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-rw-r--r--src/gallium/drivers/r300/r300_context.c10
-rw-r--r--src/gallium/drivers/r300/r300_context.h23
-rw-r--r--src/gallium/drivers/r300/r300_render.c202
-rw-r--r--src/gallium/drivers/r300/r300_render.h36
-rw-r--r--src/gallium/drivers/r300/r300_state.c41
5 files changed, 275 insertions, 37 deletions
diff --git a/src/gallium/drivers/r300/r300_context.c b/src/gallium/drivers/r300/r300_context.c
index 1e1c7161ec..46fdf08794 100644
--- a/src/gallium/drivers/r300/r300_context.c
+++ b/src/gallium/drivers/r300/r300_context.c
@@ -175,6 +175,16 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen,
r300->context.draw_arrays = r300_draw_arrays;
r300->context.draw_elements = r300_draw_elements;
r300->context.draw_range_elements = r300_draw_range_elements;
+
+ if (r300screen->caps.is_r500) {
+ r300->emit_draw_arrays_immediate = r500_emit_draw_arrays_immediate;
+ r300->emit_draw_arrays = r500_emit_draw_arrays;
+ r300->emit_draw_elements = r500_emit_draw_elements;
+ } else {
+ r300->emit_draw_arrays_immediate = r300_emit_draw_arrays_immediate;
+ r300->emit_draw_arrays = r300_emit_draw_arrays;
+ r300->emit_draw_elements = r300_emit_draw_elements;
+ }
} else {
r300->context.draw_arrays = r300_swtcl_draw_arrays;
r300->context.draw_elements = r300_draw_elements;
diff --git a/src/gallium/drivers/r300/r300_context.h b/src/gallium/drivers/r300/r300_context.h
index 351bd2cdae..9d7e9d1226 100644
--- a/src/gallium/drivers/r300/r300_context.h
+++ b/src/gallium/drivers/r300/r300_context.h
@@ -79,6 +79,11 @@ struct r300_dsa_state {
uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
uint32_t stencil_ref_mask; /* R300_ZB_STENCILREFMASK: 0x4f08 */
uint32_t stencil_ref_bf; /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
+
+ /* Whether a two-sided stencil is enabled. */
+ boolean two_sided;
+ /* Whether a fallback should be used for a two-sided stencil ref value. */
+ boolean stencil_ref_bf_fallback;
};
struct r300_rs_state {
@@ -290,6 +295,21 @@ struct r300_context {
/* Parent class */
struct pipe_context context;
+ /* Emission of drawing packets. */
+ void (*emit_draw_arrays_immediate)(
+ struct r300_context *r300,
+ unsigned mode, unsigned start, unsigned count);
+
+ void (*emit_draw_arrays)(
+ struct r300_context *r300,
+ unsigned mode, unsigned count);
+
+ void (*emit_draw_elements)(
+ struct r300_context *r300, struct pipe_buffer* indexBuffer,
+ unsigned indexSize, unsigned minIndex, unsigned maxIndex,
+ unsigned mode, unsigned start, unsigned count);
+
+
/* The interface to the windowing system, etc. */
struct r300_winsys_screen *rws;
/* Screen. */
@@ -382,6 +402,9 @@ struct r300_context {
boolean scissor_enabled;
/* Whether rendering is conditional and should be skipped. */
boolean skip_rendering;
+ /* Whether the two-sided stencil ref value is different for front and
+ * back faces, and fallback should be used for r3xx-r4xx. */
+ boolean stencil_ref_bf_fallback;
/* upload managers */
struct u_upload_mgr *upload_vb;
struct u_upload_mgr *upload_ib;
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
index c2b13235a1..09355569fb 100644
--- a/src/gallium/drivers/r300/r300_render.c
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -162,10 +162,15 @@ static boolean immd_is_good_idea(struct r300_context *r300,
return TRUE;
}
-static void r300_emit_draw_arrays_immediate(struct r300_context *r300,
- unsigned mode,
- unsigned start,
- unsigned count)
+/*****************************************************************************
+ * The emission of draw packets for r500. Older GPUs may use these functions *
+ * after resolving fallback issues (e.g. stencil ref two-sided). *
+ ****************************************************************************/
+
+void r500_emit_draw_arrays_immediate(struct r300_context *r300,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
{
struct pipe_vertex_element* velem;
struct pipe_vertex_buffer* vbuf;
@@ -252,9 +257,9 @@ static void r300_emit_draw_arrays_immediate(struct r300_context *r300,
}
}
-static void r300_emit_draw_arrays(struct r300_context *r300,
- unsigned mode,
- unsigned count)
+void r500_emit_draw_arrays(struct r300_context *r300,
+ unsigned mode,
+ unsigned count)
{
#if defined(ENABLE_ALT_NUM_VERTS)
boolean alt_num_verts = count > 65535;
@@ -282,14 +287,14 @@ static void r300_emit_draw_arrays(struct r300_context *r300,
END_CS;
}
-static void r300_emit_draw_elements(struct r300_context *r300,
- struct pipe_buffer* indexBuffer,
- unsigned indexSize,
- unsigned minIndex,
- unsigned maxIndex,
- unsigned mode,
- unsigned start,
- unsigned count)
+void r500_emit_draw_elements(struct r300_context *r300,
+ struct pipe_buffer* indexBuffer,
+ unsigned indexSize,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
{
uint32_t count_dwords;
uint32_t offset_dwords = indexSize * start / sizeof(uint32_t);
@@ -347,6 +352,104 @@ static void r300_emit_draw_elements(struct r300_context *r300,
END_CS;
}
+/*****************************************************************************
+ * The emission of draw packets for r300 which take care of the two-sided *
+ * stencil ref fallback and call r500's functions. *
+ ****************************************************************************/
+
+/* Set drawing for front faces. */
+static void r300_begin_stencil_ref_fallback(struct r300_context *r300)
+{
+ struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+ CS_LOCALS(r300);
+
+ BEGIN_CS(2);
+ OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode | R300_CULL_BACK);
+ END_CS;
+}
+
+/* Set drawing for back faces. */
+static void r300_switch_stencil_ref_side(struct r300_context *r300)
+{
+ struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+ CS_LOCALS(r300);
+
+ BEGIN_CS(4);
+ OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode | R300_CULL_FRONT);
+ OUT_CS_REG(R300_ZB_STENCILREFMASK,
+ dsa->stencil_ref_bf | r300->stencil_ref.ref_value[1]);
+ END_CS;
+}
+
+/* Restore the original state. */
+static void r300_end_stencil_ref_fallback(struct r300_context *r300)
+{
+ struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+ CS_LOCALS(r300);
+
+ BEGIN_CS(4);
+ OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode);
+ OUT_CS_REG(R300_ZB_STENCILREFMASK,
+ dsa->stencil_ref_mask | r300->stencil_ref.ref_value[0]);
+ END_CS;
+}
+
+void r300_emit_draw_arrays_immediate(struct r300_context *r300,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
+{
+ if (!r300->stencil_ref_bf_fallback) {
+ r500_emit_draw_arrays_immediate(r300, mode, start, count);
+ } else {
+ r300_begin_stencil_ref_fallback(r300);
+ r500_emit_draw_arrays_immediate(r300, mode, start, count);
+ r300_switch_stencil_ref_side(r300);
+ r500_emit_draw_arrays_immediate(r300, mode, start, count);
+ r300_end_stencil_ref_fallback(r300);
+ }
+}
+
+void r300_emit_draw_arrays(struct r300_context *r300,
+ unsigned mode,
+ unsigned count)
+{
+ if (!r300->stencil_ref_bf_fallback) {
+ r500_emit_draw_arrays(r300, mode, count);
+ } else {
+ r300_begin_stencil_ref_fallback(r300);
+ r500_emit_draw_arrays(r300, mode, count);
+ r300_switch_stencil_ref_side(r300);
+ r500_emit_draw_arrays(r300, mode, count);
+ r300_end_stencil_ref_fallback(r300);
+ }
+}
+
+void r300_emit_draw_elements(struct r300_context *r300,
+ struct pipe_buffer* indexBuffer,
+ unsigned indexSize,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
+{
+ if (!r300->stencil_ref_bf_fallback) {
+ r500_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+ maxIndex, mode, start, count);
+ } else {
+ r300_begin_stencil_ref_fallback(r300);
+ r500_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+ maxIndex, mode, start, count);
+ r300_switch_stencil_ref_side(r300);
+ r500_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+ maxIndex, mode, start, count);
+ r300_end_stencil_ref_fallback(r300);
+ }
+}
+
static void r300_shorten_ubyte_elts(struct r300_context* r300,
struct pipe_buffer** elts,
unsigned start,
@@ -457,13 +560,13 @@ void r300_draw_range_elements(struct pipe_context* pipe,
u_upload_flush(r300->upload_vb);
u_upload_flush(r300->upload_ib);
if (alt_num_verts || count <= 65535) {
- r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
- maxIndex, mode, start, count);
+ r300->emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+ maxIndex, mode, start, count);
} else {
do {
short_count = MIN2(count, 65534);
- r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
- maxIndex, mode, start, short_count);
+ r300->emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+ maxIndex, mode, start, short_count);
start += short_count;
count -= short_count;
@@ -518,7 +621,7 @@ void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
r300_update_derived_state(r300);
if (immd_is_good_idea(r300, count)) {
- r300_emit_draw_arrays_immediate(r300, mode, start, count);
+ r300->emit_draw_arrays_immediate(r300, mode, start, count);
} else {
/* Make sure there are at least 128 spare dwords in the command buffer.
* (most of it being consumed by emit_aos) */
@@ -528,12 +631,12 @@ void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
if (alt_num_verts || count <= 65535) {
r300_emit_aos(r300, start);
- r300_emit_draw_arrays(r300, mode, count);
+ r300->emit_draw_arrays(r300, mode, count);
} else {
do {
short_count = MIN2(count, 65535);
r300_emit_aos(r300, start);
- r300_emit_draw_arrays(r300, mode, short_count);
+ r300->emit_draw_arrays(r300, mode, short_count);
start += short_count;
count -= short_count;
@@ -746,9 +849,9 @@ static boolean r300_render_set_primitive(struct vbuf_render* render,
return TRUE;
}
-static void r300_render_draw_arrays(struct vbuf_render* render,
- unsigned start,
- unsigned count)
+static void r500_render_draw_arrays(struct vbuf_render* render,
+ unsigned start,
+ unsigned count)
{
struct r300_render* r300render = r300_render(render);
struct r300_context* r300 = r300render->r300;
@@ -768,9 +871,9 @@ static void r300_render_draw_arrays(struct vbuf_render* render,
END_CS;
}
-static void r300_render_draw(struct vbuf_render* render,
- const ushort* indices,
- uint count)
+static void r500_render_draw(struct vbuf_render* render,
+ const ushort* indices,
+ uint count)
{
struct r300_render* r300render = r300_render(render);
struct r300_context* r300 = r300render->r300;
@@ -796,6 +899,40 @@ static void r300_render_draw(struct vbuf_render* render,
END_CS;
}
+static void r300_render_draw_arrays(struct vbuf_render* render,
+ unsigned start,
+ unsigned count)
+{
+ struct r300_context* r300 = r300_render(render)->r300;
+
+ if (!r300->stencil_ref_bf_fallback) {
+ r500_render_draw_arrays(render, start, count);
+ } else {
+ r300_begin_stencil_ref_fallback(r300);
+ r500_render_draw_arrays(render, start, count);
+ r300_switch_stencil_ref_side(r300);
+ r500_render_draw_arrays(render, start, count);
+ r300_end_stencil_ref_fallback(r300);
+ }
+}
+
+static void r300_render_draw(struct vbuf_render* render,
+ const ushort* indices,
+ uint count)
+{
+ struct r300_context* r300 = r300_render(render)->r300;
+
+ if (!r300->stencil_ref_bf_fallback) {
+ r500_render_draw(render, indices, count);
+ } else {
+ r300_begin_stencil_ref_fallback(r300);
+ r500_render_draw(render, indices, count);
+ r300_switch_stencil_ref_side(r300);
+ r500_render_draw(render, indices, count);
+ r300_end_stencil_ref_fallback(r300);
+ }
+}
+
static void r300_render_destroy(struct vbuf_render* render)
{
FREE(render);
@@ -816,8 +953,13 @@ static struct vbuf_render* r300_render_create(struct r300_context* r300)
r300render->base.map_vertices = r300_render_map_vertices;
r300render->base.unmap_vertices = r300_render_unmap_vertices;
r300render->base.set_primitive = r300_render_set_primitive;
- r300render->base.draw = r300_render_draw;
- r300render->base.draw_arrays = r300_render_draw_arrays;
+ if (r300->screen->caps.is_r500) {
+ r300render->base.draw = r500_render_draw;
+ r300render->base.draw_arrays = r500_render_draw_arrays;
+ } else {
+ r300render->base.draw = r300_render_draw;
+ r300render->base.draw_arrays = r300_render_draw_arrays;
+ }
r300render->base.release_vertices = r300_render_release_vertices;
r300render->base.destroy = r300_render_destroy;
diff --git a/src/gallium/drivers/r300/r300_render.h b/src/gallium/drivers/r300/r300_render.h
index 27b5e6a963..870e1fb53d 100644
--- a/src/gallium/drivers/r300/r300_render.h
+++ b/src/gallium/drivers/r300/r300_render.h
@@ -25,6 +25,42 @@
uint32_t r300_translate_primitive(unsigned prim);
+void r500_emit_draw_arrays_immediate(struct r300_context *r300,
+ unsigned mode,
+ unsigned start,
+ unsigned count);
+
+void r500_emit_draw_arrays(struct r300_context *r300,
+ unsigned mode,
+ unsigned count);
+
+void r500_emit_draw_elements(struct r300_context *r300,
+ struct pipe_buffer* indexBuffer,
+ unsigned indexSize,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count);
+
+void r300_emit_draw_arrays_immediate(struct r300_context *r300,
+ unsigned mode,
+ unsigned start,
+ unsigned count);
+
+void r300_emit_draw_arrays(struct r300_context *r300,
+ unsigned mode,
+ unsigned count);
+
+void r300_emit_draw_elements(struct r300_context *r300,
+ struct pipe_buffer* indexBuffer,
+ unsigned indexSize,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count);
+
void r300_draw_range_elements(struct pipe_context* pipe,
struct pipe_buffer* indexBuffer,
unsigned indexSize,
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 2adb3e7221..2309f35326 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -444,6 +444,8 @@ static void*
(state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT);
if (state->stencil[1].enabled) {
+ dsa->two_sided = TRUE;
+
dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK;
dsa->z_stencil_control |=
(r300_translate_depth_stencil_function(state->stencil[1].func) <<
@@ -455,14 +457,16 @@ static void*
(r300_translate_stencil_op(state->stencil[1].zfail_op) <<
R300_S_BACK_ZFAIL_OP_SHIFT);
- if (caps->is_r500)
- {
+ dsa->stencil_ref_bf =
+ (state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) |
+ (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT);
+
+ if (caps->is_r500) {
dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK;
- dsa->stencil_ref_bf =
- (state->stencil[1].valuemask <<
- R300_STENCILMASK_SHIFT) |
- (state->stencil[1].writemask <<
- R300_STENCILWRITEMASK_SHIFT);
+ } else {
+ dsa->stencil_ref_bf_fallback =
+ (state->stencil[0].valuemask != state->stencil[1].valuemask ||
+ state->stencil[0].writemask != state->stencil[1].writemask);
}
}
}
@@ -483,13 +487,33 @@ static void*
return (void*)dsa;
}
+static void r300_update_stencil_ref_fallback_status(struct r300_context *r300)
+{
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+
+ if (r300->screen->caps.is_r500) {
+ return;
+ }
+
+ r300->stencil_ref_bf_fallback =
+ dsa->stencil_ref_bf_fallback ||
+ (dsa->two_sided &&
+ r300->stencil_ref.ref_value[0] != r300->stencil_ref.ref_value[1]);
+}
+
/* Bind DSA state. */
static void r300_bind_dsa_state(struct pipe_context* pipe,
void* state)
{
struct r300_context* r300 = r300_context(pipe);
+ if (!state) {
+ return;
+ }
+
UPDATE_STATE(state, r300->dsa_state);
+
+ r300_update_stencil_ref_fallback_status(r300);
}
/* Free DSA state. */
@@ -503,8 +527,11 @@ static void r300_set_stencil_ref(struct pipe_context* pipe,
const struct pipe_stencil_ref* sr)
{
struct r300_context* r300 = r300_context(pipe);
+
r300->stencil_ref = *sr;
r300->dsa_state.dirty = TRUE;
+
+ r300_update_stencil_ref_fallback_status(r300);
}
/* This switcheroo is needed just because of goddamned MACRO_SWITCH. */
generated by cgit v1.2.3 (git 2.51.0) at 2025-10-31 22:52:28 +0000