1/* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 2010 LunarG Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Chia-I Wu <olv@lunarg.com> 26 */ 27 28#include "main/texobj.h" 29#include "main/teximage.h" 30#include "util/u_inlines.h" 31#include "util/u_format.h" 32#include "st_cb_eglimage.h" 33#include "st_cb_fbo.h" 34#include "st_context.h" 35#include "st_texture.h" 36#include "st_format.h" 37#include "st_manager.h" 38#include "st_sampler_view.h" 39 40 41/** 42 * Return the base format just like _mesa_base_fbo_format does. 43 */ 44static GLenum 45st_pipe_format_to_base_format(enum pipe_format format) 46{ 47 GLenum base_format; 48 49 if (util_format_is_depth_or_stencil(format)) { 50 if (util_format_is_depth_and_stencil(format)) { 51 base_format = GL_DEPTH_STENCIL; 52 } 53 else { 54 if (format == PIPE_FORMAT_S8_UINT) 55 base_format = GL_STENCIL_INDEX; 56 else 57 base_format = GL_DEPTH_COMPONENT; 58 } 59 } 60 else { 61 /* is this enough? */ 62 if (util_format_has_alpha(format)) 63 base_format = GL_RGBA; 64 else 65 base_format = GL_RGB; 66 } 67 68 return base_format; 69} 70 71static void 72st_egl_image_target_renderbuffer_storage(struct gl_context *ctx, 73 struct gl_renderbuffer *rb, 74 GLeglImageOES image_handle) 75{ 76 struct st_context *st = st_context(ctx); 77 struct st_renderbuffer *strb = st_renderbuffer(rb); 78 struct pipe_surface *ps; 79 80 ps = st_manager_get_egl_image_surface(st, (void *) image_handle); 81 if (ps) { 82 strb->Base.Width = ps->width; 83 strb->Base.Height = ps->height; 84 strb->Base.Format = st_pipe_format_to_mesa_format(ps->format); 85 strb->Base._BaseFormat = st_pipe_format_to_base_format(ps->format); 86 strb->Base.InternalFormat = strb->Base._BaseFormat; 87 88 pipe_surface_reference(&strb->surface, ps); 89 pipe_resource_reference(&strb->texture, ps->texture); 90 91 pipe_surface_reference(&ps, NULL); 92 } 93} 94 95static void 96st_bind_surface(struct gl_context *ctx, GLenum target, 97 struct gl_texture_object *texObj, 98 struct gl_texture_image *texImage, 99 struct pipe_surface *ps) 100{ 101 struct st_context *st = st_context(ctx); 102 struct st_texture_object *stObj; 103 struct st_texture_image *stImage; 104 GLenum internalFormat; 105 mesa_format texFormat; 106 107 /* map pipe format to base format */ 108 if (util_format_get_component_bits(ps->format, UTIL_FORMAT_COLORSPACE_RGB, 3) > 0) 109 internalFormat = GL_RGBA; 110 else 111 internalFormat = GL_RGB; 112 113 stObj = st_texture_object(texObj); 114 stImage = st_texture_image(texImage); 115 116 /* switch to surface based */ 117 if (!stObj->surface_based) { 118 _mesa_clear_texture_object(ctx, texObj); 119 stObj->surface_based = GL_TRUE; 120 } 121 122 texFormat = st_pipe_format_to_mesa_format(ps->format); 123 124 /* TODO RequiredTextureImageUnits should probably be reset back 125 * to 1 somewhere if different texture is bound?? 126 */ 127 if (texFormat == MESA_FORMAT_NONE) { 128 switch (ps->format) { 129 case PIPE_FORMAT_NV12: 130 texFormat = MESA_FORMAT_R_UNORM8; 131 texObj->RequiredTextureImageUnits = 2; 132 break; 133 case PIPE_FORMAT_IYUV: 134 texFormat = MESA_FORMAT_R_UNORM8; 135 texObj->RequiredTextureImageUnits = 3; 136 break; 137 default: 138 unreachable("bad YUV format!"); 139 } 140 } 141 142 _mesa_init_teximage_fields(ctx, texImage, 143 ps->width, ps->height, 1, 0, internalFormat, 144 texFormat); 145 146 /* FIXME create a non-default sampler view from the pipe_surface? */ 147 pipe_resource_reference(&stObj->pt, ps->texture); 148 st_texture_release_all_sampler_views(st, stObj); 149 pipe_resource_reference(&stImage->pt, stObj->pt); 150 151 stObj->surface_format = ps->format; 152 153 _mesa_dirty_texobj(ctx, texObj); 154} 155 156static void 157st_egl_image_target_texture_2d(struct gl_context *ctx, GLenum target, 158 struct gl_texture_object *texObj, 159 struct gl_texture_image *texImage, 160 GLeglImageOES image_handle) 161{ 162 struct st_context *st = st_context(ctx); 163 struct pipe_surface *ps; 164 165 ps = st_manager_get_egl_image_surface(st, (void *) image_handle); 166 if (ps) { 167 st_bind_surface(ctx, target, texObj, texImage, ps); 168 pipe_surface_reference(&ps, NULL); 169 } 170} 171 172void 173st_init_eglimage_functions(struct dd_function_table *functions) 174{ 175 functions->EGLImageTargetTexture2D = st_egl_image_target_texture_2d; 176 functions->EGLImageTargetRenderbufferStorage = st_egl_image_target_renderbuffer_storage; 177} 178