aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/glx/glxscreens.c
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/glx/glxscreens.c')
-rw-r--r--xorg-server/glx/glxscreens.c604
1 files changed, 604 insertions, 0 deletions
diff --git a/xorg-server/glx/glxscreens.c b/xorg-server/glx/glxscreens.c
new file mode 100644
index 000000000..f4839b32c
--- /dev/null
+++ b/xorg-server/glx/glxscreens.c
@@ -0,0 +1,604 @@
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+**
+** http://oss.sgi.com/projects/FreeB
+**
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+**
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <GL/glxtokens.h>
+#include <string.h>
+#include <windowstr.h>
+#include <os.h>
+#include <colormapst.h>
+
+#include "privates.h"
+#include "glxserver.h"
+#include "glxutil.h"
+#include "glxext.h"
+
+static DevPrivateKey glxScreenPrivateKey = &glxScreenPrivateKey;
+
+const char GLServerVersion[] = "1.4";
+static const char GLServerExtensions[] =
+ "GL_ARB_depth_texture "
+ "GL_ARB_draw_buffers "
+ "GL_ARB_fragment_program "
+ "GL_ARB_fragment_program_shadow "
+ "GL_ARB_imaging "
+ "GL_ARB_multisample "
+ "GL_ARB_multitexture "
+ "GL_ARB_occlusion_query "
+ "GL_ARB_point_parameters "
+ "GL_ARB_point_sprite "
+ "GL_ARB_shadow "
+ "GL_ARB_shadow_ambient "
+ "GL_ARB_texture_border_clamp "
+ "GL_ARB_texture_compression "
+ "GL_ARB_texture_cube_map "
+ "GL_ARB_texture_env_add "
+ "GL_ARB_texture_env_combine "
+ "GL_ARB_texture_env_crossbar "
+ "GL_ARB_texture_env_dot3 "
+ "GL_ARB_texture_mirrored_repeat "
+ "GL_ARB_texture_non_power_of_two "
+ "GL_ARB_transpose_matrix "
+ "GL_ARB_vertex_program "
+ "GL_ARB_window_pos "
+ "GL_EXT_abgr "
+ "GL_EXT_bgra "
+ "GL_EXT_blend_color "
+ "GL_EXT_blend_equation_separate "
+ "GL_EXT_blend_func_separate "
+ "GL_EXT_blend_logic_op "
+ "GL_EXT_blend_minmax "
+ "GL_EXT_blend_subtract "
+ "GL_EXT_clip_volume_hint "
+ "GL_EXT_copy_texture "
+ "GL_EXT_draw_range_elements "
+ "GL_EXT_fog_coord "
+ "GL_EXT_framebuffer_object "
+ "GL_EXT_multi_draw_arrays "
+ "GL_EXT_packed_pixels "
+ "GL_EXT_paletted_texture "
+ "GL_EXT_point_parameters "
+ "GL_EXT_polygon_offset "
+ "GL_EXT_rescale_normal "
+ "GL_EXT_secondary_color "
+ "GL_EXT_separate_specular_color "
+ "GL_EXT_shadow_funcs "
+ "GL_EXT_shared_texture_palette "
+ "GL_EXT_stencil_two_side "
+ "GL_EXT_stencil_wrap "
+ "GL_EXT_subtexture "
+ "GL_EXT_texture "
+ "GL_EXT_texture3D "
+ "GL_EXT_texture_compression_dxt1 "
+ "GL_EXT_texture_compression_s3tc "
+ "GL_EXT_texture_edge_clamp "
+ "GL_EXT_texture_env_add "
+ "GL_EXT_texture_env_combine "
+ "GL_EXT_texture_env_dot3 "
+ "GL_EXT_texture_filter_anisotropic "
+ "GL_EXT_texture_lod "
+ "GL_EXT_texture_lod_bias "
+ "GL_EXT_texture_mirror_clamp "
+ "GL_EXT_texture_object "
+ "GL_EXT_texture_rectangle "
+ "GL_EXT_vertex_array "
+ "GL_3DFX_texture_compression_FXT1 "
+ "GL_APPLE_packed_pixels "
+ "GL_ATI_draw_buffers "
+ "GL_ATI_texture_env_combine3 "
+ "GL_ATI_texture_mirror_once "
+ "GL_HP_occlusion_test "
+ "GL_IBM_texture_mirrored_repeat "
+ "GL_INGR_blend_func_separate "
+ "GL_MESA_pack_invert "
+ "GL_MESA_ycbcr_texture "
+ "GL_NV_blend_square "
+ "GL_NV_depth_clamp "
+ "GL_NV_fog_distance "
+ "GL_NV_fragment_program "
+ "GL_NV_fragment_program_option "
+ "GL_NV_fragment_program2 "
+ "GL_NV_light_max_exponent "
+ "GL_NV_multisample_filter_hint "
+ "GL_NV_point_sprite "
+ "GL_NV_texgen_reflection "
+ "GL_NV_texture_compression_vtc "
+ "GL_NV_texture_env_combine4 "
+ "GL_NV_texture_expand_normal "
+ "GL_NV_texture_rectangle "
+ "GL_NV_vertex_program "
+ "GL_NV_vertex_program1_1 "
+ "GL_NV_vertex_program2 "
+ "GL_NV_vertex_program2_option "
+ "GL_NV_vertex_program3 "
+ "GL_OES_compressed_paletted_texture "
+ "GL_SGI_color_matrix "
+ "GL_SGI_color_table "
+ "GL_SGIS_generate_mipmap "
+ "GL_SGIS_multisample "
+ "GL_SGIS_point_parameters "
+ "GL_SGIS_texture_border_clamp "
+ "GL_SGIS_texture_edge_clamp "
+ "GL_SGIS_texture_lod "
+ "GL_SGIX_depth_texture "
+ "GL_SGIX_shadow "
+ "GL_SGIX_shadow_ambient "
+ "GL_SUN_slice_accum "
+ ;
+
+/*
+** We have made the simplifying assuption that the same extensions are
+** supported across all screens in a multi-screen system.
+*/
+static char GLXServerVendorName[] = "SGI";
+static char GLXServerVersion[] = "1.2";
+static char GLXServerExtensions[] =
+ "GLX_ARB_multisample "
+ "GLX_EXT_visual_info "
+ "GLX_EXT_visual_rating "
+ "GLX_EXT_import_context "
+ "GLX_EXT_texture_from_pixmap "
+ "GLX_OML_swap_method "
+ "GLX_SGI_make_current_read "
+#ifndef __APPLE__
+ "GLX_SGIS_multisample "
+ "GLX_SGIX_hyperpipe "
+ "GLX_SGIX_swap_barrier "
+#endif
+ "GLX_SGIX_fbconfig "
+ "GLX_MESA_copy_sub_buffer "
+ ;
+
+/*
+** This hook gets called when a window moves or changes size.
+*/
+static Bool glxPositionWindow(WindowPtr pWin, int x, int y)
+{
+ ScreenPtr pScreen;
+ __GLXdrawable *glxPriv;
+ Bool ret;
+ __GLXscreen *pGlxScreen;
+
+ /*
+ ** Call wrapped position window routine
+ */
+ pScreen = pWin->drawable.pScreen;
+ pGlxScreen = glxGetScreen(pScreen);
+ pScreen->PositionWindow = pGlxScreen->PositionWindow;
+ ret = (*pScreen->PositionWindow)(pWin, x, y);
+ pScreen->PositionWindow = glxPositionWindow;
+
+ /*
+ ** Tell all contexts rendering into this window that the window size
+ ** has changed.
+ */
+ glxPriv = (__GLXdrawable *) LookupIDByType(pWin->drawable.id,
+ __glXDrawableRes);
+ if (glxPriv == NULL) {
+ /*
+ ** This window is not being used by the OpenGL.
+ */
+ return ret;
+ }
+
+ /*
+ ** resize the drawable
+ */
+ /* first change the drawable size */
+ if (glxPriv->resize(glxPriv) == GL_FALSE) {
+ /* resize failed! */
+ /* XXX: what can we possibly do here? */
+ ret = False;
+ }
+
+ return ret;
+}
+
+/*
+ * If your DDX driver wants to register support for swap barriers or hyperpipe
+ * topology, it should call __glXHyperpipeInit() or __glXSwapBarrierInit()
+ * with a dispatch table of functions to handle the requests. In the XFree86
+ * DDX, for example, you would call these near the bottom of the driver's
+ * ScreenInit method, after DRI has been initialized.
+ *
+ * This should be replaced with a better method when we teach the server how
+ * to load DRI drivers.
+ */
+
+void __glXHyperpipeInit(int screen, __GLXHyperpipeExtensionFuncs *funcs)
+{
+ __GLXscreen *pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
+
+ pGlxScreen->hyperpipeFuncs = funcs;
+}
+
+void __glXSwapBarrierInit(int screen, __GLXSwapBarrierExtensionFuncs *funcs)
+{
+ __GLXscreen *pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
+
+ pGlxScreen->swapBarrierFuncs = funcs;
+}
+
+static Bool
+glxCloseScreen (int index, ScreenPtr pScreen)
+{
+ __GLXscreen *pGlxScreen = glxGetScreen(pScreen);
+
+ pScreen->CloseScreen = pGlxScreen->CloseScreen;
+ pScreen->PositionWindow = pGlxScreen->PositionWindow;
+
+ pGlxScreen->destroy(pGlxScreen);
+
+ return pScreen->CloseScreen(index, pScreen);
+}
+
+__GLXscreen *
+glxGetScreen(ScreenPtr pScreen)
+{
+ return dixLookupPrivate(&pScreen->devPrivates, glxScreenPrivateKey);
+}
+
+void GlxSetVisualConfigs(int nconfigs,
+ __GLXvisualConfig *configs, void **privates)
+{
+ /* We keep this stub around for the DDX drivers that still
+ * call it. */
+}
+
+GLint glxConvertToXVisualType(int visualType)
+{
+ static const int x_visual_types[] = {
+ TrueColor, DirectColor,
+ PseudoColor, StaticColor,
+ GrayScale, StaticGray
+ };
+
+ return ( (unsigned) (visualType - GLX_TRUE_COLOR) < 6 )
+ ? x_visual_types[ visualType - GLX_TRUE_COLOR ] : -1;
+}
+
+
+static void
+filterOutNativeConfigs(__GLXscreen *pGlxScreen)
+{
+ __GLXconfig *m, *next, **last;
+ ScreenPtr pScreen = pGlxScreen->pScreen;
+ int i, depth;
+
+ last = &pGlxScreen->fbconfigs;
+ for (m = pGlxScreen->fbconfigs; m != NULL; m = next) {
+ next = m->next;
+ depth = m->redBits + m->blueBits + m->greenBits;
+
+ for (i = 0; i < pScreen->numVisuals; i++) {
+ if (pScreen->visuals[i].nplanes == depth) {
+ *last = m;
+ last = &m->next;
+ break;
+ }
+ }
+ }
+
+ *last = NULL;
+}
+
+static XID
+findVisualForConfig(ScreenPtr pScreen, __GLXconfig *m)
+{
+ int i;
+
+ for (i = 0; i < pScreen->numVisuals; i++) {
+ if (glxConvertToXVisualType(m->visualType) == pScreen->visuals[i].class)
+ return pScreen->visuals[i].vid;
+ }
+
+ return 0;
+}
+
+/* This code inspired by composite/compinit.c. We could move this to
+ * mi/ and share it with composite.*/
+
+static VisualPtr
+AddScreenVisuals(ScreenPtr pScreen, int count, int d)
+{
+ XID *installedCmaps, *vids, vid;
+ int numInstalledCmaps, numVisuals, i, j;
+ VisualPtr visuals;
+ ColormapPtr installedCmap;
+ DepthPtr depth;
+
+ depth = NULL;
+ for (i = 0; i < pScreen->numDepths; i++) {
+ if (pScreen->allowedDepths[i].depth == d) {
+ depth = &pScreen->allowedDepths[i];
+ break;
+ }
+ }
+ if (depth == NULL)
+ return NULL;
+
+ /* Find the installed colormaps */
+ installedCmaps = xalloc (pScreen->maxInstalledCmaps * sizeof (XID));
+ if (!installedCmaps)
+ return NULL;
+
+ numInstalledCmaps = pScreen->ListInstalledColormaps(pScreen, installedCmaps);
+
+ /* realloc the visual array to fit the new one in place */
+ numVisuals = pScreen->numVisuals;
+ visuals = xrealloc(pScreen->visuals, (numVisuals + count) * sizeof(VisualRec));
+ if (!visuals) {
+ xfree(installedCmaps);
+ return NULL;
+ }
+
+ vids = xrealloc(depth->vids, (depth->numVids + count) * sizeof(XID));
+ if (vids == NULL) {
+ xfree(installedCmaps);
+ xfree(visuals);
+ return NULL;
+ }
+
+ /*
+ * Fix up any existing installed colormaps -- we'll assume that
+ * the only ones created so far have been installed. If this
+ * isn't true, we'll have to walk the resource database looking
+ * for all colormaps.
+ */
+ for (i = 0; i < numInstalledCmaps; i++) {
+ installedCmap = LookupIDByType (installedCmaps[i], RT_COLORMAP);
+ if (!installedCmap)
+ continue;
+ j = installedCmap->pVisual - pScreen->visuals;
+ installedCmap->pVisual = &visuals[j];
+ }
+
+ xfree(installedCmaps);
+
+ for (i = 0; i < count; i++) {
+ vid = FakeClientID(0);
+ visuals[pScreen->numVisuals + i].vid = vid;
+ vids[depth->numVids + i] = vid;
+ }
+
+ pScreen->visuals = visuals;
+ pScreen->numVisuals += count;
+ depth->vids = vids;
+ depth->numVids += count;
+
+ /* Return a pointer to the first of the added visuals. */
+ return pScreen->visuals + pScreen->numVisuals - count;
+}
+
+static int
+findFirstSet(unsigned int v)
+{
+ int i;
+
+ for (i = 0; i < 32; i++)
+ if (v & (1 << i))
+ return i;
+
+ return -1;
+}
+
+static void
+initGlxVisual(VisualPtr visual, __GLXconfig *config)
+{
+ int maxBits;
+ maxBits = max(config->redBits, max(config->greenBits, config->blueBits));
+
+ config->visualID = visual->vid;
+ visual->class = glxConvertToXVisualType(config->visualType);
+ visual->bitsPerRGBValue = maxBits;
+ visual->ColormapEntries = 1 << maxBits;
+ visual->nplanes = config->redBits + config->greenBits + config->blueBits;
+
+ visual->redMask = config->redMask;
+ visual->greenMask = config->greenMask;
+ visual->blueMask = config->blueMask;
+ visual->offsetRed = findFirstSet(config->redMask);
+ visual->offsetGreen = findFirstSet(config->greenMask);
+ visual->offsetBlue = findFirstSet(config->blueMask);
+}
+
+typedef struct {
+ GLboolean doubleBuffer;
+ GLboolean depthBuffer;
+ GLboolean stencilBuffer;
+} FBConfigTemplateRec, *FBConfigTemplatePtr;
+
+static __GLXconfig *
+pickFBConfig(__GLXscreen *pGlxScreen, FBConfigTemplatePtr template, int class)
+{
+ __GLXconfig *config;
+
+ for (config = pGlxScreen->fbconfigs; config != NULL; config = config->next) {
+ if (config->visualRating != GLX_NONE)
+ continue;
+ if (glxConvertToXVisualType(config->visualType) != class)
+ continue;
+ if ((config->doubleBufferMode > 0) != template->doubleBuffer)
+ continue;
+ if ((config->depthBits > 0) != template->depthBuffer)
+ continue;
+ if ((config->stencilBits > 0) != template->stencilBuffer)
+ continue;
+
+ return config;
+ }
+
+ return NULL;
+}
+
+static void
+addMinimalSet(__GLXscreen *pGlxScreen)
+{
+ __GLXconfig *config;
+ VisualPtr visuals;
+ int i, j;
+ FBConfigTemplateRec best = { GL_TRUE, GL_TRUE, GL_TRUE };
+ FBConfigTemplateRec good = { GL_TRUE, GL_TRUE, GL_FALSE };
+ FBConfigTemplateRec minimal = { GL_FALSE, GL_FALSE, GL_FALSE };
+
+ pGlxScreen->visuals = xcalloc(pGlxScreen->pScreen->numVisuals,
+ sizeof (__GLXconfig *));
+ if (pGlxScreen->visuals == NULL) {
+ ErrorF("Failed to allocate for minimal set of GLX visuals\n");
+ return;
+ }
+
+ visuals = pGlxScreen->pScreen->visuals;
+ for (i = 0, j = 0; i < pGlxScreen->pScreen->numVisuals; i++) {
+ if (visuals[i].nplanes == 32)
+ config = pickFBConfig(pGlxScreen, &minimal, visuals[i].class);
+ else {
+ config = pickFBConfig(pGlxScreen, &best, visuals[i].class);
+ if (config == NULL)
+ config = pickFBConfig(pGlxScreen, &good, visuals[i].class);
+ }
+ if (config == NULL)
+ config = pGlxScreen->fbconfigs;
+ if (config == NULL)
+ continue;
+
+ pGlxScreen->visuals[j] = config;
+ config->visualID = visuals[i].vid;
+ j++;
+ }
+
+ pGlxScreen->numVisuals = j;
+}
+
+static void
+addTypicalSet(__GLXscreen *pGlxScreen)
+{
+ addMinimalSet(pGlxScreen);
+}
+
+static void
+addFullSet(__GLXscreen *pGlxScreen)
+{
+ __GLXconfig *config;
+ VisualPtr visuals;
+ int i, depth;
+
+ pGlxScreen->visuals =
+ xcalloc(pGlxScreen->numFBConfigs, sizeof (__GLXconfig *));
+ if (pGlxScreen->visuals == NULL) {
+ ErrorF("Failed to allocate for full set of GLX visuals\n");
+ return;
+ }
+
+ config = pGlxScreen->fbconfigs;
+ depth = config->redBits + config->greenBits + config->blueBits;
+ visuals = AddScreenVisuals(pGlxScreen->pScreen, pGlxScreen->numFBConfigs, depth);
+ if (visuals == NULL) {
+ xfree(pGlxScreen->visuals);
+ return;
+ }
+
+ pGlxScreen->numVisuals = pGlxScreen->numFBConfigs;
+ for (i = 0, config = pGlxScreen->fbconfigs; config; config = config->next, i++) {
+ pGlxScreen->visuals[i] = config;
+ initGlxVisual(&visuals[i], config);
+ }
+}
+
+static int glxVisualConfig = GLX_ALL_VISUALS;
+
+void GlxSetVisualConfig(int config)
+{
+ glxVisualConfig = config;
+}
+
+void __glXScreenInit(__GLXscreen *pGlxScreen, ScreenPtr pScreen)
+{
+ __GLXconfig *m;
+ int i;
+
+ pGlxScreen->pScreen = pScreen;
+ pGlxScreen->GLextensions = xstrdup(GLServerExtensions);
+ pGlxScreen->GLXvendor = xstrdup(GLXServerVendorName);
+ pGlxScreen->GLXversion = xstrdup(GLXServerVersion);
+ pGlxScreen->GLXextensions = xstrdup(GLXServerExtensions);
+
+ pGlxScreen->PositionWindow = pScreen->PositionWindow;
+ pScreen->PositionWindow = glxPositionWindow;
+
+ pGlxScreen->CloseScreen = pScreen->CloseScreen;
+ pScreen->CloseScreen = glxCloseScreen;
+
+ filterOutNativeConfigs(pGlxScreen);
+
+ i = 0;
+ for (m = pGlxScreen->fbconfigs; m != NULL; m = m->next) {
+ m->fbconfigID = FakeClientID(0);
+ m->visualID = findVisualForConfig(pScreen, m);
+ i++;
+ }
+ pGlxScreen->numFBConfigs = i;
+
+ /* Select a subset of fbconfigs that we send to the client when it
+ * asks for the glx visuals. All the fbconfigs here have a valid
+ * value for visual ID and each visual ID is only present once.
+ * This runs before composite adds its extra visual so we have to
+ * remember the number of visuals here.*/
+
+ switch (glxVisualConfig) {
+ case GLX_MINIMAL_VISUALS:
+ addMinimalSet(pGlxScreen);
+ break;
+ case GLX_TYPICAL_VISUALS:
+ addTypicalSet(pGlxScreen);
+ break;
+ case GLX_ALL_VISUALS:
+ addFullSet(pGlxScreen);
+ break;
+ }
+
+ dixSetPrivate(&pScreen->devPrivates, glxScreenPrivateKey, pGlxScreen);
+}
+
+void __glXScreenDestroy(__GLXscreen *screen)
+{
+ xfree(screen->GLXvendor);
+ xfree(screen->GLXversion);
+ xfree(screen->GLXextensions);
+ xfree(screen->GLextensions);
+}