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Merge branch 'richardgv-dev'

This commit is contained in:
Richard Grenville 2013-05-16 10:09:53 +08:00
parent 9a45338254 57d8b940e7
commit 1b34dc3a9a
6 changed files with 426 additions and 163 deletions
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59
src/common.h
View File

@ -317,6 +317,11 @@ typedef void (*f_ReleaseTexImageEXT) (Display *display, GLXDrawable drawable, in
typedef void (*f_CopySubBuffer) (Display *dpy, GLXDrawable drawable, int x, int y, int width, int height);
#ifdef DEBUG_GLX_MARK
typedef void (*f_StringMarkerGREMEDY) (GLsizei len, const void *string);
typedef void (*f_FrameTerminatorGREMEDY) (void);
#endif
/// @brief Wrapper of a GLX FBConfig.
typedef struct {
GLXFBConfig cfg;
@ -392,6 +397,8 @@ typedef struct {
bool glx_no_rebind_pixmap;
/// GLX swap method we assume OpenGL uses.
int glx_swap_method;
/// Whether to use GL_EXT_gpu_shader4 to (hopefully) accelerates blurring.
bool glx_use_gpushader4;
/// Whether to try to detect WM windows and mark them as focused.
bool mark_wmwin_focused;
/// Whether to mark override-redirect windows as focused.
@ -686,6 +693,12 @@ typedef struct {
f_ReleaseTexImageEXT glXReleaseTexImageProc;
/// Pointer to glXCopySubBufferMESA function.
f_CopySubBuffer glXCopySubBufferProc;
#ifdef DEBUG_GLX_MARK
/// Pointer to StringMarkerGREMEDY function.
f_StringMarkerGREMEDY glStringMarkerGREMEDY;
/// Pointer to FrameTerminatorGREMEDY function.
f_FrameTerminatorGREMEDY glFrameTerminatorGREMEDY;
#endif
/// FBConfig-s for GLX pixmap of different depths.
glx_fbconfig_t *glx_fbconfigs[OPENGL_MAX_DEPTH + 1];
#ifdef CONFIG_VSYNC_OPENGL_GLSL
@ -1234,7 +1247,7 @@ mstrncpy(const char *src, unsigned len) {
/**
* Allocate the space and join two strings.
*/
static inline char * __attribute__((const))
static inline char *
mstrjoin(const char *src1, const char *src2) {
char *str = malloc(sizeof(char) * (strlen(src1) + strlen(src2) + 1));
@ -1247,7 +1260,7 @@ mstrjoin(const char *src1, const char *src2) {
/**
* Allocate the space and join two strings;
*/
static inline char * __attribute__((const))
static inline char *
mstrjoin3(const char *src1, const char *src2, const char *src3) {
char *str = malloc(sizeof(char) * (strlen(src1) + strlen(src2)
+ strlen(src3) + 1));
@ -1259,6 +1272,16 @@ mstrjoin3(const char *src1, const char *src2, const char *src3) {
return str;
}
/**
* Concatenate a string on heap with another string.
*/
static inline void
mstrextend(char **psrc1, const char *src2) {
*psrc1 = realloc(*psrc1, (*psrc1 ? strlen(*psrc1): 0) + strlen(src2) + 1);
strcat(*psrc1, src2);
}
/**
* Normalize an int value to a specific range.
*
@ -1791,6 +1814,38 @@ glx_create_program(const GLuint * const shaders, int nshaders);
#endif
#endif
/**
* Add a OpenGL debugging marker.
*/
static inline void
glx_mark_(session_t *ps, const char *func, XID xid, bool start) {
#ifdef DEBUG_GLX_MARK
if (BKEND_GLX == ps->o.backend && ps->glStringMarkerGREMEDY) {
if (!func) func = "(unknown)";
const char *postfix = (start ? " (start)": " (end)");
char *str = malloc((strlen(func) + 12 + 2
+ strlen(postfix) + 5) * sizeof(char));
strcpy(str, func);
sprintf(str + strlen(str), "(%#010lx)%s", xid, postfix);
ps->glStringMarkerGREMEDY(strlen(str), str);
free(str);
}
#endif
}
#define glx_mark(ps, xid, start) glx_mark_(ps, __func__, xid, start)
/**
* Add a OpenGL debugging marker.
*/
static inline void
glx_mark_frame(session_t *ps) {
#ifdef DEBUG_GLX_MARK
if (BKEND_GLX == ps->o.backend && ps->glFrameTerminatorGREMEDY)
ps->glFrameTerminatorGREMEDY();
#endif
}
static inline void
free_texture(session_t *ps, glx_texture_t **pptex) {
#ifdef CONFIG_VSYNC_OPENGL

198
src/compton.c
View File

@ -1402,6 +1402,8 @@ render(session_t *ps, int x, int y, int dx, int dy, int wid, int hei,
static inline void
win_paint_win(session_t *ps, win *w, XserverRegion reg_paint,
const reg_data_t *pcache_reg) {
glx_mark(ps, w->id, true);
// Fetch Pixmap
if (!w->paint.pixmap && ps->has_name_pixmap) {
set_ignore_next(ps);
@ -1564,6 +1566,8 @@ win_paint_win(session_t *ps, win *w, XserverRegion reg_paint,
#endif
}
}
glx_mark(ps, w->id, false);
}
/**
@ -1812,6 +1816,7 @@ paint_all(session_t *ps, XserverRegion region, XserverRegion region_real, win *t
default:
assert(0);
}
glx_mark_frame(ps);
if (ps->o.vsync_aggressive)
vsync_wait(ps);
@ -4050,7 +4055,7 @@ ev_handle(session_t *ps, XEvent *ev) {
* Print usage text and exit.
*/
static void
usage(void) {
usage(int ret) {
#define WARNING_DISABLED " (DISABLED AT COMPILE TIME)"
#define WARNING
const static char *usage_text =
@ -4238,9 +4243,10 @@ usage(void) {
" boost.\n"
"--glx-copy-from-front\n"
" GLX backend: Copy unmodified regions from front buffer instead of\n"
" redrawing them all. My tests with nvidia-drivers show a 10% decrease\n"
" in performance when the whole screen is modified, but a 20% increase\n"
" when only 1/4 is. My tests on nouveau show terrible slowdown.\n"
" redrawing them all. My tests with nvidia-drivers show a 5% decrease\n"
" in performance when the whole screen is modified, but a 30% increase\n"
" when only 1/4 is. My tests on nouveau show terrible slowdown. Could\n"
" work with --glx-swap-method but not --glx-use-copysubbuffermesa.\n"
"--glx-use-copysubbuffermesa\n"
" GLX backend: Use MESA_copy_sub_buffer to do partial screen update.\n"
" My tests on nouveau shows a 200% performance boost when only 1/4 of\n"
@ -4258,6 +4264,9 @@ usage(void) {
" but safer (6 is still faster than 0). -1 means auto-detect using\n"
" GLX_EXT_buffer_age, supported by some drivers. Useless with\n"
" --glx-use-copysubbuffermesa.\n"
"--glx-use-gpushader4\n"
" GLX backend: Use GL_EXT_gpu_shader4 for some optimization on blur\n"
" GLSL code. My tests on GTX 670 show no noticeable effect.\n"
#undef WARNING
#ifndef CONFIG_DBUS
#define WARNING WARNING_DISABLED
@ -4273,11 +4282,12 @@ usage(void) {
" Specify window ID to repaint in benchmark mode. If omitted or is 0,\n"
" the whole screen is repainted.\n"
;
fputs(usage_text , stderr);
FILE *f = (ret ? stderr: stdout);
fputs(usage_text, f);
#undef WARNING
#undef WARNING_DISABLED
exit(1);
exit(ret);
}
/**
@ -4385,90 +4395,6 @@ fork_after(session_t *ps) {
return success;
}
#ifdef CONFIG_LIBCONFIG
/**
* Get a file stream of the configuration file to read.
*
* Follows the XDG specification to search for the configuration file.
*/
static FILE *
open_config_file(char *cpath, char **ppath) {
const static char *config_filename = "/compton.conf";
const static char *config_filename_legacy = "/.compton.conf";
const static char *config_home_suffix = "/.config";
const static char *config_system_dir = "/etc/xdg";
char *dir = NULL, *home = NULL;
char *path = cpath;
FILE *f = NULL;
if (path) {
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
return f;
}
// Check user configuration file in $XDG_CONFIG_HOME firstly
if (!((dir = getenv("XDG_CONFIG_HOME")) && strlen(dir))) {
if (!((home = getenv("HOME")) && strlen(home)))
return NULL;
path = mstrjoin3(home, config_home_suffix, config_filename);
}
else
path = mstrjoin(dir, config_filename);
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
else
free(path);
if (f)
return f;
// Then check user configuration file in $HOME
if ((home = getenv("HOME")) && strlen(home)) {
path = mstrjoin(home, config_filename_legacy);
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
else
free(path);
if (f)
return f;
}
// Check system configuration file in $XDG_CONFIG_DIRS at last
if ((dir = getenv("XDG_CONFIG_DIRS")) && strlen(dir)) {
char *part = strtok(dir, ":");
while (part) {
path = mstrjoin(part, config_filename);
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
else
free(path);
if (f)
return f;
part = strtok(NULL, ":");
}
}
else {
path = mstrjoin(config_system_dir, config_filename);
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
else
free(path);
if (f)
return f;
}
return NULL;
}
/**
* Parse a floating-point number in matrix.
*/
@ -4597,6 +4523,90 @@ parse_conv_kern(session_t *ps, const char *src) {
return parse_matrix(ps, src);
}
#ifdef CONFIG_LIBCONFIG
/**
* Get a file stream of the configuration file to read.
*
* Follows the XDG specification to search for the configuration file.
*/
static FILE *
open_config_file(char *cpath, char **ppath) {
const static char *config_filename = "/compton.conf";
const static char *config_filename_legacy = "/.compton.conf";
const static char *config_home_suffix = "/.config";
const static char *config_system_dir = "/etc/xdg";
char *dir = NULL, *home = NULL;
char *path = cpath;
FILE *f = NULL;
if (path) {
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
return f;
}
// Check user configuration file in $XDG_CONFIG_HOME firstly
if (!((dir = getenv("XDG_CONFIG_HOME")) && strlen(dir))) {
if (!((home = getenv("HOME")) && strlen(home)))
return NULL;
path = mstrjoin3(home, config_home_suffix, config_filename);
}
else
path = mstrjoin(dir, config_filename);
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
else
free(path);
if (f)
return f;
// Then check user configuration file in $HOME
if ((home = getenv("HOME")) && strlen(home)) {
path = mstrjoin(home, config_filename_legacy);
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
else
free(path);
if (f)
return f;
}
// Check system configuration file in $XDG_CONFIG_DIRS at last
if ((dir = getenv("XDG_CONFIG_DIRS")) && strlen(dir)) {
char *part = strtok(dir, ":");
while (part) {
path = mstrjoin(part, config_filename);
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
else
free(path);
if (f)
return f;
part = strtok(NULL, ":");
}
}
else {
path = mstrjoin(config_system_dir, config_filename);
f = fopen(path, "r");
if (f && ppath)
*ppath = path;
else
free(path);
if (f)
return f;
}
return NULL;
}
/**
* Parse a condition list in configuration file.
*/
@ -4879,6 +4889,7 @@ get_cfg(session_t *ps, int argc, char *const *argv, bool first_pass) {
{ "fade-exclude", required_argument, NULL, 300 },
{ "blur-kern", required_argument, NULL, 301 },
{ "resize-damage", required_argument, NULL, 302 },
{ "glx-use-gpushader4", no_argument, NULL, 303 },
// Must terminate with a NULL entry
{ NULL, 0, NULL, 0 },
};
@ -4898,7 +4909,7 @@ get_cfg(session_t *ps, int argc, char *const *argv, bool first_pass) {
else if ('d' == o)
ps->o.display = mstrcpy(optarg);
else if ('?' == o || ':' == o)
usage();
usage(1);
}
// Check for abundant positional arguments
@ -4939,7 +4950,7 @@ get_cfg(session_t *ps, int argc, char *const *argv, bool first_pass) {
#define P_CASEBOOL(idx, option) case idx: ps->o.option = true; break
// Short options
case 'h':
usage();
usage(0);
break;
case 'd':
break;
@ -5111,8 +5122,9 @@ get_cfg(session_t *ps, int argc, char *const *argv, bool first_pass) {
// --resize-damage
ps->o.resize_damage = atoi(optarg);
break;
P_CASEBOOL(303, glx_use_gpushader4);
default:
usage();
usage(1);
break;
#undef P_CASEBOOL
}

6
src/compton.h
View File

@ -146,16 +146,16 @@ free_damage(session_t *ps, Damage *p) {
}
}
#ifdef CONFIG_C2
/**
* Destroy a condition list.
*/
static inline void
free_wincondlst(c2_lptr_t **pcondlst) {
#ifdef CONFIG_C2
while ((*pcondlst = c2_free_lptr(*pcondlst)))
continue;
}
#endif
}
/**
* Check whether a paint_t contains enough data.
@ -813,7 +813,7 @@ ev_window(session_t *ps, XEvent *ev);
#endif
static void __attribute__ ((noreturn))
usage(void);
usage(int ret);
static bool
register_cm(session_t *ps);

20
src/dbus.c
View File

@ -605,6 +605,20 @@ cdbus_process(session_t *ps, DBusMessage *msg) {
"org.freedesktop.DBus.Introspectable", "Introspect")) {
success = cdbus_process_introspect(ps, msg);
}
else if (dbus_message_is_method_call(msg,
"org.freedesktop.DBus.Peer", "Ping")) {
cdbus_reply(ps, msg, NULL, NULL);
success = true;
}
else if (dbus_message_is_method_call(msg,
"org.freedesktop.DBus.Peer", "GetMachineId")) {
char *uuid = dbus_get_local_machine_id();
if (uuid) {
cdbus_reply_string(ps, msg, uuid);
dbus_free(uuid);
success = true;
}
}
else if (dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameAcquired")
|| dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameLost")) {
success = true;
@ -1028,6 +1042,12 @@ cdbus_process_introspect(session_t *ps, DBusMessage *msg) {
" <arg name='data' direction='out' type='s' />\n"
" </method>\n"
" </interface>\n"
" <interface name='org.freedesktop.DBus.Peer'>\n"
" <method name='Ping' />\n"
" <method name='GetMachineId'>\n"
" <arg name='machine_uuid' direction='out' type='s' />\n"
" </method>\n"
" </interface>\n"
" <interface name='" CDBUS_INTERFACE_NAME "'>\n"
" <signal name='win_added'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"

298
src/opengl.c
View File

@ -90,6 +90,13 @@ glx_init(session_t *ps, bool need_render) {
// Acquire function addresses
if (need_render) {
#ifdef DEBUG_GLX_MARK
ps->glStringMarkerGREMEDY = (f_StringMarkerGREMEDY)
glXGetProcAddress((const GLubyte *) "glStringMarkerGREMEDY");
ps->glFrameTerminatorGREMEDY = (f_FrameTerminatorGREMEDY)
glXGetProcAddress((const GLubyte *) "glFrameTerminatorGREMEDY");
#endif
ps->glXBindTexImageProc = (f_BindTexImageEXT)
glXGetProcAddress((const GLubyte *) "glXBindTexImageEXT");
ps->glXReleaseTexImageProc = (f_ReleaseTexImageEXT)
@ -197,23 +204,41 @@ glx_init_blur(session_t *ps) {
{
static const char *FRAG_SHADER_BLUR_PREFIX =
"#version 110\n"
"%s"
"uniform float offset_x;\n"
"uniform float offset_y;\n"
"uniform float factor_center;\n"
"uniform sampler2D tex_scr;\n"
"uniform %s tex_scr;\n"
"\n"
"void main() {\n"
" vec4 sum = vec4(0.0, 0.0, 0.0, 0.0);\n";
static const char *FRAG_SHADER_BLUR_ADD =
" sum += float(%.7g) * texture2D(tex_scr, vec2(gl_TexCoord[0].x + offset_x * float(%d), gl_TexCoord[0].y + offset_y * float(%d)));\n";
" sum += float(%.7g) * %s(tex_scr, vec2(gl_TexCoord[0].x + offset_x * float(%d), gl_TexCoord[0].y + offset_y * float(%d)));\n";
static const char *FRAG_SHADER_BLUR_ADD_GPUSHADER4 =
" sum += float(%.7g) * %sOffset(tex_scr, vec2(gl_TexCoord[0].x, gl_TexCoord[0].y), ivec2(%d, %d));\n";
static const char *FRAG_SHADER_BLUR_SUFFIX =
" sum += texture2D(tex_scr, vec2(gl_TexCoord[0].x, gl_TexCoord[0].y)) * factor_center;\n"
" sum += %s(tex_scr, vec2(gl_TexCoord[0].x, gl_TexCoord[0].y)) * factor_center;\n"
" gl_FragColor = sum / (factor_center + float(%.7g));\n"
"}\n";
int wid = XFixedToDouble(ps->o.blur_kern[0]), hei = XFixedToDouble(ps->o.blur_kern[1]);
const bool use_texture_rect = !ps->glx_has_texture_non_power_of_two;
const char *sampler_type = (use_texture_rect ?
"sampler2DRect": "sampler2D");
const char *texture_func = (use_texture_rect ?
"texture2DRect": "texture2D");
const char *shader_add = FRAG_SHADER_BLUR_ADD;
char *extension = mstrcpy("");
if (use_texture_rect)
mstrextend(&extension, "#extension GL_ARB_texture_rectangle : require\n");
if (ps->o.glx_use_gpushader4) {
mstrextend(&extension, "#extension GL_EXT_gpu_shader4 : require\n");
shader_add = FRAG_SHADER_BLUR_ADD_GPUSHADER4;
}
int wid = XFixedToDouble(ps->o.blur_kern[0]),
hei = XFixedToDouble(ps->o.blur_kern[1]);
int nele = wid * hei - 1;
int len = strlen(FRAG_SHADER_BLUR_PREFIX) + (strlen(FRAG_SHADER_BLUR_ADD) + 42) * nele
+ strlen(FRAG_SHADER_BLUR_SUFFIX) + 12 + 1;
int len = strlen(FRAG_SHADER_BLUR_PREFIX) + strlen(sampler_type) + strlen(extension) + (strlen(shader_add) + strlen(texture_func) + 42) * nele + strlen(FRAG_SHADER_BLUR_SUFFIX) + strlen(texture_func) + 12 + 1;
char *shader_str = calloc(len, sizeof(char));
if (!shader_str) {
printf_errf("(): Failed to allocate %d bytes for shader string.", len);
@ -221,8 +246,8 @@ glx_init_blur(session_t *ps) {
}
{
char *pc = shader_str;
strcpy(pc, FRAG_SHADER_BLUR_PREFIX);
pc += strlen(FRAG_SHADER_BLUR_PREFIX);
sprintf(pc, FRAG_SHADER_BLUR_PREFIX, extension, sampler_type);
pc += strlen(pc);
assert(strlen(shader_str) < len);
double sum = 0.0;
@ -231,14 +256,16 @@ glx_init_blur(session_t *ps) {
if (hei / 2 == i && wid / 2 == j)
continue;
double val = XFixedToDouble(ps->o.blur_kern[2 + i * wid + j]);
if (0.0 == val)
continue;
sum += val;
sprintf(pc, FRAG_SHADER_BLUR_ADD, val, j - wid / 2, i - hei / 2);
sprintf(pc, shader_add, val, texture_func, j - wid / 2, i - hei / 2);
pc += strlen(pc);
assert(strlen(shader_str) < len);
}
}
sprintf(pc, FRAG_SHADER_BLUR_SUFFIX, sum);
sprintf(pc, FRAG_SHADER_BLUR_SUFFIX, texture_func, sum);
assert(strlen(shader_str) < len);
#ifdef DEBUG_GLX_GLSL
fputs(shader_str, stdout);
@ -246,6 +273,7 @@ glx_init_blur(session_t *ps) {
#endif
}
ps->glx_frag_shader_blur = glx_create_shader(GL_FRAGMENT_SHADER, shader_str);
free(extension);
free(shader_str);
}
@ -268,8 +296,10 @@ glx_init_blur(session_t *ps) {
}
P_GET_UNIFM_LOC("factor_center", glx_prog_blur_unifm_factor_center);
P_GET_UNIFM_LOC("offset_x", glx_prog_blur_unifm_offset_x);
P_GET_UNIFM_LOC("offset_y", glx_prog_blur_unifm_offset_y);
if (!ps->o.glx_use_gpushader4) {
P_GET_UNIFM_LOC("offset_x", glx_prog_blur_unifm_offset_x);
P_GET_UNIFM_LOC("offset_y", glx_prog_blur_unifm_offset_y);
}
#undef P_GET_UNIFM_LOC
@ -593,24 +623,8 @@ glx_paint_pre(session_t *ps, XserverRegion *preg) {
// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Get buffer age
int buffer_age = ps->o.glx_swap_method;
bool trace_damage = (ps->o.glx_swap_method < 0 || ps->o.glx_swap_method > 1);
// Query GLX_EXT_buffer_age for buffer age
if (SWAPM_BUFFER_AGE == buffer_age) {
unsigned val = 0;
glXQueryDrawable(ps->dpy, get_tgt_window(ps),
GLX_BACK_BUFFER_AGE_EXT, &val);
buffer_age = val;
}
// Buffer age too high
if (buffer_age > CGLX_MAX_BUFFER_AGE + 1)
buffer_age = 0;
// Make sure buffer age >= 0
buffer_age = max_i(buffer_age, 0);
// Trace raw damage regions
XserverRegion newdamage = None;
if (trace_damage && *preg)
@ -619,37 +633,89 @@ glx_paint_pre(session_t *ps, XserverRegion *preg) {
// OpenGL doesn't support partial repaint without GLX_MESA_copy_sub_buffer,
// we could redraw the whole screen or copy unmodified pixels from
// front buffer with --glx-copy-from-front.
if (ps->o.glx_use_copysubbuffermesa || 1 == buffer_age || !*preg) {
}
else if (buffer_age > 1) {
for (int i = 0; i < buffer_age - 1; ++i) {
XserverRegion dmg = ps->all_damage_last[i];
if (!dmg) {
free_region(ps, preg);
break;
}
XFixesUnionRegion(ps->dpy, *preg, *preg, dmg);
}
}
else if (!ps->o.glx_copy_from_front) {
free_region(ps, preg);
if (ps->o.glx_use_copysubbuffermesa || !*preg) {
}
else {
int buffer_age = ps->o.glx_swap_method;
// Getting buffer age
{
XserverRegion reg_copy = XFixesCreateRegion(ps->dpy, NULL, 0);
XFixesSubtractRegion(ps->dpy, reg_copy, ps->screen_reg, *preg);
glx_set_clip(ps, reg_copy, NULL);
free_region(ps, &reg_copy);
// Query GLX_EXT_buffer_age for buffer age
if (SWAPM_BUFFER_AGE == buffer_age) {
unsigned val = 0;
glXQueryDrawable(ps->dpy, get_tgt_window(ps),
GLX_BACK_BUFFER_AGE_EXT, &val);
buffer_age = val;
}
// Buffer age too high
if (buffer_age > CGLX_MAX_BUFFER_AGE + 1)
buffer_age = 0;
// Make sure buffer age >= 0
buffer_age = max_i(buffer_age, 0);
// Check if we have we have empty regions
if (buffer_age > 1) {
for (int i = 0; i < buffer_age - 1; ++i)
if (!ps->all_damage_last[i]) { buffer_age = 0; break; }
}
}
{
GLfloat raster_pos[4];
glGetFloatv(GL_CURRENT_RASTER_POSITION, raster_pos);
glReadBuffer(GL_FRONT);
glRasterPos2f(0.0, 0.0);
glCopyPixels(0, 0, ps->root_width, ps->root_height, GL_COLOR);
glReadBuffer(GL_BACK);
glRasterPos4fv(raster_pos);
// Do nothing for buffer_age 1 (copy)
if (1 != buffer_age) {
// Copy pixels
if (ps->o.glx_copy_from_front) {
// Determine copy area
XserverRegion reg_copy = XFixesCreateRegion(ps->dpy, NULL, 0);
if (!buffer_age) {
XFixesSubtractRegion(ps->dpy, reg_copy, ps->screen_reg, *preg);
}
else {
for (int i = 0; i < buffer_age - 1; ++i)
XFixesUnionRegion(ps->dpy, reg_copy, reg_copy,
ps->all_damage_last[i]);
XFixesSubtractRegion(ps->dpy, reg_copy, reg_copy, *preg);
}
// Actually copy pixels
{
GLfloat raster_pos[4];
GLfloat curx = 0.0f, cury = 0.0f;
glGetFloatv(GL_CURRENT_RASTER_POSITION, raster_pos);
glReadBuffer(GL_FRONT);
glRasterPos2f(0.0, 0.0);
{
int nrects = 0;
XRectangle *rects = XFixesFetchRegion(ps->dpy, reg_copy, &nrects);
for (int i = 0; i < nrects; ++i) {
const int x = rects[i].x;
const int y = ps->root_height - rects[i].y - rects[i].height;
// Kwin patch says glRasterPos2f() causes artifacts on bottom
// screen edge with some drivers
glBitmap(0, 0, 0, 0, x - curx, y - cury, NULL);
curx = x;
cury = y;
glCopyPixels(x, y, rects[i].width, rects[i].height, GL_COLOR);
}
cxfree(rects);
}
glReadBuffer(GL_BACK);
glRasterPos4fv(raster_pos);
}
free_region(ps, &reg_copy);
}
// Determine paint area
if (ps->o.glx_copy_from_front) { }
else if (buffer_age) {
for (int i = 0; i < buffer_age - 1; ++i)
XFixesUnionRegion(ps->dpy, *preg, *preg, ps->all_damage_last[i]);
}
else {
free_region(ps, preg);
}
}
}
@ -662,6 +728,10 @@ glx_paint_pre(session_t *ps, XserverRegion *preg) {
glx_set_clip(ps, *preg, NULL);
#ifdef DEBUG_GLX_PAINTREG
glx_render_color(ps, 0, 0, ps->root_width, ps->root_height, 0, *preg, NULL);
#endif
#ifdef DEBUG_GLX_ERR
glx_check_err(ps);
#endif
@ -819,13 +889,20 @@ glx_blur_dst(session_t *ps, int dx, int dy, int width, int height, float z,
glTexParameteri(tex_tgt, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(tex_tgt, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(tex_tgt, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(tex_tgt, 0, GL_RGB, mwidth, mheight, 0, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
glTexImage2D(tex_tgt, 0, GL_RGB, mwidth, mheight, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glCopyTexSubImage2D(tex_tgt, 0, 0, 0, mdx, ps->root_height - mdy - mheight, mwidth, mheight);
#ifdef DEBUG_GLX
printf_dbgf("(): %d, %d, %d, %d\n", mdx, ps->root_height - mdy - mheight, mwidth, mheight);
#endif
// Texture scaling factor
GLfloat texfac_x = 1.0f, texfac_y = 1.0f;
if (GL_TEXTURE_2D == tex_tgt) {
texfac_x /= mwidth;
texfac_y /= mheight;
}
// Paint it back
// Color negation for testing...
// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
@ -836,9 +913,9 @@ glx_blur_dst(session_t *ps, int dx, int dy, int width, int height, float z,
#ifdef CONFIG_VSYNC_OPENGL_GLSL
glUseProgram(ps->glx_prog_blur);
if (ps->glx_prog_blur_unifm_offset_x >= 0)
glUniform1f(ps->glx_prog_blur_unifm_offset_x, 1.0f / mwidth);
glUniform1f(ps->glx_prog_blur_unifm_offset_x, texfac_x);
if (ps->glx_prog_blur_unifm_offset_y >= 0)
glUniform1f(ps->glx_prog_blur_unifm_offset_y, 1.0f / mheight);
glUniform1f(ps->glx_prog_blur_unifm_offset_y, texfac_y);
if (ps->glx_prog_blur_unifm_factor_center >= 0)
glUniform1f(ps->glx_prog_blur_unifm_factor_center, factor_center);
#endif
@ -846,10 +923,10 @@ glx_blur_dst(session_t *ps, int dx, int dy, int width, int height, float z,
{
P_PAINTREG_START();
{
const GLfloat rx = (double) (crect.x - mdx) / mwidth;
const GLfloat ry = 1.0 - (double) (crect.y - mdy) / mheight;
const GLfloat rxe = rx + (double) crect.width / mwidth;
const GLfloat rye = ry - (double) crect.height / mheight;
const GLfloat rx = (crect.x - mdx) * texfac_x;
const GLfloat ry = (mheight - (crect.y - mdy)) * texfac_y;
const GLfloat rxe = rx + crect.width * texfac_x;
const GLfloat rye = ry - crect.height * texfac_y;
const GLfloat rdx = crect.x;
const GLfloat rdy = ps->root_height - crect.y;
const GLfloat rdxe = rdx + crect.width;
@ -939,6 +1016,11 @@ glx_render(session_t *ps, const glx_texture_t *ptex,
return false;
}
#ifdef DEBUG_GLX_PAINTREG
glx_render_dots(ps, dx, dy, width, height, z, reg_tgt, pcache_reg);
return true;
#endif
const bool argb = (GLX_TEXTURE_FORMAT_RGBA_EXT ==
ps->glx_fbconfigs[ptex->depth]->texture_fmt);
bool dual_texture = false;
@ -1049,10 +1131,18 @@ glx_render(session_t *ps, const glx_texture_t *ptex,
{
P_PAINTREG_START();
{
GLfloat rx = (double) (crect.x - dx + x) / ptex->width;
GLfloat ry = (double) (crect.y - dy + y) / ptex->height;
GLfloat rxe = rx + (double) crect.width / ptex->width;
GLfloat rye = ry + (double) crect.height / ptex->height;
GLfloat rx = (double) (crect.x - dx + x);
GLfloat ry = (double) (crect.y - dy + y);
GLfloat rxe = rx + (double) crect.width;
GLfloat rye = ry + (double) crect.height;
// Rectangle textures have [0-w] [0-h] while 2D texture has [0-1] [0-1]
// Thanks to amonakov for pointing out!
if (GL_TEXTURE_2D == ptex->target) {
rx = rx / ptex->width;
ry = ry / ptex->height;
rxe = rxe / ptex->width;
rye = rye / ptex->height;
}
GLint rdx = crect.x;
GLint rdy = ps->root_height - crect.y;
GLint rdxe = rdx + crect.width;
@ -1113,6 +1203,84 @@ glx_render(session_t *ps, const glx_texture_t *ptex,
return true;
}
/**
* Render a region with color.
*/
static void
glx_render_color(session_t *ps, int dx, int dy, int width, int height, int z,
XserverRegion reg_tgt, const reg_data_t *pcache_reg) {
static int color = 0;
color = color % (3 * 3 * 3 - 1) + 1;
glColor4f(1.0 / 3.0 * (color / (3 * 3)),
1.0 / 3.0 * (color % (3 * 3) / 3),
1.0 / 3.0 * (color % 3),
1.0f
);
z -= 0.2;
{
P_PAINTREG_START();
{
GLint rdx = crect.x;
GLint rdy = ps->root_height - crect.y;
GLint rdxe = rdx + crect.width;
GLint rdye = rdy - crect.height;
glVertex3i(rdx, rdy, z);
glVertex3i(rdxe, rdy, z);
glVertex3i(rdxe, rdye, z);
glVertex3i(rdx, rdye, z);
}
P_PAINTREG_END();
}
glColor4f(0.0f, 0.0f, 0.0f, 0.0f);
#ifdef DEBUG_GLX_ERR
glx_check_err(ps);
#endif
}
/**
* Render a region with dots.
*/
static void
glx_render_dots(session_t *ps, int dx, int dy, int width, int height, int z,
XserverRegion reg_tgt, const reg_data_t *pcache_reg) {
glColor4f(0.0f, 0.0f, 0.0f, 1.0f);
z -= 0.1;
{
P_PAINTREG_START();
{
static const GLint BLK_WID = 5, BLK_HEI = 5;
glEnd();
glPointSize(1.0);
glBegin(GL_POINTS);
GLint rdx = crect.x;
GLint rdy = ps->root_height - crect.y;
GLint rdxe = rdx + crect.width;
GLint rdye = rdy - crect.height;
rdx = (rdx) / BLK_WID * BLK_WID;
rdy = (rdy) / BLK_HEI * BLK_HEI;
rdxe = (rdxe) / BLK_WID * BLK_WID;
rdye = (rdye) / BLK_HEI * BLK_HEI;
for (GLint cdx = rdx; cdx < rdxe; cdx += BLK_WID)
for (GLint cdy = rdy; cdy > rdye; cdy -= BLK_HEI)
glVertex3i(cdx + BLK_WID / 2, cdy - BLK_HEI / 2, z);
}
P_PAINTREG_END();
}
glColor4f(0.0f, 0.0f, 0.0f, 0.0f);
#ifdef DEBUG_GLX_ERR
glx_check_err(ps);
#endif
}
/**
* Swap buffer with glXCopySubBufferMESA().
*/

8
src/opengl.h
View File

@ -132,3 +132,11 @@ glx_update_fbconfig(session_t *ps);
static int
glx_cmp_fbconfig(session_t *ps,
const glx_fbconfig_t *pfbc_a, const glx_fbconfig_t *pfbc_b);
static void
glx_render_color(session_t *ps, int dx, int dy, int width, int height, int z,
XserverRegion reg_tgt, const reg_data_t *pcache_reg);
static void
glx_render_dots(session_t *ps, int dx, int dy, int width, int height, int z,
XserverRegion reg_tgt, const reg_data_t *pcache_reg);