*
**************************************************************************/
+#include <sys/errno.h>
#include "main/glheader.h"
#include "main/context.h"
#include "main/samplerobj.h"
#include "main/state.h"
#include "main/enums.h"
+#include "main/macros.h"
#include "tnl/tnl.h"
#include "vbo/vbo_context.h"
#include "swrast/swrast.h"
#include "swrast_setup/swrast_setup.h"
+#include "drivers/common/meta.h"
#include "brw_draw.h"
#include "brw_defines.h"
#include "brw_state.h"
#include "intel_batchbuffer.h"
+#include "intel_fbo.h"
+#include "intel_mipmap_tree.h"
+#include "intel_regions.h"
#define FILE_DEBUG_FLAG DEBUG_PRIMS
static void gen6_set_prim(struct brw_context *brw,
const struct _mesa_prim *prim)
{
- uint32_t hw_prim = prim_to_hw_prim[prim->mode];
+ uint32_t hw_prim;
DBG("PRIM: %s\n", _mesa_lookup_enum_by_nr(prim->mode));
+ if (brw->hiz.op) {
+ assert(prim->mode == GL_TRIANGLES);
+ hw_prim = _3DPRIM_RECTLIST;
+ } else {
+ hw_prim = prim_to_hw_prim[prim->mode];
+ }
+
if (hw_prim != brw->primitive) {
brw->primitive = hw_prim;
brw->state.dirty.brw |= BRW_NEW_PRIMITIVE;
brw->state.dirty.brw |= BRW_NEW_INPUT_DIMENSIONS;
}
+/*
+ * \brief Resolve buffers before drawing.
+ *
+ * Resolve the depth buffer's HiZ buffer and resolve the depth buffer of each
+ * enabled depth texture.
+ *
+ * (In the future, this will also perform MSAA resolves).
+ */
+static void
+brw_predraw_resolve_buffers(struct brw_context *brw)
+{
+ struct gl_context *ctx = &brw->intel.ctx;
+ struct intel_context *intel = &brw->intel;
+ struct intel_renderbuffer *depth_irb;
+ struct intel_texture_object *tex_obj;
+ bool did_resolve = false;
+
+ /* Avoid recursive HiZ op. */
+ if (brw->hiz.op) {
+ return;
+ }
+
+ /* Resolve the depth buffer's HiZ buffer. */
+ depth_irb = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_DEPTH);
+ if (depth_irb && depth_irb->mt) {
+ did_resolve |= intel_renderbuffer_resolve_hiz(intel, depth_irb);
+ }
+
+ /* Resolve depth buffer of each enabled depth texture. */
+ for (int i = 0; i < BRW_MAX_TEX_UNIT; i++) {
+ if (!ctx->Texture.Unit[i]._ReallyEnabled)
+ continue;
+ tex_obj = intel_texture_object(ctx->Texture.Unit[i]._Current);
+ if (!tex_obj || !tex_obj->mt)
+ continue;
+ did_resolve |= intel_miptree_all_slices_resolve_depth(intel, tex_obj->mt);
+ }
+
+ if (did_resolve) {
+ /* Call vbo_bind_array() to synchronize the vbo module's vertex
+ * attributes to the gl_context's.
+ *
+ * Details
+ * -------
+ * The vbo module tracks vertex attributes separately from the
+ * gl_context. Specifically, the vbo module maintins vertex attributes
+ * in vbo_exec_context::array::inputs, which is synchronized with
+ * gl_context::Array::ArrayObj::VertexAttrib by vbo_bind_array().
+ * vbo_draw_arrays() calls vbo_bind_array() to perform the
+ * synchronization before calling the real draw call,
+ * vbo_context::draw_arrays.
+ *
+ * At this point (after performing a resolve meta-op but before calling
+ * vbo_bind_array), the gl_context's vertex attributes have been
+ * restored to their original state (that is, their state before the
+ * meta-op began), but the vbo module's vertex attribute are those used
+ * in the last meta-op. Therefore we must manually synchronize the two with
+ * vbo_bind_array() before continuing with the original draw command.
+ */
+ _mesa_update_state(ctx);
+ vbo_bind_arrays(ctx);
+ _mesa_update_state(ctx);
+ }
+}
+
+/**
+ * \brief Call this after drawing to mark which buffers need resolving
+ *
+ * If the depth buffer was written to and if it has an accompanying HiZ
+ * buffer, then mark that it needs a depth resolve.
+ *
+ * (In the future, this will also mark needed MSAA resolves).
+ */
+static void brw_postdraw_set_buffers_need_resolve(struct brw_context *brw)
+{
+ struct gl_context *ctx = &brw->intel.ctx;
+ struct gl_framebuffer *fb = ctx->DrawBuffer;
+ struct intel_renderbuffer *depth_irb =
+ intel_get_renderbuffer(fb, BUFFER_DEPTH);
+
+ if (depth_irb &&
+ ctx->Depth.Mask &&
+ !brw->hiz.op) {
+ intel_renderbuffer_set_needs_depth_resolve(depth_irb);
+ }
+}
+
+static int
+verts_per_prim(GLenum mode)
+{
+ switch (mode) {
+ case GL_POINTS:
+ return 1;
+ case GL_LINE_STRIP:
+ case GL_LINE_LOOP:
+ case GL_LINES:
+ return 2;
+ case GL_TRIANGLE_STRIP:
+ case GL_TRIANGLE_FAN:
+ case GL_POLYGON:
+ case GL_TRIANGLES:
+ case GL_QUADS:
+ case GL_QUAD_STRIP:
+ return 3;
+ default:
+ _mesa_problem(NULL,
+ "unknown prim type in transform feedback primitive count");
+ return 0;
+ }
+}
+
+/**
+ * Update internal counters based on the the drawing operation described in
+ * prim.
+ */
+static void
+brw_update_primitive_count(struct brw_context *brw,
+ const struct _mesa_prim *prim)
+{
+ uint32_t count = count_tessellated_primitives(prim);
+ brw->sol.primitives_generated += count;
+ if (brw->intel.ctx.TransformFeedback.CurrentObject->Active &&
+ !brw->intel.ctx.TransformFeedback.CurrentObject->Paused) {
+ /* Update brw->sol.svbi_0_max_index to reflect the amount by which the
+ * hardware is going to increment SVBI 0 when this drawing operation
+ * occurs. This is necessary because the kernel does not (yet) save and
+ * restore GPU registers when context switching, so we'll need to be
+ * able to reload SVBI 0 with the correct value in case we have to start
+ * a new batch buffer.
+ */
+ unsigned verts = verts_per_prim(prim->mode);
+ uint32_t space_avail =
+ (brw->sol.svbi_0_max_index - brw->sol.svbi_0_starting_index) / verts;
+ uint32_t primitives_written = MIN2 (space_avail, count);
+ brw->sol.svbi_0_starting_index += verts * primitives_written;
+
+ /* And update the TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN query. */
+ brw->sol.primitives_written += primitives_written;
+ }
+}
+
/* May fail if out of video memory for texture or vbo upload, or on
* fallback conditions.
*/
{
struct intel_context *intel = intel_context(ctx);
struct brw_context *brw = brw_context(ctx);
- bool retval = false;
- bool warn = false;
+ bool retval = true;
GLuint i;
+ bool fail_next = false;
if (ctx->NewState)
_mesa_update_state( ctx );
*/
brw_validate_textures( brw );
+ /* Resolves must occur after updating state and finalizing textures but
+ * before setting up any hardware state for this draw call.
+ */
+ brw_predraw_resolve_buffers(brw);
+
/* Bind all inputs, derive varying and size information:
*/
brw_merge_inputs( brw, arrays );
* primitives.
*/
intel_batchbuffer_require_space(intel, estimated_max_prim_size, false);
+ intel_batchbuffer_save_state(intel);
if (intel->gen < 6)
brw_set_prim(brw, &prim[i]);
else
gen6_set_prim(brw, &prim[i]);
+retry:
+ /* Note that before the loop, brw->state.dirty.brw was set to != 0, and
+ * that the state updated in the loop outside of this block is that in
+ * *_set_prim or intel_batchbuffer_flush(), which only impacts
+ * brw->state.dirty.brw.
+ */
if (brw->state.dirty.brw) {
- brw_validate_state(brw);
+ intel->no_batch_wrap = true;
+ brw_upload_state(brw);
- /* Various fallback checks: */
- if (brw->intel.Fallback)
+ if (unlikely(brw->intel.Fallback)) {
+ intel->no_batch_wrap = false;
+ retval = false;
goto out;
-
- /* Check that we can fit our state in with our existing batchbuffer, or
- * flush otherwise.
- */
- if (dri_bufmgr_check_aperture_space(brw->state.validated_bos,
- brw->state.validated_bo_count)) {
- static bool warned;
- intel_batchbuffer_flush(intel);
-
- /* Validate the state after we flushed the batch (which would have
- * changed the set of dirty state). If we still fail to
- * check_aperture, warn of what's happening, but attempt to continue
- * on since it may succeed anyway, and the user would probably rather
- * see a failure and a warning than a fallback.
- */
- brw_validate_state(brw);
- if (!warned &&
- dri_bufmgr_check_aperture_space(brw->state.validated_bos,
- brw->state.validated_bo_count)) {
- warn = true;
- warned = true;
- }
}
-
- intel->no_batch_wrap = true;
- brw_upload_state(brw);
}
if (intel->gen >= 7)
intel->no_batch_wrap = false;
- retval = true;
+ if (dri_bufmgr_check_aperture_space(&intel->batch.bo, 1)) {
+ if (!fail_next) {
+ intel_batchbuffer_reset_to_saved(intel);
+ intel_batchbuffer_flush(intel);
+ fail_next = true;
+ goto retry;
+ } else {
+ if (intel_batchbuffer_flush(intel) == -ENOSPC) {
+ static bool warned = false;
+
+ if (!warned) {
+ fprintf(stderr, "i965: Single primitive emit exceeded"
+ "available aperture space\n");
+ warned = true;
+ }
+
+ retval = false;
+ }
+ }
+ }
+
+ if (!_mesa_meta_in_progress(ctx))
+ brw_update_primitive_count(brw, &prim[i]);
}
if (intel->always_flush_batch)
out:
brw_state_cache_check_size(brw);
-
- if (warn)
- fprintf(stderr, "i965: Single primitive emit potentially exceeded "
- "available aperture space\n");
-
- if (!retval)
- DBG("%s failed\n", __FUNCTION__);
+ brw_postdraw_set_buffers_need_resolve(brw);
return retval;
}
const struct _mesa_index_buffer *ib,
GLboolean index_bounds_valid,
GLuint min_index,
- GLuint max_index )
+ GLuint max_index,
+ struct gl_transform_feedback_object *tfb_vertcount )
{
bool retval;
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