1 /**************************************************************************
3 * Copyright 2003 VMware, Inc.
4 * Copyright 2009 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
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
30 #include "main/arrayobj.h"
31 #include "main/glheader.h"
32 #include "main/context.h"
33 #include "main/state.h"
34 #include "main/api_validate.h"
35 #include "main/dispatch.h"
36 #include "main/varray.h"
37 #include "main/bufferobj.h"
38 #include "main/enums.h"
39 #include "main/macros.h"
40 #include "main/transformfeedback.h"
42 #include "vbo_context.h"
46 * Check that element 'j' of the array has reasonable data.
48 * For debugging purposes; not normally used.
51 check_array_data(struct gl_context
*ctx
, struct gl_vertex_array_object
*vao
,
52 GLuint attrib
, GLuint j
)
54 const struct gl_array_attributes
*array
= &vao
->VertexAttrib
[attrib
];
56 const struct gl_vertex_buffer_binding
*binding
=
57 &vao
->BufferBinding
[array
->BufferBindingIndex
];
58 struct gl_buffer_object
*bo
= binding
->BufferObj
;
59 const void *data
= array
->Ptr
;
60 if (_mesa_is_bufferobj(bo
)) {
61 if (!bo
->Mappings
[MAP_INTERNAL
].Pointer
) {
63 bo
->Mappings
[MAP_INTERNAL
].Pointer
=
64 ctx
->Driver
.MapBufferRange(ctx
, 0, bo
->Size
,
65 GL_MAP_READ_BIT
, bo
, MAP_INTERNAL
);
67 data
= ADD_POINTERS(_mesa_vertex_attrib_address(array
, binding
),
68 bo
->Mappings
[MAP_INTERNAL
].Pointer
);
70 switch (array
->Type
) {
73 GLfloat
*f
= (GLfloat
*) ((GLubyte
*) data
+ binding
->Stride
* j
);
75 for (k
= 0; k
< array
->Size
; k
++) {
76 if (IS_INF_OR_NAN(f
[k
]) || f
[k
] >= 1.0e20F
|| f
[k
] <= -1.0e10F
) {
77 printf("Bad array data:\n");
78 printf(" Element[%u].%u = %f\n", j
, k
, f
[k
]);
79 printf(" Array %u at %p\n", attrib
, (void *) array
);
80 printf(" Type 0x%x, Size %d, Stride %d\n",
81 array
->Type
, array
->Size
, binding
->Stride
);
82 printf(" Address/offset %p in Buffer Object %u\n",
83 array
->Ptr
, bo
->Name
);
84 f
[k
] = 1.0F
; /* XXX replace the bad value! */
86 /*assert(!IS_INF_OR_NAN(f[k])); */
98 * Unmap the buffer object referenced by given array, if mapped.
101 unmap_array_buffer(struct gl_context
*ctx
, struct gl_vertex_array_object
*vao
,
104 const struct gl_array_attributes
*array
= &vao
->VertexAttrib
[attrib
];
105 if (array
->Enabled
) {
106 const struct gl_vertex_buffer_binding
*binding
=
107 &vao
->BufferBinding
[array
->BufferBindingIndex
];
108 struct gl_buffer_object
*bo
= binding
->BufferObj
;
109 if (_mesa_is_bufferobj(bo
) && _mesa_bufferobj_mapped(bo
, MAP_INTERNAL
)) {
110 ctx
->Driver
.UnmapBuffer(ctx
, bo
, MAP_INTERNAL
);
117 * Examine the array's data for NaNs, etc.
118 * For debug purposes; not normally used.
121 check_draw_elements_data(struct gl_context
*ctx
, GLsizei count
,
122 GLenum elemType
, const void *elements
,
125 struct gl_vertex_array_object
*vao
= ctx
->Array
.VAO
;
130 if (_mesa_is_bufferobj(vao
->IndexBufferObj
)) {
131 elemMap
= ctx
->Driver
.MapBufferRange(ctx
, 0,
132 vao
->IndexBufferObj
->Size
,
134 vao
->IndexBufferObj
, MAP_INTERNAL
);
135 elements
= ADD_POINTERS(elements
, elemMap
);
138 for (i
= 0; i
< count
; i
++) {
143 case GL_UNSIGNED_BYTE
:
144 j
= ((const GLubyte
*) elements
)[i
];
146 case GL_UNSIGNED_SHORT
:
147 j
= ((const GLushort
*) elements
)[i
];
149 case GL_UNSIGNED_INT
:
150 j
= ((const GLuint
*) elements
)[i
];
156 /* check element j of each enabled array */
157 for (k
= 0; k
< VERT_ATTRIB_MAX
; k
++) {
158 check_array_data(ctx
, vao
, k
, j
);
162 if (_mesa_is_bufferobj(vao
->IndexBufferObj
)) {
163 ctx
->Driver
.UnmapBuffer(ctx
, vao
->IndexBufferObj
, MAP_INTERNAL
);
166 for (k
= 0; k
< VERT_ATTRIB_MAX
; k
++) {
167 unmap_array_buffer(ctx
, vao
, k
);
173 * Check array data, looking for NaNs, etc.
176 check_draw_arrays_data(struct gl_context
*ctx
, GLint start
, GLsizei count
)
183 * Check if we should skip the draw call even after validation was successful.
186 skip_validated_draw(struct gl_context
*ctx
)
190 /* For ES2, we can draw if we have a vertex program/shader). */
191 return ctx
->VertexProgram
._Current
== NULL
;
194 /* For OpenGL ES, only draw if we have vertex positions
196 if (ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
)
200 case API_OPENGL_CORE
:
201 /* Section 7.3 (Program Objects) of the OpenGL 4.5 Core Profile spec
204 * "If there is no active program for the vertex or fragment shader
205 * stages, the results of vertex and/or fragment processing will be
206 * undefined. However, this is not an error."
208 * The fragment shader is not tested here because other state (e.g.,
209 * GL_RASTERIZER_DISCARD) affects whether or not we actually care.
211 return ctx
->VertexProgram
._Current
== NULL
;
213 case API_OPENGL_COMPAT
:
214 if (ctx
->VertexProgram
._Current
!= NULL
) {
215 /* Draw regardless of whether or not we have any vertex arrays.
216 * (Ex: could draw a point using a constant vertex pos)
220 /* Draw if we have vertex positions (GL_VERTEX_ARRAY or generic
223 return (!ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
&&
224 !ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_GENERIC0
].Enabled
);
229 unreachable("Invalid API value in check_valid_to_render()");
237 * Print info/data for glDrawArrays(), for debugging.
240 print_draw_arrays(struct gl_context
*ctx
,
241 GLenum mode
, GLint start
, GLsizei count
)
243 const struct gl_vertex_array_object
*vao
= ctx
->Array
.VAO
;
245 printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",
249 for (i
= 0; i
< VERT_ATTRIB_MAX
; ++i
) {
250 const struct gl_array_attributes
*array
= &vao
->VertexAttrib
[i
];
254 const struct gl_vertex_buffer_binding
*binding
=
255 &vao
->BufferBinding
[array
->BufferBindingIndex
];
256 struct gl_buffer_object
*bufObj
= binding
->BufferObj
;
258 printf("attr %s: size %d stride %d enabled %d "
259 "ptr %p Bufobj %u\n",
260 gl_vert_attrib_name((gl_vert_attrib
) i
),
261 array
->Size
, binding
->Stride
, array
->Enabled
,
262 array
->Ptr
, bufObj
->Name
);
264 if (_mesa_is_bufferobj(bufObj
)) {
265 GLubyte
*p
= ctx
->Driver
.MapBufferRange(ctx
, 0, bufObj
->Size
,
266 GL_MAP_READ_BIT
, bufObj
,
268 int offset
= (int) (GLintptr
)
269 _mesa_vertex_attrib_address(array
, binding
);
270 float *f
= (float *) (p
+ offset
);
273 int n
= (count
* binding
->Stride
) / 4;
276 printf(" Data at offset %d:\n", offset
);
277 for (i
= 0; i
< n
; i
++) {
278 printf(" float[%d] = 0x%08x %f\n", i
, k
[i
], f
[i
]);
280 ctx
->Driver
.UnmapBuffer(ctx
, bufObj
, MAP_INTERNAL
);
287 * Set the vbo->exec->inputs[] pointers to point to the enabled
288 * vertex arrays. This depends on the current vertex program/shader
289 * being executed because of whether or not generic vertex arrays
290 * alias the conventional vertex arrays.
291 * For arrays that aren't enabled, we set the input[attrib] pointer
292 * to point at a zero-stride current value "array".
295 recalculate_input_bindings(struct gl_context
*ctx
)
297 struct vbo_context
*vbo
= vbo_context(ctx
);
298 struct vbo_exec_context
*exec
= &vbo
->exec
;
299 const struct gl_array_attributes
*array
= ctx
->Array
.VAO
->VertexAttrib
;
300 struct gl_vertex_array
*vertexAttrib
= ctx
->Array
.VAO
->_VertexAttrib
;
301 const struct gl_vertex_array
**inputs
= &exec
->array
.inputs
[0];
302 GLbitfield64 const_inputs
= 0x0;
305 switch (get_program_mode(ctx
)) {
307 /* When no vertex program is active (or the vertex program is generated
308 * from fixed-function state). We put the material values into the
309 * generic slots. This is the only situation where material values
310 * are available as per-vertex attributes.
312 for (i
= 0; i
< VERT_ATTRIB_FF_MAX
; i
++) {
313 if (array
[VERT_ATTRIB_FF(i
)].Enabled
)
314 inputs
[i
] = &vertexAttrib
[VERT_ATTRIB_FF(i
)];
316 inputs
[i
] = &vbo
->currval
[VBO_ATTRIB_POS
+ i
];
317 const_inputs
|= VERT_BIT(i
);
321 for (i
= 0; i
< MAT_ATTRIB_MAX
; i
++) {
322 inputs
[VERT_ATTRIB_GENERIC(i
)] =
323 &vbo
->currval
[VBO_ATTRIB_MAT_FRONT_AMBIENT
+ i
];
324 const_inputs
|= VERT_BIT_GENERIC(i
);
327 /* Could use just about anything, just to fill in the empty
330 for (i
= MAT_ATTRIB_MAX
; i
< VERT_ATTRIB_GENERIC_MAX
; i
++) {
331 inputs
[VERT_ATTRIB_GENERIC(i
)] =
332 &vbo
->currval
[VBO_ATTRIB_GENERIC0
+ i
];
333 const_inputs
|= VERT_BIT_GENERIC(i
);
338 /* There are no shaders in OpenGL ES 1.x, so this code path should be
339 * impossible to reach. The meta code is careful to not use shaders in
342 assert(ctx
->API
!= API_OPENGLES
);
344 /* In the compatibility profile of desktop OpenGL, the generic[0]
345 * attribute array aliases and overrides the legacy position array.
346 * Otherwise, legacy attributes available in the legacy slots,
347 * generic attributes in the generic slots and materials are not
348 * available as per-vertex attributes.
350 * In all other APIs, only the generic attributes exist, and none of the
351 * slots are considered "magic."
353 if (ctx
->API
== API_OPENGL_COMPAT
) {
354 if (array
[VERT_ATTRIB_GENERIC0
].Enabled
)
355 inputs
[0] = &vertexAttrib
[VERT_ATTRIB_GENERIC0
];
356 else if (array
[VERT_ATTRIB_POS
].Enabled
)
357 inputs
[0] = &vertexAttrib
[VERT_ATTRIB_POS
];
359 inputs
[0] = &vbo
->currval
[VBO_ATTRIB_POS
];
360 const_inputs
|= VERT_BIT_POS
;
363 for (i
= 1; i
< VERT_ATTRIB_FF_MAX
; i
++) {
364 if (array
[VERT_ATTRIB_FF(i
)].Enabled
)
365 inputs
[i
] = &vertexAttrib
[VERT_ATTRIB_FF(i
)];
367 inputs
[i
] = &vbo
->currval
[VBO_ATTRIB_POS
+ i
];
368 const_inputs
|= VERT_BIT_FF(i
);
372 for (i
= 1; i
< VERT_ATTRIB_GENERIC_MAX
; i
++) {
373 if (array
[VERT_ATTRIB_GENERIC(i
)].Enabled
)
374 inputs
[VERT_ATTRIB_GENERIC(i
)] =
375 &vertexAttrib
[VERT_ATTRIB_GENERIC(i
)];
377 inputs
[VERT_ATTRIB_GENERIC(i
)] =
378 &vbo
->currval
[VBO_ATTRIB_GENERIC0
+ i
];
379 const_inputs
|= VERT_BIT_GENERIC(i
);
383 inputs
[VERT_ATTRIB_GENERIC0
] = inputs
[0];
385 /* Other parts of the code assume that inputs[0] through
386 * inputs[VERT_ATTRIB_FF_MAX] will be non-NULL. However, in OpenGL
387 * ES 2.0+ or OpenGL core profile, none of these arrays should ever
390 for (i
= 0; i
< VERT_ATTRIB_FF_MAX
; i
++) {
391 assert(!array
[VERT_ATTRIB_FF(i
)].Enabled
);
393 inputs
[i
] = &vbo
->currval
[VBO_ATTRIB_POS
+ i
];
394 const_inputs
|= VERT_BIT_FF(i
);
397 for (i
= 0; i
< VERT_ATTRIB_GENERIC_MAX
; i
++) {
398 if (array
[VERT_ATTRIB_GENERIC(i
)].Enabled
)
399 inputs
[VERT_ATTRIB_GENERIC(i
)] =
400 &vertexAttrib
[VERT_ATTRIB_GENERIC(i
)];
402 inputs
[VERT_ATTRIB_GENERIC(i
)] =
403 &vbo
->currval
[VBO_ATTRIB_GENERIC0
+ i
];
404 const_inputs
|= VERT_BIT_GENERIC(i
);
412 _mesa_set_varying_vp_inputs(ctx
, VERT_BIT_ALL
& (~const_inputs
));
413 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewArray
;
418 * Examine the enabled vertex arrays to set the exec->array.inputs[] values.
419 * These will point to the arrays to actually use for drawing. Some will
420 * be user-provided arrays, other will be zero-stride const-valued arrays.
421 * Note that this might set the _NEW_VARYING_VP_INPUTS dirty flag so state
422 * validation must be done after this call.
425 vbo_bind_arrays(struct gl_context
*ctx
)
427 struct vbo_context
*vbo
= vbo_context(ctx
);
428 struct vbo_exec_context
*exec
= &vbo
->exec
;
430 vbo_draw_method(vbo
, DRAW_ARRAYS
);
432 if (exec
->array
.recalculate_inputs
) {
433 recalculate_input_bindings(ctx
);
434 exec
->array
.recalculate_inputs
= GL_FALSE
;
436 /* Again... because we may have changed the bitmask of per-vertex varying
437 * attributes. If we regenerate the fixed-function vertex program now
438 * we may be able to prune down the number of vertex attributes which we
439 * need in the shader.
442 /* Setting "validating" to TRUE prevents _mesa_update_state from
443 * invalidating what we just did.
445 exec
->validating
= GL_TRUE
;
446 _mesa_update_state(ctx
);
447 exec
->validating
= GL_FALSE
;
454 * Helper function called by the other DrawArrays() functions below.
455 * This is where we handle primitive restart for drawing non-indexed
456 * arrays. If primitive restart is enabled, it typically means
457 * splitting one DrawArrays() into two.
460 vbo_draw_arrays(struct gl_context
*ctx
, GLenum mode
, GLint start
,
461 GLsizei count
, GLuint numInstances
, GLuint baseInstance
,
464 struct vbo_context
*vbo
= vbo_context(ctx
);
465 struct _mesa_prim prim
[2];
467 if (skip_validated_draw(ctx
))
470 vbo_bind_arrays(ctx
);
472 /* OpenGL 4.5 says that primitive restart is ignored with non-indexed
475 memset(prim
, 0, sizeof(prim
));
479 prim
[0].num_instances
= numInstances
;
480 prim
[0].base_instance
= baseInstance
;
481 prim
[0].draw_id
= drawID
;
482 prim
[0].is_indirect
= 0;
483 prim
[0].start
= start
;
484 prim
[0].count
= count
;
486 vbo
->draw_prims(ctx
, prim
, 1, NULL
,
487 GL_TRUE
, start
, start
+ count
- 1, NULL
, 0, NULL
);
489 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
496 * Execute a glRectf() function.
498 static void GLAPIENTRY
499 vbo_exec_Rectf(GLfloat x1
, GLfloat y1
, GLfloat x2
, GLfloat y2
)
501 GET_CURRENT_CONTEXT(ctx
);
502 ASSERT_OUTSIDE_BEGIN_END(ctx
);
504 CALL_Begin(GET_DISPATCH(), (GL_QUADS
));
505 CALL_Vertex2f(GET_DISPATCH(), (x1
, y1
));
506 CALL_Vertex2f(GET_DISPATCH(), (x2
, y1
));
507 CALL_Vertex2f(GET_DISPATCH(), (x2
, y2
));
508 CALL_Vertex2f(GET_DISPATCH(), (x1
, y2
));
509 CALL_End(GET_DISPATCH(), ());
513 static void GLAPIENTRY
514 vbo_exec_EvalMesh1(GLenum mode
, GLint i1
, GLint i2
)
516 GET_CURRENT_CONTEXT(ctx
);
526 prim
= GL_LINE_STRIP
;
529 _mesa_error(ctx
, GL_INVALID_ENUM
, "glEvalMesh1(mode)");
533 /* No effect if vertex maps disabled.
535 if (!ctx
->Eval
.Map1Vertex4
&& !ctx
->Eval
.Map1Vertex3
)
538 du
= ctx
->Eval
.MapGrid1du
;
539 u
= ctx
->Eval
.MapGrid1u1
+ i1
* du
;
541 CALL_Begin(GET_DISPATCH(), (prim
));
542 for (i
= i1
; i
<= i2
; i
++, u
+= du
) {
543 CALL_EvalCoord1f(GET_DISPATCH(), (u
));
545 CALL_End(GET_DISPATCH(), ());
549 static void GLAPIENTRY
550 vbo_exec_EvalMesh2(GLenum mode
, GLint i1
, GLint i2
, GLint j1
, GLint j2
)
552 GET_CURRENT_CONTEXT(ctx
);
553 GLfloat u
, du
, v
, dv
, v1
, u1
;
562 _mesa_error(ctx
, GL_INVALID_ENUM
, "glEvalMesh2(mode)");
566 /* No effect if vertex maps disabled.
568 if (!ctx
->Eval
.Map2Vertex4
&& !ctx
->Eval
.Map2Vertex3
)
571 du
= ctx
->Eval
.MapGrid2du
;
572 dv
= ctx
->Eval
.MapGrid2dv
;
573 v1
= ctx
->Eval
.MapGrid2v1
+ j1
* dv
;
574 u1
= ctx
->Eval
.MapGrid2u1
+ i1
* du
;
578 CALL_Begin(GET_DISPATCH(), (GL_POINTS
));
579 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
580 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
581 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
584 CALL_End(GET_DISPATCH(), ());
587 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
588 CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP
));
589 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
590 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
592 CALL_End(GET_DISPATCH(), ());
594 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
595 CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP
));
596 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
597 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
599 CALL_End(GET_DISPATCH(), ());
603 for (v
= v1
, j
= j1
; j
< j2
; j
++, v
+= dv
) {
604 CALL_Begin(GET_DISPATCH(), (GL_TRIANGLE_STRIP
));
605 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
606 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
607 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
+ dv
));
609 CALL_End(GET_DISPATCH(), ());
617 * Called from glDrawArrays when in immediate mode (not display list mode).
619 static void GLAPIENTRY
620 vbo_exec_DrawArrays(GLenum mode
, GLint start
, GLsizei count
)
622 GET_CURRENT_CONTEXT(ctx
);
624 if (MESA_VERBOSE
& VERBOSE_DRAW
)
625 _mesa_debug(ctx
, "glDrawArrays(%s, %d, %d)\n",
626 _mesa_enum_to_string(mode
), start
, count
);
628 if (!_mesa_validate_DrawArrays(ctx
, mode
, count
))
632 check_draw_arrays_data(ctx
, start
, count
);
634 vbo_draw_arrays(ctx
, mode
, start
, count
, 1, 0, 0);
637 print_draw_arrays(ctx
, mode
, start
, count
);
642 * Called from glDrawArraysInstanced when in immediate mode (not
643 * display list mode).
645 static void GLAPIENTRY
646 vbo_exec_DrawArraysInstanced(GLenum mode
, GLint start
, GLsizei count
,
647 GLsizei numInstances
)
649 GET_CURRENT_CONTEXT(ctx
);
651 if (MESA_VERBOSE
& VERBOSE_DRAW
)
652 _mesa_debug(ctx
, "glDrawArraysInstanced(%s, %d, %d, %d)\n",
653 _mesa_enum_to_string(mode
), start
, count
, numInstances
);
655 if (!_mesa_validate_DrawArraysInstanced(ctx
, mode
, start
, count
,
660 check_draw_arrays_data(ctx
, start
, count
);
662 vbo_draw_arrays(ctx
, mode
, start
, count
, numInstances
, 0, 0);
665 print_draw_arrays(ctx
, mode
, start
, count
);
670 * Called from glDrawArraysInstancedBaseInstance when in immediate mode.
672 static void GLAPIENTRY
673 vbo_exec_DrawArraysInstancedBaseInstance(GLenum mode
, GLint first
,
674 GLsizei count
, GLsizei numInstances
,
677 GET_CURRENT_CONTEXT(ctx
);
679 if (MESA_VERBOSE
& VERBOSE_DRAW
)
681 "glDrawArraysInstancedBaseInstance(%s, %d, %d, %d, %d)\n",
682 _mesa_enum_to_string(mode
), first
, count
,
683 numInstances
, baseInstance
);
685 if (!_mesa_validate_DrawArraysInstanced(ctx
, mode
, first
, count
,
690 check_draw_arrays_data(ctx
, first
, count
);
692 vbo_draw_arrays(ctx
, mode
, first
, count
, numInstances
, baseInstance
, 0);
695 print_draw_arrays(ctx
, mode
, first
, count
);
700 * Called from glMultiDrawArrays when in immediate mode.
702 static void GLAPIENTRY
703 vbo_exec_MultiDrawArrays(GLenum mode
, const GLint
*first
,
704 const GLsizei
*count
, GLsizei primcount
)
706 GET_CURRENT_CONTEXT(ctx
);
709 if (MESA_VERBOSE
& VERBOSE_DRAW
)
711 "glMultiDrawArrays(%s, %p, %p, %d)\n",
712 _mesa_enum_to_string(mode
), first
, count
, primcount
);
714 if (!_mesa_validate_MultiDrawArrays(ctx
, mode
, count
, primcount
))
717 for (i
= 0; i
< primcount
; i
++) {
720 check_draw_arrays_data(ctx
, first
[i
], count
[i
]);
722 /* The GL_ARB_shader_draw_parameters spec adds the following after the
723 * pseudo-code describing glMultiDrawArrays:
725 * "The index of the draw (<i> in the above pseudo-code) may be
726 * read by a vertex shader as <gl_DrawIDARB>, as described in
729 vbo_draw_arrays(ctx
, mode
, first
[i
], count
[i
], 1, 0, i
);
732 print_draw_arrays(ctx
, mode
, first
[i
], count
[i
]);
740 * Map GL_ELEMENT_ARRAY_BUFFER and print contents.
745 dump_element_buffer(struct gl_context
*ctx
, GLenum type
)
748 ctx
->Driver
.MapBufferRange(ctx
, 0,
749 ctx
->Array
.VAO
->IndexBufferObj
->Size
,
751 ctx
->Array
.VAO
->IndexBufferObj
,
754 case GL_UNSIGNED_BYTE
:
756 const GLubyte
*us
= (const GLubyte
*) map
;
758 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
; i
++) {
759 printf("%02x ", us
[i
]);
766 case GL_UNSIGNED_SHORT
:
768 const GLushort
*us
= (const GLushort
*) map
;
770 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
/ 2; i
++) {
771 printf("%04x ", us
[i
]);
778 case GL_UNSIGNED_INT
:
780 const GLuint
*us
= (const GLuint
*) map
;
782 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
/ 4; i
++) {
783 printf("%08x ", us
[i
]);
794 ctx
->Driver
.UnmapBuffer(ctx
, ctx
->Array
.VAO
->IndexBufferObj
, MAP_INTERNAL
);
800 skip_draw_elements(struct gl_context
*ctx
, GLsizei count
,
801 const GLvoid
*indices
)
806 /* Not using a VBO for indices, so avoid NULL pointer derefs later.
808 if (!_mesa_is_bufferobj(ctx
->Array
.VAO
->IndexBufferObj
) && indices
== NULL
)
811 if (skip_validated_draw(ctx
))
819 * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements.
820 * Do the rendering for a glDrawElements or glDrawRangeElements call after
821 * we've validated buffer bounds, etc.
824 vbo_validated_drawrangeelements(struct gl_context
*ctx
, GLenum mode
,
825 GLboolean index_bounds_valid
,
826 GLuint start
, GLuint end
,
827 GLsizei count
, GLenum type
,
828 const GLvoid
* indices
,
829 GLint basevertex
, GLuint numInstances
,
832 struct vbo_context
*vbo
= vbo_context(ctx
);
833 struct _mesa_index_buffer ib
;
834 struct _mesa_prim prim
[1];
836 if (skip_draw_elements(ctx
, count
, indices
))
839 vbo_bind_arrays(ctx
);
843 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
852 prim
[0].count
= count
;
854 prim
[0].is_indirect
= 0;
855 prim
[0].basevertex
= basevertex
;
856 prim
[0].num_instances
= numInstances
;
857 prim
[0].base_instance
= baseInstance
;
860 /* Need to give special consideration to rendering a range of
861 * indices starting somewhere above zero. Typically the
862 * application is issuing multiple DrawRangeElements() to draw
863 * successive primitives layed out linearly in the vertex arrays.
864 * Unless the vertex arrays are all in a VBO (or locked as with
865 * CVA), the OpenGL semantics imply that we need to re-read or
866 * re-upload the vertex data on each draw call.
868 * In the case of hardware tnl, we want to avoid starting the
869 * upload at zero, as it will mean every draw call uploads an
870 * increasing amount of not-used vertex data. Worse - in the
871 * software tnl module, all those vertices might be transformed and
872 * lit but never rendered.
874 * If we just upload or transform the vertices in start..end,
875 * however, the indices will be incorrect.
877 * At this level, we don't know exactly what the requirements of
878 * the backend are going to be, though it will likely boil down to
881 * 1) Do nothing, everything is in a VBO and is processed once
884 * 2) Adjust the indices and vertex arrays so that start becomes
887 * Rather than doing anything here, I'll provide a helper function
888 * for the latter case elsewhere.
891 vbo
->draw_prims(ctx
, prim
, 1, &ib
,
892 index_bounds_valid
, start
, end
, NULL
, 0, NULL
);
894 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
901 * Called by glDrawRangeElementsBaseVertex() in immediate mode.
903 static void GLAPIENTRY
904 vbo_exec_DrawRangeElementsBaseVertex(GLenum mode
, GLuint start
, GLuint end
,
905 GLsizei count
, GLenum type
,
906 const GLvoid
* indices
, GLint basevertex
)
908 static GLuint warnCount
= 0;
909 GLboolean index_bounds_valid
= GL_TRUE
;
911 /* This is only useful to catch invalid values in the "end" parameter
914 GLuint max_element
= 2 * 1000 * 1000 * 1000; /* just a big number */
916 GET_CURRENT_CONTEXT(ctx
);
918 if (MESA_VERBOSE
& VERBOSE_DRAW
)
920 "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n",
921 _mesa_enum_to_string(mode
), start
, end
, count
,
922 _mesa_enum_to_string(type
), indices
, basevertex
);
924 if (!_mesa_validate_DrawRangeElements(ctx
, mode
, start
, end
, count
,
928 if ((int) end
+ basevertex
< 0 || start
+ basevertex
>= max_element
) {
929 /* The application requested we draw using a range of indices that's
930 * outside the bounds of the current VBO. This is invalid and appears
931 * to give undefined results. The safest thing to do is to simply
932 * ignore the range, in case the application botched their range tracking
933 * but did provide valid indices. Also issue a warning indicating that
934 * the application is broken.
936 if (warnCount
++ < 10) {
937 _mesa_warning(ctx
, "glDrawRangeElements(start %u, end %u, "
938 "basevertex %d, count %d, type 0x%x, indices=%p):\n"
939 "\trange is outside VBO bounds (max=%u); ignoring.\n"
940 "\tThis should be fixed in the application.",
941 start
, end
, basevertex
, count
, type
, indices
,
944 index_bounds_valid
= GL_FALSE
;
947 /* NOTE: It's important that 'end' is a reasonable value.
948 * in _tnl_draw_prims(), we use end to determine how many vertices
949 * to transform. If it's too large, we can unnecessarily split prims
950 * or we can read/write out of memory in several different places!
953 /* Catch/fix some potential user errors */
954 if (type
== GL_UNSIGNED_BYTE
) {
955 start
= MIN2(start
, 0xff);
956 end
= MIN2(end
, 0xff);
958 else if (type
== GL_UNSIGNED_SHORT
) {
959 start
= MIN2(start
, 0xffff);
960 end
= MIN2(end
, 0xffff);
964 printf("glDraw[Range]Elements{,BaseVertex}"
965 "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, "
967 start
, end
, type
, count
,
968 ctx
->Array
.VAO
->IndexBufferObj
->Name
, basevertex
);
971 if ((int) start
+ basevertex
< 0 || end
+ basevertex
>= max_element
)
972 index_bounds_valid
= GL_FALSE
;
975 check_draw_elements_data(ctx
, count
, type
, indices
, basevertex
);
977 (void) check_draw_elements_data
;
980 vbo_validated_drawrangeelements(ctx
, mode
, index_bounds_valid
, start
, end
,
981 count
, type
, indices
, basevertex
, 1, 0);
986 * Called by glDrawRangeElements() in immediate mode.
988 static void GLAPIENTRY
989 vbo_exec_DrawRangeElements(GLenum mode
, GLuint start
, GLuint end
,
990 GLsizei count
, GLenum type
, const GLvoid
* indices
)
992 if (MESA_VERBOSE
& VERBOSE_DRAW
) {
993 GET_CURRENT_CONTEXT(ctx
);
995 "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n",
996 _mesa_enum_to_string(mode
), start
, end
, count
,
997 _mesa_enum_to_string(type
), indices
);
1000 vbo_exec_DrawRangeElementsBaseVertex(mode
, start
, end
, count
, type
,
1006 * Called by glDrawElements() in immediate mode.
1008 static void GLAPIENTRY
1009 vbo_exec_DrawElements(GLenum mode
, GLsizei count
, GLenum type
,
1010 const GLvoid
* indices
)
1012 GET_CURRENT_CONTEXT(ctx
);
1014 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1015 _mesa_debug(ctx
, "glDrawElements(%s, %u, %s, %p)\n",
1016 _mesa_enum_to_string(mode
), count
,
1017 _mesa_enum_to_string(type
), indices
);
1019 if (!_mesa_validate_DrawElements(ctx
, mode
, count
, type
, indices
))
1022 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, ~0, ~0,
1023 count
, type
, indices
, 0, 1, 0);
1028 * Called by glDrawElementsBaseVertex() in immediate mode.
1030 static void GLAPIENTRY
1031 vbo_exec_DrawElementsBaseVertex(GLenum mode
, GLsizei count
, GLenum type
,
1032 const GLvoid
* indices
, GLint basevertex
)
1034 GET_CURRENT_CONTEXT(ctx
);
1036 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1037 _mesa_debug(ctx
, "glDrawElementsBaseVertex(%s, %d, %s, %p, %d)\n",
1038 _mesa_enum_to_string(mode
), count
,
1039 _mesa_enum_to_string(type
), indices
, basevertex
);
1041 if (!_mesa_validate_DrawElements(ctx
, mode
, count
, type
, indices
))
1044 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, ~0, ~0,
1045 count
, type
, indices
, basevertex
, 1, 0);
1050 * Called by glDrawElementsInstanced() in immediate mode.
1052 static void GLAPIENTRY
1053 vbo_exec_DrawElementsInstanced(GLenum mode
, GLsizei count
, GLenum type
,
1054 const GLvoid
* indices
, GLsizei numInstances
)
1056 GET_CURRENT_CONTEXT(ctx
);
1058 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1059 _mesa_debug(ctx
, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n",
1060 _mesa_enum_to_string(mode
), count
,
1061 _mesa_enum_to_string(type
), indices
, numInstances
);
1063 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
, indices
,
1067 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, ~0, ~0,
1068 count
, type
, indices
, 0, numInstances
, 0);
1073 * Called by glDrawElementsInstancedBaseVertex() in immediate mode.
1075 static void GLAPIENTRY
1076 vbo_exec_DrawElementsInstancedBaseVertex(GLenum mode
, GLsizei count
,
1077 GLenum type
, const GLvoid
* indices
,
1078 GLsizei numInstances
,
1081 GET_CURRENT_CONTEXT(ctx
);
1083 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1085 "glDrawElementsInstancedBaseVertex(%s, %d, %s, %p, %d; %d)\n",
1086 _mesa_enum_to_string(mode
), count
,
1087 _mesa_enum_to_string(type
), indices
,
1088 numInstances
, basevertex
);
1090 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
, indices
,
1094 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, ~0, ~0,
1095 count
, type
, indices
,
1096 basevertex
, numInstances
, 0);
1101 * Called by glDrawElementsInstancedBaseInstance() in immediate mode.
1103 static void GLAPIENTRY
1104 vbo_exec_DrawElementsInstancedBaseInstance(GLenum mode
, GLsizei count
,
1106 const GLvoid
*indices
,
1107 GLsizei numInstances
,
1108 GLuint baseInstance
)
1110 GET_CURRENT_CONTEXT(ctx
);
1112 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1114 "glDrawElementsInstancedBaseInstance"
1115 "(%s, %d, %s, %p, %d, %d)\n",
1116 _mesa_enum_to_string(mode
), count
,
1117 _mesa_enum_to_string(type
), indices
,
1118 numInstances
, baseInstance
);
1120 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
, indices
,
1124 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, ~0, ~0,
1125 count
, type
, indices
, 0, numInstances
,
1131 * Called by glDrawElementsInstancedBaseVertexBaseInstance() in immediate mode.
1133 static void GLAPIENTRY
1134 vbo_exec_DrawElementsInstancedBaseVertexBaseInstance(GLenum mode
,
1137 const GLvoid
*indices
,
1138 GLsizei numInstances
,
1140 GLuint baseInstance
)
1142 GET_CURRENT_CONTEXT(ctx
);
1144 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1146 "glDrawElementsInstancedBaseVertexBaseInstance"
1147 "(%s, %d, %s, %p, %d, %d, %d)\n",
1148 _mesa_enum_to_string(mode
), count
,
1149 _mesa_enum_to_string(type
), indices
,
1150 numInstances
, basevertex
, baseInstance
);
1152 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
, indices
,
1156 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, ~0, ~0,
1157 count
, type
, indices
, basevertex
,
1158 numInstances
, baseInstance
);
1163 * Inner support for both _mesa_MultiDrawElements() and
1164 * _mesa_MultiDrawRangeElements().
1165 * This does the actual rendering after we've checked array indexes, etc.
1168 vbo_validated_multidrawelements(struct gl_context
*ctx
, GLenum mode
,
1169 const GLsizei
*count
, GLenum type
,
1170 const GLvoid
* const *indices
,
1171 GLsizei primcount
, const GLint
*basevertex
)
1173 struct vbo_context
*vbo
= vbo_context(ctx
);
1174 struct _mesa_index_buffer ib
;
1175 struct _mesa_prim
*prim
;
1176 unsigned int index_type_size
= vbo_sizeof_ib_type(type
);
1177 uintptr_t min_index_ptr
, max_index_ptr
;
1178 GLboolean fallback
= GL_FALSE
;
1184 prim
= calloc(primcount
, sizeof(*prim
));
1186 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glMultiDrawElements");
1190 vbo_bind_arrays(ctx
);
1192 min_index_ptr
= (uintptr_t) indices
[0];
1194 for (i
= 0; i
< primcount
; i
++) {
1195 min_index_ptr
= MIN2(min_index_ptr
, (uintptr_t) indices
[i
]);
1196 max_index_ptr
= MAX2(max_index_ptr
, (uintptr_t) indices
[i
] +
1197 index_type_size
* count
[i
]);
1200 /* Check if we can handle this thing as a bunch of index offsets from the
1201 * same index pointer. If we can't, then we have to fall back to doing
1202 * a draw_prims per primitive.
1203 * Check that the difference between each prim's indexes is a multiple of
1204 * the index/element size.
1206 if (index_type_size
!= 1) {
1207 for (i
= 0; i
< primcount
; i
++) {
1208 if ((((uintptr_t) indices
[i
] - min_index_ptr
) % index_type_size
) !=
1216 /* Draw primitives individually if one count is zero, so we can easily skip
1219 for (i
= 0; i
< primcount
; i
++) {
1220 if (count
[i
] == 0) {
1226 /* If the index buffer isn't in a VBO, then treating the application's
1227 * subranges of the index buffer as one large index buffer may lead to
1228 * us reading unmapped memory.
1230 if (!_mesa_is_bufferobj(ctx
->Array
.VAO
->IndexBufferObj
))
1234 ib
.count
= (max_index_ptr
- min_index_ptr
) / index_type_size
;
1236 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1237 ib
.ptr
= (void *) min_index_ptr
;
1239 for (i
= 0; i
< primcount
; i
++) {
1240 prim
[i
].begin
= (i
== 0);
1241 prim
[i
].end
= (i
== primcount
- 1);
1244 prim
[i
].mode
= mode
;
1246 ((uintptr_t) indices
[i
] - min_index_ptr
) / index_type_size
;
1247 prim
[i
].count
= count
[i
];
1248 prim
[i
].indexed
= 1;
1249 prim
[i
].num_instances
= 1;
1250 prim
[i
].base_instance
= 0;
1251 prim
[i
].draw_id
= i
;
1252 prim
[i
].is_indirect
= 0;
1253 if (basevertex
!= NULL
)
1254 prim
[i
].basevertex
= basevertex
[i
];
1256 prim
[i
].basevertex
= 0;
1259 vbo
->draw_prims(ctx
, prim
, primcount
, &ib
,
1260 false, ~0, ~0, NULL
, 0, NULL
);
1263 /* render one prim at a time */
1264 for (i
= 0; i
< primcount
; i
++) {
1267 ib
.count
= count
[i
];
1269 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1270 ib
.ptr
= indices
[i
];
1276 prim
[0].mode
= mode
;
1278 prim
[0].count
= count
[i
];
1279 prim
[0].indexed
= 1;
1280 prim
[0].num_instances
= 1;
1281 prim
[0].base_instance
= 0;
1282 prim
[0].draw_id
= i
;
1283 prim
[0].is_indirect
= 0;
1284 if (basevertex
!= NULL
)
1285 prim
[0].basevertex
= basevertex
[i
];
1287 prim
[0].basevertex
= 0;
1289 vbo
->draw_prims(ctx
, prim
, 1, &ib
, false, ~0, ~0, NULL
, 0, NULL
);
1295 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
1301 static void GLAPIENTRY
1302 vbo_exec_MultiDrawElements(GLenum mode
,
1303 const GLsizei
*count
, GLenum type
,
1304 const GLvoid
* const *indices
, GLsizei primcount
)
1306 GET_CURRENT_CONTEXT(ctx
);
1308 if (!_mesa_validate_MultiDrawElements(ctx
, mode
, count
, type
, indices
,
1312 if (skip_validated_draw(ctx
))
1315 vbo_validated_multidrawelements(ctx
, mode
, count
, type
, indices
, primcount
,
1320 static void GLAPIENTRY
1321 vbo_exec_MultiDrawElementsBaseVertex(GLenum mode
,
1322 const GLsizei
*count
, GLenum type
,
1323 const GLvoid
* const *indices
,
1325 const GLsizei
*basevertex
)
1327 GET_CURRENT_CONTEXT(ctx
);
1329 if (!_mesa_validate_MultiDrawElements(ctx
, mode
, count
, type
, indices
,
1333 if (skip_validated_draw(ctx
))
1336 vbo_validated_multidrawelements(ctx
, mode
, count
, type
, indices
, primcount
,
1342 vbo_draw_transform_feedback(struct gl_context
*ctx
, GLenum mode
,
1343 struct gl_transform_feedback_object
*obj
,
1344 GLuint stream
, GLuint numInstances
)
1346 struct vbo_context
*vbo
= vbo_context(ctx
);
1347 struct _mesa_prim prim
[2];
1349 if (!_mesa_validate_DrawTransformFeedback(ctx
, mode
, obj
, stream
,
1354 if (ctx
->Driver
.GetTransformFeedbackVertexCount
&&
1355 (ctx
->Const
.AlwaysUseGetTransformFeedbackVertexCount
||
1356 !_mesa_all_varyings_in_vbos(ctx
->Array
.VAO
))) {
1358 ctx
->Driver
.GetTransformFeedbackVertexCount(ctx
, obj
, stream
);
1359 vbo_draw_arrays(ctx
, mode
, 0, n
, numInstances
, 0, 0);
1363 if (skip_validated_draw(ctx
))
1366 vbo_bind_arrays(ctx
);
1368 /* init most fields to zero */
1369 memset(prim
, 0, sizeof(prim
));
1372 prim
[0].mode
= mode
;
1373 prim
[0].num_instances
= numInstances
;
1374 prim
[0].base_instance
= 0;
1375 prim
[0].is_indirect
= 0;
1377 /* Maybe we should do some primitive splitting for primitive restart
1378 * (like in DrawArrays), but we have no way to know how many vertices
1379 * will be rendered. */
1381 vbo
->draw_prims(ctx
, prim
, 1, NULL
, GL_FALSE
, ~0, ~0, obj
, stream
, NULL
);
1383 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
1390 * Like DrawArrays, but take the count from a transform feedback object.
1391 * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc.
1392 * \param name the transform feedback object
1393 * User still has to setup of the vertex attribute info with
1394 * glVertexPointer, glColorPointer, etc.
1395 * Part of GL_ARB_transform_feedback2.
1397 static void GLAPIENTRY
1398 vbo_exec_DrawTransformFeedback(GLenum mode
, GLuint name
)
1400 GET_CURRENT_CONTEXT(ctx
);
1401 struct gl_transform_feedback_object
*obj
=
1402 _mesa_lookup_transform_feedback_object(ctx
, name
);
1404 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1405 _mesa_debug(ctx
, "glDrawTransformFeedback(%s, %d)\n",
1406 _mesa_enum_to_string(mode
), name
);
1408 vbo_draw_transform_feedback(ctx
, mode
, obj
, 0, 1);
1412 static void GLAPIENTRY
1413 vbo_exec_DrawTransformFeedbackStream(GLenum mode
, GLuint name
, GLuint stream
)
1415 GET_CURRENT_CONTEXT(ctx
);
1416 struct gl_transform_feedback_object
*obj
=
1417 _mesa_lookup_transform_feedback_object(ctx
, name
);
1419 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1420 _mesa_debug(ctx
, "glDrawTransformFeedbackStream(%s, %u, %u)\n",
1421 _mesa_enum_to_string(mode
), name
, stream
);
1423 vbo_draw_transform_feedback(ctx
, mode
, obj
, stream
, 1);
1427 static void GLAPIENTRY
1428 vbo_exec_DrawTransformFeedbackInstanced(GLenum mode
, GLuint name
,
1431 GET_CURRENT_CONTEXT(ctx
);
1432 struct gl_transform_feedback_object
*obj
=
1433 _mesa_lookup_transform_feedback_object(ctx
, name
);
1435 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1436 _mesa_debug(ctx
, "glDrawTransformFeedbackInstanced(%s, %d)\n",
1437 _mesa_enum_to_string(mode
), name
);
1439 vbo_draw_transform_feedback(ctx
, mode
, obj
, 0, primcount
);
1443 static void GLAPIENTRY
1444 vbo_exec_DrawTransformFeedbackStreamInstanced(GLenum mode
, GLuint name
,
1448 GET_CURRENT_CONTEXT(ctx
);
1449 struct gl_transform_feedback_object
*obj
=
1450 _mesa_lookup_transform_feedback_object(ctx
, name
);
1452 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1453 _mesa_debug(ctx
, "glDrawTransformFeedbackStreamInstanced"
1454 "(%s, %u, %u, %i)\n",
1455 _mesa_enum_to_string(mode
), name
, stream
, primcount
);
1457 vbo_draw_transform_feedback(ctx
, mode
, obj
, stream
, primcount
);
1462 vbo_validated_drawarraysindirect(struct gl_context
*ctx
,
1463 GLenum mode
, const GLvoid
*indirect
)
1465 struct vbo_context
*vbo
= vbo_context(ctx
);
1467 vbo_bind_arrays(ctx
);
1469 vbo
->draw_indirect_prims(ctx
, mode
,
1470 ctx
->DrawIndirectBuffer
, (GLsizeiptr
) indirect
,
1471 1 /* draw_count */ , 16 /* stride */ ,
1474 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1480 vbo_validated_multidrawarraysindirect(struct gl_context
*ctx
,
1482 const GLvoid
*indirect
,
1483 GLsizei primcount
, GLsizei stride
)
1485 struct vbo_context
*vbo
= vbo_context(ctx
);
1486 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1491 vbo_bind_arrays(ctx
);
1493 vbo
->draw_indirect_prims(ctx
, mode
, ctx
->DrawIndirectBuffer
, offset
,
1494 primcount
, stride
, NULL
, 0, NULL
);
1496 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1502 vbo_validated_drawelementsindirect(struct gl_context
*ctx
,
1503 GLenum mode
, GLenum type
,
1504 const GLvoid
*indirect
)
1506 struct vbo_context
*vbo
= vbo_context(ctx
);
1507 struct _mesa_index_buffer ib
;
1509 vbo_bind_arrays(ctx
);
1511 ib
.count
= 0; /* unknown */
1513 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1516 vbo
->draw_indirect_prims(ctx
, mode
,
1517 ctx
->DrawIndirectBuffer
, (GLsizeiptr
) indirect
,
1518 1 /* draw_count */ , 20 /* stride */ ,
1521 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1527 vbo_validated_multidrawelementsindirect(struct gl_context
*ctx
,
1528 GLenum mode
, GLenum type
,
1529 const GLvoid
*indirect
,
1530 GLsizei primcount
, GLsizei stride
)
1532 struct vbo_context
*vbo
= vbo_context(ctx
);
1533 struct _mesa_index_buffer ib
;
1534 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1539 vbo_bind_arrays(ctx
);
1541 /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
1543 ib
.count
= 0; /* unknown */
1545 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1548 vbo
->draw_indirect_prims(ctx
, mode
,
1549 ctx
->DrawIndirectBuffer
, offset
,
1550 primcount
, stride
, NULL
, 0, &ib
);
1552 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1558 * Like [Multi]DrawArrays/Elements, but they take most arguments from
1561 static void GLAPIENTRY
1562 vbo_exec_DrawArraysIndirect(GLenum mode
, const GLvoid
*indirect
)
1564 GET_CURRENT_CONTEXT(ctx
);
1566 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1567 _mesa_debug(ctx
, "glDrawArraysIndirect(%s, %p)\n",
1568 _mesa_enum_to_string(mode
), indirect
);
1570 if (!_mesa_validate_DrawArraysIndirect(ctx
, mode
, indirect
))
1573 if (skip_validated_draw(ctx
))
1576 vbo_validated_drawarraysindirect(ctx
, mode
, indirect
);
1580 static void GLAPIENTRY
1581 vbo_exec_DrawElementsIndirect(GLenum mode
, GLenum type
, const GLvoid
*indirect
)
1583 GET_CURRENT_CONTEXT(ctx
);
1585 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1586 _mesa_debug(ctx
, "glDrawElementsIndirect(%s, %s, %p)\n",
1587 _mesa_enum_to_string(mode
),
1588 _mesa_enum_to_string(type
), indirect
);
1590 if (!_mesa_validate_DrawElementsIndirect(ctx
, mode
, type
, indirect
))
1593 if (skip_validated_draw(ctx
))
1596 vbo_validated_drawelementsindirect(ctx
, mode
, type
, indirect
);
1600 static void GLAPIENTRY
1601 vbo_exec_MultiDrawArraysIndirect(GLenum mode
, const GLvoid
*indirect
,
1602 GLsizei primcount
, GLsizei stride
)
1604 GET_CURRENT_CONTEXT(ctx
);
1606 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1607 _mesa_debug(ctx
, "glMultiDrawArraysIndirect(%s, %p, %i, %i)\n",
1608 _mesa_enum_to_string(mode
), indirect
, primcount
, stride
);
1610 /* If <stride> is zero, the array elements are treated as tightly packed. */
1612 stride
= 4 * sizeof(GLuint
); /* sizeof(DrawArraysIndirectCommand) */
1614 if (!_mesa_validate_MultiDrawArraysIndirect(ctx
, mode
, indirect
,
1618 if (skip_validated_draw(ctx
))
1621 vbo_validated_multidrawarraysindirect(ctx
, mode
, indirect
,
1626 static void GLAPIENTRY
1627 vbo_exec_MultiDrawElementsIndirect(GLenum mode
, GLenum type
,
1628 const GLvoid
*indirect
,
1629 GLsizei primcount
, GLsizei stride
)
1631 GET_CURRENT_CONTEXT(ctx
);
1633 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1634 _mesa_debug(ctx
, "glMultiDrawElementsIndirect(%s, %s, %p, %i, %i)\n",
1635 _mesa_enum_to_string(mode
),
1636 _mesa_enum_to_string(type
), indirect
, primcount
, stride
);
1638 /* If <stride> is zero, the array elements are treated as tightly packed. */
1640 stride
= 5 * sizeof(GLuint
); /* sizeof(DrawElementsIndirectCommand) */
1642 if (!_mesa_validate_MultiDrawElementsIndirect(ctx
, mode
, type
, indirect
,
1646 if (skip_validated_draw(ctx
))
1649 vbo_validated_multidrawelementsindirect(ctx
, mode
, type
, indirect
,
1655 vbo_validated_multidrawarraysindirectcount(struct gl_context
*ctx
,
1659 GLsizei maxdrawcount
,
1662 struct vbo_context
*vbo
= vbo_context(ctx
);
1663 GLsizeiptr offset
= indirect
;
1665 if (maxdrawcount
== 0)
1668 vbo_bind_arrays(ctx
);
1670 vbo
->draw_indirect_prims(ctx
, mode
,
1671 ctx
->DrawIndirectBuffer
, offset
,
1672 maxdrawcount
, stride
,
1673 ctx
->ParameterBuffer
, drawcount
, NULL
);
1675 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1681 vbo_validated_multidrawelementsindirectcount(struct gl_context
*ctx
,
1682 GLenum mode
, GLenum type
,
1685 GLsizei maxdrawcount
,
1688 struct vbo_context
*vbo
= vbo_context(ctx
);
1689 struct _mesa_index_buffer ib
;
1690 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1692 if (maxdrawcount
== 0)
1695 vbo_bind_arrays(ctx
);
1697 /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
1699 ib
.count
= 0; /* unknown */
1701 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1704 vbo
->draw_indirect_prims(ctx
, mode
,
1705 ctx
->DrawIndirectBuffer
, offset
,
1706 maxdrawcount
, stride
,
1707 ctx
->ParameterBuffer
, drawcount
, &ib
);
1709 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1714 static void GLAPIENTRY
1715 vbo_exec_MultiDrawArraysIndirectCount(GLenum mode
, GLintptr indirect
,
1717 GLsizei maxdrawcount
, GLsizei stride
)
1719 GET_CURRENT_CONTEXT(ctx
);
1721 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1722 _mesa_debug(ctx
, "glMultiDrawArraysIndirectCountARB"
1723 "(%s, %lx, %lx, %i, %i)\n",
1724 _mesa_enum_to_string(mode
),
1725 (unsigned long) indirect
, (unsigned long) drawcount
,
1726 maxdrawcount
, stride
);
1728 /* If <stride> is zero, the array elements are treated as tightly packed. */
1730 stride
= 4 * sizeof(GLuint
); /* sizeof(DrawArraysIndirectCommand) */
1732 if (!_mesa_validate_MultiDrawArraysIndirectCount(ctx
, mode
,
1733 indirect
, drawcount
,
1734 maxdrawcount
, stride
))
1737 if (skip_validated_draw(ctx
))
1740 vbo_validated_multidrawarraysindirectcount(ctx
, mode
, indirect
, drawcount
,
1741 maxdrawcount
, stride
);
1745 static void GLAPIENTRY
1746 vbo_exec_MultiDrawElementsIndirectCount(GLenum mode
, GLenum type
,
1747 GLintptr indirect
, GLintptr drawcount
,
1748 GLsizei maxdrawcount
, GLsizei stride
)
1750 GET_CURRENT_CONTEXT(ctx
);
1752 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1753 _mesa_debug(ctx
, "glMultiDrawElementsIndirectCountARB"
1754 "(%s, %s, %lx, %lx, %i, %i)\n",
1755 _mesa_enum_to_string(mode
), _mesa_enum_to_string(type
),
1756 (unsigned long) indirect
, (unsigned long) drawcount
,
1757 maxdrawcount
, stride
);
1759 /* If <stride> is zero, the array elements are treated as tightly packed. */
1761 stride
= 5 * sizeof(GLuint
); /* sizeof(DrawElementsIndirectCommand) */
1763 if (!_mesa_validate_MultiDrawElementsIndirectCount(ctx
, mode
, type
,
1764 indirect
, drawcount
,
1765 maxdrawcount
, stride
))
1768 if (skip_validated_draw(ctx
))
1771 vbo_validated_multidrawelementsindirectcount(ctx
, mode
, type
, indirect
,
1772 drawcount
, maxdrawcount
,
1778 * Initialize the dispatch table with the VBO functions for drawing.
1781 vbo_initialize_exec_dispatch(const struct gl_context
*ctx
,
1782 struct _glapi_table
*exec
)
1784 SET_DrawArrays(exec
, vbo_exec_DrawArrays
);
1785 SET_DrawElements(exec
, vbo_exec_DrawElements
);
1787 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1788 SET_DrawRangeElements(exec
, vbo_exec_DrawRangeElements
);
1791 SET_MultiDrawArrays(exec
, vbo_exec_MultiDrawArrays
);
1792 SET_MultiDrawElementsEXT(exec
, vbo_exec_MultiDrawElements
);
1794 if (ctx
->API
== API_OPENGL_COMPAT
) {
1795 SET_Rectf(exec
, vbo_exec_Rectf
);
1796 SET_EvalMesh1(exec
, vbo_exec_EvalMesh1
);
1797 SET_EvalMesh2(exec
, vbo_exec_EvalMesh2
);
1800 if (ctx
->API
!= API_OPENGLES
&&
1801 ctx
->Extensions
.ARB_draw_elements_base_vertex
) {
1802 SET_DrawElementsBaseVertex(exec
, vbo_exec_DrawElementsBaseVertex
);
1803 SET_MultiDrawElementsBaseVertex(exec
,
1804 vbo_exec_MultiDrawElementsBaseVertex
);
1806 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1807 SET_DrawRangeElementsBaseVertex(exec
,
1808 vbo_exec_DrawRangeElementsBaseVertex
);
1809 SET_DrawElementsInstancedBaseVertex(exec
,
1810 vbo_exec_DrawElementsInstancedBaseVertex
);
1814 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1815 SET_DrawArraysInstancedBaseInstance(exec
,
1816 vbo_exec_DrawArraysInstancedBaseInstance
);
1817 SET_DrawElementsInstancedBaseInstance(exec
,
1818 vbo_exec_DrawElementsInstancedBaseInstance
);
1819 SET_DrawElementsInstancedBaseVertexBaseInstance(exec
,
1820 vbo_exec_DrawElementsInstancedBaseVertexBaseInstance
);
1823 if (ctx
->API
== API_OPENGL_CORE
|| _mesa_is_gles31(ctx
)) {
1824 SET_DrawArraysIndirect(exec
, vbo_exec_DrawArraysIndirect
);
1825 SET_DrawElementsIndirect(exec
, vbo_exec_DrawElementsIndirect
);
1828 if (ctx
->API
== API_OPENGL_CORE
) {
1829 SET_MultiDrawArraysIndirect(exec
, vbo_exec_MultiDrawArraysIndirect
);
1830 SET_MultiDrawElementsIndirect(exec
, vbo_exec_MultiDrawElementsIndirect
);
1831 SET_MultiDrawArraysIndirectCountARB(exec
,
1832 vbo_exec_MultiDrawArraysIndirectCount
);
1833 SET_MultiDrawElementsIndirectCountARB(exec
,
1834 vbo_exec_MultiDrawElementsIndirectCount
);
1837 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1838 SET_DrawArraysInstancedARB(exec
, vbo_exec_DrawArraysInstanced
);
1839 SET_DrawElementsInstancedARB(exec
, vbo_exec_DrawElementsInstanced
);
1842 if (_mesa_is_desktop_gl(ctx
)) {
1843 SET_DrawTransformFeedback(exec
, vbo_exec_DrawTransformFeedback
);
1844 SET_DrawTransformFeedbackStream(exec
,
1845 vbo_exec_DrawTransformFeedbackStream
);
1846 SET_DrawTransformFeedbackInstanced(exec
,
1847 vbo_exec_DrawTransformFeedbackInstanced
);
1848 SET_DrawTransformFeedbackStreamInstanced(exec
,
1849 vbo_exec_DrawTransformFeedbackStreamInstanced
);
1856 * The following functions are only used for OpenGL ES 1/2 support.
1857 * And some aren't even supported (yet) in ES 1/2.
1862 _mesa_DrawArrays(GLenum mode
, GLint first
, GLsizei count
)
1864 vbo_exec_DrawArrays(mode
, first
, count
);
1869 _mesa_DrawArraysInstanced(GLenum mode
, GLint first
, GLsizei count
,
1872 vbo_exec_DrawArraysInstanced(mode
, first
, count
, primcount
);
1877 _mesa_DrawElements(GLenum mode
, GLsizei count
, GLenum type
,
1878 const GLvoid
*indices
)
1880 vbo_exec_DrawElements(mode
, count
, type
, indices
);
1885 _mesa_DrawElementsBaseVertex(GLenum mode
, GLsizei count
, GLenum type
,
1886 const GLvoid
*indices
, GLint basevertex
)
1888 vbo_exec_DrawElementsBaseVertex(mode
, count
, type
, indices
, basevertex
);
1893 _mesa_DrawRangeElements(GLenum mode
, GLuint start
, GLuint end
, GLsizei count
,
1894 GLenum type
, const GLvoid
* indices
)
1896 vbo_exec_DrawRangeElements(mode
, start
, end
, count
, type
, indices
);
1901 _mesa_DrawRangeElementsBaseVertex(GLenum mode
, GLuint start
, GLuint end
,
1902 GLsizei count
, GLenum type
,
1903 const GLvoid
*indices
, GLint basevertex
)
1905 vbo_exec_DrawRangeElementsBaseVertex(mode
, start
, end
, count
, type
,
1906 indices
, basevertex
);
1911 _mesa_MultiDrawElementsEXT(GLenum mode
, const GLsizei
*count
, GLenum type
,
1912 const GLvoid
** indices
, GLsizei primcount
)
1914 vbo_exec_MultiDrawElements(mode
, count
, type
, indices
, primcount
);
1919 _mesa_MultiDrawElementsBaseVertex(GLenum mode
,
1920 const GLsizei
*count
, GLenum type
,
1921 const GLvoid
**indices
, GLsizei primcount
,
1922 const GLint
*basevertex
)
1924 vbo_exec_MultiDrawElementsBaseVertex(mode
, count
, type
, indices
,
1925 primcount
, basevertex
);
1930 _mesa_DrawTransformFeedback(GLenum mode
, GLuint name
)
1932 vbo_exec_DrawTransformFeedback(mode
, name
);