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Diffstat (limited to 'src/gallium/state_trackers/dri2/dri_screen.c')
-rw-r--r--src/gallium/state_trackers/dri2/dri_screen.c259
1 files changed, 259 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/dri2/dri_screen.c b/src/gallium/state_trackers/dri2/dri_screen.c
new file mode 100644
index 00000000000..1fef5382946
--- /dev/null
+++ b/src/gallium/state_trackers/dri2/dri_screen.c
@@ -0,0 +1,259 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+/*
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#include "utils.h"
+#include "vblank.h"
+#include "xmlpool.h"
+
+#include "dri_screen.h"
+#include "dri_context.h"
+#include "dri_drawable.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_inlines.h"
+#include "state_tracker/drm_api.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_cb_fbo.h"
+
+
+PUBLIC const char __driConfigOptions[] =
+ DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
+ DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
+ DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
+ DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
+ /*DRI_CONF_FORCE_S3TC_ENABLE(false)*/
+ DRI_CONF_ALLOW_LARGE_TEXTURES(1)
+ DRI_CONF_SECTION_END DRI_CONF_END;
+
+
+const uint __driNConfigOptions = 3;
+
+
+static const __DRIextension *dri_screen_extensions[] = {
+ &driReadDrawableExtension,
+ &driCopySubBufferExtension.base,
+ &driSwapControlExtension.base,
+ &driFrameTrackingExtension.base,
+ &driMediaStreamCounterExtension.base,
+ NULL
+};
+
+
+static void
+dri_get_drm_minor(struct dri_screen *screen)
+{
+ /* TODO get the real minor */
+ screen->minor = 0;
+}
+
+
+static void
+dri_get_device_id(struct dri_screen *screen)
+{
+ char path[512];
+ FILE *file;
+
+ /*
+ * There must be a better way to get the deviceID.
+ * XXX this only works on Linux.
+ */
+ snprintf(path, sizeof(path), "/sys/class/drm/card%d/device/device", screen->minor);
+ file = fopen(path, "r");
+ if (!file) {
+ return;
+ }
+
+ fgets(path, sizeof(path), file);
+ sscanf(path, "%x", &screen->deviceID);
+ fclose(file);
+}
+
+
+static const __DRIconfig **
+dri_fill_in_modes(__DRIscreenPrivate *psp,
+ unsigned pixel_bits, unsigned depth_bits,
+ unsigned stencil_bits, GLboolean have_back_buffer)
+{
+ __DRIconfig **configs;
+ __GLcontextModes *m;
+ unsigned num_modes;
+ uint8_t depth_bits_array[3];
+ uint8_t stencil_bits_array[3];
+ uint8_t msaa_samples_array[1];
+ unsigned depth_buffer_factor;
+ unsigned back_buffer_factor;
+ unsigned msaa_samples_factor;
+ GLenum fb_format;
+ GLenum fb_type;
+ int i;
+
+ static const GLenum back_buffer_modes[] = {
+ GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+ };
+
+ /* TODO probe the hardware of what is supports */
+ depth_bits_array[0] = 0;
+ depth_bits_array[1] = 24;
+ depth_bits_array[2] = 24;
+
+ stencil_bits_array[0] = 0; /* no depth or stencil */
+ stencil_bits_array[1] = 0; /* z24x8 */
+ stencil_bits_array[2] = 8; /* z24s8 */
+
+ msaa_samples_array[0] = 0;
+
+ depth_buffer_factor = 3;
+ back_buffer_factor = 3;
+ msaa_samples_factor = 1;
+
+ num_modes = depth_buffer_factor * back_buffer_factor * msaa_samples_factor * 4;
+
+ if (pixel_bits == 16) {
+ fb_format = GL_RGB;
+ fb_type = GL_UNSIGNED_SHORT_5_6_5;
+ }
+ else {
+ fb_format = GL_BGRA;
+ fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+ }
+
+ configs = driCreateConfigs(fb_format, fb_type,
+ depth_bits_array,
+ stencil_bits_array, depth_buffer_factor,
+ back_buffer_modes, back_buffer_factor,
+ msaa_samples_array, msaa_samples_factor);
+ if (configs == NULL) {
+ debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
+ return NULL;
+ }
+
+ for (i = 0; configs[i]; i++) {
+ m = &configs[i]->modes;
+ if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
+ m->visualRating = GLX_SLOW_CONFIG;
+ }
+ }
+
+ return (const const __DRIconfig **) configs;
+}
+
+
+/**
+ * Get information about previous buffer swaps.
+ */
+int
+dri_get_swap_info(__DRIdrawablePrivate * dPriv,
+ __DRIswapInfo * sInfo)
+{
+ if (dPriv == NULL ||
+ dPriv->driverPrivate == NULL ||
+ sInfo == NULL)
+ return -1;
+ else
+ return 0;
+}
+
+
+/**
+ * This is the driver specific part of the createNewScreen entry point.
+ *
+ * Returns the __GLcontextModes supported by this driver.
+ */
+const __DRIconfig **
+dri_init_screen2(__DRIscreenPrivate *sPriv)
+{
+ struct dri_screen *screen;
+
+ /* Set up dispatch table to cope with all known extensions */
+ dri_init_extensions(NULL);
+
+ screen = CALLOC_STRUCT(dri_screen);
+ if (!screen)
+ goto fail;
+
+ screen->sPriv = sPriv;
+ screen->fd = sPriv->fd;
+ dri_get_drm_minor(screen);
+ dri_get_device_id(screen);
+ sPriv->private = (void *) screen;
+ sPriv->extensions = dri_screen_extensions;
+
+
+ screen->pipe_screen = drm_api_hocks.create_screen(screen->fd, screen->deviceID);
+ if (!screen->pipe_screen) {
+ debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
+ goto fail;
+ }
+
+ driParseOptionInfo(&screen->optionCache,
+ __driConfigOptions,
+ __driNConfigOptions);
+
+ return dri_fill_in_modes(sPriv,
+ 4 * 8,
+ 24,
+ 8,
+ 1);
+fail:
+ return NULL;
+}
+
+
+void
+dri_destroy_screen(__DRIscreenPrivate * sPriv)
+{
+ struct dri_screen *screen = dri_screen(sPriv);
+
+ screen->pipe_screen->destroy(screen->pipe_screen);
+ FREE(screen);
+ sPriv->private = NULL;
+}
+
+
+PUBLIC const struct __DriverAPIRec driDriverAPI = {
+ .InitScreen = NULL,
+ .DestroyScreen = dri_destroy_screen,
+ .CreateContext = dri_create_context,
+ .DestroyContext = dri_destroy_context,
+ .CreateBuffer = dri_create_buffer,
+ .DestroyBuffer = dri_destroy_buffer,
+ .SwapBuffers = dri_swap_buffers,
+ .MakeCurrent = dri_make_current,
+ .UnbindContext = dri_unbind_context,
+ .GetSwapInfo = dri_get_swap_info,
+ .GetDrawableMSC = driDrawableGetMSC32,
+ .WaitForMSC = driWaitForMSC32,
+ .CopySubBuffer = dri_copy_sub_buffer,
+ .InitScreen2 = dri_init_screen2,
+};
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 00:28:37 +0000