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
);
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
.attr
[i
].type
== GL_DOUBLE
||
182 exec
->vtx
.attr
[i
].type
== GL_UNSIGNED_INT64_ARB
)
185 assert(exec
->vtx
.attr
[i
].size
);
187 if (exec
->vtx
.attr
[i
].type
== GL_DOUBLE
||
188 exec
->vtx
.attr
[i
].type
== GL_UNSIGNED_INT64_ARB
) {
189 memset(tmp
, 0, sizeof(tmp
));
190 memcpy(tmp
, exec
->vtx
.attrptr
[i
], exec
->vtx
.attr
[i
].size
* sizeof(GLfloat
));
192 COPY_CLEAN_4V_TYPE_AS_UNION(tmp
,
193 exec
->vtx
.attr
[i
].size
,
194 exec
->vtx
.attrptr
[i
],
195 exec
->vtx
.attr
[i
].type
);
198 if (exec
->vtx
.attr
[i
].type
!= 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
.attr
[i
].size
/ dmul
,
210 exec
->vtx
.attr
[i
].type
);
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
.attr
[VBO_ATTRIB_COLOR0
].size
) {
227 _mesa_update_color_material(ctx
,
228 ctx
->Current
.Attrib
[VBO_ATTRIB_COLOR0
]);
234 * Flush existing data, set new attrib size, replay copied vertices.
235 * This is called when we transition from a small vertex attribute size
236 * to a larger one. Ex: glTexCoord2f -> glTexCoord4f.
237 * We need to go back over the previous 2-component texcoords and insert
238 * zero and one values.
239 * \param attr VBO_ATTRIB_x vertex attribute value
242 vbo_exec_wrap_upgrade_vertex(struct vbo_exec_context
*exec
,
243 GLuint attr
, GLuint newSize
)
245 struct gl_context
*ctx
= exec
->ctx
;
246 struct vbo_context
*vbo
= vbo_context(ctx
);
247 const GLint lastcount
= exec
->vtx
.vert_count
;
248 fi_type
*old_attrptr
[VBO_ATTRIB_MAX
];
249 const GLuint old_vtx_size_no_pos
= exec
->vtx
.vertex_size_no_pos
;
250 const GLuint old_vtx_size
= exec
->vtx
.vertex_size
; /* floats per vertex */
251 const GLuint oldSize
= exec
->vtx
.attr
[attr
].size
;
254 assert(attr
< VBO_ATTRIB_MAX
);
256 /* Run pipeline on current vertices, copy wrapped vertices
257 * to exec->vtx.copied.
259 vbo_exec_wrap_buffers(exec
);
261 if (unlikely(exec
->vtx
.copied
.nr
)) {
262 /* We're in the middle of a primitive, keep the old vertex
263 * format around to be able to translate the copied vertices to
266 memcpy(old_attrptr
, exec
->vtx
.attrptr
, sizeof(old_attrptr
));
269 /* Heuristic: Attempt to isolate attributes received outside
270 * begin/end so that they don't bloat the vertices.
272 if (!_mesa_inside_begin_end(ctx
) &&
273 !oldSize
&& lastcount
> 8 && exec
->vtx
.vertex_size
) {
274 vbo_exec_copy_to_current(exec
);
275 vbo_reset_all_attr(exec
);
280 exec
->vtx
.attr
[attr
].size
= newSize
;
281 exec
->vtx
.vertex_size
+= newSize
- oldSize
;
282 exec
->vtx
.vertex_size_no_pos
= exec
->vtx
.vertex_size
- exec
->vtx
.attr
[0].size
;
283 exec
->vtx
.max_vert
= vbo_compute_max_verts(exec
);
284 exec
->vtx
.vert_count
= 0;
285 exec
->vtx
.buffer_ptr
= exec
->vtx
.buffer_map
;
286 exec
->vtx
.enabled
|= BITFIELD64_BIT(attr
);
289 if (unlikely(oldSize
)) {
290 unsigned offset
= exec
->vtx
.attrptr
[attr
] - exec
->vtx
.vertex
;
292 /* If there are attribs after the resized attrib... */
293 if (offset
+ oldSize
< old_vtx_size_no_pos
) {
294 int size_diff
= newSize
- oldSize
;
295 fi_type
*old_first
= exec
->vtx
.attrptr
[attr
] + oldSize
;
296 fi_type
*new_first
= exec
->vtx
.attrptr
[attr
] + newSize
;
297 fi_type
*old_last
= exec
->vtx
.vertex
+ old_vtx_size_no_pos
- 1;
298 fi_type
*new_last
= exec
->vtx
.vertex
+ exec
->vtx
.vertex_size_no_pos
- 1;
301 /* Decreasing the size: Copy from first to last to move
302 * elements to the left.
304 fi_type
*old_end
= old_last
+ 1;
305 fi_type
*old
= old_first
;
306 fi_type
*new = new_first
;
310 } while (old
!= old_end
);
312 /* Increasing the size: Copy from last to first to move
313 * elements to the right.
315 fi_type
*old_end
= old_first
- 1;
316 fi_type
*old
= old_last
;
317 fi_type
*new = new_last
;
321 } while (old
!= old_end
);
324 /* Update pointers to attribs, because we moved them. */
325 GLbitfield64 enabled
= exec
->vtx
.enabled
&
326 ~BITFIELD64_BIT(VBO_ATTRIB_POS
) &
327 ~BITFIELD64_BIT(attr
);
329 unsigned i
= u_bit_scan64(&enabled
);
331 if (exec
->vtx
.attrptr
[i
] > exec
->vtx
.attrptr
[attr
])
332 exec
->vtx
.attrptr
[i
] += size_diff
;
336 /* Just have to append the new attribute at the end */
337 exec
->vtx
.attrptr
[attr
] = exec
->vtx
.vertex
+
338 exec
->vtx
.vertex_size_no_pos
- newSize
;
342 /* The position is always last. */
343 exec
->vtx
.attrptr
[0] = exec
->vtx
.vertex
+ exec
->vtx
.vertex_size_no_pos
;
345 /* Replay stored vertices to translate them
346 * to new format here.
348 * -- No need to replay - just copy piecewise
350 if (unlikely(exec
->vtx
.copied
.nr
)) {
351 fi_type
*data
= exec
->vtx
.copied
.buffer
;
352 fi_type
*dest
= exec
->vtx
.buffer_ptr
;
354 assert(exec
->vtx
.buffer_ptr
== exec
->vtx
.buffer_map
);
356 for (i
= 0 ; i
< exec
->vtx
.copied
.nr
; i
++) {
357 GLbitfield64 enabled
= exec
->vtx
.enabled
;
359 const int j
= u_bit_scan64(&enabled
);
360 GLuint sz
= exec
->vtx
.attr
[j
].size
;
361 GLint old_offset
= old_attrptr
[j
] - exec
->vtx
.vertex
;
362 GLint new_offset
= exec
->vtx
.attrptr
[j
] - exec
->vtx
.vertex
;
369 COPY_CLEAN_4V_TYPE_AS_UNION(tmp
, oldSize
,
371 exec
->vtx
.attr
[j
].type
);
372 COPY_SZ_4V(dest
+ new_offset
, newSize
, tmp
);
374 fi_type
*current
= (fi_type
*)vbo
->current
[j
].Ptr
;
375 COPY_SZ_4V(dest
+ new_offset
, sz
, current
);
379 COPY_SZ_4V(dest
+ new_offset
, sz
, data
+ old_offset
);
383 data
+= old_vtx_size
;
384 dest
+= exec
->vtx
.vertex_size
;
387 exec
->vtx
.buffer_ptr
= dest
;
388 exec
->vtx
.vert_count
+= exec
->vtx
.copied
.nr
;
389 exec
->vtx
.copied
.nr
= 0;
395 * This is when a vertex attribute transitions to a different size.
396 * For example, we saw a bunch of glTexCoord2f() calls and now we got a
397 * glTexCoord4f() call. We promote the array from size=2 to size=4.
398 * \param newSize size of new vertex (number of 32-bit words).
399 * \param attr VBO_ATTRIB_x vertex attribute value
402 vbo_exec_fixup_vertex(struct gl_context
*ctx
, GLuint attr
,
403 GLuint newSize
, GLenum newType
)
405 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
407 assert(attr
< VBO_ATTRIB_MAX
);
409 if (newSize
> exec
->vtx
.attr
[attr
].size
||
410 newType
!= exec
->vtx
.attr
[attr
].type
) {
411 /* New size is larger. Need to flush existing vertices and get
412 * an enlarged vertex format.
414 vbo_exec_wrap_upgrade_vertex(exec
, attr
, newSize
);
416 else if (newSize
< exec
->vtx
.attr
[attr
].active_size
) {
419 vbo_get_default_vals_as_union(exec
->vtx
.attr
[attr
].type
);
421 /* New size is smaller - just need to fill in some
422 * zeros. Don't need to flush or wrap.
424 for (i
= newSize
; i
<= exec
->vtx
.attr
[attr
].size
; i
++)
425 exec
->vtx
.attrptr
[attr
][i
-1] = id
[i
-1];
428 exec
->vtx
.attr
[attr
].active_size
= newSize
;
429 exec
->vtx
.attr
[attr
].type
= newType
;
434 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
435 * It depends on a few things, including whether we're inside or outside
439 is_vertex_position(const struct gl_context
*ctx
, GLuint index
)
441 return (index
== 0 &&
442 _mesa_attr_zero_aliases_vertex(ctx
) &&
443 _mesa_inside_begin_end(ctx
));
446 /* Write a 64-bit value into a 32-bit pointer by preserving endianness. */
447 #if UTIL_ARCH_LITTLE_ENDIAN
448 #define SET_64BIT(dst32, u64) do { \
449 *(dst32)++ = (u64); \
450 *(dst32)++ = (uint64_t)(u64) >> 32; \
453 #define SET_64BIT(dst32, u64) do { \
454 *(dst32)++ = (uint64_t)(u64) >> 32; \
455 *(dst32)++ = (u64); \
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 (uint32_t or uint64_t)
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.attr[A].active_size != N * sz || \
478 exec->vtx.attr[A].type != T)) { \
479 vbo_exec_fixup_vertex(ctx, A, N * sz, T); \
482 /* store a copy of the attribute in exec except for glVertex */ \
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.attr[A].type == T); \
491 /* we now have accumulated a per-vertex attribute */ \
492 ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT; \
494 /* This is a glVertex call */ \
495 uint32_t *dst = (uint32_t *)exec->vtx.buffer_ptr; \
496 uint32_t *src = (uint32_t *)exec->vtx.vertex; \
497 unsigned vertex_size_no_pos = exec->vtx.vertex_size_no_pos; \
499 /* Copy over attributes from exec. */ \
500 for (unsigned i = 0; i < vertex_size_no_pos; i++) \
503 /* Store the position, which is always last and can have 32 or */ \
504 /* 64 bits per channel. */ \
505 if (sizeof(C) == 4) { \
506 if (N > 0) *dst++ = V0; \
507 if (N > 1) *dst++ = V1; \
508 if (N > 2) *dst++ = V2; \
509 if (N > 3) *dst++ = V3; \
511 /* 64 bits: dst can be unaligned, so copy each 4-byte word */ \
513 if (N > 0) SET_64BIT(dst, V0); \
514 if (N > 1) SET_64BIT(dst, V1); \
515 if (N > 2) SET_64BIT(dst, V2); \
516 if (N > 3) SET_64BIT(dst, V3); \
519 /* dst now points at the beginning of the next vertex */ \
520 exec->vtx.buffer_ptr = (fi_type*)dst; \
522 /* Don't set FLUSH_UPDATE_CURRENT because */ \
523 /* Current.Attrib[VBO_ATTRIB_POS] is never used. */ \
525 if (unlikely(++exec->vtx.vert_count >= exec->vtx.max_vert)) \
526 vbo_exec_vtx_wrap(exec); \
532 #define ERROR(err) _mesa_error(ctx, err, __func__)
533 #define TAG(x) vbo_exec_##x
535 #include "vbo_attrib_tmp.h"
540 * Execute a glMaterial call. Note that if GL_COLOR_MATERIAL is enabled,
541 * this may be a (partial) no-op.
543 static void GLAPIENTRY
544 vbo_exec_Materialfv(GLenum face
, GLenum pname
, const GLfloat
*params
)
546 GLbitfield updateMats
;
547 GET_CURRENT_CONTEXT(ctx
);
549 /* This function should be a no-op when it tries to update material
550 * attributes which are currently tracking glColor via glColorMaterial.
551 * The updateMats var will be a mask of the MAT_BIT_FRONT/BACK_x bits
552 * indicating which material attributes can actually be updated below.
554 if (ctx
->Light
.ColorMaterialEnabled
) {
555 updateMats
= ~ctx
->Light
._ColorMaterialBitmask
;
558 /* GL_COLOR_MATERIAL is disabled so don't skip any material updates */
559 updateMats
= ALL_MATERIAL_BITS
;
562 if (ctx
->API
== API_OPENGL_COMPAT
&& face
== GL_FRONT
) {
563 updateMats
&= FRONT_MATERIAL_BITS
;
565 else if (ctx
->API
== API_OPENGL_COMPAT
&& face
== GL_BACK
) {
566 updateMats
&= BACK_MATERIAL_BITS
;
568 else if (face
!= GL_FRONT_AND_BACK
) {
569 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterial(invalid face)");
575 if (updateMats
& MAT_BIT_FRONT_EMISSION
)
576 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_EMISSION
, 4, params
);
577 if (updateMats
& MAT_BIT_BACK_EMISSION
)
578 MAT_ATTR(VBO_ATTRIB_MAT_BACK_EMISSION
, 4, params
);
581 if (updateMats
& MAT_BIT_FRONT_AMBIENT
)
582 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_AMBIENT
, 4, params
);
583 if (updateMats
& MAT_BIT_BACK_AMBIENT
)
584 MAT_ATTR(VBO_ATTRIB_MAT_BACK_AMBIENT
, 4, params
);
587 if (updateMats
& MAT_BIT_FRONT_DIFFUSE
)
588 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_DIFFUSE
, 4, params
);
589 if (updateMats
& MAT_BIT_BACK_DIFFUSE
)
590 MAT_ATTR(VBO_ATTRIB_MAT_BACK_DIFFUSE
, 4, params
);
593 if (updateMats
& MAT_BIT_FRONT_SPECULAR
)
594 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_SPECULAR
, 4, params
);
595 if (updateMats
& MAT_BIT_BACK_SPECULAR
)
596 MAT_ATTR(VBO_ATTRIB_MAT_BACK_SPECULAR
, 4, params
);
599 if (*params
< 0 || *params
> ctx
->Const
.MaxShininess
) {
600 _mesa_error(ctx
, GL_INVALID_VALUE
,
601 "glMaterial(invalid shininess: %f out range [0, %f])",
602 *params
, ctx
->Const
.MaxShininess
);
605 if (updateMats
& MAT_BIT_FRONT_SHININESS
)
606 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_SHININESS
, 1, params
);
607 if (updateMats
& MAT_BIT_BACK_SHININESS
)
608 MAT_ATTR(VBO_ATTRIB_MAT_BACK_SHININESS
, 1, params
);
610 case GL_COLOR_INDEXES
:
611 if (ctx
->API
!= API_OPENGL_COMPAT
) {
612 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterialfv(pname)");
615 if (updateMats
& MAT_BIT_FRONT_INDEXES
)
616 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_INDEXES
, 3, params
);
617 if (updateMats
& MAT_BIT_BACK_INDEXES
)
618 MAT_ATTR(VBO_ATTRIB_MAT_BACK_INDEXES
, 3, params
);
620 case GL_AMBIENT_AND_DIFFUSE
:
621 if (updateMats
& MAT_BIT_FRONT_AMBIENT
)
622 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_AMBIENT
, 4, params
);
623 if (updateMats
& MAT_BIT_FRONT_DIFFUSE
)
624 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_DIFFUSE
, 4, params
);
625 if (updateMats
& MAT_BIT_BACK_AMBIENT
)
626 MAT_ATTR(VBO_ATTRIB_MAT_BACK_AMBIENT
, 4, params
);
627 if (updateMats
& MAT_BIT_BACK_DIFFUSE
)
628 MAT_ATTR(VBO_ATTRIB_MAT_BACK_DIFFUSE
, 4, params
);
631 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterialfv(pname)");
638 * Flush (draw) vertices.
640 * \param flags bitmask of FLUSH_STORED_VERTICES, FLUSH_UPDATE_CURRENT
643 vbo_exec_FlushVertices_internal(struct vbo_exec_context
*exec
, unsigned flags
)
645 struct gl_context
*ctx
= exec
->ctx
;
647 if (flags
& FLUSH_STORED_VERTICES
) {
648 if (exec
->vtx
.vert_count
) {
649 vbo_exec_vtx_flush(exec
);
652 if (exec
->vtx
.vertex_size
) {
653 vbo_exec_copy_to_current(exec
);
654 vbo_reset_all_attr(exec
);
658 ctx
->Driver
.NeedFlush
= 0;
660 assert(flags
== FLUSH_UPDATE_CURRENT
);
662 /* Note that the vertex size is unchanged.
663 * (vbo_reset_all_attr isn't called)
665 vbo_exec_copy_to_current(exec
);
667 /* Only FLUSH_UPDATE_CURRENT is done. */
668 ctx
->Driver
.NeedFlush
= ~FLUSH_UPDATE_CURRENT
;
673 static void GLAPIENTRY
674 vbo_exec_EvalCoord1f(GLfloat u
)
676 GET_CURRENT_CONTEXT(ctx
);
677 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
681 if (exec
->eval
.recalculate_maps
)
682 vbo_exec_eval_update(exec
);
684 for (i
= 0; i
<= VBO_ATTRIB_TEX7
; i
++) {
685 if (exec
->eval
.map1
[i
].map
)
686 if (exec
->vtx
.attr
[i
].active_size
!= exec
->eval
.map1
[i
].sz
)
687 vbo_exec_fixup_vertex(ctx
, i
, exec
->eval
.map1
[i
].sz
, GL_FLOAT
);
691 memcpy(exec
->vtx
.copied
.buffer
, exec
->vtx
.vertex
,
692 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
694 vbo_exec_do_EvalCoord1f(exec
, u
);
696 memcpy(exec
->vtx
.vertex
, exec
->vtx
.copied
.buffer
,
697 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
701 static void GLAPIENTRY
702 vbo_exec_EvalCoord2f(GLfloat u
, GLfloat v
)
704 GET_CURRENT_CONTEXT(ctx
);
705 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
709 if (exec
->eval
.recalculate_maps
)
710 vbo_exec_eval_update(exec
);
712 for (i
= 0; i
<= VBO_ATTRIB_TEX7
; i
++) {
713 if (exec
->eval
.map2
[i
].map
)
714 if (exec
->vtx
.attr
[i
].active_size
!= exec
->eval
.map2
[i
].sz
)
715 vbo_exec_fixup_vertex(ctx
, i
, exec
->eval
.map2
[i
].sz
, GL_FLOAT
);
718 if (ctx
->Eval
.AutoNormal
)
719 if (exec
->vtx
.attr
[VBO_ATTRIB_NORMAL
].active_size
!= 3)
720 vbo_exec_fixup_vertex(ctx
, VBO_ATTRIB_NORMAL
, 3, GL_FLOAT
);
723 memcpy(exec
->vtx
.copied
.buffer
, exec
->vtx
.vertex
,
724 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
726 vbo_exec_do_EvalCoord2f(exec
, u
, v
);
728 memcpy(exec
->vtx
.vertex
, exec
->vtx
.copied
.buffer
,
729 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
733 static void GLAPIENTRY
734 vbo_exec_EvalCoord1fv(const GLfloat
*u
)
736 vbo_exec_EvalCoord1f(u
[0]);
740 static void GLAPIENTRY
741 vbo_exec_EvalCoord2fv(const GLfloat
*u
)
743 vbo_exec_EvalCoord2f(u
[0], u
[1]);
747 static void GLAPIENTRY
748 vbo_exec_EvalPoint1(GLint i
)
750 GET_CURRENT_CONTEXT(ctx
);
751 GLfloat du
= ((ctx
->Eval
.MapGrid1u2
- ctx
->Eval
.MapGrid1u1
) /
752 (GLfloat
) ctx
->Eval
.MapGrid1un
);
753 GLfloat u
= i
* du
+ ctx
->Eval
.MapGrid1u1
;
755 vbo_exec_EvalCoord1f(u
);
759 static void GLAPIENTRY
760 vbo_exec_EvalPoint2(GLint i
, GLint j
)
762 GET_CURRENT_CONTEXT(ctx
);
763 GLfloat du
= ((ctx
->Eval
.MapGrid2u2
- ctx
->Eval
.MapGrid2u1
) /
764 (GLfloat
) ctx
->Eval
.MapGrid2un
);
765 GLfloat dv
= ((ctx
->Eval
.MapGrid2v2
- ctx
->Eval
.MapGrid2v1
) /
766 (GLfloat
) ctx
->Eval
.MapGrid2vn
);
767 GLfloat u
= i
* du
+ ctx
->Eval
.MapGrid2u1
;
768 GLfloat v
= j
* dv
+ ctx
->Eval
.MapGrid2v1
;
770 vbo_exec_EvalCoord2f(u
, v
);
775 * Called via glBegin.
777 static void GLAPIENTRY
778 vbo_exec_Begin(GLenum mode
)
780 GET_CURRENT_CONTEXT(ctx
);
781 struct vbo_context
*vbo
= vbo_context(ctx
);
782 struct vbo_exec_context
*exec
= &vbo
->exec
;
785 if (_mesa_inside_begin_end(ctx
)) {
786 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBegin");
790 if (!_mesa_valid_prim_mode(ctx
, mode
, "glBegin")) {
794 if (!_mesa_valid_to_render(ctx
, "glBegin")) {
798 /* Heuristic: attempt to isolate attributes occurring outside
801 * Use FLUSH_STORED_VERTICES, because it updates current attribs and
802 * sets vertex_size to 0. (FLUSH_UPDATE_CURRENT doesn't change vertex_size)
804 if (exec
->vtx
.vertex_size
&& !exec
->vtx
.attr
[VBO_ATTRIB_POS
].size
)
805 vbo_exec_FlushVertices_internal(exec
, FLUSH_STORED_VERTICES
);
807 i
= exec
->vtx
.prim_count
++;
808 exec
->vtx
.prim
[i
].mode
= mode
;
809 exec
->vtx
.prim
[i
].begin
= 1;
810 exec
->vtx
.prim
[i
].end
= 0;
811 exec
->vtx
.prim
[i
].start
= exec
->vtx
.vert_count
;
812 exec
->vtx
.prim
[i
].count
= 0;
814 ctx
->Driver
.CurrentExecPrimitive
= mode
;
816 ctx
->Exec
= ctx
->BeginEnd
;
818 /* We may have been called from a display list, in which case we should
819 * leave dlist.c's dispatch table in place.
821 if (ctx
->CurrentClientDispatch
== ctx
->MarshalExec
) {
822 ctx
->CurrentServerDispatch
= ctx
->Exec
;
823 } else if (ctx
->CurrentClientDispatch
== ctx
->OutsideBeginEnd
) {
824 ctx
->CurrentClientDispatch
= ctx
->Exec
;
825 _glapi_set_dispatch(ctx
->CurrentClientDispatch
);
827 assert(ctx
->CurrentClientDispatch
== ctx
->Save
);
833 * Try to merge / concatenate the two most recent VBO primitives.
836 try_vbo_merge(struct vbo_exec_context
*exec
)
838 struct _mesa_prim
*cur
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
840 assert(exec
->vtx
.prim_count
>= 1);
842 vbo_try_prim_conversion(cur
);
844 if (exec
->vtx
.prim_count
>= 2) {
845 struct _mesa_prim
*prev
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 2];
846 assert(prev
== cur
- 1);
848 if (vbo_can_merge_prims(prev
, cur
)) {
853 vbo_merge_prims(prev
, cur
);
854 exec
->vtx
.prim_count
--; /* drop the last primitive */
863 static void GLAPIENTRY
866 GET_CURRENT_CONTEXT(ctx
);
867 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
869 if (!_mesa_inside_begin_end(ctx
)) {
870 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnd");
874 ctx
->Exec
= ctx
->OutsideBeginEnd
;
876 if (ctx
->CurrentClientDispatch
== ctx
->MarshalExec
) {
877 ctx
->CurrentServerDispatch
= ctx
->Exec
;
878 } else if (ctx
->CurrentClientDispatch
== ctx
->BeginEnd
) {
879 ctx
->CurrentClientDispatch
= ctx
->Exec
;
880 _glapi_set_dispatch(ctx
->CurrentClientDispatch
);
883 if (exec
->vtx
.prim_count
> 0) {
884 /* close off current primitive */
885 struct _mesa_prim
*last_prim
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
886 unsigned count
= exec
->vtx
.vert_count
- last_prim
->start
;
889 last_prim
->count
= count
;
892 ctx
->Driver
.NeedFlush
|= FLUSH_STORED_VERTICES
;
894 /* Special handling for GL_LINE_LOOP */
895 if (last_prim
->mode
== GL_LINE_LOOP
&& last_prim
->begin
== 0) {
896 /* We're finishing drawing a line loop. Append 0th vertex onto
897 * end of vertex buffer so we can draw it as a line strip.
899 const fi_type
*src
= exec
->vtx
.buffer_map
+
900 last_prim
->start
* exec
->vtx
.vertex_size
;
901 fi_type
*dst
= exec
->vtx
.buffer_map
+
902 exec
->vtx
.vert_count
* exec
->vtx
.vertex_size
;
904 /* copy 0th vertex to end of buffer */
905 memcpy(dst
, src
, exec
->vtx
.vertex_size
* sizeof(fi_type
));
907 last_prim
->start
++; /* skip vertex0 */
908 /* note that last_prim->count stays unchanged */
909 last_prim
->mode
= GL_LINE_STRIP
;
911 /* Increment the vertex count so the next primitive doesn't
912 * overwrite the last vertex which we just added.
914 exec
->vtx
.vert_count
++;
915 exec
->vtx
.buffer_ptr
+= exec
->vtx
.vertex_size
;
921 ctx
->Driver
.CurrentExecPrimitive
= PRIM_OUTSIDE_BEGIN_END
;
923 if (exec
->vtx
.prim_count
== VBO_MAX_PRIM
)
924 vbo_exec_vtx_flush(exec
);
926 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
933 * Called via glPrimitiveRestartNV()
935 static void GLAPIENTRY
936 vbo_exec_PrimitiveRestartNV(void)
939 GET_CURRENT_CONTEXT(ctx
);
941 curPrim
= ctx
->Driver
.CurrentExecPrimitive
;
943 if (curPrim
== PRIM_OUTSIDE_BEGIN_END
) {
944 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPrimitiveRestartNV");
948 vbo_exec_Begin(curPrim
);
954 vbo_exec_vtxfmt_init(struct vbo_exec_context
*exec
)
956 struct gl_context
*ctx
= exec
->ctx
;
957 GLvertexformat
*vfmt
= &exec
->vtxfmt
;
959 #define NAME_AE(x) _ae_##x
960 #define NAME_CALLLIST(x) _mesa_##x
961 #define NAME(x) vbo_exec_##x
962 #define NAME_ES(x) _es_##x
964 #include "vbo_init_tmp.h"
969 vbo_reset_all_attr(struct vbo_exec_context
*exec
)
971 while (exec
->vtx
.enabled
) {
972 const int i
= u_bit_scan64(&exec
->vtx
.enabled
);
974 /* Reset the vertex attribute by setting its size to zero. */
975 exec
->vtx
.attr
[i
].size
= 0;
976 exec
->vtx
.attr
[i
].type
= GL_FLOAT
;
977 exec
->vtx
.attr
[i
].active_size
= 0;
978 exec
->vtx
.attrptr
[i
] = NULL
;
981 exec
->vtx
.vertex_size
= 0;
986 vbo_exec_vtx_init(struct vbo_exec_context
*exec
, bool use_buffer_objects
)
988 struct gl_context
*ctx
= exec
->ctx
;
990 if (use_buffer_objects
) {
991 /* Use buffer objects for immediate mode. */
992 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
994 exec
->vtx
.bufferobj
= ctx
->Driver
.NewBufferObject(ctx
, IMM_BUFFER_NAME
);
996 /* Map the buffer. */
997 vbo_exec_vtx_map(exec
);
998 assert(exec
->vtx
.buffer_ptr
);
1000 /* Use allocated memory for immediate mode. */
1001 _mesa_reference_buffer_object(ctx
,
1002 &exec
->vtx
.bufferobj
,
1003 ctx
->Shared
->NullBufferObj
);
1005 exec
->vtx
.buffer_map
= _mesa_align_malloc(VBO_VERT_BUFFER_SIZE
, 64);
1006 exec
->vtx
.buffer_ptr
= exec
->vtx
.buffer_map
;
1009 vbo_exec_vtxfmt_init(exec
);
1010 _mesa_noop_vtxfmt_init(ctx
, &exec
->vtxfmt_noop
);
1012 exec
->vtx
.enabled
= u_bit_consecutive64(0, VBO_ATTRIB_MAX
); /* reset all */
1013 vbo_reset_all_attr(exec
);
1018 vbo_exec_vtx_destroy(struct vbo_exec_context
*exec
)
1020 /* using a real VBO for vertex data */
1021 struct gl_context
*ctx
= exec
->ctx
;
1023 /* True VBOs should already be unmapped
1025 if (exec
->vtx
.buffer_map
) {
1026 assert(exec
->vtx
.bufferobj
->Name
== 0 ||
1027 exec
->vtx
.bufferobj
->Name
== IMM_BUFFER_NAME
);
1028 if (exec
->vtx
.bufferobj
->Name
== 0) {
1029 _mesa_align_free(exec
->vtx
.buffer_map
);
1030 exec
->vtx
.buffer_map
= NULL
;
1031 exec
->vtx
.buffer_ptr
= NULL
;
1035 /* Free the vertex buffer. Unmap first if needed.
1037 if (_mesa_bufferobj_mapped(exec
->vtx
.bufferobj
, MAP_INTERNAL
)) {
1038 ctx
->Driver
.UnmapBuffer(ctx
, exec
->vtx
.bufferobj
, MAP_INTERNAL
);
1040 _mesa_reference_buffer_object(ctx
, &exec
->vtx
.bufferobj
, NULL
);
1045 * If inside glBegin()/glEnd(), it should assert(0). Otherwise, if
1046 * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered
1047 * vertices, if FLUSH_UPDATE_CURRENT bit is set updates
1048 * __struct gl_contextRec::Current and gl_light_attrib::Material
1050 * Note that the default T&L engine never clears the
1051 * FLUSH_UPDATE_CURRENT bit, even after performing the update.
1053 * \param flags bitmask of FLUSH_STORED_VERTICES, FLUSH_UPDATE_CURRENT
1056 vbo_exec_FlushVertices(struct gl_context
*ctx
, GLuint flags
)
1058 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
1061 /* debug check: make sure we don't get called recursively */
1062 exec
->flush_call_depth
++;
1063 assert(exec
->flush_call_depth
== 1);
1066 if (_mesa_inside_begin_end(ctx
)) {
1067 /* We've had glBegin but not glEnd! */
1069 exec
->flush_call_depth
--;
1070 assert(exec
->flush_call_depth
== 0);
1076 vbo_exec_FlushVertices_internal(exec
, flags
);
1079 exec
->flush_call_depth
--;
1080 assert(exec
->flush_call_depth
== 0);
1086 _es_Color4f(GLfloat r
, GLfloat g
, GLfloat b
, GLfloat a
)
1088 vbo_exec_Color4f(r
, g
, b
, a
);
1093 _es_Normal3f(GLfloat x
, GLfloat y
, GLfloat z
)
1095 vbo_exec_Normal3f(x
, y
, z
);
1100 _es_MultiTexCoord4f(GLenum target
, GLfloat s
, GLfloat t
, GLfloat r
, GLfloat q
)
1102 vbo_exec_MultiTexCoord4f(target
, s
, t
, r
, q
);
1107 _es_Materialfv(GLenum face
, GLenum pname
, const GLfloat
*params
)
1109 vbo_exec_Materialfv(face
, pname
, params
);
1114 _es_Materialf(GLenum face
, GLenum pname
, GLfloat param
)
1118 p
[1] = p
[2] = p
[3] = 0.0F
;
1119 vbo_exec_Materialfv(face
, pname
, p
);
1124 * A special version of glVertexAttrib4f that does not treat index 0 as
1128 VertexAttrib4f_nopos(GLuint index
, GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
)
1130 GET_CURRENT_CONTEXT(ctx
);
1131 if (index
< MAX_VERTEX_GENERIC_ATTRIBS
)
1132 ATTRF(VBO_ATTRIB_GENERIC0
+ index
, 4, x
, y
, z
, w
);
1134 ERROR(GL_INVALID_VALUE
);
1138 _es_VertexAttrib4f(GLuint index
, GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
)
1140 VertexAttrib4f_nopos(index
, x
, y
, z
, w
);
1145 _es_VertexAttrib1f(GLuint indx
, GLfloat x
)
1147 VertexAttrib4f_nopos(indx
, x
, 0.0f
, 0.0f
, 1.0f
);
1152 _es_VertexAttrib1fv(GLuint indx
, const GLfloat
* values
)
1154 VertexAttrib4f_nopos(indx
, values
[0], 0.0f
, 0.0f
, 1.0f
);
1159 _es_VertexAttrib2f(GLuint indx
, GLfloat x
, GLfloat y
)
1161 VertexAttrib4f_nopos(indx
, x
, y
, 0.0f
, 1.0f
);
1166 _es_VertexAttrib2fv(GLuint indx
, const GLfloat
* values
)
1168 VertexAttrib4f_nopos(indx
, values
[0], values
[1], 0.0f
, 1.0f
);
1173 _es_VertexAttrib3f(GLuint indx
, GLfloat x
, GLfloat y
, GLfloat z
)
1175 VertexAttrib4f_nopos(indx
, x
, y
, z
, 1.0f
);
1180 _es_VertexAttrib3fv(GLuint indx
, const GLfloat
* values
)
1182 VertexAttrib4f_nopos(indx
, values
[0], values
[1], values
[2], 1.0f
);
1187 _es_VertexAttrib4fv(GLuint indx
, const GLfloat
* values
)
1189 VertexAttrib4f_nopos(indx
, values
[0], values
[1], values
[2], values
[3]);