1 /**************************************************************************
3 * Copyright 2011 Jose Fonseca
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
30 #include "retrace.hpp"
32 #include "glretrace.hpp"
37 bool double_buffer = false;
38 bool insideGlBeginEnd = false;
40 glws::WindowSystem *ws = NULL;
41 glws::Visual *visual = NULL;
42 glws::Drawable *drawable = NULL;
43 glws::Context *context = NULL;
46 long long startTime = 0;
49 bool benchmark = false;
50 const char *compare_prefix = NULL;
51 const char *snapshot_prefix = NULL;
53 unsigned dump_state = ~0;
56 checkGlError(Trace::Call &call) {
57 if (benchmark || insideGlBeginEnd) {
61 GLenum error = glGetError();
62 if (error == GL_NO_ERROR) {
66 if (retrace::verbosity == 0) {
71 std::cerr << call.no << ": ";
72 std::cerr << "warning: glGetError(";
73 std::cerr << call.name();
78 std::cerr << "GL_INVALID_ENUM";
80 case GL_INVALID_VALUE:
81 std::cerr << "GL_INVALID_VALUE";
83 case GL_INVALID_OPERATION:
84 std::cerr << "GL_INVALID_OPERATION";
86 case GL_STACK_OVERFLOW:
87 std::cerr << "GL_STACK_OVERFLOW";
89 case GL_STACK_UNDERFLOW:
90 std::cerr << "GL_STACK_UNDERFLOW";
92 case GL_OUT_OF_MEMORY:
93 std::cerr << "GL_OUT_OF_MEMORY";
95 case GL_INVALID_FRAMEBUFFER_OPERATION:
96 std::cerr << "GL_INVALID_FRAMEBUFFER_OPERATION";
98 case GL_TABLE_TOO_LARGE:
99 std::cerr << "GL_TABLE_TOO_LARGE";
109 static void snapshot(Image::Image &image) {
110 GLint drawbuffer = double_buffer ? GL_BACK : GL_FRONT;
111 GLint readbuffer = double_buffer ? GL_BACK : GL_FRONT;
112 glGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);
113 glGetIntegerv(GL_READ_BUFFER, &readbuffer);
114 glReadBuffer(drawbuffer);
116 glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
117 glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE);
118 glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE);
119 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
120 glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0);
121 glPixelStorei(GL_PACK_SKIP_ROWS, 0);
122 glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
123 glPixelStorei(GL_PACK_SKIP_IMAGES, 0);
124 glPixelStorei(GL_PACK_ALIGNMENT, 1);
126 glReadPixels(0, 0, image.width, image.height, GL_RGBA, GL_UNSIGNED_BYTE, image.pixels);
130 glReadBuffer(readbuffer);
134 void frame_complete(unsigned call_no) {
138 (snapshot_prefix || compare_prefix)) {
139 Image::Image *ref = NULL;
140 if (compare_prefix) {
141 char filename[PATH_MAX];
142 snprintf(filename, sizeof filename, "%s%010u.png", compare_prefix, call_no);
143 ref = Image::readPNG(filename);
147 if (retrace::verbosity >= 0)
148 std::cout << "Read " << filename << "\n";
151 Image::Image src(drawable->width, drawable->height, true);
154 if (snapshot_prefix) {
155 char filename[PATH_MAX];
156 snprintf(filename, sizeof filename, "%s%010u.png", snapshot_prefix, call_no);
157 if (src.writePNG(filename) && retrace::verbosity >= 0) {
158 std::cout << "Wrote " << filename << "\n";
163 std::cout << "Snapshot " << call_no << " average precision of " << src.compare(*ref) << " bits\n";
171 static void display(void) {
174 while ((call = parser.parse_call())) {
175 const std::string &name = call->name();
177 if (retrace::verbosity >= 1) {
182 if (name[0] == 'w' && name[1] == 'g' && name[2] == 'l') {
183 glretrace::retrace_call_wgl(*call);
185 else if (name[0] == 'g' && name[1] == 'l' && name[2] == 'X') {
186 glretrace::retrace_call_glx(*call);
188 retrace::retrace_call(*call);
191 if (!insideGlBeginEnd &&
192 drawable && context &&
193 call->no >= dump_state) {
194 state_dump(std::cout);
201 // Reached the end of trace
204 long long endTime = OS::GetTime();
205 float timeInterval = (endTime - startTime) * 1.0E-6;
207 if (retrace::verbosity >= -1) {
209 "Rendered " << frame << " frames"
210 " in " << timeInterval << " secs,"
211 " average of " << (frame/timeInterval) << " fps\n";
215 while (ws->processEvents()) {}
222 static void usage(void) {
224 "Usage: glretrace [OPTION] TRACE\n"
227 " -b benchmark (no glgeterror; no messages)\n"
228 " -c PREFIX compare against snapshots\n"
229 " -db use a double buffer visual\n"
230 " -s PREFIX take snapshots\n"
231 " -v verbose output\n"
232 " -D CALLNO dump state at specific call no\n"
233 " -w wait on final frame\n";
237 int main(int argc, char **argv)
241 for (i = 1; i < argc; ++i) {
242 const char *arg = argv[i];
248 if (!strcmp(arg, "--")) {
250 } else if (!strcmp(arg, "-b")) {
252 retrace::verbosity = -1;
253 } else if (!strcmp(arg, "-c")) {
254 compare_prefix = argv[++i];
255 } else if (!strcmp(arg, "-D")) {
256 dump_state = atoi(argv[++i]);
257 retrace::verbosity = -2;
258 } else if (!strcmp(arg, "-db")) {
259 double_buffer = true;
260 } else if (!strcmp(arg, "--help")) {
263 } else if (!strcmp(arg, "-s")) {
264 snapshot_prefix = argv[++i];
265 } else if (!strcmp(arg, "-v")) {
266 ++retrace::verbosity;
267 } else if (!strcmp(arg, "-w")) {
270 std::cerr << "error: unknown option " << arg << "\n";
276 ws = glws::createNativeWindowSystem();
277 visual = ws->createVisual(double_buffer);
279 for ( ; i < argc; ++i) {
280 if (parser.open(argv[i])) {
281 startTime = OS::GetTime();
290 } /* namespace glretrace */