Lines Matching refs:ctx
56 GET_CURRENT_CONTEXT(ctx);
57 ASSERT_OUTSIDE_BEGIN_END(ctx);
59 if (ctx->RenderMode==GL_FEEDBACK) {
60 _mesa_error( ctx, GL_INVALID_OPERATION, "glFeedbackBuffer" );
64 _mesa_error( ctx, GL_INVALID_VALUE, "glFeedbackBuffer(size<0)" );
68 _mesa_error( ctx, GL_INVALID_VALUE, "glFeedbackBuffer(buffer==NULL)" );
69 ctx->Feedback.BufferSize = 0;
75 ctx->Feedback._Mask = 0;
78 ctx->Feedback._Mask = FB_3D;
81 ctx->Feedback._Mask = (FB_3D | FB_COLOR);
84 ctx->Feedback._Mask = (FB_3D | FB_COLOR | FB_TEXTURE);
87 ctx->Feedback._Mask = (FB_3D | FB_4D | FB_COLOR | FB_TEXTURE);
90 _mesa_error( ctx, GL_INVALID_ENUM, "glFeedbackBuffer" );
94 FLUSH_VERTICES(ctx, _NEW_RENDERMODE); /* Always flush */
95 ctx->Feedback.Type = type;
96 ctx->Feedback.BufferSize = size;
97 ctx->Feedback.Buffer = buffer;
98 ctx->Feedback.Count = 0; /* Becaues of this. */
105 GET_CURRENT_CONTEXT(ctx);
106 ASSERT_OUTSIDE_BEGIN_END(ctx);
108 if (ctx->RenderMode==GL_FEEDBACK) {
109 FLUSH_VERTICES(ctx, 0);
110 _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_PASS_THROUGH_TOKEN );
111 _mesa_feedback_token( ctx, token );
120 _mesa_feedback_vertex(struct gl_context *ctx,
125 _mesa_feedback_token( ctx, win[0] );
126 _mesa_feedback_token( ctx, win[1] );
127 if (ctx->Feedback._Mask & FB_3D) {
128 _mesa_feedback_token( ctx, win[2] );
130 if (ctx->Feedback._Mask & FB_4D) {
131 _mesa_feedback_token( ctx, win[3] );
133 if (ctx->Feedback._Mask & FB_COLOR) {
134 _mesa_feedback_token( ctx, color[0] );
135 _mesa_feedback_token( ctx, color[1] );
136 _mesa_feedback_token( ctx, color[2] );
137 _mesa_feedback_token( ctx, color[3] );
139 if (ctx->Feedback._Mask & FB_TEXTURE) {
140 _mesa_feedback_token( ctx, texcoord[0] );
141 _mesa_feedback_token( ctx, texcoord[1] );
142 _mesa_feedback_token( ctx, texcoord[2] );
143 _mesa_feedback_token( ctx, texcoord[3] );
168 GET_CURRENT_CONTEXT(ctx);
169 ASSERT_OUTSIDE_BEGIN_END(ctx);
172 _mesa_error(ctx, GL_INVALID_VALUE, "glSelectBuffer(size)");
176 if (ctx->RenderMode==GL_SELECT) {
177 _mesa_error( ctx, GL_INVALID_OPERATION, "glSelectBuffer" );
181 FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
182 ctx->Select.Buffer = buffer;
183 ctx->Select.BufferSize = size;
184 ctx->Select.BufferCount = 0;
185 ctx->Select.HitFlag = GL_FALSE;
186 ctx->Select.HitMinZ = 1.0;
187 ctx->Select.HitMaxZ = 0.0;
194 * \param ctx GL context.
201 write_record(struct gl_context *ctx, GLuint value)
203 if (ctx->Select.BufferCount < ctx->Select.BufferSize) {
204 ctx->Select.Buffer[ctx->Select.BufferCount] = value;
206 ctx->Select.BufferCount++;
213 * \param ctx GL context.
220 _mesa_update_hitflag(struct gl_context *ctx, GLfloat z)
222 ctx->Select.HitFlag = GL_TRUE;
223 if (z < ctx->Select.HitMinZ) {
224 ctx->Select.HitMinZ = z;
226 if (z > ctx->Select.HitMaxZ) {
227 ctx->Select.HitMaxZ = z;
235 * \param ctx GL context.
244 write_hit_record(struct gl_context *ctx)
252 assert( ctx != NULL ); /* this line magically fixes a SunOS 5.x/gcc bug */
253 zmin = (GLuint) ((GLfloat) zscale * ctx->Select.HitMinZ);
254 zmax = (GLuint) ((GLfloat) zscale * ctx->Select.HitMaxZ);
256 write_record( ctx, ctx->Select.NameStackDepth );
257 write_record( ctx, zmin );
258 write_record( ctx, zmax );
259 for (i = 0; i < ctx->Select.NameStackDepth; i++) {
260 write_record( ctx, ctx->Select.NameStack[i] );
263 ctx->Select.Hits++;
264 ctx->Select.HitFlag = GL_FALSE;
265 ctx->Select.HitMinZ = 1.0;
266 ctx->Select.HitMaxZ = -1.0;
280 GET_CURRENT_CONTEXT(ctx);
281 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
284 if (ctx->RenderMode == GL_SELECT) {
285 if (ctx->Select.HitFlag) {
286 write_hit_record( ctx );
289 ctx->Select.NameStackDepth = 0;
290 ctx->Select.HitFlag = GL_FALSE;
291 ctx->Select.HitMinZ = 1.0;
292 ctx->Select.HitMaxZ = 0.0;
293 ctx->NewState |= _NEW_RENDERMODE;
311 GET_CURRENT_CONTEXT(ctx);
312 ASSERT_OUTSIDE_BEGIN_END(ctx);
314 if (ctx->RenderMode != GL_SELECT) {
317 if (ctx->Select.NameStackDepth == 0) {
318 _mesa_error( ctx, GL_INVALID_OPERATION, "glLoadName" );
322 FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
324 if (ctx->Select.HitFlag) {
325 write_hit_record( ctx );
327 if (ctx->Select.NameStackDepth < MAX_NAME_STACK_DEPTH) {
328 ctx->Select.NameStack[ctx->Select.NameStackDepth-1] = name;
331 ctx->Select.NameStack[MAX_NAME_STACK_DEPTH-1] = name;
350 GET_CURRENT_CONTEXT(ctx);
351 ASSERT_OUTSIDE_BEGIN_END(ctx);
353 if (ctx->RenderMode != GL_SELECT) {
357 FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
358 if (ctx->Select.HitFlag) {
359 write_hit_record( ctx );
361 if (ctx->Select.NameStackDepth >= MAX_NAME_STACK_DEPTH) {
362 _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushName" );
365 ctx->Select.NameStack[ctx->Select.NameStackDepth++] = name;
381 GET_CURRENT_CONTEXT(ctx);
382 ASSERT_OUTSIDE_BEGIN_END(ctx);
384 if (ctx->RenderMode != GL_SELECT) {
388 FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
389 if (ctx->Select.HitFlag) {
390 write_hit_record( ctx );
392 if (ctx->Select.NameStackDepth == 0) {
393 _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopName" );
396 ctx->Select.NameStackDepth--;
424 GET_CURRENT_CONTEXT(ctx);
426 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
429 _mesa_debug(ctx, "glRenderMode %s\n", _mesa_lookup_enum_by_nr(mode));
431 FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
433 switch (ctx->RenderMode) {
438 if (ctx->Select.HitFlag) {
439 write_hit_record( ctx );
441 if (ctx->Select.BufferCount > ctx->Select.BufferSize) {
444 _mesa_warning(ctx, "Feedback buffer overflow");
449 result = ctx->Select.Hits;
451 ctx->Select.BufferCount = 0;
452 ctx->Select.Hits = 0;
453 ctx->Select.NameStackDepth = 0;
457 if (ctx->Feedback.Count > ctx->Feedback.BufferSize) {
462 result = ctx->Feedback.Count;
464 ctx->Feedback.Count = 0;
468 _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" );
476 if (ctx->Select.BufferSize==0) {
478 _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" );
483 if (ctx->Feedback.BufferSize==0) {
485 _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" );
490 _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" );
494 ctx->RenderMode = mode;
495 if (ctx->Driver.RenderMode)
496 ctx->Driver.RenderMode( ctx, mode );
528 void _mesa_init_feedback( struct gl_context * ctx )
531 ctx->Feedback.Type = GL_2D; /* TODO: verify */
532 ctx->Feedback.Buffer = NULL;
533 ctx->Feedback.BufferSize = 0;
534 ctx->Feedback.Count = 0;
537 ctx->Select.Buffer = NULL;
538 ctx->Select.BufferSize = 0;
539 ctx->Select.BufferCount = 0;
540 ctx->Select.Hits = 0;
541 ctx->Select.NameStackDepth = 0;
544 ctx->RenderMode = GL_RENDER;