src/mesa/drivers/dri/nouveau/nouveau_fbo.c

   1 /*
   2  * Copyright (C) 2009 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nouveau_driver.h"
  28 #include "nouveau_fbo.h"
  29 #include "nouveau_context.h"
  30 #include "nouveau_texture.h"
  31
  32 #include "main/framebuffer.h"
  33 #include "main/renderbuffer.h"
  34 #include "main/fbobject.h"
  35
  36 static GLboolean
  37 set_renderbuffer_format(struct gl_renderbuffer *rb, GLenum internalFormat)
  38 {
  39         struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface;
  40
  41         rb->InternalFormat  = internalFormat;
  42
  43         switch (internalFormat) {
  44         case GL_RGB:
  45         case GL_RGB8:
  46                 rb->_BaseFormat  = GL_RGB;
  47                 rb->Format = MESA_FORMAT_XRGB8888;
  48                 rb->DataType = GL_UNSIGNED_BYTE;
  49                 s->cpp = 4;
  50                 break;
  51         case GL_RGBA:
  52         case GL_RGBA8:
  53                 rb->_BaseFormat  = GL_RGBA;
  54                 rb->Format = MESA_FORMAT_ARGB8888;
  55                 rb->DataType = GL_UNSIGNED_BYTE;
  56                 s->cpp = 4;
  57                 break;
  58         case GL_RGB5:
  59                 rb->_BaseFormat  = GL_RGB;
  60                 rb->Format = MESA_FORMAT_RGB565;
  61                 rb->DataType = GL_UNSIGNED_BYTE;
  62                 s->cpp = 2;
  63                 break;
  64         case GL_DEPTH_COMPONENT16:
  65                 rb->_BaseFormat  = GL_DEPTH_COMPONENT;
  66                 rb->Format = MESA_FORMAT_Z16;
  67                 rb->DataType = GL_UNSIGNED_SHORT;
  68                 s->cpp = 2;
  69                 break;
  70         case GL_DEPTH_COMPONENT24:
  71         case GL_STENCIL_INDEX8_EXT:
  72         case GL_DEPTH24_STENCIL8_EXT:
  73                 rb->_BaseFormat  = GL_DEPTH_STENCIL;
  74                 rb->Format = MESA_FORMAT_Z24_S8;
  75                 rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
  76                 s->cpp = 4;
  77                 break;
  78         default:
  79                 return GL_FALSE;
  80         }
  81
  82         s->format = rb->Format;
  83
  84         return GL_TRUE;
  85 }
  86
  87 static GLboolean
  88 nouveau_renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
  89                              GLenum internalFormat,
  90                              GLuint width, GLuint height)
  91 {
  92         struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface;
  93
  94         if (!set_renderbuffer_format(rb, internalFormat))
  95                 return GL_FALSE;
  96
  97         rb->Width = width;
  98         rb->Height = height;
  99
 100         nouveau_surface_alloc(ctx, s, TILED, NOUVEAU_BO_VRAM | NOUVEAU_BO_MAP,
 101                               rb->Format, width, height);
 102
 103         context_dirty(ctx, FRAMEBUFFER);
 104         return GL_TRUE;
 105 }
 106
 107 static void
 108 nouveau_renderbuffer_del(struct gl_renderbuffer *rb)
 109 {
 110         struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface;
 111
 112         nouveau_surface_ref(NULL, s);
 113         FREE(rb);
 114 }
 115
 116 static struct gl_renderbuffer *
 117 nouveau_renderbuffer_new(GLcontext *ctx, GLuint name)
 118 {
 119         struct gl_renderbuffer *rb;
 120
 121         rb = (struct gl_renderbuffer *)
 122                 CALLOC_STRUCT(nouveau_renderbuffer);
 123         if (!rb)
 124                 return NULL;
 125
 126         _mesa_init_renderbuffer(rb, name);
 127
 128         rb->AllocStorage = nouveau_renderbuffer_storage;
 129         rb->Delete = nouveau_renderbuffer_del;
 130
 131         return rb;
 132 }
 133
 134 static GLboolean
 135 nouveau_renderbuffer_dri_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
 136                                  GLenum internalFormat,
 137                                  GLuint width, GLuint height)
 138 {
 139         if (!set_renderbuffer_format(rb, internalFormat))
 140                 return GL_FALSE;
 141
 142         rb->Width = width;
 143         rb->Height = height;
 144
 145         return GL_TRUE;
 146 }
 147
 148 struct gl_renderbuffer *
 149 nouveau_renderbuffer_dri_new(GLenum format, __DRIdrawable *drawable)
 150 {
 151         struct gl_renderbuffer *rb;
 152
 153         rb = nouveau_renderbuffer_new(NULL, 0);
 154         if (!rb)
 155                 return NULL;
 156
 157         rb->AllocStorage = nouveau_renderbuffer_dri_storage;
 158
 159         if (!set_renderbuffer_format(rb, format)) {
 160                 nouveau_renderbuffer_del(rb);
 161                 return NULL;
 162         }
 163
 164         return rb;
 165 }
 166
 167 static struct gl_framebuffer *
 168 nouveau_framebuffer_new(GLcontext *ctx, GLuint name)
 169 {
 170         struct nouveau_framebuffer *nfb;
 171
 172         nfb = CALLOC_STRUCT(nouveau_framebuffer);
 173         if (!nfb)
 174                 return NULL;
 175
 176         _mesa_initialize_user_framebuffer(&nfb->base, name);
 177
 178         return &nfb->base;
 179 }
 180
 181 struct gl_framebuffer *
 182 nouveau_framebuffer_dri_new(const GLvisual *visual)
 183 {
 184         struct nouveau_framebuffer *nfb;
 185
 186         nfb = CALLOC_STRUCT(nouveau_framebuffer);
 187         if (!nfb)
 188                 return NULL;
 189
 190         _mesa_initialize_window_framebuffer(&nfb->base, visual);
 191
 192         return &nfb->base;
 193 }
 194
 195 static void
 196 nouveau_bind_framebuffer(GLcontext *ctx, GLenum target,
 197                          struct gl_framebuffer *dfb,
 198                          struct gl_framebuffer *rfb)
 199 {
 200         context_dirty(ctx, FRAMEBUFFER);
 201 }
 202
 203 static void
 204 nouveau_framebuffer_renderbuffer(GLcontext *ctx, struct gl_framebuffer *fb,
 205                                  GLenum attachment, struct gl_renderbuffer *rb)
 206 {
 207         _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
 208
 209         context_dirty(ctx, FRAMEBUFFER);
 210 }
 211
 212 static GLenum
 213 get_tex_format(struct gl_texture_image *ti)
 214 {
 215         switch (ti->TexFormat) {
 216         case MESA_FORMAT_ARGB8888:
 217                 return GL_RGBA8;
 218         case MESA_FORMAT_XRGB8888:
 219                 return GL_RGB8;
 220         case MESA_FORMAT_RGB565:
 221                 return GL_RGB5;
 222         default:
 223                 assert(0);
 224         }
 225 }
 226
 227 static void
 228 nouveau_render_texture(GLcontext *ctx, struct gl_framebuffer *fb,
 229                        struct gl_renderbuffer_attachment *att)
 230 {
 231         struct gl_renderbuffer *rb = att->Renderbuffer;
 232         struct gl_texture_image *ti =
 233                 att->Texture->Image[att->CubeMapFace][att->TextureLevel];
 234         int ret;
 235
 236         /* Allocate a renderbuffer object for the texture if we
 237          * haven't already done so. */
 238         if (!rb) {
 239                 rb = nouveau_renderbuffer_new(ctx, ~0);
 240                 assert(rb);
 241
 242                 rb->AllocStorage = NULL;
 243                 _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
 244         }
 245
 246         /* Update the renderbuffer fields from the texture. */
 247         ret = set_renderbuffer_format(rb, get_tex_format(ti));
 248         assert(ret);
 249
 250         rb->Width = ti->Width;
 251         rb->Height = ti->Height;
 252         nouveau_surface_ref(&to_nouveau_teximage(ti)->surface,
 253                             &to_nouveau_renderbuffer(rb)->surface);
 254
 255         context_dirty(ctx, FRAMEBUFFER);
 256 }
 257
 258 static void
 259 nouveau_finish_render_texture(GLcontext *ctx,
 260                               struct gl_renderbuffer_attachment *att)
 261 {
 262         texture_dirty(att->Texture);
 263 }
 264
 265 void
 266 nouveau_fbo_functions_init(struct dd_function_table *functions)
 267 {
 268         functions->NewFramebuffer = nouveau_framebuffer_new;
 269         functions->NewRenderbuffer = nouveau_renderbuffer_new;
 270         functions->BindFramebuffer = nouveau_bind_framebuffer;
 271         functions->FramebufferRenderbuffer = nouveau_framebuffer_renderbuffer;
 272         functions->RenderTexture = nouveau_render_texture;
 273         functions->FinishRenderTexture = nouveau_finish_render_texture;
 274 }