From: Dana Jansens <danakj@orodu.net>
Date: Tue, 27 May 2003 03:19:33 +0000 (+0000)
Subject: lots of API additions that I didn't forsee until putting it into use.
X-Git-Tag: gl2~90
X-Git-Url: http://git.openbox.org/?a=commitdiff_plain;h=0221b7104192f6f71ca45eabf78633c70885bbb8;p=dana%2Fopenbox.git

lots of API additions that I didn't forsee until putting it into use.
---

diff --git a/render2/Makefile.am b/render2/Makefile.am
index 9b2792d9..36a3c081 100644
--- a/render2/Makefile.am
+++ b/render2/Makefile.am
@@ -17,7 +17,6 @@ rendertest_SOURCES=test.c
 lib_LTLIBRARIES=libobrender2.la
 libobrender2_la_LIBADD=-lglft -L../glft
 libobrender2_la_SOURCES=\
-	init.c \
 	instance.c \
 	color.c \
 	debug.c \
diff --git a/render2/instance.c b/render2/instance.c
index b694721e..f48593c3 100644
--- a/render2/instance.c
+++ b/render2/instance.c
@@ -1,54 +1,109 @@
 #include "instance.h"
+#include "debug.h"
+#include "glft/glft.h"
 #include <stdlib.h>
 #include <assert.h>
 
-/*
-void truecolor_startup(void)
+static int glft_init = 0;
+
+static int glx_rating(Display *display, XVisualInfo *v)
 {
-  unsigned long red_mask, green_mask, blue_mask;
-  XImage *timage = NULL;
-
-  timage = XCreateImage(ob_display, render_visual, render_depth,
-                        ZPixmap, 0, NULL, 1, 1, 32, 0);
-  assert(timage != NULL);
-  /\* find the offsets for each color in the visual's masks *\/
-  render_red_mask = red_mask = timage->red_mask;
-  render_green_mask = green_mask = timage->green_mask;
-  render_blue_mask = blue_mask = timage->blue_mask;
-
-  render_red_offset = 0;
-  render_green_offset = 0;
-  render_blue_offset = 0;
-
-  while (! (red_mask & 1))   { render_red_offset++;   red_mask   >>= 1; }
-  while (! (green_mask & 1)) { render_green_offset++; green_mask >>= 1; }
-  while (! (blue_mask & 1))  { render_blue_offset++;  blue_mask  >>= 1; }
-
-  render_red_shift = render_green_shift = render_blue_shift = 8;
-  while (red_mask)   { red_mask   >>= 1; render_red_shift--;   }
-  while (green_mask) { green_mask >>= 1; render_green_shift--; }
-  while (blue_mask)  { blue_mask  >>= 1; render_blue_shift--;  }
-  XFree(timage);
+    int rating = 0;
+    int val;
+    RrDebug("evaluating visual %d\n", (int)v->visualid);
+    glXGetConfig(display, v, GLX_BUFFER_SIZE, &val);
+    RrDebug("buffer size %d\n", val);
+
+    switch (val) {
+    case 32:
+        rating += 300;
+    break;
+    case 24:
+        rating += 200;
+    break;
+    case 16:
+        rating += 100;
+    break;
+    }
+
+    glXGetConfig(display, v, GLX_LEVEL, &val);
+    RrDebug("level %d\n", val);
+    if (val != 0)
+        rating = -10000;
+
+    glXGetConfig(display, v, GLX_DEPTH_SIZE, &val);
+    RrDebug("depth size %d\n", val);
+    switch (val) {
+    case 32:
+        rating += 30;
+    break;
+    case 24:
+        rating += 20;
+    break;
+    case 16:
+        rating += 10;
+    break;
+    case 0:
+        rating -= 10000;
+    }
+
+    glXGetConfig(display, v, GLX_DOUBLEBUFFER, &val);
+    RrDebug("double buffer %d\n", val);
+    if (val)
+        rating++;
+    return rating;
 }
-*/
 
-struct RrInstance *RrInstanceNew(Display *display,
-                                 int screen,
-                                 XVisualInfo visinfo)
+struct RrInstance *RrInstanceNew(Display *display, int screen)
 {
-    struct RrInstance *inst;
+    int count, i = 0, val, best = 0, rate = 0, temp;
+    XVisualInfo vimatch, *vilist;
+
+    vimatch.screen = screen;
+    vimatch.class = TrueColor;
+    vilist = XGetVisualInfo(display, VisualScreenMask | VisualClassMask,
+                            &vimatch, &count);
+
+    if (vilist) {
+        RrDebug("looking for a GL visual in %d visuals\n", count);
+        for (i = 0; i < count; i++) {
+            glXGetConfig(display, &vilist[i], GLX_USE_GL, &val);
+            if (val) {
+                temp = glx_rating(display, &vilist[i]);
+                if (temp > rate) {
+                    best = i;
+                    rate = temp;
+                }
+            }
+        }
+    }
+    if (rate > 0) {
+        struct RrInstance *inst;
+
+        RrDebug("picked visual %d with rating %d\n", best, rate);
+
+        if (!glft_init) {
+            if (!GlftInit())
+                return NULL;
+            glft_init = 1;
+        }
 
-    inst = malloc(sizeof(struct RrInstance));
-    inst->display = display;
-    inst->screen = screen;
-    inst->visinfo = visinfo;
-    inst->cmap = XCreateColormap(display, RootWindow(display, screen),
-                                 RrVisual(inst), AllocNone);
-    inst->glx_context = glXCreateContext(display, &visinfo, NULL, True);
+        inst = malloc(sizeof(struct RrInstance));
+        inst->display = display;
+        inst->screen = screen;
+        inst->visinfo = vilist[best];
+        inst->cmap = XCreateColormap(display, RootWindow(display, screen),
+                                     RrVisual(inst), AllocNone);
+        inst->glx_context = glXCreateContext(display, &vilist[best],
+                                             NULL, True);
 
-    assert(inst->glx_context);
+        assert(inst->glx_context);
 
-    return inst;
+        return inst;
+    }
+
+    RrDebug("unable to find a suitable GL visual\n");
+    return NULL;
 }
 
 void RrInstanceFree(struct RrInstance *inst)
@@ -59,3 +114,18 @@ void RrInstanceFree(struct RrInstance *inst)
         free(inst);
     }
 }
+
+int RrInstanceDepth(struct RrInstance *inst)
+{
+    return inst->visinfo.depth;
+}
+
+Colormap RrInstanceColormap(struct RrInstance *inst)
+{
+    return inst->cmap;
+}
+
+Visual *RrInstanceVisual(struct RrInstance *inst)
+{
+    return inst->visinfo.visual;
+}
diff --git a/render2/instance.h b/render2/instance.h
index da55fd81..94b194ab 100644
--- a/render2/instance.h
+++ b/render2/instance.h
@@ -13,12 +13,6 @@ struct RrInstance {
     GLXContext glx_context;
 };
 
-struct RrInstance *RrInstanceNew(Display *display,
-                                 int screen,
-                                 XVisualInfo visinfo);
-void RrInstanceFree(struct RrInstance *inst);
-
-
 #define RrDisplay(i)  ((i)->display)
 #define RrScreen(i)   ((i)->screen)
 #define RrScreenWidth(i) (WidthOfScreen(ScreenOfDisplay((i)->display, \
diff --git a/render2/paint.c b/render2/paint.c
index d37290c8..acbe8930 100644
--- a/render2/paint.c
+++ b/render2/paint.c
@@ -15,7 +15,9 @@ void RrPaint(struct RrSurface *sur)
 void RrPaintArea(struct RrSurface *sur, int x, int y, int w, int h)
 {
     struct RrInstance *inst;
+    struct RrSurface *p;
     int ok;
+    int surx, sury;
 
     inst = RrSurfaceInstance(sur);
 
@@ -30,6 +32,10 @@ void RrPaintArea(struct RrSurface *sur, int x, int y, int w, int h)
     if (!(x + w <= RrSurfaceWidth(sur) && y + h <= RrSurfaceHeight(sur)))
         return;
 
+    /* XXX recurse and paint children */
+
+    if (!RrSurfaceVisible(sur)) return;
+
     RrDebug("making %p, %p, %p current\n",
             RrDisplay(inst), RrSurfaceWindow(sur), RrContext(inst));
 
@@ -48,13 +54,23 @@ void RrPaintArea(struct RrSurface *sur, int x, int y, int w, int h)
                  RrScreenHeight(inst)-RrSurfaceHeight(sur)-RrSurfaceY(sur), 0);
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
+    p = sur;
+    surx = sury = 0;
+    while (p) {
+        surx += RrSurfaceX(p);
+        sury += RrSurfaceY(p);
+        p = p->parent;
+    }
+
     switch (RrSurfaceType(sur)) {
     case RR_SURFACE_PLANAR:
-        RrPlanarPaint(sur, RrSurfaceX(sur) + x, RrSurfaceY(sur) + y, w, h);
+        RrPlanarPaint(sur, surx + x, sury + y, w, h);
         break;
     case RR_SURFACE_NONPLANAR:
         assert(0);
         break;
+    case RR_SURFACE_NONE:
+        break;
     }
 
     glXSwapBuffers(RrDisplay(inst), RrSurfaceWindow(sur));
diff --git a/render2/planar.c b/render2/planar.c
index 05498bbd..945427c9 100644
--- a/render2/planar.c
+++ b/render2/planar.c
@@ -285,3 +285,9 @@ void RrPlanarPaint(struct RrSurface *sur, int x, int y, int w, int h)
         break;
     }
 }
+
+void RrPlanarMinSize(struct RrSurface *sur, int *w, int *h)
+{
+    *w = 0;
+    *h = 0;
+}
diff --git a/render2/planar.h b/render2/planar.h
index 876601c7..c22c2386 100644
--- a/render2/planar.h
+++ b/render2/planar.h
@@ -16,4 +16,6 @@ struct RrPlanarSurface {
 
 void RrPlanarPaint(struct RrSurface *sur, int x, int y, int w, int h);
 
+void RrPlanarMinSize(struct RrSurface *sur, int *w, int *h);
+
 #endif
diff --git a/render2/render.h b/render2/render.h
index bdb01527..f70dfadc 100644
--- a/render2/render.h
+++ b/render2/render.h
@@ -4,7 +4,7 @@
 #include <glib.h>
 #include <X11/Xlib.h>
 
-/* initialization */
+/* instances */
 
 struct RrInstance;
 
@@ -13,15 +13,18 @@ struct RrInstance;
   @param display The X Display to use.
   @param screen The number of the screen to use.
 */
-struct RrInstance *RrInit(Display *display,
-                          int screen);
+struct RrInstance *RrInstanceNew(Display *display,
+                                 int screen);
 
 /*! Destroys an instance of the library. The instance should not be used after
   calling this function.
   @param inst The instance to destroy.
 */
-void RrDestroy(struct RrInstance *inst);
+void RrInstanceFree(struct RrInstance *inst);
 
+int RrInstanceDepth(struct RrInstance *inst);
+Colormap RrInstanceColormap(struct RrInstance *inst);
+Visual *RrInstanceVisual(struct RrInstance *inst);
 
 /* colors */
 
@@ -72,6 +75,7 @@ int RrFontMaxCharWidth(struct RrFont *font);
 struct RrSurface;
 
 enum RrSurfaceType {
+    RR_SURFACE_NONE,
     RR_SURFACE_PLANAR,
     RR_SURFACE_NONPLANAR
 };
@@ -80,22 +84,27 @@ enum RrSurfaceType {
  copied to a new RrSurface that can render. */
 struct RrSurface *RrSurfaceNewProto(enum RrSurfaceType type,
                                     int numtex);
-/*! Create a new top-level RrSurface for a Window. */
+/*! Create a new top-level RrSurface for a Window. The new RrSurface defaults
+  to a non-visible state.*/
 struct RrSurface *RrSurfaceNew(struct RrInstance *inst,
                                enum RrSurfaceType type,
                                Window win,
                                int numtex);
-/*! Create a new RrSurface which is a child of another. */
+/*! Create a new RrSurface which is a child of another. The new RrSurface
+  defaults to a visible state. */
 struct RrSurface *RrSurfaceNewChild(enum RrSurfaceType type,
                                     struct RrSurface *parent,
                                     int numtex);
-/*! Copy an RrSurface, creating a new top-level RrSurface for a Window. */
+/*! Copy an RrSurface, creating a new top-level RrSurface for a Window. The
+  new RrSurface defaults to a non-visible state.*/
 struct RrSurface *RrSurfaceCopy(struct RrInstance *inst,
                                 struct RrSurface *sur,
                                 Window win);
-/*! Copy an RrSurface, creating a nwe RrSurface which is a child of another. */
+/*! Copy an RrSurface, creating a nwe RrSurface which is a child of another.
+  The new RrSurface defaults to a visible state.*/
 struct RrSurface *RrSurfaceCopyChild(struct RrSurface *sur,
                                      struct RrSurface *parent);
+/*! Destroys an RrSurface. */
 void RrSurfaceFree(struct RrSurface *sur);
 
 void RrSurfaceSetArea(struct RrSurface *sur,
@@ -106,6 +115,12 @@ void RrSurfaceSetArea(struct RrSurface *sur,
 
 Window RrSurfaceWindow(struct RrSurface *sur);
 
+void RrSurfaceShow(struct RrSurface *sur);
+void RrSurfaceHide(struct RrSurface *sur);
+int RrSurfaceVisible(struct RrSurface *sur);
+
+void RrSurfaceMinSize(struct RrSurface *sur, int *w, int *h);
+
 /* planar surfaces */
 
 /*! The options available for the background of an RrSurface */
diff --git a/render2/surface.c b/render2/surface.c
index b436f6e1..3bad5ced 100644
--- a/render2/surface.c
+++ b/render2/surface.c
@@ -22,6 +22,7 @@ static struct RrSurface *surface_new(enum RrSurfaceType type,
     sur->y = 0;
     sur->w = 1;
     sur->h = 1;
+    sur->visible = 0;
     return sur;
 }
 
@@ -30,7 +31,6 @@ static Window create_window(struct RrInstance *inst, Window parent)
     Window win = XCreateWindow(RrDisplay(inst), parent, 0, 0, 1, 1, 0,
                                RrDepth(inst), InputOutput, RrVisual(inst),
                                0, NULL);
-    XMapWindow(RrDisplay(inst), win);
     return win;
 }
 
@@ -43,6 +43,7 @@ struct RrSurface *RrSurfaceNewProto(enum RrSurfaceType type,
     sur->inst = NULL;
     sur->win = None;
     sur->parent = NULL;
+    sur->visible = 0;
     return sur;
 }
 
@@ -57,6 +58,7 @@ struct RrSurface *RrSurfaceNew(struct RrInstance *inst,
     sur->inst = inst;
     sur->win = win;
     sur->parent = NULL;
+    sur->visible = 0;
     return sur;
 }
 
@@ -74,6 +76,7 @@ struct RrSurface *RrSurfaceNewChild(enum RrSurfaceType type,
     sur->inst = parent->inst;
     sur->win = create_window(sur->inst, parent->win);
     sur->parent = parent;
+    RrSurfaceShow(sur);
     return sur;
 }
 
@@ -91,6 +94,8 @@ static struct RrSurface *surface_copy(struct RrSurface *orig)
     case RR_SURFACE_NONPLANAR:
         assert(0);
         break;
+    case RR_SURFACE_NONE:
+        break;
     }
     sur->ntextures = orig->ntextures;
     sur->texture = malloc(sizeof(struct RrTexture) * sur->ntextures);
@@ -109,6 +114,7 @@ struct RrSurface *RrSurfaceCopy(struct RrInstance *inst,
     sur->inst = inst;
     sur->win = win;
     sur->parent = NULL;
+    sur->visible = 0;
     return sur;
 }
 
@@ -125,12 +131,16 @@ struct RrSurface *RrSurfaceCopyChild(struct RrSurface *orig,
     sur->inst = parent->inst;
     sur->win = create_window(sur->inst, parent->win);
     sur->parent = parent;
+    RrSurfaceShow(sur);
     return sur;
 }
 
 void RrSurfaceFree(struct RrSurface *sur)
 {
+    int i;
     if (sur) {
+        for (i = 0; i < sur->ntextures; ++i)
+            RrTextureFreeContents(&sur->texture[i]);
         if (sur->ntextures)
             free(sur->texture);
         if (sur->parent && sur->win)
@@ -145,10 +155,15 @@ void RrSurfaceSetArea(struct RrSurface *sur,
                       int w,
                       int h)
 {
+    assert(w > 0 && h > 0);
+    if (!(w > 0 && h > 0)) return;
+
     sur->x = x;
     sur->y = y;
     sur->w = w;
     sur->h = h;
+    if (sur->win)
+        XMoveResizeWindow(RrDisplay(sur->inst), sur->win, x, y, w, h);
 }
 
 Window RrSurfaceWindow(struct RrSurface *sur)
@@ -165,3 +180,66 @@ struct RrTexture *RrSurfaceTexture(struct RrSurface *sur, int texnum)
     assert(texnum < sur->ntextures);
     return &(sur->texture[texnum]);
 }
+
+void RrSurfaceMinSize(struct RrSurface *sur, int *w, int *h)
+{
+    int i;
+    int minw, minh;
+
+    switch(sur->type) {
+    case RR_SURFACE_NONE:
+        *w = *h = 0;
+        break;
+    case RR_SURFACE_PLANAR:
+        RrPlanarMinSize(sur, w, h);
+        break;
+    case RR_SURFACE_NONPLANAR:
+        assert(0);
+        break;
+    }
+
+    for (i = 0; i < sur->ntextures; ++i) {
+        switch (sur->texture[i].type) {
+        case RR_TEXTURE_NONE:
+            minw = MAX(minw, 0);
+            minh = MAX(minh, 0);
+            break;
+        case RR_TEXTURE_TEXT:
+            /* XXX MEASUER STRING PLS */
+            minw = MAX(minw, 100 /*MEASURESTRING*/); 
+            minh = MAX(minh, 10  /*HEIGHTOFFONT*/);
+            break;
+        case RR_TEXTURE_RGBA:
+            minw = MAX(minw, (sur->texture[i].data.rgba.x +
+                              sur->texture[i].data.rgba.w));
+            minh = MAX(minw, (sur->texture[i].data.rgba.y +
+                              sur->texture[i].data.rgba.h));
+            break;
+        }
+    }
+
+    *w += minw;
+    *h += minh;
+    /* zeros are bad. */
+    if (*w == 0) *w = 1;
+    if (*h == 0) *h = 1;
+}
+
+void RrSurfaceShow(struct RrSurface *sur)
+{
+    sur->visible = 1;
+    if (sur->win)
+        XMapWindow(RrDisplay(sur->inst), sur->win);
+}
+
+void RrSurfaceHide(struct RrSurface *sur)
+{
+    sur->visible = 0;
+    if (sur->win)
+        XUnmapWindow(RrDisplay(sur->inst), sur->win);
+}
+
+int RrSurfaceVisible(struct RrSurface *sur)
+{
+    return sur->visible;
+}
diff --git a/render2/surface.h b/render2/surface.h
index 850ba36f..a8c2448e 100644
--- a/render2/surface.h
+++ b/render2/surface.h
@@ -37,6 +37,8 @@ struct RrSurface {
     int y;
     int w;
     int h;
+
+    int visible : 1;
 };
 
 struct RrTexture *RrSurfaceTexture(struct RrSurface *sur, int texnum);
diff --git a/render2/test.c b/render2/test.c
index 9eb060f5..8001ab8f 100644
--- a/render2/test.c
+++ b/render2/test.c
@@ -57,7 +57,7 @@ int main()
     XSetWMProtocols(display, win, &delete_win, 1);
 
     /* init Render */
-    if (!(inst = RrInit(display, DefaultScreen(display)))) {
+    if (!(inst = RrInstanceNew(display, DefaultScreen(display)))) {
         fprintf(stderr, "couldn't initialize the Render library "
                 "(no suitable GL support found)\n");
         return EXIT_FAILURE;
@@ -67,7 +67,7 @@ int main()
     RrSurfaceSetArea(sur, X, Y, W, H);
     RrColorSet(&pri, 0, 0, 0, 0);
     RrColorSet(&sec, 1, 1, 1, 0);
-    RrPlanarSet(sur, RR_PLANAR_VERTICAL, &pri, &sec);
+    RrPlanarSet(sur, RR_PLANAR_PIPECROSS, &pri, &sec);
 
     quit = 0;
     while (!quit) {
@@ -102,7 +102,7 @@ int main()
 
     }
 
-    RrDestroy(inst);
+    RrInstanceFree(inst);
 
     return 1;
 }
diff --git a/render2/texture.c b/render2/texture.c
index 24726d0b..12185bc3 100644
--- a/render2/texture.c
+++ b/render2/texture.c
@@ -3,7 +3,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-void texture_free(struct RrTexture *tex)
+void RrTextureFreeContents(struct RrTexture *tex)
 {
     switch (tex->type) {
     case RR_TEXTURE_NONE:
@@ -28,7 +28,7 @@ void RrTextureSetRGBA(struct RrSurface *sur,
     struct RrTexture *tex = RrSurfaceTexture(sur, texnum);
 
     if (!tex) return;
-    texture_free(tex);
+    RrTextureFreeContents(tex);
     tex->type = RR_TEXTURE_RGBA;
     tex->data.rgba.data = data;
     tex->data.rgba.x = x;
@@ -47,7 +47,7 @@ void RrTextureSetText(struct RrSurface *sur,
     int l;
 
     if (!tex) return;
-    texture_free(tex);
+    RrTextureFreeContents(tex);
     tex->type = RR_TEXTURE_TEXT;
     tex->data.text.font = font;
     tex->data.text.layout = layout;
diff --git a/render2/texture.h b/render2/texture.h
index 5415dbb5..3737dd19 100644
--- a/render2/texture.h
+++ b/render2/texture.h
@@ -23,6 +23,10 @@ struct RrTextureRGBA {
     int h;
 };
 
+struct RrTexture;
+
+void RrTextureFreeContents(struct RrTexture *tex);
+
 union RrTextureData {
     struct RrTextureText text;
     struct RrTextureRGBA rgba;