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225 lines
6 KiB
C
225 lines
6 KiB
C
/*
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* QEMU Geforce NV2A debug helpers
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*
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* Copyright (c) 2015 Jannik Vogel
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* Copyright (c) 2012 espes
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "debug.h"
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#ifdef DEBUG_NV2A_GL
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdarg.h>
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#include <assert.h>
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#ifdef CONFIG_RENDERDOC
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#include "thirdparty/renderdoc_app.h"
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#ifdef _WIN32
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#include <libloaderapi.h>
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#else
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#include <dlfcn.h>
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#endif
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static RENDERDOC_API_1_1_2 *rdoc_api = NULL;
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static int32_t renderdoc_capture_frames = 0;
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#endif
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#define CHECK_GL_ERROR() do { \
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GLenum error = glGetError(); \
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if (error != GL_NO_ERROR) { \
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fprintf(stderr, "OpenGL error: 0x%X (%d) at %s:%d\n", error, error, __FILE__, __LINE__); \
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assert(!"OpenGL error detected"); \
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} \
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} while(0)
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static bool has_GL_GREMEDY_frame_terminator = false;
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static bool has_GL_KHR_debug = false;
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void gl_debug_initialize(void)
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{
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has_GL_KHR_debug = glo_check_extension("GL_KHR_debug");
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has_GL_GREMEDY_frame_terminator = glo_check_extension("GL_GREMEDY_frame_terminator");
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if (has_GL_KHR_debug) {
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#if defined(__APPLE__)
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/* On macOS, calling glEnable(GL_DEBUG_OUTPUT) will result in error
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* GL_INVALID_ENUM.
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*
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* According to GL_KHR_debug this should work, therefore probably
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* not a bug in our code.
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*
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* It appears however that we can safely ignore this error, and the
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* debug functions which we depend on will still work as expected,
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* so skip the call for this platform.
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*/
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#else
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glEnable(GL_DEBUG_OUTPUT);
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assert(glGetError() == GL_NO_ERROR);
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#endif
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}
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#ifdef CONFIG_RENDERDOC
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const char *renderdoc_lib;
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void* renderdoc;
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#ifdef __APPLE__
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renderdoc_lib = "librenderdoc.dylib";
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#elif _WIN32
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renderdoc_lib = "renderdoc.dll";
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#else
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renderdoc_lib = "librenderdoc.so";
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#endif
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#ifdef _WIN32
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renderdoc = GetModuleHandleA(renderdoc_lib);
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if (renderdoc) {
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pRENDERDOC_GetAPI RENDERDOC_GetAPI = (pRENDERDOC_GetAPI)GetProcAddress(
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renderdoc, "RENDERDOC_GetAPI");
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#else
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renderdoc = dlopen(renderdoc_lib, RTLD_NOW | RTLD_NOLOAD);
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if (renderdoc) {
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pRENDERDOC_GetAPI RENDERDOC_GetAPI = (pRENDERDOC_GetAPI)dlsym(
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renderdoc, "RENDERDOC_GetAPI");
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#endif
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int ret = RENDERDOC_GetAPI(eRENDERDOC_API_Version_1_1_2,
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(void **)&rdoc_api);
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assert(ret == 1 && "Failed to retrieve RenderDoc API.");
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}
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#endif
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}
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void gl_debug_message(bool cc, const char *fmt, ...)
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{
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if (!has_GL_KHR_debug) {
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return;
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}
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size_t n;
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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n = vsnprintf(buffer, sizeof(buffer), fmt, ap);
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assert(n <= sizeof(buffer));
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va_end(ap);
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glDebugMessageInsert(GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_MARKER,
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0, GL_DEBUG_SEVERITY_NOTIFICATION, n, buffer);
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if (cc) {
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fwrite(buffer, sizeof(char), n, stdout);
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fputc('\n', stdout);
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}
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}
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void gl_debug_group_begin(const char *fmt, ...)
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{
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/* Debug group begin */
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if (has_GL_KHR_debug) {
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size_t n;
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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n = vsnprintf(buffer, sizeof(buffer), fmt, ap);
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assert(n <= sizeof(buffer));
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va_end(ap);
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glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, n, buffer);
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}
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/* Check for errors before starting real commands in group */
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assert(glGetError() == GL_NO_ERROR);
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}
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void gl_debug_group_end(void)
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{
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/* Check for errors when leaving group */
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assert(glGetError() == GL_NO_ERROR);
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/* Debug group end */
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if (has_GL_KHR_debug) {
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glPopDebugGroup();
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}
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}
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void gl_debug_label(GLenum target, GLuint name, const char *fmt, ...)
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{
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if (!has_GL_KHR_debug) {
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return;
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}
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size_t n;
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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n = vsnprintf(buffer, sizeof(buffer), fmt, ap);
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assert(n <= sizeof(buffer));
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va_end(ap);
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glObjectLabel(target, name, n, buffer);
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GLenum err = glGetError();
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assert(err == GL_NO_ERROR);
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}
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void gl_debug_frame_terminator(void)
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{
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CHECK_GL_ERROR();
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#ifdef CONFIG_RENDERDOC
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if (rdoc_api) {
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if (rdoc_api->IsTargetControlConnected()) {
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if (rdoc_api->IsFrameCapturing()) {
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rdoc_api->EndFrameCapture(NULL, NULL);
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GLenum error = glGetError();
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if (error != GL_NO_ERROR) {
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fprintf(stderr,
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"Renderdoc EndFrameCapture triggered GL error 0x%X - ignoring\n",
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error);
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}
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}
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if (renderdoc_capture_frames) {
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rdoc_api->StartFrameCapture(NULL, NULL);
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GLenum error = glGetError();
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if (error != GL_NO_ERROR) {
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fprintf(stderr,
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"Renderdoc StartFrameCapture triggered GL error 0x%X - ignoring\n",
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error);
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}
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--renderdoc_capture_frames;
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}
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}
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}
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#endif
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if (!has_GL_GREMEDY_frame_terminator) {
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return;
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}
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glFrameTerminatorGREMEDY();
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CHECK_GL_ERROR();
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}
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#ifdef CONFIG_RENDERDOC
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bool nv2a_dbg_renderdoc_available(void) {
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return rdoc_api != NULL;
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}
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void nv2a_dbg_renderdoc_capture_frames(uint32_t num_frames) {
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renderdoc_capture_frames = num_frames;
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}
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#endif
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#endif // DEBUG_NV2A_GL
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