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      1 
      2 #ifndef COMMON_CONTEXT_H
      3 #define COMMON_CONTEXT_H
      4 
      5 #include "math/m_vector.h"
      6 #include "tnl/t_context.h"
      7 #include "main/colormac.h"
      8 
      9 #include "radeon_screen.h"
     10 #include "radeon_debug.h"
     11 #include "radeon_drm.h"
     12 #include "dri_util.h"
     13 #include "tnl/t_vertex.h"
     14 #include "swrast/s_context.h"
     15 
     16 struct radeon_context;
     17 
     18 #include "radeon_bo_gem.h"
     19 #include "radeon_cs_gem.h"
     20 
     21 /* This union is used to avoid warnings/miscompilation
     22    with float to uint32_t casts due to strict-aliasing */
     23 typedef union { GLfloat f; uint32_t ui32; } float_ui32_type;
     24 
     25 struct radeon_context;
     26 typedef struct radeon_context radeonContextRec;
     27 typedef struct radeon_context *radeonContextPtr;
     28 
     29 
     30 #define TEX_0   0x1
     31 #define TEX_1   0x2
     32 #define TEX_2   0x4
     33 #define TEX_3	0x8
     34 #define TEX_4	0x10
     35 #define TEX_5	0x20
     36 
     37 /* Rasterizing fallbacks */
     38 /* See correponding strings in r200_swtcl.c */
     39 #define RADEON_FALLBACK_TEXTURE		0x0001
     40 #define RADEON_FALLBACK_DRAW_BUFFER	0x0002
     41 #define RADEON_FALLBACK_STENCIL		0x0004
     42 #define RADEON_FALLBACK_RENDER_MODE	0x0008
     43 #define RADEON_FALLBACK_BLEND_EQ	0x0010
     44 #define RADEON_FALLBACK_BLEND_FUNC	0x0020
     45 #define RADEON_FALLBACK_DISABLE 	0x0040
     46 #define RADEON_FALLBACK_BORDER_MODE	0x0080
     47 #define RADEON_FALLBACK_DEPTH_BUFFER	0x0100
     48 #define RADEON_FALLBACK_STENCIL_BUFFER  0x0200
     49 
     50 #define R200_FALLBACK_TEXTURE           0x01
     51 #define R200_FALLBACK_DRAW_BUFFER       0x02
     52 #define R200_FALLBACK_STENCIL           0x04
     53 #define R200_FALLBACK_RENDER_MODE       0x08
     54 #define R200_FALLBACK_DISABLE           0x10
     55 #define R200_FALLBACK_BORDER_MODE       0x20
     56 
     57 #define RADEON_TCL_FALLBACK_RASTER            0x1 /* rasterization */
     58 #define RADEON_TCL_FALLBACK_UNFILLED          0x2 /* unfilled tris */
     59 #define RADEON_TCL_FALLBACK_LIGHT_TWOSIDE     0x4 /* twoside tris */
     60 #define RADEON_TCL_FALLBACK_MATERIAL          0x8 /* material in vb */
     61 #define RADEON_TCL_FALLBACK_TEXGEN_0          0x10 /* texgen, unit 0 */
     62 #define RADEON_TCL_FALLBACK_TEXGEN_1          0x20 /* texgen, unit 1 */
     63 #define RADEON_TCL_FALLBACK_TEXGEN_2          0x40 /* texgen, unit 2 */
     64 #define RADEON_TCL_FALLBACK_TCL_DISABLE       0x80 /* user disable */
     65 #define RADEON_TCL_FALLBACK_FOGCOORDSPEC      0x100 /* fogcoord, sep. spec light */
     66 
     67 /* The blit width for texture uploads
     68  */
     69 #define BLIT_WIDTH_BYTES 1024
     70 
     71 /* Use the templated vertex format:
     72  */
     73 #define COLOR_IS_RGBA
     74 #define TAG(x) radeon##x
     75 #include "tnl_dd/t_dd_vertex.h"
     76 #undef TAG
     77 
     78 #define RADEON_RB_CLASS 0xdeadbeef
     79 
     80 struct radeon_renderbuffer
     81 {
     82 	struct swrast_renderbuffer base;
     83 
     84 	struct radeon_bo *bo;
     85 	unsigned int cpp;
     86 	/* unsigned int offset; */
     87 	unsigned int pitch;
     88 
     89 	struct radeon_bo *map_bo;
     90 	GLbitfield map_mode;
     91 	int map_x, map_y, map_w, map_h;
     92 	int map_pitch;
     93 	void *map_buffer;
     94 
     95 	uint32_t draw_offset; /* FBO */
     96 	/* boo Xorg 6.8.2 compat */
     97 	int has_surface;
     98 
     99 	GLuint pf_pending;  /**< sequence number of pending flip */
    100 	__DRIdrawable *dPriv;
    101 };
    102 
    103 struct radeon_framebuffer
    104 {
    105 	struct gl_framebuffer base;
    106 
    107 	struct radeon_renderbuffer *color_rb[2];
    108 };
    109 
    110 
    111 struct radeon_colorbuffer_state {
    112 	int roundEnable;
    113 	struct gl_renderbuffer *rb;
    114 	uint32_t draw_offset; /* offset into color renderbuffer - FBOs */
    115 };
    116 
    117 struct radeon_depthbuffer_state {
    118 	struct gl_renderbuffer *rb;
    119 };
    120 
    121 struct radeon_scissor_state {
    122 	drm_clip_rect_t rect;
    123 	GLboolean enabled;
    124 };
    125 
    126 struct radeon_state_atom {
    127 	struct radeon_state_atom *next, *prev;
    128 	const char *name;	/* for debug */
    129 	int cmd_size;		/* size in bytes */
    130         GLuint idx;
    131 	GLuint is_tcl;
    132         GLuint *cmd;		/* one or more cmd's */
    133 	GLuint *lastcmd;		/* one or more cmd's */
    134 	GLboolean dirty;	/* dirty-mark in emit_state_list */
    135         int (*check) (struct gl_context *, struct radeon_state_atom *atom); /* is this state active? */
    136         void (*emit) (struct gl_context *, struct radeon_state_atom *atom);
    137 };
    138 
    139 struct radeon_hw_state {
    140   	/* Head of the linked list of state atoms. */
    141 	struct radeon_state_atom atomlist;
    142 	int max_state_size;	/* Number of bytes necessary for a full state emit. */
    143 	int max_post_flush_size; /* Number of bytes necessary for post flushing emits */
    144 	GLboolean is_dirty, all_dirty;
    145 };
    146 
    147 
    148 /* Texture related */
    149 typedef struct _radeon_texture_image radeon_texture_image;
    150 
    151 
    152 /**
    153  * This is a subclass of swrast_texture_image since we use swrast
    154  * for software fallback rendering.
    155  */
    156 struct _radeon_texture_image {
    157 	struct swrast_texture_image base;
    158 
    159 	/**
    160 	 * If mt != 0, the image is stored in hardware format in the
    161 	 * given mipmap tree. In this case, base.Data may point into the
    162 	 * mapping of the buffer object that contains the mipmap tree.
    163 	 *
    164 	 * If mt == 0, the image is stored in normal memory pointed to
    165 	 * by base.Data.
    166 	 */
    167 	struct _radeon_mipmap_tree *mt;
    168 	struct radeon_bo *bo;
    169 	GLboolean used_as_render_target;
    170 };
    171 
    172 
    173 static inline radeon_texture_image *get_radeon_texture_image(struct gl_texture_image *image)
    174 {
    175 	return (radeon_texture_image*)image;
    176 }
    177 
    178 
    179 typedef struct radeon_tex_obj radeonTexObj, *radeonTexObjPtr;
    180 
    181 #define RADEON_TXO_MICRO_TILE               (1 << 3)
    182 
    183 /* Texture object in locally shared texture space.
    184  */
    185 struct radeon_tex_obj {
    186 	struct gl_texture_object base;
    187 	struct _radeon_mipmap_tree *mt;
    188 
    189 	/**
    190 	 * This is true if we've verified that the mipmap tree above is complete
    191 	 * and so on.
    192 	 */
    193 	GLboolean validated;
    194 	/* Minimum LOD to be used during rendering */
    195 	unsigned minLod;
    196 	/* Miximum LOD to be used during rendering */
    197 	unsigned maxLod;
    198 
    199 	GLuint override_offset;
    200 	GLboolean image_override; /* Image overridden by GLX_EXT_tfp */
    201 	GLuint tile_bits;	/* hw texture tile bits used on this texture */
    202         struct radeon_bo *bo;
    203 
    204 	GLuint pp_txfilter;	/* hardware register values */
    205 	GLuint pp_txformat;
    206 	GLuint pp_txformat_x;
    207 	GLuint pp_txsize;	/* npot only */
    208 	GLuint pp_txpitch;	/* npot only */
    209 	GLuint pp_border_color;
    210 	GLuint pp_cubic_faces;	/* cube face 1,2,3,4 log2 sizes */
    211 
    212 	GLboolean border_fallback;
    213 };
    214 
    215 static inline radeonTexObj* radeon_tex_obj(struct gl_texture_object *texObj)
    216 {
    217 	return (radeonTexObj*)texObj;
    218 }
    219 
    220 /* occlusion query */
    221 struct radeon_query_object {
    222 	struct gl_query_object Base;
    223 	struct radeon_bo *bo;
    224 	int curr_offset;
    225 	GLboolean emitted_begin;
    226 
    227 	/* Double linked list of not flushed query objects */
    228 	struct radeon_query_object *prev, *next;
    229 };
    230 
    231 /* Need refcounting on dma buffers:
    232  */
    233 struct radeon_dma_buffer {
    234 	int refcount;		/* the number of retained regions in buf */
    235 	drmBufPtr buf;
    236 };
    237 
    238 struct radeon_aos {
    239 	struct radeon_bo *bo; /** Buffer object where vertex data is stored */
    240 	int offset; /** Offset into buffer object, in bytes */
    241 	int components; /** Number of components per vertex */
    242 	int stride; /** Stride in dwords (may be 0 for repeating) */
    243 	int count; /** Number of vertices */
    244 };
    245 
    246 #define DMA_BO_FREE_TIME 100
    247 
    248 struct radeon_dma_bo {
    249   struct radeon_dma_bo *next, *prev;
    250   struct radeon_bo *bo;
    251   int expire_counter;
    252 };
    253 
    254 struct radeon_dma {
    255         /* Active dma region.  Allocations for vertices and retained
    256          * regions come from here.  Also used for emitting random vertices,
    257          * these may be flushed by calling flush_current();
    258          */
    259 	struct radeon_dma_bo free;
    260 	struct radeon_dma_bo wait;
    261 	struct radeon_dma_bo reserved;
    262         size_t current_used; /** Number of bytes allocated and forgotten about */
    263         size_t current_vertexptr; /** End of active vertex region */
    264         size_t minimum_size;
    265 
    266         /**
    267          * If current_vertexptr != current_used then flush must be non-zero.
    268          * flush must be called before non-active vertex allocations can be
    269          * performed.
    270          */
    271         void (*flush) (struct gl_context *);
    272 };
    273 
    274 /* radeon_swtcl.c
    275  */
    276 struct radeon_swtcl_info {
    277 
    278 	GLuint RenderIndex;
    279 	GLuint vertex_size;
    280 	GLubyte *verts;
    281 
    282 	/* Fallback rasterization functions
    283 	 */
    284 	GLuint hw_primitive;
    285 	GLenum render_primitive;
    286 	GLuint numverts;
    287 
    288 	struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
    289 	GLuint vertex_attr_count;
    290 
    291 	GLuint emit_prediction;
    292         struct radeon_bo *bo;
    293 };
    294 
    295 #define RADEON_MAX_AOS_ARRAYS		16
    296 struct radeon_tcl_info {
    297 	struct radeon_aos aos[RADEON_MAX_AOS_ARRAYS];
    298 	GLuint aos_count;
    299 	struct radeon_bo *elt_dma_bo; /** Buffer object that contains element indices */
    300 	int elt_dma_offset; /** Offset into this buffer object, in bytes */
    301 };
    302 
    303 struct radeon_ioctl {
    304 	GLuint vertex_offset;
    305 	GLuint vertex_max;
    306 	struct radeon_bo *bo;
    307 	GLuint vertex_size;
    308 };
    309 
    310 #define RADEON_MAX_PRIMS 64
    311 
    312 struct radeon_prim {
    313 	GLuint start;
    314 	GLuint end;
    315 	GLuint prim;
    316 };
    317 
    318 static inline GLuint radeonPackColor(GLuint cpp,
    319                                      GLubyte r, GLubyte g,
    320                                      GLubyte b, GLubyte a)
    321 {
    322 	switch (cpp) {
    323 	case 2:
    324 		return PACK_COLOR_565(r, g, b);
    325 	case 4:
    326 		return PACK_COLOR_8888(a, r, g, b);
    327 	default:
    328 		return 0;
    329 	}
    330 }
    331 
    332 #define MAX_CMD_BUF_SZ (16*1024)
    333 
    334 #define MAX_DMA_BUF_SZ (64*1024)
    335 
    336 struct radeon_store {
    337 	GLuint statenr;
    338 	GLuint primnr;
    339 	char cmd_buf[MAX_CMD_BUF_SZ];
    340 	int cmd_used;
    341 	int elts_start;
    342 };
    343 
    344 typedef void (*radeon_tri_func) (radeonContextPtr,
    345 				 radeonVertex *,
    346 				 radeonVertex *, radeonVertex *);
    347 
    348 typedef void (*radeon_line_func) (radeonContextPtr,
    349 				  radeonVertex *, radeonVertex *);
    350 
    351 typedef void (*radeon_point_func) (radeonContextPtr, radeonVertex *);
    352 
    353 #define RADEON_MAX_BOS 32
    354 struct radeon_state {
    355 	struct radeon_colorbuffer_state color;
    356 	struct radeon_depthbuffer_state depth;
    357 	struct radeon_scissor_state scissor;
    358 };
    359 
    360 /**
    361  * This structure holds the command buffer while it is being constructed.
    362  *
    363  * The first batch of commands in the buffer is always the state that needs
    364  * to be re-emitted when the context is lost. This batch can be skipped
    365  * otherwise.
    366  */
    367 struct radeon_cmdbuf {
    368 	struct radeon_cs_manager    *csm;
    369 	struct radeon_cs            *cs;
    370 	int size; /** # of dwords total */
    371 	unsigned int flushing:1; /** whether we're currently in FlushCmdBufLocked */
    372 };
    373 
    374 struct radeon_context {
    375    struct gl_context glCtx;             /**< base class, must be first */
    376    __DRIcontext *driContext;               /* DRI context */
    377    radeonScreenPtr radeonScreen;	/* Screen private DRI data */
    378 
    379    /* Texture object bookkeeping
    380     */
    381    int                   texture_depth;
    382    float                 initialMaxAnisotropy;
    383    uint32_t              texture_row_align;
    384    uint32_t              texture_rect_row_align;
    385    uint32_t              texture_compressed_row_align;
    386 
    387   struct radeon_dma dma;
    388   struct radeon_hw_state hw;
    389    /* Rasterization and vertex state:
    390     */
    391    GLuint TclFallback;
    392    GLuint Fallback;
    393    GLuint NewGLState;
    394    GLbitfield64 tnl_index_bitset;	/* index of bits for last tnl_install_attrs */
    395 
    396    /* Drawable information */
    397    unsigned int lastStamp;
    398 
    399    /* Busy waiting */
    400    GLuint do_usleeps;
    401    GLuint do_irqs;
    402    GLuint irqsEmitted;
    403    drm_radeon_irq_wait_t iw;
    404 
    405    /* Derived state - for r300 only */
    406    struct radeon_state state;
    407 
    408    struct radeon_swtcl_info swtcl;
    409    struct radeon_tcl_info tcl;
    410    /* Configuration cache
    411     */
    412    driOptionCache optionCache;
    413 
    414    struct radeon_cmdbuf cmdbuf;
    415 
    416    struct radeon_debug debug;
    417 
    418   drm_clip_rect_t fboRect;
    419   GLboolean front_cliprects;
    420 
    421    /**
    422     * Set if rendering has occurred to the drawable's front buffer.
    423     *
    424     * This is used in the DRI2 case to detect that glFlush should also copy
    425     * the contents of the fake front buffer to the real front buffer.
    426     */
    427    GLboolean front_buffer_dirty;
    428 
    429    /**
    430     * Track whether front-buffer rendering is currently enabled
    431     *
    432     * A separate flag is used to track this in order to support MRT more
    433     * easily.
    434     */
    435    GLboolean is_front_buffer_rendering;
    436 
    437    /**
    438     * Track whether front-buffer is the current read target.
    439     *
    440     * This is closely associated with is_front_buffer_rendering, but may
    441     * be set separately.  The DRI2 fake front buffer must be referenced
    442     * either way.
    443     */
    444    GLboolean is_front_buffer_reading;
    445 
    446    struct {
    447 	struct radeon_query_object *current;
    448 	struct radeon_state_atom queryobj;
    449    } query;
    450 
    451    struct {
    452 	   void (*swtcl_flush)(struct gl_context *ctx, uint32_t offset);
    453 	   void (*pre_emit_state)(radeonContextPtr rmesa);
    454 	   void (*fallback)(struct gl_context *ctx, GLuint bit, GLboolean mode);
    455 	   void (*free_context)(struct gl_context *ctx);
    456 	   void (*emit_query_finish)(radeonContextPtr radeon);
    457 	   void (*update_scissor)(struct gl_context *ctx);
    458 	   unsigned (*check_blit)(mesa_format mesa_format, uint32_t dst_pitch);
    459 	   unsigned (*blit)(struct gl_context *ctx,
    460                         struct radeon_bo *src_bo,
    461                         intptr_t src_offset,
    462                         mesa_format src_mesaformat,
    463                         unsigned src_pitch,
    464                         unsigned src_width,
    465                         unsigned src_height,
    466                         unsigned src_x_offset,
    467                         unsigned src_y_offset,
    468                         struct radeon_bo *dst_bo,
    469                         intptr_t dst_offset,
    470                         mesa_format dst_mesaformat,
    471                         unsigned dst_pitch,
    472                         unsigned dst_width,
    473                         unsigned dst_height,
    474                         unsigned dst_x_offset,
    475                         unsigned dst_y_offset,
    476                         unsigned reg_width,
    477                         unsigned reg_height,
    478                         unsigned flip_y);
    479 	   unsigned (*is_format_renderable)(mesa_format mesa_format);
    480 	   GLboolean (*revalidate_all_buffers)(struct gl_context *ctx);
    481    } vtbl;
    482 };
    483 
    484 static inline radeonContextPtr RADEON_CONTEXT(struct gl_context *ctx)
    485 {
    486 	return (radeonContextPtr) ctx;
    487 }
    488 
    489 static inline __DRIdrawable* radeon_get_drawable(radeonContextPtr radeon)
    490 {
    491 	return radeon->driContext->driDrawablePriv;
    492 }
    493 
    494 static inline __DRIdrawable* radeon_get_readable(radeonContextPtr radeon)
    495 {
    496 	return radeon->driContext->driReadablePriv;
    497 }
    498 
    499 extern const char *const radeonVendorString;
    500 
    501 const char *radeonGetRendererString(radeonScreenPtr radeonScreen);
    502 
    503 GLboolean radeonInitContext(radeonContextPtr radeon,
    504                             gl_api api,
    505 			    struct dd_function_table* functions,
    506 			    const struct gl_config * glVisual,
    507 			    __DRIcontext * driContextPriv,
    508 			    void *sharedContextPrivate);
    509 
    510 void radeonCleanupContext(radeonContextPtr radeon);
    511 GLboolean radeonUnbindContext(__DRIcontext * driContextPriv);
    512 void radeon_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable,
    513 				 GLboolean front_only);
    514 GLboolean radeonMakeCurrent(__DRIcontext * driContextPriv,
    515 			    __DRIdrawable * driDrawPriv,
    516 			    __DRIdrawable * driReadPriv);
    517 extern void radeonDestroyContext(__DRIcontext * driContextPriv);
    518 void radeon_prepare_render(radeonContextPtr radeon);
    519 
    520 #endif
    521