summaryrefslogtreecommitdiff
path: root/src/gallium/state_trackers/egl/egl_surface.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/state_trackers/egl/egl_surface.c')
-rw-r--r--src/gallium/state_trackers/egl/egl_surface.c418
1 files changed, 418 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/egl/egl_surface.c b/src/gallium/state_trackers/egl/egl_surface.c
new file mode 100644
index 0000000000..71292bf2a9
--- /dev/null
+++ b/src/gallium/state_trackers/egl/egl_surface.c
@@ -0,0 +1,418 @@
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "egl_tracker.h"
+
+#include "egllog.h"
+
+#include "pipe/p_inlines.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+
+#include "state_tracker/drm_api.h"
+
+/*
+ * Util functions
+ */
+
+static struct drm_mode_modeinfo *
+drm_find_mode(drmModeConnectorPtr connector, _EGLMode *mode)
+{
+ int i;
+ struct drm_mode_modeinfo *m = NULL;
+
+ for (i = 0; i < connector->count_modes; i++) {
+ m = &connector->modes[i];
+ if (m->hdisplay == mode->Width && m->vdisplay == mode->Height && m->vrefresh == mode->RefreshRate)
+ break;
+ m = &connector->modes[0]; /* if we can't find one, return first */
+ }
+
+ return m;
+}
+
+static struct st_framebuffer *
+drm_create_framebuffer(const __GLcontextModes *visual,
+ unsigned width,
+ unsigned height,
+ void *priv)
+{
+ enum pipe_format colorFormat, depthFormat, stencilFormat;
+
+ if (visual->redBits == 5)
+ colorFormat = PIPE_FORMAT_R5G6B5_UNORM;
+ else
+ colorFormat = PIPE_FORMAT_A8R8G8B8_UNORM;
+
+ if (visual->depthBits == 16)
+ depthFormat = PIPE_FORMAT_Z16_UNORM;
+ else if (visual->depthBits == 24)
+ depthFormat = PIPE_FORMAT_S8Z24_UNORM;
+ else
+ depthFormat = PIPE_FORMAT_NONE;
+
+ if (visual->stencilBits == 8)
+ stencilFormat = PIPE_FORMAT_S8Z24_UNORM;
+ else
+ stencilFormat = PIPE_FORMAT_NONE;
+
+ return st_create_framebuffer(visual,
+ colorFormat,
+ depthFormat,
+ stencilFormat,
+ width,
+ height,
+ priv);
+}
+
+static void
+drm_create_texture(_EGLDriver *drv,
+ struct drm_screen *scrn,
+ unsigned w, unsigned h)
+{
+ struct drm_device *dev = (struct drm_device *)drv;
+ struct pipe_screen *screen = dev->screen;
+ struct pipe_surface *surface;
+ struct pipe_texture *texture;
+ struct pipe_texture templat;
+ struct pipe_buffer *buf;
+ unsigned stride = 1024;
+ unsigned pitch = 0;
+ unsigned size = 0;
+ void *ptr;
+
+ /* ugly */
+ if (stride < w)
+ stride = 2048;
+
+ pitch = stride * 4;
+ size = h * 2 * pitch;
+
+ buf = pipe_buffer_create(screen,
+ 0, /* alignment */
+ PIPE_BUFFER_USAGE_GPU_READ_WRITE |
+ PIPE_BUFFER_USAGE_CPU_READ_WRITE,
+ size);
+
+ if (!buf)
+ goto err_buf;
+
+#if DEBUG
+ ptr = pipe_buffer_map(screen, buf, PIPE_BUFFER_USAGE_CPU_WRITE);
+ memset(ptr, 0xFF, size);
+ pipe_buffer_unmap(screen, buf);
+#else
+ (void)ptr;
+#endif
+
+ memset(&templat, 0, sizeof(templat));
+ templat.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
+ templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
+ templat.target = PIPE_TEXTURE_2D;
+ templat.last_level = 0;
+ templat.depth[0] = 1;
+ templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
+ templat.width[0] = w;
+ templat.height[0] = h;
+ pf_get_block(templat.format, &templat.block);
+
+ texture = screen->texture_blanket(dev->screen,
+ &templat,
+ &pitch,
+ buf);
+ if (!texture)
+ goto err_tex;
+
+ surface = screen->get_tex_surface(screen,
+ texture,
+ 0,
+ 0,
+ 0,
+ PIPE_BUFFER_USAGE_GPU_WRITE);
+
+ if (!surface)
+ goto err_surf;
+
+
+ scrn->tex = texture;
+ scrn->surface = surface;
+ scrn->buffer = buf;
+ scrn->front.width = w;
+ scrn->front.height = h;
+ scrn->front.pitch = pitch;
+ scrn->front.handle = drm_api_hocks.handle_from_buffer(dev->winsys, scrn->buffer);
+ if (0)
+ goto err_handle;
+
+ return;
+
+err_handle:
+ pipe_surface_reference(&surface, NULL);
+err_surf:
+ pipe_texture_reference(&texture, NULL);
+err_tex:
+ pipe_buffer_reference(screen, &buf, NULL);
+err_buf:
+ return;
+}
+
+/*
+ * Exported functions
+ */
+
+void
+drm_takedown_shown_screen(_EGLDriver *drv, struct drm_screen *screen)
+{
+ struct drm_device *dev = (struct drm_device *)drv;
+
+ screen->surf = NULL;
+
+ drmModeSetCrtc(
+ dev->drmFD,
+ screen->crtcID,
+ 0, // FD
+ 0, 0,
+ NULL, 0, // List of output ids
+ NULL);
+
+ drmModeRmFB(dev->drmFD, screen->fbID);
+ drmModeFreeFB(screen->fb);
+ screen->fb = NULL;
+
+ pipe_surface_reference(&screen->surface, NULL);
+ pipe_texture_reference(&screen->tex, NULL);
+ pipe_buffer_reference(dev->screen, &screen->buffer, NULL);
+
+ screen->shown = 0;
+}
+
+EGLSurface
+drm_create_window_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list)
+{
+ return EGL_NO_SURFACE;
+}
+
+
+EGLSurface
+drm_create_pixmap_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list)
+{
+ return EGL_NO_SURFACE;
+}
+
+
+EGLSurface
+drm_create_pbuffer_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+ const EGLint *attrib_list)
+{
+ int i;
+ int width = -1;
+ int height = -1;
+ struct drm_surface *surf = NULL;
+ __GLcontextModes *visual;
+ _EGLConfig *conf;
+
+ conf = _eglLookupConfig(drv, dpy, config);
+ if (!conf) {
+ _eglError(EGL_BAD_CONFIG, "eglCreatePbufferSurface");
+ return EGL_NO_CONTEXT;
+ }
+
+ for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) {
+ switch (attrib_list[i]) {
+ case EGL_WIDTH:
+ width = attrib_list[++i];
+ break;
+ case EGL_HEIGHT:
+ height = attrib_list[++i];
+ break;
+ default:
+ _eglError(EGL_BAD_ATTRIBUTE, "eglCreatePbufferSurface");
+ return EGL_NO_SURFACE;
+ }
+ }
+
+ if (width < 1 || height < 1) {
+ _eglError(EGL_BAD_ATTRIBUTE, "eglCreatePbufferSurface");
+ return EGL_NO_SURFACE;
+ }
+
+ surf = (struct drm_surface *) calloc(1, sizeof(struct drm_surface));
+ if (!surf)
+ goto err;
+
+ if (!_eglInitSurface(drv, dpy, &surf->base, EGL_PBUFFER_BIT, config, attrib_list))
+ goto err_surf;
+
+ surf->w = width;
+ surf->h = height;
+
+ visual = drm_visual_from_config(conf);
+ surf->stfb = drm_create_framebuffer(visual,
+ width,
+ height,
+ (void*)surf);
+ drm_visual_modes_destroy(visual);
+
+ _eglSaveSurface(&surf->base);
+ return surf->base.Handle;
+
+err_surf:
+ free(surf);
+err:
+ return EGL_NO_SURFACE;
+}
+
+EGLSurface
+drm_create_screen_surface_mesa(_EGLDriver *drv, EGLDisplay dpy, EGLConfig cfg,
+ const EGLint *attrib_list)
+{
+ EGLSurface surf = drm_create_pbuffer_surface(drv, dpy, cfg, attrib_list);
+
+ return surf;
+}
+
+EGLBoolean
+drm_show_screen_surface_mesa(_EGLDriver *drv, EGLDisplay dpy,
+ EGLScreenMESA screen,
+ EGLSurface surface, EGLModeMESA m)
+{
+ struct drm_device *dev = (struct drm_device *)drv;
+ struct drm_surface *surf = lookup_drm_surface(surface);
+ struct drm_screen *scrn = lookup_drm_screen(dpy, screen);
+ _EGLMode *mode = _eglLookupMode(dpy, m);
+ int ret;
+ unsigned int i, k;
+
+ if (scrn->shown)
+ drm_takedown_shown_screen(drv, scrn);
+
+
+ drm_create_texture(drv, scrn, mode->Width, mode->Height);
+ if (!scrn->buffer)
+ return EGL_FALSE;
+
+ ret = drmModeAddFB(dev->drmFD,
+ scrn->front.width, scrn->front.height,
+ 32, 32, scrn->front.pitch,
+ scrn->front.handle,
+ &scrn->fbID);
+
+ if (ret)
+ goto err_bo;
+
+ scrn->fb = drmModeGetFB(dev->drmFD, scrn->fbID);
+ if (!scrn->fb)
+ goto err_bo;
+
+ /* find a fitting crtc */
+ {
+ drmModeConnector *con = scrn->connector;
+
+ scrn->mode = drm_find_mode(con, mode);
+ if (!scrn->mode)
+ goto err_fb;
+
+ for (k = 0; k < con->count_encoders; k++) {
+ drmModeEncoder *enc = drmModeGetEncoder(dev->drmFD, con->encoders[k]);
+ for (i = 0; i < dev->res->count_crtcs; i++) {
+ if (enc->possible_crtcs & (1<<i)) {
+ /* save the ID */
+ scrn->crtcID = dev->res->crtcs[i];
+
+ /* skip the rest */
+ i = dev->res->count_crtcs;
+ k = dev->res->count_encoders;
+ }
+ }
+ drmModeFreeEncoder(enc);
+ }
+ }
+
+ ret = drmModeSetCrtc(dev->drmFD,
+ scrn->crtcID,
+ scrn->fbID,
+ 0, 0,
+ &scrn->connectorID, 1,
+ scrn->mode);
+
+ if (ret)
+ goto err_crtc;
+
+ surf->screen = scrn;
+
+ scrn->surf = surf;
+ scrn->shown = 1;
+
+ return EGL_TRUE;
+
+err_crtc:
+ scrn->crtcID = 0;
+
+err_fb:
+ drmModeRmFB(dev->drmFD, scrn->fbID);
+ drmModeFreeFB(scrn->fb);
+ scrn->fb = NULL;
+
+err_bo:
+ pipe_surface_reference(&scrn->surface, NULL);
+ pipe_texture_reference(&scrn->tex, NULL);
+ pipe_buffer_reference(dev->screen, &scrn->buffer, NULL);
+
+ return EGL_FALSE;
+}
+
+EGLBoolean
+drm_destroy_surface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface)
+{
+ struct drm_surface *surf = lookup_drm_surface(surface);
+ _eglRemoveSurface(&surf->base);
+ if (surf->base.IsBound) {
+ surf->base.DeletePending = EGL_TRUE;
+ } else {
+ if (surf->screen)
+ drm_takedown_shown_screen(drv, surf->screen);
+ st_unreference_framebuffer(surf->stfb);
+ free(surf);
+ }
+ return EGL_TRUE;
+}
+
+EGLBoolean
+drm_swap_buffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw)
+{
+ struct drm_surface *surf = lookup_drm_surface(draw);
+ struct pipe_surface *back_surf;
+
+ if (!surf)
+ return EGL_FALSE;
+
+ /* error checking */
+ if (!_eglSwapBuffers(drv, dpy, draw))
+ return EGL_FALSE;
+
+ back_surf = st_get_framebuffer_surface(surf->stfb,
+ ST_SURFACE_BACK_LEFT);
+
+ if (back_surf) {
+
+ st_notify_swapbuffers(surf->stfb);
+
+ if (surf->screen) {
+ surf->user->pipe->flush(surf->user->pipe, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_TEXTURE_CACHE, NULL);
+ surf->user->pipe->surface_copy(surf->user->pipe,
+ 0,
+ surf->screen->surface,
+ 0, 0,
+ back_surf,
+ 0, 0,
+ surf->w, surf->h);
+ surf->user->pipe->flush(surf->user->pipe, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_TEXTURE_CACHE, NULL);
+ /* TODO stuff here */
+ }
+
+ st_notify_swapbuffers_complete(surf->stfb);
+ }
+
+ return EGL_TRUE;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 10:06:12 +0000