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Commit 6132b370 authored by Jack Palevich's avatar Jack Palevich
Browse files

Trace glUniformXXv and glUniformMatrixXfv calls.

Change-Id: I653021d2174fa1a7343d10b0fd2c29b3e5147be6
parent 182782f7
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+138 −30
Original line number Diff line number Diff line
@@ -61,12 +61,38 @@ static const char* GLEnumToString(GLenum e) {
    return NULL;
}

static const char* GLbooleanToString(GLboolean arg) {
    return arg ? "GL_TRUE" : "GL_FALSE";
}

static GLenumString g_bitfieldNames[] = {
    {0x00004000, "GL_COLOR_BUFFER_BIT"},
    {0x00000400, "GL_STENCIL_BUFFER_BIT"},
    {0x00000100, "GL_DEPTH_BUFFER_BIT"}
};

class StringBuilder {
    static const int lineSize = 500;
    char line[lineSize];
    int line_index;
public:
    StringBuilder() {
        line_index = 0;
        line[0] = '\0';
    }
    void append(const char* fmt, ...) {
        va_list argp;
        va_start(argp, fmt);
        line_index += vsnprintf(line + line_index, lineSize-line_index, fmt, argp);
        va_end(argp);
    }
    const char* getString() {
        line_index = 0;
        line[lineSize-1] = '\0';
        return line;
    }
};


static void TraceGLShaderSource(GLuint shader, GLsizei count,
    const GLchar** string, const GLint* length) {
@@ -98,10 +124,62 @@ static void TraceGLShaderSource(GLuint shader, GLsizei count,
    }
}

static void TraceValue(int elementCount, char type,
        GLsizei chunkCount, GLsizei chunkSize, const void* value) {
    StringBuilder stringBuilder;
    GLsizei count = chunkCount * chunkSize;
    bool isFloat = type == 'f';
    const char* typeString = isFloat ? "GLfloat" : "GLint";
    LOGD("const %s value[] = {", typeString);
    for (GLsizei i = 0; i < count; i++) {
        StringBuilder builder;
        builder.append("    ");
        for (int e = 0; e < elementCount; e++) {
            const char* comma = ", ";
            if (e == elementCount-1) {
                if (i == count - 1) {
                    comma = "";
                } else {
                    comma = ",";
                }
            }
            if (isFloat) {
                builder.append("%g%s", * (GLfloat*) value, comma);
                value = (void*) (((GLfloat*) value) + 1);
            } else {
                builder.append("%d%s", * (GLint*) value, comma);
                value = (void*) (((GLint*) value) + 1);
            }
        }
        LOGD("%s", builder.getString());
        if (chunkSize > 1 && i < count-1
                && (i % chunkSize) == (chunkSize-1)) {
            LOGD("%s", ""); // Print a blank line.
        }
    }
    LOGD("};");
}

static void TraceUniformv(int elementCount, char type,
        GLuint location, GLsizei count, const void* value) {
    TraceValue(elementCount, type, count, 1, value);
    LOGD("glUniform%d%c(%u, %u, value);", elementCount, type, location, count);
}

static void TraceUniformMatrix(int matrixSideLength,
        GLuint location, GLsizei count, GLboolean transpose, const void* value) {
    TraceValue(matrixSideLength, 'f', count, matrixSideLength, value);
    LOGD("glUniformMatrix%dfv(%u, %u, %s, value);", matrixSideLength, location, count,
            GLbooleanToString(transpose));
}

static void TraceGL(const char* name, int numArgs, ...) {
    va_list argp;
    va_start(argp, numArgs);
    if (strcmp(name, "glShaderSource") == 0) {
    int nameLen = strlen(name);

    // glShaderSource
    if (nameLen == 14 && strcmp(name, "glShaderSource") == 0) {
        va_arg(argp, const char*);
        GLuint shader = va_arg(argp, GLuint);
        va_arg(argp, const char*);
@@ -110,26 +188,57 @@ static void TraceGL(const char* name, int numArgs, ...) {
        const GLchar** string = (const GLchar**) va_arg(argp, void*);
        va_arg(argp, const char*);
        const GLint* length = (const GLint*) va_arg(argp, void*);
        va_end(argp);
        TraceGLShaderSource(shader, count, string, length);
        return;
    }

    // glUniformXXv

    if (nameLen == 12 && strncmp(name, "glUniform", 9) == 0 && name[11] == 'v') {
        int elementCount = name[9] - '0'; // 1..4
        char type = name[10]; // 'f' or 'i'
        va_arg(argp, const char*);
        GLuint location = va_arg(argp, GLuint);
        va_arg(argp, const char*);
        GLsizei count = va_arg(argp, GLsizei);
        va_arg(argp, const char*);
        const void* value = (const void*) va_arg(argp, void*);
        va_end(argp);
        TraceUniformv(elementCount, type, location, count, value);
        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);

    // glUniformMatrixXfv

    if (nameLen == 18 && strncmp(name, "glUniformMatrix", 15) == 0
            && name[16] == 'f' && name[17] == 'v') {
        int matrixSideLength = name[15] - '0'; // 2..4
        va_arg(argp, const char*);
        GLuint location = va_arg(argp, GLuint);
        va_arg(argp, const char*);
        GLsizei count = va_arg(argp, GLsizei);
        va_arg(argp, const char*);
        GLboolean transpose = (GLboolean) va_arg(argp, int);
        va_arg(argp, const char*);
        const void* value = (const void*) va_arg(argp, void*);
        va_end(argp);
        TraceUniformMatrix(matrixSideLength, location, count, transpose, value);
        return;
    }

    StringBuilder builder;
    builder.append("%s(", name);
    for (int i = 0; i < numArgs; i++) {
        if (i > 0) {
            APPEND(", ");
            builder.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);
            builder.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;
@@ -139,38 +248,38 @@ static void TraceGL(const char* name, int numArgs, ...) {
                    if (first) {
                        first = false;
                    } else {
                        APPEND(" | ");
                        builder.append(" | ");
                    }
                    APPEND("%s", b->s);
                    builder.append("%s", b->s);
                    arg &= ~b->e;
                }
            }
            if (first || arg != 0) {
                if (!first) {
                    APPEND(" | ");
                    builder.append(" | ");
                }
                APPEND("0x%08x", arg);
                builder.append("0x%08x", arg);
            }
        } else if (strcmp(type, "GLboolean") == 0) {
            int arg = va_arg(argp, int);
            APPEND("%s", arg ? "GL_TRUE" : "GL_FALSE");
            GLboolean arg = va_arg(argp, int);
            builder.append("%s", GLbooleanToString(arg));
        } else if (strcmp(type, "GLclampf") == 0) {
            double arg = va_arg(argp, double);
            APPEND("%g", arg);
            builder.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);
                builder.append("%s", s);
            } else {
                APPEND("0x%x", arg);
                builder.append("0x%x", arg);
            }
        } else if (strcmp(type, "GLfixed") == 0) {
            int arg = va_arg(argp, int);
            APPEND("0x%08x", arg);
            builder.append("0x%08x", arg);
        } else if (strcmp(type, "GLfloat") == 0) {
            double arg = va_arg(argp, double);
            APPEND("%g", arg);
            builder.append("%g", arg);
        } else if (strcmp(type, "GLint") == 0) {
            int arg = va_arg(argp, int);
            const char* s = NULL;
@@ -178,30 +287,29 @@ static void TraceGL(const char* name, int numArgs, ...) {
                s = GLEnumToString(arg);
            }
            if (s) {
                APPEND("%s", s);
                builder.append("%s", s);
            } else {
                APPEND("%d", arg);
                builder.append("%d", arg);
            }
        } else if (strcmp(type, "GLintptr") == 0) {
            int arg = va_arg(argp, unsigned int);
            APPEND("%u", arg);
            builder.append("%u", arg);
        } else if (strcmp(type, "GLsizei") == 0) {
            int arg = va_arg(argp, size_t);
            APPEND("%u", arg);
            builder.append("%u", arg);
        } else if (strcmp(type, "GLsizeiptr") == 0) {
            int arg = va_arg(argp, size_t);
            APPEND("%u", arg);
            builder.append("%u", arg);
        } else if (strcmp(type, "GLuint") == 0) {
            int arg = va_arg(argp, unsigned int);
            APPEND("%u", arg);
            builder.append("%u", arg);
        } else {
            APPEND("/* ??? %s */", type);
            builder.append("/* ??? %s */", type);
            break;
        }
    }
    APPEND(");");
    line[lineSize-1] = '\0';
    LOGD("%s", line);
    builder.append(");");
    LOGD("%s", builder.getString());
    va_end(argp);
}