From ba1eb854bdb054714c5e98140c5697ed9b894c42 Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Thu, 14 Apr 2016 11:04:23 +1000
Subject: [PATCH] glsl: add cache to ctx and add sha1 string fields

We also add a flag for detecting shaders written to shader cache.

V2: dont leak cache

Signed-off-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
---
 src/mesa/main/context.c | 6 ++++++
 src/mesa/main/mtypes.h  | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index bd4551e..7ecd241 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -121,6 +121,7 @@
 #include "shared.h"
 #include "shaderobj.h"
 #include "shaderimage.h"
+#include "util/disk_cache.h"
 #include "util/strtod.h"
 #include "stencil.h"
 #include "texcompress_s3tc.h"
@@ -1229,6 +1230,8 @@ _mesa_initialize_context(struct gl_context *ctx,
    memset(&ctx->TextureFormatSupported, GL_TRUE,
 	  sizeof(ctx->TextureFormatSupported));
 
+   ctx->Cache = disk_cache_create();
+
    switch (ctx->API) {
    case API_OPENGL_COMPAT:
       ctx->BeginEnd = create_beginend_table(ctx);
@@ -1269,6 +1272,7 @@ fail:
    free(ctx->BeginEnd);
    free(ctx->OutsideBeginEnd);
    free(ctx->Save);
+   ralloc_free(ctx->Cache);
    return GL_FALSE;
 }
 
@@ -1336,6 +1340,8 @@ _mesa_free_context_data( struct gl_context *ctx )
    free(ctx->Save);
    free(ctx->ContextLost);
 
+   ralloc_free(ctx->Cache);
+
    /* Shared context state (display lists, textures, etc) */
    _mesa_reference_shared_state(ctx, &ctx->Shared, NULL);
 
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 4ac7531..1cc8322 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1927,6 +1927,9 @@ struct gl_program
 
    bool is_arb_asm; /** Is this an ARB assembly-style program */
 
+   /** Is this program written to on disk shader cache */
+   bool program_written_to_cache;
+
    GLbitfield64 SecondaryOutputsWritten; /**< Subset of OutputsWritten outputs written with non-zero index. */
    GLbitfield TexturesUsed[MAX_COMBINED_TEXTURE_IMAGE_UNITS];  /**< TEXTURE_x_BIT bitmask */
    GLbitfield SamplersUsed;   /**< Bitfield of which samplers are used */
@@ -2384,6 +2387,7 @@ struct gl_shader
    GLuint Name;  /**< AKA the handle */
    GLint RefCount;  /**< Reference count */
    GLchar *Label;   /**< GL_KHR_debug */
+   unsigned char sha1[20]; /**< SHA1 hash of pre-processed source */
    GLboolean DeletePending;
    GLboolean CompileStatus;
    bool IsES;              /**< True if this shader uses GLSL ES */
@@ -2649,6 +2653,9 @@ struct gl_shader_program_data
 {
    GLint RefCount;  /**< Reference count */
 
+   /** SHA1 hash of linked shader program */
+   unsigned char sha1[20];
+
    unsigned NumUniformStorage;
    unsigned NumHiddenUniforms;
    struct gl_uniform_storage *UniformStorage;
@@ -4645,6 +4652,8 @@ struct gl_context
     * Stores the arguments to glPrimitiveBoundingBox
     */
    GLfloat PrimitiveBoundingBox[8];
+
+   struct disk_cache *Cache;
 };
 
 /**
-- 
2.7.4