swr/rast: Pull of RTAI gather & offset out of clip/bin code

[mesa.git] / src / gallium / drivers / swr / swr_clear.cpp

diff --git a/src/gallium/drivers/swr/swr_clear.cpp b/src/gallium/drivers/swr/swr_clear.cpp
index f59179f07116f12537c11e7d4968c3dc73db41c7..233432ee34aa9f51db74337b5b0d974237819138 100644 (file)
--- a/src/gallium/drivers/swr/swr_clear.cpp
+++ b/src/gallium/drivers/swr/swr_clear.cpp
@@ -35,7 +35,7 @@ swr_clear(struct pipe_context *pipe,
    struct pipe_framebuffer_state *fb = &ctx->framebuffer;
 
    UINT clearMask = 0;
-   int layers = 0;
+   unsigned layers = 0;
 
    if (!swr_check_render_cond(pipe))
       return;
@@ -47,20 +47,20 @@ swr_clear(struct pipe_context *pipe,
          if (fb->cbufs[i] && (buffers & (PIPE_CLEAR_COLOR0 << i))) {
             clearMask |= (SWR_ATTACHMENT_COLOR0_BIT << i);
             layers = std::max(layers, fb->cbufs[i]->u.tex.last_layer -
-                                      fb->cbufs[i]->u.tex.first_layer + 1);
+                                      fb->cbufs[i]->u.tex.first_layer + 1u);
          }
    }
 
    if (buffers & PIPE_CLEAR_DEPTH && fb->zsbuf) {
       clearMask |= SWR_ATTACHMENT_DEPTH_BIT;
       layers = std::max(layers, fb->zsbuf->u.tex.last_layer -
-                                fb->zsbuf->u.tex.first_layer + 1);
+                                fb->zsbuf->u.tex.first_layer + 1u);
    }
 
    if (buffers & PIPE_CLEAR_STENCIL && fb->zsbuf) {
       clearMask |= SWR_ATTACHMENT_STENCIL_BIT;
       layers = std::max(layers, fb->zsbuf->u.tex.last_layer -
-                                fb->zsbuf->u.tex.first_layer + 1);
+                                fb->zsbuf->u.tex.first_layer + 1u);
    }
 
 #if 0 // XXX HACK, override clear color alpha. On ubuntu, clears are
@@ -68,19 +68,27 @@ swr_clear(struct pipe_context *pipe,
    ((union pipe_color_union *)color)->f[3] = 1.0; /* cast off your const'd-ness */
 #endif
 
-   for (int i = 0; i < layers; ++i) {
+   SWR_RECT clear_rect;
+   /* If enabled, clear to scissor; otherwise clear full surface */
+   if (ctx->rasterizer && ctx->rasterizer->scissor) {
+      clear_rect = ctx->swr_scissor;
+   } else {
+      clear_rect = {0, 0, (int32_t)fb->width, (int32_t)fb->height};
+   }
+
+   for (unsigned i = 0; i < layers; ++i) {
       swr_update_draw_context(ctx);
-      SwrClearRenderTarget(ctx->swrContext, clearMask, i,
-                           color->f, depth, stencil,
-                           ctx->swr_scissor);
+      ctx->api.pfnSwrClearRenderTarget(ctx->swrContext, clearMask, i,
+                                       color->f, depth, stencil,
+                                       clear_rect);
 
       // Mask out the attachments that are out of layers.
       if (fb->zsbuf &&
-          fb->zsbuf->u.tex.last_layer - fb->zsbuf->u.tex.first_layer <= i)
+          (fb->zsbuf->u.tex.last_layer <= fb->zsbuf->u.tex.first_layer + i))
          clearMask &= ~(SWR_ATTACHMENT_DEPTH_BIT | SWR_ATTACHMENT_STENCIL_BIT);
       for (unsigned c = 0; c < fb->nr_cbufs; ++c) {
          const struct pipe_surface *sf = fb->cbufs[c];
-         if (sf && sf->u.tex.last_layer - sf->u.tex.first_layer <= i)
+         if (sf && (sf->u.tex.last_layer <= sf->u.tex.first_layer + i))
             clearMask &= ~(SWR_ATTACHMENT_COLOR0_BIT << c);
       }
    }