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
);
287 float *f
= (float *) (p
+ offset
);
290 int n
= (count
- 1) * (binding
->Stride
/ 4) + array
->Size
;
293 printf(" Data at offset %d:\n", offset
);
295 printf(" float[%d] = 0x%08x %f\n", i
, k
[i
], f
[i
]);
298 ctx
->Driver
.UnmapBuffer(ctx
, bufObj
, MAP_INTERNAL
);
305 * Set the vbo->exec->inputs[] pointers to point to the enabled
306 * vertex arrays. This depends on the current vertex program/shader
307 * being executed because of whether or not generic vertex arrays
308 * alias the conventional vertex arrays.
309 * For arrays that aren't enabled, we set the input[attrib] pointer
310 * to point at a zero-stride current value "array".
313 recalculate_input_bindings(struct gl_context
*ctx
)
315 struct vbo_context
*vbo
= vbo_context(ctx
);
316 struct vbo_exec_context
*exec
= &vbo
->exec
;
317 const struct gl_vertex_array_object
*vao
= ctx
->Array
.VAO
;
318 const struct gl_vertex_array
*vertexAttrib
= vao
->_VertexAttrib
;
319 const struct gl_vertex_array
**inputs
= &exec
->array
.inputs
[0];
321 /* May shuffle the position and generic0 bits around */
322 GLbitfield vp_inputs
= _mesa_get_vao_vp_inputs(vao
);
324 const enum vp_mode program_mode
= get_vp_mode(ctx
);
325 const GLubyte
*const map
= _vbo_attribute_alias_map
[program_mode
];
326 switch (program_mode
) {
328 /* When no vertex program is active (or the vertex program is generated
329 * from fixed-function state). We put the material values into the
330 * generic slots. Since the vao has no material arrays, mute these
331 * slots from the enabled arrays so that the current material values
332 * are pulled instead of the vao arrays.
334 vp_inputs
&= VERT_BIT_FF_ALL
;
339 /* There are no shaders in OpenGL ES 1.x, so this code path should be
340 * impossible to reach. The meta code is careful to not use shaders in
343 assert(ctx
->API
!= API_OPENGLES
);
345 /* In the compatibility profile of desktop OpenGL, the generic[0]
346 * attribute array aliases and overrides the legacy position array.
347 * Otherwise, legacy attributes available in the legacy slots,
348 * generic attributes in the generic slots and materials are not
349 * available as per-vertex attributes.
351 * In all other APIs, only the generic attributes exist, and none of the
352 * slots are considered "magic."
355 /* Other parts of the code assume that inputs[VERT_ATTRIB_POS] through
356 * inputs[VERT_ATTRIB_FF_MAX] will be non-NULL. However, in OpenGL
357 * ES 2.0+ or OpenGL core profile, none of these arrays should ever
360 if (ctx
->API
!= API_OPENGL_COMPAT
)
361 vp_inputs
&= VERT_BIT_GENERIC_ALL
;
368 const gl_attribute_map_mode mode
= vao
->_AttributeMapMode
;
369 const GLubyte
*const vao_map
= _mesa_vao_attribute_map
[mode
];
370 for (unsigned vp_attrib
= 0; vp_attrib
< VERT_ATTRIB_MAX
; ++vp_attrib
) {
371 if (unlikely(vp_inputs
& VERT_BIT(vp_attrib
)))
372 inputs
[vp_attrib
] = &vertexAttrib
[vao_map
[vp_attrib
]];
374 inputs
[vp_attrib
] = &vbo
->currval
[map
[vp_attrib
]];
377 _mesa_set_varying_vp_inputs(ctx
, vp_inputs
);
378 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewArray
;
383 * Examine the enabled vertex arrays to set the exec->array.inputs[] values.
384 * These will point to the arrays to actually use for drawing. Some will
385 * be user-provided arrays, other will be zero-stride const-valued arrays.
386 * Note that this might set the _NEW_VARYING_VP_INPUTS dirty flag so state
387 * validation must be done after this call.
390 vbo_bind_arrays(struct gl_context
*ctx
)
392 struct vbo_context
*vbo
= vbo_context(ctx
);
393 struct vbo_exec_context
*exec
= &vbo
->exec
;
395 _mesa_set_drawing_arrays(ctx
, vbo
->exec
.array
.inputs
);
397 if (exec
->array
.recalculate_inputs
) {
398 recalculate_input_bindings(ctx
);
399 exec
->array
.recalculate_inputs
= GL_FALSE
;
401 /* Again... because we may have changed the bitmask of per-vertex varying
402 * attributes. If we regenerate the fixed-function vertex program now
403 * we may be able to prune down the number of vertex attributes which we
404 * need in the shader.
407 /* Setting "validating" to TRUE prevents _mesa_update_state from
408 * invalidating what we just did.
410 exec
->validating
= GL_TRUE
;
411 _mesa_update_state(ctx
);
412 exec
->validating
= GL_FALSE
;
419 * Helper function called by the other DrawArrays() functions below.
420 * This is where we handle primitive restart for drawing non-indexed
421 * arrays. If primitive restart is enabled, it typically means
422 * splitting one DrawArrays() into two.
425 vbo_draw_arrays(struct gl_context
*ctx
, GLenum mode
, GLint start
,
426 GLsizei count
, GLuint numInstances
, GLuint baseInstance
,
429 struct vbo_context
*vbo
= vbo_context(ctx
);
430 struct _mesa_prim prim
;
432 if (skip_validated_draw(ctx
))
435 vbo_bind_arrays(ctx
);
437 /* OpenGL 4.5 says that primitive restart is ignored with non-indexed
440 memset(&prim
, 0, sizeof(prim
));
444 prim
.num_instances
= numInstances
;
445 prim
.base_instance
= baseInstance
;
446 prim
.draw_id
= drawID
;
447 prim
.is_indirect
= 0;
451 vbo
->draw_prims(ctx
, &prim
, 1, NULL
,
452 GL_TRUE
, start
, start
+ count
- 1, NULL
, 0, NULL
);
454 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
461 * Execute a glRectf() function.
463 static void GLAPIENTRY
464 vbo_exec_Rectf(GLfloat x1
, GLfloat y1
, GLfloat x2
, GLfloat y2
)
466 GET_CURRENT_CONTEXT(ctx
);
467 ASSERT_OUTSIDE_BEGIN_END(ctx
);
469 CALL_Begin(GET_DISPATCH(), (GL_QUADS
));
470 CALL_Vertex2f(GET_DISPATCH(), (x1
, y1
));
471 CALL_Vertex2f(GET_DISPATCH(), (x2
, y1
));
472 CALL_Vertex2f(GET_DISPATCH(), (x2
, y2
));
473 CALL_Vertex2f(GET_DISPATCH(), (x1
, y2
));
474 CALL_End(GET_DISPATCH(), ());
478 static void GLAPIENTRY
479 vbo_exec_EvalMesh1(GLenum mode
, GLint i1
, GLint i2
)
481 GET_CURRENT_CONTEXT(ctx
);
491 prim
= GL_LINE_STRIP
;
494 _mesa_error(ctx
, GL_INVALID_ENUM
, "glEvalMesh1(mode)");
498 /* No effect if vertex maps disabled.
500 if (!ctx
->Eval
.Map1Vertex4
&& !ctx
->Eval
.Map1Vertex3
)
503 du
= ctx
->Eval
.MapGrid1du
;
504 u
= ctx
->Eval
.MapGrid1u1
+ i1
* du
;
506 CALL_Begin(GET_DISPATCH(), (prim
));
507 for (i
= i1
; i
<= i2
; i
++, u
+= du
) {
508 CALL_EvalCoord1f(GET_DISPATCH(), (u
));
510 CALL_End(GET_DISPATCH(), ());
514 static void GLAPIENTRY
515 vbo_exec_EvalMesh2(GLenum mode
, GLint i1
, GLint i2
, GLint j1
, GLint j2
)
517 GET_CURRENT_CONTEXT(ctx
);
518 GLfloat u
, du
, v
, dv
, v1
, u1
;
527 _mesa_error(ctx
, GL_INVALID_ENUM
, "glEvalMesh2(mode)");
531 /* No effect if vertex maps disabled.
533 if (!ctx
->Eval
.Map2Vertex4
&& !ctx
->Eval
.Map2Vertex3
)
536 du
= ctx
->Eval
.MapGrid2du
;
537 dv
= ctx
->Eval
.MapGrid2dv
;
538 v1
= ctx
->Eval
.MapGrid2v1
+ j1
* dv
;
539 u1
= ctx
->Eval
.MapGrid2u1
+ i1
* du
;
543 CALL_Begin(GET_DISPATCH(), (GL_POINTS
));
544 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
545 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
546 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
549 CALL_End(GET_DISPATCH(), ());
552 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
553 CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP
));
554 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
555 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
557 CALL_End(GET_DISPATCH(), ());
559 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
560 CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP
));
561 for (v
= v1
, j
= j1
; j
<= j2
; j
++, v
+= dv
) {
562 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
564 CALL_End(GET_DISPATCH(), ());
568 for (v
= v1
, j
= j1
; j
< j2
; j
++, v
+= dv
) {
569 CALL_Begin(GET_DISPATCH(), (GL_TRIANGLE_STRIP
));
570 for (u
= u1
, i
= i1
; i
<= i2
; i
++, u
+= du
) {
571 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
));
572 CALL_EvalCoord2f(GET_DISPATCH(), (u
, v
+ dv
));
574 CALL_End(GET_DISPATCH(), ());
582 * Called from glDrawArrays when in immediate mode (not display list mode).
584 static void GLAPIENTRY
585 vbo_exec_DrawArrays(GLenum mode
, GLint start
, GLsizei count
)
587 GET_CURRENT_CONTEXT(ctx
);
589 if (MESA_VERBOSE
& VERBOSE_DRAW
)
590 _mesa_debug(ctx
, "glDrawArrays(%s, %d, %d)\n",
591 _mesa_enum_to_string(mode
), start
, count
);
593 if (_mesa_is_no_error_enabled(ctx
)) {
594 FLUSH_CURRENT(ctx
, 0);
597 _mesa_update_state(ctx
);
599 if (!_mesa_validate_DrawArrays(ctx
, mode
, count
))
604 check_draw_arrays_data(ctx
, start
, count
);
606 vbo_draw_arrays(ctx
, mode
, start
, count
, 1, 0, 0);
609 print_draw_arrays(ctx
, mode
, start
, count
);
614 * Called from glDrawArraysInstanced when in immediate mode (not
615 * display list mode).
617 static void GLAPIENTRY
618 vbo_exec_DrawArraysInstanced(GLenum mode
, GLint start
, GLsizei count
,
619 GLsizei numInstances
)
621 GET_CURRENT_CONTEXT(ctx
);
623 if (MESA_VERBOSE
& VERBOSE_DRAW
)
624 _mesa_debug(ctx
, "glDrawArraysInstanced(%s, %d, %d, %d)\n",
625 _mesa_enum_to_string(mode
), start
, count
, numInstances
);
628 if (_mesa_is_no_error_enabled(ctx
)) {
629 FLUSH_CURRENT(ctx
, 0);
632 _mesa_update_state(ctx
);
634 if (!_mesa_validate_DrawArraysInstanced(ctx
, mode
, start
, count
,
640 check_draw_arrays_data(ctx
, start
, count
);
642 vbo_draw_arrays(ctx
, mode
, start
, count
, numInstances
, 0, 0);
645 print_draw_arrays(ctx
, mode
, start
, count
);
650 * Called from glDrawArraysInstancedBaseInstance when in immediate mode.
652 static void GLAPIENTRY
653 vbo_exec_DrawArraysInstancedBaseInstance(GLenum mode
, GLint first
,
654 GLsizei count
, GLsizei numInstances
,
657 GET_CURRENT_CONTEXT(ctx
);
659 if (MESA_VERBOSE
& VERBOSE_DRAW
)
661 "glDrawArraysInstancedBaseInstance(%s, %d, %d, %d, %d)\n",
662 _mesa_enum_to_string(mode
), first
, count
,
663 numInstances
, baseInstance
);
665 if (_mesa_is_no_error_enabled(ctx
)) {
666 FLUSH_CURRENT(ctx
, 0);
669 _mesa_update_state(ctx
);
671 if (!_mesa_validate_DrawArraysInstanced(ctx
, mode
, first
, count
,
677 check_draw_arrays_data(ctx
, first
, count
);
679 vbo_draw_arrays(ctx
, mode
, first
, count
, numInstances
, baseInstance
, 0);
682 print_draw_arrays(ctx
, mode
, first
, count
);
687 * Called from glMultiDrawArrays when in immediate mode.
689 static void GLAPIENTRY
690 vbo_exec_MultiDrawArrays(GLenum mode
, const GLint
*first
,
691 const GLsizei
*count
, GLsizei primcount
)
693 GET_CURRENT_CONTEXT(ctx
);
696 if (MESA_VERBOSE
& VERBOSE_DRAW
)
698 "glMultiDrawArrays(%s, %p, %p, %d)\n",
699 _mesa_enum_to_string(mode
), first
, count
, primcount
);
701 if (_mesa_is_no_error_enabled(ctx
)) {
702 FLUSH_CURRENT(ctx
, 0);
705 _mesa_update_state(ctx
);
707 if (!_mesa_validate_MultiDrawArrays(ctx
, mode
, count
, primcount
))
711 for (i
= 0; i
< primcount
; i
++) {
714 check_draw_arrays_data(ctx
, first
[i
], count
[i
]);
716 /* The GL_ARB_shader_draw_parameters spec adds the following after the
717 * pseudo-code describing glMultiDrawArrays:
719 * "The index of the draw (<i> in the above pseudo-code) may be
720 * read by a vertex shader as <gl_DrawIDARB>, as described in
723 vbo_draw_arrays(ctx
, mode
, first
[i
], count
[i
], 1, 0, i
);
726 print_draw_arrays(ctx
, mode
, first
[i
], count
[i
]);
734 * Map GL_ELEMENT_ARRAY_BUFFER and print contents.
739 dump_element_buffer(struct gl_context
*ctx
, GLenum type
)
742 ctx
->Driver
.MapBufferRange(ctx
, 0,
743 ctx
->Array
.VAO
->IndexBufferObj
->Size
,
745 ctx
->Array
.VAO
->IndexBufferObj
,
748 case GL_UNSIGNED_BYTE
:
750 const GLubyte
*us
= (const GLubyte
*) map
;
752 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
; i
++) {
753 printf("%02x ", us
[i
]);
760 case GL_UNSIGNED_SHORT
:
762 const GLushort
*us
= (const GLushort
*) map
;
764 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
/ 2; i
++) {
765 printf("%04x ", us
[i
]);
772 case GL_UNSIGNED_INT
:
774 const GLuint
*us
= (const GLuint
*) map
;
776 for (i
= 0; i
< ctx
->Array
.VAO
->IndexBufferObj
->Size
/ 4; i
++) {
777 printf("%08x ", us
[i
]);
788 ctx
->Driver
.UnmapBuffer(ctx
, ctx
->Array
.VAO
->IndexBufferObj
, MAP_INTERNAL
);
794 skip_draw_elements(struct gl_context
*ctx
, GLsizei count
,
795 const GLvoid
*indices
)
800 /* Not using a VBO for indices, so avoid NULL pointer derefs later.
802 if (!_mesa_is_bufferobj(ctx
->Array
.VAO
->IndexBufferObj
) && indices
== NULL
)
805 if (skip_validated_draw(ctx
))
813 * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements.
814 * Do the rendering for a glDrawElements or glDrawRangeElements call after
815 * we've validated buffer bounds, etc.
818 vbo_validated_drawrangeelements(struct gl_context
*ctx
, GLenum mode
,
819 GLboolean index_bounds_valid
,
820 GLuint start
, GLuint end
,
821 GLsizei count
, GLenum type
,
822 const GLvoid
* indices
,
823 GLint basevertex
, GLuint numInstances
,
826 struct vbo_context
*vbo
= vbo_context(ctx
);
827 struct _mesa_index_buffer ib
;
828 struct _mesa_prim prim
;
830 if (!index_bounds_valid
) {
835 if (skip_draw_elements(ctx
, count
, indices
))
838 vbo_bind_arrays(ctx
);
841 ib
.index_size
= sizeof_ib_type(type
);
842 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
853 prim
.is_indirect
= 0;
854 prim
.basevertex
= basevertex
;
855 prim
.num_instances
= numInstances
;
856 prim
.base_instance
= baseInstance
;
859 /* Need to give special consideration to rendering a range of
860 * indices starting somewhere above zero. Typically the
861 * application is issuing multiple DrawRangeElements() to draw
862 * successive primitives layed out linearly in the vertex arrays.
863 * Unless the vertex arrays are all in a VBO (or locked as with
864 * CVA), the OpenGL semantics imply that we need to re-read or
865 * re-upload the vertex data on each draw call.
867 * In the case of hardware tnl, we want to avoid starting the
868 * upload at zero, as it will mean every draw call uploads an
869 * increasing amount of not-used vertex data. Worse - in the
870 * software tnl module, all those vertices might be transformed and
871 * lit but never rendered.
873 * If we just upload or transform the vertices in start..end,
874 * however, the indices will be incorrect.
876 * At this level, we don't know exactly what the requirements of
877 * the backend are going to be, though it will likely boil down to
880 * 1) Do nothing, everything is in a VBO and is processed once
883 * 2) Adjust the indices and vertex arrays so that start becomes
886 * Rather than doing anything here, I'll provide a helper function
887 * for the latter case elsewhere.
890 vbo
->draw_prims(ctx
, &prim
, 1, &ib
,
891 index_bounds_valid
, start
, end
, NULL
, 0, NULL
);
893 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
900 * Called by glDrawRangeElementsBaseVertex() in immediate mode.
902 static void GLAPIENTRY
903 vbo_exec_DrawRangeElementsBaseVertex(GLenum mode
, GLuint start
, GLuint end
,
904 GLsizei count
, GLenum type
,
905 const GLvoid
* indices
, GLint basevertex
)
907 static GLuint warnCount
= 0;
908 GLboolean index_bounds_valid
= GL_TRUE
;
910 /* This is only useful to catch invalid values in the "end" parameter
913 GLuint max_element
= 2 * 1000 * 1000 * 1000; /* just a big number */
915 GET_CURRENT_CONTEXT(ctx
);
917 if (MESA_VERBOSE
& VERBOSE_DRAW
)
919 "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n",
920 _mesa_enum_to_string(mode
), start
, end
, count
,
921 _mesa_enum_to_string(type
), indices
, basevertex
);
923 if (_mesa_is_no_error_enabled(ctx
)) {
924 FLUSH_CURRENT(ctx
, 0);
927 _mesa_update_state(ctx
);
929 if (!_mesa_validate_DrawRangeElements(ctx
, mode
, start
, end
, count
,
934 if ((int) end
+ basevertex
< 0 || start
+ basevertex
>= max_element
) {
935 /* The application requested we draw using a range of indices that's
936 * outside the bounds of the current VBO. This is invalid and appears
937 * to give undefined results. The safest thing to do is to simply
938 * ignore the range, in case the application botched their range tracking
939 * but did provide valid indices. Also issue a warning indicating that
940 * the application is broken.
942 if (warnCount
++ < 10) {
943 _mesa_warning(ctx
, "glDrawRangeElements(start %u, end %u, "
944 "basevertex %d, count %d, type 0x%x, indices=%p):\n"
945 "\trange is outside VBO bounds (max=%u); ignoring.\n"
946 "\tThis should be fixed in the application.",
947 start
, end
, basevertex
, count
, type
, indices
,
950 index_bounds_valid
= GL_FALSE
;
953 /* NOTE: It's important that 'end' is a reasonable value.
954 * in _tnl_draw_prims(), we use end to determine how many vertices
955 * to transform. If it's too large, we can unnecessarily split prims
956 * or we can read/write out of memory in several different places!
959 /* Catch/fix some potential user errors */
960 if (type
== GL_UNSIGNED_BYTE
) {
961 start
= MIN2(start
, 0xff);
962 end
= MIN2(end
, 0xff);
964 else if (type
== GL_UNSIGNED_SHORT
) {
965 start
= MIN2(start
, 0xffff);
966 end
= MIN2(end
, 0xffff);
970 printf("glDraw[Range]Elements{,BaseVertex}"
971 "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, "
973 start
, end
, type
, count
,
974 ctx
->Array
.VAO
->IndexBufferObj
->Name
, basevertex
);
977 if ((int) start
+ basevertex
< 0 || end
+ basevertex
>= max_element
)
978 index_bounds_valid
= GL_FALSE
;
981 check_draw_elements_data(ctx
, count
, type
, indices
, basevertex
);
983 (void) check_draw_elements_data
;
986 if (!index_bounds_valid
) {
991 vbo_validated_drawrangeelements(ctx
, mode
, index_bounds_valid
, start
, end
,
992 count
, type
, indices
, basevertex
, 1, 0);
997 * Called by glDrawRangeElements() in immediate mode.
999 static void GLAPIENTRY
1000 vbo_exec_DrawRangeElements(GLenum mode
, GLuint start
, GLuint end
,
1001 GLsizei count
, GLenum type
, const GLvoid
* indices
)
1003 if (MESA_VERBOSE
& VERBOSE_DRAW
) {
1004 GET_CURRENT_CONTEXT(ctx
);
1006 "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n",
1007 _mesa_enum_to_string(mode
), start
, end
, count
,
1008 _mesa_enum_to_string(type
), indices
);
1011 vbo_exec_DrawRangeElementsBaseVertex(mode
, start
, end
, count
, type
,
1017 * Called by glDrawElements() in immediate mode.
1019 static void GLAPIENTRY
1020 vbo_exec_DrawElements(GLenum mode
, GLsizei count
, GLenum type
,
1021 const GLvoid
* indices
)
1023 GET_CURRENT_CONTEXT(ctx
);
1025 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1026 _mesa_debug(ctx
, "glDrawElements(%s, %u, %s, %p)\n",
1027 _mesa_enum_to_string(mode
), count
,
1028 _mesa_enum_to_string(type
), indices
);
1030 if (_mesa_is_no_error_enabled(ctx
)) {
1031 FLUSH_CURRENT(ctx
, 0);
1034 _mesa_update_state(ctx
);
1036 if (!_mesa_validate_DrawElements(ctx
, mode
, count
, type
, indices
))
1040 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1041 count
, type
, indices
, 0, 1, 0);
1046 * Called by glDrawElementsBaseVertex() in immediate mode.
1048 static void GLAPIENTRY
1049 vbo_exec_DrawElementsBaseVertex(GLenum mode
, GLsizei count
, GLenum type
,
1050 const GLvoid
* indices
, GLint basevertex
)
1052 GET_CURRENT_CONTEXT(ctx
);
1054 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1055 _mesa_debug(ctx
, "glDrawElements(%s, %u, %s, %p)\n",
1056 _mesa_enum_to_string(mode
), count
,
1057 _mesa_enum_to_string(type
), indices
);
1059 if (_mesa_is_no_error_enabled(ctx
)) {
1060 FLUSH_CURRENT(ctx
, 0);
1063 _mesa_update_state(ctx
);
1065 if (!_mesa_validate_DrawElements(ctx
, mode
, count
, type
, indices
))
1069 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1070 count
, type
, indices
, basevertex
, 1, 0);
1075 * Called by glDrawElementsInstanced() in immediate mode.
1077 static void GLAPIENTRY
1078 vbo_exec_DrawElementsInstanced(GLenum mode
, GLsizei count
, GLenum type
,
1079 const GLvoid
* indices
, GLsizei numInstances
)
1081 GET_CURRENT_CONTEXT(ctx
);
1083 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1084 _mesa_debug(ctx
, "glDrawElements(%s, %u, %s, %p)\n",
1085 _mesa_enum_to_string(mode
), count
,
1086 _mesa_enum_to_string(type
), indices
);
1088 if (_mesa_is_no_error_enabled(ctx
)) {
1089 FLUSH_CURRENT(ctx
, 0);
1092 _mesa_update_state(ctx
);
1094 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
,
1095 indices
, numInstances
))
1099 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1100 count
, type
, indices
, 0, numInstances
, 0);
1105 * Called by glDrawElementsInstancedBaseVertex() in immediate mode.
1107 static void GLAPIENTRY
1108 vbo_exec_DrawElementsInstancedBaseVertex(GLenum mode
, GLsizei count
,
1109 GLenum type
, const GLvoid
* indices
,
1110 GLsizei numInstances
,
1113 GET_CURRENT_CONTEXT(ctx
);
1115 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1117 "glDrawElementsInstancedBaseVertex"
1118 "(%s, %d, %s, %p, %d; %d)\n",
1119 _mesa_enum_to_string(mode
), count
,
1120 _mesa_enum_to_string(type
), indices
,
1121 numInstances
, basevertex
);
1123 if (_mesa_is_no_error_enabled(ctx
)) {
1124 FLUSH_CURRENT(ctx
, 0);
1127 _mesa_update_state(ctx
);
1129 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
,
1130 indices
, numInstances
))
1134 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1135 count
, type
, indices
,
1136 basevertex
, numInstances
, 0);
1141 * Called by glDrawElementsInstancedBaseInstance() in immediate mode.
1143 static void GLAPIENTRY
1144 vbo_exec_DrawElementsInstancedBaseInstance(GLenum mode
, GLsizei count
,
1146 const GLvoid
*indices
,
1147 GLsizei numInstances
,
1148 GLuint baseInstance
)
1150 GET_CURRENT_CONTEXT(ctx
);
1152 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1154 "glDrawElementsInstancedBaseInstance"
1155 "(%s, %d, %s, %p, %d, %d)\n",
1156 _mesa_enum_to_string(mode
), count
,
1157 _mesa_enum_to_string(type
), indices
,
1158 numInstances
, baseInstance
);
1160 if (_mesa_is_no_error_enabled(ctx
)) {
1161 FLUSH_CURRENT(ctx
, 0);
1164 _mesa_update_state(ctx
);
1166 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
,
1167 indices
, numInstances
))
1171 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1172 count
, type
, indices
, 0, numInstances
,
1178 * Called by glDrawElementsInstancedBaseVertexBaseInstance() in immediate mode.
1180 static void GLAPIENTRY
1181 vbo_exec_DrawElementsInstancedBaseVertexBaseInstance(GLenum mode
,
1184 const GLvoid
*indices
,
1185 GLsizei numInstances
,
1187 GLuint baseInstance
)
1189 GET_CURRENT_CONTEXT(ctx
);
1191 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1193 "glDrawElementsInstancedBaseVertexBaseInstance"
1194 "(%s, %d, %s, %p, %d, %d, %d)\n",
1195 _mesa_enum_to_string(mode
), count
,
1196 _mesa_enum_to_string(type
), indices
,
1197 numInstances
, basevertex
, baseInstance
);
1199 if (_mesa_is_no_error_enabled(ctx
)) {
1200 FLUSH_CURRENT(ctx
, 0);
1203 _mesa_update_state(ctx
);
1205 if (!_mesa_validate_DrawElementsInstanced(ctx
, mode
, count
, type
,
1206 indices
, numInstances
))
1210 vbo_validated_drawrangeelements(ctx
, mode
, GL_FALSE
, 0, ~0,
1211 count
, type
, indices
, basevertex
,
1212 numInstances
, baseInstance
);
1217 * Inner support for both _mesa_MultiDrawElements() and
1218 * _mesa_MultiDrawRangeElements().
1219 * This does the actual rendering after we've checked array indexes, etc.
1222 vbo_validated_multidrawelements(struct gl_context
*ctx
, GLenum mode
,
1223 const GLsizei
*count
, GLenum type
,
1224 const GLvoid
* const *indices
,
1225 GLsizei primcount
, const GLint
*basevertex
)
1227 struct vbo_context
*vbo
= vbo_context(ctx
);
1228 struct _mesa_index_buffer ib
;
1229 struct _mesa_prim
*prim
;
1230 unsigned int index_type_size
= sizeof_ib_type(type
);
1231 uintptr_t min_index_ptr
, max_index_ptr
;
1232 GLboolean fallback
= GL_FALSE
;
1238 prim
= calloc(primcount
, sizeof(*prim
));
1240 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glMultiDrawElements");
1244 vbo_bind_arrays(ctx
);
1246 min_index_ptr
= (uintptr_t) indices
[0];
1248 for (i
= 0; i
< primcount
; i
++) {
1249 min_index_ptr
= MIN2(min_index_ptr
, (uintptr_t) indices
[i
]);
1250 max_index_ptr
= MAX2(max_index_ptr
, (uintptr_t) indices
[i
] +
1251 index_type_size
* count
[i
]);
1254 /* Check if we can handle this thing as a bunch of index offsets from the
1255 * same index pointer. If we can't, then we have to fall back to doing
1256 * a draw_prims per primitive.
1257 * Check that the difference between each prim's indexes is a multiple of
1258 * the index/element size.
1260 if (index_type_size
!= 1) {
1261 for (i
= 0; i
< primcount
; i
++) {
1262 if ((((uintptr_t) indices
[i
] - min_index_ptr
) % index_type_size
) !=
1270 /* Draw primitives individually if one count is zero, so we can easily skip
1273 for (i
= 0; i
< primcount
; i
++) {
1274 if (count
[i
] == 0) {
1280 /* If the index buffer isn't in a VBO, then treating the application's
1281 * subranges of the index buffer as one large index buffer may lead to
1282 * us reading unmapped memory.
1284 if (!_mesa_is_bufferobj(ctx
->Array
.VAO
->IndexBufferObj
))
1288 ib
.count
= (max_index_ptr
- min_index_ptr
) / index_type_size
;
1289 ib
.index_size
= sizeof_ib_type(type
);
1290 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1291 ib
.ptr
= (void *) min_index_ptr
;
1293 for (i
= 0; i
< primcount
; i
++) {
1294 prim
[i
].begin
= (i
== 0);
1295 prim
[i
].end
= (i
== primcount
- 1);
1298 prim
[i
].mode
= mode
;
1300 ((uintptr_t) indices
[i
] - min_index_ptr
) / index_type_size
;
1301 prim
[i
].count
= count
[i
];
1302 prim
[i
].indexed
= 1;
1303 prim
[i
].num_instances
= 1;
1304 prim
[i
].base_instance
= 0;
1305 prim
[i
].draw_id
= i
;
1306 prim
[i
].is_indirect
= 0;
1307 if (basevertex
!= NULL
)
1308 prim
[i
].basevertex
= basevertex
[i
];
1310 prim
[i
].basevertex
= 0;
1313 vbo
->draw_prims(ctx
, prim
, primcount
, &ib
,
1314 false, 0, ~0, NULL
, 0, NULL
);
1317 /* render one prim at a time */
1318 for (i
= 0; i
< primcount
; i
++) {
1321 ib
.count
= count
[i
];
1322 ib
.index_size
= sizeof_ib_type(type
);
1323 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1324 ib
.ptr
= indices
[i
];
1330 prim
[0].mode
= mode
;
1332 prim
[0].count
= count
[i
];
1333 prim
[0].indexed
= 1;
1334 prim
[0].num_instances
= 1;
1335 prim
[0].base_instance
= 0;
1336 prim
[0].draw_id
= i
;
1337 prim
[0].is_indirect
= 0;
1338 if (basevertex
!= NULL
)
1339 prim
[0].basevertex
= basevertex
[i
];
1341 prim
[0].basevertex
= 0;
1343 vbo
->draw_prims(ctx
, prim
, 1, &ib
, false, 0, ~0, NULL
, 0, NULL
);
1349 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
1355 static void GLAPIENTRY
1356 vbo_exec_MultiDrawElements(GLenum mode
,
1357 const GLsizei
*count
, GLenum type
,
1358 const GLvoid
* const *indices
, GLsizei primcount
)
1360 GET_CURRENT_CONTEXT(ctx
);
1362 if (!_mesa_validate_MultiDrawElements(ctx
, mode
, count
, type
, indices
,
1366 if (skip_validated_draw(ctx
))
1369 vbo_validated_multidrawelements(ctx
, mode
, count
, type
, indices
, primcount
,
1374 static void GLAPIENTRY
1375 vbo_exec_MultiDrawElementsBaseVertex(GLenum mode
,
1376 const GLsizei
*count
, GLenum type
,
1377 const GLvoid
* const *indices
,
1379 const GLsizei
*basevertex
)
1381 GET_CURRENT_CONTEXT(ctx
);
1383 if (_mesa_is_no_error_enabled(ctx
)) {
1384 FLUSH_CURRENT(ctx
, 0);
1387 _mesa_update_state(ctx
);
1389 if (!_mesa_validate_MultiDrawElements(ctx
, mode
, count
, type
, indices
,
1394 if (skip_validated_draw(ctx
))
1397 vbo_validated_multidrawelements(ctx
, mode
, count
, type
, indices
, primcount
,
1403 vbo_draw_transform_feedback(struct gl_context
*ctx
, GLenum mode
,
1404 struct gl_transform_feedback_object
*obj
,
1405 GLuint stream
, GLuint numInstances
)
1407 struct vbo_context
*vbo
= vbo_context(ctx
);
1408 struct _mesa_prim prim
;
1410 if (_mesa_is_no_error_enabled(ctx
)) {
1411 FLUSH_CURRENT(ctx
, 0);
1414 _mesa_update_state(ctx
);
1416 if (!_mesa_validate_DrawTransformFeedback(ctx
, mode
, obj
, stream
,
1422 if (ctx
->Driver
.GetTransformFeedbackVertexCount
&&
1423 (ctx
->Const
.AlwaysUseGetTransformFeedbackVertexCount
||
1424 !_mesa_all_varyings_in_vbos(ctx
->Array
.VAO
))) {
1426 ctx
->Driver
.GetTransformFeedbackVertexCount(ctx
, obj
, stream
);
1427 vbo_draw_arrays(ctx
, mode
, 0, n
, numInstances
, 0, 0);
1431 if (skip_validated_draw(ctx
))
1434 vbo_bind_arrays(ctx
);
1436 /* init most fields to zero */
1437 memset(&prim
, 0, sizeof(prim
));
1441 prim
.num_instances
= numInstances
;
1442 prim
.base_instance
= 0;
1443 prim
.is_indirect
= 0;
1445 /* Maybe we should do some primitive splitting for primitive restart
1446 * (like in DrawArrays), but we have no way to know how many vertices
1447 * will be rendered. */
1449 vbo
->draw_prims(ctx
, &prim
, 1, NULL
, GL_FALSE
, 0, ~0, obj
, stream
, NULL
);
1451 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
) {
1458 * Like DrawArrays, but take the count from a transform feedback object.
1459 * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc.
1460 * \param name the transform feedback object
1461 * User still has to setup of the vertex attribute info with
1462 * glVertexPointer, glColorPointer, etc.
1463 * Part of GL_ARB_transform_feedback2.
1465 static void GLAPIENTRY
1466 vbo_exec_DrawTransformFeedback(GLenum mode
, GLuint name
)
1468 GET_CURRENT_CONTEXT(ctx
);
1469 struct gl_transform_feedback_object
*obj
=
1470 _mesa_lookup_transform_feedback_object(ctx
, name
);
1472 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1473 _mesa_debug(ctx
, "glDrawTransformFeedback(%s, %d)\n",
1474 _mesa_enum_to_string(mode
), name
);
1476 vbo_draw_transform_feedback(ctx
, mode
, obj
, 0, 1);
1480 static void GLAPIENTRY
1481 vbo_exec_DrawTransformFeedbackStream(GLenum mode
, GLuint name
, GLuint stream
)
1483 GET_CURRENT_CONTEXT(ctx
);
1484 struct gl_transform_feedback_object
*obj
=
1485 _mesa_lookup_transform_feedback_object(ctx
, name
);
1487 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1488 _mesa_debug(ctx
, "glDrawTransformFeedbackStream(%s, %u, %u)\n",
1489 _mesa_enum_to_string(mode
), name
, stream
);
1491 vbo_draw_transform_feedback(ctx
, mode
, obj
, stream
, 1);
1495 static void GLAPIENTRY
1496 vbo_exec_DrawTransformFeedbackInstanced(GLenum mode
, GLuint name
,
1499 GET_CURRENT_CONTEXT(ctx
);
1500 struct gl_transform_feedback_object
*obj
=
1501 _mesa_lookup_transform_feedback_object(ctx
, name
);
1503 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1504 _mesa_debug(ctx
, "glDrawTransformFeedbackInstanced(%s, %d)\n",
1505 _mesa_enum_to_string(mode
), name
);
1507 vbo_draw_transform_feedback(ctx
, mode
, obj
, 0, primcount
);
1511 static void GLAPIENTRY
1512 vbo_exec_DrawTransformFeedbackStreamInstanced(GLenum mode
, GLuint name
,
1516 GET_CURRENT_CONTEXT(ctx
);
1517 struct gl_transform_feedback_object
*obj
=
1518 _mesa_lookup_transform_feedback_object(ctx
, name
);
1520 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1521 _mesa_debug(ctx
, "glDrawTransformFeedbackStreamInstanced"
1522 "(%s, %u, %u, %i)\n",
1523 _mesa_enum_to_string(mode
), name
, stream
, primcount
);
1525 vbo_draw_transform_feedback(ctx
, mode
, obj
, stream
, primcount
);
1530 vbo_validated_drawarraysindirect(struct gl_context
*ctx
,
1531 GLenum mode
, const GLvoid
*indirect
)
1533 struct vbo_context
*vbo
= vbo_context(ctx
);
1535 vbo_bind_arrays(ctx
);
1537 vbo
->draw_indirect_prims(ctx
, mode
,
1538 ctx
->DrawIndirectBuffer
, (GLsizeiptr
) indirect
,
1539 1 /* draw_count */ , 16 /* stride */ ,
1542 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1548 vbo_validated_multidrawarraysindirect(struct gl_context
*ctx
,
1550 const GLvoid
*indirect
,
1551 GLsizei primcount
, GLsizei stride
)
1553 struct vbo_context
*vbo
= vbo_context(ctx
);
1554 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1559 vbo_bind_arrays(ctx
);
1561 vbo
->draw_indirect_prims(ctx
, mode
, ctx
->DrawIndirectBuffer
, offset
,
1562 primcount
, stride
, NULL
, 0, NULL
);
1564 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1570 vbo_validated_drawelementsindirect(struct gl_context
*ctx
,
1571 GLenum mode
, GLenum type
,
1572 const GLvoid
*indirect
)
1574 struct vbo_context
*vbo
= vbo_context(ctx
);
1575 struct _mesa_index_buffer ib
;
1577 vbo_bind_arrays(ctx
);
1579 ib
.count
= 0; /* unknown */
1580 ib
.index_size
= sizeof_ib_type(type
);
1581 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1584 vbo
->draw_indirect_prims(ctx
, mode
,
1585 ctx
->DrawIndirectBuffer
, (GLsizeiptr
) indirect
,
1586 1 /* draw_count */ , 20 /* stride */ ,
1589 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1595 vbo_validated_multidrawelementsindirect(struct gl_context
*ctx
,
1596 GLenum mode
, GLenum type
,
1597 const GLvoid
*indirect
,
1598 GLsizei primcount
, GLsizei stride
)
1600 struct vbo_context
*vbo
= vbo_context(ctx
);
1601 struct _mesa_index_buffer ib
;
1602 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1607 vbo_bind_arrays(ctx
);
1609 /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
1611 ib
.count
= 0; /* unknown */
1612 ib
.index_size
= sizeof_ib_type(type
);
1613 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1616 vbo
->draw_indirect_prims(ctx
, mode
,
1617 ctx
->DrawIndirectBuffer
, offset
,
1618 primcount
, stride
, NULL
, 0, &ib
);
1620 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1626 * Like [Multi]DrawArrays/Elements, but they take most arguments from
1629 static void GLAPIENTRY
1630 vbo_exec_DrawArraysIndirect(GLenum mode
, const GLvoid
*indirect
)
1632 GET_CURRENT_CONTEXT(ctx
);
1634 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1635 _mesa_debug(ctx
, "glDrawArraysIndirect(%s, %p)\n",
1636 _mesa_enum_to_string(mode
), indirect
);
1638 if (_mesa_is_no_error_enabled(ctx
)) {
1639 FLUSH_CURRENT(ctx
, 0);
1642 _mesa_update_state(ctx
);
1644 if (!_mesa_validate_DrawArraysIndirect(ctx
, mode
, indirect
))
1648 if (skip_validated_draw(ctx
))
1651 vbo_validated_drawarraysindirect(ctx
, mode
, indirect
);
1655 static void GLAPIENTRY
1656 vbo_exec_DrawElementsIndirect(GLenum mode
, GLenum type
, const GLvoid
*indirect
)
1658 GET_CURRENT_CONTEXT(ctx
);
1660 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1661 _mesa_debug(ctx
, "glDrawElementsIndirect(%s, %s, %p)\n",
1662 _mesa_enum_to_string(mode
),
1663 _mesa_enum_to_string(type
), indirect
);
1665 if (_mesa_is_no_error_enabled(ctx
)) {
1666 FLUSH_CURRENT(ctx
, 0);
1669 _mesa_update_state(ctx
);
1671 if (!_mesa_validate_DrawElementsIndirect(ctx
, mode
, type
, indirect
))
1675 if (skip_validated_draw(ctx
))
1678 vbo_validated_drawelementsindirect(ctx
, mode
, type
, indirect
);
1682 static void GLAPIENTRY
1683 vbo_exec_MultiDrawArraysIndirect(GLenum mode
, const GLvoid
*indirect
,
1684 GLsizei primcount
, GLsizei stride
)
1686 GET_CURRENT_CONTEXT(ctx
);
1688 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1689 _mesa_debug(ctx
, "glMultiDrawArraysIndirect(%s, %p, %i, %i)\n",
1690 _mesa_enum_to_string(mode
), indirect
, primcount
, stride
);
1692 /* If <stride> is zero, the array elements are treated as tightly packed. */
1694 stride
= 4 * sizeof(GLuint
); /* sizeof(DrawArraysIndirectCommand) */
1696 if (_mesa_is_no_error_enabled(ctx
)) {
1697 FLUSH_CURRENT(ctx
, 0);
1700 _mesa_update_state(ctx
);
1702 if (!_mesa_validate_MultiDrawArraysIndirect(ctx
, mode
, indirect
,
1707 if (skip_validated_draw(ctx
))
1710 vbo_validated_multidrawarraysindirect(ctx
, mode
, indirect
,
1715 static void GLAPIENTRY
1716 vbo_exec_MultiDrawElementsIndirect(GLenum mode
, GLenum type
,
1717 const GLvoid
*indirect
,
1718 GLsizei primcount
, GLsizei stride
)
1720 GET_CURRENT_CONTEXT(ctx
);
1722 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1723 _mesa_debug(ctx
, "glMultiDrawElementsIndirect(%s, %s, %p, %i, %i)\n",
1724 _mesa_enum_to_string(mode
),
1725 _mesa_enum_to_string(type
), indirect
, primcount
, stride
);
1727 /* If <stride> is zero, the array elements are treated as tightly packed. */
1729 stride
= 5 * sizeof(GLuint
); /* sizeof(DrawElementsIndirectCommand) */
1731 if (_mesa_is_no_error_enabled(ctx
)) {
1732 FLUSH_CURRENT(ctx
, 0);
1735 _mesa_update_state(ctx
);
1737 if (!_mesa_validate_MultiDrawElementsIndirect(ctx
, mode
, type
, indirect
,
1742 if (skip_validated_draw(ctx
))
1745 vbo_validated_multidrawelementsindirect(ctx
, mode
, type
, indirect
,
1751 vbo_validated_multidrawarraysindirectcount(struct gl_context
*ctx
,
1754 GLintptr drawcount_offset
,
1755 GLsizei maxdrawcount
,
1758 struct vbo_context
*vbo
= vbo_context(ctx
);
1759 GLsizeiptr offset
= indirect
;
1761 if (maxdrawcount
== 0)
1764 vbo_bind_arrays(ctx
);
1766 vbo
->draw_indirect_prims(ctx
, mode
,
1767 ctx
->DrawIndirectBuffer
, offset
,
1768 maxdrawcount
, stride
,
1769 ctx
->ParameterBuffer
, drawcount_offset
, NULL
);
1771 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1777 vbo_validated_multidrawelementsindirectcount(struct gl_context
*ctx
,
1778 GLenum mode
, GLenum type
,
1780 GLintptr drawcount_offset
,
1781 GLsizei maxdrawcount
,
1784 struct vbo_context
*vbo
= vbo_context(ctx
);
1785 struct _mesa_index_buffer ib
;
1786 GLsizeiptr offset
= (GLsizeiptr
) indirect
;
1788 if (maxdrawcount
== 0)
1791 vbo_bind_arrays(ctx
);
1793 /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
1795 ib
.count
= 0; /* unknown */
1796 ib
.index_size
= sizeof_ib_type(type
);
1797 ib
.obj
= ctx
->Array
.VAO
->IndexBufferObj
;
1800 vbo
->draw_indirect_prims(ctx
, mode
,
1801 ctx
->DrawIndirectBuffer
, offset
,
1802 maxdrawcount
, stride
,
1803 ctx
->ParameterBuffer
, drawcount_offset
, &ib
);
1805 if (MESA_DEBUG_FLAGS
& DEBUG_ALWAYS_FLUSH
)
1810 static void GLAPIENTRY
1811 vbo_exec_MultiDrawArraysIndirectCount(GLenum mode
, GLintptr indirect
,
1812 GLintptr drawcount_offset
,
1813 GLsizei maxdrawcount
, GLsizei stride
)
1815 GET_CURRENT_CONTEXT(ctx
);
1817 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1818 _mesa_debug(ctx
, "glMultiDrawArraysIndirectCountARB"
1819 "(%s, %lx, %lx, %i, %i)\n",
1820 _mesa_enum_to_string(mode
),
1821 (unsigned long) indirect
, (unsigned long) drawcount_offset
,
1822 maxdrawcount
, stride
);
1824 /* If <stride> is zero, the array elements are treated as tightly packed. */
1826 stride
= 4 * sizeof(GLuint
); /* sizeof(DrawArraysIndirectCommand) */
1828 if (_mesa_is_no_error_enabled(ctx
)) {
1829 FLUSH_CURRENT(ctx
, 0);
1832 _mesa_update_state(ctx
);
1834 if (!_mesa_validate_MultiDrawArraysIndirectCount(ctx
, mode
,
1837 maxdrawcount
, stride
))
1841 if (skip_validated_draw(ctx
))
1844 vbo_validated_multidrawarraysindirectcount(ctx
, mode
, indirect
,
1846 maxdrawcount
, stride
);
1850 static void GLAPIENTRY
1851 vbo_exec_MultiDrawElementsIndirectCount(GLenum mode
, GLenum type
,
1853 GLintptr drawcount_offset
,
1854 GLsizei maxdrawcount
, GLsizei stride
)
1856 GET_CURRENT_CONTEXT(ctx
);
1858 if (MESA_VERBOSE
& VERBOSE_DRAW
)
1859 _mesa_debug(ctx
, "glMultiDrawElementsIndirectCountARB"
1860 "(%s, %s, %lx, %lx, %i, %i)\n",
1861 _mesa_enum_to_string(mode
), _mesa_enum_to_string(type
),
1862 (unsigned long) indirect
, (unsigned long) drawcount_offset
,
1863 maxdrawcount
, stride
);
1865 /* If <stride> is zero, the array elements are treated as tightly packed. */
1867 stride
= 5 * sizeof(GLuint
); /* sizeof(DrawElementsIndirectCommand) */
1869 if (_mesa_is_no_error_enabled(ctx
)) {
1870 FLUSH_CURRENT(ctx
, 0);
1873 _mesa_update_state(ctx
);
1875 if (!_mesa_validate_MultiDrawElementsIndirectCount(ctx
, mode
, type
,
1878 maxdrawcount
, stride
))
1882 if (skip_validated_draw(ctx
))
1885 vbo_validated_multidrawelementsindirectcount(ctx
, mode
, type
, indirect
,
1886 drawcount_offset
, maxdrawcount
,
1892 * Initialize the dispatch table with the VBO functions for drawing.
1895 vbo_initialize_exec_dispatch(const struct gl_context
*ctx
,
1896 struct _glapi_table
*exec
)
1898 SET_DrawArrays(exec
, vbo_exec_DrawArrays
);
1899 SET_DrawElements(exec
, vbo_exec_DrawElements
);
1901 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1902 SET_DrawRangeElements(exec
, vbo_exec_DrawRangeElements
);
1905 SET_MultiDrawArrays(exec
, vbo_exec_MultiDrawArrays
);
1906 SET_MultiDrawElementsEXT(exec
, vbo_exec_MultiDrawElements
);
1908 if (ctx
->API
== API_OPENGL_COMPAT
) {
1909 SET_Rectf(exec
, vbo_exec_Rectf
);
1910 SET_EvalMesh1(exec
, vbo_exec_EvalMesh1
);
1911 SET_EvalMesh2(exec
, vbo_exec_EvalMesh2
);
1914 if (ctx
->API
!= API_OPENGLES
&&
1915 ctx
->Extensions
.ARB_draw_elements_base_vertex
) {
1916 SET_DrawElementsBaseVertex(exec
, vbo_exec_DrawElementsBaseVertex
);
1917 SET_MultiDrawElementsBaseVertex(exec
,
1918 vbo_exec_MultiDrawElementsBaseVertex
);
1920 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1921 SET_DrawRangeElementsBaseVertex(exec
,
1922 vbo_exec_DrawRangeElementsBaseVertex
);
1923 SET_DrawElementsInstancedBaseVertex(exec
,
1924 vbo_exec_DrawElementsInstancedBaseVertex
);
1928 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1929 SET_DrawArraysInstancedBaseInstance(exec
,
1930 vbo_exec_DrawArraysInstancedBaseInstance
);
1931 SET_DrawElementsInstancedBaseInstance(exec
,
1932 vbo_exec_DrawElementsInstancedBaseInstance
);
1933 SET_DrawElementsInstancedBaseVertexBaseInstance(exec
,
1934 vbo_exec_DrawElementsInstancedBaseVertexBaseInstance
);
1937 if (ctx
->API
== API_OPENGL_CORE
|| _mesa_is_gles31(ctx
)) {
1938 SET_DrawArraysIndirect(exec
, vbo_exec_DrawArraysIndirect
);
1939 SET_DrawElementsIndirect(exec
, vbo_exec_DrawElementsIndirect
);
1942 if (ctx
->API
== API_OPENGL_CORE
) {
1943 SET_MultiDrawArraysIndirect(exec
, vbo_exec_MultiDrawArraysIndirect
);
1944 SET_MultiDrawElementsIndirect(exec
, vbo_exec_MultiDrawElementsIndirect
);
1945 SET_MultiDrawArraysIndirectCountARB(exec
,
1946 vbo_exec_MultiDrawArraysIndirectCount
);
1947 SET_MultiDrawElementsIndirectCountARB(exec
,
1948 vbo_exec_MultiDrawElementsIndirectCount
);
1951 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
1952 SET_DrawArraysInstancedARB(exec
, vbo_exec_DrawArraysInstanced
);
1953 SET_DrawElementsInstancedARB(exec
, vbo_exec_DrawElementsInstanced
);
1956 if (_mesa_is_desktop_gl(ctx
)) {
1957 SET_DrawTransformFeedback(exec
, vbo_exec_DrawTransformFeedback
);
1958 SET_DrawTransformFeedbackStream(exec
,
1959 vbo_exec_DrawTransformFeedbackStream
);
1960 SET_DrawTransformFeedbackInstanced(exec
,
1961 vbo_exec_DrawTransformFeedbackInstanced
);
1962 SET_DrawTransformFeedbackStreamInstanced(exec
,
1963 vbo_exec_DrawTransformFeedbackStreamInstanced
);
1970 * The following functions are only used for OpenGL ES 1/2 support.
1971 * And some aren't even supported (yet) in ES 1/2.
1976 _mesa_DrawArrays(GLenum mode
, GLint first
, GLsizei count
)
1978 vbo_exec_DrawArrays(mode
, first
, count
);
1983 _mesa_DrawArraysInstanced(GLenum mode
, GLint first
, GLsizei count
,
1986 vbo_exec_DrawArraysInstanced(mode
, first
, count
, primcount
);
1991 _mesa_DrawElements(GLenum mode
, GLsizei count
, GLenum type
,
1992 const GLvoid
*indices
)
1994 vbo_exec_DrawElements(mode
, count
, type
, indices
);
1999 _mesa_DrawElementsBaseVertex(GLenum mode
, GLsizei count
, GLenum type
,
2000 const GLvoid
*indices
, GLint basevertex
)
2002 vbo_exec_DrawElementsBaseVertex(mode
, count
, type
, indices
, basevertex
);
2007 _mesa_DrawRangeElements(GLenum mode
, GLuint start
, GLuint end
, GLsizei count
,
2008 GLenum type
, const GLvoid
* indices
)
2010 vbo_exec_DrawRangeElements(mode
, start
, end
, count
, type
, indices
);
2015 _mesa_DrawRangeElementsBaseVertex(GLenum mode
, GLuint start
, GLuint end
,
2016 GLsizei count
, GLenum type
,
2017 const GLvoid
*indices
, GLint basevertex
)
2019 vbo_exec_DrawRangeElementsBaseVertex(mode
, start
, end
, count
, type
,
2020 indices
, basevertex
);
2025 _mesa_MultiDrawElementsEXT(GLenum mode
, const GLsizei
*count
, GLenum type
,
2026 const GLvoid
** indices
, GLsizei primcount
)
2028 vbo_exec_MultiDrawElements(mode
, count
, type
, indices
, primcount
);
2033 _mesa_MultiDrawElementsBaseVertex(GLenum mode
,
2034 const GLsizei
*count
, GLenum type
,
2035 const GLvoid
**indices
, GLsizei primcount
,
2036 const GLint
*basevertex
)
2038 vbo_exec_MultiDrawElementsBaseVertex(mode
, count
, type
, indices
,
2039 primcount
, basevertex
);
2044 _mesa_DrawTransformFeedback(GLenum mode
, GLuint name
)
2046 vbo_exec_DrawTransformFeedback(mode
, name
);