X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=glretrace_main.cpp;h=cd35889c9dff873303dd27d26274829d296e664d;hb=2ffe9f84af4555b6e85c9b47c5c217a975436d9f;hp=beaac82dd4e7429ae31d1d054e1b0387ce3fca46;hpb=610ed330cf7f79ec449fb9b1b1aca87f233812c0;p=apitrace

diff --git a/glretrace_main.cpp b/glretrace_main.cpp
index beaac82..cd35889 100644
--- a/glretrace_main.cpp
+++ b/glretrace_main.cpp
@@ -103,6 +103,37 @@ checkGlError(Trace::Call &call) {
     std::cerr << "\n";
 }
 
+/**
+ * Grow the current drawble.
+ *
+ * We need to infer the drawable size from GL calls because the drawable sizes
+ * are specified by OS specific calls which we do not trace.
+ */
+void
+updateDrawable(int width, int height) {
+    if (!drawable) {
+        return;
+    }
+
+    if (width  <= glretrace::drawable->width &&
+        height <= glretrace::drawable->height) {
+        return;
+    }
+
+    // Check for bound framebuffer last, as this may have a performance impact.
+    GLint draw_framebuffer = 0;
+    glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &draw_framebuffer);
+    if (draw_framebuffer != 0) {
+        return;
+    }
+
+    glretrace::drawable->resize(width, height);
+    if (!drawable->visible) {
+        drawable->show();
+    }
+    glScissor(0, 0, width, height);
+}
+
 
 void snapshot(unsigned call_no) {
     if (!drawable ||
@@ -130,10 +161,16 @@ void snapshot(unsigned call_no) {
     }
 
     if (snapshot_prefix) {
-        char filename[PATH_MAX];
-        snprintf(filename, sizeof filename, "%s%010u.png", snapshot_prefix, call_no);
-        if (src->writePNG(filename) && retrace::verbosity >= 0) {
-            std::cout << "Wrote " << filename << "\n";
+        if (snapshot_prefix[0] == '-' && snapshot_prefix[1] == 0) {
+            char comment[21];
+            snprintf(comment, sizeof comment, "%u", call_no);
+            src->writePNM(std::cout, comment);
+        } else {
+            char filename[PATH_MAX];
+            snprintf(filename, sizeof filename, "%s%010u.png", snapshot_prefix, call_no);
+            if (src->writePNG(filename) && retrace::verbosity >= 0) {
+                std::cout << "Wrote " << filename << "\n";
+            }
         }
     }
 
@@ -220,7 +257,7 @@ static void usage(void) {
         "  -c PREFIX    compare against snapshots\n"
         "  -db          use a double buffer visual (default)\n"
         "  -sb          use a single buffer visual\n"
-        "  -s PREFIX    take snapshots\n"
+        "  -s PREFIX    take snapshots; `-` for PNM stdout output\n"
         "  -S FREQUENCY snapshot frequency: frame (default), framebuffer, or draw\n"
         "  -v           verbose output\n"
         "  -D CALLNO    dump state at specific call no\n"
@@ -264,6 +301,9 @@ int main(int argc, char **argv)
             if (snapshot_frequency == FREQUENCY_NEVER) {
                 snapshot_frequency = FREQUENCY_FRAME;
             }
+            if (snapshot_prefix[0] == '-' && snapshot_prefix[1] == 0) {
+                retrace::verbosity = -2;
+            }
         } else if (!strcmp(arg, "-S")) {
             arg = argv[++i];
             if (!strcmp(arg, "frame")) {