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
, GLenum newType
)
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
.attr
[attr
].active_size
= newSize
;
282 exec
->vtx
.attr
[attr
].type
= newType
;
283 exec
->vtx
.vertex_size
+= newSize
- oldSize
;
284 exec
->vtx
.vertex_size_no_pos
= exec
->vtx
.vertex_size
- exec
->vtx
.attr
[0].size
;
285 exec
->vtx
.max_vert
= vbo_compute_max_verts(exec
);
286 exec
->vtx
.vert_count
= 0;
287 exec
->vtx
.buffer_ptr
= exec
->vtx
.buffer_map
;
288 exec
->vtx
.enabled
|= BITFIELD64_BIT(attr
);
291 if (unlikely(oldSize
)) {
292 unsigned offset
= exec
->vtx
.attrptr
[attr
] - exec
->vtx
.vertex
;
294 /* If there are attribs after the resized attrib... */
295 if (offset
+ oldSize
< old_vtx_size_no_pos
) {
296 int size_diff
= newSize
- oldSize
;
297 fi_type
*old_first
= exec
->vtx
.attrptr
[attr
] + oldSize
;
298 fi_type
*new_first
= exec
->vtx
.attrptr
[attr
] + newSize
;
299 fi_type
*old_last
= exec
->vtx
.vertex
+ old_vtx_size_no_pos
- 1;
300 fi_type
*new_last
= exec
->vtx
.vertex
+ exec
->vtx
.vertex_size_no_pos
- 1;
303 /* Decreasing the size: Copy from first to last to move
304 * elements to the left.
306 fi_type
*old_end
= old_last
+ 1;
307 fi_type
*old
= old_first
;
308 fi_type
*new = new_first
;
312 } while (old
!= old_end
);
314 /* Increasing the size: Copy from last to first to move
315 * elements to the right.
317 fi_type
*old_end
= old_first
- 1;
318 fi_type
*old
= old_last
;
319 fi_type
*new = new_last
;
323 } while (old
!= old_end
);
326 /* Update pointers to attribs, because we moved them. */
327 GLbitfield64 enabled
= exec
->vtx
.enabled
&
328 ~BITFIELD64_BIT(VBO_ATTRIB_POS
) &
329 ~BITFIELD64_BIT(attr
);
331 unsigned i
= u_bit_scan64(&enabled
);
333 if (exec
->vtx
.attrptr
[i
] > exec
->vtx
.attrptr
[attr
])
334 exec
->vtx
.attrptr
[i
] += size_diff
;
338 /* Just have to append the new attribute at the end */
339 exec
->vtx
.attrptr
[attr
] = exec
->vtx
.vertex
+
340 exec
->vtx
.vertex_size_no_pos
- newSize
;
344 /* The position is always last. */
345 exec
->vtx
.attrptr
[0] = exec
->vtx
.vertex
+ exec
->vtx
.vertex_size_no_pos
;
347 /* Replay stored vertices to translate them
348 * to new format here.
350 * -- No need to replay - just copy piecewise
352 if (unlikely(exec
->vtx
.copied
.nr
)) {
353 fi_type
*data
= exec
->vtx
.copied
.buffer
;
354 fi_type
*dest
= exec
->vtx
.buffer_ptr
;
356 assert(exec
->vtx
.buffer_ptr
== exec
->vtx
.buffer_map
);
358 for (i
= 0 ; i
< exec
->vtx
.copied
.nr
; i
++) {
359 GLbitfield64 enabled
= exec
->vtx
.enabled
;
361 const int j
= u_bit_scan64(&enabled
);
362 GLuint sz
= exec
->vtx
.attr
[j
].size
;
363 GLint old_offset
= old_attrptr
[j
] - exec
->vtx
.vertex
;
364 GLint new_offset
= exec
->vtx
.attrptr
[j
] - exec
->vtx
.vertex
;
371 COPY_CLEAN_4V_TYPE_AS_UNION(tmp
, oldSize
,
373 exec
->vtx
.attr
[j
].type
);
374 COPY_SZ_4V(dest
+ new_offset
, newSize
, tmp
);
376 fi_type
*current
= (fi_type
*)vbo
->current
[j
].Ptr
;
377 COPY_SZ_4V(dest
+ new_offset
, sz
, current
);
381 COPY_SZ_4V(dest
+ new_offset
, sz
, data
+ old_offset
);
385 data
+= old_vtx_size
;
386 dest
+= exec
->vtx
.vertex_size
;
389 exec
->vtx
.buffer_ptr
= dest
;
390 exec
->vtx
.vert_count
+= exec
->vtx
.copied
.nr
;
391 exec
->vtx
.copied
.nr
= 0;
397 * This is when a vertex attribute transitions to a different size.
398 * For example, we saw a bunch of glTexCoord2f() calls and now we got a
399 * glTexCoord4f() call. We promote the array from size=2 to size=4.
400 * \param newSize size of new vertex (number of 32-bit words).
401 * \param attr VBO_ATTRIB_x vertex attribute value
404 vbo_exec_fixup_vertex(struct gl_context
*ctx
, GLuint attr
,
405 GLuint newSize
, GLenum newType
)
407 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
409 assert(attr
< VBO_ATTRIB_MAX
);
411 if (newSize
> exec
->vtx
.attr
[attr
].size
||
412 newType
!= exec
->vtx
.attr
[attr
].type
) {
413 /* New size is larger. Need to flush existing vertices and get
414 * an enlarged vertex format.
416 vbo_exec_wrap_upgrade_vertex(exec
, attr
, newSize
, newType
);
418 else if (newSize
< exec
->vtx
.attr
[attr
].active_size
) {
421 vbo_get_default_vals_as_union(exec
->vtx
.attr
[attr
].type
);
423 /* New size is smaller - just need to fill in some
424 * zeros. Don't need to flush or wrap.
426 for (i
= newSize
; i
<= exec
->vtx
.attr
[attr
].size
; i
++)
427 exec
->vtx
.attrptr
[attr
][i
-1] = id
[i
-1];
429 exec
->vtx
.attr
[attr
].active_size
= newSize
;
435 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
436 * It depends on a few things, including whether we're inside or outside
440 is_vertex_position(const struct gl_context
*ctx
, GLuint index
)
442 return (index
== 0 &&
443 _mesa_attr_zero_aliases_vertex(ctx
) &&
444 _mesa_inside_begin_end(ctx
));
447 /* Write a 64-bit value into a 32-bit pointer by preserving endianness. */
448 #if UTIL_ARCH_LITTLE_ENDIAN
449 #define SET_64BIT(dst32, u64) do { \
450 *(dst32)++ = (u64); \
451 *(dst32)++ = (uint64_t)(u64) >> 32; \
454 #define SET_64BIT(dst32, u64) do { \
455 *(dst32)++ = (uint64_t)(u64) >> 32; \
456 *(dst32)++ = (u64); \
462 * This macro is used to implement all the glVertex, glColor, glTexCoord,
463 * glVertexAttrib, etc functions.
464 * \param A VBO_ATTRIB_x attribute index
465 * \param N attribute size (1..4)
466 * \param T type (GL_FLOAT, GL_DOUBLE, GL_INT, GL_UNSIGNED_INT)
467 * \param C cast type (uint32_t or uint64_t)
468 * \param V0, V1, v2, V3 attribute value
470 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
472 struct vbo_exec_context *exec = &vbo_context(ctx)->exec; \
473 int sz = (sizeof(C) / sizeof(GLfloat)); \
475 assert(sz == 1 || sz == 2); \
477 /* store a copy of the attribute in exec except for glVertex */ \
479 /* Check if attribute size or type is changing. */ \
480 if (unlikely(exec->vtx.attr[A].active_size != N * sz || \
481 exec->vtx.attr[A].type != T)) { \
482 vbo_exec_fixup_vertex(ctx, A, N * sz, T); \
485 C *dest = (C *)exec->vtx.attrptr[A]; \
486 if (N>0) dest[0] = V0; \
487 if (N>1) dest[1] = V1; \
488 if (N>2) dest[2] = V2; \
489 if (N>3) dest[3] = V3; \
490 assert(exec->vtx.attr[A].type == T); \
492 /* we now have accumulated a per-vertex attribute */ \
493 ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT; \
495 /* This is a glVertex call */ \
496 int size = exec->vtx.attr[0].size; \
498 /* Check if attribute size or type is changing. */ \
499 if (unlikely(size < N * sz || \
500 exec->vtx.attr[0].type != T)) { \
501 vbo_exec_wrap_upgrade_vertex(exec, 0, N * sz, T); \
504 uint32_t *dst = (uint32_t *)exec->vtx.buffer_ptr; \
505 uint32_t *src = (uint32_t *)exec->vtx.vertex; \
506 unsigned vertex_size_no_pos = exec->vtx.vertex_size_no_pos; \
508 /* Copy over attributes from exec. */ \
509 for (unsigned i = 0; i < vertex_size_no_pos; i++) \
512 /* Store the position, which is always last and can have 32 or */ \
513 /* 64 bits per channel. */ \
514 if (sizeof(C) == 4) { \
515 if (N > 0) *dst++ = V0; \
516 if (N > 1) *dst++ = V1; \
517 if (N > 2) *dst++ = V2; \
518 if (N > 3) *dst++ = V3; \
520 if (unlikely(N < size)) { \
521 if (N < 2 && size >= 2) *dst++ = V1; \
522 if (N < 3 && size >= 3) *dst++ = V2; \
523 if (N < 4 && size >= 4) *dst++ = V3; \
526 /* 64 bits: dst can be unaligned, so copy each 4-byte word */ \
528 if (N > 0) SET_64BIT(dst, V0); \
529 if (N > 1) SET_64BIT(dst, V1); \
530 if (N > 2) SET_64BIT(dst, V2); \
531 if (N > 3) SET_64BIT(dst, V3); \
533 if (unlikely(N * 2 < size)) { \
534 if (N < 2 && size >= 4) SET_64BIT(dst, V1); \
535 if (N < 3 && size >= 6) SET_64BIT(dst, V2); \
536 if (N < 4 && size >= 8) SET_64BIT(dst, V3); \
540 /* dst now points at the beginning of the next vertex */ \
541 exec->vtx.buffer_ptr = (fi_type*)dst; \
543 /* Don't set FLUSH_UPDATE_CURRENT because */ \
544 /* Current.Attrib[VBO_ATTRIB_POS] is never used. */ \
546 if (unlikely(++exec->vtx.vert_count >= exec->vtx.max_vert)) \
547 vbo_exec_vtx_wrap(exec); \
553 #define ERROR(err) _mesa_error(ctx, err, __func__)
554 #define TAG(x) vbo_exec_##x
556 #include "vbo_attrib_tmp.h"
561 * Execute a glMaterial call. Note that if GL_COLOR_MATERIAL is enabled,
562 * this may be a (partial) no-op.
564 static void GLAPIENTRY
565 vbo_exec_Materialfv(GLenum face
, GLenum pname
, const GLfloat
*params
)
567 GLbitfield updateMats
;
568 GET_CURRENT_CONTEXT(ctx
);
570 /* This function should be a no-op when it tries to update material
571 * attributes which are currently tracking glColor via glColorMaterial.
572 * The updateMats var will be a mask of the MAT_BIT_FRONT/BACK_x bits
573 * indicating which material attributes can actually be updated below.
575 if (ctx
->Light
.ColorMaterialEnabled
) {
576 updateMats
= ~ctx
->Light
._ColorMaterialBitmask
;
579 /* GL_COLOR_MATERIAL is disabled so don't skip any material updates */
580 updateMats
= ALL_MATERIAL_BITS
;
583 if (ctx
->API
== API_OPENGL_COMPAT
&& face
== GL_FRONT
) {
584 updateMats
&= FRONT_MATERIAL_BITS
;
586 else if (ctx
->API
== API_OPENGL_COMPAT
&& face
== GL_BACK
) {
587 updateMats
&= BACK_MATERIAL_BITS
;
589 else if (face
!= GL_FRONT_AND_BACK
) {
590 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterial(invalid face)");
596 if (updateMats
& MAT_BIT_FRONT_EMISSION
)
597 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_EMISSION
, 4, params
);
598 if (updateMats
& MAT_BIT_BACK_EMISSION
)
599 MAT_ATTR(VBO_ATTRIB_MAT_BACK_EMISSION
, 4, params
);
602 if (updateMats
& MAT_BIT_FRONT_AMBIENT
)
603 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_AMBIENT
, 4, params
);
604 if (updateMats
& MAT_BIT_BACK_AMBIENT
)
605 MAT_ATTR(VBO_ATTRIB_MAT_BACK_AMBIENT
, 4, params
);
608 if (updateMats
& MAT_BIT_FRONT_DIFFUSE
)
609 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_DIFFUSE
, 4, params
);
610 if (updateMats
& MAT_BIT_BACK_DIFFUSE
)
611 MAT_ATTR(VBO_ATTRIB_MAT_BACK_DIFFUSE
, 4, params
);
614 if (updateMats
& MAT_BIT_FRONT_SPECULAR
)
615 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_SPECULAR
, 4, params
);
616 if (updateMats
& MAT_BIT_BACK_SPECULAR
)
617 MAT_ATTR(VBO_ATTRIB_MAT_BACK_SPECULAR
, 4, params
);
620 if (*params
< 0 || *params
> ctx
->Const
.MaxShininess
) {
621 _mesa_error(ctx
, GL_INVALID_VALUE
,
622 "glMaterial(invalid shininess: %f out range [0, %f])",
623 *params
, ctx
->Const
.MaxShininess
);
626 if (updateMats
& MAT_BIT_FRONT_SHININESS
)
627 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_SHININESS
, 1, params
);
628 if (updateMats
& MAT_BIT_BACK_SHININESS
)
629 MAT_ATTR(VBO_ATTRIB_MAT_BACK_SHININESS
, 1, params
);
631 case GL_COLOR_INDEXES
:
632 if (ctx
->API
!= API_OPENGL_COMPAT
) {
633 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterialfv(pname)");
636 if (updateMats
& MAT_BIT_FRONT_INDEXES
)
637 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_INDEXES
, 3, params
);
638 if (updateMats
& MAT_BIT_BACK_INDEXES
)
639 MAT_ATTR(VBO_ATTRIB_MAT_BACK_INDEXES
, 3, params
);
641 case GL_AMBIENT_AND_DIFFUSE
:
642 if (updateMats
& MAT_BIT_FRONT_AMBIENT
)
643 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_AMBIENT
, 4, params
);
644 if (updateMats
& MAT_BIT_FRONT_DIFFUSE
)
645 MAT_ATTR(VBO_ATTRIB_MAT_FRONT_DIFFUSE
, 4, params
);
646 if (updateMats
& MAT_BIT_BACK_AMBIENT
)
647 MAT_ATTR(VBO_ATTRIB_MAT_BACK_AMBIENT
, 4, params
);
648 if (updateMats
& MAT_BIT_BACK_DIFFUSE
)
649 MAT_ATTR(VBO_ATTRIB_MAT_BACK_DIFFUSE
, 4, params
);
652 _mesa_error(ctx
, GL_INVALID_ENUM
, "glMaterialfv(pname)");
659 * Flush (draw) vertices.
661 * \param flags bitmask of FLUSH_STORED_VERTICES, FLUSH_UPDATE_CURRENT
664 vbo_exec_FlushVertices_internal(struct vbo_exec_context
*exec
, unsigned flags
)
666 struct gl_context
*ctx
= exec
->ctx
;
668 if (flags
& FLUSH_STORED_VERTICES
) {
669 if (exec
->vtx
.vert_count
) {
670 vbo_exec_vtx_flush(exec
);
673 if (exec
->vtx
.vertex_size
) {
674 vbo_exec_copy_to_current(exec
);
675 vbo_reset_all_attr(exec
);
679 ctx
->Driver
.NeedFlush
= 0;
681 assert(flags
== FLUSH_UPDATE_CURRENT
);
683 /* Note that the vertex size is unchanged.
684 * (vbo_reset_all_attr isn't called)
686 vbo_exec_copy_to_current(exec
);
688 /* Only FLUSH_UPDATE_CURRENT is done. */
689 ctx
->Driver
.NeedFlush
= ~FLUSH_UPDATE_CURRENT
;
694 static void GLAPIENTRY
695 vbo_exec_EvalCoord1f(GLfloat u
)
697 GET_CURRENT_CONTEXT(ctx
);
698 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
702 if (exec
->eval
.recalculate_maps
)
703 vbo_exec_eval_update(exec
);
705 for (i
= 0; i
<= VBO_ATTRIB_TEX7
; i
++) {
706 if (exec
->eval
.map1
[i
].map
)
707 if (exec
->vtx
.attr
[i
].active_size
!= exec
->eval
.map1
[i
].sz
)
708 vbo_exec_fixup_vertex(ctx
, i
, exec
->eval
.map1
[i
].sz
, GL_FLOAT
);
712 memcpy(exec
->vtx
.copied
.buffer
, exec
->vtx
.vertex
,
713 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
715 vbo_exec_do_EvalCoord1f(exec
, u
);
717 memcpy(exec
->vtx
.vertex
, exec
->vtx
.copied
.buffer
,
718 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
722 static void GLAPIENTRY
723 vbo_exec_EvalCoord2f(GLfloat u
, GLfloat v
)
725 GET_CURRENT_CONTEXT(ctx
);
726 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
730 if (exec
->eval
.recalculate_maps
)
731 vbo_exec_eval_update(exec
);
733 for (i
= 0; i
<= VBO_ATTRIB_TEX7
; i
++) {
734 if (exec
->eval
.map2
[i
].map
)
735 if (exec
->vtx
.attr
[i
].active_size
!= exec
->eval
.map2
[i
].sz
)
736 vbo_exec_fixup_vertex(ctx
, i
, exec
->eval
.map2
[i
].sz
, GL_FLOAT
);
739 if (ctx
->Eval
.AutoNormal
)
740 if (exec
->vtx
.attr
[VBO_ATTRIB_NORMAL
].active_size
!= 3)
741 vbo_exec_fixup_vertex(ctx
, VBO_ATTRIB_NORMAL
, 3, GL_FLOAT
);
744 memcpy(exec
->vtx
.copied
.buffer
, exec
->vtx
.vertex
,
745 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
747 vbo_exec_do_EvalCoord2f(exec
, u
, v
);
749 memcpy(exec
->vtx
.vertex
, exec
->vtx
.copied
.buffer
,
750 exec
->vtx
.vertex_size
* sizeof(GLfloat
));
754 static void GLAPIENTRY
755 vbo_exec_EvalCoord1fv(const GLfloat
*u
)
757 vbo_exec_EvalCoord1f(u
[0]);
761 static void GLAPIENTRY
762 vbo_exec_EvalCoord2fv(const GLfloat
*u
)
764 vbo_exec_EvalCoord2f(u
[0], u
[1]);
768 static void GLAPIENTRY
769 vbo_exec_EvalPoint1(GLint i
)
771 GET_CURRENT_CONTEXT(ctx
);
772 GLfloat du
= ((ctx
->Eval
.MapGrid1u2
- ctx
->Eval
.MapGrid1u1
) /
773 (GLfloat
) ctx
->Eval
.MapGrid1un
);
774 GLfloat u
= i
* du
+ ctx
->Eval
.MapGrid1u1
;
776 vbo_exec_EvalCoord1f(u
);
780 static void GLAPIENTRY
781 vbo_exec_EvalPoint2(GLint i
, GLint j
)
783 GET_CURRENT_CONTEXT(ctx
);
784 GLfloat du
= ((ctx
->Eval
.MapGrid2u2
- ctx
->Eval
.MapGrid2u1
) /
785 (GLfloat
) ctx
->Eval
.MapGrid2un
);
786 GLfloat dv
= ((ctx
->Eval
.MapGrid2v2
- ctx
->Eval
.MapGrid2v1
) /
787 (GLfloat
) ctx
->Eval
.MapGrid2vn
);
788 GLfloat u
= i
* du
+ ctx
->Eval
.MapGrid2u1
;
789 GLfloat v
= j
* dv
+ ctx
->Eval
.MapGrid2v1
;
791 vbo_exec_EvalCoord2f(u
, v
);
796 * Called via glBegin.
798 static void GLAPIENTRY
799 vbo_exec_Begin(GLenum mode
)
801 GET_CURRENT_CONTEXT(ctx
);
802 struct vbo_context
*vbo
= vbo_context(ctx
);
803 struct vbo_exec_context
*exec
= &vbo
->exec
;
806 if (_mesa_inside_begin_end(ctx
)) {
807 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBegin");
811 if (!_mesa_valid_prim_mode(ctx
, mode
, "glBegin")) {
815 if (!_mesa_valid_to_render(ctx
, "glBegin")) {
819 /* Heuristic: attempt to isolate attributes occurring outside
822 * Use FLUSH_STORED_VERTICES, because it updates current attribs and
823 * sets vertex_size to 0. (FLUSH_UPDATE_CURRENT doesn't change vertex_size)
825 if (exec
->vtx
.vertex_size
&& !exec
->vtx
.attr
[VBO_ATTRIB_POS
].size
)
826 vbo_exec_FlushVertices_internal(exec
, FLUSH_STORED_VERTICES
);
828 i
= exec
->vtx
.prim_count
++;
829 exec
->vtx
.prim
[i
].mode
= mode
;
830 exec
->vtx
.prim
[i
].begin
= 1;
831 exec
->vtx
.prim
[i
].end
= 0;
832 exec
->vtx
.prim
[i
].start
= exec
->vtx
.vert_count
;
833 exec
->vtx
.prim
[i
].count
= 0;
835 ctx
->Driver
.CurrentExecPrimitive
= mode
;
837 ctx
->Exec
= ctx
->BeginEnd
;
839 /* We may have been called from a display list, in which case we should
840 * leave dlist.c's dispatch table in place.
842 if (ctx
->CurrentClientDispatch
== ctx
->MarshalExec
) {
843 ctx
->CurrentServerDispatch
= ctx
->Exec
;
844 } else if (ctx
->CurrentClientDispatch
== ctx
->OutsideBeginEnd
) {
845 ctx
->CurrentClientDispatch
= ctx
->Exec
;
846 _glapi_set_dispatch(ctx
->CurrentClientDispatch
);
848 assert(ctx
->CurrentClientDispatch
== ctx
->Save
);
854 * Try to merge / concatenate the two most recent VBO primitives.
857 try_vbo_merge(struct vbo_exec_context
*exec
)
859 struct _mesa_prim
*cur
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
861 assert(exec
->vtx
.prim_count
>= 1);
863 vbo_try_prim_conversion(cur
);
865 if (exec
->vtx
.prim_count
>= 2) {
866 struct _mesa_prim
*prev
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 2];
867 assert(prev
== cur
- 1);
869 if (vbo_merge_draws(exec
->ctx
, false, prev
, cur
))
870 exec
->vtx
.prim_count
--; /* drop the last primitive */
878 static void GLAPIENTRY
881 GET_CURRENT_CONTEXT(ctx
);
882 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
884 if (!_mesa_inside_begin_end(ctx
)) {
885 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnd");
889 ctx
->Exec
= ctx
->OutsideBeginEnd
;
891 if (ctx
->CurrentClientDispatch
== ctx
->MarshalExec
) {
892 ctx
->CurrentServerDispatch
= ctx
->Exec
;
893 } else if (ctx
->CurrentClientDispatch
== ctx
->BeginEnd
) {
894 ctx
->CurrentClientDispatch
= ctx
->Exec
;
895 _glapi_set_dispatch(ctx
->CurrentClientDispatch
);
898 if (exec
->vtx
.prim_count
> 0) {
899 /* close off current primitive */
900 struct _mesa_prim
*last_prim
= &exec
->vtx
.prim
[exec
->vtx
.prim_count
- 1];
901 unsigned count
= exec
->vtx
.vert_count
- last_prim
->start
;
904 last_prim
->count
= count
;
907 ctx
->Driver
.NeedFlush
|= FLUSH_STORED_VERTICES
;
909 /* Special handling for GL_LINE_LOOP */
910 if (last_prim
->mode
== GL_LINE_LOOP
&& last_prim
->begin
== 0) {
911 /* We're finishing drawing a line loop. Append 0th vertex onto
912 * end of vertex buffer so we can draw it as a line strip.
914 const fi_type
*src
= exec
->vtx
.buffer_map
+
915 last_prim
->start
* exec
->vtx
.vertex_size
;
916 fi_type
*dst
= exec
->vtx
.buffer_map
+
917 exec
->vtx
.vert_count
* exec
->vtx
.vertex_size
;
919 /* copy 0th vertex to end of buffer */
920 memcpy(dst
, src
, exec
->vtx
.vertex_size
* sizeof(fi_type
));
922 last_prim
->start
++; /* skip vertex0 */
923 /* note that last_prim->count stays unchanged */
924 last_prim
->mode
= GL_LINE_STRIP
;
926 /* Increment the vertex count so the next primitive doesn't
927 * overwrite the last vertex which we just added.
929 exec
->vtx
.vert_count
++;
930 exec
->vtx
.buffer_ptr
+= exec
->vtx
.vertex_size
;
936 ctx
->Driver
.CurrentExecPrimitive
= PRIM_OUTSIDE_BEGIN_END
;
938 if (exec
->vtx
.prim_count
== VBO_MAX_PRIM
)
939 vbo_exec_vtx_flush(exec
);
941 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
948 * Called via glPrimitiveRestartNV()
950 static void GLAPIENTRY
951 vbo_exec_PrimitiveRestartNV(void)
954 GET_CURRENT_CONTEXT(ctx
);
956 curPrim
= ctx
->Driver
.CurrentExecPrimitive
;
958 if (curPrim
== PRIM_OUTSIDE_BEGIN_END
) {
959 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPrimitiveRestartNV");
963 vbo_exec_Begin(curPrim
);
969 vbo_exec_vtxfmt_init(struct vbo_exec_context
*exec
)
971 struct gl_context
*ctx
= exec
->ctx
;
972 GLvertexformat
*vfmt
= &exec
->vtxfmt
;
974 #define NAME_AE(x) _ae_##x
975 #define NAME_CALLLIST(x) _mesa_##x
976 #define NAME(x) vbo_exec_##x
977 #define NAME_ES(x) _es_##x
979 #include "vbo_init_tmp.h"
984 vbo_reset_all_attr(struct vbo_exec_context
*exec
)
986 while (exec
->vtx
.enabled
) {
987 const int i
= u_bit_scan64(&exec
->vtx
.enabled
);
989 /* Reset the vertex attribute by setting its size to zero. */
990 exec
->vtx
.attr
[i
].size
= 0;
991 exec
->vtx
.attr
[i
].type
= GL_FLOAT
;
992 exec
->vtx
.attr
[i
].active_size
= 0;
993 exec
->vtx
.attrptr
[i
] = NULL
;
996 exec
->vtx
.vertex_size
= 0;
1001 vbo_exec_vtx_init(struct vbo_exec_context
*exec
, bool use_buffer_objects
)
1003 struct gl_context
*ctx
= exec
->ctx
;
1005 if (use_buffer_objects
) {
1006 /* Use buffer objects for immediate mode. */
1007 struct vbo_exec_context
*exec
= &vbo_context(ctx
)->exec
;
1009 exec
->vtx
.bufferobj
= ctx
->Driver
.NewBufferObject(ctx
, IMM_BUFFER_NAME
);
1011 /* Map the buffer. */
1012 vbo_exec_vtx_map(exec
);
1013 assert(exec
->vtx
.buffer_ptr
);
1015 /* Use allocated memory for immediate mode. */
1016 exec
->vtx
.bufferobj
= NULL
;
1017 exec
->vtx
.buffer_map
=
1018 _mesa_align_malloc(ctx
->Const
.glBeginEndBufferSize
, 64);
1019 exec
->vtx
.buffer_ptr
= exec
->vtx
.buffer_map
;
1022 vbo_exec_vtxfmt_init(exec
);
1023 _mesa_noop_vtxfmt_init(ctx
, &exec
->vtxfmt_noop
);
1025 exec
->vtx
.enabled
= u_bit_consecutive64(0, VBO_ATTRIB_MAX
); /* reset all */
1026 vbo_reset_all_attr(exec
);
1031 vbo_exec_vtx_destroy(struct vbo_exec_context
*exec
)
1033 /* using a real VBO for vertex data */
1034 struct gl_context
*ctx
= exec
->ctx
;
1036 /* True VBOs should already be unmapped
1038 if (exec
->vtx
.buffer_map
) {
1039 assert(!exec
->vtx
.bufferobj
||
1040 exec
->vtx
.bufferobj
->Name
== IMM_BUFFER_NAME
);
1041 if (!exec
->vtx
.bufferobj
) {
1042 _mesa_align_free(exec
->vtx
.buffer_map
);
1043 exec
->vtx
.buffer_map
= NULL
;
1044 exec
->vtx
.buffer_ptr
= NULL
;
1048 /* Free the vertex buffer. Unmap first if needed.
1050 if (exec
->vtx
.bufferobj
&&
1051 _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]);