st/xorg: bind framebuffer and viewport for exa

5 files changed, 226 insertions, 103 deletions

diff --git a/src/gallium/state_trackers/xorg/xorg_composite.c b/src/gallium/state_trackers/xorg/xorg_composite.c
index bf9c82a7074..642be3b7260 100644
--- a/src/gallium/state_trackers/xorg/xorg_composite.c
+++ b/src/gallium/state_trackers/xorg/xorg_composite.c
@@ -1,5 +1,9 @@
 #include "xorg_composite.h"
 
+#include <cso_cache/cso_context.h>
+
+#include <pipe/p_inlines.h>
+
 struct xorg_composite_blend {
    int op:8;
 
@@ -97,12 +101,110 @@ boolean xorg_composite_accelerated(int op,
    return FALSE;
 }
 
+static void
+bind_framebuffer_state(struct exa_context *exa, PicturePtr pDstPicture,
+                       struct exa_pixmap_priv *pDst)
+{
+   unsigned i;
+   struct pipe_framebuffer_state state;
+   struct pipe_surface *surface = exa_gpu_surface(exa, pDst);
+   memset(&state, 0, sizeof(struct pipe_framebuffer_state));
+
+   state.width  = pDstPicture->pDrawable->width;
+   state.height = pDstPicture->pDrawable->height;
+
+   state.nr_cbufs = 1;
+   state.cbufs[0] = surface;
+   for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i)
+      state.cbufs[i] = 0;
+
+   /* currently we don't use depth/stencil */
+   state.zsbuf = 0;
+
+   cso_set_framebuffer(exa->cso, &state);
+}
+
+enum AxisOrientation {
+   Y0_BOTTOM,
+   Y0_TOP
+};
+
+static void
+set_viewport(struct exa_context *exa, int width, int height,
+             enum AxisOrientation orientation)
+{
+   struct pipe_viewport_state viewport;
+   float y_scale = (orientation == Y0_BOTTOM) ? -2.f : 2.f;
+
+   viewport.scale[0] =  width / 2.f;
+   viewport.scale[1] =  height / y_scale;
+   viewport.scale[2] =  1.0;
+   viewport.scale[3] =  1.0;
+   viewport.translate[0] = width / 2.f;
+   viewport.translate[1] = height / 2.f;
+   viewport.translate[2] = 0.0;
+   viewport.translate[3] = 0.0;
+
+   cso_set_viewport(exa->cso, &viewport);
+}
+
+static void
+bind_viewport_state(struct exa_context *exa, PicturePtr pDstPicture)
+{
+   const int param_bytes = 8 * sizeof(float);
+   int width = pDstPicture->pDrawable->width;
+   int height = pDstPicture->pDrawable->height;
+   float vs_consts[8] = {
+      2.f/width, 2.f/height, 1, 1,
+      -1, -1, 0, 0
+   };
+   struct pipe_constant_buffer *cbuf = &exa->vs_const_buffer;
+
+   set_viewport(exa, width, height, Y0_BOTTOM);
+
+   pipe_buffer_reference(&cbuf->buffer, NULL);
+   cbuf->buffer = pipe_buffer_create(exa->ctx->screen, 16,
+                                     PIPE_BUFFER_USAGE_CONSTANT,
+                                     param_bytes);
+
+   if (cbuf->buffer) {
+      pipe_buffer_write(exa->ctx->screen, cbuf->buffer,
+                        0, param_bytes, vs_consts);
+   }
+   exa->ctx->set_constant_buffer(exa->ctx, PIPE_SHADER_VERTEX, 0, cbuf);
+}
+
+static void
+bind_blend_state()
+{
+}
+
+static void
+bind_rasterizer_state()
+{
+}
+
+static void
+bind_shaders()
+{
+}
+
+
 boolean xorg_composite_bind_state(struct exa_context *exa,
                                   int op,
                                   PicturePtr pSrcPicture,
                                   PicturePtr pMaskPicture,
-                                  PicturePtr pDstPicture)
+                                  PicturePtr pDstPicture,
+                                  struct exa_pixmap_priv *pSrc,
+                                  struct exa_pixmap_priv *pMask,
+                                  struct exa_pixmap_priv *pDst)
 {
+   bind_framebuffer_state(exa, pDstPicture, pDst);
+   bind_viewport_state(exa, pDstPicture);
+   bind_blend_state();
+   bind_rasterizer_state();
+   bind_shaders();
+
    return FALSE;
 }
 
diff --git a/src/gallium/state_trackers/xorg/xorg_composite.h b/src/gallium/state_trackers/xorg/xorg_composite.h
index a52e0e6dff0..17dfcb199ea 100644
--- a/src/gallium/state_trackers/xorg/xorg_composite.h
+++ b/src/gallium/state_trackers/xorg/xorg_composite.h
@@ -12,7 +12,10 @@ boolean xorg_composite_bind_state(struct exa_context *exa,
                                   int op,
                                   PicturePtr pSrcPicture,
                                   PicturePtr pMaskPicture,
-                                  PicturePtr pDstPicture);
+                                  PicturePtr pDstPicture,
+                                  struct exa_pixmap_priv *pSrc,
+                                  struct exa_pixmap_priv *pMask,
+                                  struct exa_pixmap_priv *pDst);
 
 void xorg_composite(struct exa_context *exa,
                     struct exa_pixmap_priv *dst,
diff --git a/src/gallium/state_trackers/xorg/xorg_exa.c b/src/gallium/state_trackers/xorg/xorg_exa.c
index ef6a112a1e4..9bd28a8c84b 100644
--- a/src/gallium/state_trackers/xorg/xorg_exa.c
+++ b/src/gallium/state_trackers/xorg/xorg_exa.c
@@ -217,10 +217,7 @@ ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
     modesettingPtr ms = modesettingPTR(pScrn);
     struct exa_context *exa = ms->exa;
     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
-    struct pipe_surface *surf =
-	exa->scrn->get_tex_surface(exa->scrn, priv->tex, 0, 0, 0,
-				   PIPE_BUFFER_USAGE_GPU_READ |
-				   PIPE_BUFFER_USAGE_GPU_WRITE);
+    struct pipe_surface *surf = exa_gpu_surface(exa, priv);
 
     exa->ctx->surface_fill(exa->ctx, surf, x0, y0, x1 - x0, y1 - y0,
 			   priv->color);
@@ -256,10 +253,7 @@ ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
     if (!exa->ctx || !exa->ctx->surface_copy)
 	return FALSE;
 
-    priv->src_surf =
-	exa->scrn->get_tex_surface(exa->scrn, src_priv->tex, 0, 0, 0,
-				   PIPE_BUFFER_USAGE_GPU_READ |
-				   PIPE_BUFFER_USAGE_GPU_WRITE);
+    priv->src_surf = exa_gpu_surface(exa, src_priv);
 
     return TRUE;
 }
@@ -272,10 +266,7 @@ ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
     modesettingPtr ms = modesettingPTR(pScrn);
     struct exa_context *exa = ms->exa;
     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
-    struct pipe_surface *surf =
-	exa->scrn->get_tex_surface(exa->scrn, priv->tex, 0, 0, 0,
-				   PIPE_BUFFER_USAGE_GPU_READ |
-				   PIPE_BUFFER_USAGE_GPU_WRITE);
+    struct pipe_surface *surf = exa_gpu_surface(exa, priv);
 
     exa->ctx->surface_copy(exa->ctx, surf, dstX, dstY, priv->src_surf,
 			   srcX, srcY, width, height);
@@ -292,7 +283,10 @@ ExaPrepareComposite(int op, PicturePtr pSrcPicture,
    struct exa_context *exa = ms->exa;
 
    return xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
-                                    pDstPicture);
+                                    pDstPicture,
+                                    exaGetPixmapDriverPrivate(pSrc),
+                                    exaGetPixmapDriverPrivate(pMask),
+                                    exaGetPixmapDriverPrivate(pDst));
 }
 
 static void
@@ -512,101 +506,117 @@ ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 struct pipe_texture *
 xorg_exa_get_texture(PixmapPtr pPixmap)
 {
-    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
-    struct pipe_texture *tex = NULL;
-    pipe_texture_reference(&tex, priv->tex);
-    return tex;
+   struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
+   struct pipe_texture *tex = NULL;
+   pipe_texture_reference(&tex, priv->tex);
+   return tex;
 }
 
 void
 xorg_exa_close(ScrnInfoPtr pScrn)
 {
-    modesettingPtr ms = modesettingPTR(pScrn);
-    struct exa_context *exa = ms->exa;
+   modesettingPtr ms = modesettingPTR(pScrn);
+   struct exa_context *exa = ms->exa;
+   struct pipe_constant_buffer *vsbuf = &exa->vs_const_buffer;
+   struct pipe_constant_buffer *fsbuf = &exa->fs_const_buffer;
 
-    if (exa->shaders) {
-       xorg_shaders_destroy(exa->shaders);
-    }
+   if (exa->shaders) {
+      xorg_shaders_destroy(exa->shaders);
+   }
 
-    if (exa->cso) {
-       cso_release_all(exa->cso);
-       cso_destroy_context(exa->cso);
-    }
+   if (vsbuf && vsbuf->buffer)
+      pipe_buffer_reference(&vsbuf->buffer, NULL);
+
+   if (fsbuf && fsbuf->buffer)
+      pipe_buffer_reference(&fsbuf->buffer, NULL);
+
+   if (exa->cso) {
+      cso_release_all(exa->cso);
+      cso_destroy_context(exa->cso);
+   }
 
-    if (exa->ctx)
-	exa->ctx->destroy(exa->ctx);
+   if (exa->ctx)
+      exa->ctx->destroy(exa->ctx);
 
-    exaDriverFini(pScrn->pScreen);
-    xfree(exa);
-    ms->exa = NULL;
+   exaDriverFini(pScrn->pScreen);
+   xfree(exa);
+   ms->exa = NULL;
 }
 
 void *
 xorg_exa_init(ScrnInfoPtr pScrn)
 {
-    modesettingPtr ms = modesettingPTR(pScrn);
-    struct exa_context *exa;
-    ExaDriverPtr pExa;
-
-    exa = xcalloc(1, sizeof(struct exa_context));
-    if (!exa)
-	return NULL;
-
-    pExa = exaDriverAlloc();
-    if (!pExa) {
-	goto out_err;
-    }
-
-    memset(pExa, 0, sizeof(*pExa));
-
-    pExa->exa_major         = 2;
-    pExa->exa_minor         = 2;
-    pExa->memoryBase        = 0;
-    pExa->memorySize        = 0;
-    pExa->offScreenBase     = 0;
-    pExa->pixmapOffsetAlign = 0;
-    pExa->pixmapPitchAlign  = 1;
-    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
-    pExa->maxX              = 8191; /* FIXME */
-    pExa->maxY              = 8191; /* FIXME */
-
-    pExa->WaitMarker         = ExaWaitMarker;
-    pExa->MarkSync           = ExaMarkSync;
-    pExa->PrepareSolid       = ExaPrepareSolid;
-    pExa->Solid              = ExaSolid;
-    pExa->DoneSolid          = ExaDone;
-    pExa->PrepareCopy        = ExaPrepareCopy;
-    pExa->Copy               = ExaCopy;
-    pExa->DoneCopy           = ExaDone;
-    pExa->CheckComposite     = ExaCheckComposite;
-    pExa->PrepareComposite   = ExaPrepareComposite;
-    pExa->Composite          = ExaComposite;
-    pExa->DoneComposite      = ExaDoneComposite;
-    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
-    pExa->PrepareAccess      = ExaPrepareAccess;
-    pExa->FinishAccess       = ExaFinishAccess;
-    pExa->CreatePixmap       = ExaCreatePixmap;
-    pExa->DestroyPixmap      = ExaDestroyPixmap;
-    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
-
-    if (!exaDriverInit(pScrn->pScreen, pExa)) {
-	goto out_err;
-    }
-
-    exa->scrn = ms->screen;
-    exa->ctx = ms->api->create_context(ms->api, exa->scrn);
-    /* Share context with DRI */
-    ms->ctx = exa->ctx;
-
-    exa->cso = cso_create_context(exa->ctx);
-    exa->shaders = xorg_shaders_create(exa);
-
-    return (void *)exa;
+   modesettingPtr ms = modesettingPTR(pScrn);
+   struct exa_context *exa;
+   ExaDriverPtr pExa;
+
+   exa = xcalloc(1, sizeof(struct exa_context));
+   if (!exa)
+      return NULL;
+
+   pExa = exaDriverAlloc();
+   if (!pExa) {
+      goto out_err;
+   }
+
+   memset(pExa, 0, sizeof(*pExa));
+
+   pExa->exa_major         = 2;
+   pExa->exa_minor         = 2;
+   pExa->memoryBase        = 0;
+   pExa->memorySize        = 0;
+   pExa->offScreenBase     = 0;
+   pExa->pixmapOffsetAlign = 0;
+   pExa->pixmapPitchAlign  = 1;
+   pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
+   pExa->maxX              = 8191; /* FIXME */
+   pExa->maxY              = 8191; /* FIXME */
+
+   pExa->WaitMarker         = ExaWaitMarker;
+   pExa->MarkSync           = ExaMarkSync;
+   pExa->PrepareSolid       = ExaPrepareSolid;
+   pExa->Solid              = ExaSolid;
+   pExa->DoneSolid          = ExaDone;
+   pExa->PrepareCopy        = ExaPrepareCopy;
+   pExa->Copy               = ExaCopy;
+   pExa->DoneCopy           = ExaDone;
+   pExa->CheckComposite     = ExaCheckComposite;
+   pExa->PrepareComposite   = ExaPrepareComposite;
+   pExa->Composite          = ExaComposite;
+   pExa->DoneComposite      = ExaDoneComposite;
+   pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
+   pExa->PrepareAccess      = ExaPrepareAccess;
+   pExa->FinishAccess       = ExaFinishAccess;
+   pExa->CreatePixmap       = ExaCreatePixmap;
+   pExa->DestroyPixmap      = ExaDestroyPixmap;
+   pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
+
+   if (!exaDriverInit(pScrn->pScreen, pExa)) {
+      goto out_err;
+   }
+
+   exa->scrn = ms->screen;
+   exa->ctx = ms->api->create_context(ms->api, exa->scrn);
+   /* Share context with DRI */
+   ms->ctx = exa->ctx;
+
+   exa->cso = cso_create_context(exa->ctx);
+   exa->shaders = xorg_shaders_create(exa);
+
+   return (void *)exa;
+
+out_err:
+   xorg_exa_close(pScrn);
+
+   return NULL;
+}
 
-  out_err:
-    xorg_exa_close(pScrn);
+struct pipe_surface *
+exa_gpu_surface(struct exa_context *exa, struct exa_pixmap_priv *priv)
+{
+   return exa->scrn->get_tex_surface(exa->scrn, priv->tex, 0, 0, 0,
+                                     PIPE_BUFFER_USAGE_GPU_READ |
+                                     PIPE_BUFFER_USAGE_GPU_WRITE);
 
-    return NULL;
 }
 
-/* vim: set sw=4 ts=8 sts=4: */
diff --git a/src/gallium/state_trackers/xorg/xorg_exa.h b/src/gallium/state_trackers/xorg/xorg_exa.h
index 7f5c2bbeae2..0a93fa0bd7d 100644
--- a/src/gallium/state_trackers/xorg/xorg_exa.h
+++ b/src/gallium/state_trackers/xorg/xorg_exa.h
@@ -3,6 +3,8 @@
 
 #include "xorg_tracker.h"
 
+#include <pipe/p_state.h>
+
 struct cso_context;
 struct xorg_shaders;
 
@@ -13,6 +15,9 @@ struct exa_context
    struct pipe_screen *scrn;
    struct cso_context *cso;
    struct xorg_shaders *shaders;
+
+   struct pipe_constant_buffer vs_const_buffer;
+   struct pipe_constant_buffer fs_const_buffer;
 };
 
 
@@ -29,6 +34,8 @@ struct exa_pixmap_priv
    unsigned map_count;
 };
 
+struct pipe_surface *
+exa_gpu_surface(struct exa_context *exa, struct exa_pixmap_priv *priv);
 
 
 #endif
diff --git a/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c b/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c
index 04d8977a4cc..d561715fdec 100644
--- a/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c
+++ b/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c
@@ -17,14 +17,8 @@
 #include "cso_cache/cso_context.h"
 #include "cso_cache/cso_hash.h"
 
-struct xorg_shaders {
-   struct exa_context *exa;
-
-   struct cso_hash *vs_hash;
-   struct cso_hash *fs_hash;
-};
-
-/* SAMP[0]  = dst
+/* Fragment shader:
+ * SAMP[0]  = dst
  * SAMP[1]  = src
  * SAMP[2]  = mask
  * IN[0]    = pos dst
@@ -33,6 +27,13 @@ struct xorg_shaders {
  * CONST[0] = (0, 0, 0, 1)
  */
 
+struct xorg_shaders {
+   struct exa_context *exa;
+
+   struct cso_hash *vs_hash;
+   struct cso_hash *fs_hash;
+};
+
 static const char over_op[] =
    "SUB TEMP[3], CONST[0].wwww, TEMP[1].wwww\n"
    "MUL TEMP[3], TEMP[0], TEMP[3]\n"