Migrate most GL from context to driver.

Change-Id: I5cba3a6e879d2e9332fc667a1061a5312fcf14ba

4 files changed, 421 insertions, 1 deletions

diff --git a/driver/rsdCore.cpp b/driver/rsdCore.cpp
index 00d62ba6..75f4d6b0 100644
--- a/driver/rsdCore.cpp
+++ b/driver/rsdCore.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 The Android Open Source Project
+ * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,7 @@
 
 #include "rsdCore.h"
 #include "rsdBcc.h"
+#include "rsdGL.h"
 #include "rsdProgramStore.h"
 #include "rsdProgramRaster.h"
 
@@ -37,6 +38,11 @@ static void Shutdown(Context *rsc);
 static void SetPriority(const Context *rsc, int32_t priority);
 
 static RsdHalFunctions FunctionTable = {
+    rsdGLInit,
+    rsdGLShutdown,
+    rsdGLSetSurface,
+    rsdGLSwap,
+
     Shutdown,
     NULL,
     SetPriority,
diff --git a/driver/rsdCore.h b/driver/rsdCore.h
index 02b2fbc5..e37698b7 100644
--- a/driver/rsdCore.h
+++ b/driver/rsdCore.h
@@ -23,6 +23,7 @@
 #include "rsMutex.h"
 #include "rsSignal.h"
 
+#include "rsdGL.h"
 
 typedef void (* InvokeFunc_t)(void);
 typedef void (*WorkerCallback_t)(void *usr, uint32_t idx);
@@ -45,6 +46,8 @@ typedef struct RsHalRec {
     };
     Workers mWorkers;
     bool mExit;
+
+    RsdGL gl;
 } RsHal;
 
 
diff --git a/driver/rsdGL.cpp b/driver/rsdGL.cpp
new file mode 100644
index 00000000..86dfa0fa
--- /dev/null
+++ b/driver/rsdGL.cpp
@@ -0,0 +1,333 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/PixelFormat.h>
+#include <ui/EGLUtils.h>
+#include <ui/egl/android_natives.h>
+
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sched.h>
+
+#include <cutils/properties.h>
+
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+//#include <cutils/sched_policy.h>
+//#include <sys/syscall.h>
+#include <string.h>
+
+
+#include "rsdCore.h"
+#include "rsdGL.h"
+
+#include <malloc.h>
+#include "rsContext.h"
+
+using namespace android;
+using namespace android::renderscript;
+
+static int32_t gGLContextCount = 0;
+
+static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE) {
+    if (returnVal != EGL_TRUE) {
+        fprintf(stderr, "%s() returned %d\n", op, returnVal);
+    }
+
+    for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
+            = eglGetError()) {
+        fprintf(stderr, "after %s() eglError %s (0x%x)\n", op, EGLUtils::strerror(error),
+                error);
+    }
+}
+
+static void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {
+
+#define X(VAL) {VAL, #VAL}
+    struct {EGLint attribute; const char* name;} names[] = {
+    X(EGL_BUFFER_SIZE),
+    X(EGL_ALPHA_SIZE),
+    X(EGL_BLUE_SIZE),
+    X(EGL_GREEN_SIZE),
+    X(EGL_RED_SIZE),
+    X(EGL_DEPTH_SIZE),
+    X(EGL_STENCIL_SIZE),
+    X(EGL_CONFIG_CAVEAT),
+    X(EGL_CONFIG_ID),
+    X(EGL_LEVEL),
+    X(EGL_MAX_PBUFFER_HEIGHT),
+    X(EGL_MAX_PBUFFER_PIXELS),
+    X(EGL_MAX_PBUFFER_WIDTH),
+    X(EGL_NATIVE_RENDERABLE),
+    X(EGL_NATIVE_VISUAL_ID),
+    X(EGL_NATIVE_VISUAL_TYPE),
+    X(EGL_SAMPLES),
+    X(EGL_SAMPLE_BUFFERS),
+    X(EGL_SURFACE_TYPE),
+    X(EGL_TRANSPARENT_TYPE),
+    X(EGL_TRANSPARENT_RED_VALUE),
+    X(EGL_TRANSPARENT_GREEN_VALUE),
+    X(EGL_TRANSPARENT_BLUE_VALUE),
+    X(EGL_BIND_TO_TEXTURE_RGB),
+    X(EGL_BIND_TO_TEXTURE_RGBA),
+    X(EGL_MIN_SWAP_INTERVAL),
+    X(EGL_MAX_SWAP_INTERVAL),
+    X(EGL_LUMINANCE_SIZE),
+    X(EGL_ALPHA_MASK_SIZE),
+    X(EGL_COLOR_BUFFER_TYPE),
+    X(EGL_RENDERABLE_TYPE),
+    X(EGL_CONFORMANT),
+   };
+#undef X
+
+    for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
+        EGLint value = -1;
+        EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
+        EGLint error = eglGetError();
+        if (returnVal && error == EGL_SUCCESS) {
+            LOGV(" %s: %d (0x%x)", names[j].name, value, value);
+        }
+    }
+}
+
+static void DumpDebug(RsHal *dc) {
+    LOGE(" EGL ver %i %i", dc->gl.egl.majorVersion, dc->gl.egl.minorVersion);
+    LOGE(" EGL context %p  surface %p,  Display=%p", dc->gl.egl.context, dc->gl.egl.surface,
+         dc->gl.egl.display);
+    LOGE(" GL vendor: %s", dc->gl.gl.vendor);
+    LOGE(" GL renderer: %s", dc->gl.gl.renderer);
+    LOGE(" GL Version: %s", dc->gl.gl.version);
+    LOGE(" GL Extensions: %s", dc->gl.gl.extensions);
+    LOGE(" GL int Versions %i %i", dc->gl.gl.majorVersion, dc->gl.gl.minorVersion);
+
+    LOGV("MAX Textures %i, %i  %i", dc->gl.gl.maxVertexTextureUnits,
+         dc->gl.gl.maxFragmentTextureImageUnits, dc->gl.gl.maxTextureImageUnits);
+    LOGV("MAX Attribs %i", dc->gl.gl.maxVertexAttribs);
+    LOGV("MAX Uniforms %i, %i", dc->gl.gl.maxVertexUniformVectors,
+         dc->gl.gl.maxFragmentUniformVectors);
+    LOGV("MAX Varyings %i", dc->gl.gl.maxVaryingVectors);
+}
+
+void rsdGLShutdown(const Context *rsc) {
+    RsHal *dc = (RsHal *)rsc->mHal.drv;
+
+    LOGV("%p, deinitEGL", rsc);
+
+    if (dc->gl.egl.context != EGL_NO_CONTEXT) {
+        eglMakeCurrent(dc->gl.egl.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+        eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surfaceDefault);
+        if (dc->gl.egl.surface != EGL_NO_SURFACE) {
+            eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
+        }
+        eglDestroyContext(dc->gl.egl.display, dc->gl.egl.context);
+        checkEglError("eglDestroyContext");
+    }
+
+    gGLContextCount--;
+    if (!gGLContextCount) {
+        eglTerminate(dc->gl.egl.display);
+    }
+}
+
+bool rsdGLInit(const Context *rsc) {
+    RsHal *dc = (RsHal *)rsc->mHal.drv;
+
+    dc->gl.egl.numConfigs = -1;
+    EGLint configAttribs[128];
+    EGLint *configAttribsPtr = configAttribs;
+    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
+
+    memset(configAttribs, 0, sizeof(configAttribs));
+
+    configAttribsPtr[0] = EGL_SURFACE_TYPE;
+    configAttribsPtr[1] = EGL_WINDOW_BIT;
+    configAttribsPtr += 2;
+
+    configAttribsPtr[0] = EGL_RENDERABLE_TYPE;
+    configAttribsPtr[1] = EGL_OPENGL_ES2_BIT;
+    configAttribsPtr += 2;
+
+    if (rsc->mUserSurfaceConfig.depthMin > 0) {
+        configAttribsPtr[0] = EGL_DEPTH_SIZE;
+        configAttribsPtr[1] = rsc->mUserSurfaceConfig.depthMin;
+        configAttribsPtr += 2;
+    }
+
+    if (rsc->mDev->mForceSW) {
+        configAttribsPtr[0] = EGL_CONFIG_CAVEAT;
+        configAttribsPtr[1] = EGL_SLOW_CONFIG;
+        configAttribsPtr += 2;
+    }
+
+    configAttribsPtr[0] = EGL_NONE;
+    rsAssert(configAttribsPtr < (configAttribs + (sizeof(configAttribs) / sizeof(EGLint))));
+
+    LOGV("%p initEGL start", rsc);
+    dc->gl.egl.display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+    checkEglError("eglGetDisplay");
+
+    eglInitialize(dc->gl.egl.display, &dc->gl.egl.majorVersion, &dc->gl.egl.minorVersion);
+    checkEglError("eglInitialize");
+
+    PixelFormat pf = PIXEL_FORMAT_RGBA_8888;
+    if (rsc->mUserSurfaceConfig.alphaMin == 0) {
+        pf = PIXEL_FORMAT_RGBX_8888;
+    }
+
+    status_t err = EGLUtils::selectConfigForPixelFormat(dc->gl.egl.display, configAttribs,
+                                                        pf, &dc->gl.egl.config);
+    if (err) {
+       LOGE("%p, couldn't find an EGLConfig matching the screen format\n", rsc);
+    }
+    //if (props.mLogVisual) {
+        printEGLConfiguration(dc->gl.egl.display, dc->gl.egl.config);
+    //}
+
+    dc->gl.egl.context = eglCreateContext(dc->gl.egl.display, dc->gl.egl.config,
+                                          EGL_NO_CONTEXT, context_attribs2);
+    checkEglError("eglCreateContext");
+    if (dc->gl.egl.context == EGL_NO_CONTEXT) {
+        LOGE("%p, eglCreateContext returned EGL_NO_CONTEXT", rsc);
+        return false;
+    }
+    gGLContextCount++;
+
+
+    EGLint pbuffer_attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE };
+    dc->gl.egl.surfaceDefault = eglCreatePbufferSurface(dc->gl.egl.display, dc->gl.egl.config,
+                                                        pbuffer_attribs);
+    checkEglError("eglCreatePbufferSurface");
+    if (dc->gl.egl.surfaceDefault == EGL_NO_SURFACE) {
+        LOGE("eglCreatePbufferSurface returned EGL_NO_SURFACE");
+        rsdGLShutdown(rsc);
+        return false;
+    }
+
+    EGLBoolean ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
+                                    dc->gl.egl.surfaceDefault, dc->gl.egl.context);
+    if (ret == EGL_FALSE) {
+        LOGE("eglMakeCurrent returned EGL_FALSE");
+        checkEglError("eglMakeCurrent", ret);
+        rsdGLShutdown(rsc);
+        return false;
+    }
+
+    dc->gl.gl.version = glGetString(GL_VERSION);
+    dc->gl.gl.vendor = glGetString(GL_VENDOR);
+    dc->gl.gl.renderer = glGetString(GL_RENDERER);
+    dc->gl.gl.extensions = glGetString(GL_EXTENSIONS);
+
+    //LOGV("EGL Version %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
+    //LOGV("GL Version %s", mGL.mVersion);
+    //LOGV("GL Vendor %s", mGL.mVendor);
+    //LOGV("GL Renderer %s", mGL.mRenderer);
+    //LOGV("GL Extensions %s", mGL.mExtensions);
+
+    const char *verptr = NULL;
+    if (strlen((const char *)dc->gl.gl.version) > 9) {
+        if (!memcmp(dc->gl.gl.version, "OpenGL ES-CM", 12)) {
+            verptr = (const char *)dc->gl.gl.version + 12;
+        }
+        if (!memcmp(dc->gl.gl.version, "OpenGL ES ", 10)) {
+            verptr = (const char *)dc->gl.gl.version + 9;
+        }
+    }
+
+    if (!verptr) {
+        LOGE("Error, OpenGL ES Lite not supported");
+        rsdGLShutdown(rsc);
+        return false;
+    } else {
+        sscanf(verptr, " %i.%i", &dc->gl.gl.majorVersion, &dc->gl.gl.minorVersion);
+    }
+
+    glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &dc->gl.gl.maxVertexAttribs);
+    glGetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &dc->gl.gl.maxVertexUniformVectors);
+    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxVertexTextureUnits);
+
+    glGetIntegerv(GL_MAX_VARYING_VECTORS, &dc->gl.gl.maxVaryingVectors);
+    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxTextureImageUnits);
+
+    glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &dc->gl.gl.maxFragmentTextureImageUnits);
+    glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &dc->gl.gl.maxFragmentUniformVectors);
+
+    dc->gl.gl.OES_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
+                                                "GL_OES_texture_npot");
+    dc->gl.gl.GL_IMG_texture_npot = NULL != strstr((const char *)dc->gl.gl.extensions,
+                                                   "GL_IMG_texture_npot");
+    dc->gl.gl.GL_NV_texture_npot_2D_mipmap = NULL != strstr((const char *)dc->gl.gl.extensions,
+                                                            "GL_NV_texture_npot_2D_mipmap");
+    dc->gl.gl.EXT_texture_max_aniso = 1.0f;
+    bool hasAniso = NULL != strstr((const char *)dc->gl.gl.extensions,
+                                   "GL_EXT_texture_filter_anisotropic");
+    if (hasAniso) {
+        glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &dc->gl.gl.EXT_texture_max_aniso);
+    }
+
+    DumpDebug(dc);
+
+    LOGV("initGLThread end %p", rsc);
+    return true;
+}
+
+
+bool rsdGLSetSurface(const Context *rsc, uint32_t w, uint32_t h, ANativeWindow *sur) {
+    RsHal *dc = (RsHal *)rsc->mHal.drv;
+
+    EGLBoolean ret;
+    // WAR: Some drivers fail to handle 0 size surfaces correcntly.
+    // Use the pbuffer to avoid this pitfall.
+    if ((dc->gl.egl.surface != NULL) || (w == 0) || (h == 0)) {
+        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surfaceDefault,
+                             dc->gl.egl.surfaceDefault, dc->gl.egl.context);
+        checkEglError("eglMakeCurrent", ret);
+
+        ret = eglDestroySurface(dc->gl.egl.display, dc->gl.egl.surface);
+        checkEglError("eglDestroySurface", ret);
+
+        dc->gl.egl.surface = NULL;
+        dc->gl.width = 1;
+        dc->gl.height = 1;
+    }
+
+    dc->gl.wndSurface = sur;
+    if (dc->gl.wndSurface != NULL) {
+        dc->gl.width = w;
+        dc->gl.height = h;
+
+        dc->gl.egl.surface = eglCreateWindowSurface(dc->gl.egl.display, dc->gl.egl.config,
+                                                    dc->gl.wndSurface, NULL);
+        checkEglError("eglCreateWindowSurface");
+        if (dc->gl.egl.surface == EGL_NO_SURFACE) {
+            LOGE("eglCreateWindowSurface returned EGL_NO_SURFACE");
+        }
+
+        ret = eglMakeCurrent(dc->gl.egl.display, dc->gl.egl.surface,
+                             dc->gl.egl.surface, dc->gl.egl.context);
+        checkEglError("eglMakeCurrent", ret);
+    }
+    return true;
+}
+
+void rsdGLSwap(const android::renderscript::Context *rsc) {
+    RsHal *dc = (RsHal *)rsc->mHal.drv;
+    eglSwapBuffers(dc->gl.egl.display, dc->gl.egl.surface);
+}
+
diff --git a/driver/rsdGL.h b/driver/rsdGL.h
new file mode 100644
index 00000000..246931f8
--- /dev/null
+++ b/driver/rsdGL.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RSD_GL_H
+#define RSD_GL_H
+
+#include <rs_hal.h>
+
+
+
+typedef void (* InvokeFunc_t)(void);
+typedef void (*WorkerCallback_t)(void *usr, uint32_t idx);
+
+typedef struct RsdGLRec {
+    struct {
+        EGLint numConfigs;
+        EGLint majorVersion;
+        EGLint minorVersion;
+        EGLConfig config;
+        EGLContext context;
+        EGLSurface surface;
+        EGLSurface surfaceDefault;
+        EGLDisplay display;
+    } egl;
+
+    struct {
+        const uint8_t * vendor;
+        const uint8_t * renderer;
+        const uint8_t * version;
+        const uint8_t * extensions;
+
+        uint32_t majorVersion;
+        uint32_t minorVersion;
+
+        int32_t maxVaryingVectors;
+        int32_t maxTextureImageUnits;
+
+        int32_t maxFragmentTextureImageUnits;
+        int32_t maxFragmentUniformVectors;
+
+        int32_t maxVertexAttribs;
+        int32_t maxVertexUniformVectors;
+        int32_t maxVertexTextureUnits;
+
+        bool OES_texture_npot;
+        bool GL_IMG_texture_npot;
+        bool GL_NV_texture_npot_2D_mipmap;
+        float EXT_texture_max_aniso;
+    } gl;
+
+    ANativeWindow *wndSurface;
+    uint32_t width;
+    uint32_t height;
+} RsdGL;
+
+
+
+bool rsdGLInit(const android::renderscript::Context *rsc);
+void rsdGLShutdown(const android::renderscript::Context *rsc);
+bool rsdGLSetSurface(const android::renderscript::Context *rsc,
+                     uint32_t w, uint32_t h, ANativeWindow *sur);
+void rsdGLSwap(const android::renderscript::Context *rsc);
+
+#endif
+