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 "util/u_transfer.h"
   7 #include "r300_screen.h"
   8
   9 #include "r300_winsys.h"
  10 #include "r300_context.h"
  11
  12 #define R300_BUFFER_MAGIC 0xabcd1234
  13
  14 struct r300_buffer_range {
  15     uint32_t start;
  16     uint32_t end;
  17 };
  18 #define R300_BUFFER_MAX_RANGES 32
  19
  20 struct r300_buffer
  21 {
  22     struct u_resource b;
  23
  24     uint32_t magic;
  25
  26     struct r300_winsys_buffer *buf;
  27
  28     void *user_buffer;
  29     struct r300_buffer_range ranges[R300_BUFFER_MAX_RANGES];
  30     unsigned num_ranges;
  31
  32     void *map;
  33 };
  34
  35 static INLINE struct r300_buffer *
  36 r300_buffer(struct pipe_resource *buffer)
  37 {
  38     if (buffer) {
  39         assert(((struct r300_buffer *)buffer)->magic == R300_BUFFER_MAGIC);
  40         return (struct r300_buffer *)buffer;
  41     }
  42     return NULL;
  43 }
  44
  45 static INLINE boolean
  46 r300_buffer_is_user_buffer(struct pipe_resource *buffer)
  47 {
  48     return r300_buffer(buffer)->user_buffer ? true : false;
  49 }
  50
  51 static INLINE boolean r300_add_buffer(struct r300_winsys_screen *rws,
  52                                       struct pipe_resource *buffer,
  53                                       int rd, int wr)
  54 {
  55     struct r300_buffer *buf = r300_buffer(buffer);
  56
  57     if (!buf->buf)
  58         return true;
  59
  60     return rws->add_buffer(rws, buf->buf, rd, wr);
  61 }
  62
  63
  64 static INLINE boolean r300_add_texture(struct r300_winsys_screen *rws,
  65                                        struct r300_texture *tex,
  66                                        int rd, int wr)
  67 {
  68     return rws->add_buffer(rws, tex->buffer, rd, wr);
  69 }
  70
  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_resource **index_buffer,
  93                              unsigned index_size,
  94                              unsigned start,
  95                              unsigned count);
  96
  97
  98 struct pipe_resource *r300_buffer_create(struct pipe_screen *screen,
  99                                          const struct pipe_resource *template);
 100
 101 struct pipe_resource *r300_user_buffer_create(struct pipe_screen *screen,
 102                                               void *ptr,
 103                                               unsigned bytes,
 104                                               unsigned usage);
 105
 106 #endif