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_private.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 sizeof_ib_type(GLenum type
)
120 case GL_UNSIGNED_INT
:
121 return sizeof(GLuint
);
122 case GL_UNSIGNED_SHORT
:
123 return sizeof(GLushort
);
124 case GL_UNSIGNED_BYTE
:
125 return sizeof(GLubyte
);
127 assert(!"unsupported index data type");
128 /* In case assert is turned off */
134 * Examine the array's data for NaNs, etc.
135 * For debug purposes; not normally used.
138 check_draw_elements_data(struct gl_context
*ctx
, GLsizei count
,
139 GLenum elemType
, const void *elements
,
142 struct gl_vertex_array_object
*vao
= ctx
->Array
.VAO
;
147 if (_mesa_is_bufferobj(vao
->IndexBufferObj
)) {
148 elemMap
= ctx
->Driver
.MapBufferRange(ctx
, 0,
149 vao
->IndexBufferObj
->Size
,
151 vao
->IndexBufferObj
, MAP_INTERNAL
);
152 elements
= ADD_POINTERS(elements
, elemMap
);
155 for (i
= 0; i
< count
; i
++) {
160 case GL_UNSIGNED_BYTE
:
161 j
= ((const GLubyte
*) elements
)[i
];
163 case GL_UNSIGNED_SHORT
:
164 j
= ((const GLushort
*) elements
)[i
];
166 case GL_UNSIGNED_INT
:
167 j
= ((const GLuint
*) elements
)[i
];
170 unreachable("Unexpected index buffer type");
173 /* check element j of each enabled array */
174 for (k
= 0; k
< VERT_ATTRIB_MAX
; k
++) {
175 check_array_data(ctx
, vao
, k
, j
);
179 if (_mesa_is_bufferobj(vao
->IndexBufferObj
)) {
180 ctx
->Driver
.UnmapBuffer(ctx
, vao
->IndexBufferObj
, MAP_INTERNAL
);
183 for (k
= 0; k
< VERT_ATTRIB_MAX
; k
++) {
184 unmap_array_buffer(ctx
, vao
, k
);
190 * Check array data, looking for NaNs, etc.
193 check_draw_arrays_data(struct gl_context
*ctx
, GLint start
, GLsizei count
)
200 * Check if we should skip the draw call even after validation was successful.
203 skip_validated_draw(struct gl_context
*ctx
)
207 /* For ES2, we can draw if we have a vertex program/shader). */
208 return ctx
->VertexProgram
._Current
== NULL
;
211 /* For OpenGL ES, only draw if we have vertex positions
213 if (!ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
)
217 case API_OPENGL_CORE
:
218 /* Section 7.3 (Program Objects) of the OpenGL 4.5 Core Profile spec
221 * "If there is no active program for the vertex or fragment shader
222 * stages, the results of vertex and/or fragment processing will be
223 * undefined. However, this is not an error."
225 * The fragment shader is not tested here because other state (e.g.,
226 * GL_RASTERIZER_DISCARD) affects whether or not we actually care.
228 return ctx
->VertexProgram
._Current
== NULL
;
230 case API_OPENGL_COMPAT
:
231 if (ctx
->VertexProgram
._Current
!= NULL
) {
232 /* Draw regardless of whether or not we have any vertex arrays.
233 * (Ex: could draw a point using a constant vertex pos)
237 /* Draw if we have vertex positions (GL_VERTEX_ARRAY or generic
240 return (!ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
&&
241 !ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_GENERIC0
].Enabled
);
246 unreachable("Invalid API value in check_valid_to_render()");
254 * Print info/data for glDrawArrays(), for debugging.
257 print_draw_arrays(struct gl_context
*ctx
,
258 GLenum mode
, GLint start
, GLsizei count
)
260 const struct gl_vertex_array_object
*vao
= ctx
->Array
.VAO
;
262 printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",
266 for (i
= 0; i
< VERT_ATTRIB_MAX
; ++i
) {
267 const struct gl_array_attributes
*array
= &vao
->VertexAttrib
[i
];
271 const struct gl_vertex_buffer_binding
*binding
=
272 &vao
->BufferBinding
[array
->BufferBindingIndex
];
273 struct gl_buffer_object
*bufObj
= binding
->BufferObj
;
275 printf("attr %s: size %d stride %d enabled %d "
276 "ptr %p Bufobj %u\n",
277 gl_vert_attrib_name((gl_vert_attrib
) i
),
278 array
->Size
, binding
->Stride
, array
->Enabled
,
279 array
->Ptr
, bufObj
->Name
);
281 if (_mesa_is_bufferobj(bufObj
)) {
282 GLubyte
*p
= ctx
->Driver
.MapBufferRange(ctx
, 0, bufObj
->Size
,
283 GL_MAP_READ_BIT
, bufObj
,
285 int offset
= (int) (GLintptr
)
286 _mesa_vertex_attrib_address(array
, binding
);
289 switch (array
->Type
) {
292 case GL_UNSIGNED_INT64_ARB
:
299 float *f
= (float *) (p
+ offset
);
302 int n
= (count
- 1) * (binding
->Stride
/ (4 * multiplier
))
306 printf(" Data at offset %d:\n", offset
);
309 printf(" double[%d] = 0x%016llx %lf\n", i
,
310 ((unsigned long long *) k
)[i
], ((double *) f
)[i
]);
312 printf(" float[%d] = 0x%08x %f\n", i
, k
[i
], f
[i
]);
315 ctx
->Driver
.UnmapBuffer(ctx
, bufObj
, MAP_INTERNAL
);
322 * Set the vbo->exec->inputs[] pointers to point to the enabled
323 * vertex arrays. This depends on the current vertex program/shader
324 * being executed because of whether or not generic vertex arrays
325 * alias the conventional vertex arrays.
326 * For arrays that aren't enabled, we set the input[attrib] pointer
327 * to point at a zero-stride current value "array".
330 recalculate_input_bindings(struct gl_context
*ctx
)
332 struct vbo_context
*vbo
= vbo_context(ctx
);
333 struct vbo_exec_context
*exec
= &vbo
->exec
;
334 const struct gl_vertex_array_object
*vao
= ctx
->Array
.VAO
;
335 const struct gl_vertex_array
*vertexAttrib
= vao
->_VertexArray
;
336 const struct gl_vertex_array
**inputs
= &exec
->array
.inputs
[0];
338 /* May shuffle the position and generic0 bits around */
339 GLbitfield vp_inputs
= _mesa_get_vao_vp_inputs(vao
);
341 const gl_vertex_processing_mode processing_mode
342 = ctx
->VertexProgram
._VPMode
;
343 const GLubyte
* const map
= _vbo_attribute_alias_map
[processing_mode
];
344 switch (processing_mode
) {
346 /* When no vertex program is active (or the vertex program is generated
347 * from fixed-function state). We put the material values into the
348 * generic slots. Since the vao has no material arrays, mute these
349 * slots from the enabled arrays so that the current material values
350 * are pulled instead of the vao arrays.
352 vp_inputs
&= VERT_BIT_FF_ALL
;
357 /* There are no shaders in OpenGL ES 1.x, so this code path should be
358 * impossible to reach. The meta code is careful to not use shaders in
361 assert(ctx
->API
!= API_OPENGLES
);
363 /* In the compatibility profile of desktop OpenGL, the generic[0]
364 * attribute array aliases and overrides the legacy position array.
365 * Otherwise, legacy attributes available in the legacy slots,
366 * generic attributes in the generic slots and materials are not
367 * available as per-vertex attributes.
369 * In all other APIs, only the generic attributes exist, and none of the
370 * slots are considered "magic."
373 /* Other parts of the code assume that inputs[VERT_ATTRIB_POS] through
374 * inputs[VERT_ATTRIB_FF_MAX] will be non-NULL. However, in OpenGL
375 * ES 2.0+ or OpenGL core profile, none of these arrays should ever
378 if (ctx
->API
!= API_OPENGL_COMPAT
)
379 vp_inputs
&= VERT_BIT_GENERIC_ALL
;
386 const gl_attribute_map_mode mode
= vao
->_AttributeMapMode
;
387 const GLubyte
*const vao_map
= _mesa_vao_attribute_map
[mode
];
388 for (unsigned vp_attrib
= 0; vp_attrib
< VERT_ATTRIB_MAX
; ++vp_attrib
) {
389 if (unlikely(vp_inputs
& VERT_BIT(vp_attrib
)))
390 inputs
[vp_attrib
] = &vertexAttrib
[vao_map
[vp_attrib
]];
392 inputs
[vp_attrib
] = &vbo
->currval
[map
[vp_attrib
]];
395 _mesa_set_varying_vp_inputs(ctx
, vp_inputs
);
396 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewArray
;
401 * Examine the enabled vertex arrays to set the exec->array.inputs[] values.
402 * These will point to the arrays to actually use for drawing. Some will
403 * be user-provided arrays, other will be zero-stride const-valued arrays.
404 * Note that this might set the _NEW_VARYING_VP_INPUTS dirty flag so state
405 * validation must be done after this call.
408 vbo_bind_arrays(struct gl_context
*ctx
)
410 struct vbo_context
*vbo
= vbo_context(ctx
);
411 struct vbo_exec_context
*exec
= &vbo
->exec
;
413 _mesa_set_drawing_arrays(ctx
, vbo
->exec
.array
.inputs
);
415 if (exec
->array
.recalculate_inputs
) {
416 recalculate_input_bindings(ctx
);
417 exec
->array
.recalculate_inputs
= GL_FALSE
;
419 /* Again... because we may have changed the bitmask of per-vertex varying
420 * attributes. If we regenerate the fixed-function vertex program now
421 * we may be able to prune down the number of vertex attributes which we
422 * need in the shader.
425 /* Setting "validating" to TRUE prevents _mesa_update_state from
426 * invalidating what we just did.
428 exec
->validating
= GL_TRUE
;
429 _mesa_update_state(ctx
);
430 exec
->validating
= GL_FALSE
;
437 * Helper function called by the other DrawArrays() functions below.
438 * This is where we handle primitive restart for drawing non-indexed
439 * arrays. If primitive restart is enabled, it typically means
440 * splitting one DrawArrays() into two.
443 vbo_draw_arrays(struct gl_context
*ctx
, GLenum mode
, GLint start
,
444 GLsizei count
, GLuint numInstances
, GLuint baseInstance
,
447 struct vbo_context
*vbo
= vbo_context(ctx
);
448 struct _mesa_prim prim
;
450 if (skip_validated_draw(ctx
))
453 vbo_bind_arrays(ctx
);
455 /* OpenGL 4.5 says that primitive restart is ignored with non-indexed
458 memset(&prim
, 0, sizeof(prim
));
462 prim
.num_instances
= numInstances
;
463 prim
.base_instance
= baseInstance
;
464 prim
.draw_id
= drawID
;
465 prim
.is_indirect
= 0;
469 vbo
->draw_prims(ctx
, &prim
, 1, NULL
,
470 GL_TRUE
, start
, start
+ count
- 1, NULL
, 0, NULL
);
472 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
479 * Execute a glRectf() function.
481 static void GLAPIENTRY
482 vbo_exec_Rectf(GLfloat x1
, GLfloat y1
, GLfloat x2
, GLfloat y2
)
484 GET_CURRENT_CONTEXT(ctx
);
485 ASSERT_OUTSIDE_BEGIN_END(ctx
);
487 CALL_Begin(GET_DISPATCH(), (GL_QUADS
));
488 CALL_Vertex2f(GET_DISPATCH(), (x1
, y1
));
489 CALL_Vertex2f(GET_DISPATCH(), (x2
, y1
));
490 CALL_Vertex2f(GET_DISPATCH(), (x2
, y2
));
491 CALL_Vertex2f(GET_DISPATCH(), (x1
, y2
));
492 CALL_End(GET_DISPATCH(), ());
496 static void GLAPIENTRY
497 vbo_exec_EvalMesh1(GLenum mode
, GLint i1
, GLint i2
)
499 GET_CURRENT_CONTEXT(ctx
);
509 prim
= GL_LINE_STRIP
;
512 _mesa_error(ctx
, GL_INVALID_ENUM
, "glEvalMesh1(mode)");
516 /* No effect if vertex maps disabled.
518 if (!ctx
->Eval
.Map1Vertex4
&& !ctx
->Eval
.Map1Vertex3
)
521 du
= ctx
->Eval
.MapGrid1du
;
522 u
= ctx
->Eval
.MapGrid1u1
+ i1
* du
;
524 CALL_Begin(GET_DISPATCH(), (prim
));
525 for (i
= i1
; i
<= i2
; i
++, u
+= du
) {
526 CALL_EvalCoord1f(GET_DISPATCH(), (u
));
528 CALL_End(GET_DISPATCH(), ());
532 static void GLAPIENTRY
533 vbo_exec_EvalMesh2(GLenum mode
, GLint i1
, GLint i2
, GLint j1
, GLint j2
)
535 GET_CURRENT_CONTEXT(ctx
);
536 GLfloat u
, du
, v
, dv
, v1
, u1
;
545 _mesa_error(ctx
, GL_INVALID_ENUM
, "glEvalMesh2(mode)");
549 /* No effect if vertex maps disabled.
551 if (!ctx
->Eval
.Map2Vertex4
&& !ctx
->Eval
.Map2Vertex3
)
554 du
= ctx
->Eval
.MapGrid2du
;
555 dv
= ctx
->Eval
.MapGrid2dv
;
556 v1
= ctx
->Eval
.MapGrid2v1
+ j1
* dv
;
557 u1
= ctx
->Eval
.MapGrid2u1
+ i1
* du
;
561 CALL_Begin(GET_DISPATCH(), (GL_POINTS
));
562 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
563 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
564 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
567 CALL_End(GET_DISPATCH(), ());
570 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
571 CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP
));
572 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
573 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
575 CALL_End(GET_DISPATCH(), ());
577 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
578 CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP
));
579 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
580 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
582 CALL_End(GET_DISPATCH(), ());
586 for (v
= v1
, j
= j1
; j
< j2
; j
++, v
+= dv
) {
587 CALL_Begin(GET_DISPATCH(), (GL_TRIANGLE_STRIP
));
588 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
589 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
590 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
+ dv
));
592 CALL_End(GET_DISPATCH(), ());
600 * Called from glDrawArrays when in immediate mode (not display list mode).
602 static void GLAPIENTRY
603 vbo_exec_DrawArrays(GLenum mode
, GLint start
, GLsizei count
)
605 GET_CURRENT_CONTEXT(ctx
);
607 if (MESA_VERBOSE
& VERBOSE_DRAW
)
608 _mesa_debug(ctx
, "glDrawArrays(%s, %d, %d)\n",
609 _mesa_enum_to_string(mode
), start
, count
);
611 if (_mesa_is_no_error_enabled(ctx
)) {
612 FLUSH_CURRENT(ctx
, 0);
615 _mesa_update_state(ctx
);
617 if (!_mesa_validate_DrawArrays(ctx
, mode
, count
))
622 check_draw_arrays_data(ctx
, start
, count
);
624 vbo_draw_arrays(ctx
, mode
, start
, count
, 1, 0, 0);
627 print_draw_arrays(ctx
, mode
, start
, count
);
632 * Called from glDrawArraysInstanced when in immediate mode (not
633 * display list mode).
635 static void GLAPIENTRY
636 vbo_exec_DrawArraysInstanced(GLenum mode
, GLint start
, GLsizei count
,
637 GLsizei numInstances
)
639 GET_CURRENT_CONTEXT(ctx
);
641 if (MESA_VERBOSE
& VERBOSE_DRAW
)
642 _mesa_debug(ctx
, "glDrawArraysInstanced(%s, %d, %d, %d)\n",
643 _mesa_enum_to_string(mode
), start
, count
, numInstances
);
646 if (_mesa_is_no_error_enabled(ctx
)) {
647 FLUSH_CURRENT(ctx
, 0);
650 _mesa_update_state(ctx
);
652 if (!_mesa_validate_DrawArraysInstanced(ctx
, mode
, start
, count
,
658 check_draw_arrays_data(ctx
, start
, count
);
660 vbo_draw_arrays(ctx
, mode
, start
, count
, numInstances
, 0, 0);
663 print_draw_arrays(ctx
, mode
, start
, count
);
668 * Called from glDrawArraysInstancedBaseInstance when in immediate mode.
670 static void GLAPIENTRY
671 vbo_exec_DrawArraysInstancedBaseInstance(GLenum mode
, GLint first
,
672 GLsizei count
, GLsizei numInstances
,
675 GET_CURRENT_CONTEXT(ctx
);
677 if (MESA_VERBOSE
& VERBOSE_DRAW
)
679 "glDrawArraysInstancedBaseInstance(%s, %d, %d, %d, %d)\n",
680 _mesa_enum_to_string(mode
), first
, count
,
681 numInstances
, baseInstance
);
683 if (_mesa_is_no_error_enabled(ctx
)) {
684 FLUSH_CURRENT(ctx
, 0);
687 _mesa_update_state(ctx
);
689 if (!_mesa_validate_DrawArraysInstanced(ctx
, mode
, first
, count
,
695 check_draw_arrays_data(ctx
, first
, count
);
697 vbo_draw_arrays(ctx
, mode
, first
, count
, numInstances
, baseInstance
, 0);
700 print_draw_arrays(ctx
, mode
, first
, count
);
705 * Called from glMultiDrawArrays when in immediate mode.
707 static void GLAPIENTRY
708 vbo_exec_MultiDrawArrays(GLenum mode
, const GLint
*first
,
709 const GLsizei
*count
, GLsizei primcount
)
711 GET_CURRENT_CONTEXT(ctx
);
714 if (MESA_VERBOSE
& VERBOSE_DRAW
)
716 "glMultiDrawArrays(%s, %p, %p, %d)\n",
717 _mesa_enum_to_string(mode
), first
, count
, primcount
);
719 if (_mesa_is_no_error_enabled(ctx
)) {
720 FLUSH_CURRENT(ctx
, 0);
723 _mesa_update_state(ctx
);
725 if (!_mesa_validate_MultiDrawArrays(ctx
, mode
, count
, primcount
))
729 for (i
= 0; i
< primcount
; i
++) {
732 check_draw_arrays_data(ctx
, first
[i
], count
[i
]);
734 /* The GL_ARB_shader_draw_parameters spec adds the following after the
735 * pseudo-code describing glMultiDrawArrays:
737 * "The index of the draw (<i> in the above pseudo-code) may be
738 * read by a vertex shader as <gl_DrawIDARB>, as described in
741 vbo_draw_arrays(ctx
, mode
, first
[i
], count
[i
], 1, 0, i
);
744 print_draw_arrays(ctx
, mode
, first
[i
], count
[i
]);
752 * Map GL_ELEMENT_ARRAY_BUFFER and print contents.
757 dump_element_buffer(struct gl_context
*ctx
, GLenum type
)
760 ctx
->Driver
.MapBufferRange(ctx
, 0,
761 ctx
->Array
.VAO
->IndexBufferObj
->Size
,
763 ctx
->Array
.VAO
->IndexBufferObj
,
766 case GL_UNSIGNED_BYTE
:
768 const GLubyte
*us
= (const GLubyte
*) map
;
770 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
; i
++) {
771 printf("%02x ", us
[i
]);
778 case GL_UNSIGNED_SHORT
:
780 const GLushort
*us
= (const GLushort
*) map
;
782 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
/ 2; i
++) {
783 printf("%04x ", us
[i
]);
790 case GL_UNSIGNED_INT
:
792 const GLuint
*us
= (const GLuint
*) map
;
794 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
/ 4; i
++) {
795 printf("%08x ", us
[i
]);
806 ctx
->Driver
.UnmapBuffer(ctx
, ctx
->Array
.VAO
->IndexBufferObj
, MAP_INTERNAL
);
812 skip_draw_elements(struct gl_context
*ctx
, GLsizei count
,
813 const GLvoid
*indices
)
818 /* Not using a VBO for indices, so avoid NULL pointer derefs later.
820 if (!_mesa_is_bufferobj(ctx
->Array
.VAO
->IndexBufferObj
) && indices
== NULL
)
823 if (skip_validated_draw(ctx
))
831 * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements.
832 * Do the rendering for a glDrawElements or glDrawRangeElements call after
833 * we've validated buffer bounds, etc.
836 vbo_validated_drawrangeelements(struct gl_context
*ctx
, GLenum mode
,
837 GLboolean index_bounds_valid
,
838 GLuint start
, GLuint end
,
839 GLsizei count
, GLenum type
,
840 const GLvoid
* indices
,
841 GLint basevertex
, GLuint numInstances
,
844 struct vbo_context
*vbo
= vbo_context(ctx
);
845 struct _mesa_index_buffer ib
;
846 struct _mesa_prim prim
;
848 if (!index_bounds_valid
) {
853 if (skip_draw_elements(ctx
, count
, indices
))
856 vbo_bind_arrays(ctx
);
859 ib
.index_size
= sizeof_ib_type(type
);
860 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
871 prim
.is_indirect
= 0;
872 prim
.basevertex
= basevertex
;
873 prim
.num_instances
= numInstances
;
874 prim
.base_instance
= baseInstance
;
877 /* Need to give special consideration to rendering a range of
878 * indices starting somewhere above zero. Typically the
879 * application is issuing multiple DrawRangeElements() to draw
880 * successive primitives layed out linearly in the vertex arrays.
881 * Unless the vertex arrays are all in a VBO (or locked as with
882 * CVA), the OpenGL semantics imply that we need to re-read or
883 * re-upload the vertex data on each draw call.
885 * In the case of hardware tnl, we want to avoid starting the
886 * upload at zero, as it will mean every draw call uploads an
887 * increasing amount of not-used vertex data. Worse - in the
888 * software tnl module, all those vertices might be transformed and
889 * lit but never rendered.
891 * If we just upload or transform the vertices in start..end,
892 * however, the indices will be incorrect.
894 * At this level, we don't know exactly what the requirements of
895 * the backend are going to be, though it will likely boil down to
898 * 1) Do nothing, everything is in a VBO and is processed once
901 * 2) Adjust the indices and vertex arrays so that start becomes
904 * Rather than doing anything here, I'll provide a helper function
905 * for the latter case elsewhere.
908 vbo
->draw_prims(ctx
, &prim
, 1, &ib
,
909 index_bounds_valid
, start
, end
, NULL
, 0, NULL
);
911 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
918 * Called by glDrawRangeElementsBaseVertex() in immediate mode.
920 static void GLAPIENTRY
921 vbo_exec_DrawRangeElementsBaseVertex(GLenum mode
, GLuint start
, GLuint end
,
922 GLsizei count
, GLenum type
,
923 const GLvoid
* indices
, GLint basevertex
)
925 static GLuint warnCount
= 0;
926 GLboolean index_bounds_valid
= GL_TRUE
;
928 /* This is only useful to catch invalid values in the "end" parameter
931 GLuint max_element
= 2 * 1000 * 1000 * 1000; /* just a big number */
933 GET_CURRENT_CONTEXT(ctx
);
935 if (MESA_VERBOSE
& VERBOSE_DRAW
)
937 "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n",
938 _mesa_enum_to_string(mode
), start
, end
, count
,
939 _mesa_enum_to_string(type
), indices
, basevertex
);
941 if (_mesa_is_no_error_enabled(ctx
)) {
942 FLUSH_CURRENT(ctx
, 0);
945 _mesa_update_state(ctx
);
947 if (!_mesa_validate_DrawRangeElements(ctx
, mode
, start
, end
, count
,
952 if ((int) end
+ basevertex
< 0 || start
+ basevertex
>= max_element
) {
953 /* The application requested we draw using a range of indices that's
954 * outside the bounds of the current VBO. This is invalid and appears
955 * to give undefined results. The safest thing to do is to simply
956 * ignore the range, in case the application botched their range tracking
957 * but did provide valid indices. Also issue a warning indicating that
958 * the application is broken.
960 if (warnCount
++ < 10) {
961 _mesa_warning(ctx
, "glDrawRangeElements(start %u, end %u, "
962 "basevertex %d, count %d, type 0x%x, indices=%p):\n"
963 "\trange is outside VBO bounds (max=%u); ignoring.\n"
964 "\tThis should be fixed in the application.",
965 start
, end
, basevertex
, count
, type
, indices
,
968 index_bounds_valid
= GL_FALSE
;
971 /* NOTE: It's important that 'end' is a reasonable value.
972 * in _tnl_draw_prims(), we use end to determine how many vertices
973 * to transform. If it's too large, we can unnecessarily split prims
974 * or we can read/write out of memory in several different places!
977 /* Catch/fix some potential user errors */
978 if (type
== GL_UNSIGNED_BYTE
) {
979 start
= MIN2(start
, 0xff);
980 end
= MIN2(end
, 0xff);
982 else if (type
== GL_UNSIGNED_SHORT
) {
983 start
= MIN2(start
, 0xffff);
984 end
= MIN2(end
, 0xffff);
988 printf("glDraw[Range]Elements{,BaseVertex}"
989 "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, "
991 start
, end
, type
, count
,
992 ctx
->Array
.VAO
->IndexBufferObj
->Name
, basevertex
);
995 if ((int) start
+ basevertex
< 0 || end
+ basevertex
>= max_element
)
996 index_bounds_valid
= GL_FALSE
;
999 check_draw_elements_data(ctx
, count
, type
, indices
, basevertex
);
1001 (void) check_draw_elements_data
;
1004 if (!index_bounds_valid
) {
1009 vbo_validated_drawrangeelements(ctx
, mode
, index_bounds_valid
, start
, end
,
1010 count
, type
, indices
, basevertex
, 1, 0);
1015 * Called by glDrawRangeElements() in immediate mode.
1017 static void GLAPIENTRY
1018 vbo_exec_DrawRangeElements(GLenum mode
, GLuint start
, GLuint end
,
1019 GLsizei count
, GLenum type
, const GLvoid
* indices
)
1021 if (MESA_VERBOSE
& VERBOSE_DRAW
) {
1022 GET_CURRENT_CONTEXT(ctx
);
1024 "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n",
1025 _mesa_enum_to_string(mode
), start
, end
, count
,
1026 _mesa_enum_to_string(type
), indices
);
1029 vbo_exec_DrawRangeElementsBaseVertex(mode
, start
, end
, count
, type
,
1035 * Called by glDrawElements() in immediate mode.
1037 static void GLAPIENTRY
1038 vbo_exec_DrawElements(GLenum mode
, GLsizei count
, GLenum type
,
1039 const GLvoid
* indices
)
1041 GET_CURRENT_CONTEXT(ctx
);
1043 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1044 _mesa_debug(ctx
, "glDrawElements(%s, %u, %s, %p)\n",
1045 _mesa_enum_to_string(mode
), count
,
1046 _mesa_enum_to_string(type
), indices
);
1048 if (_mesa_is_no_error_enabled(ctx
)) {
1049 FLUSH_CURRENT(ctx
, 0);
1052 _mesa_update_state(ctx
);
1054 if (!_mesa_validate_DrawElements(ctx
, mode
, count
, type
, indices
))
1058 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1059 count
, type
, indices
, 0, 1, 0);
1064 * Called by glDrawElementsBaseVertex() in immediate mode.
1066 static void GLAPIENTRY
1067 vbo_exec_DrawElementsBaseVertex(GLenum mode
, GLsizei count
, GLenum type
,
1068 const GLvoid
* indices
, GLint basevertex
)
1070 GET_CURRENT_CONTEXT(ctx
);
1072 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1073 _mesa_debug(ctx
, "glDrawElements(%s, %u, %s, %p)\n",
1074 _mesa_enum_to_string(mode
), count
,
1075 _mesa_enum_to_string(type
), indices
);
1077 if (_mesa_is_no_error_enabled(ctx
)) {
1078 FLUSH_CURRENT(ctx
, 0);
1081 _mesa_update_state(ctx
);
1083 if (!_mesa_validate_DrawElements(ctx
, mode
, count
, type
, indices
))
1087 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1088 count
, type
, indices
, basevertex
, 1, 0);
1093 * Called by glDrawElementsInstanced() in immediate mode.
1095 static void GLAPIENTRY
1096 vbo_exec_DrawElementsInstanced(GLenum mode
, GLsizei count
, GLenum type
,
1097 const GLvoid
* indices
, GLsizei numInstances
)
1099 GET_CURRENT_CONTEXT(ctx
);
1101 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1102 _mesa_debug(ctx
, "glDrawElements(%s, %u, %s, %p)\n",
1103 _mesa_enum_to_string(mode
), count
,
1104 _mesa_enum_to_string(type
), indices
);
1106 if (_mesa_is_no_error_enabled(ctx
)) {
1107 FLUSH_CURRENT(ctx
, 0);
1110 _mesa_update_state(ctx
);
1112 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
,
1113 indices
, numInstances
))
1117 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1118 count
, type
, indices
, 0, numInstances
, 0);
1123 * Called by glDrawElementsInstancedBaseVertex() in immediate mode.
1125 static void GLAPIENTRY
1126 vbo_exec_DrawElementsInstancedBaseVertex(GLenum mode
, GLsizei count
,
1127 GLenum type
, const GLvoid
* indices
,
1128 GLsizei numInstances
,
1131 GET_CURRENT_CONTEXT(ctx
);
1133 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1135 "glDrawElementsInstancedBaseVertex"
1136 "(%s, %d, %s, %p, %d; %d)\n",
1137 _mesa_enum_to_string(mode
), count
,
1138 _mesa_enum_to_string(type
), indices
,
1139 numInstances
, basevertex
);
1141 if (_mesa_is_no_error_enabled(ctx
)) {
1142 FLUSH_CURRENT(ctx
, 0);
1145 _mesa_update_state(ctx
);
1147 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
,
1148 indices
, numInstances
))
1152 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1153 count
, type
, indices
,
1154 basevertex
, numInstances
, 0);
1159 * Called by glDrawElementsInstancedBaseInstance() in immediate mode.
1161 static void GLAPIENTRY
1162 vbo_exec_DrawElementsInstancedBaseInstance(GLenum mode
, GLsizei count
,
1164 const GLvoid
*indices
,
1165 GLsizei numInstances
,
1166 GLuint baseInstance
)
1168 GET_CURRENT_CONTEXT(ctx
);
1170 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1172 "glDrawElementsInstancedBaseInstance"
1173 "(%s, %d, %s, %p, %d, %d)\n",
1174 _mesa_enum_to_string(mode
), count
,
1175 _mesa_enum_to_string(type
), indices
,
1176 numInstances
, baseInstance
);
1178 if (_mesa_is_no_error_enabled(ctx
)) {
1179 FLUSH_CURRENT(ctx
, 0);
1182 _mesa_update_state(ctx
);
1184 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
,
1185 indices
, numInstances
))
1189 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1190 count
, type
, indices
, 0, numInstances
,
1196 * Called by glDrawElementsInstancedBaseVertexBaseInstance() in immediate mode.
1198 static void GLAPIENTRY
1199 vbo_exec_DrawElementsInstancedBaseVertexBaseInstance(GLenum mode
,
1202 const GLvoid
*indices
,
1203 GLsizei numInstances
,
1205 GLuint baseInstance
)
1207 GET_CURRENT_CONTEXT(ctx
);
1209 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1211 "glDrawElementsInstancedBaseVertexBaseInstance"
1212 "(%s, %d, %s, %p, %d, %d, %d)\n",
1213 _mesa_enum_to_string(mode
), count
,
1214 _mesa_enum_to_string(type
), indices
,
1215 numInstances
, basevertex
, baseInstance
);
1217 if (_mesa_is_no_error_enabled(ctx
)) {
1218 FLUSH_CURRENT(ctx
, 0);
1221 _mesa_update_state(ctx
);
1223 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
,
1224 indices
, numInstances
))
1228 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1229 count
, type
, indices
, basevertex
,
1230 numInstances
, baseInstance
);
1235 * Inner support for both _mesa_MultiDrawElements() and
1236 * _mesa_MultiDrawRangeElements().
1237 * This does the actual rendering after we've checked array indexes, etc.
1240 vbo_validated_multidrawelements(struct gl_context
*ctx
, GLenum mode
,
1241 const GLsizei
*count
, GLenum type
,
1242 const GLvoid
* const *indices
,
1243 GLsizei primcount
, const GLint
*basevertex
)
1245 struct vbo_context
*vbo
= vbo_context(ctx
);
1246 struct _mesa_index_buffer ib
;
1247 struct _mesa_prim
*prim
;
1248 unsigned int index_type_size
= sizeof_ib_type(type
);
1249 uintptr_t min_index_ptr
, max_index_ptr
;
1250 GLboolean fallback
= GL_FALSE
;
1256 prim
= calloc(primcount
, sizeof(*prim
));
1258 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glMultiDrawElements");
1262 vbo_bind_arrays(ctx
);
1264 min_index_ptr
= (uintptr_t) indices
[0];
1266 for (i
= 0; i
< primcount
; i
++) {
1267 min_index_ptr
= MIN2(min_index_ptr
, (uintptr_t) indices
[i
]);
1268 max_index_ptr
= MAX2(max_index_ptr
, (uintptr_t) indices
[i
] +
1269 index_type_size
* count
[i
]);
1272 /* Check if we can handle this thing as a bunch of index offsets from the
1273 * same index pointer. If we can't, then we have to fall back to doing
1274 * a draw_prims per primitive.
1275 * Check that the difference between each prim's indexes is a multiple of
1276 * the index/element size.
1278 if (index_type_size
!= 1) {
1279 for (i
= 0; i
< primcount
; i
++) {
1280 if ((((uintptr_t) indices
[i
] - min_index_ptr
) % index_type_size
) !=
1288 /* Draw primitives individually if one count is zero, so we can easily skip
1291 for (i
= 0; i
< primcount
; i
++) {
1292 if (count
[i
] == 0) {
1298 /* If the index buffer isn't in a VBO, then treating the application's
1299 * subranges of the index buffer as one large index buffer may lead to
1300 * us reading unmapped memory.
1302 if (!_mesa_is_bufferobj(ctx
->Array
.VAO
->IndexBufferObj
))
1306 ib
.count
= (max_index_ptr
- min_index_ptr
) / index_type_size
;
1307 ib
.index_size
= sizeof_ib_type(type
);
1308 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1309 ib
.ptr
= (void *) min_index_ptr
;
1311 for (i
= 0; i
< primcount
; i
++) {
1312 prim
[i
].begin
= (i
== 0);
1313 prim
[i
].end
= (i
== primcount
- 1);
1316 prim
[i
].mode
= mode
;
1318 ((uintptr_t) indices
[i
] - min_index_ptr
) / index_type_size
;
1319 prim
[i
].count
= count
[i
];
1320 prim
[i
].indexed
= 1;
1321 prim
[i
].num_instances
= 1;
1322 prim
[i
].base_instance
= 0;
1323 prim
[i
].draw_id
= i
;
1324 prim
[i
].is_indirect
= 0;
1325 if (basevertex
!= NULL
)
1326 prim
[i
].basevertex
= basevertex
[i
];
1328 prim
[i
].basevertex
= 0;
1331 vbo
->draw_prims(ctx
, prim
, primcount
, &ib
,
1332 false, 0, ~0, NULL
, 0, NULL
);
1335 /* render one prim at a time */
1336 for (i
= 0; i
< primcount
; i
++) {
1339 ib
.count
= count
[i
];
1340 ib
.index_size
= sizeof_ib_type(type
);
1341 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1342 ib
.ptr
= indices
[i
];
1348 prim
[0].mode
= mode
;
1350 prim
[0].count
= count
[i
];
1351 prim
[0].indexed
= 1;
1352 prim
[0].num_instances
= 1;
1353 prim
[0].base_instance
= 0;
1354 prim
[0].draw_id
= i
;
1355 prim
[0].is_indirect
= 0;
1356 if (basevertex
!= NULL
)
1357 prim
[0].basevertex
= basevertex
[i
];
1359 prim
[0].basevertex
= 0;
1361 vbo
->draw_prims(ctx
, prim
, 1, &ib
, false, 0, ~0, NULL
, 0, NULL
);
1367 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
1373 static void GLAPIENTRY
1374 vbo_exec_MultiDrawElements(GLenum mode
,
1375 const GLsizei
*count
, GLenum type
,
1376 const GLvoid
* const *indices
, GLsizei primcount
)
1378 GET_CURRENT_CONTEXT(ctx
);
1380 if (!_mesa_validate_MultiDrawElements(ctx
, mode
, count
, type
, indices
,
1384 if (skip_validated_draw(ctx
))
1387 vbo_validated_multidrawelements(ctx
, mode
, count
, type
, indices
, primcount
,
1392 static void GLAPIENTRY
1393 vbo_exec_MultiDrawElementsBaseVertex(GLenum mode
,
1394 const GLsizei
*count
, GLenum type
,
1395 const GLvoid
* const *indices
,
1397 const GLsizei
*basevertex
)
1399 GET_CURRENT_CONTEXT(ctx
);
1401 if (_mesa_is_no_error_enabled(ctx
)) {
1402 FLUSH_CURRENT(ctx
, 0);
1405 _mesa_update_state(ctx
);
1407 if (!_mesa_validate_MultiDrawElements(ctx
, mode
, count
, type
, indices
,
1412 if (skip_validated_draw(ctx
))
1415 vbo_validated_multidrawelements(ctx
, mode
, count
, type
, indices
, primcount
,
1421 * Draw a GL primitive using a vertex count obtained from transform feedback.
1422 * \param mode the type of GL primitive to draw
1423 * \param obj the transform feedback object to use
1424 * \param stream index of the transform feedback stream from which to
1425 * get the primitive count.
1426 * \param numInstances number of instances to draw
1429 vbo_draw_transform_feedback(struct gl_context
*ctx
, GLenum mode
,
1430 struct gl_transform_feedback_object
*obj
,
1431 GLuint stream
, GLuint numInstances
)
1433 struct vbo_context
*vbo
= vbo_context(ctx
);
1434 struct _mesa_prim prim
;
1436 if (_mesa_is_no_error_enabled(ctx
)) {
1437 FLUSH_CURRENT(ctx
, 0);
1440 _mesa_update_state(ctx
);
1442 if (!_mesa_validate_DrawTransformFeedback(ctx
, mode
, obj
, stream
,
1448 if (ctx
->Driver
.GetTransformFeedbackVertexCount
&&
1449 (ctx
->Const
.AlwaysUseGetTransformFeedbackVertexCount
||
1450 !_mesa_all_varyings_in_vbos(ctx
->Array
.VAO
))) {
1452 ctx
->Driver
.GetTransformFeedbackVertexCount(ctx
, obj
, stream
);
1453 vbo_draw_arrays(ctx
, mode
, 0, n
, numInstances
, 0, 0);
1457 if (skip_validated_draw(ctx
))
1460 vbo_bind_arrays(ctx
);
1462 /* init most fields to zero */
1463 memset(&prim
, 0, sizeof(prim
));
1467 prim
.num_instances
= numInstances
;
1468 prim
.base_instance
= 0;
1469 prim
.is_indirect
= 0;
1471 /* Maybe we should do some primitive splitting for primitive restart
1472 * (like in DrawArrays), but we have no way to know how many vertices
1473 * will be rendered. */
1475 vbo
->draw_prims(ctx
, &prim
, 1, NULL
, GL_FALSE
, 0, ~0, obj
, stream
, NULL
);
1477 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
1484 * Like DrawArrays, but take the count from a transform feedback object.
1485 * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc.
1486 * \param name the transform feedback object
1487 * User still has to setup of the vertex attribute info with
1488 * glVertexPointer, glColorPointer, etc.
1489 * Part of GL_ARB_transform_feedback2.
1491 static void GLAPIENTRY
1492 vbo_exec_DrawTransformFeedback(GLenum mode
, GLuint name
)
1494 GET_CURRENT_CONTEXT(ctx
);
1495 struct gl_transform_feedback_object
*obj
=
1496 _mesa_lookup_transform_feedback_object(ctx
, name
);
1498 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1499 _mesa_debug(ctx
, "glDrawTransformFeedback(%s, %d)\n",
1500 _mesa_enum_to_string(mode
), name
);
1502 vbo_draw_transform_feedback(ctx
, mode
, obj
, 0, 1);
1506 static void GLAPIENTRY
1507 vbo_exec_DrawTransformFeedbackStream(GLenum mode
, GLuint name
, GLuint stream
)
1509 GET_CURRENT_CONTEXT(ctx
);
1510 struct gl_transform_feedback_object
*obj
=
1511 _mesa_lookup_transform_feedback_object(ctx
, name
);
1513 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1514 _mesa_debug(ctx
, "glDrawTransformFeedbackStream(%s, %u, %u)\n",
1515 _mesa_enum_to_string(mode
), name
, stream
);
1517 vbo_draw_transform_feedback(ctx
, mode
, obj
, stream
, 1);
1521 static void GLAPIENTRY
1522 vbo_exec_DrawTransformFeedbackInstanced(GLenum mode
, GLuint name
,
1525 GET_CURRENT_CONTEXT(ctx
);
1526 struct gl_transform_feedback_object
*obj
=
1527 _mesa_lookup_transform_feedback_object(ctx
, name
);
1529 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1530 _mesa_debug(ctx
, "glDrawTransformFeedbackInstanced(%s, %d)\n",
1531 _mesa_enum_to_string(mode
), name
);
1533 vbo_draw_transform_feedback(ctx
, mode
, obj
, 0, primcount
);
1537 static void GLAPIENTRY
1538 vbo_exec_DrawTransformFeedbackStreamInstanced(GLenum mode
, GLuint name
,
1542 GET_CURRENT_CONTEXT(ctx
);
1543 struct gl_transform_feedback_object
*obj
=
1544 _mesa_lookup_transform_feedback_object(ctx
, name
);
1546 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1547 _mesa_debug(ctx
, "glDrawTransformFeedbackStreamInstanced"
1548 "(%s, %u, %u, %i)\n",
1549 _mesa_enum_to_string(mode
), name
, stream
, primcount
);
1551 vbo_draw_transform_feedback(ctx
, mode
, obj
, stream
, primcount
);
1556 vbo_validated_drawarraysindirect(struct gl_context
*ctx
,
1557 GLenum mode
, const GLvoid
*indirect
)
1559 struct vbo_context
*vbo
= vbo_context(ctx
);
1561 vbo_bind_arrays(ctx
);
1563 vbo
->draw_indirect_prims(ctx
, mode
,
1564 ctx
->DrawIndirectBuffer
, (GLsizeiptr
) indirect
,
1565 1 /* draw_count */ , 16 /* stride */ ,
1568 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1574 vbo_validated_multidrawarraysindirect(struct gl_context
*ctx
,
1576 const GLvoid
*indirect
,
1577 GLsizei primcount
, GLsizei stride
)
1579 struct vbo_context
*vbo
= vbo_context(ctx
);
1580 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1585 vbo_bind_arrays(ctx
);
1587 vbo
->draw_indirect_prims(ctx
, mode
, ctx
->DrawIndirectBuffer
, offset
,
1588 primcount
, stride
, NULL
, 0, NULL
);
1590 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1596 vbo_validated_drawelementsindirect(struct gl_context
*ctx
,
1597 GLenum mode
, GLenum type
,
1598 const GLvoid
*indirect
)
1600 struct vbo_context
*vbo
= vbo_context(ctx
);
1601 struct _mesa_index_buffer ib
;
1603 vbo_bind_arrays(ctx
);
1605 ib
.count
= 0; /* unknown */
1606 ib
.index_size
= sizeof_ib_type(type
);
1607 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1610 vbo
->draw_indirect_prims(ctx
, mode
,
1611 ctx
->DrawIndirectBuffer
, (GLsizeiptr
) indirect
,
1612 1 /* draw_count */ , 20 /* stride */ ,
1615 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1621 vbo_validated_multidrawelementsindirect(struct gl_context
*ctx
,
1622 GLenum mode
, GLenum type
,
1623 const GLvoid
*indirect
,
1624 GLsizei primcount
, GLsizei stride
)
1626 struct vbo_context
*vbo
= vbo_context(ctx
);
1627 struct _mesa_index_buffer ib
;
1628 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1633 vbo_bind_arrays(ctx
);
1635 /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
1637 ib
.count
= 0; /* unknown */
1638 ib
.index_size
= sizeof_ib_type(type
);
1639 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1642 vbo
->draw_indirect_prims(ctx
, mode
,
1643 ctx
->DrawIndirectBuffer
, offset
,
1644 primcount
, stride
, NULL
, 0, &ib
);
1646 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1652 * Like [Multi]DrawArrays/Elements, but they take most arguments from
1655 static void GLAPIENTRY
1656 vbo_exec_DrawArraysIndirect(GLenum mode
, const GLvoid
*indirect
)
1658 GET_CURRENT_CONTEXT(ctx
);
1660 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1661 _mesa_debug(ctx
, "glDrawArraysIndirect(%s, %p)\n",
1662 _mesa_enum_to_string(mode
), indirect
);
1664 if (_mesa_is_no_error_enabled(ctx
)) {
1665 FLUSH_CURRENT(ctx
, 0);
1668 _mesa_update_state(ctx
);
1670 if (!_mesa_validate_DrawArraysIndirect(ctx
, mode
, indirect
))
1674 if (skip_validated_draw(ctx
))
1677 vbo_validated_drawarraysindirect(ctx
, mode
, indirect
);
1681 static void GLAPIENTRY
1682 vbo_exec_DrawElementsIndirect(GLenum mode
, GLenum type
, const GLvoid
*indirect
)
1684 GET_CURRENT_CONTEXT(ctx
);
1686 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1687 _mesa_debug(ctx
, "glDrawElementsIndirect(%s, %s, %p)\n",
1688 _mesa_enum_to_string(mode
),
1689 _mesa_enum_to_string(type
), indirect
);
1691 if (_mesa_is_no_error_enabled(ctx
)) {
1692 FLUSH_CURRENT(ctx
, 0);
1695 _mesa_update_state(ctx
);
1697 if (!_mesa_validate_DrawElementsIndirect(ctx
, mode
, type
, indirect
))
1701 if (skip_validated_draw(ctx
))
1704 vbo_validated_drawelementsindirect(ctx
, mode
, type
, indirect
);
1708 static void GLAPIENTRY
1709 vbo_exec_MultiDrawArraysIndirect(GLenum mode
, const GLvoid
*indirect
,
1710 GLsizei primcount
, GLsizei stride
)
1712 GET_CURRENT_CONTEXT(ctx
);
1714 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1715 _mesa_debug(ctx
, "glMultiDrawArraysIndirect(%s, %p, %i, %i)\n",
1716 _mesa_enum_to_string(mode
), indirect
, primcount
, stride
);
1718 /* If <stride> is zero, the array elements are treated as tightly packed. */
1720 stride
= 4 * sizeof(GLuint
); /* sizeof(DrawArraysIndirectCommand) */
1722 if (_mesa_is_no_error_enabled(ctx
)) {
1723 FLUSH_CURRENT(ctx
, 0);
1726 _mesa_update_state(ctx
);
1728 if (!_mesa_validate_MultiDrawArraysIndirect(ctx
, mode
, indirect
,
1733 if (skip_validated_draw(ctx
))
1736 vbo_validated_multidrawarraysindirect(ctx
, mode
, indirect
,
1741 static void GLAPIENTRY
1742 vbo_exec_MultiDrawElementsIndirect(GLenum mode
, GLenum type
,
1743 const GLvoid
*indirect
,
1744 GLsizei primcount
, GLsizei stride
)
1746 GET_CURRENT_CONTEXT(ctx
);
1748 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1749 _mesa_debug(ctx
, "glMultiDrawElementsIndirect(%s, %s, %p, %i, %i)\n",
1750 _mesa_enum_to_string(mode
),
1751 _mesa_enum_to_string(type
), indirect
, primcount
, stride
);
1753 /* If <stride> is zero, the array elements are treated as tightly packed. */
1755 stride
= 5 * sizeof(GLuint
); /* sizeof(DrawElementsIndirectCommand) */
1757 if (_mesa_is_no_error_enabled(ctx
)) {
1758 FLUSH_CURRENT(ctx
, 0);
1761 _mesa_update_state(ctx
);
1763 if (!_mesa_validate_MultiDrawElementsIndirect(ctx
, mode
, type
, indirect
,
1768 if (skip_validated_draw(ctx
))
1771 vbo_validated_multidrawelementsindirect(ctx
, mode
, type
, indirect
,
1777 vbo_validated_multidrawarraysindirectcount(struct gl_context
*ctx
,
1780 GLintptr drawcount_offset
,
1781 GLsizei maxdrawcount
,
1784 struct vbo_context
*vbo
= vbo_context(ctx
);
1785 GLsizeiptr offset
= indirect
;
1787 if (maxdrawcount
== 0)
1790 vbo_bind_arrays(ctx
);
1792 vbo
->draw_indirect_prims(ctx
, mode
,
1793 ctx
->DrawIndirectBuffer
, offset
,
1794 maxdrawcount
, stride
,
1795 ctx
->ParameterBuffer
, drawcount_offset
, NULL
);
1797 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1803 vbo_validated_multidrawelementsindirectcount(struct gl_context
*ctx
,
1804 GLenum mode
, GLenum type
,
1806 GLintptr drawcount_offset
,
1807 GLsizei maxdrawcount
,
1810 struct vbo_context
*vbo
= vbo_context(ctx
);
1811 struct _mesa_index_buffer ib
;
1812 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1814 if (maxdrawcount
== 0)
1817 vbo_bind_arrays(ctx
);
1819 /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
1821 ib
.count
= 0; /* unknown */
1822 ib
.index_size
= sizeof_ib_type(type
);
1823 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1826 vbo
->draw_indirect_prims(ctx
, mode
,
1827 ctx
->DrawIndirectBuffer
, offset
,
1828 maxdrawcount
, stride
,
1829 ctx
->ParameterBuffer
, drawcount_offset
, &ib
);
1831 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1836 static void GLAPIENTRY
1837 vbo_exec_MultiDrawArraysIndirectCount(GLenum mode
, GLintptr indirect
,
1838 GLintptr drawcount_offset
,
1839 GLsizei maxdrawcount
, GLsizei stride
)
1841 GET_CURRENT_CONTEXT(ctx
);
1843 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1844 _mesa_debug(ctx
, "glMultiDrawArraysIndirectCountARB"
1845 "(%s, %lx, %lx, %i, %i)\n",
1846 _mesa_enum_to_string(mode
),
1847 (unsigned long) indirect
, (unsigned long) drawcount_offset
,
1848 maxdrawcount
, stride
);
1850 /* If <stride> is zero, the array elements are treated as tightly packed. */
1852 stride
= 4 * sizeof(GLuint
); /* sizeof(DrawArraysIndirectCommand) */
1854 if (_mesa_is_no_error_enabled(ctx
)) {
1855 FLUSH_CURRENT(ctx
, 0);
1858 _mesa_update_state(ctx
);
1860 if (!_mesa_validate_MultiDrawArraysIndirectCount(ctx
, mode
,
1863 maxdrawcount
, stride
))
1867 if (skip_validated_draw(ctx
))
1870 vbo_validated_multidrawarraysindirectcount(ctx
, mode
, indirect
,
1872 maxdrawcount
, stride
);
1876 static void GLAPIENTRY
1877 vbo_exec_MultiDrawElementsIndirectCount(GLenum mode
, GLenum type
,
1879 GLintptr drawcount_offset
,
1880 GLsizei maxdrawcount
, GLsizei stride
)
1882 GET_CURRENT_CONTEXT(ctx
);
1884 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1885 _mesa_debug(ctx
, "glMultiDrawElementsIndirectCountARB"
1886 "(%s, %s, %lx, %lx, %i, %i)\n",
1887 _mesa_enum_to_string(mode
), _mesa_enum_to_string(type
),
1888 (unsigned long) indirect
, (unsigned long) drawcount_offset
,
1889 maxdrawcount
, stride
);
1891 /* If <stride> is zero, the array elements are treated as tightly packed. */
1893 stride
= 5 * sizeof(GLuint
); /* sizeof(DrawElementsIndirectCommand) */
1895 if (_mesa_is_no_error_enabled(ctx
)) {
1896 FLUSH_CURRENT(ctx
, 0);
1899 _mesa_update_state(ctx
);
1901 if (!_mesa_validate_MultiDrawElementsIndirectCount(ctx
, mode
, type
,
1904 maxdrawcount
, stride
))
1908 if (skip_validated_draw(ctx
))
1911 vbo_validated_multidrawelementsindirectcount(ctx
, mode
, type
, indirect
,
1912 drawcount_offset
, maxdrawcount
,
1918 * Initialize the dispatch table with the VBO functions for drawing.
1921 vbo_initialize_exec_dispatch(const struct gl_context
*ctx
,
1922 struct _glapi_table
*exec
)
1924 SET_DrawArrays(exec
, vbo_exec_DrawArrays
);
1925 SET_DrawElements(exec
, vbo_exec_DrawElements
);
1927 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1928 SET_DrawRangeElements(exec
, vbo_exec_DrawRangeElements
);
1931 SET_MultiDrawArrays(exec
, vbo_exec_MultiDrawArrays
);
1932 SET_MultiDrawElementsEXT(exec
, vbo_exec_MultiDrawElements
);
1934 if (ctx
->API
== API_OPENGL_COMPAT
) {
1935 SET_Rectf(exec
, vbo_exec_Rectf
);
1936 SET_EvalMesh1(exec
, vbo_exec_EvalMesh1
);
1937 SET_EvalMesh2(exec
, vbo_exec_EvalMesh2
);
1940 if (ctx
->API
!= API_OPENGLES
&&
1941 ctx
->Extensions
.ARB_draw_elements_base_vertex
) {
1942 SET_DrawElementsBaseVertex(exec
, vbo_exec_DrawElementsBaseVertex
);
1943 SET_MultiDrawElementsBaseVertex(exec
,
1944 vbo_exec_MultiDrawElementsBaseVertex
);
1946 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1947 SET_DrawRangeElementsBaseVertex(exec
,
1948 vbo_exec_DrawRangeElementsBaseVertex
);
1949 SET_DrawElementsInstancedBaseVertex(exec
,
1950 vbo_exec_DrawElementsInstancedBaseVertex
);
1954 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1955 SET_DrawArraysInstancedBaseInstance(exec
,
1956 vbo_exec_DrawArraysInstancedBaseInstance
);
1957 SET_DrawElementsInstancedBaseInstance(exec
,
1958 vbo_exec_DrawElementsInstancedBaseInstance
);
1959 SET_DrawElementsInstancedBaseVertexBaseInstance(exec
,
1960 vbo_exec_DrawElementsInstancedBaseVertexBaseInstance
);
1963 if (ctx
->API
== API_OPENGL_CORE
|| _mesa_is_gles31(ctx
)) {
1964 SET_DrawArraysIndirect(exec
, vbo_exec_DrawArraysIndirect
);
1965 SET_DrawElementsIndirect(exec
, vbo_exec_DrawElementsIndirect
);
1968 if (ctx
->API
== API_OPENGL_CORE
) {
1969 SET_MultiDrawArraysIndirect(exec
, vbo_exec_MultiDrawArraysIndirect
);
1970 SET_MultiDrawElementsIndirect(exec
, vbo_exec_MultiDrawElementsIndirect
);
1971 SET_MultiDrawArraysIndirectCountARB(exec
,
1972 vbo_exec_MultiDrawArraysIndirectCount
);
1973 SET_MultiDrawElementsIndirectCountARB(exec
,
1974 vbo_exec_MultiDrawElementsIndirectCount
);
1977 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1978 SET_DrawArraysInstancedARB(exec
, vbo_exec_DrawArraysInstanced
);
1979 SET_DrawElementsInstancedARB(exec
, vbo_exec_DrawElementsInstanced
);
1982 if (_mesa_is_desktop_gl(ctx
)) {
1983 SET_DrawTransformFeedback(exec
, vbo_exec_DrawTransformFeedback
);
1984 SET_DrawTransformFeedbackStream(exec
,
1985 vbo_exec_DrawTransformFeedbackStream
);
1986 SET_DrawTransformFeedbackInstanced(exec
,
1987 vbo_exec_DrawTransformFeedbackInstanced
);
1988 SET_DrawTransformFeedbackStreamInstanced(exec
,
1989 vbo_exec_DrawTransformFeedbackStreamInstanced
);
1996 * The following functions are only used for OpenGL ES 1/2 support.
1997 * And some aren't even supported (yet) in ES 1/2.
2002 _mesa_DrawArrays(GLenum mode
, GLint first
, GLsizei count
)
2004 vbo_exec_DrawArrays(mode
, first
, count
);
2009 _mesa_DrawArraysInstanced(GLenum mode
, GLint first
, GLsizei count
,
2012 vbo_exec_DrawArraysInstanced(mode
, first
, count
, primcount
);
2017 _mesa_DrawElements(GLenum mode
, GLsizei count
, GLenum type
,
2018 const GLvoid
*indices
)
2020 vbo_exec_DrawElements(mode
, count
, type
, indices
);
2025 _mesa_DrawElementsBaseVertex(GLenum mode
, GLsizei count
, GLenum type
,
2026 const GLvoid
*indices
, GLint basevertex
)
2028 vbo_exec_DrawElementsBaseVertex(mode
, count
, type
, indices
, basevertex
);
2033 _mesa_DrawRangeElements(GLenum mode
, GLuint start
, GLuint end
, GLsizei count
,
2034 GLenum type
, const GLvoid
* indices
)
2036 vbo_exec_DrawRangeElements(mode
, start
, end
, count
, type
, indices
);
2041 _mesa_DrawRangeElementsBaseVertex(GLenum mode
, GLuint start
, GLuint end
,
2042 GLsizei count
, GLenum type
,
2043 const GLvoid
*indices
, GLint basevertex
)
2045 vbo_exec_DrawRangeElementsBaseVertex(mode
, start
, end
, count
, type
,
2046 indices
, basevertex
);
2051 _mesa_MultiDrawElementsEXT(GLenum mode
, const GLsizei
*count
, GLenum type
,
2052 const GLvoid
** indices
, GLsizei primcount
)
2054 vbo_exec_MultiDrawElements(mode
, count
, type
, indices
, primcount
);
2059 _mesa_MultiDrawElementsBaseVertex(GLenum mode
,
2060 const GLsizei
*count
, GLenum type
,
2061 const GLvoid
**indices
, GLsizei primcount
,
2062 const GLint
*basevertex
)
2064 vbo_exec_MultiDrawElementsBaseVertex(mode
, count
, type
, indices
,
2065 primcount
, basevertex
);
2070 _mesa_DrawTransformFeedback(GLenum mode
, GLuint name
)
2072 vbo_exec_DrawTransformFeedback(mode
, name
);