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
;
431 /* Does setting NeedFlush belong here? Necessitates resetting
432 * vtxfmt on each flush (otherwise flags won't get reset
436 ctx
->Driver
.NeedFlush
|= FLUSH_STORED_VERTICES
;
441 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
442 * It depends on a few things, including whether we're inside or outside
446 is_vertex_position(const struct gl_context
*ctx
, GLuint index
)
448 return (index
== 0 &&
449 _mesa_attr_zero_aliases_vertex(ctx
) &&
450 _mesa_inside_begin_end(ctx
));
453 /* Write a 64-bit value into a 32-bit pointer by preserving endianness. */
454 #if UTIL_ARCH_LITTLE_ENDIAN
455 #define SET_64BIT(dst32, u64) do { \
456 *(dst32)++ = (u64); \
457 *(dst32)++ = (uint64_t)(u64) >> 32; \
460 #define SET_64BIT(dst32, u64) do { \
461 *(dst32)++ = (uint64_t)(u64) >> 32; \
462 *(dst32)++ = (u64); \
468 * This macro is used to implement all the glVertex, glColor, glTexCoord,
469 * glVertexAttrib, etc functions.
470 * \param A VBO_ATTRIB_x attribute index
471 * \param N attribute size (1..4)
472 * \param T type (GL_FLOAT, GL_DOUBLE, GL_INT, GL_UNSIGNED_INT)
473 * \param C cast type (uint32_t or uint64_t)
474 * \param V0, V1, v2, V3 attribute value
476 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
478 struct vbo_exec_context *exec = &vbo_context(ctx)->exec; \
479 int sz = (sizeof(C) / sizeof(GLfloat)); \
481 assert(sz == 1 || sz == 2); \
483 /* check if attribute size or type is changing */ \
484 if (unlikely(exec->vtx.attr[A].active_size != N * sz || \
485 exec->vtx.attr[A].type != T)) { \
486 vbo_exec_fixup_vertex(ctx, A, N * sz, T); \
489 /* store a copy of the attribute in exec except for glVertex */ \
491 C *dest = (C *)exec->vtx.attrptr[A]; \
492 if (N>0) dest[0] = V0; \
493 if (N>1) dest[1] = V1; \
494 if (N>2) dest[2] = V2; \
495 if (N>3) dest[3] = V3; \
496 assert(exec->vtx.attr[A].type == T); \
500 /* This is a glVertex call */ \
501 uint32_t *dst = (uint32_t *)exec->vtx.buffer_ptr; \
502 uint32_t *src = (uint32_t *)exec->vtx.vertex; \
503 unsigned vertex_size_no_pos = exec->vtx.vertex_size_no_pos; \
505 /* Copy over attributes from exec. */ \
506 for (unsigned i = 0; i < vertex_size_no_pos; i++) \
509 /* Store the position, which is always last and can have 32 or */ \
510 /* 64 bits per channel. */ \
511 if (sizeof(C) == 4) { \
512 if (N > 0) *dst++ = V0; \
513 if (N > 1) *dst++ = V1; \
514 if (N > 2) *dst++ = V2; \
515 if (N > 3) *dst++ = V3; \
517 /* 64 bits: dst can be unaligned, so copy each 4-byte word */ \
519 if (N > 0) SET_64BIT(dst, V0); \
520 if (N > 1) SET_64BIT(dst, V1); \
521 if (N > 2) SET_64BIT(dst, V2); \
522 if (N > 3) SET_64BIT(dst, V3); \
525 /* dst now points at the beginning of the next vertex */ \
526 exec->vtx.buffer_ptr = (fi_type*)dst; \
528 /* Don't set FLUSH_UPDATE_CURRENT because */ \
529 /* Current.Attrib[VBO_ATTRIB_POS] is never used. */ \
531 if (unlikely(++exec->vtx.vert_count >= exec->vtx.max_vert)) \
532 vbo_exec_vtx_wrap(exec); \
534 /* we now have accumulated per-vertex attributes */ \
535 ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT; \
541 #define ERROR(err) _mesa_error(ctx, err, __func__)
542 #define TAG(x) vbo_exec_##x
544 #include "vbo_attrib_tmp.h"
549 * Execute a glMaterial call. Note that if GL_COLOR_MATERIAL is enabled,
550 * this may be a (partial) no-op.
552 static void GLAPIENTRY
553 vbo_exec_Materialfv(GLenum face
, GLenum pname
, const GLfloat
*params
)
555 GLbitfield updateMats
;
556 GET_CURRENT_CONTEXT(ctx
);
558 /* This function should be a no-op when it tries to update material
559 * attributes which are currently tracking glColor via glColorMaterial.
560 * The updateMats var will be a mask of the MAT_BIT_FRONT/BACK_x bits
561 * indicating which material attributes can actually be updated below.
563 if (ctx
->Light
.ColorMaterialEnabled
) {
564 updateMats
= ~ctx
->Light
._ColorMaterialBitmask
;
567 /* GL_COLOR_MATERIAL is disabled so don't skip any material updates */
568 updateMats
= ALL_MATERIAL_BITS
;
571 if (ctx
->API
== API_OPENGL_COMPAT
&& face
== GL_FRONT
) {
572 updateMats
&= FRONT_MATERIAL_BITS
;
574 else if (ctx
->API
== API_OPENGL_COMPAT
&& face
== GL_BACK
) {
575 updateMats
&= BACK_MATERIAL_BITS
;
577 else if (face
!= GL_FRONT_AND_BACK
) {
578 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterial(invalid face)");
584 if (updateMats
& MAT_BIT_FRONT_EMISSION
)
585 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_EMISSION
, 4, params
);
586 if (updateMats
& MAT_BIT_BACK_EMISSION
)
587 MAT_ATTR(VBO_ATTRIB_MAT_BACK_EMISSION
, 4, params
);
590 if (updateMats
& MAT_BIT_FRONT_AMBIENT
)
591 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_AMBIENT
, 4, params
);
592 if (updateMats
& MAT_BIT_BACK_AMBIENT
)
593 MAT_ATTR(VBO_ATTRIB_MAT_BACK_AMBIENT
, 4, params
);
596 if (updateMats
& MAT_BIT_FRONT_DIFFUSE
)
597 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_DIFFUSE
, 4, params
);
598 if (updateMats
& MAT_BIT_BACK_DIFFUSE
)
599 MAT_ATTR(VBO_ATTRIB_MAT_BACK_DIFFUSE
, 4, params
);
602 if (updateMats
& MAT_BIT_FRONT_SPECULAR
)
603 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_SPECULAR
, 4, params
);
604 if (updateMats
& MAT_BIT_BACK_SPECULAR
)
605 MAT_ATTR(VBO_ATTRIB_MAT_BACK_SPECULAR
, 4, params
);
608 if (*params
< 0 || *params
> ctx
->Const
.MaxShininess
) {
609 _mesa_error(ctx
, GL_INVALID_VALUE
,
610 "glMaterial(invalid shininess: %f out range [0, %f])",
611 *params
, ctx
->Const
.MaxShininess
);
614 if (updateMats
& MAT_BIT_FRONT_SHININESS
)
615 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_SHININESS
, 1, params
);
616 if (updateMats
& MAT_BIT_BACK_SHININESS
)
617 MAT_ATTR(VBO_ATTRIB_MAT_BACK_SHININESS
, 1, params
);
619 case GL_COLOR_INDEXES
:
620 if (ctx
->API
!= API_OPENGL_COMPAT
) {
621 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterialfv(pname)");
624 if (updateMats
& MAT_BIT_FRONT_INDEXES
)
625 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_INDEXES
, 3, params
);
626 if (updateMats
& MAT_BIT_BACK_INDEXES
)
627 MAT_ATTR(VBO_ATTRIB_MAT_BACK_INDEXES
, 3, params
);
629 case GL_AMBIENT_AND_DIFFUSE
:
630 if (updateMats
& MAT_BIT_FRONT_AMBIENT
)
631 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_AMBIENT
, 4, params
);
632 if (updateMats
& MAT_BIT_FRONT_DIFFUSE
)
633 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_DIFFUSE
, 4, params
);
634 if (updateMats
& MAT_BIT_BACK_AMBIENT
)
635 MAT_ATTR(VBO_ATTRIB_MAT_BACK_AMBIENT
, 4, params
);
636 if (updateMats
& MAT_BIT_BACK_DIFFUSE
)
637 MAT_ATTR(VBO_ATTRIB_MAT_BACK_DIFFUSE
, 4, params
);
640 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterialfv(pname)");
647 * Flush (draw) vertices.
649 * \param flags bitmask of FLUSH_STORED_VERTICES, FLUSH_UPDATE_CURRENT
652 vbo_exec_FlushVertices_internal(struct vbo_exec_context
*exec
, unsigned flags
)
654 struct gl_context
*ctx
= exec
->ctx
;
656 if (flags
& FLUSH_STORED_VERTICES
) {
657 if (exec
->vtx
.vert_count
) {
658 vbo_exec_vtx_flush(exec
);
661 if (exec
->vtx
.vertex_size
) {
662 vbo_exec_copy_to_current(exec
);
663 vbo_reset_all_attr(exec
);
667 ctx
->Driver
.NeedFlush
= 0;
669 assert(flags
== FLUSH_UPDATE_CURRENT
);
671 /* Note that the vertex size is unchanged.
672 * (vbo_reset_all_attr isn't called)
674 vbo_exec_copy_to_current(exec
);
676 /* Only FLUSH_UPDATE_CURRENT is done. */
677 ctx
->Driver
.NeedFlush
= ~FLUSH_UPDATE_CURRENT
;
682 static void GLAPIENTRY
683 vbo_exec_EvalCoord1f(GLfloat u
)
685 GET_CURRENT_CONTEXT(ctx
);
686 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
690 if (exec
->eval
.recalculate_maps
)
691 vbo_exec_eval_update(exec
);
693 for (i
= 0; i
<= VBO_ATTRIB_TEX7
; i
++) {
694 if (exec
->eval
.map1
[i
].map
)
695 if (exec
->vtx
.attr
[i
].active_size
!= exec
->eval
.map1
[i
].sz
)
696 vbo_exec_fixup_vertex(ctx
, i
, exec
->eval
.map1
[i
].sz
, GL_FLOAT
);
700 memcpy(exec
->vtx
.copied
.buffer
, exec
->vtx
.vertex
,
701 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
703 vbo_exec_do_EvalCoord1f(exec
, u
);
705 memcpy(exec
->vtx
.vertex
, exec
->vtx
.copied
.buffer
,
706 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
710 static void GLAPIENTRY
711 vbo_exec_EvalCoord2f(GLfloat u
, GLfloat v
)
713 GET_CURRENT_CONTEXT(ctx
);
714 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
718 if (exec
->eval
.recalculate_maps
)
719 vbo_exec_eval_update(exec
);
721 for (i
= 0; i
<= VBO_ATTRIB_TEX7
; i
++) {
722 if (exec
->eval
.map2
[i
].map
)
723 if (exec
->vtx
.attr
[i
].active_size
!= exec
->eval
.map2
[i
].sz
)
724 vbo_exec_fixup_vertex(ctx
, i
, exec
->eval
.map2
[i
].sz
, GL_FLOAT
);
727 if (ctx
->Eval
.AutoNormal
)
728 if (exec
->vtx
.attr
[VBO_ATTRIB_NORMAL
].active_size
!= 3)
729 vbo_exec_fixup_vertex(ctx
, VBO_ATTRIB_NORMAL
, 3, GL_FLOAT
);
732 memcpy(exec
->vtx
.copied
.buffer
, exec
->vtx
.vertex
,
733 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
735 vbo_exec_do_EvalCoord2f(exec
, u
, v
);
737 memcpy(exec
->vtx
.vertex
, exec
->vtx
.copied
.buffer
,
738 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
742 static void GLAPIENTRY
743 vbo_exec_EvalCoord1fv(const GLfloat
*u
)
745 vbo_exec_EvalCoord1f(u
[0]);
749 static void GLAPIENTRY
750 vbo_exec_EvalCoord2fv(const GLfloat
*u
)
752 vbo_exec_EvalCoord2f(u
[0], u
[1]);
756 static void GLAPIENTRY
757 vbo_exec_EvalPoint1(GLint i
)
759 GET_CURRENT_CONTEXT(ctx
);
760 GLfloat du
= ((ctx
->Eval
.MapGrid1u2
- ctx
->Eval
.MapGrid1u1
) /
761 (GLfloat
) ctx
->Eval
.MapGrid1un
);
762 GLfloat u
= i
* du
+ ctx
->Eval
.MapGrid1u1
;
764 vbo_exec_EvalCoord1f(u
);
768 static void GLAPIENTRY
769 vbo_exec_EvalPoint2(GLint i
, GLint j
)
771 GET_CURRENT_CONTEXT(ctx
);
772 GLfloat du
= ((ctx
->Eval
.MapGrid2u2
- ctx
->Eval
.MapGrid2u1
) /
773 (GLfloat
) ctx
->Eval
.MapGrid2un
);
774 GLfloat dv
= ((ctx
->Eval
.MapGrid2v2
- ctx
->Eval
.MapGrid2v1
) /
775 (GLfloat
) ctx
->Eval
.MapGrid2vn
);
776 GLfloat u
= i
* du
+ ctx
->Eval
.MapGrid2u1
;
777 GLfloat v
= j
* dv
+ ctx
->Eval
.MapGrid2v1
;
779 vbo_exec_EvalCoord2f(u
, v
);
784 * Called via glBegin.
786 static void GLAPIENTRY
787 vbo_exec_Begin(GLenum mode
)
789 GET_CURRENT_CONTEXT(ctx
);
790 struct vbo_context
*vbo
= vbo_context(ctx
);
791 struct vbo_exec_context
*exec
= &vbo
->exec
;
794 if (_mesa_inside_begin_end(ctx
)) {
795 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBegin");
799 if (!_mesa_valid_prim_mode(ctx
, mode
, "glBegin")) {
803 if (!_mesa_valid_to_render(ctx
, "glBegin")) {
807 /* Heuristic: attempt to isolate attributes occurring outside
810 * Use FLUSH_STORED_VERTICES, because it updates current attribs and
811 * sets vertex_size to 0. (FLUSH_UPDATE_CURRENT doesn't change vertex_size)
813 if (exec
->vtx
.vertex_size
&& !exec
->vtx
.attr
[VBO_ATTRIB_POS
].size
)
814 vbo_exec_FlushVertices_internal(exec
, FLUSH_STORED_VERTICES
);
816 i
= exec
->vtx
.prim_count
++;
817 exec
->vtx
.prim
[i
].mode
= mode
;
818 exec
->vtx
.prim
[i
].begin
= 1;
819 exec
->vtx
.prim
[i
].end
= 0;
820 exec
->vtx
.prim
[i
].indexed
= 0;
821 exec
->vtx
.prim
[i
].pad
= 0;
822 exec
->vtx
.prim
[i
].start
= exec
->vtx
.vert_count
;
823 exec
->vtx
.prim
[i
].count
= 0;
824 exec
->vtx
.prim
[i
].num_instances
= 1;
825 exec
->vtx
.prim
[i
].base_instance
= 0;
826 exec
->vtx
.prim
[i
].is_indirect
= 0;
828 ctx
->Driver
.CurrentExecPrimitive
= mode
;
830 ctx
->Exec
= ctx
->BeginEnd
;
832 /* We may have been called from a display list, in which case we should
833 * leave dlist.c's dispatch table in place.
835 if (ctx
->CurrentClientDispatch
== ctx
->MarshalExec
) {
836 ctx
->CurrentServerDispatch
= ctx
->Exec
;
837 } else if (ctx
->CurrentClientDispatch
== ctx
->OutsideBeginEnd
) {
838 ctx
->CurrentClientDispatch
= ctx
->Exec
;
839 _glapi_set_dispatch(ctx
->CurrentClientDispatch
);
841 assert(ctx
->CurrentClientDispatch
== ctx
->Save
);
847 * Try to merge / concatenate the two most recent VBO primitives.
850 try_vbo_merge(struct vbo_exec_context
*exec
)
852 struct _mesa_prim
*cur
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
854 assert(exec
->vtx
.prim_count
>= 1);
856 vbo_try_prim_conversion(cur
);
858 if (exec
->vtx
.prim_count
>= 2) {
859 struct _mesa_prim
*prev
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 2];
860 assert(prev
== cur
- 1);
862 if (vbo_can_merge_prims(prev
, cur
)) {
867 vbo_merge_prims(prev
, cur
);
868 exec
->vtx
.prim_count
--; /* drop the last primitive */
877 static void GLAPIENTRY
880 GET_CURRENT_CONTEXT(ctx
);
881 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
883 if (!_mesa_inside_begin_end(ctx
)) {
884 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnd");
888 ctx
->Exec
= ctx
->OutsideBeginEnd
;
890 if (ctx
->CurrentClientDispatch
== ctx
->MarshalExec
) {
891 ctx
->CurrentServerDispatch
= ctx
->Exec
;
892 } else if (ctx
->CurrentClientDispatch
== ctx
->BeginEnd
) {
893 ctx
->CurrentClientDispatch
= ctx
->Exec
;
894 _glapi_set_dispatch(ctx
->CurrentClientDispatch
);
897 if (exec
->vtx
.prim_count
> 0) {
898 /* close off current primitive */
899 struct _mesa_prim
*last_prim
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
900 unsigned count
= exec
->vtx
.vert_count
- last_prim
->start
;
903 last_prim
->count
= count
;
906 ctx
->Driver
.NeedFlush
|= FLUSH_STORED_VERTICES
;
908 /* Special handling for GL_LINE_LOOP */
909 if (last_prim
->mode
== GL_LINE_LOOP
&& last_prim
->begin
== 0) {
910 /* We're finishing drawing a line loop. Append 0th vertex onto
911 * end of vertex buffer so we can draw it as a line strip.
913 const fi_type
*src
= exec
->vtx
.buffer_map
+
914 last_prim
->start
* exec
->vtx
.vertex_size
;
915 fi_type
*dst
= exec
->vtx
.buffer_map
+
916 exec
->vtx
.vert_count
* exec
->vtx
.vertex_size
;
918 /* copy 0th vertex to end of buffer */
919 memcpy(dst
, src
, exec
->vtx
.vertex_size
* sizeof(fi_type
));
921 last_prim
->start
++; /* skip vertex0 */
922 /* note that last_prim->count stays unchanged */
923 last_prim
->mode
= GL_LINE_STRIP
;
925 /* Increment the vertex count so the next primitive doesn't
926 * overwrite the last vertex which we just added.
928 exec
->vtx
.vert_count
++;
929 exec
->vtx
.buffer_ptr
+= exec
->vtx
.vertex_size
;
935 ctx
->Driver
.CurrentExecPrimitive
= PRIM_OUTSIDE_BEGIN_END
;
937 if (exec
->vtx
.prim_count
== VBO_MAX_PRIM
)
938 vbo_exec_vtx_flush(exec
);
940 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
947 * Called via glPrimitiveRestartNV()
949 static void GLAPIENTRY
950 vbo_exec_PrimitiveRestartNV(void)
953 GET_CURRENT_CONTEXT(ctx
);
955 curPrim
= ctx
->Driver
.CurrentExecPrimitive
;
957 if (curPrim
== PRIM_OUTSIDE_BEGIN_END
) {
958 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPrimitiveRestartNV");
962 vbo_exec_Begin(curPrim
);
968 vbo_exec_vtxfmt_init(struct vbo_exec_context
*exec
)
970 struct gl_context
*ctx
= exec
->ctx
;
971 GLvertexformat
*vfmt
= &exec
->vtxfmt
;
973 #define NAME_AE(x) _ae_##x
974 #define NAME_CALLLIST(x) _mesa_##x
975 #define NAME(x) vbo_exec_##x
976 #define NAME_ES(x) _es_##x
978 #include "vbo_init_tmp.h"
983 vbo_reset_all_attr(struct vbo_exec_context
*exec
)
985 while (exec
->vtx
.enabled
) {
986 const int i
= u_bit_scan64(&exec
->vtx
.enabled
);
988 /* Reset the vertex attribute by setting its size to zero. */
989 exec
->vtx
.attr
[i
].size
= 0;
990 exec
->vtx
.attr
[i
].type
= GL_FLOAT
;
991 exec
->vtx
.attr
[i
].active_size
= 0;
992 exec
->vtx
.attrptr
[i
] = NULL
;
995 exec
->vtx
.vertex_size
= 0;
1000 vbo_exec_vtx_init(struct vbo_exec_context
*exec
, bool use_buffer_objects
)
1002 struct gl_context
*ctx
= exec
->ctx
;
1004 if (use_buffer_objects
) {
1005 /* Use buffer objects for immediate mode. */
1006 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
1008 exec
->vtx
.bufferobj
= ctx
->Driver
.NewBufferObject(ctx
, IMM_BUFFER_NAME
);
1010 /* Map the buffer. */
1011 vbo_exec_vtx_map(exec
);
1012 assert(exec
->vtx
.buffer_ptr
);
1014 /* Use allocated memory for immediate mode. */
1015 _mesa_reference_buffer_object(ctx
,
1016 &exec
->vtx
.bufferobj
,
1017 ctx
->Shared
->NullBufferObj
);
1019 exec
->vtx
.buffer_map
= _mesa_align_malloc(VBO_VERT_BUFFER_SIZE
, 64);
1020 exec
->vtx
.buffer_ptr
= exec
->vtx
.buffer_map
;
1023 vbo_exec_vtxfmt_init(exec
);
1024 _mesa_noop_vtxfmt_init(ctx
, &exec
->vtxfmt_noop
);
1026 exec
->vtx
.enabled
= u_bit_consecutive64(0, VBO_ATTRIB_MAX
); /* reset all */
1027 vbo_reset_all_attr(exec
);
1032 vbo_exec_vtx_destroy(struct vbo_exec_context
*exec
)
1034 /* using a real VBO for vertex data */
1035 struct gl_context
*ctx
= exec
->ctx
;
1037 /* True VBOs should already be unmapped
1039 if (exec
->vtx
.buffer_map
) {
1040 assert(exec
->vtx
.bufferobj
->Name
== 0 ||
1041 exec
->vtx
.bufferobj
->Name
== IMM_BUFFER_NAME
);
1042 if (exec
->vtx
.bufferobj
->Name
== 0) {
1043 _mesa_align_free(exec
->vtx
.buffer_map
);
1044 exec
->vtx
.buffer_map
= NULL
;
1045 exec
->vtx
.buffer_ptr
= NULL
;
1049 /* Free the vertex buffer. Unmap first if needed.
1051 if (_mesa_bufferobj_mapped(exec
->vtx
.bufferobj
, MAP_INTERNAL
)) {
1052 ctx
->Driver
.UnmapBuffer(ctx
, exec
->vtx
.bufferobj
, MAP_INTERNAL
);
1054 _mesa_reference_buffer_object(ctx
, &exec
->vtx
.bufferobj
, NULL
);
1059 * If inside glBegin()/glEnd(), it should assert(0). Otherwise, if
1060 * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered
1061 * vertices, if FLUSH_UPDATE_CURRENT bit is set updates
1062 * __struct gl_contextRec::Current and gl_light_attrib::Material
1064 * Note that the default T&L engine never clears the
1065 * FLUSH_UPDATE_CURRENT bit, even after performing the update.
1067 * \param flags bitmask of FLUSH_STORED_VERTICES, FLUSH_UPDATE_CURRENT
1070 vbo_exec_FlushVertices(struct gl_context
*ctx
, GLuint flags
)
1072 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
1075 /* debug check: make sure we don't get called recursively */
1076 exec
->flush_call_depth
++;
1077 assert(exec
->flush_call_depth
== 1);
1080 if (_mesa_inside_begin_end(ctx
)) {
1081 /* We've had glBegin but not glEnd! */
1083 exec
->flush_call_depth
--;
1084 assert(exec
->flush_call_depth
== 0);
1090 vbo_exec_FlushVertices_internal(exec
, flags
);
1093 exec
->flush_call_depth
--;
1094 assert(exec
->flush_call_depth
== 0);
1100 _es_Color4f(GLfloat r
, GLfloat g
, GLfloat b
, GLfloat a
)
1102 vbo_exec_Color4f(r
, g
, b
, a
);
1107 _es_Normal3f(GLfloat x
, GLfloat y
, GLfloat z
)
1109 vbo_exec_Normal3f(x
, y
, z
);
1114 _es_MultiTexCoord4f(GLenum target
, GLfloat s
, GLfloat t
, GLfloat r
, GLfloat q
)
1116 vbo_exec_MultiTexCoord4f(target
, s
, t
, r
, q
);
1121 _es_Materialfv(GLenum face
, GLenum pname
, const GLfloat
*params
)
1123 vbo_exec_Materialfv(face
, pname
, params
);
1128 _es_Materialf(GLenum face
, GLenum pname
, GLfloat param
)
1132 p
[1] = p
[2] = p
[3] = 0.0F
;
1133 vbo_exec_Materialfv(face
, pname
, p
);
1138 * A special version of glVertexAttrib4f that does not treat index 0 as
1142 VertexAttrib4f_nopos(GLuint index
, GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
)
1144 GET_CURRENT_CONTEXT(ctx
);
1145 if (index
< MAX_VERTEX_GENERIC_ATTRIBS
)
1146 ATTRF(VBO_ATTRIB_GENERIC0
+ index
, 4, x
, y
, z
, w
);
1148 ERROR(GL_INVALID_VALUE
);
1152 _es_VertexAttrib4f(GLuint index
, GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
)
1154 VertexAttrib4f_nopos(index
, x
, y
, z
, w
);
1159 _es_VertexAttrib1f(GLuint indx
, GLfloat x
)
1161 VertexAttrib4f_nopos(indx
, x
, 0.0f
, 0.0f
, 1.0f
);
1166 _es_VertexAttrib1fv(GLuint indx
, const GLfloat
* values
)
1168 VertexAttrib4f_nopos(indx
, values
[0], 0.0f
, 0.0f
, 1.0f
);
1173 _es_VertexAttrib2f(GLuint indx
, GLfloat x
, GLfloat y
)
1175 VertexAttrib4f_nopos(indx
, x
, y
, 0.0f
, 1.0f
);
1180 _es_VertexAttrib2fv(GLuint indx
, const GLfloat
* values
)
1182 VertexAttrib4f_nopos(indx
, values
[0], values
[1], 0.0f
, 1.0f
);
1187 _es_VertexAttrib3f(GLuint indx
, GLfloat x
, GLfloat y
, GLfloat z
)
1189 VertexAttrib4f_nopos(indx
, x
, y
, z
, 1.0f
);
1194 _es_VertexAttrib3fv(GLuint indx
, const GLfloat
* values
)
1196 VertexAttrib4f_nopos(indx
, values
[0], values
[1], values
[2], 1.0f
);
1201 _es_VertexAttrib4fv(GLuint indx
, const GLfloat
* values
)
1203 VertexAttrib4f_nopos(indx
, values
[0], values
[1], values
[2], values
[3]);