mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-24 16:39:43 +00:00
6904101c44
== DETAILS Really simple code cleanup, because my editor flags trailing whitespaces and it's pretty annoying.
929 lines
21 KiB
C
929 lines
21 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
|
|
* Copyright (C) 2011-2017 - Daniel De Matteis
|
|
*
|
|
* RetroArch is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
|
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with RetroArch.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* KMS/DRM context, running without any window manager.
|
|
* Based on kmscube example by Rob Clark.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <math.h>
|
|
|
|
#include <sched.h>
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <sys/poll.h>
|
|
|
|
#include <libdrm/drm.h>
|
|
#include <gbm.h>
|
|
|
|
#include <lists/dir_list.h>
|
|
#include <string/stdstring.h>
|
|
|
|
#include "../../configuration.h"
|
|
#include "../../verbosity.h"
|
|
#include "../../frontend/frontend_driver.h"
|
|
#include "../common/drm_common.h"
|
|
|
|
#ifdef HAVE_EGL
|
|
#include "../common/egl_common.h"
|
|
#endif
|
|
|
|
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGLES)
|
|
#include "../common/gl_common.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "../../config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_OPENGLES
|
|
|
|
#ifndef EGL_OPENGL_ES3_BIT_KHR
|
|
#define EGL_OPENGL_ES3_BIT_KHR 0x0040
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#ifndef EGL_PLATFORM_GBM_KHR
|
|
#define EGL_PLATFORM_GBM_KHR 0x31D7
|
|
#endif
|
|
|
|
static enum gfx_ctx_api drm_api = GFX_CTX_NONE;
|
|
|
|
static struct gbm_bo *g_bo = NULL;
|
|
static struct gbm_bo *g_next_bo = NULL;
|
|
static struct gbm_surface *g_gbm_surface = NULL;
|
|
static struct gbm_device *g_gbm_dev = NULL;
|
|
|
|
static bool waiting_for_flip = false;
|
|
|
|
typedef struct gfx_ctx_drm_data
|
|
{
|
|
#ifdef HAVE_EGL
|
|
egl_ctx_data_t egl;
|
|
#endif
|
|
int fd;
|
|
unsigned interval;
|
|
unsigned fb_width;
|
|
unsigned fb_height;
|
|
|
|
bool core_hw_context_enable;
|
|
} gfx_ctx_drm_data_t;
|
|
|
|
struct drm_fb
|
|
{
|
|
struct gbm_bo *bo;
|
|
uint32_t fb_id;
|
|
};
|
|
|
|
static void drm_fb_destroy_callback(struct gbm_bo *bo, void *data)
|
|
{
|
|
struct drm_fb *fb = (struct drm_fb*)data;
|
|
|
|
if (fb && fb->fb_id)
|
|
drmModeRmFB(g_drm_fd, fb->fb_id);
|
|
|
|
free(fb);
|
|
}
|
|
|
|
static struct drm_fb *drm_fb_get_from_bo(struct gbm_bo *bo)
|
|
{
|
|
int ret;
|
|
unsigned width, height, stride, handle;
|
|
struct drm_fb *fb = (struct drm_fb*)calloc(1, sizeof(*fb));
|
|
|
|
fb->bo = bo;
|
|
|
|
width = gbm_bo_get_width(bo);
|
|
height = gbm_bo_get_height(bo);
|
|
stride = gbm_bo_get_stride(bo);
|
|
handle = gbm_bo_get_handle(bo).u32;
|
|
|
|
RARCH_LOG("[KMS]: New FB: %ux%u (stride: %u).\n",
|
|
width, height, stride);
|
|
|
|
ret = drmModeAddFB(g_drm_fd, width, height, 24, 32,
|
|
stride, handle, &fb->fb_id);
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback);
|
|
return fb;
|
|
|
|
error:
|
|
RARCH_ERR("[KMS]: Failed to create FB: %s\n", strerror(errno));
|
|
free(fb);
|
|
return NULL;
|
|
}
|
|
|
|
static void gfx_ctx_drm_swap_interval(void *data, unsigned interval)
|
|
{
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
|
|
drm->interval = interval;
|
|
|
|
if (interval > 1)
|
|
RARCH_WARN("[KMS]: Swap intervals > 1 currently not supported. Will use swap interval of 1.\n");
|
|
}
|
|
|
|
static void gfx_ctx_drm_check_window(void *data, bool *quit,
|
|
bool *resize, unsigned *width, unsigned *height, bool is_shutdown)
|
|
{
|
|
(void)data;
|
|
(void)width;
|
|
(void)height;
|
|
|
|
*resize = false;
|
|
*quit = (bool)frontend_driver_get_signal_handler_state();
|
|
}
|
|
|
|
|
|
static void drm_flip_handler(int fd, unsigned frame,
|
|
unsigned sec, unsigned usec, void *data)
|
|
{
|
|
(void)fd;
|
|
(void)sec;
|
|
(void)usec;
|
|
|
|
#if 0
|
|
static unsigned first_page_flip;
|
|
static unsigned last_page_flip;
|
|
|
|
if (!first_page_flip)
|
|
first_page_flip = frame;
|
|
|
|
if (last_page_flip)
|
|
{
|
|
unsigned missed = frame - last_page_flip - 1;
|
|
if (missed)
|
|
RARCH_LOG("[KMS]: Missed %u VBlank(s) (Frame: %u, DRM frame: %u).\n",
|
|
missed, frame - first_page_flip, frame);
|
|
}
|
|
|
|
last_page_flip = frame;
|
|
#endif
|
|
|
|
*(bool*)data = false;
|
|
}
|
|
|
|
static bool gfx_ctx_drm_wait_flip(bool block)
|
|
{
|
|
int timeout = 0;
|
|
|
|
if (!waiting_for_flip)
|
|
return false;
|
|
|
|
if (block)
|
|
timeout = -1;
|
|
|
|
while (waiting_for_flip)
|
|
{
|
|
if (!drm_wait_flip(timeout))
|
|
break;
|
|
}
|
|
|
|
if (waiting_for_flip)
|
|
return true;
|
|
|
|
/* Page flip has taken place. */
|
|
|
|
/* This buffer is not on-screen anymore. Release it to GBM. */
|
|
gbm_surface_release_buffer(g_gbm_surface, g_bo);
|
|
/* This buffer is being shown now. */
|
|
g_bo = g_next_bo;
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool gfx_ctx_drm_queue_flip(void)
|
|
{
|
|
struct drm_fb *fb = NULL;
|
|
|
|
g_next_bo = gbm_surface_lock_front_buffer(g_gbm_surface);
|
|
fb = (struct drm_fb*)gbm_bo_get_user_data(g_next_bo);
|
|
|
|
if (!fb)
|
|
fb = (struct drm_fb*)drm_fb_get_from_bo(g_next_bo);
|
|
|
|
if (drmModePageFlip(g_drm_fd, g_crtc_id, fb->fb_id,
|
|
DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip) == 0)
|
|
return true;
|
|
|
|
/* Failed to queue page flip. */
|
|
return false;
|
|
}
|
|
|
|
static void gfx_ctx_drm_swap_buffers(void *data, void *data2)
|
|
{
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
|
|
video_frame_info_t *video_info = (video_frame_info_t*)data2;
|
|
|
|
switch (drm_api)
|
|
{
|
|
case GFX_CTX_OPENGL_API:
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
case GFX_CTX_OPENVG_API:
|
|
#ifdef HAVE_EGL
|
|
egl_swap_buffers(&drm->egl);
|
|
#endif
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* I guess we have to wait for flip to have taken
|
|
* place before another flip can be queued up.
|
|
*
|
|
* If true, we are still waiting for a flip
|
|
* (nonblocking mode, so just drop the frame). */
|
|
if (gfx_ctx_drm_wait_flip(drm->interval))
|
|
return;
|
|
|
|
waiting_for_flip = gfx_ctx_drm_queue_flip();
|
|
|
|
/* Triple-buffered page flips */
|
|
if (video_info->max_swapchain_images >= 3 &&
|
|
gbm_surface_has_free_buffers(g_gbm_surface))
|
|
return;
|
|
|
|
gfx_ctx_drm_wait_flip(true);
|
|
}
|
|
|
|
static void gfx_ctx_drm_get_video_size(void *data,
|
|
unsigned *width, unsigned *height)
|
|
{
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
|
|
|
|
if (!drm)
|
|
return;
|
|
|
|
*width = drm->fb_width;
|
|
*height = drm->fb_height;
|
|
}
|
|
|
|
static void free_drm_resources(gfx_ctx_drm_data_t *drm)
|
|
{
|
|
if (!drm)
|
|
return;
|
|
|
|
/* Restore original CRTC. */
|
|
drm_restore_crtc();
|
|
|
|
if (g_gbm_surface)
|
|
gbm_surface_destroy(g_gbm_surface);
|
|
|
|
if (g_gbm_dev)
|
|
gbm_device_destroy(g_gbm_dev);
|
|
|
|
drm_free();
|
|
|
|
if (drm->fd >= 0)
|
|
{
|
|
if (g_drm_fd >= 0)
|
|
{
|
|
drmDropMaster(g_drm_fd);
|
|
close(drm->fd);
|
|
}
|
|
}
|
|
|
|
g_gbm_surface = NULL;
|
|
g_gbm_dev = NULL;
|
|
g_drm_fd = -1;
|
|
}
|
|
|
|
static void gfx_ctx_drm_destroy_resources(gfx_ctx_drm_data_t *drm)
|
|
{
|
|
if (!drm)
|
|
return;
|
|
|
|
/* Make sure we acknowledge all page-flips. */
|
|
gfx_ctx_drm_wait_flip(true);
|
|
|
|
switch (drm_api)
|
|
{
|
|
case GFX_CTX_OPENGL_API:
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
case GFX_CTX_OPENVG_API:
|
|
#ifdef HAVE_EGL
|
|
egl_destroy(&drm->egl);
|
|
#endif
|
|
break;
|
|
case GFX_CTX_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
free_drm_resources(drm);
|
|
|
|
g_drm_mode = NULL;
|
|
g_crtc_id = 0;
|
|
g_connector_id = 0;
|
|
|
|
drm->fb_width = 0;
|
|
drm->fb_height = 0;
|
|
|
|
g_bo = NULL;
|
|
g_next_bo = NULL;
|
|
}
|
|
|
|
static void *gfx_ctx_drm_init(video_frame_info_t *video_info, void *video_driver)
|
|
{
|
|
int fd, i;
|
|
unsigned monitor_index;
|
|
unsigned gpu_index = 0;
|
|
const char *gpu = NULL;
|
|
struct string_list *gpu_descriptors = NULL;
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)
|
|
calloc(1, sizeof(gfx_ctx_drm_data_t));
|
|
|
|
if (!drm)
|
|
return NULL;
|
|
drm->fd = -1;
|
|
|
|
gpu_descriptors = dir_list_new("/dev/dri", NULL, false, true, false, false);
|
|
|
|
nextgpu:
|
|
free_drm_resources(drm);
|
|
|
|
if (!gpu_descriptors || gpu_index == gpu_descriptors->size)
|
|
{
|
|
RARCH_ERR("[KMS]: Couldn't find a suitable DRM device.\n");
|
|
goto error;
|
|
}
|
|
gpu = gpu_descriptors->elems[gpu_index++].data;
|
|
|
|
drm->fd = open(gpu, O_RDWR);
|
|
if (drm->fd < 0)
|
|
{
|
|
RARCH_WARN("[KMS]: Couldn't open DRM device.\n");
|
|
goto nextgpu;
|
|
}
|
|
|
|
fd = drm->fd;
|
|
|
|
if (!drm_get_resources(fd))
|
|
goto nextgpu;
|
|
|
|
if (!drm_get_connector(fd, video_info))
|
|
goto nextgpu;
|
|
|
|
if (!drm_get_encoder(fd))
|
|
goto nextgpu;
|
|
|
|
drm_setup(fd);
|
|
|
|
/* First mode is assumed to be the "optimal"
|
|
* one for get_video_size() purposes. */
|
|
drm->fb_width = g_drm_connector->modes[0].hdisplay;
|
|
drm->fb_height = g_drm_connector->modes[0].vdisplay;
|
|
|
|
drmSetMaster(g_drm_fd);
|
|
|
|
g_gbm_dev = gbm_create_device(fd);
|
|
|
|
if (!g_gbm_dev)
|
|
{
|
|
RARCH_WARN("[KMS]: Couldn't create GBM device.\n");
|
|
goto nextgpu;
|
|
}
|
|
|
|
dir_list_free(gpu_descriptors);
|
|
|
|
/* Setup the flip handler. */
|
|
g_drm_fds.fd = fd;
|
|
g_drm_fds.events = POLLIN;
|
|
g_drm_evctx.version = DRM_EVENT_CONTEXT_VERSION;
|
|
g_drm_evctx.page_flip_handler = drm_flip_handler;
|
|
|
|
g_drm_fd = fd;
|
|
|
|
return drm;
|
|
|
|
error:
|
|
dir_list_free(gpu_descriptors);
|
|
|
|
gfx_ctx_drm_destroy_resources(drm);
|
|
|
|
if (drm)
|
|
free(drm);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static EGLint *gfx_ctx_drm_egl_fill_attribs(
|
|
gfx_ctx_drm_data_t *drm, EGLint *attr)
|
|
{
|
|
switch (drm_api)
|
|
{
|
|
#ifdef EGL_KHR_create_context
|
|
case GFX_CTX_OPENGL_API:
|
|
{
|
|
bool debug = false;
|
|
#ifdef HAVE_OPENGL
|
|
unsigned version = drm->egl.major * 1000 + drm->egl.minor;
|
|
bool core = version >= 3001;
|
|
#ifdef GL_DEBUG
|
|
debug = true;
|
|
#else
|
|
struct retro_hw_render_callback *hwr = video_driver_get_hw_context();
|
|
debug = hwr->debug_context;
|
|
#endif
|
|
|
|
if (core)
|
|
{
|
|
*attr++ = EGL_CONTEXT_MAJOR_VERSION_KHR;
|
|
*attr++ = drm->egl.major;
|
|
*attr++ = EGL_CONTEXT_MINOR_VERSION_KHR;
|
|
*attr++ = drm->egl.minor;
|
|
|
|
/* Technically, we don't have core/compat until 3.2.
|
|
* Version 3.1 is either compat or not depending
|
|
* on GL_ARB_compatibility. */
|
|
if (version >= 3002)
|
|
{
|
|
*attr++ = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
|
|
*attr++ = EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
|
|
}
|
|
}
|
|
|
|
if (debug)
|
|
{
|
|
*attr++ = EGL_CONTEXT_FLAGS_KHR;
|
|
*attr++ = EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
|
|
}
|
|
break;
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
#ifdef HAVE_OPENGLES
|
|
*attr++ = EGL_CONTEXT_CLIENT_VERSION;
|
|
*attr++ = drm->egl.major
|
|
? (EGLint)drm->egl.major : 2;
|
|
#ifdef EGL_KHR_create_context
|
|
if (drm->egl.minor > 0)
|
|
{
|
|
*attr++ = EGL_CONTEXT_MINOR_VERSION_KHR;
|
|
*attr++ = drm->egl.minor;
|
|
}
|
|
#endif
|
|
#endif
|
|
break;
|
|
case GFX_CTX_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
*attr = EGL_NONE;
|
|
return attr;
|
|
}
|
|
|
|
#ifdef HAVE_EGL
|
|
#define DRM_EGL_ATTRIBS_BASE \
|
|
EGL_SURFACE_TYPE, EGL_WINDOW_BIT, \
|
|
EGL_RED_SIZE, 1, \
|
|
EGL_GREEN_SIZE, 1, \
|
|
EGL_BLUE_SIZE, 1, \
|
|
EGL_ALPHA_SIZE, 0, \
|
|
EGL_DEPTH_SIZE, 0
|
|
|
|
static bool gfx_ctx_drm_egl_set_video_mode(gfx_ctx_drm_data_t *drm)
|
|
{
|
|
const EGLint *attrib_ptr = NULL;
|
|
static const EGLint egl_attribs_gl[] = {
|
|
DRM_EGL_ATTRIBS_BASE,
|
|
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
|
|
EGL_NONE,
|
|
};
|
|
|
|
static const EGLint egl_attribs_gles[] = {
|
|
DRM_EGL_ATTRIBS_BASE,
|
|
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
|
|
EGL_NONE,
|
|
};
|
|
|
|
#ifdef EGL_KHR_create_context
|
|
static const EGLint egl_attribs_gles3[] = {
|
|
DRM_EGL_ATTRIBS_BASE,
|
|
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR,
|
|
EGL_NONE,
|
|
};
|
|
#endif
|
|
|
|
#ifdef HAVE_VG
|
|
static const EGLint egl_attribs_vg[] = {
|
|
DRM_EGL_ATTRIBS_BASE,
|
|
EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT,
|
|
EGL_NONE,
|
|
};
|
|
#endif
|
|
EGLint major;
|
|
EGLint minor;
|
|
EGLint n;
|
|
EGLint egl_attribs[16];
|
|
EGLint *egl_attribs_ptr = NULL;
|
|
EGLint *attr = NULL;
|
|
|
|
switch (drm_api)
|
|
{
|
|
case GFX_CTX_OPENGL_API:
|
|
#ifdef HAVE_OPENGL
|
|
attrib_ptr = egl_attribs_gl;
|
|
break;
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
#ifdef EGL_KHR_create_context
|
|
if (drm->egl.major >= 3)
|
|
attrib_ptr = egl_attribs_gles3;
|
|
else
|
|
#endif
|
|
attrib_ptr = egl_attribs_gles;
|
|
#endif
|
|
break;
|
|
case GFX_CTX_OPENVG_API:
|
|
#ifdef HAVE_VG
|
|
attrib_ptr = egl_attribs_vg;
|
|
#endif
|
|
break;
|
|
case GFX_CTX_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (drm_api)
|
|
{
|
|
case GFX_CTX_OPENGL_API:
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
case GFX_CTX_OPENVG_API:
|
|
#ifdef HAVE_EGL
|
|
if (!egl_init_context(&drm->egl, EGL_PLATFORM_GBM_KHR,
|
|
(EGLNativeDisplayType)g_gbm_dev, &major,
|
|
&minor, &n, attrib_ptr))
|
|
goto error;
|
|
|
|
attr = gfx_ctx_drm_egl_fill_attribs(drm, egl_attribs);
|
|
egl_attribs_ptr = &egl_attribs[0];
|
|
|
|
if (!egl_create_context(&drm->egl, (attr != egl_attribs_ptr)
|
|
? egl_attribs_ptr : NULL))
|
|
goto error;
|
|
|
|
if (!egl_create_surface(&drm->egl, (EGLNativeWindowType)g_gbm_surface))
|
|
return false;
|
|
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGLES)
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
#endif
|
|
#endif
|
|
break;
|
|
case GFX_CTX_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
egl_swap_buffers(drm);
|
|
|
|
return true;
|
|
|
|
error:
|
|
egl_report_error();
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
static bool gfx_ctx_drm_set_video_mode(void *data,
|
|
video_frame_info_t *video_info,
|
|
unsigned width, unsigned height,
|
|
bool fullscreen)
|
|
{
|
|
float refresh_mod;
|
|
int i, ret = 0;
|
|
struct drm_fb *fb = NULL;
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
|
|
|
|
if (!drm)
|
|
return false;
|
|
|
|
frontend_driver_install_signal_handler();
|
|
|
|
/* If we use black frame insertion,
|
|
* we fake a 60 Hz monitor for 120 Hz one,
|
|
* etc, so try to match that. */
|
|
refresh_mod = video_info->black_frame_insertion
|
|
? 0.5f : 1.0f;
|
|
|
|
/* Find desired video mode, and use that.
|
|
* If not fullscreen, we get desired windowed size,
|
|
* which is not appropriate. */
|
|
if ((width == 0 && height == 0) || !fullscreen)
|
|
g_drm_mode = &g_drm_connector->modes[0];
|
|
else
|
|
{
|
|
/* Try to match refresh_rate as closely as possible.
|
|
*
|
|
* Lower resolutions tend to have multiple supported
|
|
* refresh rates as well.
|
|
*/
|
|
float minimum_fps_diff = 0.0f;
|
|
|
|
/* Find best match. */
|
|
for (i = 0; i < g_drm_connector->count_modes; i++)
|
|
{
|
|
float diff;
|
|
if (width != g_drm_connector->modes[i].hdisplay ||
|
|
height != g_drm_connector->modes[i].vdisplay)
|
|
continue;
|
|
|
|
diff = fabsf(refresh_mod * g_drm_connector->modes[i].vrefresh
|
|
- video_info->refresh_rate);
|
|
|
|
if (!g_drm_mode || diff < minimum_fps_diff)
|
|
{
|
|
g_drm_mode = &g_drm_connector->modes[i];
|
|
minimum_fps_diff = diff;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!g_drm_mode)
|
|
{
|
|
RARCH_ERR("[KMS/EGL]: Did not find suitable video mode for %u x %u.\n",
|
|
width, height);
|
|
goto error;
|
|
}
|
|
|
|
drm->fb_width = g_drm_mode->hdisplay;
|
|
drm->fb_height = g_drm_mode->vdisplay;
|
|
|
|
/* Create GBM surface. */
|
|
g_gbm_surface = gbm_surface_create(
|
|
g_gbm_dev,
|
|
drm->fb_width,
|
|
drm->fb_height,
|
|
GBM_FORMAT_XRGB8888,
|
|
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
|
|
|
|
if (!g_gbm_surface)
|
|
{
|
|
RARCH_ERR("[KMS/EGL]: Couldn't create GBM surface.\n");
|
|
goto error;
|
|
}
|
|
|
|
|
|
switch (drm_api)
|
|
{
|
|
case GFX_CTX_OPENGL_API:
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
case GFX_CTX_OPENVG_API:
|
|
#ifdef HAVE_EGL
|
|
if (!gfx_ctx_drm_egl_set_video_mode(drm))
|
|
goto error;
|
|
#endif
|
|
break;
|
|
case GFX_CTX_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_bo = gbm_surface_lock_front_buffer(g_gbm_surface);
|
|
|
|
fb = (struct drm_fb*)gbm_bo_get_user_data(g_bo);
|
|
|
|
if (!fb)
|
|
fb = drm_fb_get_from_bo(g_bo);
|
|
|
|
ret = drmModeSetCrtc(g_drm_fd,
|
|
g_crtc_id, fb->fb_id, 0, 0, &g_connector_id, 1, g_drm_mode);
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
return true;
|
|
|
|
error:
|
|
gfx_ctx_drm_destroy_resources(drm);
|
|
|
|
if (drm)
|
|
free(drm);
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
static void gfx_ctx_drm_destroy(void *data)
|
|
{
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
|
|
|
|
if (!drm)
|
|
return;
|
|
|
|
gfx_ctx_drm_destroy_resources(drm);
|
|
free(drm);
|
|
}
|
|
|
|
static void gfx_ctx_drm_input_driver(void *data,
|
|
const char *joypad_name,
|
|
const input_driver_t **input, void **input_data)
|
|
{
|
|
#ifdef HAVE_X11
|
|
settings_t *settings = config_get_ptr();
|
|
|
|
/* We cannot use the X11 input driver for DRM/KMS */
|
|
if (string_is_equal(settings->arrays.input_driver, "x"))
|
|
{
|
|
#ifdef HAVE_UDEV
|
|
{
|
|
/* Try to set it to udev instead */
|
|
void *udev = input_udev.init(joypad_name);
|
|
if (udev)
|
|
{
|
|
*input = &input_udev;
|
|
*input_data = udev;
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
#if defined(__linux__) && !defined(ANDROID)
|
|
{
|
|
/* Try to set it to linuxraw instead */
|
|
void *linuxraw = input_linuxraw.init(joypad_name);
|
|
if (linuxraw)
|
|
{
|
|
*input = &input_linuxraw;
|
|
*input_data = linuxraw;
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
*input = NULL;
|
|
*input_data = NULL;
|
|
}
|
|
|
|
static bool gfx_ctx_drm_has_focus(void *data)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static bool gfx_ctx_drm_suppress_screensaver(void *data, bool enable)
|
|
{
|
|
(void)data;
|
|
(void)enable;
|
|
return false;
|
|
}
|
|
|
|
static bool gfx_ctx_drm_bind_api(void *video_driver,
|
|
enum gfx_ctx_api api, unsigned major, unsigned minor)
|
|
{
|
|
(void)video_driver;
|
|
|
|
#ifdef HAVE_EGL
|
|
g_egl_major = major;
|
|
g_egl_minor = minor;
|
|
#endif
|
|
drm_api = api;
|
|
|
|
switch (api)
|
|
{
|
|
case GFX_CTX_OPENGL_API:
|
|
#if defined(HAVE_EGL) && defined(HAVE_OPENGL)
|
|
|
|
#ifndef EGL_KHR_create_context
|
|
if ((major * 1000 + minor) >= 3001)
|
|
return false;
|
|
#endif
|
|
return eglBindAPI(EGL_OPENGL_API);
|
|
#else
|
|
break;
|
|
#endif
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
#if defined(HAVE_EGL) && defined(HAVE_OPENGLES)
|
|
|
|
#ifndef EGL_KHR_create_context
|
|
if (major >= 3)
|
|
return false;
|
|
#endif
|
|
return eglBindAPI(EGL_OPENGL_ES_API);
|
|
#else
|
|
break;
|
|
#endif
|
|
case GFX_CTX_OPENVG_API:
|
|
#if defined(HAVE_EGL) && defined(HAVE_VG)
|
|
return eglBindAPI(EGL_OPENVG_API);
|
|
#endif
|
|
case GFX_CTX_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static gfx_ctx_proc_t gfx_ctx_drm_get_proc_address(const char *symbol)
|
|
{
|
|
switch (drm_api)
|
|
{
|
|
case GFX_CTX_OPENGL_API:
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
case GFX_CTX_OPENVG_API:
|
|
#ifdef HAVE_EGL
|
|
return egl_get_proc_address(symbol);
|
|
#else
|
|
break;
|
|
#endif
|
|
case GFX_CTX_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void gfx_ctx_drm_bind_hw_render(void *data, bool enable)
|
|
{
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
|
|
|
|
switch (drm_api)
|
|
{
|
|
case GFX_CTX_OPENGL_API:
|
|
case GFX_CTX_OPENGL_ES_API:
|
|
case GFX_CTX_OPENVG_API:
|
|
#ifdef HAVE_EGL
|
|
egl_bind_hw_render(&drm->egl, enable);
|
|
#endif
|
|
break;
|
|
case GFX_CTX_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static uint32_t gfx_ctx_drm_get_flags(void *data)
|
|
{
|
|
uint32_t flags = 0;
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
|
|
|
|
BIT32_SET(flags, GFX_CTX_FLAGS_CUSTOMIZABLE_SWAPCHAIN_IMAGES);
|
|
|
|
if (drm->core_hw_context_enable)
|
|
BIT32_SET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT);
|
|
|
|
return flags;
|
|
}
|
|
|
|
static void gfx_ctx_drm_set_flags(void *data, uint32_t flags)
|
|
{
|
|
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
|
|
if (BIT32_GET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT))
|
|
drm->core_hw_context_enable = true;
|
|
}
|
|
|
|
const gfx_ctx_driver_t gfx_ctx_drm = {
|
|
gfx_ctx_drm_init,
|
|
gfx_ctx_drm_destroy,
|
|
gfx_ctx_drm_bind_api,
|
|
gfx_ctx_drm_swap_interval,
|
|
gfx_ctx_drm_set_video_mode,
|
|
gfx_ctx_drm_get_video_size,
|
|
NULL, /* get_video_output_size */
|
|
NULL, /* get_video_output_prev */
|
|
NULL, /* get_video_output_next */
|
|
NULL, /* get_metrics */
|
|
NULL,
|
|
NULL, /* update_window_title */
|
|
gfx_ctx_drm_check_window,
|
|
NULL, /* set_resize */
|
|
gfx_ctx_drm_has_focus,
|
|
gfx_ctx_drm_suppress_screensaver,
|
|
NULL, /* has_windowed */
|
|
gfx_ctx_drm_swap_buffers,
|
|
gfx_ctx_drm_input_driver,
|
|
gfx_ctx_drm_get_proc_address,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
"kms",
|
|
gfx_ctx_drm_get_flags,
|
|
gfx_ctx_drm_set_flags,
|
|
gfx_ctx_drm_bind_hw_render,
|
|
NULL,
|
|
NULL
|
|
};
|