OpenGL tracing.

Enable with:

adb shell setprop debug.egl.trace 1

Change-Id: Icfbc795f5260141510975228e72234e9aab56a85

1 files changed, 247 insertions, 0 deletions

diff --git a/opengl/libs/EGL/trace.cpp b/opengl/libs/EGL/trace.cpp
new file mode 100644
index 0000000..48eeaff
--- /dev/null
+++ b/opengl/libs/EGL/trace.cpp
@@ -0,0 +1,247 @@
+/*
+ ** Copyright 2010, 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.
+ */
+
+#if EGL_TRACE
+
+#include <stdarg.h>
+#include <stdlib.h>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+
+#include <cutils/log.h>
+
+#include "hooks.h"
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+struct GLenumString {
+    GLenum e;
+    const char* s;
+};
+
+#undef GL_ENUM
+#define GL_ENUM(VAL,NAME) {VAL, #NAME},
+
+static GLenumString g_enumnames[] = {
+#include "enums.in"
+};
+#undef GL_ENUM
+
+static int compareGLEnum(const void* a, const void* b) {
+    return ((const GLenumString*) a)->e - ((const GLenumString*) b)->e;
+}
+
+static const char* GLEnumToString(GLenum e) {
+    GLenumString key = {e, ""};
+    const GLenumString* result = (const GLenumString*) bsearch(
+        &key, g_enumnames,
+        sizeof(g_enumnames) / sizeof(g_enumnames[0]),
+        sizeof(g_enumnames[0]), compareGLEnum);
+    if (result) {
+        return result->s;
+    }
+    return NULL;
+}
+
+static GLenumString g_bitfieldNames[] = {
+    {0x00004000, "GL_COLOR_BUFFER_BIT"},
+    {0x00000400, "GL_STENCIL_BUFFER_BIT"},
+    {0x00000100, "GL_DEPTH_BUFFER_BIT"}
+};
+
+
+static void TraceGLShaderSource(GLuint shader, GLsizei count,
+    const GLchar** string, const GLint* length) {
+    LOGD("const char* shaderSrc[] = {");
+    for (GLsizei i = 0; i < count; i++) {
+        const char* comma = i < count-1 ? "," : "";
+        const GLchar* s = string[i];
+        if (length) {
+            GLint len = length[i];
+            LOGD("    \"%*s\"%s", len, s, comma);
+        } else {
+            LOGD("    \"%s\"%s", s, comma);
+        }
+    }
+    LOGD("};");
+    if (length) {
+        LOGD("const GLint* shaderLength[] = {");
+        for (GLsizei i = 0; i < count; i++) {
+            const char* comma = i < count-1 ? "," : "";
+            GLint len = length[i];
+            LOGD("    \"%d\"%s", len, comma);
+        }
+        LOGD("};");
+        LOGD("glShaderSource(%u, %u, shaderSrc, shaderLength);",
+            shader, count);
+    } else {
+        LOGD("glShaderSource(%u, %u, shaderSrc, (const GLint*) 0);",
+            shader, count);
+    }
+}
+
+static void TraceGL(const char* name, int numArgs, ...) {
+    va_list argp;
+    va_start(argp, numArgs);
+    if (strcmp(name, "glShaderSource") == 0) {
+        va_arg(argp, const char*);
+        GLuint shader = va_arg(argp, GLuint);
+        va_arg(argp, const char*);
+        GLsizei count = va_arg(argp, GLsizei);
+        va_arg(argp, const char*);
+        const GLchar** string = (const GLchar**) va_arg(argp, void*);
+        va_arg(argp, const char*);
+        const GLint* length = (const GLint*) va_arg(argp, void*);
+        TraceGLShaderSource(shader, count, string, length);
+        va_end(argp);
+        return;
+    }
+    const int lineSize = 500;
+    char line[lineSize];
+    int line_index = 0;
+    #define APPEND(...) \
+        line_index += snprintf(line + line_index, lineSize-line_index, __VA_ARGS__);
+    APPEND("%s(", name);
+    for (int i = 0; i < numArgs; i++) {
+        if (i > 0) {
+            APPEND(", ");
+        }
+        const char* type = va_arg(argp, const char*);
+        bool isPtr = type[strlen(type)-1] == '*'
+            || strcmp(type, "GLeglImageOES") == 0;
+        if (isPtr) {
+            const void* arg = va_arg(argp, const void*);
+            APPEND("(%s) 0x%08x", type, (size_t) arg);
+        } else if (strcmp(type, "GLbitfield") == 0) {
+            size_t arg = va_arg(argp, size_t);
+            bool first = true;
+            for (size_t i = 0; i < sizeof(g_bitfieldNames) / sizeof(g_bitfieldNames[0]); i++) {
+                const GLenumString* b = &g_bitfieldNames[i];
+                if (b->e & arg) {
+                    if (first) {
+                        first = false;
+                    } else {
+                        APPEND(" | ");
+                    }
+                    APPEND("%s", b->s);
+                    arg &= ~b->e;
+                }
+            }
+            if (first || arg != 0) {
+                if (!first) {
+                    APPEND(" | ");
+                }
+                APPEND("0x%08x", arg);
+            }
+        } else if (strcmp(type, "GLboolean") == 0) {
+            int arg = va_arg(argp, int);
+            APPEND("%s", arg ? "GL_TRUE" : "GL_FALSE");
+        } else if (strcmp(type, "GLclampf") == 0) {
+            double arg = va_arg(argp, double);
+            APPEND("%g", arg);
+        } else if (strcmp(type, "GLenum") == 0) {
+            GLenum arg = va_arg(argp, int);
+            const char* s = GLEnumToString(arg);
+            if (s) {
+                APPEND("%s", s);
+            } else {
+                APPEND("0x%x", arg);
+            }
+        } else if (strcmp(type, "GLfixed") == 0) {
+            int arg = va_arg(argp, int);
+            APPEND("0x%08x", arg);
+        } else if (strcmp(type, "GLfloat") == 0) {
+            double arg = va_arg(argp, double);
+            APPEND("%g", arg);
+        } else if (strcmp(type, "GLint") == 0) {
+            int arg = va_arg(argp, int);
+            const char* s = NULL;
+            if (strcmp(name, "glTexParameteri") == 0) {
+                s = GLEnumToString(arg);
+            }
+            if (s) {
+                APPEND("%s", s);
+            } else {
+                APPEND("%d", arg);
+            }
+        } else if (strcmp(type, "GLintptr") == 0) {
+            int arg = va_arg(argp, unsigned int);
+            APPEND("%u", arg);
+        } else if (strcmp(type, "GLsizei") == 0) {
+            int arg = va_arg(argp, size_t);
+            APPEND("%u", arg);
+        } else if (strcmp(type, "GLsizeiptr") == 0) {
+            int arg = va_arg(argp, size_t);
+            APPEND("%u", arg);
+        } else if (strcmp(type, "GLuint") == 0) {
+            int arg = va_arg(argp, unsigned int);
+            APPEND("%u", arg);
+        } else {
+            APPEND("/* ??? %s */", type);
+            break;
+        }
+    }
+    APPEND(");");
+    line[lineSize-1] = '\0';
+    LOGD("%s", line);
+    va_end(argp);
+}
+
+#undef TRACE_GL_VOID
+#undef TRACE_GL
+
+#define TRACE_GL_VOID(_api, _args, _argList, ...)                         \
+static void Tracing_ ## _api _args {                                      \
+    TraceGL(#_api, __VA_ARGS__);                                          \
+    gl_hooks_t::gl_t const * const _c = &getGLTraceThreadSpecific()->gl;  \
+    _c->_api _argList;                                                    \
+}
+
+#define TRACE_GL(_type, _api, _args, _argList, ...)                       \
+static _type Tracing_ ## _api _args {                                     \
+    TraceGL(#_api, __VA_ARGS__);                                          \
+    gl_hooks_t::gl_t const * const _c = &getGLTraceThreadSpecific()->gl;  \
+    return _c->_api _argList;                                             \
+}
+
+extern "C" {
+#include "../trace.in"
+}
+#undef TRACE_GL_VOID
+#undef TRACE_GL
+
+#define GL_ENTRY(_r, _api, ...) Tracing_ ## _api,
+
+EGLAPI gl_hooks_t gHooksTrace = {
+    {
+        #include "entries.in"
+    },
+    {
+        {0}
+    }
+};
+#undef GL_ENTRY
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+// ----------------------------------------------------------------------------
+
+#endif // EGL_TRACE