blob: 25704299c716a0dd82fc6d54c88aa2c1f92c0c1e [file] [log] [blame]
/* Copyright (C) 2011 The Android Open Source Project
**
** This software is licensed under the terms of the GNU General Public
** License version 2, as published by the Free Software Foundation, and
** may be copied, distributed, and modified under those terms.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
*/
#include "config-host.h"
#include "android/opengles.h"
#include <assert.h>
/* Declared in "android/globals.h" */
int android_gles_fast_pipes = 1;
#include "android/globals.h"
#include <android/utils/debug.h>
#include <android/utils/path.h>
#include <android/utils/bufprint.h>
#include <android/utils/dll.h>
// NOTE: The declarations below should be equivalent to those in
// <libOpenglRender/render_api_platform_types.h>
#ifdef _WIN32
#include <windows.h>
typedef HDC FBNativeDisplayType;
typedef HWND FBNativeWindowType;
#elif defined(__linux__)
// Really a Window, which is defined as 32-bit unsigned long on all platforms
// but we don't want to include the X11 headers here.
typedef uint32_t FBNativeWindowType;
#elif defined(__APPLE__)
typedef void* FBNativeWindowType;
#else
#warning "unsupported platform"
#endif
// NOTE: The declarations below should be equivalent to those in
// <libOpenglRender/render_api.h>
/* list of constants to be passed to setStreamMode */
#define STREAM_MODE_DEFAULT 0
#define STREAM_MODE_TCP 1
#define STREAM_MODE_UNIX 2
#define STREAM_MODE_PIPE 3
#define RENDERER_FUNCTIONS_LIST \
FUNCTION_(int, initLibrary, (void), ()) \
FUNCTION_(int, setStreamMode, (int mode), (mode)) \
FUNCTION_(int, initOpenGLRenderer, (int width, int height, char* addr, size_t addrLen), (width, height, addr, addrLen)) \
FUNCTION_VOID_(getHardwareStrings, (const char** vendors, const char** renderer, const char** version), (vendors, renderer, version)) \
FUNCTION_VOID_(setPostCallback, (OnPostFunc onPost, void* onPostContext), (onPost, onPostContext)) \
FUNCTION_(int, createOpenGLSubwindow, (FBNativeWindowType window, int x, int y, int width, int height, float zRot), (window, x, y, width, height, zRot)) \
FUNCTION_(int, destroyOpenGLSubwindow, (void), ()) \
FUNCTION_VOID_(setOpenGLDisplayRotation, (float zRot), (zRot)) \
FUNCTION_VOID_(repaintOpenGLDisplay, (void), ()) \
FUNCTION_(int, stopOpenGLRenderer, (void), ()) \
#include <stdio.h>
#include <stdlib.h>
#define D(...) VERBOSE_PRINT(init,__VA_ARGS__)
#define DD(...) VERBOSE_PRINT(gles,__VA_ARGS__)
/* Name of the GLES rendering library we're going to use */
#if UINTPTR_MAX == UINT32_MAX
#define RENDERER_LIB_NAME "libOpenglRender"
#elif UINTPTR_MAX == UINT64_MAX
#define RENDERER_LIB_NAME "lib64OpenglRender"
#else
#error Unknown UINTPTR_MAX
#endif
// Define the corresponding function pointers.
#define FUNCTION_(ret, name, sig, params) \
static ret (*name) sig = NULL;
#define FUNCTION_VOID_(name, sig, params) \
static void (*name) sig = NULL;
RENDERER_FUNCTIONS_LIST
#undef FUNCTION_
#undef FUNCTION_VOID_
// Define a function that initializes the function pointers by looking up
// the symbols from the shared library.
static int
initOpenglesEmulationFuncs(ADynamicLibrary* rendererLib)
{
void* symbol;
char* error;
#define FUNCTION_(ret, name, sig, params) \
symbol = adynamicLibrary_findSymbol(rendererLib, #name, &error); \
if (symbol != NULL) { \
name = symbol; \
} else { \
derror("GLES emulation: Could not find required symbol (%s): %s", #name, error); \
free(error); \
return -1; \
}
#define FUNCTION_VOID_(name, sig, params) FUNCTION_(void, name, sig, params)
RENDERER_FUNCTIONS_LIST
#undef FUNCTION_VOID_
#undef FUNCTION_
return 0;
}
#ifndef CONFIG_STANDALONE_UI
/* Defined in android/hw-pipe-net.c */
extern int android_init_opengles_pipes(void);
#endif
static ADynamicLibrary* rendererLib;
static int rendererStarted;
static char rendererAddress[256];
int
android_initOpenglesEmulation(void)
{
char* error = NULL;
if (rendererLib != NULL)
return 0;
D("Initializing hardware OpenGLES emulation support");
rendererLib = adynamicLibrary_open(RENDERER_LIB_NAME, &error);
if (rendererLib == NULL) {
derror("Could not load OpenGLES emulation library: %s", error);
return -1;
}
#ifndef CONFIG_STANDALONE_UI
android_init_opengles_pipes();
#endif
/* Resolve the functions */
if (initOpenglesEmulationFuncs(rendererLib) < 0) {
derror("OpenGLES emulation library mismatch. Be sure to use the correct version!");
goto BAD_EXIT;
}
if (!initLibrary()) {
derror("OpenGLES initialization failed!");
goto BAD_EXIT;
}
if (android_gles_fast_pipes) {
#ifdef _WIN32
/* XXX: NEED Win32 pipe implementation */
setStreamMode(STREAM_MODE_TCP);
#else
setStreamMode(STREAM_MODE_UNIX);
#endif
} else {
setStreamMode(STREAM_MODE_TCP);
}
return 0;
BAD_EXIT:
derror("OpenGLES emulation library could not be initialized!");
adynamicLibrary_close(rendererLib);
rendererLib = NULL;
return -1;
}
int
android_startOpenglesRenderer(int width, int height)
{
if (!rendererLib) {
D("Can't start OpenGLES renderer without support libraries");
return -1;
}
if (rendererStarted) {
return 0;
}
if (!initOpenGLRenderer(width, height, rendererAddress, sizeof(rendererAddress))) {
D("Can't start OpenGLES renderer?");
return -1;
}
rendererStarted = 1;
return 0;
}
void
android_setPostCallback(OnPostFunc onPost, void* onPostContext)
{
if (rendererLib) {
setPostCallback(onPost, onPostContext);
}
}
static void strncpy_safe(char* dst, const char* src, size_t n)
{
strncpy(dst, src, n);
dst[n-1] = '\0';
}
static void extractBaseString(char* dst, const char* src, size_t dstSize)
{
const char* begin = strchr(src, '(');
const char* end = strrchr(src, ')');
if (!begin || !end) {
strncpy_safe(dst, src, dstSize);
return;
}
begin += 1;
// "foo (bar)"
// ^ ^
// b e
// = 5 8
// substring with NUL-terminator is end-begin+1 bytes
if (end - begin + 1 > dstSize) {
end = begin + dstSize - 1;
}
strncpy_safe(dst, begin, end - begin + 1);
}
void
android_getOpenglesHardwareStrings(char* vendor, size_t vendorBufSize,
char* renderer, size_t rendererBufSize,
char* version, size_t versionBufSize)
{
const char *vendorSrc, *rendererSrc, *versionSrc;
assert(vendorBufSize > 0 && rendererBufSize > 0 && versionBufSize > 0);
assert(vendor != NULL && renderer != NULL && version != NULL);
if (!rendererStarted) {
D("Can't get OpenGL ES hardware strings when renderer not started");
vendor[0] = renderer[0] = version[0] = '\0';
return;
}
getHardwareStrings(&vendorSrc, &rendererSrc, &versionSrc);
if (!vendorSrc) vendorSrc = "";
if (!rendererSrc) rendererSrc = "";
if (!versionSrc) versionSrc = "";
/* Special case for the default ES to GL translators: extract the strings
* of the underlying OpenGL implementation. */
if (strncmp(vendorSrc, "Google", 6) == 0 &&
strncmp(rendererSrc, "Android Emulator OpenGL ES Translator", 37) == 0) {
extractBaseString(vendor, vendorSrc, vendorBufSize);
extractBaseString(renderer, rendererSrc, rendererBufSize);
extractBaseString(version, versionSrc, versionBufSize);
} else {
strncpy_safe(vendor, vendorSrc, vendorBufSize);
strncpy_safe(renderer, rendererSrc, rendererBufSize);
strncpy_safe(version, versionSrc, versionBufSize);
}
}
void
android_stopOpenglesRenderer(void)
{
if (rendererStarted) {
stopOpenGLRenderer();
rendererStarted = 0;
}
}
int
android_showOpenglesWindow(void* window, int x, int y, int width, int height, float rotation)
{
if (rendererStarted) {
int success = createOpenGLSubwindow((FBNativeWindowType)(uintptr_t)window, x, y, width, height, rotation);
return success ? 0 : -1;
} else {
return -1;
}
}
int
android_hideOpenglesWindow(void)
{
if (rendererStarted) {
int success = destroyOpenGLSubwindow();
return success ? 0 : -1;
} else {
return -1;
}
}
void
android_redrawOpenglesWindow(void)
{
if (rendererStarted) {
repaintOpenGLDisplay();
}
}
void
android_gles_server_path(char* buff, size_t buffsize)
{
strncpy_safe(buff, rendererAddress, buffsize);
}