| /* |
| * Copyright 2006 VMware, Inc. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #ifndef INTEL_FBO_H |
| #define INTEL_FBO_H |
| |
| #include <stdbool.h> |
| #include <assert.h> |
| #include "main/formats.h" |
| #include "main/macros.h" |
| #include "brw_context.h" |
| #include "intel_mipmap_tree.h" |
| #include "intel_screen.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct intel_mipmap_tree; |
| |
| /** |
| * Intel renderbuffer, derived from gl_renderbuffer. |
| */ |
| struct intel_renderbuffer |
| { |
| struct swrast_renderbuffer Base; |
| /** |
| * The real renderbuffer storage. |
| * |
| * This is multisampled if NumSamples is > 1. |
| */ |
| struct intel_mipmap_tree *mt; |
| |
| /** |
| * Downsampled contents for window-system MSAA renderbuffers. |
| * |
| * For window system MSAA color buffers, the singlesample_mt is shared with |
| * other processes in DRI2 (and in DRI3, it's the image buffer managed by |
| * glx_dri3.c), while mt is private to our process. To do a swapbuffers, |
| * we have to downsample out of mt into singlesample_mt. For depth and |
| * stencil buffers, the singlesample_mt is also private, and since we don't |
| * expect to need to do resolves (except if someone does a glReadPixels() |
| * or glCopyTexImage()), we just temporarily allocate singlesample_mt when |
| * asked to map the renderbuffer. |
| */ |
| struct intel_mipmap_tree *singlesample_mt; |
| |
| /** |
| * \name Miptree view |
| * \{ |
| * |
| * Multiple renderbuffers may simultaneously wrap a single texture and each |
| * provide a different view into that texture. The fields below indicate |
| * which miptree slice is wrapped by this renderbuffer. The fields' values |
| * are consistent with the 'level' and 'layer' parameters of |
| * glFramebufferTextureLayer(). |
| * |
| * For renderbuffers not created with glFramebufferTexture*(), mt_level and |
| * mt_layer are 0. |
| * |
| * Note: for a 2D multisample array texture on Gen7+ using |
| * INTEL_MSAA_LAYOUT_UMS or INTEL_MSAA_LAYOUT_CMS, mt_layer is the physical |
| * layer holding sample 0. So, for example, if mt->num_samples == 4, then |
| * logical layer n corresponds to mt_layer == 4*n. |
| */ |
| unsigned int mt_level; |
| unsigned int mt_layer; |
| |
| /* The number of attached logical layers. */ |
| unsigned int layer_count; |
| /** \} */ |
| |
| GLuint draw_x, draw_y; /**< Offset of drawing within the region */ |
| |
| /** |
| * Set to true at every draw call, to indicate if a window-system |
| * renderbuffer needs to be downsampled before using singlesample_mt. |
| */ |
| bool need_downsample; |
| |
| /** |
| * Set to true when doing an intel_renderbuffer_map()/unmap() that requires |
| * an upsample at the end. |
| */ |
| bool need_map_upsample; |
| |
| /** |
| * Set to true if singlesample_mt is temporary storage that persists only |
| * for the duration of a mapping. |
| */ |
| bool singlesample_mt_is_tmp; |
| }; |
| |
| |
| /** |
| * gl_renderbuffer is a base class which we subclass. The Class field |
| * is used for simple run-time type checking. |
| */ |
| #define INTEL_RB_CLASS 0x12345678 |
| |
| |
| /** |
| * Return a gl_renderbuffer ptr casted to intel_renderbuffer. |
| * NULL will be returned if the rb isn't really an intel_renderbuffer. |
| * This is determined by checking the ClassID. |
| */ |
| static inline struct intel_renderbuffer * |
| intel_renderbuffer(struct gl_renderbuffer *rb) |
| { |
| struct intel_renderbuffer *irb = (struct intel_renderbuffer *) rb; |
| if (irb && irb->Base.Base.ClassID == INTEL_RB_CLASS) |
| return irb; |
| else |
| return NULL; |
| } |
| |
| |
| /** |
| * \brief Return the framebuffer attachment specified by attIndex. |
| * |
| * If the framebuffer lacks the specified attachment, then return null. |
| * |
| * If the attached renderbuffer is a wrapper, then return wrapped |
| * renderbuffer. |
| */ |
| static inline struct intel_renderbuffer * |
| intel_get_renderbuffer(struct gl_framebuffer *fb, gl_buffer_index attIndex) |
| { |
| struct gl_renderbuffer *rb; |
| |
| assert((unsigned)attIndex < ARRAY_SIZE(fb->Attachment)); |
| |
| rb = fb->Attachment[attIndex].Renderbuffer; |
| if (!rb) |
| return NULL; |
| |
| return intel_renderbuffer(rb); |
| } |
| |
| |
| static inline mesa_format |
| intel_rb_format(const struct intel_renderbuffer *rb) |
| { |
| return rb->Base.Base.Format; |
| } |
| |
| extern struct intel_renderbuffer * |
| intel_create_renderbuffer(mesa_format format, unsigned num_samples); |
| |
| struct intel_renderbuffer * |
| intel_create_private_renderbuffer(mesa_format format, unsigned num_samples); |
| |
| struct gl_renderbuffer* |
| intel_create_wrapped_renderbuffer(struct gl_context * ctx, |
| int width, int height, |
| mesa_format format); |
| |
| extern void |
| intel_fbo_init(struct brw_context *brw); |
| |
| void |
| intel_renderbuffer_set_draw_offset(struct intel_renderbuffer *irb); |
| |
| static inline uint32_t |
| intel_renderbuffer_get_tile_offsets(struct intel_renderbuffer *irb, |
| uint32_t *tile_x, |
| uint32_t *tile_y) |
| { |
| return intel_miptree_get_tile_offsets(irb->mt, irb->mt_level, irb->mt_layer, |
| tile_x, tile_y); |
| } |
| |
| bool |
| intel_renderbuffer_has_hiz(struct intel_renderbuffer *irb); |
| |
| void |
| intel_renderbuffer_att_set_needs_depth_resolve(struct gl_renderbuffer_attachment *att); |
| |
| |
| /** |
| * \brief Perform a HiZ resolve on the renderbuffer. |
| * |
| * It is safe to call this function on a renderbuffer without HiZ. In that |
| * case, the function is a no-op. |
| * |
| * \return false if no resolve was needed |
| */ |
| bool |
| intel_renderbuffer_resolve_hiz(struct brw_context *brw, |
| struct intel_renderbuffer *irb); |
| |
| /** |
| * \brief Perform a depth resolve on the renderbuffer. |
| * |
| * It is safe to call this function on a renderbuffer without HiZ. In that |
| * case, the function is a no-op. |
| * |
| * \return false if no resolve was needed |
| */ |
| bool |
| intel_renderbuffer_resolve_depth(struct brw_context *brw, |
| struct intel_renderbuffer *irb); |
| |
| void intel_renderbuffer_move_to_temp(struct brw_context *brw, |
| struct intel_renderbuffer *irb, |
| bool invalidate); |
| |
| void |
| intel_renderbuffer_downsample(struct brw_context *brw, |
| struct intel_renderbuffer *irb); |
| |
| void |
| intel_renderbuffer_upsample(struct brw_context *brw, |
| struct intel_renderbuffer *irb); |
| |
| void brw_render_cache_set_clear(struct brw_context *brw); |
| void brw_render_cache_set_add_bo(struct brw_context *brw, drm_intel_bo *bo); |
| void brw_render_cache_set_check_flush(struct brw_context *brw, drm_intel_bo *bo); |
| |
| unsigned |
| intel_quantize_num_samples(struct intel_screen *intel, unsigned num_samples); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* INTEL_FBO_H */ |