[Mesa-dev] [PATCH 4/4] virgl: add debug-switch to output TGSI

[Erik Faye-Lund]

This is quite useful for debugging shader-transpiling issues in
virglrenderer.

Signed-off-by: Erik Faye-Lund <erik.faye-lund at collabora.com>
---
 src/gallium/drivers/virgl/virgl_encode.c | 3 +++
 src/gallium/drivers/virgl/virgl_screen.c | 1 +
 src/gallium/drivers/virgl/virgl_screen.h | 1 +
 3 files changed, 5 insertions(+)

diff --git a/src/gallium/drivers/virgl/virgl_encode.c b/src/gallium/drivers/virgl/virgl_encode.c
index ea544fe5cd..4e99dda0f7 100644
--- a/src/gallium/drivers/virgl/virgl_encode.c
+++ b/src/gallium/drivers/virgl/virgl_encode.c
@@ -274,6 +274,9 @@ int virgl_encode_shader_state(struct virgl_context *ctx,
    if (bret == false)
       return -1;
 
+   if (virgl_debug & VIRGL_DEBUG_TGSI)
+      debug_printf("TGSI:\n---8<---\n%s\n---8<---\n", str);
+
    shader_len = strlen(str) + 1;
 
    left_bytes = shader_len;
diff --git a/src/gallium/drivers/virgl/virgl_screen.c b/src/gallium/drivers/virgl/virgl_screen.c
index 61147c423c..d9b50c9cca 100644
--- a/src/gallium/drivers/virgl/virgl_screen.c
+++ b/src/gallium/drivers/virgl/virgl_screen.c
@@ -39,6 +39,7 @@
 int virgl_debug = 0;
 static const struct debug_named_value debug_options[] = {
    { "verbose", VIRGL_DEBUG_VERBOSE, NULL },
+   { "tgsi", VIRGL_DEBUG_TGSI, NULL },
    DEBUG_NAMED_VALUE_END
 };
 DEBUG_GET_ONCE_FLAGS_OPTION(virgl_debug, "VIRGL_DEBUG", debug_options, 0)
diff --git a/src/gallium/drivers/virgl/virgl_screen.h b/src/gallium/drivers/virgl/virgl_screen.h
index 8334d16242..719f5166d7 100644
--- a/src/gallium/drivers/virgl/virgl_screen.h
+++ b/src/gallium/drivers/virgl/virgl_screen.h
@@ -28,6 +28,7 @@
 #include "virgl_winsys.h"
 
 #define VIRGL_DEBUG_VERBOSE 1
+#define VIRGL_DEBUG_TGSI    2
 extern int virgl_debug;
 
 struct virgl_screen {
-- 
2.17.1