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-rw-r--r--src/gallium/drivers/nv30/Makefile1
-rw-r--r--src/gallium/drivers/nv30/nv30_context.h2
-rw-r--r--src/gallium/drivers/nv30/nv30_state_viewport.c70
3 files changed, 73 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv30/Makefile b/src/gallium/drivers/nv30/Makefile
index 91601087a34..a6a8cf1df9c 100644
--- a/src/gallium/drivers/nv30/Makefile
+++ b/src/gallium/drivers/nv30/Makefile
@@ -19,6 +19,7 @@ DRIVER_SOURCES = \
nv30_state_rasterizer.c \
nv30_state_scissor.c \
nv30_state_stipple.c \
+ nv30_state_viewport.c \
nv30_surface.c \
nv30_vbo.c \
nv30_vertprog.c
diff --git a/src/gallium/drivers/nv30/nv30_context.h b/src/gallium/drivers/nv30/nv30_context.h
index 446e43a726d..eb7e5a8b124 100644
--- a/src/gallium/drivers/nv30/nv30_context.h
+++ b/src/gallium/drivers/nv30/nv30_context.h
@@ -92,6 +92,7 @@ struct nv30_blend_state_new {
struct nv30_state {
unsigned scissor_enabled;
unsigned stipple_enabled;
+ unsigned viewport_bypass;
struct nouveau_stateobj *hw[NV30_STATE_MAX];
};
@@ -120,6 +121,7 @@ struct nv30_context {
/* Context state */
struct nv30_blend_state_new *blend;
struct pipe_blend_color blend_colour;
+ struct pipe_viewport_state viewport;
struct pipe_framebuffer_state framebuffer;
struct nv30_rasterizer_state_new *rasterizer;
unsigned stipple[32];
diff --git a/src/gallium/drivers/nv30/nv30_state_viewport.c b/src/gallium/drivers/nv30/nv30_state_viewport.c
new file mode 100644
index 00000000000..951d40ebfdd
--- /dev/null
+++ b/src/gallium/drivers/nv30/nv30_state_viewport.c
@@ -0,0 +1,70 @@
+#include "nv30_context.h"
+
+static boolean
+nv30_state_viewport_validate(struct nv30_context *nv30)
+{
+ struct pipe_viewport_state *vpt = &nv30->viewport;
+ struct nouveau_stateobj *so;
+ unsigned bypass;
+
+ if (/*nv30->render_mode == HW &&*/ !nv30->rasterizer->pipe.bypass_clipping)
+ bypass = 0;
+ else
+ bypass = 1;
+
+ if (nv30->state.hw[NV30_STATE_VIEWPORT] &&
+ (bypass || !(nv30->dirty & NV30_NEW_VIEWPORT)) &&
+ nv30->state.viewport_bypass == bypass)
+ return FALSE;
+ nv30->state.viewport_bypass = bypass;
+
+ so = so_new(11, 0);
+ if (!bypass) {
+ so_method(so, nv30->screen->rankine,
+ NV34TCL_VIEWPORT_TRANSLATE_X, 8);
+ so_data (so, fui(vpt->translate[0]));
+ so_data (so, fui(vpt->translate[1]));
+ so_data (so, fui(vpt->translate[2]));
+ so_data (so, fui(vpt->translate[3]));
+ so_data (so, fui(vpt->scale[0]));
+ so_data (so, fui(vpt->scale[1]));
+ so_data (so, fui(vpt->scale[2]));
+ so_data (so, fui(vpt->scale[3]));
+/* so_method(so, nv30->screen->rankine, 0x1d78, 1);
+ so_data (so, 1);
+*/ } else {
+ so_method(so, nv30->screen->rankine,
+ NV34TCL_VIEWPORT_TRANSLATE_X, 8);
+ so_data (so, fui(0.0));
+ so_data (so, fui(0.0));
+ so_data (so, fui(0.0));
+ so_data (so, fui(0.0));
+ so_data (so, fui(1.0));
+ so_data (so, fui(1.0));
+ so_data (so, fui(1.0));
+ so_data (so, fui(0.0));
+ /* Not entirely certain what this is yet. The DDX uses this
+ * value also as it fixes rendering when you pass
+ * pre-transformed vertices to the GPU. My best gusss is that
+ * this bypasses some culling/clipping stage. Might be worth
+ * noting that points/lines are uneffected by whatever this
+ * value fixes, only filled polygons are effected.
+ */
+/* so_method(so, nv30->screen->rankine, 0x1d78, 1);
+ so_data (so, 0x110);
+*/ }
+ /* TODO/FIXME: never saw value 0x0110 in renouveau dumps, only 0x0001 */
+ so_method(so, nv30->screen->rankine, 0x1d78, 1);
+ so_data (so, 1);
+
+ so_ref(so, &nv30->state.hw[NV30_STATE_VIEWPORT]);
+ return TRUE;
+}
+
+struct nv30_state_entry nv30_state_viewport = {
+ .validate = nv30_state_viewport_validate,
+ .dirty = {
+ .pipe = NV30_NEW_VIEWPORT | NV30_NEW_RAST,
+ .hw = NV30_STATE_VIEWPORT
+ }
+};