src/gallium/drivers/r300/r300_screen_buffer.h

   1 #ifndef R300_SCREEN_BUFFER_H
   2 #define R300_SCREEN_BUFFER_H
   3 #include <stdio.h>
   4 #include "pipe/p_compiler.h"
   5 #include "pipe/p_state.h"
   6 #include "r300_screen.h"
   7
   8 #include "r300_winsys.h"
   9 #include "r300_context.h"
  10
  11 #define R300_BUFFER_MAGIC 0xabcd1234
  12
  13 struct r300_buffer_range {
  14     uint32_t start;
  15     uint32_t end;
  16 };
  17 #define R300_BUFFER_MAX_RANGES 32
  18
  19 struct r300_buffer
  20 {
  21     struct pipe_buffer base;
  22
  23     uint32_t magic;
  24
  25     struct r300_winsys_buffer *buf;
  26
  27     void *user_buffer;
  28     struct r300_buffer_range ranges[R300_BUFFER_MAX_RANGES];
  29     unsigned num_ranges;
  30
  31     void *map;
  32 };
  33
  34 static INLINE struct r300_buffer *
  35 r300_buffer(struct pipe_buffer *buffer)
  36 {
  37     if (buffer) {
  38         assert(((struct r300_buffer *)buffer)->magic == R300_BUFFER_MAGIC);
  39         return (struct r300_buffer *)buffer;
  40     }
  41     return NULL;
  42 }
  43
  44 static INLINE boolean
  45 r300_buffer_is_user_buffer(struct pipe_buffer *buffer)
  46 {
  47     return r300_buffer(buffer)->user_buffer ? true : false;
  48 }
  49
  50 static INLINE boolean r300_add_buffer(struct r300_winsys_screen *rws,
  51                                       struct pipe_buffer *buffer,
  52                                       int rd, int wr)
  53 {
  54     struct r300_buffer *buf = r300_buffer(buffer);
  55
  56     if (!buf->buf)
  57         return true;
  58
  59     return rws->add_buffer(rws, buf->buf, rd, wr);
  60 }
  61
  62
  63 static INLINE boolean r300_add_texture(struct r300_winsys_screen *rws,
  64                                        struct r300_texture *tex,
  65                                        int rd, int wr)
  66 {
  67     return rws->add_buffer(rws, tex->buffer, rd, wr);
  68 }
  69
  70 void r300_screen_init_buffer_functions(struct r300_screen *r300screen);
  71
  72 static INLINE void r300_buffer_write_reloc(struct r300_winsys_screen *rws,
  73                                       struct r300_buffer *buf,
  74                                       uint32_t rd, uint32_t wd, uint32_t flags)
  75 {
  76     if (!buf->buf)
  77         return;
  78
  79     rws->write_cs_reloc(rws, buf->buf, rd, wd, flags);
  80 }
  81
  82 static INLINE void r300_texture_write_reloc(struct r300_winsys_screen *rws,
  83                                             struct r300_texture *texture,
  84                                             uint32_t rd, uint32_t wd, uint32_t flags)
  85 {
  86     rws->write_cs_reloc(rws, texture->buffer, rd, wd, flags);
  87 }
  88
  89 int r300_upload_user_buffers(struct r300_context *r300);
  90
  91 int r300_upload_index_buffer(struct r300_context *r300,
  92                              struct pipe_buffer **index_buffer,
  93                              unsigned index_size,
  94                              unsigned start,
  95                              unsigned count);
  96
  97 boolean r300_buffer_is_referenced(struct r300_context *r300,
  98                                   struct pipe_buffer *buf);
  99 #endif