2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
28 * glClearColor, glClearIndex, glClear() functions.
46 _mesa_ClearIndex( GLfloat c
)
48 GET_CURRENT_CONTEXT(ctx
);
50 ctx
->Color
.ClearIndex
= (GLuint
) c
;
55 * Specify the clear values for the color buffers.
57 * \param red red color component.
58 * \param green green color component.
59 * \param blue blue color component.
60 * \param alpha alpha component.
65 _mesa_ClearColor( GLclampf red
, GLclampf green
, GLclampf blue
, GLclampf alpha
)
67 GET_CURRENT_CONTEXT(ctx
);
69 ctx
->Color
.ClearColor
.f
[0] = red
;
70 ctx
->Color
.ClearColor
.f
[1] = green
;
71 ctx
->Color
.ClearColor
.f
[2] = blue
;
72 ctx
->Color
.ClearColor
.f
[3] = alpha
;
77 * GL_EXT_texture_integer
80 _mesa_ClearColorIiEXT(GLint r
, GLint g
, GLint b
, GLint a
)
82 GET_CURRENT_CONTEXT(ctx
);
84 ctx
->Color
.ClearColor
.i
[0] = r
;
85 ctx
->Color
.ClearColor
.i
[1] = g
;
86 ctx
->Color
.ClearColor
.i
[2] = b
;
87 ctx
->Color
.ClearColor
.i
[3] = a
;
92 * GL_EXT_texture_integer
95 _mesa_ClearColorIuiEXT(GLuint r
, GLuint g
, GLuint b
, GLuint a
)
97 GET_CURRENT_CONTEXT(ctx
);
99 ctx
->Color
.ClearColor
.ui
[0] = r
;
100 ctx
->Color
.ClearColor
.ui
[1] = g
;
101 ctx
->Color
.ClearColor
.ui
[2] = b
;
102 ctx
->Color
.ClearColor
.ui
[3] = a
;
107 * Returns true if color writes are enabled for the given color attachment.
109 * Beyond checking ColorMask, this uses _mesa_format_has_color_component to
110 * ignore components that don't actually exist in the format (such as X in
114 color_buffer_writes_enabled(const struct gl_context
*ctx
, unsigned idx
)
116 struct gl_renderbuffer
*rb
= ctx
->DrawBuffer
->_ColorDrawBuffers
[idx
];
120 for (c
= 0; c
< 4; c
++) {
121 if (GET_COLORMASK_BIT(ctx
->Color
.ColorMask
, idx
, c
) &&
122 _mesa_format_has_color_component(rb
->Format
, c
)) {
135 * \param mask bit-mask indicating the buffers to be cleared.
137 * Flushes the vertices and verifies the parameter.
138 * If __struct gl_contextRec::NewState is set then calls _mesa_update_state()
139 * to update gl_frame_buffer::_Xmin, etc. If the rasterization mode is set to
140 * GL_RENDER then requests the driver to clear the buffers, via the
141 * dd_function_table::Clear callback.
143 static ALWAYS_INLINE
void
144 clear(struct gl_context
*ctx
, GLbitfield mask
, bool no_error
)
146 FLUSH_VERTICES(ctx
, 0);
147 FLUSH_CURRENT(ctx
, 0);
150 if (mask
& ~(GL_COLOR_BUFFER_BIT
|
151 GL_DEPTH_BUFFER_BIT
|
152 GL_STENCIL_BUFFER_BIT
|
153 GL_ACCUM_BUFFER_BIT
)) {
154 _mesa_error( ctx
, GL_INVALID_VALUE
, "glClear(0x%x)", mask
);
158 /* Accumulation buffers were removed in core contexts, and they never
159 * existed in OpenGL ES.
161 if ((mask
& GL_ACCUM_BUFFER_BIT
) != 0
162 && (ctx
->API
== API_OPENGL_CORE
|| _mesa_is_gles(ctx
))) {
163 _mesa_error( ctx
, GL_INVALID_VALUE
, "glClear(GL_ACCUM_BUFFER_BIT)");
169 _mesa_update_state( ctx
); /* update _Xmin, etc */
172 if (!no_error
&& ctx
->DrawBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
173 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
174 "glClear(incomplete framebuffer)");
178 if (ctx
->RasterDiscard
)
181 if (ctx
->RenderMode
== GL_RENDER
) {
182 GLbitfield bufferMask
;
184 /* don't clear depth buffer if depth writing disabled */
185 if (!ctx
->Depth
.Mask
)
186 mask
&= ~GL_DEPTH_BUFFER_BIT
;
188 /* Build the bitmask to send to device driver's Clear function.
189 * Note that the GL_COLOR_BUFFER_BIT flag will expand to 0, 1, 2 or 4
190 * of the BUFFER_BIT_FRONT/BACK_LEFT/RIGHT flags, or one of the
191 * BUFFER_BIT_COLORn flags.
194 if (mask
& GL_COLOR_BUFFER_BIT
) {
196 for (i
= 0; i
< ctx
->DrawBuffer
->_NumColorDrawBuffers
; i
++) {
197 gl_buffer_index buf
= ctx
->DrawBuffer
->_ColorDrawBufferIndexes
[i
];
199 if (buf
!= BUFFER_NONE
&& color_buffer_writes_enabled(ctx
, i
)) {
200 bufferMask
|= 1 << buf
;
205 if ((mask
& GL_DEPTH_BUFFER_BIT
)
206 && ctx
->DrawBuffer
->Visual
.haveDepthBuffer
) {
207 bufferMask
|= BUFFER_BIT_DEPTH
;
210 if ((mask
& GL_STENCIL_BUFFER_BIT
)
211 && ctx
->DrawBuffer
->Visual
.haveStencilBuffer
) {
212 bufferMask
|= BUFFER_BIT_STENCIL
;
215 if ((mask
& GL_ACCUM_BUFFER_BIT
)
216 && ctx
->DrawBuffer
->Visual
.haveAccumBuffer
) {
217 bufferMask
|= BUFFER_BIT_ACCUM
;
220 assert(ctx
->Driver
.Clear
);
221 ctx
->Driver
.Clear(ctx
, bufferMask
);
227 _mesa_Clear_no_error(GLbitfield mask
)
229 GET_CURRENT_CONTEXT(ctx
);
230 clear(ctx
, mask
, true);
235 _mesa_Clear(GLbitfield mask
)
237 GET_CURRENT_CONTEXT(ctx
);
239 if (MESA_VERBOSE
& VERBOSE_API
)
240 _mesa_debug(ctx
, "glClear 0x%x\n", mask
);
242 clear(ctx
, mask
, false);
246 /** Returned by make_color_buffer_mask() for errors */
247 #define INVALID_MASK ~0x0U
251 * Convert the glClearBuffer 'drawbuffer' parameter into a bitmask of
252 * BUFFER_BIT_x values.
253 * Return INVALID_MASK if the drawbuffer value is invalid.
256 make_color_buffer_mask(struct gl_context
*ctx
, GLint drawbuffer
)
258 const struct gl_renderbuffer_attachment
*att
= ctx
->DrawBuffer
->Attachment
;
259 GLbitfield mask
= 0x0;
261 /* From the GL 4.0 specification:
262 * If buffer is COLOR, a particular draw buffer DRAW_BUFFERi is
263 * specified by passing i as the parameter drawbuffer, and value
264 * points to a four-element vector specifying the R, G, B, and A
265 * color to clear that draw buffer to. If the draw buffer is one
266 * of FRONT, BACK, LEFT, RIGHT, or FRONT_AND_BACK, identifying
267 * multiple buffers, each selected buffer is cleared to the same
270 * Note that "drawbuffer" and "draw buffer" have different meaning.
271 * "drawbuffer" specifies DRAW_BUFFERi, while "draw buffer" is what's
272 * assigned to DRAW_BUFFERi. It could be COLOR_ATTACHMENT0, FRONT, BACK,
275 if (drawbuffer
< 0 || drawbuffer
>= (GLint
)ctx
->Const
.MaxDrawBuffers
) {
279 switch (ctx
->DrawBuffer
->ColorDrawBuffer
[drawbuffer
]) {
281 if (att
[BUFFER_FRONT_LEFT
].Renderbuffer
)
282 mask
|= BUFFER_BIT_FRONT_LEFT
;
283 if (att
[BUFFER_FRONT_RIGHT
].Renderbuffer
)
284 mask
|= BUFFER_BIT_FRONT_RIGHT
;
287 /* For GLES contexts with a single buffered configuration, we actually
288 * only have a front renderbuffer, so any clear calls to GL_BACK should
289 * affect that buffer. See draw_buffer_enum_to_bitmask for details.
291 if (_mesa_is_gles(ctx
))
292 if (!ctx
->DrawBuffer
->Visual
.doubleBufferMode
)
293 if (att
[BUFFER_FRONT_LEFT
].Renderbuffer
)
294 mask
|= BUFFER_BIT_FRONT_LEFT
;
295 if (att
[BUFFER_BACK_LEFT
].Renderbuffer
)
296 mask
|= BUFFER_BIT_BACK_LEFT
;
297 if (att
[BUFFER_BACK_RIGHT
].Renderbuffer
)
298 mask
|= BUFFER_BIT_BACK_RIGHT
;
301 if (att
[BUFFER_FRONT_LEFT
].Renderbuffer
)
302 mask
|= BUFFER_BIT_FRONT_LEFT
;
303 if (att
[BUFFER_BACK_LEFT
].Renderbuffer
)
304 mask
|= BUFFER_BIT_BACK_LEFT
;
307 if (att
[BUFFER_FRONT_RIGHT
].Renderbuffer
)
308 mask
|= BUFFER_BIT_FRONT_RIGHT
;
309 if (att
[BUFFER_BACK_RIGHT
].Renderbuffer
)
310 mask
|= BUFFER_BIT_BACK_RIGHT
;
312 case GL_FRONT_AND_BACK
:
313 if (att
[BUFFER_FRONT_LEFT
].Renderbuffer
)
314 mask
|= BUFFER_BIT_FRONT_LEFT
;
315 if (att
[BUFFER_BACK_LEFT
].Renderbuffer
)
316 mask
|= BUFFER_BIT_BACK_LEFT
;
317 if (att
[BUFFER_FRONT_RIGHT
].Renderbuffer
)
318 mask
|= BUFFER_BIT_FRONT_RIGHT
;
319 if (att
[BUFFER_BACK_RIGHT
].Renderbuffer
)
320 mask
|= BUFFER_BIT_BACK_RIGHT
;
324 gl_buffer_index buf
=
325 ctx
->DrawBuffer
->_ColorDrawBufferIndexes
[drawbuffer
];
327 if (buf
!= BUFFER_NONE
&& att
[buf
].Renderbuffer
) {
340 * Clear signed integer color buffer or stencil buffer (not depth).
342 static ALWAYS_INLINE
void
343 clear_bufferiv(struct gl_context
*ctx
, GLenum buffer
, GLint drawbuffer
,
344 const GLint
*value
, bool no_error
)
346 FLUSH_VERTICES(ctx
, 0);
347 FLUSH_CURRENT(ctx
, 0);
350 _mesa_update_state( ctx
);
355 /* Page 264 (page 280 of the PDF) of the OpenGL 3.0 spec says:
357 * "ClearBuffer generates an INVALID VALUE error if buffer is
358 * COLOR and drawbuffer is less than zero, or greater than the
359 * value of MAX DRAW BUFFERS minus one; or if buffer is DEPTH,
360 * STENCIL, or DEPTH STENCIL and drawbuffer is not zero."
362 if (!no_error
&& drawbuffer
!= 0) {
363 _mesa_error(ctx
, GL_INVALID_VALUE
, "glClearBufferiv(drawbuffer=%d)",
367 else if (ctx
->DrawBuffer
->Attachment
[BUFFER_STENCIL
].Renderbuffer
368 && !ctx
->RasterDiscard
) {
369 /* Save current stencil clear value, set to 'value', do the
370 * stencil clear and restore the clear value.
371 * XXX in the future we may have a new ctx->Driver.ClearBuffer()
374 const GLuint clearSave
= ctx
->Stencil
.Clear
;
375 ctx
->Stencil
.Clear
= *value
;
376 ctx
->Driver
.Clear(ctx
, BUFFER_BIT_STENCIL
);
377 ctx
->Stencil
.Clear
= clearSave
;
382 const GLbitfield mask
= make_color_buffer_mask(ctx
, drawbuffer
);
383 if (!no_error
&& mask
== INVALID_MASK
) {
384 _mesa_error(ctx
, GL_INVALID_VALUE
, "glClearBufferiv(drawbuffer=%d)",
388 else if (mask
&& !ctx
->RasterDiscard
) {
389 union gl_color_union clearSave
;
392 clearSave
= ctx
->Color
.ClearColor
;
394 COPY_4V(ctx
->Color
.ClearColor
.i
, value
);
395 /* clear buffer(s) */
396 ctx
->Driver
.Clear(ctx
, mask
);
398 ctx
->Color
.ClearColor
= clearSave
;
404 /* Page 498 of the PDF, section '17.4.3.1 Clearing Individual Buffers'
405 * of the OpenGL 4.5 spec states:
407 * "An INVALID_ENUM error is generated by ClearBufferiv and
408 * ClearNamedFramebufferiv if buffer is not COLOR or STENCIL."
410 _mesa_error(ctx
, GL_INVALID_ENUM
, "glClearBufferiv(buffer=%s)",
411 _mesa_enum_to_string(buffer
));
419 _mesa_ClearBufferiv_no_error(GLenum buffer
, GLint drawbuffer
, const GLint
*value
)
421 GET_CURRENT_CONTEXT(ctx
);
422 clear_bufferiv(ctx
, buffer
, drawbuffer
, value
, true);
427 _mesa_ClearBufferiv(GLenum buffer
, GLint drawbuffer
, const GLint
*value
)
429 GET_CURRENT_CONTEXT(ctx
);
430 clear_bufferiv(ctx
, buffer
, drawbuffer
, value
, false);
435 * The ClearBuffer framework is so complicated and so riddled with the
436 * assumption that the framebuffer is bound that, for now, we will just fake
437 * direct state access clearing for the user.
440 _mesa_ClearNamedFramebufferiv(GLuint framebuffer
, GLenum buffer
,
441 GLint drawbuffer
, const GLint
*value
)
445 _mesa_GetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING
, &oldfb
);
446 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, framebuffer
);
447 _mesa_ClearBufferiv(buffer
, drawbuffer
, value
);
448 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, (GLuint
) oldfb
);
454 * Clear unsigned integer color buffer (not depth, not stencil).
456 static ALWAYS_INLINE
void
457 clear_bufferuiv(struct gl_context
*ctx
, GLenum buffer
, GLint drawbuffer
,
458 const GLuint
*value
, bool no_error
)
460 FLUSH_VERTICES(ctx
, 0);
461 FLUSH_CURRENT(ctx
, 0);
464 _mesa_update_state( ctx
);
470 const GLbitfield mask
= make_color_buffer_mask(ctx
, drawbuffer
);
471 if (!no_error
&& mask
== INVALID_MASK
) {
472 _mesa_error(ctx
, GL_INVALID_VALUE
, "glClearBufferuiv(drawbuffer=%d)",
476 else if (mask
&& !ctx
->RasterDiscard
) {
477 union gl_color_union clearSave
;
480 clearSave
= ctx
->Color
.ClearColor
;
482 COPY_4V(ctx
->Color
.ClearColor
.ui
, value
);
483 /* clear buffer(s) */
484 ctx
->Driver
.Clear(ctx
, mask
);
486 ctx
->Color
.ClearColor
= clearSave
;
492 /* Page 498 of the PDF, section '17.4.3.1 Clearing Individual Buffers'
493 * of the OpenGL 4.5 spec states:
495 * "An INVALID_ENUM error is generated by ClearBufferuiv and
496 * ClearNamedFramebufferuiv if buffer is not COLOR."
498 _mesa_error(ctx
, GL_INVALID_ENUM
, "glClearBufferuiv(buffer=%s)",
499 _mesa_enum_to_string(buffer
));
507 _mesa_ClearBufferuiv_no_error(GLenum buffer
, GLint drawbuffer
,
510 GET_CURRENT_CONTEXT(ctx
);
511 clear_bufferuiv(ctx
, buffer
, drawbuffer
, value
, true);
516 _mesa_ClearBufferuiv(GLenum buffer
, GLint drawbuffer
, const GLuint
*value
)
518 GET_CURRENT_CONTEXT(ctx
);
519 clear_bufferuiv(ctx
, buffer
, drawbuffer
, value
, false);
524 * The ClearBuffer framework is so complicated and so riddled with the
525 * assumption that the framebuffer is bound that, for now, we will just fake
526 * direct state access clearing for the user.
529 _mesa_ClearNamedFramebufferuiv(GLuint framebuffer
, GLenum buffer
,
530 GLint drawbuffer
, const GLuint
*value
)
534 _mesa_GetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING
, &oldfb
);
535 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, framebuffer
);
536 _mesa_ClearBufferuiv(buffer
, drawbuffer
, value
);
537 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, (GLuint
) oldfb
);
543 * Clear fixed-pt or float color buffer or depth buffer (not stencil).
545 static ALWAYS_INLINE
void
546 clear_bufferfv(struct gl_context
*ctx
, GLenum buffer
, GLint drawbuffer
,
547 const GLfloat
*value
, bool no_error
)
549 FLUSH_VERTICES(ctx
, 0);
550 FLUSH_CURRENT(ctx
, 0);
553 _mesa_update_state( ctx
);
558 /* Page 264 (page 280 of the PDF) of the OpenGL 3.0 spec says:
560 * "ClearBuffer generates an INVALID VALUE error if buffer is
561 * COLOR and drawbuffer is less than zero, or greater than the
562 * value of MAX DRAW BUFFERS minus one; or if buffer is DEPTH,
563 * STENCIL, or DEPTH STENCIL and drawbuffer is not zero."
565 if (!no_error
&& drawbuffer
!= 0) {
566 _mesa_error(ctx
, GL_INVALID_VALUE
, "glClearBufferfv(drawbuffer=%d)",
570 else if (ctx
->DrawBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
571 && !ctx
->RasterDiscard
) {
572 /* Save current depth clear value, set to 'value', do the
573 * depth clear and restore the clear value.
574 * XXX in the future we may have a new ctx->Driver.ClearBuffer()
577 const GLclampd clearSave
= ctx
->Depth
.Clear
;
578 ctx
->Depth
.Clear
= *value
;
579 ctx
->Driver
.Clear(ctx
, BUFFER_BIT_DEPTH
);
580 ctx
->Depth
.Clear
= clearSave
;
582 /* clear depth buffer to value */
586 const GLbitfield mask
= make_color_buffer_mask(ctx
, drawbuffer
);
587 if (!no_error
&& mask
== INVALID_MASK
) {
588 _mesa_error(ctx
, GL_INVALID_VALUE
, "glClearBufferfv(drawbuffer=%d)",
592 else if (mask
&& !ctx
->RasterDiscard
) {
593 union gl_color_union clearSave
;
596 clearSave
= ctx
->Color
.ClearColor
;
598 COPY_4V(ctx
->Color
.ClearColor
.f
, value
);
599 /* clear buffer(s) */
600 ctx
->Driver
.Clear(ctx
, mask
);
602 ctx
->Color
.ClearColor
= clearSave
;
608 /* Page 498 of the PDF, section '17.4.3.1 Clearing Individual Buffers'
609 * of the OpenGL 4.5 spec states:
611 * "An INVALID_ENUM error is generated by ClearBufferfv and
612 * ClearNamedFramebufferfv if buffer is not COLOR or DEPTH."
614 _mesa_error(ctx
, GL_INVALID_ENUM
, "glClearBufferfv(buffer=%s)",
615 _mesa_enum_to_string(buffer
));
623 _mesa_ClearBufferfv_no_error(GLenum buffer
, GLint drawbuffer
,
624 const GLfloat
*value
)
626 GET_CURRENT_CONTEXT(ctx
);
627 clear_bufferfv(ctx
, buffer
, drawbuffer
, value
, true);
632 _mesa_ClearBufferfv(GLenum buffer
, GLint drawbuffer
, const GLfloat
*value
)
634 GET_CURRENT_CONTEXT(ctx
);
635 clear_bufferfv(ctx
, buffer
, drawbuffer
, value
, false);
640 * The ClearBuffer framework is so complicated and so riddled with the
641 * assumption that the framebuffer is bound that, for now, we will just fake
642 * direct state access clearing for the user.
645 _mesa_ClearNamedFramebufferfv(GLuint framebuffer
, GLenum buffer
,
646 GLint drawbuffer
, const GLfloat
*value
)
650 _mesa_GetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING
, &oldfb
);
651 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, framebuffer
);
652 _mesa_ClearBufferfv(buffer
, drawbuffer
, value
);
653 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, (GLuint
) oldfb
);
659 * Clear depth/stencil buffer only.
661 static ALWAYS_INLINE
void
662 clear_bufferfi(struct gl_context
*ctx
, GLenum buffer
, GLint drawbuffer
,
663 GLfloat depth
, GLint stencil
, bool no_error
)
667 FLUSH_VERTICES(ctx
, 0);
668 FLUSH_CURRENT(ctx
, 0);
671 if (buffer
!= GL_DEPTH_STENCIL
) {
672 _mesa_error(ctx
, GL_INVALID_ENUM
, "glClearBufferfi(buffer=%s)",
673 _mesa_enum_to_string(buffer
));
677 /* Page 264 (page 280 of the PDF) of the OpenGL 3.0 spec says:
679 * "ClearBuffer generates an INVALID VALUE error if buffer is
680 * COLOR and drawbuffer is less than zero, or greater than the
681 * value of MAX DRAW BUFFERS minus one; or if buffer is DEPTH,
682 * STENCIL, or DEPTH STENCIL and drawbuffer is not zero."
684 if (drawbuffer
!= 0) {
685 _mesa_error(ctx
, GL_INVALID_VALUE
, "glClearBufferfi(drawbuffer=%d)",
691 if (ctx
->RasterDiscard
)
695 _mesa_update_state( ctx
);
698 if (ctx
->DrawBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
)
699 mask
|= BUFFER_BIT_DEPTH
;
700 if (ctx
->DrawBuffer
->Attachment
[BUFFER_STENCIL
].Renderbuffer
)
701 mask
|= BUFFER_BIT_STENCIL
;
704 /* save current clear values */
705 const GLclampd clearDepthSave
= ctx
->Depth
.Clear
;
706 const GLuint clearStencilSave
= ctx
->Stencil
.Clear
;
708 /* set new clear values */
709 ctx
->Depth
.Clear
= depth
;
710 ctx
->Stencil
.Clear
= stencil
;
713 ctx
->Driver
.Clear(ctx
, mask
);
716 ctx
->Depth
.Clear
= clearDepthSave
;
717 ctx
->Stencil
.Clear
= clearStencilSave
;
723 _mesa_ClearBufferfi_no_error(GLenum buffer
, GLint drawbuffer
,
724 GLfloat depth
, GLint stencil
)
726 GET_CURRENT_CONTEXT(ctx
);
727 clear_bufferfi(ctx
, buffer
, drawbuffer
, depth
, stencil
, true);
732 _mesa_ClearBufferfi(GLenum buffer
, GLint drawbuffer
,
733 GLfloat depth
, GLint stencil
)
735 GET_CURRENT_CONTEXT(ctx
);
736 clear_bufferfi(ctx
, buffer
, drawbuffer
, depth
, stencil
, false);
741 * The ClearBuffer framework is so complicated and so riddled with the
742 * assumption that the framebuffer is bound that, for now, we will just fake
743 * direct state access clearing for the user.
746 _mesa_ClearNamedFramebufferfi(GLuint framebuffer
, GLenum buffer
,
747 GLint drawbuffer
, GLfloat depth
, GLint stencil
)
751 _mesa_GetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING
, &oldfb
);
752 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, framebuffer
);
753 _mesa_ClearBufferfi(buffer
, drawbuffer
, depth
, stencil
);
754 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, (GLuint
) oldfb
);