mirror of https://github.com/yshui/picom.git
Bug fix: GLX: Fix --inactive-dim & fix color inversion
- GLX backend: Fix broken --inactive-dim. - GLX backend: Fix bugs when inverting colors of windows. Thanks to madsy and neure for help. - GLX backend: Lift `glx_no_stencil` restriction from glx_init_blur(). It still probably won't work, but the user can try. - XRender backend: Use XRenderFillRectangles() instead of XRenderComposite() to do dimming.
This commit is contained in:
Richard Grenville
parent
75912d23f3
commit
9e607b2543
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@ -878,9 +878,6 @@ typedef struct _win {
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// Dim-related members
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/// Whether the window is to be dimmed.
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bool dim;
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/// Picture for dimming. Affected by user-specified inactive dim
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/// opacity and window opacity.
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Picture dim_alpha_pict;
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/// Whether to invert window color.
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bool invert_color;
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@ -1641,6 +1638,10 @@ bool
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glx_blur_dst(session_t *ps, int dx, int dy, int width, int height, float z,
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GLfloat factor_center);
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bool
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glx_dim_dst(session_t *ps, int dx, int dy, int width, int height, float z,
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GLfloat factor);
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bool
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glx_render(session_t *ps, const glx_texture_t *ptex,
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int x, int y, int dx, int dy, int width, int height, int z,
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@ -1192,16 +1192,6 @@ paint_preprocess(session_t *ps, win *list) {
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if (w->shadow && !paint_isvalid(ps, &w->shadow_paint))
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win_build_shadow(ps, w, 1);
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// Dimming preprocessing
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if (w->dim) {
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double dim_opacity = ps->o.inactive_dim;
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if (!ps->o.inactive_dim_fixed)
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dim_opacity *= get_opacity_percent(w);
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w->dim_alpha_pict = get_alpha_pict_d(ps, dim_opacity);
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}
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}
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if ((to_paint && WMODE_SOLID == w->mode)
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@ -1562,10 +1552,38 @@ win_paint_win(session_t *ps, win *w, XserverRegion reg_paint) {
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free_picture(ps, &pict);
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// Dimming the window if needed
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if (BKEND_XRENDER == ps->o.backend
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&& w->dim && w->dim_alpha_pict != ps->alpha_picts[0]) {
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XRenderComposite(ps->dpy, PictOpOver, ps->black_picture,
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w->dim_alpha_pict, ps->tgt_buffer, 0, 0, 0, 0, x, y, wid, hei);
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if (w->dim) {
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double dim_opacity = ps->o.inactive_dim;
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if (!ps->o.inactive_dim_fixed)
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dim_opacity *= get_opacity_percent(w);
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switch (ps->o.backend) {
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case BKEND_XRENDER:
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{
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unsigned short cval = 0xffff * dim_opacity;
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// Premultiply color
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XRenderColor color = {
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.red = 0, .green = 0, .blue = 0, .alpha = cval,
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};
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XRectangle rect = {
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.x = x,
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.y = y,
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.width = wid,
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.height = hei,
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};
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XRenderFillRectangles(ps->dpy, PictOpOver, ps->tgt_buffer, &color,
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&rect, 1);
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}
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break;
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#ifdef CONFIG_VSYNC_OPENGL
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case BKEND_GLX:
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glx_dim_dst(ps, x, y, wid, hei, ps->glx_z - 0.7, dim_opacity);
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break;
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#endif
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}
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}
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}
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@ -2584,7 +2602,6 @@ add_win(session_t *ps, Window id, Window prev) {
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.prop_shadow = -1,
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.dim = false,
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.dim_alpha_pict = None,
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.invert_color = false,
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.invert_color_force = UNSET,
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@ -4174,6 +4191,8 @@ usage(void) {
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"--blur-background-fixed\n"
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" Use fixed blur strength instead of adjusting according to window\n"
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" opacity.\n"
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"--blur-background-exclude condition\n"
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" Exclude conditions for background blur.\n"
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"--invert-color-include condition\n"
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" Specify a list of conditions of windows that should be painted with\n"
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" inverted color. Resource-hogging, and is not well tested.\n"
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136
src/opengl.c
136
src/opengl.c
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@ -194,7 +194,6 @@ glx_init_blur(session_t *ps) {
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if (ps->o.glx_no_stencil) {
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printf_errf("(): I'm afraid blur background won't work so well without "
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"stencil buffer support.");
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return false;
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}
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// Build shader
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@ -738,6 +737,37 @@ glx_blur_dst(session_t *ps, int dx, int dy, int width, int height, float z,
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return true;
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}
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bool
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glx_dim_dst(session_t *ps, int dx, int dy, int width, int height, float z,
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GLfloat factor) {
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// It's possible to dim in glx_render(), but it would be over-complicated
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// considering all those mess in color negation and modulation
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glEnable(GL_BLEND);
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glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
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glColor4f(0.0f, 0.0f, 0.0f, factor);
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glBegin(GL_QUADS);
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{
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GLint rdx = dx;
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GLint rdy = ps->root_height - dy;
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GLint rdxe = rdx + width;
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GLint rdye = rdy - height;
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glVertex3i(rdx, rdy, z);
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glVertex3i(rdxe, rdy, z);
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glVertex3i(rdxe, rdye, z);
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glVertex3i(rdx, rdye, z);
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}
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glEnd();
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glColor4f(0.0f, 0.0f, 0.0f, 0.0f);
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glDisable(GL_BLEND);
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return true;
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}
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/**
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* @brief Render a region with texture data.
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*/
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@ -750,16 +780,23 @@ glx_render(session_t *ps, const glx_texture_t *ptex,
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return false;
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}
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const bool argb = (GLX_TEXTURE_FORMAT_RGBA_EXT ==
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ps->glx_fbconfigs[ptex->depth]->texture_fmt);
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bool dual_texture = false;
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// It's required by legacy versions of OpenGL to enable texture target
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// before specifying environment. Thanks to madsy for telling me.
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glEnable(ptex->target);
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// Enable blending if needed
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if (opacity < 1.0 || GLX_TEXTURE_FORMAT_RGBA_EXT ==
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ps->glx_fbconfigs[ptex->depth]->texture_fmt) {
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if (opacity < 1.0 || argb) {
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glEnable(GL_BLEND);
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// Needed for handling opacity of ARGB texture
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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// This is all weird, but X Render is using premulitplied ARGB format, and
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// This is all weird, but X Render is using premultiplied ARGB format, and
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// we need to use those things to correct it. Thanks to derhass for help.
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glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
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glColor4f(opacity, opacity, opacity, opacity);
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@ -772,11 +809,68 @@ glx_render(session_t *ps, const glx_texture_t *ptex,
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glEnable(GL_COLOR_LOGIC_OP);
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glLogicOp(GL_COPY_INVERTED);
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}
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// Blending color negation
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// ARGB texture color negation
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else if (argb) {
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dual_texture = true;
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// Use two texture stages because the calculation is too complicated,
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// thanks to madsy for providing code
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// Texture stage 0
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glActiveTexture(GL_TEXTURE0);
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// Negation for premultiplied color: color = A - C
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_SUBTRACT);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, GL_TEXTURE);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_ALPHA);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, GL_TEXTURE);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR);
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// Pass texture alpha through
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, GL_TEXTURE);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
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// Texture stage 1
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glActiveTexture(GL_TEXTURE1);
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glEnable(ptex->target);
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glBindTexture(ptex->target, ptex->texture);
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
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// Modulation with constant factor
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_MODULATE);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, GL_PREVIOUS);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, GL_PRIMARY_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_ALPHA);
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// Modulation with constant factor
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_MODULATE);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, GL_PREVIOUS);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA, GL_PRIMARY_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA, GL_SRC_ALPHA);
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glActiveTexture(GL_TEXTURE0);
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}
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// RGB blend color negation
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else {
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
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glTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_REPLACE);
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glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_ONE_MINUS_SRC_COLOR);
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// Modulation with constant factor
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_MODULATE);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, GL_TEXTURE);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_ONE_MINUS_SRC_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, GL_PRIMARY_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR);
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// Modulation with constant factor
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_MODULATE);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, GL_TEXTURE);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA, GL_PRIMARY_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA, GL_SRC_ALPHA);
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}
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}
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@ -807,8 +901,12 @@ glx_render(session_t *ps, const glx_texture_t *ptex,
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rects = XFixesFetchRegion(ps->dpy, reg_new, &nrects);
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}
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glEnable(ptex->target);
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glBindTexture(ptex->target, ptex->texture);
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if (dual_texture) {
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glActiveTexture(GL_TEXTURE1);
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glBindTexture(ptex->target, ptex->texture);
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glActiveTexture(GL_TEXTURE0);
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}
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glBegin(GL_QUADS);
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@ -833,16 +931,23 @@ glx_render(session_t *ps, const glx_texture_t *ptex,
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printf_dbgf("(): Rect %d: %f, %f, %f, %f -> %d, %d, %d, %d\n", i, rx, ry, rxe, rye, rdx, rdy, rdxe, rdye);
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#endif
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glTexCoord2f(rx, ry);
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#define P_TEXCOORD(cx, cy) { \
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if (dual_texture) { \
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glMultiTexCoord2f(GL_TEXTURE0, cx, cy); \
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glMultiTexCoord2f(GL_TEXTURE1, cx, cy); \
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} \
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else glTexCoord2f(cx, cy); \
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}
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P_TEXCOORD(rx, ry);
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glVertex3i(rdx, rdy, z);
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glTexCoord2f(rxe, ry);
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P_TEXCOORD(rxe, ry);
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glVertex3i(rdxe, rdy, z);
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glTexCoord2f(rxe, rye);
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P_TEXCOORD(rxe, rye);
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glVertex3i(rdxe, rdye, z);
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glTexCoord2f(rx, rye);
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P_TEXCOORD(rx, rye);
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glVertex3i(rdx, rdye, z);
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}
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@ -861,6 +966,13 @@ glx_render(session_t *ps, const glx_texture_t *ptex,
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glDisable(GL_COLOR_LOGIC_OP);
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glDisable(ptex->target);
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if (dual_texture) {
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glActiveTexture(GL_TEXTURE1);
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glBindTexture(ptex->target, 0);
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glDisable(ptex->target);
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glActiveTexture(GL_TEXTURE0);
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}
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return true;
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}
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