diff options
Diffstat (limited to 'src/gallium/state_trackers/dri/common/dri_screen.c')
-rw-r--r-- | src/gallium/state_trackers/dri/common/dri_screen.c | 381 |
1 files changed, 381 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..821c1dea62 --- /dev/null +++ b/src/gallium/state_trackers/dri/common/dri_screen.c @@ -0,0 +1,381 @@ +/************************************************************************** + * + * 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_TEXTURE_USAGE_DEPTH_STENCIL, 0); + pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM, + PIPE_TEXTURE_2D, + PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0); + pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24S8_UNORM, + PIPE_TEXTURE_2D, + PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0); + pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8Z24_UNORM, + PIPE_TEXTURE_2D, + PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0); + pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM, + PIPE_TEXTURE_2D, + PIPE_TEXTURE_USAGE_RENDER_TARGET, 0); + pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM, + PIPE_TEXTURE_2D, + PIPE_TEXTURE_USAGE_RENDER_TARGET, 0); + pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM, + PIPE_TEXTURE_2D, + PIPE_TEXTURE_USAGE_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_TEXTURE_USAGE_DEPTH_STENCIL, 0); + pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM, + PIPE_TEXTURE_2D, + PIPE_TEXTURE_USAGE_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_Z24S8_UNORM: + PIPE_FORMAT_S8Z24_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; + + 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 drm_create_screen_arg *arg, + unsigned pixel_bits) +{ + screen->pipe_screen = screen->api->create_screen(screen->api, screen->fd, arg); + 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: */ |