1 /**************************************************************************
3 Copyright 2002-2008 VMware, Inc.
7 Permission is hereby granted, free of charge, to any person obtaining a
8 copy of this software and associated documentation files (the "Software"),
9 to deal in the Software without restriction, including without limitation
10 on the rights to use, copy, modify, merge, publish, distribute, sub
11 license, and/or sell copies of the Software, and to permit persons to whom
12 the Software is furnished to do so, subject to the following conditions:
14 The above copyright notice and this permission notice (including the next
15 paragraph) shall be included in all copies or substantial portions of the
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keithw@vmware.com>
33 #include "main/glheader.h"
34 #include "main/bufferobj.h"
35 #include "main/context.h"
36 #include "main/macros.h"
37 #include "main/vtxfmt.h"
38 #include "main/dlist.h"
39 #include "main/eval.h"
40 #include "main/state.h"
41 #include "main/light.h"
42 #include "main/api_arrayelt.h"
43 #include "main/draw_validate.h"
44 #include "main/dispatch.h"
45 #include "util/bitscan.h"
48 #include "vbo_private.h"
51 /** ID/name for immediate-mode VBO */
52 #define IMM_BUFFER_NAME 0xaabbccdd
56 vbo_reset_all_attr(struct vbo_exec_context
*exec
);
60 * Close off the last primitive, execute the buffer, restart the
61 * primitive. This is called when we fill a vertex buffer before
65 vbo_exec_wrap_buffers(struct vbo_exec_context
*exec
)
67 if (exec
->vtx
.prim_count
== 0) {
68 exec
->vtx
.copied
.nr
= 0;
69 exec
->vtx
.vert_count
= 0;
70 exec
->vtx
.buffer_ptr
= exec
->vtx
.buffer_map
;
73 struct _mesa_prim
*last_prim
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
74 const GLuint last_begin
= last_prim
->begin
;
77 if (_mesa_inside_begin_end(exec
->ctx
)) {
78 last_prim
->count
= exec
->vtx
.vert_count
- last_prim
->start
;
81 last_count
= last_prim
->count
;
83 /* Special handling for wrapping GL_LINE_LOOP */
84 if (last_prim
->mode
== GL_LINE_LOOP
&&
87 /* draw this section of the incomplete line loop as a line strip */
88 last_prim
->mode
= GL_LINE_STRIP
;
89 if (!last_prim
->begin
) {
90 /* This is not the first section of the line loop, so don't
91 * draw the 0th vertex. We're saving it until we draw the
92 * very last section of the loop.
99 /* Execute the buffer and save copied vertices.
101 if (exec
->vtx
.vert_count
)
102 vbo_exec_vtx_flush(exec
, GL_FALSE
);
104 exec
->vtx
.prim_count
= 0;
105 exec
->vtx
.copied
.nr
= 0;
108 /* Emit a glBegin to start the new list.
110 assert(exec
->vtx
.prim_count
== 0);
112 if (_mesa_inside_begin_end(exec
->ctx
)) {
113 exec
->vtx
.prim
[0].mode
= exec
->ctx
->Driver
.CurrentExecPrimitive
;
114 exec
->vtx
.prim
[0].begin
= 0;
115 exec
->vtx
.prim
[0].end
= 0;
116 exec
->vtx
.prim
[0].start
= 0;
117 exec
->vtx
.prim
[0].count
= 0;
118 exec
->vtx
.prim_count
++;
120 if (exec
->vtx
.copied
.nr
== last_count
)
121 exec
->vtx
.prim
[0].begin
= last_begin
;
128 * Deal with buffer wrapping where provoked by the vertex buffer
129 * filling up, as opposed to upgrade_vertex().
132 vbo_exec_vtx_wrap(struct vbo_exec_context
*exec
)
134 unsigned numComponents
;
136 /* Run pipeline on current vertices, copy wrapped vertices
137 * to exec->vtx.copied.
139 vbo_exec_wrap_buffers(exec
);
141 if (!exec
->vtx
.buffer_ptr
) {
142 /* probably ran out of memory earlier when allocating the VBO */
146 /* Copy stored stored vertices to start of new list.
148 assert(exec
->vtx
.max_vert
- exec
->vtx
.vert_count
> exec
->vtx
.copied
.nr
);
150 numComponents
= exec
->vtx
.copied
.nr
* exec
->vtx
.vertex_size
;
151 memcpy(exec
->vtx
.buffer_ptr
,
152 exec
->vtx
.copied
.buffer
,
153 numComponents
* sizeof(fi_type
));
154 exec
->vtx
.buffer_ptr
+= numComponents
;
155 exec
->vtx
.vert_count
+= exec
->vtx
.copied
.nr
;
157 exec
->vtx
.copied
.nr
= 0;
162 * Copy the active vertex's values to the ctx->Current fields.
165 vbo_exec_copy_to_current(struct vbo_exec_context
*exec
)
167 struct gl_context
*ctx
= exec
->ctx
;
168 struct vbo_context
*vbo
= vbo_context(ctx
);
169 GLbitfield64 enabled
= exec
->vtx
.enabled
& (~BITFIELD64_BIT(VBO_ATTRIB_POS
));
172 const int i
= u_bit_scan64(&enabled
);
174 /* Note: the exec->vtx.current[i] pointers point into the
175 * ctx->Current.Attrib and ctx->Light.Material.Attrib arrays.
177 GLfloat
*current
= (GLfloat
*)vbo
->current
[i
].Ptr
;
178 fi_type tmp
[8]; /* space for doubles */
181 if (exec
->vtx
.attrtype
[i
] == GL_DOUBLE
||
182 exec
->vtx
.attrtype
[i
] == GL_UNSIGNED_INT64_ARB
)
185 assert(exec
->vtx
.attrsz
[i
]);
187 if (exec
->vtx
.attrtype
[i
] == GL_DOUBLE
||
188 exec
->vtx
.attrtype
[i
] == GL_UNSIGNED_INT64_ARB
) {
189 memset(tmp
, 0, sizeof(tmp
));
190 memcpy(tmp
, exec
->vtx
.attrptr
[i
], exec
->vtx
.attrsz
[i
] * sizeof(GLfloat
));
192 COPY_CLEAN_4V_TYPE_AS_UNION(tmp
,
194 exec
->vtx
.attrptr
[i
],
195 exec
->vtx
.attrtype
[i
]);
198 if (exec
->vtx
.attrtype
[i
] != vbo
->current
[i
].Format
.Type
||
199 memcmp(current
, tmp
, 4 * sizeof(GLfloat
) * dmul
) != 0) {
200 memcpy(current
, tmp
, 4 * sizeof(GLfloat
) * dmul
);
202 /* Given that we explicitly state size here, there is no need
203 * for the COPY_CLEAN above, could just copy 16 bytes and be
204 * done. The only problem is when Mesa accesses ctx->Current
207 /* Size here is in components - not bytes */
208 vbo_set_vertex_format(&vbo
->current
[i
].Format
,
209 exec
->vtx
.attrsz
[i
] / dmul
,
210 exec
->vtx
.attrtype
[i
]);
212 /* This triggers rather too much recalculation of Mesa state
213 * that doesn't get used (eg light positions).
215 if (i
>= VBO_ATTRIB_MAT_FRONT_AMBIENT
&&
216 i
<= VBO_ATTRIB_MAT_BACK_INDEXES
)
217 ctx
->NewState
|= _NEW_LIGHT
;
219 ctx
->NewState
|= _NEW_CURRENT_ATTRIB
;
223 /* Colormaterial -- this kindof sucks.
225 if (ctx
->Light
.ColorMaterialEnabled
&&
226 exec
->vtx
.attrsz
[VBO_ATTRIB_COLOR0
]) {
227 _mesa_update_color_material(ctx
,
228 ctx
->Current
.Attrib
[VBO_ATTRIB_COLOR0
]);
234 * Copy current vertex attribute values into the current vertex.
237 vbo_exec_copy_from_current(struct vbo_exec_context
*exec
)
239 struct gl_context
*ctx
= exec
->ctx
;
240 struct vbo_context
*vbo
= vbo_context(ctx
);
243 for (i
= VBO_ATTRIB_POS
+ 1; i
< VBO_ATTRIB_MAX
; i
++) {
244 if (exec
->vtx
.attrtype
[i
] == GL_DOUBLE
||
245 exec
->vtx
.attrtype
[i
] == GL_UNSIGNED_INT64_ARB
) {
246 memcpy(exec
->vtx
.attrptr
[i
], vbo
->current
[i
].Ptr
,
247 exec
->vtx
.attrsz
[i
] * sizeof(GLfloat
));
249 const fi_type
*current
= (fi_type
*) vbo
->current
[i
].Ptr
;
250 switch (exec
->vtx
.attrsz
[i
]) {
251 case 4: exec
->vtx
.attrptr
[i
][3] = current
[3];
252 case 3: exec
->vtx
.attrptr
[i
][2] = current
[2];
253 case 2: exec
->vtx
.attrptr
[i
][1] = current
[1];
254 case 1: exec
->vtx
.attrptr
[i
][0] = current
[0];
263 * Flush existing data, set new attrib size, replay copied vertices.
264 * This is called when we transition from a small vertex attribute size
265 * to a larger one. Ex: glTexCoord2f -> glTexCoord4f.
266 * We need to go back over the previous 2-component texcoords and insert
267 * zero and one values.
268 * \param attr VBO_ATTRIB_x vertex attribute value
271 vbo_exec_wrap_upgrade_vertex(struct vbo_exec_context
*exec
,
272 GLuint attr
, GLuint newSize
)
274 struct gl_context
*ctx
= exec
->ctx
;
275 struct vbo_context
*vbo
= vbo_context(ctx
);
276 const GLint lastcount
= exec
->vtx
.vert_count
;
277 fi_type
*old_attrptr
[VBO_ATTRIB_MAX
];
278 const GLuint old_vtx_size
= exec
->vtx
.vertex_size
; /* floats per vertex */
279 const GLuint oldSize
= exec
->vtx
.attrsz
[attr
];
282 assert(attr
< VBO_ATTRIB_MAX
);
284 /* Run pipeline on current vertices, copy wrapped vertices
285 * to exec->vtx.copied.
287 vbo_exec_wrap_buffers(exec
);
289 if (unlikely(exec
->vtx
.copied
.nr
)) {
290 /* We're in the middle of a primitive, keep the old vertex
291 * format around to be able to translate the copied vertices to
294 memcpy(old_attrptr
, exec
->vtx
.attrptr
, sizeof(old_attrptr
));
297 if (unlikely(oldSize
)) {
298 /* Do a COPY_TO_CURRENT to ensure back-copying works for the
299 * case when the attribute already exists in the vertex and is
300 * having its size increased.
302 vbo_exec_copy_to_current(exec
);
305 /* Heuristic: Attempt to isolate attributes received outside
306 * begin/end so that they don't bloat the vertices.
308 if (!_mesa_inside_begin_end(ctx
) &&
309 !oldSize
&& lastcount
> 8 && exec
->vtx
.vertex_size
) {
310 vbo_exec_copy_to_current(exec
);
311 vbo_reset_all_attr(exec
);
316 exec
->vtx
.attrsz
[attr
] = newSize
;
317 exec
->vtx
.vertex_size
+= newSize
- oldSize
;
318 exec
->vtx
.max_vert
= vbo_compute_max_verts(exec
);
319 exec
->vtx
.vert_count
= 0;
320 exec
->vtx
.buffer_ptr
= exec
->vtx
.buffer_map
;
321 exec
->vtx
.enabled
|= BITFIELD64_BIT(attr
);
323 if (unlikely(oldSize
)) {
324 /* Size changed, recalculate all the attrptr[] values
326 fi_type
*tmp
= exec
->vtx
.vertex
;
328 for (i
= 0 ; i
< VBO_ATTRIB_MAX
; i
++) {
329 if (exec
->vtx
.attrsz
[i
]) {
330 exec
->vtx
.attrptr
[i
] = tmp
;
331 tmp
+= exec
->vtx
.attrsz
[i
];
334 exec
->vtx
.attrptr
[i
] = NULL
; /* will not be dereferenced */
337 /* Copy from current to repopulate the vertex with correct
340 vbo_exec_copy_from_current(exec
);
343 /* Just have to append the new attribute at the end */
344 exec
->vtx
.attrptr
[attr
] = exec
->vtx
.vertex
+
345 exec
->vtx
.vertex_size
- newSize
;
348 /* Replay stored vertices to translate them
349 * to new format here.
351 * -- No need to replay - just copy piecewise
353 if (unlikely(exec
->vtx
.copied
.nr
)) {
354 fi_type
*data
= exec
->vtx
.copied
.buffer
;
355 fi_type
*dest
= exec
->vtx
.buffer_ptr
;
357 assert(exec
->vtx
.buffer_ptr
== exec
->vtx
.buffer_map
);
359 for (i
= 0 ; i
< exec
->vtx
.copied
.nr
; i
++) {
360 GLbitfield64 enabled
= exec
->vtx
.enabled
;
362 const int j
= u_bit_scan64(&enabled
);
363 GLuint sz
= exec
->vtx
.attrsz
[j
];
364 GLint old_offset
= old_attrptr
[j
] - exec
->vtx
.vertex
;
365 GLint new_offset
= exec
->vtx
.attrptr
[j
] - exec
->vtx
.vertex
;
372 COPY_CLEAN_4V_TYPE_AS_UNION(tmp
, oldSize
,
374 exec
->vtx
.attrtype
[j
]);
375 COPY_SZ_4V(dest
+ new_offset
, newSize
, tmp
);
377 fi_type
*current
= (fi_type
*)vbo
->current
[j
].Ptr
;
378 COPY_SZ_4V(dest
+ new_offset
, sz
, current
);
382 COPY_SZ_4V(dest
+ new_offset
, sz
, data
+ old_offset
);
386 data
+= old_vtx_size
;
387 dest
+= exec
->vtx
.vertex_size
;
390 exec
->vtx
.buffer_ptr
= dest
;
391 exec
->vtx
.vert_count
+= exec
->vtx
.copied
.nr
;
392 exec
->vtx
.copied
.nr
= 0;
398 * This is when a vertex attribute transitions to a different size.
399 * For example, we saw a bunch of glTexCoord2f() calls and now we got a
400 * glTexCoord4f() call. We promote the array from size=2 to size=4.
401 * \param newSize size of new vertex (number of 32-bit words).
402 * \param attr VBO_ATTRIB_x vertex attribute value
405 vbo_exec_fixup_vertex(struct gl_context
*ctx
, GLuint attr
,
406 GLuint newSize
, GLenum newType
)
408 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
410 assert(attr
< VBO_ATTRIB_MAX
);
412 if (newSize
> exec
->vtx
.attrsz
[attr
] ||
413 newType
!= exec
->vtx
.attrtype
[attr
]) {
414 /* New size is larger. Need to flush existing vertices and get
415 * an enlarged vertex format.
417 vbo_exec_wrap_upgrade_vertex(exec
, attr
, newSize
);
419 else if (newSize
< exec
->vtx
.active_sz
[attr
]) {
422 vbo_get_default_vals_as_union(exec
->vtx
.attrtype
[attr
]);
424 /* New size is smaller - just need to fill in some
425 * zeros. Don't need to flush or wrap.
427 for (i
= newSize
; i
<= exec
->vtx
.attrsz
[attr
]; i
++)
428 exec
->vtx
.attrptr
[attr
][i
-1] = id
[i
-1];
431 exec
->vtx
.active_sz
[attr
] = newSize
;
432 exec
->vtx
.attrtype
[attr
] = newType
;
434 /* Does setting NeedFlush belong here? Necessitates resetting
435 * vtxfmt on each flush (otherwise flags won't get reset
439 ctx
->Driver
.NeedFlush
|= FLUSH_STORED_VERTICES
;
444 * Called upon first glVertex, glColor, glTexCoord, etc.
447 vbo_exec_begin_vertices(struct gl_context
*ctx
)
449 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
451 vbo_exec_vtx_map(exec
);
453 assert((ctx
->Driver
.NeedFlush
& FLUSH_UPDATE_CURRENT
) == 0);
454 assert(exec
->begin_vertices_flags
);
456 ctx
->Driver
.NeedFlush
|= exec
->begin_vertices_flags
;
461 * This macro is used to implement all the glVertex, glColor, glTexCoord,
462 * glVertexAttrib, etc functions.
463 * \param A VBO_ATTRIB_x attribute index
464 * \param N attribute size (1..4)
465 * \param T type (GL_FLOAT, GL_DOUBLE, GL_INT, GL_UNSIGNED_INT)
466 * \param C cast type (fi_type or double)
467 * \param V0, V1, v2, V3 attribute value
469 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
471 struct vbo_exec_context *exec = &vbo_context(ctx)->exec; \
472 int sz = (sizeof(C) / sizeof(GLfloat)); \
474 assert(sz == 1 || sz == 2); \
476 /* check if attribute size or type is changing */ \
477 if (unlikely(exec->vtx.active_sz[A] != N * sz) || \
478 unlikely(exec->vtx.attrtype[A] != T)) { \
479 vbo_exec_fixup_vertex(ctx, A, N * sz, T); \
482 /* store vertex attribute in vertex buffer */ \
484 C *dest = (C *)exec->vtx.attrptr[A]; \
485 if (N>0) dest[0] = V0; \
486 if (N>1) dest[1] = V1; \
487 if (N>2) dest[2] = V2; \
488 if (N>3) dest[3] = V3; \
489 assert(exec->vtx.attrtype[A] == T); \
493 /* This is a glVertex call */ \
496 if (unlikely((ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) == 0)) { \
497 vbo_exec_begin_vertices(ctx); \
500 if (unlikely(!exec->vtx.buffer_ptr)) { \
501 vbo_exec_vtx_map(exec); \
503 assert(exec->vtx.buffer_ptr); \
505 /* copy 32-bit words */ \
506 for (i = 0; i < exec->vtx.vertex_size; i++) \
507 exec->vtx.buffer_ptr[i] = exec->vtx.vertex[i]; \
509 exec->vtx.buffer_ptr += exec->vtx.vertex_size; \
511 /* Set FLUSH_STORED_VERTICES to indicate that there's now */ \
512 /* something to draw (not just updating a color or texcoord).*/ \
513 ctx->Driver.NeedFlush |= FLUSH_STORED_VERTICES; \
515 if (++exec->vtx.vert_count >= exec->vtx.max_vert) \
516 vbo_exec_vtx_wrap(exec); \
518 /* we now have accumulated per-vertex attributes */ \
519 ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT; \
525 #define ERROR(err) _mesa_error(ctx, err, __func__)
526 #define TAG(x) vbo_##x
528 #include "vbo_attrib_tmp.h"
533 * Execute a glMaterial call. Note that if GL_COLOR_MATERIAL is enabled,
534 * this may be a (partial) no-op.
536 static void GLAPIENTRY
537 vbo_Materialfv(GLenum face
, GLenum pname
, const GLfloat
*params
)
539 GLbitfield updateMats
;
540 GET_CURRENT_CONTEXT(ctx
);
542 /* This function should be a no-op when it tries to update material
543 * attributes which are currently tracking glColor via glColorMaterial.
544 * The updateMats var will be a mask of the MAT_BIT_FRONT/BACK_x bits
545 * indicating which material attributes can actually be updated below.
547 if (ctx
->Light
.ColorMaterialEnabled
) {
548 updateMats
= ~ctx
->Light
._ColorMaterialBitmask
;
551 /* GL_COLOR_MATERIAL is disabled so don't skip any material updates */
552 updateMats
= ALL_MATERIAL_BITS
;
555 if (ctx
->API
== API_OPENGL_COMPAT
&& face
== GL_FRONT
) {
556 updateMats
&= FRONT_MATERIAL_BITS
;
558 else if (ctx
->API
== API_OPENGL_COMPAT
&& face
== GL_BACK
) {
559 updateMats
&= BACK_MATERIAL_BITS
;
561 else if (face
!= GL_FRONT_AND_BACK
) {
562 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterial(invalid face)");
568 if (updateMats
& MAT_BIT_FRONT_EMISSION
)
569 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_EMISSION
, 4, params
);
570 if (updateMats
& MAT_BIT_BACK_EMISSION
)
571 MAT_ATTR(VBO_ATTRIB_MAT_BACK_EMISSION
, 4, params
);
574 if (updateMats
& MAT_BIT_FRONT_AMBIENT
)
575 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_AMBIENT
, 4, params
);
576 if (updateMats
& MAT_BIT_BACK_AMBIENT
)
577 MAT_ATTR(VBO_ATTRIB_MAT_BACK_AMBIENT
, 4, params
);
580 if (updateMats
& MAT_BIT_FRONT_DIFFUSE
)
581 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_DIFFUSE
, 4, params
);
582 if (updateMats
& MAT_BIT_BACK_DIFFUSE
)
583 MAT_ATTR(VBO_ATTRIB_MAT_BACK_DIFFUSE
, 4, params
);
586 if (updateMats
& MAT_BIT_FRONT_SPECULAR
)
587 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_SPECULAR
, 4, params
);
588 if (updateMats
& MAT_BIT_BACK_SPECULAR
)
589 MAT_ATTR(VBO_ATTRIB_MAT_BACK_SPECULAR
, 4, params
);
592 if (*params
< 0 || *params
> ctx
->Const
.MaxShininess
) {
593 _mesa_error(ctx
, GL_INVALID_VALUE
,
594 "glMaterial(invalid shininess: %f out range [0, %f])",
595 *params
, ctx
->Const
.MaxShininess
);
598 if (updateMats
& MAT_BIT_FRONT_SHININESS
)
599 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_SHININESS
, 1, params
);
600 if (updateMats
& MAT_BIT_BACK_SHININESS
)
601 MAT_ATTR(VBO_ATTRIB_MAT_BACK_SHININESS
, 1, params
);
603 case GL_COLOR_INDEXES
:
604 if (ctx
->API
!= API_OPENGL_COMPAT
) {
605 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterialfv(pname)");
608 if (updateMats
& MAT_BIT_FRONT_INDEXES
)
609 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_INDEXES
, 3, params
);
610 if (updateMats
& MAT_BIT_BACK_INDEXES
)
611 MAT_ATTR(VBO_ATTRIB_MAT_BACK_INDEXES
, 3, params
);
613 case GL_AMBIENT_AND_DIFFUSE
:
614 if (updateMats
& MAT_BIT_FRONT_AMBIENT
)
615 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_AMBIENT
, 4, params
);
616 if (updateMats
& MAT_BIT_FRONT_DIFFUSE
)
617 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_DIFFUSE
, 4, params
);
618 if (updateMats
& MAT_BIT_BACK_AMBIENT
)
619 MAT_ATTR(VBO_ATTRIB_MAT_BACK_AMBIENT
, 4, params
);
620 if (updateMats
& MAT_BIT_BACK_DIFFUSE
)
621 MAT_ATTR(VBO_ATTRIB_MAT_BACK_DIFFUSE
, 4, params
);
624 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterialfv(pname)");
631 * Flush (draw) vertices.
632 * \param unmap - leave VBO unmapped after flushing?
635 vbo_exec_FlushVertices_internal(struct vbo_exec_context
*exec
, GLboolean unmap
)
637 if (exec
->vtx
.vert_count
|| unmap
) {
638 vbo_exec_vtx_flush(exec
, unmap
);
641 if (exec
->vtx
.vertex_size
) {
642 vbo_exec_copy_to_current(exec
);
643 vbo_reset_all_attr(exec
);
648 static void GLAPIENTRY
649 vbo_exec_EvalCoord1f(GLfloat u
)
651 GET_CURRENT_CONTEXT(ctx
);
652 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
656 if (exec
->eval
.recalculate_maps
)
657 vbo_exec_eval_update(exec
);
659 for (i
= 0; i
<= VBO_ATTRIB_TEX7
; i
++) {
660 if (exec
->eval
.map1
[i
].map
)
661 if (exec
->vtx
.active_sz
[i
] != exec
->eval
.map1
[i
].sz
)
662 vbo_exec_fixup_vertex(ctx
, i
, exec
->eval
.map1
[i
].sz
, GL_FLOAT
);
666 memcpy(exec
->vtx
.copied
.buffer
, exec
->vtx
.vertex
,
667 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
669 vbo_exec_do_EvalCoord1f(exec
, u
);
671 memcpy(exec
->vtx
.vertex
, exec
->vtx
.copied
.buffer
,
672 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
676 static void GLAPIENTRY
677 vbo_exec_EvalCoord2f(GLfloat u
, GLfloat v
)
679 GET_CURRENT_CONTEXT(ctx
);
680 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
684 if (exec
->eval
.recalculate_maps
)
685 vbo_exec_eval_update(exec
);
687 for (i
= 0; i
<= VBO_ATTRIB_TEX7
; i
++) {
688 if (exec
->eval
.map2
[i
].map
)
689 if (exec
->vtx
.active_sz
[i
] != exec
->eval
.map2
[i
].sz
)
690 vbo_exec_fixup_vertex(ctx
, i
, exec
->eval
.map2
[i
].sz
, GL_FLOAT
);
693 if (ctx
->Eval
.AutoNormal
)
694 if (exec
->vtx
.active_sz
[VBO_ATTRIB_NORMAL
] != 3)
695 vbo_exec_fixup_vertex(ctx
, VBO_ATTRIB_NORMAL
, 3, GL_FLOAT
);
698 memcpy(exec
->vtx
.copied
.buffer
, exec
->vtx
.vertex
,
699 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
701 vbo_exec_do_EvalCoord2f(exec
, u
, v
);
703 memcpy(exec
->vtx
.vertex
, exec
->vtx
.copied
.buffer
,
704 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
708 static void GLAPIENTRY
709 vbo_exec_EvalCoord1fv(const GLfloat
*u
)
711 vbo_exec_EvalCoord1f(u
[0]);
715 static void GLAPIENTRY
716 vbo_exec_EvalCoord2fv(const GLfloat
*u
)
718 vbo_exec_EvalCoord2f(u
[0], u
[1]);
722 static void GLAPIENTRY
723 vbo_exec_EvalPoint1(GLint i
)
725 GET_CURRENT_CONTEXT(ctx
);
726 GLfloat du
= ((ctx
->Eval
.MapGrid1u2
- ctx
->Eval
.MapGrid1u1
) /
727 (GLfloat
) ctx
->Eval
.MapGrid1un
);
728 GLfloat u
= i
* du
+ ctx
->Eval
.MapGrid1u1
;
730 vbo_exec_EvalCoord1f(u
);
734 static void GLAPIENTRY
735 vbo_exec_EvalPoint2(GLint i
, GLint j
)
737 GET_CURRENT_CONTEXT(ctx
);
738 GLfloat du
= ((ctx
->Eval
.MapGrid2u2
- ctx
->Eval
.MapGrid2u1
) /
739 (GLfloat
) ctx
->Eval
.MapGrid2un
);
740 GLfloat dv
= ((ctx
->Eval
.MapGrid2v2
- ctx
->Eval
.MapGrid2v1
) /
741 (GLfloat
) ctx
->Eval
.MapGrid2vn
);
742 GLfloat u
= i
* du
+ ctx
->Eval
.MapGrid2u1
;
743 GLfloat v
= j
* dv
+ ctx
->Eval
.MapGrid2v1
;
745 vbo_exec_EvalCoord2f(u
, v
);
750 * Called via glBegin.
752 static void GLAPIENTRY
753 vbo_exec_Begin(GLenum mode
)
755 GET_CURRENT_CONTEXT(ctx
);
756 struct vbo_context
*vbo
= vbo_context(ctx
);
757 struct vbo_exec_context
*exec
= &vbo
->exec
;
760 if (_mesa_inside_begin_end(ctx
)) {
761 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBegin");
765 if (!_mesa_valid_prim_mode(ctx
, mode
, "glBegin")) {
770 _mesa_update_state(ctx
);
772 CALL_Begin(ctx
->Exec
, (mode
));
776 if (!_mesa_valid_to_render(ctx
, "glBegin")) {
780 /* Heuristic: attempt to isolate attributes occurring outside
783 if (exec
->vtx
.vertex_size
&& !exec
->vtx
.attrsz
[0])
784 vbo_exec_FlushVertices_internal(exec
, GL_FALSE
);
786 i
= exec
->vtx
.prim_count
++;
787 exec
->vtx
.prim
[i
].mode
= mode
;
788 exec
->vtx
.prim
[i
].begin
= 1;
789 exec
->vtx
.prim
[i
].end
= 0;
790 exec
->vtx
.prim
[i
].indexed
= 0;
791 exec
->vtx
.prim
[i
].pad
= 0;
792 exec
->vtx
.prim
[i
].start
= exec
->vtx
.vert_count
;
793 exec
->vtx
.prim
[i
].count
= 0;
794 exec
->vtx
.prim
[i
].num_instances
= 1;
795 exec
->vtx
.prim
[i
].base_instance
= 0;
796 exec
->vtx
.prim
[i
].is_indirect
= 0;
798 ctx
->Driver
.CurrentExecPrimitive
= mode
;
800 ctx
->Exec
= ctx
->BeginEnd
;
802 /* We may have been called from a display list, in which case we should
803 * leave dlist.c's dispatch table in place.
805 if (ctx
->CurrentClientDispatch
== ctx
->MarshalExec
) {
806 ctx
->CurrentServerDispatch
= ctx
->Exec
;
807 } else if (ctx
->CurrentClientDispatch
== ctx
->OutsideBeginEnd
) {
808 ctx
->CurrentClientDispatch
= ctx
->Exec
;
809 _glapi_set_dispatch(ctx
->CurrentClientDispatch
);
811 assert(ctx
->CurrentClientDispatch
== ctx
->Save
);
817 * Try to merge / concatenate the two most recent VBO primitives.
820 try_vbo_merge(struct vbo_exec_context
*exec
)
822 struct _mesa_prim
*cur
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
824 assert(exec
->vtx
.prim_count
>= 1);
826 vbo_try_prim_conversion(cur
);
828 if (exec
->vtx
.prim_count
>= 2) {
829 struct _mesa_prim
*prev
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 2];
830 assert(prev
== cur
- 1);
832 if (vbo_can_merge_prims(prev
, cur
)) {
837 vbo_merge_prims(prev
, cur
);
838 exec
->vtx
.prim_count
--; /* drop the last primitive */
847 static void GLAPIENTRY
850 GET_CURRENT_CONTEXT(ctx
);
851 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
853 if (!_mesa_inside_begin_end(ctx
)) {
854 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnd");
858 ctx
->Exec
= ctx
->OutsideBeginEnd
;
860 if (ctx
->CurrentClientDispatch
== ctx
->MarshalExec
) {
861 ctx
->CurrentServerDispatch
= ctx
->Exec
;
862 } else if (ctx
->CurrentClientDispatch
== ctx
->BeginEnd
) {
863 ctx
->CurrentClientDispatch
= ctx
->Exec
;
864 _glapi_set_dispatch(ctx
->CurrentClientDispatch
);
867 if (exec
->vtx
.prim_count
> 0) {
868 /* close off current primitive */
869 struct _mesa_prim
*last_prim
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
872 last_prim
->count
= exec
->vtx
.vert_count
- last_prim
->start
;
874 /* Special handling for GL_LINE_LOOP */
875 if (last_prim
->mode
== GL_LINE_LOOP
&& last_prim
->begin
== 0) {
876 /* We're finishing drawing a line loop. Append 0th vertex onto
877 * end of vertex buffer so we can draw it as a line strip.
879 const fi_type
*src
= exec
->vtx
.buffer_map
+
880 last_prim
->start
* exec
->vtx
.vertex_size
;
881 fi_type
*dst
= exec
->vtx
.buffer_map
+
882 exec
->vtx
.vert_count
* exec
->vtx
.vertex_size
;
884 /* copy 0th vertex to end of buffer */
885 memcpy(dst
, src
, exec
->vtx
.vertex_size
* sizeof(fi_type
));
887 last_prim
->start
++; /* skip vertex0 */
888 /* note that last_prim->count stays unchanged */
889 last_prim
->mode
= GL_LINE_STRIP
;
891 /* Increment the vertex count so the next primitive doesn't
892 * overwrite the last vertex which we just added.
894 exec
->vtx
.vert_count
++;
895 exec
->vtx
.buffer_ptr
+= exec
->vtx
.vertex_size
;
901 ctx
->Driver
.CurrentExecPrimitive
= PRIM_OUTSIDE_BEGIN_END
;
903 if (exec
->vtx
.prim_count
== VBO_MAX_PRIM
)
904 vbo_exec_vtx_flush(exec
, GL_FALSE
);
906 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
913 * Called via glPrimitiveRestartNV()
915 static void GLAPIENTRY
916 vbo_exec_PrimitiveRestartNV(void)
919 GET_CURRENT_CONTEXT(ctx
);
921 curPrim
= ctx
->Driver
.CurrentExecPrimitive
;
923 if (curPrim
== PRIM_OUTSIDE_BEGIN_END
) {
924 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPrimitiveRestartNV");
928 vbo_exec_Begin(curPrim
);
934 vbo_exec_vtxfmt_init(struct vbo_exec_context
*exec
)
936 struct gl_context
*ctx
= exec
->ctx
;
937 GLvertexformat
*vfmt
= &exec
->vtxfmt
;
939 vfmt
->ArrayElement
= _ae_ArrayElement
;
941 vfmt
->Begin
= vbo_exec_Begin
;
942 vfmt
->End
= vbo_exec_End
;
943 vfmt
->PrimitiveRestartNV
= vbo_exec_PrimitiveRestartNV
;
945 vfmt
->CallList
= _mesa_CallList
;
946 vfmt
->CallLists
= _mesa_CallLists
;
948 vfmt
->EvalCoord1f
= vbo_exec_EvalCoord1f
;
949 vfmt
->EvalCoord1fv
= vbo_exec_EvalCoord1fv
;
950 vfmt
->EvalCoord2f
= vbo_exec_EvalCoord2f
;
951 vfmt
->EvalCoord2fv
= vbo_exec_EvalCoord2fv
;
952 vfmt
->EvalPoint1
= vbo_exec_EvalPoint1
;
953 vfmt
->EvalPoint2
= vbo_exec_EvalPoint2
;
955 /* from attrib_tmp.h:
957 vfmt
->Color3f
= vbo_Color3f
;
958 vfmt
->Color3fv
= vbo_Color3fv
;
959 vfmt
->Color4f
= vbo_Color4f
;
960 vfmt
->Color4fv
= vbo_Color4fv
;
961 vfmt
->FogCoordfEXT
= vbo_FogCoordfEXT
;
962 vfmt
->FogCoordfvEXT
= vbo_FogCoordfvEXT
;
963 vfmt
->MultiTexCoord1fARB
= vbo_MultiTexCoord1f
;
964 vfmt
->MultiTexCoord1fvARB
= vbo_MultiTexCoord1fv
;
965 vfmt
->MultiTexCoord2fARB
= vbo_MultiTexCoord2f
;
966 vfmt
->MultiTexCoord2fvARB
= vbo_MultiTexCoord2fv
;
967 vfmt
->MultiTexCoord3fARB
= vbo_MultiTexCoord3f
;
968 vfmt
->MultiTexCoord3fvARB
= vbo_MultiTexCoord3fv
;
969 vfmt
->MultiTexCoord4fARB
= vbo_MultiTexCoord4f
;
970 vfmt
->MultiTexCoord4fvARB
= vbo_MultiTexCoord4fv
;
971 vfmt
->Normal3f
= vbo_Normal3f
;
972 vfmt
->Normal3fv
= vbo_Normal3fv
;
973 vfmt
->SecondaryColor3fEXT
= vbo_SecondaryColor3fEXT
;
974 vfmt
->SecondaryColor3fvEXT
= vbo_SecondaryColor3fvEXT
;
975 vfmt
->TexCoord1f
= vbo_TexCoord1f
;
976 vfmt
->TexCoord1fv
= vbo_TexCoord1fv
;
977 vfmt
->TexCoord2f
= vbo_TexCoord2f
;
978 vfmt
->TexCoord2fv
= vbo_TexCoord2fv
;
979 vfmt
->TexCoord3f
= vbo_TexCoord3f
;
980 vfmt
->TexCoord3fv
= vbo_TexCoord3fv
;
981 vfmt
->TexCoord4f
= vbo_TexCoord4f
;
982 vfmt
->TexCoord4fv
= vbo_TexCoord4fv
;
983 vfmt
->Vertex2f
= vbo_Vertex2f
;
984 vfmt
->Vertex2fv
= vbo_Vertex2fv
;
985 vfmt
->Vertex3f
= vbo_Vertex3f
;
986 vfmt
->Vertex3fv
= vbo_Vertex3fv
;
987 vfmt
->Vertex4f
= vbo_Vertex4f
;
988 vfmt
->Vertex4fv
= vbo_Vertex4fv
;
990 if (ctx
->API
== API_OPENGLES2
) {
991 vfmt
->VertexAttrib1fARB
= _es_VertexAttrib1f
;
992 vfmt
->VertexAttrib1fvARB
= _es_VertexAttrib1fv
;
993 vfmt
->VertexAttrib2fARB
= _es_VertexAttrib2f
;
994 vfmt
->VertexAttrib2fvARB
= _es_VertexAttrib2fv
;
995 vfmt
->VertexAttrib3fARB
= _es_VertexAttrib3f
;
996 vfmt
->VertexAttrib3fvARB
= _es_VertexAttrib3fv
;
997 vfmt
->VertexAttrib4fARB
= _es_VertexAttrib4f
;
998 vfmt
->VertexAttrib4fvARB
= _es_VertexAttrib4fv
;
1000 vfmt
->VertexAttrib1fARB
= vbo_VertexAttrib1fARB
;
1001 vfmt
->VertexAttrib1fvARB
= vbo_VertexAttrib1fvARB
;
1002 vfmt
->VertexAttrib2fARB
= vbo_VertexAttrib2fARB
;
1003 vfmt
->VertexAttrib2fvARB
= vbo_VertexAttrib2fvARB
;
1004 vfmt
->VertexAttrib3fARB
= vbo_VertexAttrib3fARB
;
1005 vfmt
->VertexAttrib3fvARB
= vbo_VertexAttrib3fvARB
;
1006 vfmt
->VertexAttrib4fARB
= vbo_VertexAttrib4fARB
;
1007 vfmt
->VertexAttrib4fvARB
= vbo_VertexAttrib4fvARB
;
1010 /* Note that VertexAttrib4fNV is used from dlist.c and api_arrayelt.c so
1011 * they can have a single entrypoint for updating any of the legacy
1014 vfmt
->VertexAttrib1fNV
= vbo_VertexAttrib1fNV
;
1015 vfmt
->VertexAttrib1fvNV
= vbo_VertexAttrib1fvNV
;
1016 vfmt
->VertexAttrib2fNV
= vbo_VertexAttrib2fNV
;
1017 vfmt
->VertexAttrib2fvNV
= vbo_VertexAttrib2fvNV
;
1018 vfmt
->VertexAttrib3fNV
= vbo_VertexAttrib3fNV
;
1019 vfmt
->VertexAttrib3fvNV
= vbo_VertexAttrib3fvNV
;
1020 vfmt
->VertexAttrib4fNV
= vbo_VertexAttrib4fNV
;
1021 vfmt
->VertexAttrib4fvNV
= vbo_VertexAttrib4fvNV
;
1023 /* integer-valued */
1024 vfmt
->VertexAttribI1i
= vbo_VertexAttribI1i
;
1025 vfmt
->VertexAttribI2i
= vbo_VertexAttribI2i
;
1026 vfmt
->VertexAttribI3i
= vbo_VertexAttribI3i
;
1027 vfmt
->VertexAttribI4i
= vbo_VertexAttribI4i
;
1028 vfmt
->VertexAttribI2iv
= vbo_VertexAttribI2iv
;
1029 vfmt
->VertexAttribI3iv
= vbo_VertexAttribI3iv
;
1030 vfmt
->VertexAttribI4iv
= vbo_VertexAttribI4iv
;
1032 /* unsigned integer-valued */
1033 vfmt
->VertexAttribI1ui
= vbo_VertexAttribI1ui
;
1034 vfmt
->VertexAttribI2ui
= vbo_VertexAttribI2ui
;
1035 vfmt
->VertexAttribI3ui
= vbo_VertexAttribI3ui
;
1036 vfmt
->VertexAttribI4ui
= vbo_VertexAttribI4ui
;
1037 vfmt
->VertexAttribI2uiv
= vbo_VertexAttribI2uiv
;
1038 vfmt
->VertexAttribI3uiv
= vbo_VertexAttribI3uiv
;
1039 vfmt
->VertexAttribI4uiv
= vbo_VertexAttribI4uiv
;
1041 vfmt
->Materialfv
= vbo_Materialfv
;
1043 vfmt
->EdgeFlag
= vbo_EdgeFlag
;
1044 vfmt
->Indexf
= vbo_Indexf
;
1045 vfmt
->Indexfv
= vbo_Indexfv
;
1047 /* ARB_vertex_type_2_10_10_10_rev */
1048 vfmt
->VertexP2ui
= vbo_VertexP2ui
;
1049 vfmt
->VertexP2uiv
= vbo_VertexP2uiv
;
1050 vfmt
->VertexP3ui
= vbo_VertexP3ui
;
1051 vfmt
->VertexP3uiv
= vbo_VertexP3uiv
;
1052 vfmt
->VertexP4ui
= vbo_VertexP4ui
;
1053 vfmt
->VertexP4uiv
= vbo_VertexP4uiv
;
1055 vfmt
->TexCoordP1ui
= vbo_TexCoordP1ui
;
1056 vfmt
->TexCoordP1uiv
= vbo_TexCoordP1uiv
;
1057 vfmt
->TexCoordP2ui
= vbo_TexCoordP2ui
;
1058 vfmt
->TexCoordP2uiv
= vbo_TexCoordP2uiv
;
1059 vfmt
->TexCoordP3ui
= vbo_TexCoordP3ui
;
1060 vfmt
->TexCoordP3uiv
= vbo_TexCoordP3uiv
;
1061 vfmt
->TexCoordP4ui
= vbo_TexCoordP4ui
;
1062 vfmt
->TexCoordP4uiv
= vbo_TexCoordP4uiv
;
1064 vfmt
->MultiTexCoordP1ui
= vbo_MultiTexCoordP1ui
;
1065 vfmt
->MultiTexCoordP1uiv
= vbo_MultiTexCoordP1uiv
;
1066 vfmt
->MultiTexCoordP2ui
= vbo_MultiTexCoordP2ui
;
1067 vfmt
->MultiTexCoordP2uiv
= vbo_MultiTexCoordP2uiv
;
1068 vfmt
->MultiTexCoordP3ui
= vbo_MultiTexCoordP3ui
;
1069 vfmt
->MultiTexCoordP3uiv
= vbo_MultiTexCoordP3uiv
;
1070 vfmt
->MultiTexCoordP4ui
= vbo_MultiTexCoordP4ui
;
1071 vfmt
->MultiTexCoordP4uiv
= vbo_MultiTexCoordP4uiv
;
1073 vfmt
->NormalP3ui
= vbo_NormalP3ui
;
1074 vfmt
->NormalP3uiv
= vbo_NormalP3uiv
;
1076 vfmt
->ColorP3ui
= vbo_ColorP3ui
;
1077 vfmt
->ColorP3uiv
= vbo_ColorP3uiv
;
1078 vfmt
->ColorP4ui
= vbo_ColorP4ui
;
1079 vfmt
->ColorP4uiv
= vbo_ColorP4uiv
;
1081 vfmt
->SecondaryColorP3ui
= vbo_SecondaryColorP3ui
;
1082 vfmt
->SecondaryColorP3uiv
= vbo_SecondaryColorP3uiv
;
1084 vfmt
->VertexAttribP1ui
= vbo_VertexAttribP1ui
;
1085 vfmt
->VertexAttribP1uiv
= vbo_VertexAttribP1uiv
;
1086 vfmt
->VertexAttribP2ui
= vbo_VertexAttribP2ui
;
1087 vfmt
->VertexAttribP2uiv
= vbo_VertexAttribP2uiv
;
1088 vfmt
->VertexAttribP3ui
= vbo_VertexAttribP3ui
;
1089 vfmt
->VertexAttribP3uiv
= vbo_VertexAttribP3uiv
;
1090 vfmt
->VertexAttribP4ui
= vbo_VertexAttribP4ui
;
1091 vfmt
->VertexAttribP4uiv
= vbo_VertexAttribP4uiv
;
1093 vfmt
->VertexAttribL1d
= vbo_VertexAttribL1d
;
1094 vfmt
->VertexAttribL2d
= vbo_VertexAttribL2d
;
1095 vfmt
->VertexAttribL3d
= vbo_VertexAttribL3d
;
1096 vfmt
->VertexAttribL4d
= vbo_VertexAttribL4d
;
1098 vfmt
->VertexAttribL1dv
= vbo_VertexAttribL1dv
;
1099 vfmt
->VertexAttribL2dv
= vbo_VertexAttribL2dv
;
1100 vfmt
->VertexAttribL3dv
= vbo_VertexAttribL3dv
;
1101 vfmt
->VertexAttribL4dv
= vbo_VertexAttribL4dv
;
1103 vfmt
->VertexAttribL1ui64ARB
= vbo_VertexAttribL1ui64ARB
;
1104 vfmt
->VertexAttribL1ui64vARB
= vbo_VertexAttribL1ui64vARB
;
1109 * Tell the VBO module to use a real OpenGL vertex buffer object to
1110 * store accumulated immediate-mode vertex data.
1111 * This replaces the malloced buffer which was created in
1112 * vb_exec_vtx_init() below.
1115 vbo_use_buffer_objects(struct gl_context
*ctx
)
1117 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
1118 /* Any buffer name but 0 can be used here since this bufferobj won't
1119 * go into the bufferobj hashtable.
1121 GLuint bufName
= IMM_BUFFER_NAME
;
1122 GLenum target
= GL_ARRAY_BUFFER_ARB
;
1123 GLenum usage
= GL_STREAM_DRAW_ARB
;
1124 GLsizei size
= VBO_VERT_BUFFER_SIZE
;
1126 /* Make sure this func is only used once */
1127 assert(exec
->vtx
.bufferobj
== ctx
->Shared
->NullBufferObj
);
1129 _mesa_align_free(exec
->vtx
.buffer_map
);
1130 exec
->vtx
.buffer_map
= NULL
;
1131 exec
->vtx
.buffer_ptr
= NULL
;
1133 /* Allocate a real buffer object now */
1134 _mesa_reference_buffer_object(ctx
, &exec
->vtx
.bufferobj
, NULL
);
1135 exec
->vtx
.bufferobj
= ctx
->Driver
.NewBufferObject(ctx
, bufName
);
1136 if (!ctx
->Driver
.BufferData(ctx
, target
, size
, NULL
, usage
,
1138 GL_DYNAMIC_STORAGE_BIT
|
1139 GL_CLIENT_STORAGE_BIT
,
1140 exec
->vtx
.bufferobj
)) {
1141 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "VBO allocation");
1147 * If this function is called, all VBO buffers will be unmapped when
1149 * Otherwise, if a simple command like glColor3f() is called and we flush,
1150 * the current VBO may be left mapped.
1153 vbo_always_unmap_buffers(struct gl_context
*ctx
)
1155 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
1156 exec
->begin_vertices_flags
|= FLUSH_STORED_VERTICES
;
1161 vbo_exec_vtx_init(struct vbo_exec_context
*exec
)
1163 struct gl_context
*ctx
= exec
->ctx
;
1166 /* Allocate a buffer object. Will just reuse this object
1167 * continuously, unless vbo_use_buffer_objects() is called to enable
1170 _mesa_reference_buffer_object(ctx
,
1171 &exec
->vtx
.bufferobj
,
1172 ctx
->Shared
->NullBufferObj
);
1174 assert(!exec
->vtx
.buffer_map
);
1175 exec
->vtx
.buffer_map
= _mesa_align_malloc(VBO_VERT_BUFFER_SIZE
, 64);
1176 exec
->vtx
.buffer_ptr
= exec
->vtx
.buffer_map
;
1178 vbo_exec_vtxfmt_init(exec
);
1179 _mesa_noop_vtxfmt_init(&exec
->vtxfmt_noop
);
1181 exec
->vtx
.enabled
= 0;
1182 for (i
= 0 ; i
< VBO_ATTRIB_MAX
; i
++) {
1183 assert(i
< ARRAY_SIZE(exec
->vtx
.attrsz
));
1184 exec
->vtx
.attrsz
[i
] = 0;
1185 assert(i
< ARRAY_SIZE(exec
->vtx
.attrtype
));
1186 exec
->vtx
.attrtype
[i
] = GL_FLOAT
;
1187 assert(i
< ARRAY_SIZE(exec
->vtx
.active_sz
));
1188 exec
->vtx
.active_sz
[i
] = 0;
1191 exec
->vtx
.vertex_size
= 0;
1193 exec
->begin_vertices_flags
= FLUSH_UPDATE_CURRENT
;
1198 vbo_exec_vtx_destroy(struct vbo_exec_context
*exec
)
1200 /* using a real VBO for vertex data */
1201 struct gl_context
*ctx
= exec
->ctx
;
1203 /* True VBOs should already be unmapped
1205 if (exec
->vtx
.buffer_map
) {
1206 assert(exec
->vtx
.bufferobj
->Name
== 0 ||
1207 exec
->vtx
.bufferobj
->Name
== IMM_BUFFER_NAME
);
1208 if (exec
->vtx
.bufferobj
->Name
== 0) {
1209 _mesa_align_free(exec
->vtx
.buffer_map
);
1210 exec
->vtx
.buffer_map
= NULL
;
1211 exec
->vtx
.buffer_ptr
= NULL
;
1215 /* Free the vertex buffer. Unmap first if needed.
1217 if (_mesa_bufferobj_mapped(exec
->vtx
.bufferobj
, MAP_INTERNAL
)) {
1218 ctx
->Driver
.UnmapBuffer(ctx
, exec
->vtx
.bufferobj
, MAP_INTERNAL
);
1220 _mesa_reference_buffer_object(ctx
, &exec
->vtx
.bufferobj
, NULL
);
1225 * If inside glBegin()/glEnd(), it should assert(0). Otherwise, if
1226 * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered
1227 * vertices, if FLUSH_UPDATE_CURRENT bit is set updates
1228 * __struct gl_contextRec::Current and gl_light_attrib::Material
1230 * Note that the default T&L engine never clears the
1231 * FLUSH_UPDATE_CURRENT bit, even after performing the update.
1233 * \param flags bitmask of FLUSH_STORED_VERTICES, FLUSH_UPDATE_CURRENT
1236 vbo_exec_FlushVertices(struct gl_context
*ctx
, GLuint flags
)
1238 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
1241 /* debug check: make sure we don't get called recursively */
1242 exec
->flush_call_depth
++;
1243 assert(exec
->flush_call_depth
== 1);
1246 if (_mesa_inside_begin_end(ctx
)) {
1247 /* We've had glBegin but not glEnd! */
1249 exec
->flush_call_depth
--;
1250 assert(exec
->flush_call_depth
== 0);
1255 /* Flush (draw), and make sure VBO is left unmapped when done */
1256 vbo_exec_FlushVertices_internal(exec
, GL_TRUE
);
1258 /* Need to do this to ensure vbo_exec_begin_vertices gets called again:
1260 ctx
->Driver
.NeedFlush
&= ~(FLUSH_UPDATE_CURRENT
| flags
);
1263 exec
->flush_call_depth
--;
1264 assert(exec
->flush_call_depth
== 0);
1270 * Reset the vertex attribute by setting its size to zero.
1273 vbo_reset_attr(struct vbo_exec_context
*exec
, GLuint attr
)
1275 exec
->vtx
.attrsz
[attr
] = 0;
1276 exec
->vtx
.attrtype
[attr
] = GL_FLOAT
;
1277 exec
->vtx
.active_sz
[attr
] = 0;
1282 vbo_reset_all_attr(struct vbo_exec_context
*exec
)
1284 while (exec
->vtx
.enabled
) {
1285 const int i
= u_bit_scan64(&exec
->vtx
.enabled
);
1286 vbo_reset_attr(exec
, i
);
1289 exec
->vtx
.vertex_size
= 0;
1294 _es_Color4f(GLfloat r
, GLfloat g
, GLfloat b
, GLfloat a
)
1296 vbo_Color4f(r
, g
, b
, a
);
1301 _es_Normal3f(GLfloat x
, GLfloat y
, GLfloat z
)
1303 vbo_Normal3f(x
, y
, z
);
1308 _es_MultiTexCoord4f(GLenum target
, GLfloat s
, GLfloat t
, GLfloat r
, GLfloat q
)
1310 vbo_MultiTexCoord4f(target
, s
, t
, r
, q
);
1315 _es_Materialfv(GLenum face
, GLenum pname
, const GLfloat
*params
)
1317 vbo_Materialfv(face
, pname
, params
);
1322 _es_Materialf(GLenum face
, GLenum pname
, GLfloat param
)
1326 p
[1] = p
[2] = p
[3] = 0.0F
;
1327 vbo_Materialfv(face
, pname
, p
);
1332 * A special version of glVertexAttrib4f that does not treat index 0 as
1336 VertexAttrib4f_nopos(GLuint index
, GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
)
1338 GET_CURRENT_CONTEXT(ctx
);
1339 if (index
< MAX_VERTEX_GENERIC_ATTRIBS
)
1340 ATTRF(VBO_ATTRIB_GENERIC0
+ index
, 4, x
, y
, z
, w
);
1342 ERROR(GL_INVALID_VALUE
);
1346 _es_VertexAttrib4f(GLuint index
, GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
)
1348 VertexAttrib4f_nopos(index
, x
, y
, z
, w
);
1353 _es_VertexAttrib1f(GLuint indx
, GLfloat x
)
1355 VertexAttrib4f_nopos(indx
, x
, 0.0f
, 0.0f
, 1.0f
);
1360 _es_VertexAttrib1fv(GLuint indx
, const GLfloat
* values
)
1362 VertexAttrib4f_nopos(indx
, values
[0], 0.0f
, 0.0f
, 1.0f
);
1367 _es_VertexAttrib2f(GLuint indx
, GLfloat x
, GLfloat y
)
1369 VertexAttrib4f_nopos(indx
, x
, y
, 0.0f
, 1.0f
);
1374 _es_VertexAttrib2fv(GLuint indx
, const GLfloat
* values
)
1376 VertexAttrib4f_nopos(indx
, values
[0], values
[1], 0.0f
, 1.0f
);
1381 _es_VertexAttrib3f(GLuint indx
, GLfloat x
, GLfloat y
, GLfloat z
)
1383 VertexAttrib4f_nopos(indx
, x
, y
, z
, 1.0f
);
1388 _es_VertexAttrib3fv(GLuint indx
, const GLfloat
* values
)
1390 VertexAttrib4f_nopos(indx
, values
[0], values
[1], values
[2], 1.0f
);
1395 _es_VertexAttrib4fv(GLuint indx
, const GLfloat
* values
)
1397 VertexAttrib4f_nopos(indx
, values
[0], values
[1], values
[2], values
[3]);