gallium/swr: add OpenSWR driver

OpenSWR is a new software rasterizer for x86 processors designed
for high performance and high scalablility on visualization workloads.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Acked-by: Jose Fonseca <jfonseca@vmware.com>

1 files changed, 182 insertions, 0 deletions

diff --git a/src/gallium/drivers/swr/swr_context.h b/src/gallium/drivers/swr/swr_context.h
new file mode 100644
index 0000000..73a8e8d
--- /dev/null
+++ b/src/gallium/drivers/swr/swr_context.h
@@ -0,0 +1,182 @@
+/****************************************************************************
+ * Copyright (C) 2015 Intel Corporation.   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
+ * 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 SWR_CONTEXT_H
+#define SWR_CONTEXT_H
+
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "util/u_blitter.h"
+#include "jit_api.h"
+#include "swr_state.h"
+#include <unordered_map>
+
+#define SWR_NEW_BLEND (1 << 0)
+#define SWR_NEW_RASTERIZER (1 << 1)
+#define SWR_NEW_DEPTH_STENCIL_ALPHA (1 << 2)
+#define SWR_NEW_SAMPLER (1 << 3)
+#define SWR_NEW_SAMPLER_VIEW (1 << 4)
+#define SWR_NEW_VS (1 << 5)
+#define SWR_NEW_FS (1 << 6)
+#define SWR_NEW_VSCONSTANTS (1 << 7)
+#define SWR_NEW_FSCONSTANTS (1 << 8)
+#define SWR_NEW_VERTEX (1 << 9)
+#define SWR_NEW_STIPPLE (1 << 10)
+#define SWR_NEW_SCISSOR (1 << 11)
+#define SWR_NEW_VIEWPORT (1 << 12)
+#define SWR_NEW_FRAMEBUFFER (1 << 13)
+#define SWR_NEW_CLIP (1 << 14)
+#define SWR_NEW_SO (1 << 15)
+#define SWR_NEW_ALL 0x0000ffff
+
+namespace std
+{
+template <> struct hash<BLEND_COMPILE_STATE> {
+   std::size_t operator()(const BLEND_COMPILE_STATE &k) const
+   {
+      return util_hash_crc32(&k, sizeof(k));
+   }
+};
+};
+
+struct swr_jit_texture {
+   uint32_t width; // same as number of elements
+   uint32_t height;
+   uint32_t depth; // doubles as array size
+   uint32_t first_level;
+   uint32_t last_level;
+   const void *base_ptr;
+   uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
+   uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
+   uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
+};
+
+struct swr_jit_sampler {
+   float min_lod;
+   float max_lod;
+   float lod_bias;
+   float border_color[4];
+};
+
+struct swr_draw_context {
+   const float *constantVS[PIPE_MAX_CONSTANT_BUFFERS];
+   unsigned num_constantsVS[PIPE_MAX_CONSTANT_BUFFERS];
+   const float *constantFS[PIPE_MAX_CONSTANT_BUFFERS];
+   unsigned num_constantsFS[PIPE_MAX_CONSTANT_BUFFERS];
+
+   swr_jit_texture texturesVS[PIPE_MAX_SHADER_SAMPLER_VIEWS];
+   swr_jit_sampler samplersVS[PIPE_MAX_SAMPLERS];
+   swr_jit_texture texturesFS[PIPE_MAX_SHADER_SAMPLER_VIEWS];
+   swr_jit_sampler samplersFS[PIPE_MAX_SAMPLERS];
+
+   SWR_SURFACE_STATE renderTargets[SWR_NUM_ATTACHMENTS];
+};
+
+struct swr_context {
+   struct pipe_context pipe; /**< base class */
+
+   HANDLE swrContext;
+
+   /** Constant state objects */
+   struct swr_blend_state *blend;
+   struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
+   struct pipe_depth_stencil_alpha_state *depth_stencil;
+   struct pipe_rasterizer_state *rasterizer;
+
+   struct swr_vertex_shader *vs;
+   struct swr_fragment_shader *fs;
+   struct swr_vertex_element_state *velems;
+
+   /** Other rendering state */
+   struct pipe_blend_color blend_color;
+   struct pipe_stencil_ref stencil_ref;
+   struct pipe_clip_state clip;
+   struct pipe_constant_buffer
+      constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
+   struct pipe_framebuffer_state framebuffer;
+   struct pipe_poly_stipple poly_stipple;
+   struct pipe_scissor_state scissor;
+   struct pipe_sampler_view *
+      sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
+
+   struct pipe_viewport_state viewport;
+   struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
+   struct pipe_index_buffer index_buffer;
+
+   struct blitter_context *blitter;
+
+   /** Conditional query object and mode */
+   struct pipe_query *render_cond_query;
+   uint render_cond_mode;
+   boolean render_cond_cond;
+   unsigned active_queries;
+
+   unsigned num_vertex_buffers;
+   unsigned num_samplers[PIPE_SHADER_TYPES];
+   unsigned num_sampler_views[PIPE_SHADER_TYPES];
+
+   unsigned sample_mask;
+
+   // streamout
+   pipe_stream_output_target *so_targets[MAX_SO_STREAMS];
+   uint32_t num_so_targets;
+
+   /* Temp storage for user_buffer constants */
+   struct swr_scratch_buffers *scratch;
+
+   // blend jit functions
+   std::unordered_map<BLEND_COMPILE_STATE, PFN_BLEND_JIT_FUNC> *blendJIT;
+
+   /* Derived SWR API DrawState */
+   struct swr_derived_state derived;
+
+   /* SWR private state - draw context */
+   struct swr_draw_context swrDC;
+
+   unsigned dirty; /**< Mask of SWR_NEW_x flags */
+};
+
+static INLINE struct swr_context *
+swr_context(struct pipe_context *pipe)
+{
+   return (struct swr_context *)pipe;
+}
+
+static INLINE void
+swr_update_draw_context(struct swr_context *ctx)
+{
+   swr_draw_context *pDC =
+      (swr_draw_context *)SwrGetPrivateContextState(ctx->swrContext);
+   memcpy(pDC, &ctx->swrDC, sizeof(swr_draw_context));
+}
+
+struct pipe_context *swr_create_context(struct pipe_screen *, void *priv, unsigned flags);
+
+void swr_state_init(struct pipe_context *pipe);
+
+void swr_clear_init(struct pipe_context *pipe);
+
+void swr_draw_init(struct pipe_context *pipe);
+
+void swr_finish(struct pipe_context *pipe);
+#endif