diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/intel_fbo.h')
-rw-r--r-- | src/mesa/drivers/dri/i965/intel_fbo.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_fbo.h b/src/mesa/drivers/dri/i965/intel_fbo.h new file mode 100644 index 0000000..5f40d35 --- /dev/null +++ b/src/mesa/drivers/dri/i965/intel_fbo.h @@ -0,0 +1,211 @@ +/************************************************************************** + * + * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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 "intel_context.h" +#include "intel_mipmap_tree.h" +#include "intel_screen.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct intel_context; +struct intel_mipmap_tree; +struct intel_texture_image; + +/** + * Intel renderbuffer, derived from gl_renderbuffer. + */ +struct intel_renderbuffer +{ + struct swrast_renderbuffer Base; + struct intel_mipmap_tree *mt; /**< The renderbuffer storage. */ + + /** + * \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. + */ + unsigned int mt_level; + unsigned int mt_layer; + /** \} */ + + GLuint draw_x, draw_y; /**< Offset of drawing within the region */ +}; + + +/** + * 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) { + /*_mesa_warning(NULL, "Returning non-intel Rb\n");*/ + 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 gl_format +intel_rb_format(const struct intel_renderbuffer *rb) +{ + return rb->Base.Base.Format; +} + +extern struct intel_renderbuffer * +intel_create_renderbuffer(gl_format format, unsigned num_samples); + +struct intel_renderbuffer * +intel_create_private_renderbuffer(gl_format format, unsigned num_samples); + +struct gl_renderbuffer* +intel_create_wrapped_renderbuffer(struct gl_context * ctx, + int width, int height, + gl_format format); + +extern void +intel_fbo_init(struct intel_context *intel); + + +extern void +intel_flip_renderbuffers(struct gl_framebuffer *fb); + +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); +} + +struct intel_region* +intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex); + +void +intel_renderbuffer_set_needs_downsample(struct intel_renderbuffer *irb); + +bool +intel_renderbuffer_has_hiz(struct intel_renderbuffer *irb); + +void +intel_renderbuffer_set_needs_hiz_resolve(struct intel_renderbuffer *irb); + +void +intel_renderbuffer_set_needs_depth_resolve(struct intel_renderbuffer *irb); + + +/** + * \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 intel_context *intel, + 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 intel_context *intel, + struct intel_renderbuffer *irb); + +void intel_renderbuffer_move_to_temp(struct intel_context *intel, + struct intel_renderbuffer *irb, + bool invalidate); + +unsigned +intel_quantize_num_samples(struct intel_screen *intel, unsigned num_samples); + +#ifdef __cplusplus +} +#endif + +#endif /* INTEL_FBO_H */ |