConfig(impl->display, fbc[0]);
-
- view->hints[PUGL_RED_BITS] = puglX11GlGetAttrib(
- display, fbc[0], GLX_RED_SIZE);
- view->hints[PUGL_GREEN_BITS] = puglX11GlGetAttrib(
- display, fbc[0], GLX_GREEN_SIZE);
- view->hints[PUGL_BLUE_BITS] = puglX11GlGetAttrib(
- display, fbc[0], GLX_BLUE_SIZE);
- view->hints[PUGL_ALPHA_BITS] = puglX11GlGetAttrib(
- display, fbc[0], GLX_ALPHA_SIZE);
- view->hints[PUGL_DEPTH_BITS] = puglX11GlGetAttrib(
- display, fbc[0], GLX_DEPTH_SIZE);
- view->hints[PUGL_STENCIL_BITS] = puglX11GlGetAttrib(
- display, fbc[0], GLX_STENCIL_SIZE);
- view->hints[PUGL_SAMPLES] = puglX11GlGetAttrib(
- display, fbc[0], GLX_SAMPLES);
- view->hints[PUGL_DOUBLE_BUFFER] = puglX11GlGetAttrib(
- display, fbc[0], GLX_DOUBLEBUFFER);
-
- char msg[256];
-
- snprintf(
- msg,
- sizeof(msg),
- "Using visual 0x%lX: R=%d G=%d B=%d A=%d D=%d DOUBLE=%d SAMPLES=%d\n",
- impl->vi->visualid,
- puglX11GlGetAttrib(display, fbc[0], GLX_RED_SIZE),
- puglX11GlGetAttrib(display, fbc[0], GLX_GREEN_SIZE),
- puglX11GlGetAttrib(display, fbc[0], GLX_BLUE_SIZE),
- puglX11GlGetAttrib(display, fbc[0], GLX_ALPHA_SIZE),
- puglX11GlGetAttrib(display, fbc[0], GLX_DEPTH_SIZE),
- puglX11GlGetAttrib(display, fbc[0], GLX_DOUBLEBUFFER),
- puglX11GlGetAttrib(display, fbc[0], GLX_SAMPLES));
-
- view->world->logFunc(view->world, PUGL_LOG_LEVEL_INFO, msg);
-
- XFree(fbc);
-
- return PUGL_SUCCESS;
-}
-
-static PuglStatus
-puglX11GlEnter(PuglView* view, const PuglEventExpose* PUGL_UNUSED(expose))
-{
- PuglX11GlSurface* surface = (PuglX11GlSurface*)view->impl->surface;
- glXMakeCurrent(view->impl->display, view->impl->win, surface->ctx);
- return PUGL_SUCCESS;
-}
-
-static PuglStatus
-puglX11GlLeave(PuglView* view, const PuglEventExpose* expose)
-{
- if (expose && view->hints[PUGL_DOUBLE_BUFFER]) {
- glXSwapBuffers(view->impl->display, view->impl->win);
- }
-
- glXMakeCurrent(view->impl->display, None, NULL);
-
- return PUGL_SUCCESS;
-}
-
-static PuglStatus
-puglX11GlCreate(PuglView* view)
-{
- PuglInternals* const impl = view->impl;
- PuglX11GlSurface* const surface = (PuglX11GlSurface*)impl->surface;
- Display* const display = impl->display;
- GLXFBConfig fb_config = surface->fb_config;
-
- const int ctx_attrs[] = {
- GLX_CONTEXT_MAJOR_VERSION_ARB, view->hints[PUGL_CONTEXT_VERSION_MAJOR],
- GLX_CONTEXT_MINOR_VERSION_ARB, view->hints[PUGL_CONTEXT_VERSION_MINOR],
- GLX_CONTEXT_FLAGS_ARB, (view->hints[PUGL_USE_DEBUG_CONTEXT]
- ? GLX_CONTEXT_DEBUG_BIT_ARB
- : 0),
- GLX_CONTEXT_PROFILE_MASK_ARB, (view->hints[PUGL_USE_COMPAT_PROFILE]
- ? GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB
- : GLX_CONTEXT_CORE_PROFILE_BIT_ARB),
- 0};
-
- PFNGLXCREATECONTEXTATTRIBSARBPROC create_context =
- (PFNGLXCREATECONTEXTATTRIBSARBPROC)glXGetProcAddress(
- (const uint8_t*)"glXCreateContextAttribsARB");
-
- PFNGLXSWAPINTERVALEXTPROC glXSwapIntervalEXT =
- (PFNGLXSWAPINTERVALEXTPROC) glXGetProcAddress(
- (const uint8_t*)"glXSwapIntervalEXT");
-
- surface->ctx = create_context(display, fb_config, 0, True, ctx_attrs);
- if (!surface->ctx) {
- surface->ctx =
- glXCreateNewContext(display, fb_config, GLX_RGBA_TYPE, 0, True);
- }
-
- if (!surface->ctx) {
- return PUGL_CREATE_CONTEXT_FAILED;
- }
-
- const int swapInterval = view->hints[PUGL_SWAP_INTERVAL];
- if (glXSwapIntervalEXT && swapInterval != PUGL_DONT_CARE) {
- puglX11GlEnter(view, NULL);
- glXSwapIntervalEXT(display, impl->win, swapInterval);
- puglX11GlLeave(view, NULL);
- }
-
- glXGetConfig(impl->display,
- impl->vi,
- GLX_DOUBLEBUFFER,
- &view->hints[PUGL_DOUBLE_BUFFER]);
-
- glXQueryDrawable(display,
- impl->win,
- GLX_SWAP_INTERVAL_EXT,
- (unsigned int*)&view->hints[PUGL_SWAP_INTERVAL]);
-
- return PUGL_SUCCESS;
-}
-
-static PuglStatus
-puglX11GlDestroy(PuglView* view)
-{
- PuglX11GlSurface* surface = (PuglX11GlSurface*)view->impl->surface;
- if (surface) {
- glXDestroyContext(view->impl->display, surface->ctx);
- free(surface);
- view->impl->surface = NULL;
- }
- return PUGL_SUCCESS;
-}
-
-PuglGlFunc
-puglGetProcAddress(const char* name)
-{
- return glXGetProcAddress((const uint8_t*)name);
-}
-
-const PuglBackend* puglGlBackend(void)
-{
- static const PuglBackend backend = {puglX11GlConfigure,
- puglX11GlCreate,
- puglX11GlDestroy,
- puglX11GlEnter,
- puglX11GlLeave,
- puglStubGetContext};
-
- return &backend;
-}
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-28 05:10:23 +0000