2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "extensions.h"
32 #include "mfeatures.h"
35 #include "texcompress.h"
36 #include "framebuffer.h"
38 /* This is a table driven implemetation of the glGet*v() functions.
39 * The basic idea is that most getters just look up an int somewhere
40 * in struct gl_context and then convert it to a bool or float according to
41 * which of glGetIntegerv() glGetBooleanv() etc is being called.
42 * Instead of generating code to do this, we can just record the enum
43 * value and the offset into struct gl_context in an array of structs. Then
44 * in glGet*(), we lookup the struct for the enum in question, and use
45 * the offset to get the int we need.
47 * Sometimes we need to look up a float, a boolean, a bit in a
48 * bitfield, a matrix or other types instead, so we need to track the
49 * type of the value in struct gl_context. And sometimes the value isn't in
50 * struct gl_context but in the drawbuffer, the array object, current texture
51 * unit, or maybe it's a computed value. So we need to also track
52 * where or how to find the value. Finally, we sometimes need to
53 * check that one of a number of extensions are enabled, the GL
54 * version or flush or call _mesa_update_state(). This is done by
55 * attaching optional extra information to the value description
56 * struct, it's sort of like an array of opcodes that describe extra
59 * Putting all this together we end up with struct value_desc below,
60 * and with a couple of macros to help, the table of struct value_desc
61 * is about as concise as the specification in the old python script.
64 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
65 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
66 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
67 (GLint) ((F) * 65536.0f) )
69 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
70 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
71 ((I) < SHRT_MIN) ? INT_MIN : \
72 (GLint) ((I) * 65536) )
74 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
75 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
77 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
78 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
79 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
80 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
82 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
83 #define ENUM_TO_FIXED(E) (E)
118 enum value_location {
134 EXTRA_NEW_FRAG_CLAMP,
135 EXTRA_VALID_DRAW_BUFFER,
136 EXTRA_VALID_TEXTURE_UNIT,
137 EXTRA_VALID_CLIP_DISTANCE,
142 #define NO_EXTRA NULL
147 GLubyte location; /**< enum value_location */
148 GLubyte type; /**< enum value_type */
155 GLfloat value_float_4[4];
156 GLmatrix *value_matrix;
158 GLint value_int_4[4];
162 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
166 GLboolean value_bool;
169 #define BUFFER_FIELD(field, type) \
170 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
171 #define CONTEXT_FIELD(field, type) \
172 LOC_CONTEXT, type, offsetof(struct gl_context, field)
173 #define ARRAY_FIELD(field, type) \
174 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
175 #undef CONST /* already defined through windows.h */
176 #define CONST(value) \
177 LOC_CONTEXT, TYPE_CONST, value
179 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
180 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
181 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
183 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
184 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
185 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
186 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
187 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
188 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
189 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
190 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
191 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
192 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
193 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
194 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
195 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
196 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
197 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
198 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
199 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
200 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
201 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
202 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
204 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
205 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
206 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
209 offsetof(struct gl_extensions, f)
211 #define EXTRA_EXT(e) \
212 static const int extra_##e[] = { \
216 #define EXTRA_EXT2(e1, e2) \
217 static const int extra_##e1##_##e2[] = { \
218 EXT(e1), EXT(e2), EXTRA_END \
221 /* The 'extra' mechanism is a way to specify extra checks (such as
222 * extensions or specific gl versions) or actions (flush current, new
223 * buffers) that we need to do before looking up an enum. We need to
224 * declare them all up front so we can refer to them in the value_desc
227 static const int extra_new_buffers[] = {
232 static const int extra_new_frag_clamp[] = {
233 EXTRA_NEW_FRAG_CLAMP,
237 static const int extra_valid_draw_buffer[] = {
238 EXTRA_VALID_DRAW_BUFFER,
242 static const int extra_valid_texture_unit[] = {
243 EXTRA_VALID_TEXTURE_UNIT,
247 static const int extra_valid_clip_distance[] = {
248 EXTRA_VALID_CLIP_DISTANCE,
252 static const int extra_flush_current_valid_texture_unit[] = {
254 EXTRA_VALID_TEXTURE_UNIT,
258 static const int extra_flush_current[] = {
263 static const int extra_EXT_secondary_color_flush_current[] = {
264 EXT(EXT_secondary_color),
269 static const int extra_EXT_fog_coord_flush_current[] = {
275 static const int extra_EXT_texture_integer[] = {
276 EXT(EXT_texture_integer),
280 static const int extra_GLSL_130[] = {
285 static const int extra_texture_buffer_object[] = {
287 EXT(ARB_texture_buffer_object),
291 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
292 EXT(ARB_uniform_buffer_object),
293 EXT(ARB_geometry_shader4),
298 EXTRA_EXT(ARB_ES2_compatibility);
299 EXTRA_EXT(ARB_texture_cube_map);
300 EXTRA_EXT(MESA_texture_array);
301 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
302 EXTRA_EXT(EXT_secondary_color);
303 EXTRA_EXT(EXT_fog_coord);
304 EXTRA_EXT(NV_fog_distance);
305 EXTRA_EXT(EXT_texture_filter_anisotropic);
306 EXTRA_EXT(NV_point_sprite);
307 EXTRA_EXT(NV_texture_rectangle);
308 EXTRA_EXT(EXT_stencil_two_side);
309 EXTRA_EXT(EXT_depth_bounds_test);
310 EXTRA_EXT(ARB_depth_clamp);
311 EXTRA_EXT(ATI_fragment_shader);
312 EXTRA_EXT(EXT_framebuffer_blit);
313 EXTRA_EXT(ARB_shader_objects);
314 EXTRA_EXT(EXT_provoking_vertex);
315 EXTRA_EXT(ARB_fragment_shader);
316 EXTRA_EXT(ARB_fragment_program);
317 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
318 EXTRA_EXT(EXT_framebuffer_object);
319 EXTRA_EXT(ARB_seamless_cube_map);
321 EXTRA_EXT(ARB_vertex_shader);
322 EXTRA_EXT(EXT_transform_feedback);
323 EXTRA_EXT(ARB_transform_feedback2);
324 EXTRA_EXT(ARB_transform_feedback3);
325 EXTRA_EXT(EXT_pixel_buffer_object);
326 EXTRA_EXT(ARB_vertex_program);
327 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
328 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
329 EXTRA_EXT(ARB_geometry_shader4);
330 EXTRA_EXT(ARB_color_buffer_float);
331 EXTRA_EXT(EXT_framebuffer_sRGB);
332 EXTRA_EXT(ARB_texture_buffer_object);
333 EXTRA_EXT(OES_EGL_image_external);
334 EXTRA_EXT(ARB_blend_func_extended);
335 EXTRA_EXT(ARB_uniform_buffer_object);
336 EXTRA_EXT(ARB_timer_query);
337 EXTRA_EXT(ARB_map_buffer_alignment);
338 EXTRA_EXT(ARB_texture_cube_map_array);
341 extra_NV_primitive_restart[] = {
342 EXT(NV_primitive_restart),
346 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
347 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
348 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
351 extra_ARB_vertex_program_api_es2[] = {
352 EXT(ARB_vertex_program),
357 /* The ReadBuffer get token is valid under either full GL or under
358 * GLES2 if the NV_read_buffer extension is available. */
360 extra_NV_read_buffer_api_gl[] = {
366 /* This is the big table describing all the enums we accept in
367 * glGet*v(). The table is partitioned into six parts: enums
368 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
369 * between OpenGL and GLES, enums exclusive to GLES, etc for the
370 * remaining combinations. To look up the enums valid in a given API
371 * we will use a hash table specific to that API. These tables are in
372 * turn generated at build time and included through get_hash.h.
373 * The different sections are guarded by #if FEATURE_GL etc to make
374 * sure we only compile in the enums we may need. */
376 #include "get_hash.h"
378 /* All we need now is a way to look up the value struct from the enum.
379 * The code generated by gcc for the old generated big switch
380 * statement is a big, balanced, open coded if/else tree, essentially
381 * an unrolled binary search. It would be natural to sort the new
382 * enum table and use bsearch(), but we will use a read-only hash
383 * table instead. bsearch() has a nice guaranteed worst case
384 * performance, but we're also guaranteed to hit that worst case
385 * (log2(n) iterations) for about half the enums. Instead, using an
386 * open addressing hash table, we can find the enum on the first try
387 * for 80% of the enums, 1 collision for 10% and never more than 5
388 * collisions for any enum (typical numbers). And the code is very
389 * simple, even though it feels a little magic. */
393 print_table_stats(int api)
395 int i, j, collisions[11], count, hash, mask;
396 const struct value_desc *d;
397 const char *api_names[] = {
398 [API_OPENGL_COMPAT] = "GL",
399 [API_OPENGL_CORE] = "GL_CORE",
400 [API_OPENGLES] = "GLES",
401 [API_OPENGLES2] = "GLES2",
403 const char *api_name;
405 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
407 mask = Elements(table(api)) - 1;
408 memset(collisions, 0, sizeof collisions);
410 for (i = 0; i < Elements(table(api)); i++) {
414 d = &values[table(api)[i]];
415 hash = (d->pname * prime_factor);
418 if (values[table(api)[hash & mask]].pname == d->pname)
430 printf("number of enums for %s: %d (total %ld)\n",
431 api_name, count, Elements(values));
432 for (i = 0; i < Elements(collisions) - 1; i++)
433 if (collisions[i] > 0)
434 printf(" %d enums with %d %scollisions\n",
435 collisions[i], i, i == 10 ? "or more " : "");
440 * Initialize the enum hash for a given API
442 * This is called from one_time_init() to insert the enum values that
443 * are valid for the API in question into the enum hash table.
445 * \param the current context, for determining the API in question
447 void _mesa_init_get_hash(struct gl_context *ctx)
455 * Handle irregular enums
457 * Some values don't conform to the "well-known type at context
458 * pointer + offset" pattern, so we have this function to catch all
459 * the corner cases. Typically, it's a computed value or a one-off
460 * pointer to a custom struct or something.
462 * In this case we can't return a pointer to the value, so we'll have
463 * to use the temporary variable 'v' declared back in the calling
464 * glGet*v() function to store the result.
466 * \param ctx the current context
467 * \param d the struct value_desc that describes the enum
468 * \param v pointer to the tmp declared in the calling glGet*v() function
471 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
473 struct gl_buffer_object **buffer_obj;
474 struct gl_client_array *array;
478 case GL_MAJOR_VERSION:
479 v->value_int = ctx->Version / 10;
481 case GL_MINOR_VERSION:
482 v->value_int = ctx->Version % 10;
488 case GL_TEXTURE_1D_ARRAY_EXT:
489 case GL_TEXTURE_2D_ARRAY_EXT:
490 case GL_TEXTURE_CUBE_MAP_ARB:
491 case GL_TEXTURE_RECTANGLE_NV:
492 case GL_TEXTURE_EXTERNAL_OES:
493 v->value_bool = _mesa_IsEnabled(d->pname);
496 case GL_LINE_STIPPLE_PATTERN:
497 /* This is the only GLushort, special case it here by promoting
498 * to an int rather than introducing a new type. */
499 v->value_int = ctx->Line.StipplePattern;
502 case GL_CURRENT_RASTER_TEXTURE_COORDS:
503 unit = ctx->Texture.CurrentUnit;
504 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
505 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
506 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
507 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
510 case GL_CURRENT_TEXTURE_COORDS:
511 unit = ctx->Texture.CurrentUnit;
512 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
513 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
514 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
515 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
518 case GL_COLOR_WRITEMASK:
519 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
520 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
521 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
522 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
526 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
530 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
533 case GL_MAP2_GRID_DOMAIN:
534 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
535 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
536 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
537 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
540 case GL_TEXTURE_STACK_DEPTH:
541 unit = ctx->Texture.CurrentUnit;
542 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
544 case GL_TEXTURE_MATRIX:
545 unit = ctx->Texture.CurrentUnit;
546 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
549 case GL_TEXTURE_COORD_ARRAY:
550 case GL_TEXTURE_COORD_ARRAY_SIZE:
551 case GL_TEXTURE_COORD_ARRAY_TYPE:
552 case GL_TEXTURE_COORD_ARRAY_STRIDE:
553 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
554 v->value_int = *(GLuint *) ((char *) array + d->offset);
557 case GL_ACTIVE_TEXTURE_ARB:
558 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
560 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
561 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
564 case GL_MODELVIEW_STACK_DEPTH:
565 case GL_PROJECTION_STACK_DEPTH:
566 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
569 case GL_MAX_TEXTURE_SIZE:
570 case GL_MAX_3D_TEXTURE_SIZE:
571 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
572 p = (GLuint *) ((char *) ctx + d->offset);
573 v->value_int = 1 << (*p - 1);
577 v->value_int_4[0] = ctx->Scissor.X;
578 v->value_int_4[1] = ctx->Scissor.Y;
579 v->value_int_4[2] = ctx->Scissor.Width;
580 v->value_int_4[3] = ctx->Scissor.Height;
585 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
588 if (!ctx->CompileFlag)
590 else if (ctx->ExecuteFlag)
591 v->value_enum = GL_COMPILE_AND_EXECUTE;
593 v->value_enum = GL_COMPILE;
597 v->value_int_4[0] = ctx->Viewport.X;
598 v->value_int_4[1] = ctx->Viewport.Y;
599 v->value_int_4[2] = ctx->Viewport.Width;
600 v->value_int_4[3] = ctx->Viewport.Height;
603 case GL_ACTIVE_STENCIL_FACE_EXT:
604 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
607 case GL_STENCIL_FAIL:
608 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
610 case GL_STENCIL_FUNC:
611 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
613 case GL_STENCIL_PASS_DEPTH_FAIL:
614 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
616 case GL_STENCIL_PASS_DEPTH_PASS:
617 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
620 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
622 case GL_STENCIL_VALUE_MASK:
623 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
625 case GL_STENCIL_WRITEMASK:
626 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
629 case GL_NUM_EXTENSIONS:
630 v->value_int = _mesa_get_extension_count(ctx);
633 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
634 v->value_int = _mesa_get_color_read_type(ctx);
636 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
637 v->value_int = _mesa_get_color_read_format(ctx);
640 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
641 v->value_int = ctx->CurrentStack->Depth + 1;
643 case GL_CURRENT_MATRIX_ARB:
644 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
645 v->value_matrix = ctx->CurrentStack->Top;
648 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
649 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
651 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
653 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
654 ASSERT(v->value_int_n.n <= 100);
657 case GL_MAX_VARYING_FLOATS_ARB:
658 v->value_int = ctx->Const.MaxVarying * 4;
661 /* Various object names */
663 case GL_TEXTURE_BINDING_1D:
664 case GL_TEXTURE_BINDING_2D:
665 case GL_TEXTURE_BINDING_3D:
666 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
667 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
668 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
669 case GL_TEXTURE_BINDING_RECTANGLE_NV:
670 case GL_TEXTURE_BINDING_EXTERNAL_OES:
671 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
672 unit = ctx->Texture.CurrentUnit;
674 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
677 /* GL_ARB_vertex_buffer_object */
678 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
679 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
680 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
681 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
682 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
683 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
684 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
685 buffer_obj = (struct gl_buffer_object **)
686 ((char *) ctx->Array.ArrayObj + d->offset);
687 v->value_int = (*buffer_obj)->Name;
689 case GL_ARRAY_BUFFER_BINDING_ARB:
690 v->value_int = ctx->Array.ArrayBufferObj->Name;
692 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
694 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
696 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
697 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
700 /* ARB_copy_buffer */
701 case GL_COPY_READ_BUFFER:
702 v->value_int = ctx->CopyReadBuffer->Name;
704 case GL_COPY_WRITE_BUFFER:
705 v->value_int = ctx->CopyWriteBuffer->Name;
708 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
709 v->value_int = ctx->Pack.BufferObj->Name;
711 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
712 v->value_int = ctx->Unpack.BufferObj->Name;
714 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
715 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
717 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
718 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
720 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
721 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
723 case GL_TRANSFORM_FEEDBACK_BINDING:
724 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
726 case GL_CURRENT_PROGRAM:
728 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
730 case GL_READ_FRAMEBUFFER_BINDING_EXT:
731 v->value_int = ctx->ReadBuffer->Name;
733 case GL_RENDERBUFFER_BINDING_EXT:
735 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
737 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
738 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
742 if(ctx->Color._ClampFragmentColor)
743 COPY_4FV(v->value_float_4, ctx->Fog.Color);
745 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
747 case GL_COLOR_CLEAR_VALUE:
748 if(ctx->Color._ClampFragmentColor) {
749 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
750 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
751 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
752 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
754 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
756 case GL_BLEND_COLOR_EXT:
757 if(ctx->Color._ClampFragmentColor)
758 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
760 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
762 case GL_ALPHA_TEST_REF:
763 if(ctx->Color._ClampFragmentColor)
764 v->value_float = ctx->Color.AlphaRef;
766 v->value_float = ctx->Color.AlphaRefUnclamped;
768 case GL_MAX_VERTEX_UNIFORM_VECTORS:
769 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
772 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
773 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
776 /* GL_ARB_texture_buffer_object */
777 case GL_TEXTURE_BUFFER_ARB:
778 v->value_int = ctx->Texture.BufferObject->Name;
780 case GL_TEXTURE_BINDING_BUFFER_ARB:
781 unit = ctx->Texture.CurrentUnit;
783 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
785 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
787 struct gl_buffer_object *buf =
788 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
789 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
790 v->value_int = buf ? buf->Name : 0;
793 case GL_TEXTURE_BUFFER_FORMAT_ARB:
794 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
795 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
798 /* GL_ARB_sampler_objects */
799 case GL_SAMPLER_BINDING:
801 struct gl_sampler_object *samp =
802 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
803 v->value_int = samp ? samp->Name : 0;
806 /* GL_ARB_uniform_buffer_object */
807 case GL_UNIFORM_BUFFER_BINDING:
808 v->value_int = ctx->UniformBuffer->Name;
810 /* GL_ARB_timer_query */
812 if (ctx->Driver.GetTimestamp) {
813 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
816 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
823 * Check extra constraints on a struct value_desc descriptor
825 * If a struct value_desc has a non-NULL extra pointer, it means that
826 * there are a number of extra constraints to check or actions to
827 * perform. The extras is just an integer array where each integer
828 * encode different constraints or actions.
830 * \param ctx current context
831 * \param func name of calling glGet*v() function for error reporting
832 * \param d the struct value_desc that has the extra constraints
834 * \return GL_FALSE if one of the constraints was not satisfied,
838 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
840 const GLuint version = ctx->Version;
846 for (e = d->extra; *e != EXTRA_END; e++)
848 case EXTRA_VERSION_30:
854 case EXTRA_VERSION_31:
860 case EXTRA_VERSION_32:
866 case EXTRA_NEW_FRAG_CLAMP:
867 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
868 _mesa_update_state(ctx);
871 if (ctx->API == API_OPENGLES2) {
877 if (_mesa_is_desktop_gl(ctx)) {
882 case EXTRA_NEW_BUFFERS:
883 if (ctx->NewState & _NEW_BUFFERS)
884 _mesa_update_state(ctx);
886 case EXTRA_FLUSH_CURRENT:
887 FLUSH_CURRENT(ctx, 0);
889 case EXTRA_VALID_DRAW_BUFFER:
890 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
891 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
892 func, d->pname - GL_DRAW_BUFFER0_ARB);
896 case EXTRA_VALID_TEXTURE_UNIT:
897 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
898 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
899 func, ctx->Texture.CurrentUnit);
903 case EXTRA_VALID_CLIP_DISTANCE:
904 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
905 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
906 func, d->pname - GL_CLIP_DISTANCE0);
911 if (ctx->Const.GLSLVersion >= 130) {
918 default: /* *e is a offset into the extension struct */
920 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
925 if (total > 0 && enabled == 0) {
926 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
927 _mesa_lookup_enum_by_nr(d->pname));
934 static const struct value_desc error_value =
935 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
938 * Find the struct value_desc corresponding to the enum 'pname'.
940 * We hash the enum value to get an index into the 'table' array,
941 * which holds the index in the 'values' array of struct value_desc.
942 * Once we've found the entry, we do the extra checks, if any, then
943 * look up the value and return a pointer to it.
945 * If the value has to be computed (for example, it's the result of a
946 * function call or we need to add 1 to it), we use the tmp 'v' to
949 * \param func name of glGet*v() func for error reporting
950 * \param pname the enum value we're looking up
951 * \param p is were we return the pointer to the value
952 * \param v a tmp union value variable in the calling glGet*v() function
954 * \return the struct value_desc corresponding to the enum or a struct
955 * value_desc of TYPE_INVALID if not found. This lets the calling
956 * glGet*v() function jump right into a switch statement and
957 * handle errors there instead of having to check for NULL.
959 static const struct value_desc *
960 find_value(const char *func, GLenum pname, void **p, union value *v)
962 GET_CURRENT_CONTEXT(ctx);
963 struct gl_texture_unit *unit;
965 const struct value_desc *d;
969 mask = Elements(table(api)) - 1;
970 hash = (pname * prime_factor);
972 int idx = table(api)[hash & mask];
974 /* If the enum isn't valid, the hash walk ends with index 0,
975 * pointing to the first entry of values[] which doesn't hold
977 if (unlikely(idx == 0)) {
978 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
979 _mesa_lookup_enum_by_nr(pname));
984 if (likely(d->pname == pname))
990 if (unlikely(d->extra && !check_extra(ctx, func, d)))
993 switch (d->location) {
995 *p = ((char *) ctx->DrawBuffer + d->offset);
998 *p = ((char *) ctx + d->offset);
1001 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1004 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1005 *p = ((char *) unit + d->offset);
1008 find_custom_value(ctx, d, v);
1016 /* silence warning */
1017 return &error_value;
1020 static const int transpose[] = {
1028 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1030 const struct value_desc *d;
1035 GET_CURRENT_CONTEXT(ctx);
1037 ASSERT_OUTSIDE_BEGIN_END(ctx);
1039 d = find_value("glGetBooleanv", pname, &p, &v);
1044 params[0] = INT_TO_BOOLEAN(d->offset);
1049 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1052 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1055 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1058 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1062 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1066 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1068 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1071 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1074 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1078 for (i = 0; i < v.value_int_n.n; i++)
1079 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1083 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1087 params[0] = ((GLboolean*) p)[0];
1091 m = *(GLmatrix **) p;
1092 for (i = 0; i < 16; i++)
1093 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1097 m = *(GLmatrix **) p;
1098 for (i = 0; i < 16; i++)
1099 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1110 shift = d->type - TYPE_BIT_0;
1111 params[0] = (*(GLbitfield *) p >> shift) & 1;
1117 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1119 const struct value_desc *d;
1124 GET_CURRENT_CONTEXT(ctx);
1126 ASSERT_OUTSIDE_BEGIN_END(ctx);
1128 d = find_value("glGetFloatv", pname, &p, &v);
1133 params[0] = (GLfloat) d->offset;
1138 params[3] = ((GLfloat *) p)[3];
1141 params[2] = ((GLfloat *) p)[2];
1144 params[1] = ((GLfloat *) p)[1];
1147 params[0] = ((GLfloat *) p)[0];
1151 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1155 params[3] = (GLfloat) (((GLint *) p)[3]);
1157 params[2] = (GLfloat) (((GLint *) p)[2]);
1160 params[1] = (GLfloat) (((GLint *) p)[1]);
1163 params[0] = (GLfloat) (((GLint *) p)[0]);
1167 for (i = 0; i < v.value_int_n.n; i++)
1168 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1172 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1176 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1180 m = *(GLmatrix **) p;
1181 for (i = 0; i < 16; i++)
1182 params[i] = m->m[i];
1186 m = *(GLmatrix **) p;
1187 for (i = 0; i < 16; i++)
1188 params[i] = m->m[transpose[i]];
1199 shift = d->type - TYPE_BIT_0;
1200 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1206 _mesa_GetIntegerv(GLenum pname, GLint *params)
1208 const struct value_desc *d;
1213 GET_CURRENT_CONTEXT(ctx);
1215 ASSERT_OUTSIDE_BEGIN_END(ctx);
1217 d = find_value("glGetIntegerv", pname, &p, &v);
1222 params[0] = d->offset;
1226 params[3] = IROUND(((GLfloat *) p)[3]);
1228 params[2] = IROUND(((GLfloat *) p)[2]);
1230 params[1] = IROUND(((GLfloat *) p)[1]);
1232 params[0] = IROUND(((GLfloat *) p)[0]);
1236 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1238 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1240 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1242 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1246 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1250 params[3] = ((GLint *) p)[3];
1252 params[2] = ((GLint *) p)[2];
1255 params[1] = ((GLint *) p)[1];
1258 params[0] = ((GLint *) p)[0];
1262 for (i = 0; i < v.value_int_n.n; i++)
1263 params[i] = v.value_int_n.ints[i];
1267 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1271 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1275 m = *(GLmatrix **) p;
1276 for (i = 0; i < 16; i++)
1277 params[i] = FLOAT_TO_INT(m->m[i]);
1281 m = *(GLmatrix **) p;
1282 for (i = 0; i < 16; i++)
1283 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1294 shift = d->type - TYPE_BIT_0;
1295 params[0] = (*(GLbitfield *) p >> shift) & 1;
1301 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1303 const struct value_desc *d;
1308 GET_CURRENT_CONTEXT(ctx);
1310 ASSERT_OUTSIDE_BEGIN_END(ctx);
1312 d = find_value("glGetInteger64v", pname, &p, &v);
1317 params[0] = d->offset;
1321 params[3] = IROUND64(((GLfloat *) p)[3]);
1323 params[2] = IROUND64(((GLfloat *) p)[2]);
1325 params[1] = IROUND64(((GLfloat *) p)[1]);
1327 params[0] = IROUND64(((GLfloat *) p)[0]);
1331 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1333 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1335 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1337 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1341 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1345 params[3] = ((GLint *) p)[3];
1347 params[2] = ((GLint *) p)[2];
1350 params[1] = ((GLint *) p)[1];
1353 params[0] = ((GLint *) p)[0];
1357 for (i = 0; i < v.value_int_n.n; i++)
1358 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1362 params[0] = ((GLint64 *) p)[0];
1366 params[0] = ((GLboolean*) p)[0];
1370 m = *(GLmatrix **) p;
1371 for (i = 0; i < 16; i++)
1372 params[i] = FLOAT_TO_INT64(m->m[i]);
1376 m = *(GLmatrix **) p;
1377 for (i = 0; i < 16; i++)
1378 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1389 shift = d->type - TYPE_BIT_0;
1390 params[0] = (*(GLbitfield *) p >> shift) & 1;
1396 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1398 const struct value_desc *d;
1403 GET_CURRENT_CONTEXT(ctx);
1405 ASSERT_OUTSIDE_BEGIN_END(ctx);
1407 d = find_value("glGetDoublev", pname, &p, &v);
1412 params[0] = d->offset;
1417 params[3] = ((GLfloat *) p)[3];
1420 params[2] = ((GLfloat *) p)[2];
1423 params[1] = ((GLfloat *) p)[1];
1426 params[0] = ((GLfloat *) p)[0];
1430 params[0] = ((GLdouble *) p)[0];
1434 params[3] = ((GLint *) p)[3];
1436 params[2] = ((GLint *) p)[2];
1439 params[1] = ((GLint *) p)[1];
1442 params[0] = ((GLint *) p)[0];
1446 for (i = 0; i < v.value_int_n.n; i++)
1447 params[i] = v.value_int_n.ints[i];
1451 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1455 params[0] = *(GLboolean*) p;
1459 m = *(GLmatrix **) p;
1460 for (i = 0; i < 16; i++)
1461 params[i] = m->m[i];
1465 m = *(GLmatrix **) p;
1466 for (i = 0; i < 16; i++)
1467 params[i] = m->m[transpose[i]];
1478 shift = d->type - TYPE_BIT_0;
1479 params[0] = (*(GLbitfield *) p >> shift) & 1;
1484 static enum value_type
1485 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1487 GET_CURRENT_CONTEXT(ctx);
1492 if (index >= ctx->Const.MaxDrawBuffers)
1494 if (!ctx->Extensions.EXT_draw_buffers2)
1496 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1501 case GL_BLEND_SRC_RGB:
1502 if (index >= ctx->Const.MaxDrawBuffers)
1504 if (!ctx->Extensions.ARB_draw_buffers_blend)
1506 v->value_int = ctx->Color.Blend[index].SrcRGB;
1508 case GL_BLEND_SRC_ALPHA:
1509 if (index >= ctx->Const.MaxDrawBuffers)
1511 if (!ctx->Extensions.ARB_draw_buffers_blend)
1513 v->value_int = ctx->Color.Blend[index].SrcA;
1517 case GL_BLEND_DST_RGB:
1518 if (index >= ctx->Const.MaxDrawBuffers)
1520 if (!ctx->Extensions.ARB_draw_buffers_blend)
1522 v->value_int = ctx->Color.Blend[index].DstRGB;
1524 case GL_BLEND_DST_ALPHA:
1525 if (index >= ctx->Const.MaxDrawBuffers)
1527 if (!ctx->Extensions.ARB_draw_buffers_blend)
1529 v->value_int = ctx->Color.Blend[index].DstA;
1531 case GL_BLEND_EQUATION_RGB:
1532 if (index >= ctx->Const.MaxDrawBuffers)
1534 if (!ctx->Extensions.ARB_draw_buffers_blend)
1536 v->value_int = ctx->Color.Blend[index].EquationRGB;
1538 case GL_BLEND_EQUATION_ALPHA:
1539 if (index >= ctx->Const.MaxDrawBuffers)
1541 if (!ctx->Extensions.ARB_draw_buffers_blend)
1543 v->value_int = ctx->Color.Blend[index].EquationA;
1546 case GL_COLOR_WRITEMASK:
1547 if (index >= ctx->Const.MaxDrawBuffers)
1549 if (!ctx->Extensions.EXT_draw_buffers2)
1551 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1552 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1553 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1554 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1557 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1558 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1560 if (!ctx->Extensions.EXT_transform_feedback)
1562 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1565 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1566 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1568 if (!ctx->Extensions.EXT_transform_feedback)
1570 v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index];
1573 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1574 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1576 if (!ctx->Extensions.EXT_transform_feedback)
1578 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1581 case GL_UNIFORM_BUFFER_BINDING:
1582 if (index >= ctx->Const.MaxUniformBufferBindings)
1584 if (!ctx->Extensions.ARB_uniform_buffer_object)
1586 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1589 case GL_UNIFORM_BUFFER_START:
1590 if (index >= ctx->Const.MaxUniformBufferBindings)
1592 if (!ctx->Extensions.ARB_uniform_buffer_object)
1594 v->value_int = ctx->UniformBufferBindings[index].Offset;
1597 case GL_UNIFORM_BUFFER_SIZE:
1598 if (index >= ctx->Const.MaxUniformBufferBindings)
1600 if (!ctx->Extensions.ARB_uniform_buffer_object)
1602 v->value_int = ctx->UniformBufferBindings[index].Size;
1607 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1608 _mesa_lookup_enum_by_nr(pname));
1609 return TYPE_INVALID;
1611 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1612 _mesa_lookup_enum_by_nr(pname));
1613 return TYPE_INVALID;
1617 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
1620 enum value_type type =
1621 find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
1625 params[0] = INT_TO_BOOLEAN(v.value_int);
1628 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1629 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1630 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1631 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1634 params[0] = INT64_TO_BOOLEAN(v.value_int);
1637 ; /* nothing - GL error was recorded */
1642 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
1645 enum value_type type =
1646 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1650 params[0] = v.value_int;
1653 params[0] = v.value_int_4[0];
1654 params[1] = v.value_int_4[1];
1655 params[2] = v.value_int_4[2];
1656 params[3] = v.value_int_4[3];
1659 params[0] = INT64_TO_INT(v.value_int);
1662 ; /* nothing - GL error was recorded */
1667 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
1670 enum value_type type =
1671 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1675 params[0] = v.value_int;
1678 params[0] = v.value_int_4[0];
1679 params[1] = v.value_int_4[1];
1680 params[2] = v.value_int_4[2];
1681 params[3] = v.value_int_4[3];
1684 params[0] = v.value_int;
1687 ; /* nothing - GL error was recorded */
1692 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1694 const struct value_desc *d;
1700 d = find_value("glGetDoublev", pname, &p, &v);
1705 params[0] = INT_TO_FIXED(d->offset);
1710 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1713 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1716 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1719 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1723 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1727 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1729 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1732 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1735 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1739 for (i = 0; i < v.value_int_n.n; i++)
1740 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1744 params[0] = ((GLint64 *) p)[0];
1748 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1752 m = *(GLmatrix **) p;
1753 for (i = 0; i < 16; i++)
1754 params[i] = FLOAT_TO_FIXED(m->m[i]);
1758 m = *(GLmatrix **) p;
1759 for (i = 0; i < 16; i++)
1760 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1771 shift = d->type - TYPE_BIT_0;
1772 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);