/*
* Mesa 3-D graphics library
- * Version: 7.2
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
*/
+#include <stdbool.h>
+#include <stdio.h>
+#include "main/arrayobj.h"
#include "main/glheader.h"
#include "main/bufferobj.h"
-#include "main/compiler.h"
#include "main/context.h"
#include "main/enums.h"
-#include "main/mfeatures.h"
#include "main/state.h"
+#include "main/varray.h"
#include "main/vtxfmt.h"
-#include "vbo_context.h"
#include "vbo_noop.h"
+#include "vbo_private.h"
static void
-vbo_exec_debug_verts( struct vbo_exec_context *exec )
+vbo_exec_debug_verts(struct vbo_exec_context *exec)
{
GLuint count = exec->vtx.vert_count;
GLuint i;
printf("%s: %u vertices %d primitives, %d vertsize\n",
- __FUNCTION__,
- count,
- exec->vtx.prim_count,
- exec->vtx.vertex_size);
+ __func__,
+ count,
+ exec->vtx.prim_count,
+ exec->vtx.vertex_size);
for (i = 0 ; i < exec->vtx.prim_count ; i++) {
struct _mesa_prim *prim = &exec->vtx.prim[i];
- printf(" prim %d: %s%s %d..%d %s %s\n",
- i,
- _mesa_lookup_prim_by_nr(prim->mode),
- prim->weak ? " (weak)" : "",
- prim->start,
- prim->start + prim->count,
- prim->begin ? "BEGIN" : "(wrap)",
- prim->end ? "END" : "(wrap)");
+ printf(" prim %d: %s %d..%d %s %s\n",
+ i,
+ _mesa_lookup_prim_by_nr(prim->mode),
+ prim->start,
+ prim->start + prim->count,
+ prim->begin ? "BEGIN" : "(wrap)",
+ prim->end ? "END" : "(wrap)");
}
}
-/*
- * NOTE: Need to have calculated primitives by this point -- do it on the fly.
- * NOTE: Old 'parity' issue is gone.
+/**
+ * Copy zero, one or two vertices from the current vertex buffer into
+ * the temporary "copy" buffer.
+ * This is used when a single primitive overflows a vertex buffer and
+ * we need to continue the primitive in a new vertex buffer.
+ * The temporary "copy" buffer holds the vertices which need to get
+ * copied from the old buffer to the new one.
*/
static GLuint
-vbo_copy_vertices( struct vbo_exec_context *exec )
+vbo_copy_vertices(struct vbo_exec_context *exec)
{
- GLuint nr = exec->vtx.prim[exec->vtx.prim_count-1].count;
+ struct _mesa_prim *last_prim = &exec->vtx.prim[exec->vtx.prim_count - 1];
+ const GLuint nr = last_prim->count;
GLuint ovf, i;
- GLuint sz = exec->vtx.vertex_size;
- GLfloat *dst = exec->vtx.copied.buffer;
- const GLfloat *src = (exec->vtx.buffer_map +
- exec->vtx.prim[exec->vtx.prim_count-1].start *
- exec->vtx.vertex_size);
-
+ const GLuint sz = exec->vtx.vertex_size;
+ fi_type *dst = exec->vtx.copied.buffer;
+ const fi_type *src = exec->vtx.buffer_map + last_prim->start * sz;
switch (exec->ctx->Driver.CurrentExecPrimitive) {
case GL_POINTS:
case GL_LINES:
ovf = nr&1;
for (i = 0 ; i < ovf ; i++)
- memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );
+ memcpy(dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat));
return i;
case GL_TRIANGLES:
ovf = nr%3;
for (i = 0 ; i < ovf ; i++)
- memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );
+ memcpy(dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat));
return i;
case GL_QUADS:
ovf = nr&3;
for (i = 0 ; i < ovf ; i++)
- memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );
+ memcpy(dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat));
return i;
case GL_LINE_STRIP:
if (nr == 0) {
- return 0;
+ return 0;
}
else {
- memcpy( dst, src+(nr-1)*sz, sz * sizeof(GLfloat) );
- return 1;
+ memcpy(dst, src+(nr-1)*sz, sz * sizeof(GLfloat));
+ return 1;
}
case GL_LINE_LOOP:
+ if (last_prim->begin == 0) {
+ /* We're dealing with the second or later section of a split/wrapped
+ * GL_LINE_LOOP. Since we're converting line loops to line strips,
+ * we've already increment the last_prim->start counter by one to
+ * skip the 0th vertex in the loop. We need to undo that (effectively
+ * subtract one from last_prim->start) so that we copy the 0th vertex
+ * to the next vertex buffer.
+ */
+ assert(last_prim->start > 0);
+ src -= sz;
+ }
+ /* fall-through */
case GL_TRIANGLE_FAN:
case GL_POLYGON:
if (nr == 0) {
- return 0;
+ return 0;
}
else if (nr == 1) {
- memcpy( dst, src+0, sz * sizeof(GLfloat) );
- return 1;
+ memcpy(dst, src+0, sz * sizeof(GLfloat));
+ return 1;
}
else {
- memcpy( dst, src+0, sz * sizeof(GLfloat) );
- memcpy( dst+sz, src+(nr-1)*sz, sz * sizeof(GLfloat) );
- return 2;
+ memcpy(dst, src+0, sz * sizeof(GLfloat));
+ memcpy(dst+sz, src+(nr-1)*sz, sz * sizeof(GLfloat));
+ return 2;
}
case GL_TRIANGLE_STRIP:
/* no parity issue, but need to make sure the tri is not drawn twice */
if (nr & 1) {
- exec->vtx.prim[exec->vtx.prim_count-1].count--;
+ last_prim->count--;
}
/* fallthrough */
case GL_QUAD_STRIP:
break;
}
for (i = 0 ; i < ovf ; i++)
- memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );
+ memcpy(dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat));
return i;
case PRIM_OUTSIDE_BEGIN_END:
return 0;
default:
- assert(0);
+ unreachable("Unexpected primitive type");
return 0;
}
}
/* TODO: populate these as the vertex is defined:
*/
static void
-vbo_exec_bind_arrays( struct gl_context *ctx )
+vbo_exec_bind_arrays(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
+ struct gl_vertex_array_object *vao = vbo->VAO;
struct vbo_exec_context *exec = &vbo->exec;
- struct gl_client_array *arrays = exec->vtx.arrays;
- const GLuint count = exec->vtx.vert_count;
- const GLuint *map;
- GLuint attr;
- GLbitfield64 varying_inputs = 0x0;
-
- /* Install the default (ie Current) attributes first, then overlay
- * all active ones.
- */
- switch (get_program_mode(exec->ctx)) {
- case VP_NONE:
- for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
- exec->vtx.inputs[attr] = &vbo->currval[VBO_ATTRIB_POS+attr];
- }
- for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {
- ASSERT(VERT_ATTRIB_GENERIC(attr) < Elements(exec->vtx.inputs));
- exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] =
- &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT+attr];
- }
- map = vbo->map_vp_none;
- break;
- case VP_ARB:
- for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
- exec->vtx.inputs[attr] = &vbo->currval[VBO_ATTRIB_POS+attr];
- }
- for (attr = 0; attr < VERT_ATTRIB_GENERIC_MAX; attr++) {
- ASSERT(VERT_ATTRIB_GENERIC(attr) < Elements(exec->vtx.inputs));
- exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] =
- &vbo->currval[VBO_ATTRIB_GENERIC0+attr];
- }
- map = vbo->map_vp_arb;
- /* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.
- * In that case we effectively need to route the data from
- * glVertexAttrib(0, val) calls to feed into the GENERIC0 input.
- */
- if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&
- (ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {
- exec->vtx.inputs[VERT_ATTRIB_GENERIC0] = exec->vtx.inputs[0];
- exec->vtx.attrsz[VERT_ATTRIB_GENERIC0] = exec->vtx.attrsz[0];
- exec->vtx.attrptr[VERT_ATTRIB_GENERIC0] = exec->vtx.attrptr[0];
- exec->vtx.attrsz[0] = 0;
- }
- break;
- default:
- assert(0);
+ GLintptr buffer_offset;
+ if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
+ assert(exec->vtx.bufferobj->Mappings[MAP_INTERNAL].Pointer);
+ buffer_offset = exec->vtx.bufferobj->Mappings[MAP_INTERNAL].Offset +
+ exec->vtx.buffer_offset;
+ } else {
+ /* Ptr into ordinary app memory */
+ buffer_offset = (GLbyte *)exec->vtx.buffer_map - (GLbyte *)NULL;
}
- /* Make all active attributes (including edgeflag) available as
- * arrays of floats.
+ const gl_vertex_processing_mode mode = ctx->VertexProgram._VPMode;
+
+ /* Compute the bitmasks of vao_enabled arrays */
+ GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, exec->vtx.enabled);
+
+ /* At first disable arrays no longer needed */
+ _mesa_disable_vertex_array_attribs(ctx, vao, VERT_BIT_ALL & ~vao_enabled);
+ assert((~vao_enabled & vao->Enabled) == 0);
+
+ /* Bind the buffer object */
+ const GLuint stride = exec->vtx.vertex_size*sizeof(GLfloat);
+ _mesa_bind_vertex_buffer(ctx, vao, 0, exec->vtx.bufferobj, buffer_offset,
+ stride);
+
+ /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
+ * Note that the position/generic0 aliasing is done in the VAO.
*/
- for (attr = 0; attr < VERT_ATTRIB_MAX ; attr++) {
- const GLuint src = map[attr];
-
- if (exec->vtx.attrsz[src]) {
- GLsizeiptr offset = (GLbyte *)exec->vtx.attrptr[src] -
- (GLbyte *)exec->vtx.vertex;
-
- /* override the default array set above */
- ASSERT(attr < Elements(exec->vtx.inputs));
- ASSERT(attr < Elements(exec->vtx.arrays)); /* arrays[] */
- exec->vtx.inputs[attr] = &arrays[attr];
-
- if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
- /* a real buffer obj: Ptr is an offset, not a pointer*/
- assert(exec->vtx.bufferobj->Pointer); /* buf should be mapped */
- assert(offset >= 0);
- arrays[attr].Ptr = (GLubyte *)exec->vtx.bufferobj->Offset + offset;
- }
- else {
- /* Ptr into ordinary app memory */
- arrays[attr].Ptr = (GLubyte *)exec->vtx.buffer_map + offset;
- }
- arrays[attr].Size = exec->vtx.attrsz[src];
- arrays[attr].StrideB = exec->vtx.vertex_size * sizeof(GLfloat);
- arrays[attr].Stride = exec->vtx.vertex_size * sizeof(GLfloat);
- arrays[attr].Type = GL_FLOAT;
- arrays[attr].Format = GL_RGBA;
- arrays[attr].Enabled = 1;
- arrays[attr]._ElementSize = arrays[attr].Size * sizeof(GLfloat);
- _mesa_reference_buffer_object(ctx,
- &arrays[attr].BufferObj,
- exec->vtx.bufferobj);
- arrays[attr]._MaxElement = count; /* ??? */
-
- varying_inputs |= VERT_BIT(attr);
- }
+ const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
+ /* Now set the enabled arrays */
+ GLbitfield mask = vao_enabled;
+ while (mask) {
+ const int vao_attr = u_bit_scan(&mask);
+ const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
+
+ const GLubyte size = exec->vtx.attr[vbo_attr].size;
+ const GLenum16 type = exec->vtx.attr[vbo_attr].type;
+ const GLuint offset = (GLuint)((GLbyte *)exec->vtx.attrptr[vbo_attr] -
+ (GLbyte *)exec->vtx.vertex);
+ assert(offset <= ctx->Const.MaxVertexAttribRelativeOffset);
+
+ /* Set and enable */
+ _vbo_set_attrib_format(ctx, vao, vao_attr, buffer_offset,
+ size, type, offset);
+
+ /* The vao is initially created with all bindings set to 0. */
+ assert(vao->VertexAttrib[vao_attr].BufferBindingIndex == 0);
}
+ _mesa_enable_vertex_array_attribs(ctx, vao, vao_enabled);
+ assert(vao_enabled == vao->Enabled);
+ assert(!_mesa_is_bufferobj(exec->vtx.bufferobj) ||
+ (vao_enabled & ~vao->VertexAttribBufferMask) == 0);
- _mesa_set_varying_vp_inputs( ctx, varying_inputs );
- ctx->NewDriverState |= ctx->DriverFlags.NewArray;
+ _mesa_set_draw_vao(ctx, vao, _vbo_get_vao_filter(mode));
}
* Unmap the VBO. This is called before drawing.
*/
static void
-vbo_exec_vtx_unmap( struct vbo_exec_context *exec )
+vbo_exec_vtx_unmap(struct vbo_exec_context *exec)
{
if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
struct gl_context *ctx = exec->ctx;
-
- if (ctx->Driver.FlushMappedBufferRange) {
- GLintptr offset = exec->vtx.buffer_used - exec->vtx.bufferobj->Offset;
- GLsizeiptr length = (exec->vtx.buffer_ptr - exec->vtx.buffer_map) * sizeof(float);
+
+ if (ctx->Driver.FlushMappedBufferRange &&
+ !ctx->Extensions.ARB_buffer_storage) {
+ GLintptr offset = exec->vtx.buffer_used -
+ exec->vtx.bufferobj->Mappings[MAP_INTERNAL].Offset;
+ GLsizeiptr length = (exec->vtx.buffer_ptr - exec->vtx.buffer_map) *
+ sizeof(float);
if (length)
ctx->Driver.FlushMappedBufferRange(ctx, offset, length,
- exec->vtx.bufferobj);
+ exec->vtx.bufferobj,
+ MAP_INTERNAL);
}
exec->vtx.buffer_used += (exec->vtx.buffer_ptr -
assert(exec->vtx.buffer_used <= VBO_VERT_BUFFER_SIZE);
assert(exec->vtx.buffer_ptr != NULL);
-
- ctx->Driver.UnmapBuffer(ctx, exec->vtx.bufferobj);
+
+ ctx->Driver.UnmapBuffer(ctx, exec->vtx.bufferobj, MAP_INTERNAL);
exec->vtx.buffer_map = NULL;
exec->vtx.buffer_ptr = NULL;
exec->vtx.max_vert = 0;
}
}
+static bool
+vbo_exec_buffer_has_space(struct vbo_exec_context *exec)
+{
+ return VBO_VERT_BUFFER_SIZE > exec->vtx.buffer_used + 1024;
+}
+
/**
* Map the vertex buffer to begin storing glVertex, glColor, etc data.
*/
void
-vbo_exec_vtx_map( struct vbo_exec_context *exec )
+vbo_exec_vtx_map(struct vbo_exec_context *exec)
{
struct gl_context *ctx = exec->ctx;
- const GLenum accessRange = GL_MAP_WRITE_BIT | /* for MapBufferRange */
- GL_MAP_INVALIDATE_RANGE_BIT |
- GL_MAP_UNSYNCHRONIZED_BIT |
- GL_MAP_FLUSH_EXPLICIT_BIT |
- MESA_MAP_NOWAIT_BIT;
const GLenum usage = GL_STREAM_DRAW_ARB;
-
+ GLenum accessRange = GL_MAP_WRITE_BIT | /* for MapBufferRange */
+ GL_MAP_UNSYNCHRONIZED_BIT;
+
+ if (ctx->Extensions.ARB_buffer_storage) {
+ /* We sometimes read from the buffer, so map it for read too.
+ * Only the persistent mapping can do that, because the non-persistent
+ * mapping uses flags that are incompatible with GL_MAP_READ_BIT.
+ */
+ accessRange |= GL_MAP_PERSISTENT_BIT |
+ GL_MAP_COHERENT_BIT |
+ GL_MAP_READ_BIT;
+ } else {
+ accessRange |= GL_MAP_INVALIDATE_RANGE_BIT |
+ GL_MAP_FLUSH_EXPLICIT_BIT |
+ MESA_MAP_NOWAIT_BIT;
+ }
+
if (!_mesa_is_bufferobj(exec->vtx.bufferobj))
return;
assert(!exec->vtx.buffer_map);
assert(!exec->vtx.buffer_ptr);
- if (VBO_VERT_BUFFER_SIZE > exec->vtx.buffer_used + 1024) {
+ if (vbo_exec_buffer_has_space(exec)) {
/* The VBO exists and there's room for more */
if (exec->vtx.bufferobj->Size > 0) {
- exec->vtx.buffer_map =
- (GLfloat *)ctx->Driver.MapBufferRange(ctx,
- exec->vtx.buffer_used,
- (VBO_VERT_BUFFER_SIZE -
- exec->vtx.buffer_used),
- accessRange,
- exec->vtx.bufferobj);
+ exec->vtx.buffer_map = (fi_type *)
+ ctx->Driver.MapBufferRange(ctx,
+ exec->vtx.buffer_used,
+ VBO_VERT_BUFFER_SIZE
+ - exec->vtx.buffer_used,
+ accessRange,
+ exec->vtx.bufferobj,
+ MAP_INTERNAL);
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
}
else {
exec->vtx.buffer_ptr = exec->vtx.buffer_map = NULL;
}
}
-
+
if (!exec->vtx.buffer_map) {
/* Need to allocate a new VBO */
exec->vtx.buffer_used = 0;
if (ctx->Driver.BufferData(ctx, GL_ARRAY_BUFFER_ARB,
- VBO_VERT_BUFFER_SIZE,
- NULL, usage, exec->vtx.bufferobj)) {
+ VBO_VERT_BUFFER_SIZE,
+ NULL, usage,
+ GL_MAP_WRITE_BIT |
+ (ctx->Extensions.ARB_buffer_storage ?
+ GL_MAP_PERSISTENT_BIT |
+ GL_MAP_COHERENT_BIT |
+ GL_MAP_READ_BIT : 0) |
+ GL_DYNAMIC_STORAGE_BIT |
+ GL_CLIENT_STORAGE_BIT,
+ exec->vtx.bufferobj)) {
/* buffer allocation worked, now map the buffer */
exec->vtx.buffer_map =
- (GLfloat *)ctx->Driver.MapBufferRange(ctx,
+ (fi_type *)ctx->Driver.MapBufferRange(ctx,
0, VBO_VERT_BUFFER_SIZE,
accessRange,
- exec->vtx.bufferobj);
+ exec->vtx.bufferobj,
+ MAP_INTERNAL);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "VBO allocation");
}
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
+ exec->vtx.buffer_offset = 0;
if (!exec->vtx.buffer_map) {
/* out of memory */
- _mesa_install_exec_vtxfmt( ctx, &exec->vtxfmt_noop );
+ _mesa_install_exec_vtxfmt(ctx, &exec->vtxfmt_noop);
}
else {
if (_mesa_using_noop_vtxfmt(ctx->Exec)) {
/**
* Execute the buffer and save copied verts.
- * \param keep_unmapped if true, leave the VBO unmapped when we're done.
*/
void
-vbo_exec_vtx_flush(struct vbo_exec_context *exec, GLboolean keepUnmapped)
+vbo_exec_vtx_flush(struct vbo_exec_context *exec)
{
+ /* Only unmap if persistent mappings are unsupported. */
+ bool persistent_mapping = exec->ctx->Extensions.ARB_buffer_storage &&
+ _mesa_is_bufferobj(exec->vtx.bufferobj) &&
+ exec->vtx.buffer_map;
+
if (0)
- vbo_exec_debug_verts( exec );
+ vbo_exec_debug_verts(exec);
- if (exec->vtx.prim_count &&
+ if (exec->vtx.prim_count &&
exec->vtx.vert_count) {
- exec->vtx.copied.nr = vbo_copy_vertices( exec );
+ exec->vtx.copied.nr = vbo_copy_vertices(exec);
if (exec->vtx.copied.nr != exec->vtx.vert_count) {
- struct gl_context *ctx = exec->ctx;
-
- /* Before the update_state() as this may raise _NEW_VARYING_VP_INPUTS
- * from _mesa_set_varying_vp_inputs().
- */
- vbo_exec_bind_arrays( ctx );
+ struct gl_context *ctx = exec->ctx;
+
+ /* Prepare and set the exec draws internal VAO for drawing. */
+ vbo_exec_bind_arrays(ctx);
if (ctx->NewState)
- _mesa_update_state( ctx );
+ _mesa_update_state(ctx);
+
+ if (!persistent_mapping)
+ vbo_exec_vtx_unmap(exec);
- if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
- vbo_exec_vtx_unmap( exec );
- }
+ assert(ctx->NewState == 0);
if (0)
- printf("%s %d %d\n", __FUNCTION__, exec->vtx.prim_count,
- exec->vtx.vert_count);
-
- vbo_context(ctx)->draw_prims( ctx,
- exec->vtx.prim,
- exec->vtx.prim_count,
- NULL,
- GL_TRUE,
- 0,
- exec->vtx.vert_count - 1,
- NULL);
-
- /* If using a real VBO, get new storage -- unless asked not to.
- */
- if (_mesa_is_bufferobj(exec->vtx.bufferobj) && !keepUnmapped) {
- vbo_exec_vtx_map( exec );
- }
+ printf("%s %d %d\n", __func__, exec->vtx.prim_count,
+ exec->vtx.vert_count);
+
+ ctx->Driver.Draw(ctx, exec->vtx.prim, exec->vtx.prim_count,
+ NULL, GL_TRUE, 0, exec->vtx.vert_count - 1,
+ NULL, 0, NULL);
+
+ /* Get new storage -- unless asked not to. */
+ if (!persistent_mapping)
+ vbo_exec_vtx_map(exec);
}
}
- /* May have to unmap explicitly if we didn't draw:
- */
- if (keepUnmapped &&
- _mesa_is_bufferobj(exec->vtx.bufferobj) &&
- exec->vtx.buffer_map) {
- vbo_exec_vtx_unmap( exec );
+ if (persistent_mapping) {
+ exec->vtx.buffer_used += (exec->vtx.buffer_ptr - exec->vtx.buffer_map) *
+ sizeof(float);
+ exec->vtx.buffer_map = exec->vtx.buffer_ptr;
+
+ /* Set the buffer offset for the next draw. */
+ exec->vtx.buffer_offset = exec->vtx.buffer_used;
+
+ if (!vbo_exec_buffer_has_space(exec)) {
+ /* This will allocate a new buffer. */
+ vbo_exec_vtx_unmap(exec);
+ vbo_exec_vtx_map(exec);
+ }
}
- if (keepUnmapped || exec->vtx.vertex_size == 0)
+ if (exec->vtx.vertex_size == 0)
exec->vtx.max_vert = 0;
else
- exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) /
- (exec->vtx.vertex_size * sizeof(GLfloat)));
+ exec->vtx.max_vert = vbo_compute_max_verts(exec);
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
exec->vtx.prim_count = 0;
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