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_B8G8R8X8_UNORM; 48 s->cpp = 4; 49 break; 50 case GL_RGBA: 51 case GL_RGBA8: 52 rb->_BaseFormat = GL_RGBA; 53 rb->Format = MESA_FORMAT_B8G8R8A8_UNORM; 54 s->cpp = 4; 55 break; 56 case GL_RGB5: 57 rb->_BaseFormat = GL_RGB; 58 rb->Format = MESA_FORMAT_B5G6R5_UNORM; 59 s->cpp = 2; 60 break; 61 case GL_DEPTH_COMPONENT16: 62 rb->_BaseFormat = GL_DEPTH_COMPONENT; 63 rb->Format = MESA_FORMAT_Z_UNORM16; 64 s->cpp = 2; 65 break; 66 case GL_DEPTH_COMPONENT: 67 case GL_DEPTH_COMPONENT24: 68 case GL_STENCIL_INDEX8_EXT: 69 case GL_DEPTH24_STENCIL8_EXT: 70 rb->_BaseFormat = GL_DEPTH_STENCIL; 71 rb->Format = MESA_FORMAT_S8_UINT_Z24_UNORM; 72 s->cpp = 4; 73 break; 74 default: 75 return GL_FALSE; 76 } 77 78 s->format = rb->Format; 79 80 return GL_TRUE; 81 } 82 83 static GLboolean 84 nouveau_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb, 85 GLenum internalFormat, 86 GLuint width, GLuint height) 87 { 88 struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface; 89 90 if (!set_renderbuffer_format(rb, internalFormat)) 91 return GL_FALSE; 92 93 rb->Width = width; 94 rb->Height = height; 95 96 nouveau_surface_alloc(ctx, s, TILED, NOUVEAU_BO_VRAM | NOUVEAU_BO_MAP, 97 rb->Format, width, height); 98 99 context_dirty(ctx, FRAMEBUFFER); 100 return GL_TRUE; 101 } 102 103 static void 104 nouveau_renderbuffer_del(struct gl_context *ctx, struct gl_renderbuffer *rb) 105 { 106 struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface; 107 108 nouveau_surface_ref(NULL, s); 109 _mesa_delete_renderbuffer(ctx, rb); 110 } 111 112 static struct gl_renderbuffer * 113 nouveau_renderbuffer_new(struct gl_context *ctx, GLuint name) 114 { 115 struct gl_renderbuffer *rb; 116 117 rb = (struct gl_renderbuffer *) 118 CALLOC_STRUCT(nouveau_renderbuffer); 119 if (!rb) 120 return NULL; 121 122 _mesa_init_renderbuffer(rb, name); 123 124 rb->AllocStorage = nouveau_renderbuffer_storage; 125 rb->Delete = nouveau_renderbuffer_del; 126 127 return rb; 128 } 129 130 static void 131 nouveau_renderbuffer_map(struct gl_context *ctx, 132 struct gl_renderbuffer *rb, 133 GLuint x, GLuint y, GLuint w, GLuint h, 134 GLbitfield mode, 135 GLubyte **out_map, 136 GLint *out_stride) 137 { 138 struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface; 139 GLubyte *map; 140 int stride; 141 int flags = 0; 142 143 if (mode & GL_MAP_READ_BIT) 144 flags |= NOUVEAU_BO_RD; 145 if (mode & GL_MAP_WRITE_BIT) 146 flags |= NOUVEAU_BO_WR; 147 148 nouveau_bo_map(s->bo, flags, context_client(ctx)); 149 150 map = s->bo->map; 151 stride = s->pitch; 152 153 if (rb->Name == 0) { 154 map += stride * (rb->Height - 1); 155 stride = -stride; 156 } 157 158 map += x * s->cpp; 159 map += (int)y * stride; 160 161 *out_map = map; 162 *out_stride = stride; 163 } 164 165 static void 166 nouveau_renderbuffer_unmap(struct gl_context *ctx, 167 struct gl_renderbuffer *rb) 168 { 169 } 170 171 static GLboolean 172 nouveau_renderbuffer_dri_storage(struct gl_context *ctx, struct gl_renderbuffer *rb, 173 GLenum internalFormat, 174 GLuint width, GLuint height) 175 { 176 if (!set_renderbuffer_format(rb, internalFormat)) 177 return GL_FALSE; 178 179 rb->Width = width; 180 rb->Height = height; 181 182 return GL_TRUE; 183 } 184 185 struct gl_renderbuffer * 186 nouveau_renderbuffer_dri_new(GLenum format, __DRIdrawable *drawable) 187 { 188 struct gl_renderbuffer *rb; 189 190 rb = nouveau_renderbuffer_new(NULL, 0); 191 if (!rb) 192 return NULL; 193 194 rb->AllocStorage = nouveau_renderbuffer_dri_storage; 195 196 if (!set_renderbuffer_format(rb, format)) { 197 nouveau_renderbuffer_del(NULL, rb); 198 return NULL; 199 } 200 201 return rb; 202 } 203 204 static struct gl_framebuffer * 205 nouveau_framebuffer_new(struct gl_context *ctx, GLuint name) 206 { 207 struct nouveau_framebuffer *nfb; 208 209 nfb = CALLOC_STRUCT(nouveau_framebuffer); 210 if (!nfb) 211 return NULL; 212 213 _mesa_initialize_user_framebuffer(&nfb->base, name); 214 215 return &nfb->base; 216 } 217 218 struct gl_framebuffer * 219 nouveau_framebuffer_dri_new(const struct gl_config *visual) 220 { 221 struct nouveau_framebuffer *nfb; 222 223 nfb = CALLOC_STRUCT(nouveau_framebuffer); 224 if (!nfb) 225 return NULL; 226 227 _mesa_initialize_window_framebuffer(&nfb->base, visual); 228 nfb->need_front = !visual->doubleBufferMode; 229 230 return &nfb->base; 231 } 232 233 static void 234 nouveau_bind_framebuffer(struct gl_context *ctx, GLenum target, 235 struct gl_framebuffer *dfb, 236 struct gl_framebuffer *rfb) 237 { 238 context_dirty(ctx, FRAMEBUFFER); 239 } 240 241 static void 242 nouveau_framebuffer_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb, 243 GLenum attachment, struct gl_renderbuffer *rb) 244 { 245 _mesa_FramebufferRenderbuffer_sw(ctx, fb, attachment, rb); 246 247 context_dirty(ctx, FRAMEBUFFER); 248 } 249 250 static void 251 nouveau_render_texture(struct gl_context *ctx, struct gl_framebuffer *fb, 252 struct gl_renderbuffer_attachment *att) 253 { 254 struct gl_renderbuffer *rb = att->Renderbuffer; 255 struct gl_texture_image *ti = rb->TexImage; 256 257 /* Update the renderbuffer fields from the texture. */ 258 nouveau_surface_ref(&to_nouveau_teximage(ti)->surface, 259 &to_nouveau_renderbuffer(rb)->surface); 260 261 context_dirty(ctx, FRAMEBUFFER); 262 } 263 264 static void 265 nouveau_finish_render_texture(struct gl_context *ctx, 266 struct gl_renderbuffer *rb) 267 { 268 if (rb && rb->TexImage) 269 texture_dirty(rb->TexImage->TexObject); 270 } 271 272 static int 273 validate_format_bpp(mesa_format format) 274 { 275 switch (format) { 276 case MESA_FORMAT_B8G8R8X8_UNORM: 277 case MESA_FORMAT_B8G8R8A8_UNORM: 278 case MESA_FORMAT_S8_UINT_Z24_UNORM: 279 return 32; 280 case MESA_FORMAT_B5G6R5_UNORM: 281 case MESA_FORMAT_Z_UNORM16: 282 return 16; 283 default: 284 return 0; 285 } 286 } 287 288 static void 289 nouveau_check_framebuffer_complete(struct gl_context *ctx, 290 struct gl_framebuffer *fb) 291 { 292 struct gl_renderbuffer_attachment *color = 293 &fb->Attachment[BUFFER_COLOR0]; 294 struct gl_renderbuffer_attachment *depth = 295 &fb->Attachment[BUFFER_DEPTH]; 296 int color_bpp = 0, zeta_bpp; 297 298 if (color->Type == GL_TEXTURE) { 299 color_bpp = validate_format_bpp( 300 color->Renderbuffer->TexImage->TexFormat); 301 if (!color_bpp) 302 goto err; 303 } 304 305 if (depth->Type == GL_TEXTURE) { 306 zeta_bpp = validate_format_bpp( 307 depth->Renderbuffer->TexImage->TexFormat); 308 if (!zeta_bpp) 309 goto err; 310 /* NV04/NV05 requires same bpp-ness for color/zeta */ 311 if (context_chipset(ctx) < 0x10 && 312 color_bpp && color_bpp != zeta_bpp) 313 goto err; 314 } 315 316 return; 317 err: 318 fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; 319 return; 320 } 321 322 void 323 nouveau_fbo_functions_init(struct dd_function_table *functions) 324 { 325 functions->NewFramebuffer = nouveau_framebuffer_new; 326 functions->NewRenderbuffer = nouveau_renderbuffer_new; 327 functions->MapRenderbuffer = nouveau_renderbuffer_map; 328 functions->UnmapRenderbuffer = nouveau_renderbuffer_unmap; 329 functions->BindFramebuffer = nouveau_bind_framebuffer; 330 functions->FramebufferRenderbuffer = nouveau_framebuffer_renderbuffer; 331 functions->RenderTexture = nouveau_render_texture; 332 functions->FinishRenderTexture = nouveau_finish_render_texture; 333 functions->ValidateFramebuffer = nouveau_check_framebuffer_complete; 334 } 335
