2 * Mesa 3-D graphics library
4 * Copyright (C) 2009 VMware, Inc. 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.
29 #include "main/mtypes.h"
32 * \name Flags for meta operations
35 * These flags are passed to _mesa_meta_begin().
37 #define MESA_META_ALL ~0x0
38 #define MESA_META_ALPHA_TEST 0x1
39 #define MESA_META_BLEND 0x2 /**< includes logicop */
40 #define MESA_META_COLOR_MASK 0x4
41 #define MESA_META_DEPTH_TEST 0x8
42 #define MESA_META_FOG 0x10
43 #define MESA_META_PIXEL_STORE 0x20
44 #define MESA_META_PIXEL_TRANSFER 0x40
45 #define MESA_META_RASTERIZATION 0x80
46 #define MESA_META_SCISSOR 0x100
47 #define MESA_META_SHADER 0x200
48 #define MESA_META_STENCIL_TEST 0x400
49 #define MESA_META_TRANSFORM 0x800 /**< modelview/projection matrix state */
50 #define MESA_META_TEXTURE 0x1000
51 #define MESA_META_VERTEX 0x2000
52 #define MESA_META_VIEWPORT 0x4000
53 #define MESA_META_CLAMP_FRAGMENT_COLOR 0x8000
54 #define MESA_META_CLAMP_VERTEX_COLOR 0x10000
55 #define MESA_META_CONDITIONAL_RENDER 0x20000
56 #define MESA_META_CLIP 0x40000
57 #define MESA_META_SELECT_FEEDBACK 0x80000
58 #define MESA_META_MULTISAMPLE 0x100000
59 #define MESA_META_FRAMEBUFFER_SRGB 0x200000
60 #define MESA_META_OCCLUSION_QUERY 0x400000
61 #define MESA_META_DRAW_BUFFERS 0x800000
65 * State which we may save/restore across meta ops.
66 * XXX this may be incomplete...
70 GLbitfield SavedState
; /**< bitmask of MESA_META_* flags */
72 /* Always saved/restored with meta. */
75 /** MESA_META_CLEAR (and others?) */
76 struct gl_query_object
*CurrentOcclusionObject
;
78 /** MESA_META_ALPHA_TEST */
79 GLboolean AlphaEnabled
;
83 /** MESA_META_BLEND */
84 GLbitfield BlendEnabled
;
85 GLboolean ColorLogicOpEnabled
;
87 /** MESA_META_COLOR_MASK */
88 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4];
90 /** MESA_META_DEPTH_TEST */
91 struct gl_depthbuffer_attrib Depth
;
96 /** MESA_META_PIXEL_STORE */
97 struct gl_pixelstore_attrib Pack
, Unpack
;
99 /** MESA_META_PIXEL_TRANSFER */
100 GLfloat RedBias
, RedScale
;
101 GLfloat GreenBias
, GreenScale
;
102 GLfloat BlueBias
, BlueScale
;
103 GLfloat AlphaBias
, AlphaScale
;
104 GLfloat DepthBias
, DepthScale
;
105 GLboolean MapColorFlag
;
107 /** MESA_META_RASTERIZATION */
108 GLenum FrontPolygonMode
, BackPolygonMode
;
109 GLboolean PolygonOffset
;
110 GLboolean PolygonSmooth
;
111 GLboolean PolygonStipple
;
112 GLboolean PolygonCull
;
114 /** MESA_META_SCISSOR */
115 struct gl_scissor_attrib Scissor
;
117 /** MESA_META_SHADER */
118 GLboolean VertexProgramEnabled
;
119 struct gl_vertex_program
*VertexProgram
;
120 GLboolean FragmentProgramEnabled
;
121 struct gl_fragment_program
*FragmentProgram
;
122 GLboolean ATIFragmentShaderEnabled
;
123 struct gl_shader_program
*Shader
[MESA_SHADER_STAGES
];
124 struct gl_shader_program
*ActiveShader
;
125 struct gl_pipeline_object
*Pipeline
;
127 /** MESA_META_STENCIL_TEST */
128 struct gl_stencil_attrib Stencil
;
130 /** MESA_META_TRANSFORM */
132 GLfloat ModelviewMatrix
[16];
133 GLfloat ProjectionMatrix
[16];
134 GLfloat TextureMatrix
[16];
136 /** MESA_META_CLIP */
137 GLbitfield ClipPlanesEnabled
;
139 /** MESA_META_TEXTURE */
141 GLuint ClientActiveUnit
;
142 /** for unit[0] only */
143 struct gl_texture_object
*CurrentTexture
[NUM_TEXTURE_TARGETS
];
144 /** mask of TEXTURE_2D_BIT, etc */
145 GLbitfield TexEnabled
[MAX_TEXTURE_UNITS
];
146 GLbitfield TexGenEnabled
[MAX_TEXTURE_UNITS
];
147 GLuint EnvMode
; /* unit[0] only */
149 /** MESA_META_VERTEX */
150 struct gl_vertex_array_object
*VAO
;
151 struct gl_buffer_object
*ArrayBufferObj
;
153 /** MESA_META_VIEWPORT */
154 GLfloat ViewportX
, ViewportY
, ViewportW
, ViewportH
;
155 GLclampd DepthNear
, DepthFar
;
157 /** MESA_META_CLAMP_FRAGMENT_COLOR */
158 GLenum ClampFragmentColor
;
160 /** MESA_META_CLAMP_VERTEX_COLOR */
161 GLenum ClampVertexColor
;
163 /** MESA_META_CONDITIONAL_RENDER */
164 struct gl_query_object
*CondRenderQuery
;
165 GLenum CondRenderMode
;
167 /** MESA_META_SELECT_FEEDBACK */
169 struct gl_selection Select
;
170 struct gl_feedback Feedback
;
172 /** MESA_META_MULTISAMPLE */
173 struct gl_multisample_attrib Multisample
;
175 /** MESA_META_FRAMEBUFFER_SRGB */
176 GLboolean sRGBEnabled
;
178 /** Miscellaneous (always disabled) */
180 GLboolean RasterDiscard
;
181 GLboolean TransformFeedbackNeedsResume
;
183 GLuint DrawBufferName
, ReadBufferName
, RenderbufferName
;
185 /** MESA_META_DRAW_BUFFERS */
186 GLenum ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
190 * Temporary texture used for glBlitFramebuffer, glDrawPixels, etc.
191 * This is currently shared by all the meta ops. But we could create a
192 * separate one for each of glDrawPixel, glBlitFramebuffer, glCopyPixels, etc.
197 GLenum Target
; /**< GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE */
198 GLsizei MinSize
; /**< Min texture size to allocate */
199 GLsizei MaxSize
; /**< Max possible texture size */
200 GLboolean NPOT
; /**< Non-power of two size OK? */
201 GLsizei Width
, Height
; /**< Current texture size */
203 GLfloat Sright
, Ttop
; /**< right, top texcoords */
207 * State for GLSL texture sampler which is used to generate fragment
208 * shader in _mesa_meta_generate_mipmap().
213 const char *texcoords
;
218 * Table of all sampler types and shaders for accessing them.
220 struct blit_shader_table
{
221 struct blit_shader sampler_1d
;
222 struct blit_shader sampler_2d
;
223 struct blit_shader sampler_3d
;
224 struct blit_shader sampler_rect
;
225 struct blit_shader sampler_cubemap
;
226 struct blit_shader sampler_1d_array
;
227 struct blit_shader sampler_2d_array
;
228 struct blit_shader sampler_cubemap_array
;
232 * Indices in the blit_state->msaa_shaders[] array
234 * Note that setup_glsl_msaa_blit_shader() assumes that the _INT enums are one
235 * more than the non-_INT version and _UINT is one beyond that.
237 enum blit_msaa_shader
{
238 BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE
,
239 BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_INT
,
240 BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_UINT
,
241 BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY
,
242 BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY_INT
,
243 BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY_UINT
,
244 BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_RESOLVE
,
245 BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_COPY
,
246 BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_RESOLVE
,
247 BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_RESOLVE_INT
,
248 BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_RESOLVE_UINT
,
249 BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_COPY
,
250 BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_COPY_INT
,
251 BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_COPY_UINT
,
252 BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_DEPTH_RESOLVE
,
253 BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_DEPTH_COPY
,
254 BLIT_MSAA_SHADER_COUNT
,
258 * State for glBlitFramebufer()
264 struct blit_shader_table shaders
;
265 GLuint msaa_shaders
[BLIT_MSAA_SHADER_COUNT
];
266 struct temp_texture depthTex
;
267 bool no_ctsi_fallback
;
272 * State for glClear()
282 GLuint IntegerShaderProg
;
283 GLint IntegerColorLocation
;
284 GLint IntegerLayerLocation
;
289 * State for glCopyPixels()
299 * State for glDrawPixels()
306 GLuint StencilFP
; /**< Fragment program for drawing stencil images */
307 GLuint DepthFP
; /**< Fragment program for drawing depth images */
312 * State for glBitmap()
318 struct temp_texture Tex
; /**< separate texture from other meta ops */
322 * State for _mesa_meta_generate_mipmap()
324 struct gen_mipmap_state
331 struct blit_shader_table shaders
;
335 * State for texture decompression
337 struct decompress_state
340 GLuint VBO
, FBO
, RBO
, Sampler
;
343 struct blit_shader_table shaders
;
347 * State for glDrawTex()
355 #define MAX_META_OPS_DEPTH 8
357 * All per-context meta state.
361 /** Stack of state saved during meta-ops */
362 struct save_state Save
[MAX_META_OPS_DEPTH
];
363 /** Save stack depth */
364 GLuint SaveStackDepth
;
366 struct temp_texture TempTex
;
368 struct blit_state Blit
; /**< For _mesa_meta_BlitFramebuffer() */
369 struct clear_state Clear
; /**< For _mesa_meta_Clear() */
370 struct copypix_state CopyPix
; /**< For _mesa_meta_CopyPixels() */
371 struct drawpix_state DrawPix
; /**< For _mesa_meta_DrawPixels() */
372 struct bitmap_state Bitmap
; /**< For _mesa_meta_Bitmap() */
373 struct gen_mipmap_state Mipmap
; /**< For _mesa_meta_GenerateMipmap() */
374 struct decompress_state Decompress
; /**< For texture decompression */
375 struct drawtex_state DrawTex
; /**< For _mesa_meta_DrawTex() */
379 GLfloat x
, y
, z
, tex
[4];
384 _mesa_meta_init(struct gl_context
*ctx
);
387 _mesa_meta_free(struct gl_context
*ctx
);
390 _mesa_meta_begin(struct gl_context
*ctx
, GLbitfield state
);
393 _mesa_meta_end(struct gl_context
*ctx
);
396 _mesa_meta_in_progress(struct gl_context
*ctx
);
399 _mesa_meta_BlitFramebuffer(struct gl_context
*ctx
,
400 GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
401 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
402 GLbitfield mask
, GLenum filter
);
405 _mesa_meta_Clear(struct gl_context
*ctx
, GLbitfield buffers
);
408 _mesa_meta_glsl_Clear(struct gl_context
*ctx
, GLbitfield buffers
);
411 _mesa_meta_CopyPixels(struct gl_context
*ctx
, GLint srcx
, GLint srcy
,
412 GLsizei width
, GLsizei height
,
413 GLint dstx
, GLint dsty
, GLenum type
);
416 _mesa_meta_DrawPixels(struct gl_context
*ctx
,
417 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
418 GLenum format
, GLenum type
,
419 const struct gl_pixelstore_attrib
*unpack
,
420 const GLvoid
*pixels
);
423 _mesa_meta_Bitmap(struct gl_context
*ctx
,
424 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
425 const struct gl_pixelstore_attrib
*unpack
,
426 const GLubyte
*bitmap
);
429 _mesa_meta_GenerateMipmap(struct gl_context
*ctx
, GLenum target
,
430 struct gl_texture_object
*texObj
);
433 _mesa_meta_CopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
434 struct gl_texture_image
*texImage
,
435 GLint xoffset
, GLint yoffset
, GLint slice
,
436 struct gl_renderbuffer
*rb
,
438 GLsizei width
, GLsizei height
);
441 _mesa_meta_GetTexImage(struct gl_context
*ctx
,
442 GLenum format
, GLenum type
, GLvoid
*pixels
,
443 struct gl_texture_image
*texImage
);
446 _mesa_meta_DrawTex(struct gl_context
*ctx
, GLfloat x
, GLfloat y
, GLfloat z
,
447 GLfloat width
, GLfloat height
);
449 /* meta-internal functions */
451 _mesa_meta_compile_shader_with_debug(struct gl_context
*ctx
, GLenum target
,
452 const GLcharARB
*source
);
456 _mesa_meta_link_program_with_debug(struct gl_context
*ctx
, GLuint program
);
459 _mesa_meta_compile_and_link_program(struct gl_context
*ctx
,
460 const char *vs_source
,
461 const char *fs_source
,
466 _mesa_meta_alloc_texture(struct temp_texture
*tex
,
467 GLsizei width
, GLsizei height
, GLenum intFormat
);
470 _mesa_meta_setup_texture_coords(GLenum faceTarget
,
480 struct temp_texture
*
481 _mesa_meta_get_temp_texture(struct gl_context
*ctx
);
483 struct temp_texture
*
484 _mesa_meta_get_temp_depth_texture(struct gl_context
*ctx
);
487 _mesa_meta_setup_vertex_objects(GLuint
*VAO
, GLuint
*VBO
,
488 bool use_generic_attributes
,
489 unsigned vertex_size
, unsigned texcoord_size
,
490 unsigned color_size
);
493 _mesa_meta_setup_ff_tnl_for_blit(GLuint
*VAO
, GLuint
*VBO
,
494 unsigned texcoord_size
);
497 _mesa_meta_setup_drawpix_texture(struct gl_context
*ctx
,
498 struct temp_texture
*tex
,
500 GLsizei width
, GLsizei height
,
501 GLenum format
, GLenum type
,
502 const GLvoid
*pixels
);
505 _mesa_meta_setup_copypix_texture(struct gl_context
*ctx
,
506 struct temp_texture
*tex
,
507 GLint srcX
, GLint srcY
,
508 GLsizei width
, GLsizei height
,
513 _mesa_meta_setup_blit_shader(struct gl_context
*ctx
,
515 struct blit_shader_table
*table
);
518 _mesa_meta_glsl_blit_cleanup(struct blit_state
*blit
);
521 _mesa_meta_blit_shader_table_cleanup(struct blit_shader_table
*table
);
524 _mesa_meta_glsl_generate_mipmap_cleanup(struct gen_mipmap_state
*mipmap
);
527 _mesa_meta_bind_fbo_image(GLenum attachment
,
528 struct gl_texture_image
*texImage
, GLuint layer
);