Merge remote branch 'origin/master' into radeon-rewrite

Conflicts:
	configure.ac
	src/mesa/drivers/dri/r200/r200_context.c
	src/mesa/drivers/dri/r300/r300_render.c

1 files changed, 366 insertions, 0 deletions

diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
new file mode 100644
index 0000000000..9dc541630c
--- /dev/null
+++ b/src/gallium/include/pipe/p_state.h
@@ -0,0 +1,366 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 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.
+ * 
+ **************************************************************************/
+
+
+/**
+ * @file
+ * 
+ * Abstract graphics pipe state objects.
+ *
+ * Basic notes:
+ *   1. Want compact representations, so we use bitfields.
+ *   2. Put bitfields before other (GLfloat) fields.
+ */
+
+
+#ifndef PIPE_STATE_H
+#define PIPE_STATE_H
+
+#include "p_compiler.h"
+#include "p_defines.h"
+#include "p_format.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * Implementation limits
+ */
+#define PIPE_MAX_ATTRIBS          32
+#define PIPE_MAX_CLIP_PLANES       6
+#define PIPE_MAX_COLOR_BUFS        8
+#define PIPE_MAX_CONSTANT         32
+#define PIPE_MAX_SAMPLERS         16
+#define PIPE_MAX_SHADER_INPUTS    16
+#define PIPE_MAX_SHADER_OUTPUTS   16
+#define PIPE_MAX_TEXTURE_LEVELS   16
+
+
+/* fwd decls */
+struct pipe_screen;
+struct pipe_surface;
+
+
+
+/**
+ * The driver will certainly subclass this to include actual memory
+ * management information.
+ */
+struct pipe_buffer
+{
+   unsigned alignment;
+   unsigned usage;
+   unsigned size;
+
+   /** Reference count */
+   unsigned refcount;
+};
+
+
+/**
+ * Primitive (point/line/tri) rasterization info
+ */
+struct pipe_rasterizer_state
+{
+   unsigned flatshade:1;
+   unsigned light_twoside:1;
+   unsigned front_winding:2;  /**< PIPE_WINDING_x */
+   unsigned cull_mode:2;      /**< PIPE_WINDING_x */
+   unsigned fill_cw:2;        /**< PIPE_POLYGON_MODE_x */
+   unsigned fill_ccw:2;       /**< PIPE_POLYGON_MODE_x */
+   unsigned offset_cw:1;
+   unsigned offset_ccw:1;
+   unsigned scissor:1;
+   unsigned poly_smooth:1;
+   unsigned poly_stipple_enable:1;
+   unsigned point_smooth:1;
+   unsigned point_sprite:1;
+   unsigned point_size_per_vertex:1; /**< size computed in vertex shader */
+   unsigned multisample:1;         /* XXX maybe more ms state in future */
+   unsigned line_smooth:1;
+   unsigned line_stipple_enable:1;
+   unsigned line_stipple_factor:8;  /**< [1..256] actually */
+   unsigned line_stipple_pattern:16;
+   unsigned line_last_pixel:1;
+   unsigned bypass_clipping:1;
+   unsigned bypass_vs:1; /**< Skip the vertex shader.  Note that the shader is
+                            still needed though, to indicate inputs/outputs */
+   unsigned origin_lower_left:1;  /**< Is (0,0) the lower-left corner? */
+   unsigned flatshade_first:1;   /**< take color attribute from the first vertex of a primitive */
+   unsigned gl_rasterization_rules:1; /**< enable tweaks for GL rasterization?  */
+
+   float line_width;
+   float point_size;           /**< used when no per-vertex size */
+   float point_size_min;        /* XXX - temporary, will go away */
+   float point_size_max;        /* XXX - temporary, will go away */
+   float offset_units;
+   float offset_scale;
+   ubyte sprite_coord_mode[PIPE_MAX_SHADER_OUTPUTS]; /**< PIPE_SPRITE_COORD_ */
+};
+
+
+struct pipe_poly_stipple
+{
+   unsigned stipple[32];
+};
+
+
+struct pipe_viewport_state
+{
+   float scale[4];
+   float translate[4];
+};
+
+
+struct pipe_scissor_state
+{
+   unsigned minx:16;
+   unsigned miny:16;
+   unsigned maxx:16;
+   unsigned maxy:16;
+};
+
+
+struct pipe_clip_state
+{
+   float ucp[PIPE_MAX_CLIP_PLANES][4];
+   unsigned nr;
+};
+
+
+/**
+ * Constants for vertex/fragment shaders
+ */
+struct pipe_constant_buffer
+{
+   struct pipe_buffer *buffer;
+};
+
+
+struct pipe_shader_state
+{
+   const struct tgsi_token *tokens;
+};
+
+
+struct pipe_depth_state 
+{
+   unsigned enabled:1;         /**< depth test enabled? */
+   unsigned writemask:1;       /**< allow depth buffer writes? */
+   unsigned func:3;            /**< depth test func (PIPE_FUNC_x) */
+   unsigned occlusion_count:1; /**< do occlusion counting? */
+};
+
+
+struct pipe_stencil_state
+{
+   unsigned enabled:1;  /**< stencil[0]: stencil enabled, stencil[1]: two-side enabled */
+   unsigned func:3;     /**< PIPE_FUNC_x */
+   unsigned fail_op:3;  /**< PIPE_STENCIL_OP_x */
+   unsigned zpass_op:3; /**< PIPE_STENCIL_OP_x */
+   unsigned zfail_op:3; /**< PIPE_STENCIL_OP_x */
+   ubyte ref_value;
+   ubyte valuemask;
+   ubyte writemask;
+};
+
+
+struct pipe_alpha_state
+{
+   unsigned enabled:1;
+   unsigned func:3;     /**< PIPE_FUNC_x */
+   float ref_value;     /**< reference value */
+};
+
+
+struct pipe_depth_stencil_alpha_state
+{
+   struct pipe_depth_state depth;
+   struct pipe_stencil_state stencil[2]; /**< [0] = front, [1] = back */
+   struct pipe_alpha_state alpha;
+};
+
+
+struct pipe_blend_state
+{
+   unsigned blend_enable:1;
+
+   unsigned rgb_func:3;          /**< PIPE_BLEND_x */
+   unsigned rgb_src_factor:5;    /**< PIPE_BLENDFACTOR_x */
+   unsigned rgb_dst_factor:5;    /**< PIPE_BLENDFACTOR_x */
+
+   unsigned alpha_func:3;        /**< PIPE_BLEND_x */
+   unsigned alpha_src_factor:5;  /**< PIPE_BLENDFACTOR_x */
+   unsigned alpha_dst_factor:5;  /**< PIPE_BLENDFACTOR_x */
+
+   unsigned logicop_enable:1;
+   unsigned logicop_func:4;      /**< PIPE_LOGICOP_x */
+
+   unsigned colormask:4;         /**< bitmask of PIPE_MASK_R/G/B/A */
+   unsigned dither:1;
+};
+
+
+struct pipe_blend_color
+{
+   float color[4];
+};
+
+
+struct pipe_framebuffer_state
+{
+   unsigned width, height;
+
+   /** multiple colorbuffers for multiple render targets */
+   unsigned nr_cbufs;
+   struct pipe_surface *cbufs[PIPE_MAX_COLOR_BUFS];
+
+   struct pipe_surface *zsbuf;      /**< Z/stencil buffer */
+};
+
+
+/**
+ * Texture sampler state.
+ */
+struct pipe_sampler_state
+{
+   unsigned wrap_s:3;            /**< PIPE_TEX_WRAP_x */
+   unsigned wrap_t:3;            /**< PIPE_TEX_WRAP_x */
+   unsigned wrap_r:3;            /**< PIPE_TEX_WRAP_x */
+   unsigned min_img_filter:2;    /**< PIPE_TEX_FILTER_x */
+   unsigned min_mip_filter:2;    /**< PIPE_TEX_MIPFILTER_x */
+   unsigned mag_img_filter:2;    /**< PIPE_TEX_FILTER_x */
+   unsigned compare_mode:1;      /**< PIPE_TEX_COMPARE_x */
+   unsigned compare_func:3;      /**< PIPE_FUNC_x */
+   unsigned normalized_coords:1; /**< Are coords normalized to [0,1]? */
+   unsigned prefilter:4;         /**< Wierd sampling state exposed by some api's */
+   float shadow_ambient;         /**< shadow test fail color/intensity */
+   float lod_bias;               /**< LOD/lambda bias */
+   float min_lod, max_lod;       /**< LOD clamp range, after bias */
+   float border_color[4];
+   float max_anisotropy;
+};
+
+
+/**
+ * 2D surface.  This is basically a view into a memory buffer.
+ * May be a renderbuffer, texture mipmap level, etc.
+ */
+struct pipe_surface
+{
+   enum pipe_format format;      /**< PIPE_FORMAT_x */
+   unsigned status;              /**< PIPE_SURFACE_STATUS_x */
+   unsigned clear_value;         /**< XXX may be temporary */
+   unsigned width;               /**< logical width in pixels */
+   unsigned height;              /**< logical height in pixels */
+   struct pipe_format_block block;
+   unsigned nblocksx;            /**< allocated width in blocks */
+   unsigned nblocksy;            /**< allocated height in blocks */
+   unsigned stride;              /**< stride in bytes between rows of blocks */
+   unsigned layout;              /**< PIPE_SURFACE_LAYOUT_x */
+   unsigned offset;              /**< offset from start of buffer, in bytes */
+   unsigned refcount;
+   unsigned usage;               /**< PIPE_BUFFER_USAGE_*  */
+
+   struct pipe_texture *texture; /**< texture into which this is a view  */
+   unsigned face;
+   unsigned level;
+   unsigned zslice;
+};
+
+
+/**
+ * Texture object.
+ */
+struct pipe_texture
+{ 
+   enum pipe_texture_target target; /**< PIPE_TEXTURE_x */
+   enum pipe_format format;         /**< PIPE_FORMAT_x */
+
+   unsigned width[PIPE_MAX_TEXTURE_LEVELS];
+   unsigned height[PIPE_MAX_TEXTURE_LEVELS];
+   unsigned depth[PIPE_MAX_TEXTURE_LEVELS];
+
+   struct pipe_format_block block;
+   unsigned nblocksx[PIPE_MAX_TEXTURE_LEVELS]; /**< allocated width in blocks */
+   unsigned nblocksy[PIPE_MAX_TEXTURE_LEVELS]; /**< allocated height in blocks */
+
+   unsigned last_level:8;    /**< Index of last mipmap level present/defined */
+   unsigned compressed:1;
+
+   unsigned nr_samples:8;    /**< for multisampled surfaces, nr of samples */
+
+   unsigned tex_usage;       /* PIPE_TEXTURE_USAGE_* */
+
+   /* These are also refcounted:
+    */
+   unsigned refcount;
+
+   struct pipe_screen *screen; /**< screen that this texture belongs to */
+};
+
+
+/**
+ * A vertex buffer.  Typically, all the vertex data/attributes for
+ * drawing something will be in one buffer.  But it's also possible, for
+ * example, to put colors in one buffer and texcoords in another.
+ */
+struct pipe_vertex_buffer
+{
+   unsigned stride;    /**< stride to same attrib in next vertex, in bytes */
+   unsigned max_index;   /**< number of vertices in this buffer */
+   unsigned buffer_offset;  /**< offset to start of data in buffer, in bytes */
+   struct pipe_buffer *buffer;  /**< the actual buffer */
+};
+
+
+/**
+ * Information to describe a vertex attribute (position, color, etc)
+ */
+struct pipe_vertex_element
+{
+   /** Offset of this attribute, in bytes, from the start of the vertex */
+   unsigned src_offset;
+
+   /** Which vertex_buffer (as given to pipe->set_vertex_buffer()) does
+    * this attribute live in?
+    */
+   unsigned vertex_buffer_index:8;
+   unsigned nr_components:8;
+ 
+   enum pipe_format src_format; 	   /**< PIPE_FORMAT_* */
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+   
+#endif