/* Copyright 2012-2019 David Robillard 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 pugl_internal.h Private platform-independent definitions. Note that this file contains function definitions, so it must be compiled into the final binary exactly once. Each platform specific implementation file including it once should achieve this. */ #include "pugl/pugl.h" #include "pugl/pugl_internal_types.h" #include #include PuglInternals* puglInitInternals(void); static PuglHints puglDefaultHints(void) { static const PuglHints hints = { 2, 0, 4, 4, 4, 4, 24, 8, 0, true, true, false }; return hints; } PuglView* puglInit(int* PUGL_UNUSED(pargc), char** PUGL_UNUSED(argv)) { PuglView* view = (PuglView*)calloc(1, sizeof(PuglView)); if (!view) { return NULL; } PuglInternals* impl = puglInitInternals(); if (!impl) { return NULL; } view->hints = puglDefaultHints(); view->impl = impl; view->width = 640; view->height = 480; view->start_time = puglGetTime(view); return view; } void puglInitWindowHint(PuglView* view, PuglWindowHint hint, int value) { switch (hint) { case PUGL_USE_COMPAT_PROFILE: view->hints.use_compat_profile = value; break; case PUGL_CONTEXT_VERSION_MAJOR: view->hints.context_version_major = value; break; case PUGL_CONTEXT_VERSION_MINOR: view->hints.context_version_minor = value; break; case PUGL_RED_BITS: view->hints.red_bits = value; break; case PUGL_GREEN_BITS: view->hints.green_bits = value; break; case PUGL_BLUE_BITS: view->hints.blue_bits = value; break; case PUGL_ALPHA_BITS: view->hints.alpha_bits = value; break; case PUGL_DEPTH_BITS: view->hints.depth_bits = value; break; case PUGL_STENCIL_BITS: view->hints.stencil_bits = value; break; case PUGL_SAMPLES: view->hints.samples = value; break; case PUGL_DOUBLE_BUFFER: view->hints.double_buffer = value; break; case PUGL_RESIZABLE: view->hints.resizable = value; break; } } void puglInitWindowSize(PuglView* view, int width, int height) { view->width = width; view->height = height; } void puglInitWindowMinSize(PuglView* view, int width, int height) { view->min_width = width; view->min_height = height; } void puglInitWindowAspectRatio(PuglView* view, int min_x, int min_y, int max_x, int max_y) { view->min_aspect_x = min_x; view->min_aspect_y = min_y; view->max_aspect_x = max_x; view->max_aspect_y = max_y; } void puglInitWindowClass(PuglView* view, const char* name) { const size_t len = strlen(name); free(view->windowClass); view->windowClass = (char*)calloc(1, len + 1); memcpy(view->windowClass, name, len); } void puglInitWindowParent(PuglView* view, PuglNativeWindow parent) { view->parent = parent; } void puglInitResizable(PuglView* view, bool resizable) { view->hints.resizable = resizable; } void puglInitTransientFor(PuglView* view, uintptr_t parent) { view->transient_parent = parent; } int puglInitBackend(PuglView* view, const PuglBackend* backend) { view->backend = backend; return 0; } void puglSetHandle(PuglView* view, PuglHandle handle) { view->handle = handle; } PuglHandle puglGetHandle(PuglView* view) { return view->handle; } bool puglGetVisible(PuglView* view) { return view->visible; } void puglGetSize(PuglView* view, int* width, int* height) { *width = view->width; *height = view->height; } void* puglGetContext(PuglView* view) { return view->backend->getContext(view); } void puglEnterContext(PuglView* view, bool drawing) { view->backend->enter(view, drawing); } void puglLeaveContext(PuglView* view, bool drawing) { view->backend->leave(view, drawing); } void puglIgnoreKeyRepeat(PuglView* view, bool ignore) { view->ignoreKeyRepeat = ignore; } void puglSetEventFunc(PuglView* view, PuglEventFunc eventFunc) { view->eventFunc = eventFunc; } /** Return the code point for buf, or the replacement character on error. */ static inline uint32_t puglDecodeUTF8(const uint8_t* buf) { #define FAIL_IF(cond) do { if (cond) return 0xFFFD; } while (0) // http://en.wikipedia.org/wiki/UTF-8 if (buf[0] < 0x80) { return buf[0]; } else if (buf[0] < 0xC2) { return 0xFFFD; } else if (buf[0] < 0xE0) { FAIL_IF((buf[1] & 0xC0) != 0x80); return (buf[0] << 6) + buf[1] - 0x3080u; } else if (buf[0] < 0xF0) { FAIL_IF((buf[1] & 0xC0) != 0x80); FAIL_IF(buf[0] == 0xE0 && buf[1] < 0xA0); FAIL_IF((buf[2] & 0xC0) != 0x80); return (buf[0] << 12) + (buf[1] << 6) + buf[2] - 0xE2080u; } else if (buf[0] < 0xF5) { FAIL_IF((buf[1] & 0xC0) != 0x80); FAIL_IF(buf[0] == 0xF0 && buf[1] < 0x90); FAIL_IF(buf[0] == 0xF4 && buf[1] >= 0x90); FAIL_IF((buf[2] & 0xC0) != 0x80); FAIL_IF((buf[3] & 0xC0) != 0x80); return ((buf[0] << 18) + (buf[1] << 12) + (buf[2] << 6) + buf[3] - 0x3C82080u); } return 0xFFFD; } static void puglDispatchEvent(PuglView* view, const PuglEvent* event) { switch (event->type) { case PUGL_NOTHING: break; case PUGL_CONFIGURE: view->width = (int)event->configure.width; view->height = (int)event->configure.height; puglEnterContext(view, false); view->eventFunc(view, event); puglLeaveContext(view, false); break; case PUGL_EXPOSE: if (event->expose.count == 0) { puglEnterContext(view, true); view->eventFunc(view, event); puglLeaveContext(view, true); } break; default: view->eventFunc(view, event); } }