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Diffstat (limited to 'src/gallium/state_trackers/dri/common/dri_screen.c')
-rw-r--r--src/gallium/state_trackers/dri/common/dri_screen.c383
1 files changed, 383 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/dri/common/dri_screen.c b/src/gallium/state_trackers/dri/common/dri_screen.c
new file mode 100644
index 0000000000..4bfbc6e80b
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_screen.c
@@ -0,0 +1,383 @@
+/**************************************************************************
+ *
+ * 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"
+#ifndef __NOT_HAVE_DRM_H
+#include "vblank.h"
+#endif
+#include "xmlpool.h"
+
+#include "dri_screen.h"
+#include "dri_context.h"
+#include "dri_drawable.h"
+#include "dri_st_api.h"
+#include "dri1_helper.h"
+#ifndef __NOT_HAVE_DRM_H
+#include "dri1.h"
+#include "dri2.h"
+#else
+#include "drisw.h"
+#endif
+
+#include "util/u_inlines.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_format.h"
+
+#include "util/u_debug.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;
+
+static const uint __driNConfigOptions = 3;
+
+static const __DRIconfig **
+dri_fill_in_modes(struct dri_screen *screen,
+ unsigned pixel_bits)
+{
+ __DRIconfig **configs = NULL;
+ __DRIconfig **configs_r5g6b5 = NULL;
+ __DRIconfig **configs_a8r8g8b8 = NULL;
+ __DRIconfig **configs_x8r8g8b8 = NULL;
+ unsigned num_modes;
+ uint8_t depth_bits_array[5];
+ uint8_t stencil_bits_array[5];
+ uint8_t msaa_samples_array[2];
+ unsigned depth_buffer_factor;
+ unsigned back_buffer_factor;
+ unsigned msaa_samples_factor;
+ struct pipe_screen *p_screen = screen->pipe_screen;
+ boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
+ boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
+
+ static const GLenum back_buffer_modes[] = {
+ GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+ };
+
+ depth_bits_array[0] = 0;
+ stencil_bits_array[0] = 0;
+ depth_buffer_factor = 1;
+
+ pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_DEPTH_STENCIL, 0);
+ pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_DEPTH_STENCIL, 0);
+ pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_DEPTH_STENCIL, 0);
+ pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_DEPTH_STENCIL, 0);
+ pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_RENDER_TARGET, 0);
+ pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_RENDER_TARGET, 0);
+ pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_RENDER_TARGET, 0);
+
+ /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
+ if (dri_with_format(screen->sPriv)) {
+ pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_DEPTH_STENCIL, 0);
+ pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_BIND_DEPTH_STENCIL, 0);
+ } else {
+ pf_z16 = FALSE;
+ pf_z32 = FALSE;
+ }
+
+ if (pf_z16) {
+ depth_bits_array[depth_buffer_factor] = 16;
+ stencil_bits_array[depth_buffer_factor++] = 0;
+ }
+ if (pf_x8z24 || pf_z24x8) {
+ depth_bits_array[depth_buffer_factor] = 24;
+ stencil_bits_array[depth_buffer_factor++] = 0;
+ screen->d_depth_bits_last = pf_x8z24;
+ }
+ if (pf_s8z24 || pf_z24s8) {
+ depth_bits_array[depth_buffer_factor] = 24;
+ stencil_bits_array[depth_buffer_factor++] = 8;
+ screen->sd_depth_bits_last = pf_s8z24;
+ }
+ if (pf_z32) {
+ depth_bits_array[depth_buffer_factor] = 32;
+ stencil_bits_array[depth_buffer_factor++] = 0;
+ }
+
+ msaa_samples_array[0] = 0;
+ msaa_samples_array[1] = 4;
+ back_buffer_factor = 3;
+ msaa_samples_factor = 2;
+
+ num_modes =
+ depth_buffer_factor * back_buffer_factor * msaa_samples_factor * 4;
+
+ if (pf_r5g6b5)
+ configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
+ depth_bits_array, stencil_bits_array,
+ depth_buffer_factor, back_buffer_modes,
+ back_buffer_factor,
+ msaa_samples_array, msaa_samples_factor,
+ GL_TRUE);
+
+ if (pf_a8r8g8b8)
+ configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
+ depth_bits_array,
+ stencil_bits_array,
+ depth_buffer_factor,
+ back_buffer_modes,
+ back_buffer_factor,
+ msaa_samples_array,
+ msaa_samples_factor,
+ GL_TRUE);
+
+ if (pf_x8r8g8b8)
+ configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
+ depth_bits_array,
+ stencil_bits_array,
+ depth_buffer_factor,
+ back_buffer_modes,
+ back_buffer_factor,
+ msaa_samples_array,
+ msaa_samples_factor,
+ GL_TRUE);
+
+ if (pixel_bits == 16) {
+ configs = configs_r5g6b5;
+ if (configs_a8r8g8b8)
+ configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
+ if (configs_x8r8g8b8)
+ configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
+ } else {
+ configs = configs_a8r8g8b8;
+ if (configs_x8r8g8b8)
+ configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
+ if (configs_r5g6b5)
+ configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
+ }
+
+ if (configs == NULL) {
+ debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
+ return NULL;
+ }
+
+ return (const __DRIconfig **)configs;
+}
+
+/**
+ * Roughly the converse of dri_fill_in_modes.
+ */
+void
+dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
+ const __GLcontextModes *mode)
+{
+ memset(stvis, 0, sizeof(*stvis));
+
+ stvis->samples = mode->samples;
+ stvis->render_buffer = ST_ATTACHMENT_INVALID;
+
+ if (mode->redBits == 8) {
+ if (mode->alphaBits == 8)
+ stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
+ else
+ stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
+ } else {
+ stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
+ }
+
+ switch (mode->depthBits) {
+ default:
+ case 0:
+ stvis->depth_stencil_format = PIPE_FORMAT_NONE;
+ break;
+ case 16:
+ stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
+ break;
+ case 24:
+ if (mode->stencilBits == 0) {
+ stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
+ PIPE_FORMAT_Z24X8_UNORM:
+ PIPE_FORMAT_X8Z24_UNORM;
+ } else {
+ stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
+ PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ PIPE_FORMAT_S8_USCALED_Z24_UNORM;
+ }
+ break;
+ case 32:
+ stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
+ break;
+ }
+
+ stvis->accum_format = (mode->haveAccumBuffer) ?
+ PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
+
+ stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
+ if (mode->doubleBufferMode)
+ stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
+ if (mode->stereoMode) {
+ stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
+ if (mode->doubleBufferMode)
+ stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
+ }
+
+ if (mode->haveDepthBuffer || mode->haveStencilBuffer)
+ stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
+ /* let the state tracker allocate the accum buffer */
+}
+
+#ifndef __NOT_HAVE_DRM_H
+
+/**
+ * Get information about previous buffer swaps.
+ */
+static int
+dri_get_swap_info(__DRIdrawable * dPriv, __DRIswapInfo * sInfo)
+{
+ if (dPriv == NULL || dPriv->driverPrivate == NULL || sInfo == NULL)
+ return -1;
+ else
+ return 0;
+}
+
+#endif
+
+static void
+dri_destroy_option_cache(struct dri_screen * screen)
+{
+ int i;
+
+ if (screen->optionCache.info) {
+ for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
+ FREE(screen->optionCache.info[i].name);
+ FREE(screen->optionCache.info[i].ranges);
+ }
+ FREE(screen->optionCache.info);
+ }
+
+ FREE(screen->optionCache.values);
+}
+
+void
+dri_destroy_screen_helper(struct dri_screen * screen)
+{
+ dri1_destroy_pipe_context(screen);
+
+ if (screen->smapi)
+ dri_destroy_st_manager(screen->smapi);
+
+ if (screen->pipe_screen)
+ screen->pipe_screen->destroy(screen->pipe_screen);
+
+ dri_destroy_option_cache(screen);
+}
+
+static void
+dri_destroy_screen(__DRIscreen * sPriv)
+{
+ struct dri_screen *screen = dri_screen(sPriv);
+
+ dri_destroy_screen_helper(screen);
+
+ FREE(screen);
+ sPriv->private = NULL;
+ sPriv->extensions = NULL;
+}
+
+const __DRIconfig **
+dri_init_screen_helper(struct dri_screen *screen,
+ struct pipe_screen *pscreen,
+ unsigned pixel_bits)
+{
+ screen->pipe_screen = pscreen;
+ if (!screen->pipe_screen) {
+ debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
+ return NULL;
+ }
+
+ screen->smapi = dri_create_st_manager(screen);
+ if (!screen->smapi)
+ return NULL;
+
+ driParseOptionInfo(&screen->optionCache,
+ __driConfigOptions, __driNConfigOptions);
+
+ return dri_fill_in_modes(screen, pixel_bits);
+}
+
+/**
+ * DRI driver virtual function table.
+ *
+ * DRI versions differ in their implementation of init_screen and swap_buffers.
+ */
+const struct __DriverAPIRec driDriverAPI = {
+ .DestroyScreen = dri_destroy_screen,
+ .CreateContext = dri_create_context,
+ .DestroyContext = dri_destroy_context,
+ .CreateBuffer = dri_create_buffer,
+ .DestroyBuffer = dri_destroy_buffer,
+ .MakeCurrent = dri_make_current,
+ .UnbindContext = dri_unbind_context,
+
+#ifndef __NOT_HAVE_DRM_H
+
+ .GetSwapInfo = dri_get_swap_info,
+ .GetDrawableMSC = driDrawableGetMSC32,
+ .WaitForMSC = driWaitForMSC32,
+ .InitScreen2 = dri2_init_screen,
+
+ .InitScreen = dri1_init_screen,
+ .SwapBuffers = dri1_swap_buffers,
+ .CopySubBuffer = dri1_copy_sub_buffer,
+
+#else
+
+ .InitScreen = drisw_init_screen,
+ .SwapBuffers = drisw_swap_buffers,
+
+#endif
+
+};
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
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