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
64 * State which we may save/restore across meta ops.
65 * XXX this may be incomplete...
69 GLbitfield SavedState
; /**< bitmask of MESA_META_* flags */
71 /* Always saved/restored with meta. */
74 /** MESA_META_CLEAR (and others?) */
75 struct gl_query_object
*CurrentOcclusionObject
;
77 /** MESA_META_ALPHA_TEST */
78 GLboolean AlphaEnabled
;
82 /** MESA_META_BLEND */
83 GLbitfield BlendEnabled
;
84 GLboolean ColorLogicOpEnabled
;
86 /** MESA_META_COLOR_MASK */
87 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4];
89 /** MESA_META_DEPTH_TEST */
90 struct gl_depthbuffer_attrib Depth
;
95 /** MESA_META_PIXEL_STORE */
96 struct gl_pixelstore_attrib Pack
, Unpack
;
98 /** MESA_META_PIXEL_TRANSFER */
99 GLfloat RedBias
, RedScale
;
100 GLfloat GreenBias
, GreenScale
;
101 GLfloat BlueBias
, BlueScale
;
102 GLfloat AlphaBias
, AlphaScale
;
103 GLfloat DepthBias
, DepthScale
;
104 GLboolean MapColorFlag
;
106 /** MESA_META_RASTERIZATION */
107 GLenum FrontPolygonMode
, BackPolygonMode
;
108 GLboolean PolygonOffset
;
109 GLboolean PolygonSmooth
;
110 GLboolean PolygonStipple
;
111 GLboolean PolygonCull
;
113 /** MESA_META_SCISSOR */
114 struct gl_scissor_attrib Scissor
;
116 /** MESA_META_SHADER */
117 GLboolean VertexProgramEnabled
;
118 struct gl_vertex_program
*VertexProgram
;
119 GLboolean FragmentProgramEnabled
;
120 struct gl_fragment_program
*FragmentProgram
;
121 GLboolean ATIFragmentShaderEnabled
;
122 struct gl_shader_program
*Shader
[MESA_SHADER_STAGES
];
123 struct gl_shader_program
*ActiveShader
;
125 /** MESA_META_STENCIL_TEST */
126 struct gl_stencil_attrib Stencil
;
128 /** MESA_META_TRANSFORM */
130 GLfloat ModelviewMatrix
[16];
131 GLfloat ProjectionMatrix
[16];
132 GLfloat TextureMatrix
[16];
134 /** MESA_META_CLIP */
135 GLbitfield ClipPlanesEnabled
;
137 /** MESA_META_TEXTURE */
139 GLuint ClientActiveUnit
;
140 /** for unit[0] only */
141 struct gl_texture_object
*CurrentTexture
[NUM_TEXTURE_TARGETS
];
142 /** mask of TEXTURE_2D_BIT, etc */
143 GLbitfield TexEnabled
[MAX_TEXTURE_UNITS
];
144 GLbitfield TexGenEnabled
[MAX_TEXTURE_UNITS
];
145 GLuint EnvMode
; /* unit[0] only */
147 /** MESA_META_VERTEX */
148 struct gl_vertex_array_object
*VAO
;
149 struct gl_buffer_object
*ArrayBufferObj
;
151 /** MESA_META_VIEWPORT */
152 GLfloat ViewportX
, ViewportY
, ViewportW
, ViewportH
;
153 GLclampd DepthNear
, DepthFar
;
155 /** MESA_META_CLAMP_FRAGMENT_COLOR */
156 GLenum ClampFragmentColor
;
158 /** MESA_META_CLAMP_VERTEX_COLOR */
159 GLenum ClampVertexColor
;
161 /** MESA_META_CONDITIONAL_RENDER */
162 struct gl_query_object
*CondRenderQuery
;
163 GLenum CondRenderMode
;
165 /** MESA_META_SELECT_FEEDBACK */
167 struct gl_selection Select
;
168 struct gl_feedback Feedback
;
170 /** MESA_META_MULTISAMPLE */
171 struct gl_multisample_attrib Multisample
;
173 /** MESA_META_FRAMEBUFFER_SRGB */
174 GLboolean sRGBEnabled
;
176 /** Miscellaneous (always disabled) */
178 GLboolean RasterDiscard
;
179 GLboolean TransformFeedbackNeedsResume
;
183 * Temporary texture used for glBlitFramebuffer, glDrawPixels, etc.
184 * This is currently shared by all the meta ops. But we could create a
185 * separate one for each of glDrawPixel, glBlitFramebuffer, glCopyPixels, etc.
190 GLenum Target
; /**< GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE */
191 GLsizei MinSize
; /**< Min texture size to allocate */
192 GLsizei MaxSize
; /**< Max possible texture size */
193 GLboolean NPOT
; /**< Non-power of two size OK? */
194 GLsizei Width
, Height
; /**< Current texture size */
196 GLfloat Sright
, Ttop
; /**< right, top texcoords */
200 * State for GLSL texture sampler which is used to generate fragment
201 * shader in _mesa_meta_generate_mipmap().
206 const char *texcoords
;
211 * Table of all sampler types and shaders for accessing them.
213 struct blit_shader_table
{
214 struct blit_shader sampler_1d
;
215 struct blit_shader sampler_2d
;
216 struct blit_shader sampler_3d
;
217 struct blit_shader sampler_rect
;
218 struct blit_shader sampler_cubemap
;
219 struct blit_shader sampler_1d_array
;
220 struct blit_shader sampler_2d_array
;
221 struct blit_shader sampler_cubemap_array
;
225 * Indices in the blit_state->msaa_shaders[] array
227 * Note that setup_glsl_msaa_blit_shader() assumes that the _INT enums are one
228 * more than the non-_INT version and _UINT is one beyond that.
230 enum blit_msaa_shader
{
231 BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE
,
232 BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_INT
,
233 BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_UINT
,
234 BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY
,
235 BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY_INT
,
236 BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY_UINT
,
237 BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_RESOLVE
,
238 BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_COPY
,
239 BLIT_MSAA_SHADER_COUNT
,
243 * State for glBlitFramebufer()
250 struct blit_shader_table shaders
;
251 GLuint msaa_shaders
[BLIT_MSAA_SHADER_COUNT
];
252 struct temp_texture depthTex
;
257 * State for glClear()
267 GLuint IntegerShaderProg
;
268 GLint IntegerColorLocation
;
269 GLint IntegerLayerLocation
;
274 * State for glCopyPixels()
284 * State for glDrawPixels()
291 GLuint StencilFP
; /**< Fragment program for drawing stencil images */
292 GLuint DepthFP
; /**< Fragment program for drawing depth images */
297 * State for glBitmap()
303 struct temp_texture Tex
; /**< separate texture from other meta ops */
307 * State for _mesa_meta_generate_mipmap()
309 struct gen_mipmap_state
316 struct blit_shader_table shaders
;
320 * State for texture decompression
322 struct decompress_state
325 GLuint VBO
, FBO
, RBO
, Sampler
;
328 struct blit_shader_table shaders
;
332 * State for glDrawTex()
340 #define MAX_META_OPS_DEPTH 8
342 * All per-context meta state.
346 /** Stack of state saved during meta-ops */
347 struct save_state Save
[MAX_META_OPS_DEPTH
];
348 /** Save stack depth */
349 GLuint SaveStackDepth
;
351 struct temp_texture TempTex
;
353 struct blit_state Blit
; /**< For _mesa_meta_BlitFramebuffer() */
354 struct clear_state Clear
; /**< For _mesa_meta_Clear() */
355 struct copypix_state CopyPix
; /**< For _mesa_meta_CopyPixels() */
356 struct drawpix_state DrawPix
; /**< For _mesa_meta_DrawPixels() */
357 struct bitmap_state Bitmap
; /**< For _mesa_meta_Bitmap() */
358 struct gen_mipmap_state Mipmap
; /**< For _mesa_meta_GenerateMipmap() */
359 struct decompress_state Decompress
; /**< For texture decompression */
360 struct drawtex_state DrawTex
; /**< For _mesa_meta_DrawTex() */
364 GLfloat x
, y
, z
, tex
[4];
369 _mesa_meta_init(struct gl_context
*ctx
);
372 _mesa_meta_free(struct gl_context
*ctx
);
375 _mesa_meta_begin(struct gl_context
*ctx
, GLbitfield state
);
378 _mesa_meta_end(struct gl_context
*ctx
);
381 _mesa_meta_in_progress(struct gl_context
*ctx
);
384 _mesa_meta_BlitFramebuffer(struct gl_context
*ctx
,
385 GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
386 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
387 GLbitfield mask
, GLenum filter
);
390 _mesa_meta_Clear(struct gl_context
*ctx
, GLbitfield buffers
);
393 _mesa_meta_glsl_Clear(struct gl_context
*ctx
, GLbitfield buffers
);
396 _mesa_meta_CopyPixels(struct gl_context
*ctx
, GLint srcx
, GLint srcy
,
397 GLsizei width
, GLsizei height
,
398 GLint dstx
, GLint dsty
, GLenum type
);
401 _mesa_meta_DrawPixels(struct gl_context
*ctx
,
402 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
403 GLenum format
, GLenum type
,
404 const struct gl_pixelstore_attrib
*unpack
,
405 const GLvoid
*pixels
);
408 _mesa_meta_Bitmap(struct gl_context
*ctx
,
409 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
410 const struct gl_pixelstore_attrib
*unpack
,
411 const GLubyte
*bitmap
);
414 _mesa_meta_check_generate_mipmap_fallback(struct gl_context
*ctx
, GLenum target
,
415 struct gl_texture_object
*texObj
);
418 _mesa_meta_GenerateMipmap(struct gl_context
*ctx
, GLenum target
,
419 struct gl_texture_object
*texObj
);
422 _mesa_meta_CopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
423 struct gl_texture_image
*texImage
,
424 GLint xoffset
, GLint yoffset
, GLint slice
,
425 struct gl_renderbuffer
*rb
,
427 GLsizei width
, GLsizei height
);
430 _mesa_meta_GetTexImage(struct gl_context
*ctx
,
431 GLenum format
, GLenum type
, GLvoid
*pixels
,
432 struct gl_texture_image
*texImage
);
435 _mesa_meta_DrawTex(struct gl_context
*ctx
, GLfloat x
, GLfloat y
, GLfloat z
,
436 GLfloat width
, GLfloat height
);
438 /* meta-internal functions */
440 _mesa_meta_compile_shader_with_debug(struct gl_context
*ctx
, GLenum target
,
441 const GLcharARB
*source
);
445 _mesa_meta_link_program_with_debug(struct gl_context
*ctx
, GLuint program
);
448 _mesa_meta_alloc_texture(struct temp_texture
*tex
,
449 GLsizei width
, GLsizei height
, GLenum intFormat
);
452 _mesa_meta_setup_texture_coords(GLenum faceTarget
,
462 struct temp_texture
*
463 _mesa_meta_get_temp_texture(struct gl_context
*ctx
);
465 struct temp_texture
*
466 _mesa_meta_get_temp_depth_texture(struct gl_context
*ctx
);
469 _mesa_meta_setup_vertex_objects(GLuint
*VAO
, GLuint
*VBO
,
470 bool use_generic_attributes
,
471 unsigned vertex_size
, unsigned texcoord_size
,
472 unsigned color_size
);
475 _mesa_meta_setup_ff_tnl_for_blit(GLuint
*VAO
, GLuint
*VBO
,
476 unsigned texcoord_size
);
479 _mesa_meta_setup_drawpix_texture(struct gl_context
*ctx
,
480 struct temp_texture
*tex
,
482 GLsizei width
, GLsizei height
,
483 GLenum format
, GLenum type
,
484 const GLvoid
*pixels
);
487 _mesa_meta_setup_copypix_texture(struct gl_context
*ctx
,
488 struct temp_texture
*tex
,
489 GLint srcX
, GLint srcY
,
490 GLsizei width
, GLsizei height
,
495 _mesa_meta_setup_blit_shader(struct gl_context
*ctx
,
497 struct blit_shader_table
*table
);
500 _mesa_meta_glsl_blit_cleanup(struct blit_state
*blit
);
503 _mesa_meta_blit_shader_table_cleanup(struct blit_shader_table
*table
);