svga: Add svga driver

1 files changed, 443 insertions, 0 deletions

diff --git a/src/gallium/drivers/svga/svga_context.h b/src/gallium/drivers/svga/svga_context.h
new file mode 100644
index 00000000000..9a3e92fd8d1
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_context.h
@@ -0,0 +1,443 @@
+/**********************************************************
+ * Copyright 2008-2009 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 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 THE AUTHORS OR COPYRIGHT HOLDERS
+ * 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 SVGA_CONTEXT_H
+#define SVGA_CONTEXT_H
+
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_state.h"
+
+#include "util/u_double_list.h"
+
+#include "tgsi/tgsi_scan.h"
+
+
+#define SVGA_TEX_UNITS 8
+
+struct draw_vertex_shader;
+struct svga_shader_result;
+struct SVGACmdMemory;
+struct u_upload_mgr;
+
+
+struct svga_shader
+{
+   const struct tgsi_token *tokens;
+
+   struct tgsi_shader_info info;
+
+   struct svga_shader_result *results;
+
+   unsigned id;
+
+   boolean use_sm30;
+};
+
+struct svga_fragment_shader
+{
+   struct svga_shader base;
+};
+
+struct svga_vertex_shader
+{
+   struct svga_shader base;
+
+   struct draw_vertex_shader *draw_shader;
+};
+
+
+struct svga_cache_context;
+struct svga_tracked_state;
+
+struct svga_blend_state {
+
+   boolean need_white_fragments;
+
+   /* Should be per-render-target:
+    */
+   struct {
+      uint8_t writemask;
+
+      boolean blend_enable;
+      uint8_t srcblend;
+      uint8_t dstblend;
+      uint8_t blendeq;
+      
+      boolean separate_alpha_blend_enable;
+      uint8_t srcblend_alpha;
+      uint8_t dstblend_alpha;
+      uint8_t blendeq_alpha;
+
+   } rt[1];
+};
+
+struct svga_depth_stencil_state {
+   unsigned zfunc:8;
+   unsigned zenable:1;
+   unsigned zwriteenable:1;
+
+   unsigned alphatestenable:1;
+   unsigned alphafunc:8;
+  
+   struct {
+      unsigned enabled:1;
+      unsigned func:8;
+      unsigned fail:8;
+      unsigned zfail:8;
+      unsigned pass:8;
+   } stencil[2];
+   
+   /* SVGA3D has one ref/mask/writemask triple shared between front &
+    * back face stencil.  We really need two:
+    */
+   unsigned stencil_ref:8;
+   unsigned stencil_mask:8;
+   unsigned stencil_writemask:8;
+
+   float    alpharef;
+};
+
+#define SVGA_UNFILLED_DISABLE 0
+#define SVGA_UNFILLED_LINE    1
+#define SVGA_UNFILLED_POINT   2
+
+#define SVGA_PIPELINE_FLAG_POINTS   (1<<PIPE_PRIM_POINTS)
+#define SVGA_PIPELINE_FLAG_LINES    (1<<PIPE_PRIM_LINES)
+#define SVGA_PIPELINE_FLAG_TRIS     (1<<PIPE_PRIM_TRIANGLES)
+
+struct svga_rasterizer_state {
+   struct pipe_rasterizer_state templ; /* needed for draw module */
+
+   unsigned shademode:8;
+   unsigned cullmode:8;
+   unsigned scissortestenable:1;
+   unsigned multisampleantialias:1;
+   unsigned antialiasedlineenable:1;
+   unsigned lastpixel:1;
+
+   unsigned linepattern;
+
+   float slopescaledepthbias;
+   float depthbias;
+   float pointsize;
+   float pointsize_min;
+   float pointsize_max;
+   
+   unsigned hw_unfilled:16;         /* PIPE_POLYGON_MODE_x */
+   unsigned need_pipeline:16;    /* which prims do we need help for? */
+};
+
+struct svga_sampler_state {
+   unsigned mipfilter;
+   unsigned magfilter;
+   unsigned minfilter;
+   unsigned aniso_level;
+   float lod_bias;
+   unsigned addressu;
+   unsigned addressv;
+   unsigned addressw;
+   unsigned bordercolor;
+   unsigned normalized_coords:1;
+   unsigned compare_mode:1;
+   unsigned compare_func:3;
+
+   unsigned min_lod;
+   unsigned view_min_lod;
+   unsigned view_max_lod;
+};
+
+/* Use to calculate differences between state emitted to hardware and
+ * current driver-calculated state.  
+ */
+struct svga_state 
+{
+   const struct svga_blend_state *blend;
+   const struct svga_depth_stencil_state *depth;
+   const struct svga_rasterizer_state *rast;
+   const struct svga_sampler_state *sampler[PIPE_MAX_SAMPLERS];
+
+   struct pipe_texture *texture[PIPE_MAX_SAMPLERS]; /* or texture ID's? */
+   struct svga_fragment_shader *fs;
+   struct svga_vertex_shader *vs;
+
+   struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
+   struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS];
+   struct pipe_buffer *cb[PIPE_SHADER_TYPES];
+
+   struct pipe_framebuffer_state framebuffer;
+   float depthscale;
+
+   struct pipe_poly_stipple poly_stipple;
+   struct pipe_scissor_state scissor;
+   struct pipe_blend_color blend_color;
+   struct pipe_clip_state clip;
+   struct pipe_viewport_state viewport;
+
+   const unsigned *edgeflags;
+
+   unsigned num_samplers;
+   unsigned num_textures;
+   unsigned num_vertex_elements;
+   unsigned num_vertex_buffers;
+   unsigned reduced_prim;
+
+   struct {
+      unsigned flag_1d;
+      unsigned flag_srgb;
+   } tex_flags;
+
+   boolean any_user_vertex_buffers;
+
+   unsigned zero_stride_vertex_elements;
+   unsigned num_zero_stride_vertex_elements;
+   /* ### maybe dynamically allocate this */
+   float zero_stride_constants[PIPE_MAX_ATTRIBS*4];
+};
+
+#define RS_MAX 97
+#define TS_MAX 30
+#define CB_MAX 256
+
+struct svga_prescale {
+   float translate[4];
+   float scale[4];
+   boolean enabled;
+};
+
+
+/* Updated by calling svga_update_state( SVGA_STATE_HW_VIEWPORT )
+ */
+struct svga_hw_clear_state
+{
+   struct {
+      unsigned x,y,w,h;
+   } viewport;
+
+   struct {
+      float zmin, zmax;
+   } depthrange;
+   
+   struct pipe_framebuffer_state framebuffer;
+   struct svga_prescale prescale;
+};
+
+struct svga_hw_view_state
+{
+   struct pipe_texture *texture;
+   struct svga_sampler_view *v;
+   unsigned min_lod;
+   unsigned max_lod;
+   int dirty;
+};
+
+/* Updated by calling svga_update_state( SVGA_STATE_HW_DRAW )
+ */
+struct svga_hw_draw_state
+{
+   unsigned rs[RS_MAX];
+   unsigned ts[16][TS_MAX];
+   float cb[PIPE_SHADER_TYPES][CB_MAX][4];
+
+   unsigned shader_id[PIPE_SHADER_TYPES];
+   
+   struct svga_shader_result *fs;
+   struct svga_shader_result *vs;
+   struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
+
+   unsigned num_views;
+};
+
+
+/* Updated by calling svga_update_state( SVGA_STATE_NEED_SWTNL )
+ */
+struct svga_sw_state
+{
+   unsigned ve_format[PIPE_MAX_ATTRIBS]; /* NEW_VELEMENT */
+
+   /* which parts we need */
+   boolean need_swvfetch;
+   boolean need_pipeline;
+   boolean need_swtnl;
+};
+
+
+/* Queue some state updates (like rss) and submit them to hardware in
+ * a single packet.
+ */
+struct svga_hw_queue;
+
+struct svga_query;
+
+struct svga_context
+{
+   struct pipe_context pipe;
+   struct svga_winsys_context *swc;
+
+   struct {
+      boolean no_swtnl;
+      boolean force_swtnl;
+      boolean use_min_mipmap;
+
+      /* incremented for each shader */
+      unsigned shader_id;
+
+      unsigned disable_shader;
+   } debug;
+
+   struct {
+      struct draw_context *draw;
+      struct vbuf_render *backend;
+      unsigned hw_prim;
+      boolean new_vbuf;
+      boolean new_vdecl;
+   } swtnl;
+
+   struct {
+      unsigned dirty[4];
+
+      unsigned texture_timestamp;
+      unsigned next_fs_id;
+      unsigned next_vs_id;
+
+      /* Internally generated shaders:
+       */
+      unsigned white_fs_id;
+
+      /* 
+       */
+      struct svga_sw_state          sw;
+      struct svga_hw_draw_state     hw_draw;
+      struct svga_hw_clear_state    hw_clear;
+   } state;
+
+   struct svga_state curr;      /* state from the state tracker */
+   unsigned dirty;              /* statechanges since last update_state() */
+
+   struct u_upload_mgr *upload_ib;
+   struct u_upload_mgr *upload_vb;
+   struct svga_hwtnl *hwtnl;
+
+   /** The occlusion query currently in progress */
+   struct svga_query *sq;
+
+   /** List of buffers with queued transfers */
+   struct list_head dirty_buffers;
+};
+
+/* A flag for each state_tracker state object:
+ */
+#define SVGA_NEW_BLEND               0x1
+#define SVGA_NEW_DEPTH_STENCIL       0x2
+#define SVGA_NEW_RAST                0x4
+#define SVGA_NEW_SAMPLER             0x8
+#define SVGA_NEW_TEXTURE             0x10
+#define SVGA_NEW_VBUFFER             0x20
+#define SVGA_NEW_VELEMENT            0x40
+#define SVGA_NEW_FS                  0x80
+#define SVGA_NEW_VS                  0x100
+#define SVGA_NEW_FS_CONST_BUFFER     0x200
+#define SVGA_NEW_VS_CONST_BUFFER     0x400
+#define SVGA_NEW_FRAME_BUFFER        0x800
+#define SVGA_NEW_STIPPLE             0x1000
+#define SVGA_NEW_SCISSOR             0x2000
+#define SVGA_NEW_BLEND_COLOR         0x5000
+#define SVGA_NEW_CLIP                0x8000
+#define SVGA_NEW_VIEWPORT            0x10000
+#define SVGA_NEW_PRESCALE            0x20000
+#define SVGA_NEW_REDUCED_PRIMITIVE   0x40000
+#define SVGA_NEW_TEXTURE_BINDING     0x80000
+#define SVGA_NEW_NEED_PIPELINE       0x100000
+#define SVGA_NEW_NEED_SWVFETCH       0x200000
+#define SVGA_NEW_NEED_SWTNL          0x400000
+#define SVGA_NEW_FS_RESULT           0x800000
+#define SVGA_NEW_VS_RESULT           0x1000000
+#define SVGA_NEW_EDGEFLAGS           0x2000000
+#define SVGA_NEW_ZERO_STRIDE         0x4000000
+#define SVGA_NEW_TEXTURE_FLAGS       0x8000000
+
+
+
+
+
+/***********************************************************************
+ * svga_clear.c: 
+ */
+void svga_clear(struct pipe_context *pipe, 
+                unsigned buffers,
+                const float *rgba,
+                double depth,
+                unsigned stencil);
+
+
+/***********************************************************************
+ * svga_screen_texture.c: 
+ */
+void svga_mark_surfaces_dirty(struct svga_context *svga);
+
+
+
+
+void svga_init_state_functions( struct svga_context *svga );
+void svga_init_flush_functions( struct svga_context *svga );
+void svga_init_string_functions( struct svga_context *svga );
+void svga_init_blit_functions(struct svga_context *svga);
+
+void svga_init_blend_functions( struct svga_context *svga );
+void svga_init_depth_stencil_functions( struct svga_context *svga );
+void svga_init_misc_functions( struct svga_context *svga );
+void svga_init_rasterizer_functions( struct svga_context *svga );
+void svga_init_sampler_functions( struct svga_context *svga );
+void svga_init_fs_functions( struct svga_context *svga );
+void svga_init_vs_functions( struct svga_context *svga );
+void svga_init_vertex_functions( struct svga_context *svga );
+void svga_init_constbuffer_functions( struct svga_context *svga );
+void svga_init_draw_functions( struct svga_context *svga );
+void svga_init_query_functions( struct svga_context *svga );
+
+void svga_cleanup_vertex_state( struct svga_context *svga );
+void svga_cleanup_tss_binding( struct svga_context *svga );
+void svga_cleanup_framebuffer( struct svga_context *svga );
+
+void svga_context_flush( struct svga_context *svga,
+                         struct pipe_fence_handle **pfence );
+
+void svga_hwtnl_flush_retry( struct svga_context *svga );
+
+
+/***********************************************************************
+ * Inline conversion functions.  These are better-typed than the
+ * macros used previously:
+ */
+static INLINE struct svga_context *
+svga_context( struct pipe_context *pipe )
+{
+   return (struct svga_context *)pipe;
+}
+
+
+
+#endif