#include "brw_defines.h"
#include "intel_batchbuffer.h"
#include "main/fbobject.h"
+#include "main/framebuffer.h"
+#include "main/viewport.h"
/* The clip VP defines the guardband region where expensive clipping is skipped
* and fragments are allowed to be generated and clipped out cheaply by the SF.
struct brw_clipper_viewport *vp;
vp = brw_state_batch(brw, AUB_TRACE_CLIP_VP_STATE,
- sizeof(*vp), 32, &brw->clip.vp_offset);
-
- /* According to the "Vertex X,Y Clamping and Quantization" section of the
- * Strips and Fans documentation, objects must not have a screen-space
- * extents of over 8192 pixels, or they may be mis-rasterized. The maximum
- * screen space coordinates of a small object may larger, but we have no
- * way to enforce the object size other than through clipping.
- *
- * If you're surprised that we set clip to -gbx to +gbx and it seems like
- * we'll end up with 16384 wide, note that for a 8192-wide render target,
- * we'll end up with a normal (-1, 1) clip volume that just covers the
- * drawable.
- */
- const float maximum_post_clamp_delta = 8192;
- float gbx = maximum_post_clamp_delta / (float) ctx->Viewport.Width;
- float gby = maximum_post_clamp_delta / (float) ctx->Viewport.Height;
-
- vp->xmin = -gbx;
- vp->xmax = gbx;
- vp->ymin = -gby;
- vp->ymax = gby;
-
- brw->state.dirty.cache |= CACHE_NEW_CLIP_VP;
+ sizeof(*vp) * ctx->Const.MaxViewports, 32, &brw->clip.vp_offset);
+
+ for (unsigned i = 0; i < ctx->Const.MaxViewports; i++) {
+ /* According to the "Vertex X,Y Clamping and Quantization" section of the
+ * Strips and Fans documentation, objects must not have a screen-space
+ * extents of over 8192 pixels, or they may be mis-rasterized. The maximum
+ * screen space coordinates of a small object may larger, but we have no
+ * way to enforce the object size other than through clipping.
+ *
+ * If you're surprised that we set clip to -gbx to +gbx and it seems like
+ * we'll end up with 16384 wide, note that for a 8192-wide render target,
+ * we'll end up with a normal (-1, 1) clip volume that just covers the
+ * drawable.
+ */
+ const float maximum_post_clamp_delta = 8192;
+ float gbx = maximum_post_clamp_delta / ctx->ViewportArray[i].Width;
+ float gby = maximum_post_clamp_delta / ctx->ViewportArray[i].Height;
+
+ vp[i].xmin = -gbx;
+ vp[i].xmax = gbx;
+ vp[i].ymin = -gby;
+ vp[i].ymax = gby;
+ }
+
+ brw->ctx.NewDriverState |= BRW_NEW_CLIP_VP;
}
const struct brw_tracked_state gen6_clip_vp = {
.dirty = {
.mesa = _NEW_VIEWPORT,
.brw = BRW_NEW_BATCH,
- .cache = 0,
},
.emit = gen6_upload_clip_vp,
};
gen6_upload_sf_vp(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
- const GLfloat depth_scale = 1.0F / ctx->DrawBuffer->_DepthMaxF;
- struct brw_sf_viewport *sfv;
+ struct gen6_sf_viewport *sfv;
GLfloat y_scale, y_bias;
const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
- const GLfloat *v = ctx->Viewport._WindowMap.m;
sfv = brw_state_batch(brw, AUB_TRACE_SF_VP_STATE,
- sizeof(*sfv), 32, &brw->sf.vp_offset);
- memset(sfv, 0, sizeof(*sfv));
+ sizeof(*sfv) * ctx->Const.MaxViewports,
+ 32, &brw->sf.vp_offset);
+ memset(sfv, 0, sizeof(*sfv) * ctx->Const.MaxViewports);
/* _NEW_BUFFERS */
if (render_to_fbo) {
y_scale = 1.0;
- y_bias = 0;
+ y_bias = 0.0;
} else {
y_scale = -1.0;
- y_bias = ctx->DrawBuffer->Height;
+ y_bias = (float)_mesa_geometric_height(ctx->DrawBuffer);
}
- /* _NEW_VIEWPORT */
- sfv->viewport.m00 = v[MAT_SX];
- sfv->viewport.m11 = v[MAT_SY] * y_scale;
- sfv->viewport.m22 = v[MAT_SZ] * depth_scale;
- sfv->viewport.m30 = v[MAT_TX];
- sfv->viewport.m31 = v[MAT_TY] * y_scale + y_bias;
- sfv->viewport.m32 = v[MAT_TZ] * depth_scale;
+ for (unsigned i = 0; i < ctx->Const.MaxViewports; i++) {
+ float scale[3], translate[3];
+
+ /* _NEW_VIEWPORT */
+ _mesa_get_viewport_xform(ctx, i, scale, translate);
+ sfv[i].m00 = scale[0];
+ sfv[i].m11 = scale[1] * y_scale;
+ sfv[i].m22 = scale[2];
+ sfv[i].m30 = translate[0];
+ sfv[i].m31 = translate[1] * y_scale + y_bias;
+ sfv[i].m32 = translate[2];
+
+ }
- brw->state.dirty.cache |= CACHE_NEW_SF_VP;
+ brw->ctx.NewDriverState |= BRW_NEW_SF_VP;
}
const struct brw_tracked_state gen6_sf_vp = {
.dirty = {
- .mesa = _NEW_VIEWPORT | _NEW_BUFFERS,
+ .mesa = _NEW_BUFFERS |
+ _NEW_VIEWPORT,
.brw = BRW_NEW_BATCH,
- .cache = 0,
},
.emit = gen6_upload_sf_vp,
};
const struct brw_tracked_state gen6_viewport_state = {
.dirty = {
.mesa = 0,
- .brw = (BRW_NEW_BATCH |
- BRW_NEW_STATE_BASE_ADDRESS),
- .cache = (CACHE_NEW_CLIP_VP |
- CACHE_NEW_SF_VP |
- CACHE_NEW_CC_VP)
+ .brw = BRW_NEW_BATCH |
+ BRW_NEW_CC_VP |
+ BRW_NEW_CLIP_VP |
+ BRW_NEW_SF_VP |
+ BRW_NEW_STATE_BASE_ADDRESS,
},
.emit = upload_viewport_state_pointers,
};
projects / mesa.git / blobdiff