src/mesa/drivers/dri/radeon/radeon_fbo.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Red Hat Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include "main/imports.h"
  30 #include "main/macros.h"
  31 #include "main/mtypes.h"
  32 #include "main/fbobject.h"
  33 #include "main/framebuffer.h"
  34 #include "main/renderbuffer.h"
  35 #include "main/context.h"
  36 #include "main/texformat.h"
  37 #include "main/texrender.h"
  38
  39 #include "radeon_common.h"
  40
  41 static struct gl_framebuffer *
  42 radeon_new_framebuffer(GLcontext *ctx, GLuint name)
  43 {
  44   return _mesa_new_framebuffer(ctx, name);
  45 }
  46
  47 static void
  48 radeon_delete_renderbuffer(struct gl_renderbuffer *rb)
  49 {
  50   GET_CURRENT_CONTEXT(ctx);
  51   struct radeon_renderbuffer *rrb = radeon_renderbuffer(rb);
  52
  53   ASSERT(rrb);
  54
  55   if (rrb && rrb->bo) {
  56     radeon_bo_unref(rrb->bo);
  57   }
  58
  59
  60   _mesa_free(rrb);
  61 }
  62
  63 static void
  64 radeon_resize_buffers(GLcontext *ctx, struct gl_framebuffer *fb,
  65                      GLuint width, GLuint height)
  66 {
  67
  68 }
  69
  70 static void *
  71 radeon_get_pointer(GLcontext *ctx, struct gl_renderbuffer *rb,
  72                    GLint x, GLint y)
  73 {
  74   return NULL;
  75 }
  76
  77 /**
  78  * Called via glRenderbufferStorageEXT() to set the format and allocate
  79  * storage for a user-created renderbuffer.
  80  */
  81 static GLboolean
  82 radeon_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
  83                                  GLenum internalFormat,
  84                                  GLuint width, GLuint height)
  85 {
  86   struct radeon_context *radeon = RADEON_CONTEXT(ctx);
  87   struct radeon_renderbuffer *rrb = radeon_renderbuffer(rb);
  88   GLboolean software_buffer = GL_FALSE;
  89   int cpp;
  90
  91    ASSERT(rb->Name != 0);
  92
  93    if (software_buffer) {
  94       return _mesa_soft_renderbuffer_storage(ctx, rb, internalFormat,
  95                                              width, height);
  96    }
  97    else {
  98      /* TODO Alloc a BO */
  99        return GL_TRUE;
 100    }
 101
 102 }
 103
 104 static struct gl_renderbuffer *
 105 radeon_new_renderbuffer(GLcontext * ctx, GLuint name)
 106 {
 107   struct radeon_renderbuffer *rrb;
 108
 109   rrb = CALLOC_STRUCT(radeon_renderbuffer);
 110   if (!rrb)
 111     return NULL;
 112
 113   _mesa_init_renderbuffer(&rrb->base, name);
 114   rrb->base.ClassID = RADEON_RB_CLASS;
 115
 116   rrb->base.Delete = radeon_delete_renderbuffer;
 117   rrb->base.AllocStorage = radeon_alloc_renderbuffer_storage;
 118   rrb->base.GetPointer = radeon_get_pointer;
 119
 120   return &rrb->base;
 121 }
 122
 123 static void
 124 radeon_bind_framebuffer(GLcontext * ctx, GLenum target,
 125                        struct gl_framebuffer *fb, struct gl_framebuffer *fbread)
 126 {
 127    if (target == GL_FRAMEBUFFER_EXT || target == GL_DRAW_FRAMEBUFFER_EXT) {
 128       radeon_draw_buffer(ctx, fb);
 129    }
 130    else {
 131       /* don't need to do anything if target == GL_READ_FRAMEBUFFER_EXT */
 132    }
 133 }
 134
 135 static void
 136 radeon_framebuffer_renderbuffer(GLcontext * ctx,
 137                                struct gl_framebuffer *fb,
 138                                GLenum attachment, struct gl_renderbuffer *rb)
 139 {
 140
 141    radeonFlush(ctx);
 142
 143    _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
 144    radeon_draw_buffer(ctx, fb);
 145 }
 146
 147 static struct radeon_renderbuffer *
 148 radeon_wrap_texture(GLcontext * ctx, struct gl_texture_image *texImage)
 149 {
 150
 151 }
 152 static void
 153 radeon_render_texture(GLcontext * ctx,
 154                      struct gl_framebuffer *fb,
 155                      struct gl_renderbuffer_attachment *att)
 156 {
 157
 158 }
 159
 160 static void
 161 radeon_finish_render_texture(GLcontext * ctx,
 162                             struct gl_renderbuffer_attachment *att)
 163 {
 164
 165 }
 166 static void
 167 radeon_validate_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb)
 168 {
 169 }
 170
 171 static void
 172 radeon_blit_framebuffer(GLcontext *ctx,
 173                        GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
 174                        GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
 175                        GLbitfield mask, GLenum filter)
 176 {
 177 }
 178
 179 void radeon_fbo_init(struct radeon_context *radeon)
 180 {
 181   radeon->glCtx->Driver.NewFramebuffer = radeon_new_framebuffer;
 182   radeon->glCtx->Driver.NewRenderbuffer = radeon_new_renderbuffer;
 183   radeon->glCtx->Driver.BindFramebuffer = radeon_bind_framebuffer;
 184   radeon->glCtx->Driver.FramebufferRenderbuffer = radeon_framebuffer_renderbuffer;
 185   radeon->glCtx->Driver.RenderTexture = radeon_render_texture;
 186   radeon->glCtx->Driver.FinishRenderTexture = radeon_finish_render_texture;
 187   radeon->glCtx->Driver.ResizeBuffers = radeon_resize_buffers;
 188   radeon->glCtx->Driver.ValidateFramebuffer = radeon_validate_framebuffer;
 189   radeon->glCtx->Driver.BlitFramebuffer = radeon_blit_framebuffer;
 190 }
 191
 192
 193