gallium/tests: fix build with clang compiler

Nested functions are supported as an extension in GNU C, but Clang
don't support them.

This fixes compilation errors when (manually) building compute.c,
or by setting --enable-gallium-tests to the configure script.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75165
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

1 files changed, 330 insertions, 273 deletions

diff --git a/src/gallium/tests/trivial/compute.c b/src/gallium/tests/trivial/compute.c
index bcdfb11c4f1..5ce12abe227 100644
--- a/src/gallium/tests/trivial/compute.c
+++ b/src/gallium/tests/trivial/compute.c
@@ -428,6 +428,35 @@ static void launch_grid(struct context *ctx, const uint *block_layout,
         pipe->launch_grid(pipe, block_layout, grid_layout, pc, input);
 }
 
+static void test_default_init(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = 0xdeadbeef;
+}
+
+/* test_system_values */
+static void test_system_values_expect(void *p, int s, int x, int y)
+{
+        int id = x / 16, sv = (x % 16) / 4, c = x % 4;
+        int tid[] = { id % 20, (id % 240) / 20, id / 240, 0 };
+        int bsz[] = { 4, 3, 5, 1};
+        int gsz[] = { 5, 4, 1, 1};
+
+        switch (sv) {
+        case 0:
+                *(uint32_t *)p = tid[c] / bsz[c];
+                break;
+        case 1:
+                *(uint32_t *)p = bsz[c];
+                break;
+        case 2:
+                *(uint32_t *)p = gsz[c];
+                break;
+        case 3:
+                *(uint32_t *)p = tid[c] % bsz[c];
+                break;
+        }
+}
+
 static void test_system_values(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -461,44 +490,31 @@ static void test_system_values(struct context *ctx)
                 "  STORE RES[0].xyzw, TEMP[0], SV[3]\n"
                 "  RET\n"
                 "ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expect(void *p, int s, int x, int y) {
-                int id = x / 16, sv = (x % 16) / 4, c = x % 4;
-                int tid[] = { id % 20, (id % 240) / 20, id / 240, 0 };
-                int bsz[] = { 4, 3, 5, 1};
-                int gsz[] = { 5, 4, 1, 1};
-
-                switch (sv) {
-                case 0:
-                        *(uint32_t *)p = tid[c] / bsz[c];
-                        break;
-                case 1:
-                        *(uint32_t *)p = bsz[c];
-                        break;
-                case 2:
-                        *(uint32_t *)p = gsz[c];
-                        break;
-                case 3:
-                        *(uint32_t *)p = tid[c] % bsz[c];
-                        break;
-                }
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 76800, 0, init);
+                 76800, 0, test_default_init);
         init_compute_resources(ctx, (int []) { 0, -1 });
         launch_grid(ctx, (uint []){4, 3, 5}, (uint []){5, 4, 1}, 0, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_system_values_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_resource_access */
+static void test_resource_access_init0(void *p, int s, int x, int y)
+{
+        *(float *)p = 8.0 - (float)x;
+}
+
+static void test_resource_access_expect(void *p, int s, int x, int y)
+{
+        *(float *)p = 8.0 - (float)((x + 4 * y) & 0x3f);
+}
+
 static void test_resource_access(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -519,31 +535,33 @@ static void test_resource_access(struct context *ctx)
                 "       STORE RES[1].xyzw, TEMP[1], TEMP[0]\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init0(void *p, int s, int x, int y) {
-                *(float *)p = 8.0 - (float)x;
-        }
-        void init1(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(float *)p = 8.0 - (float)((x + 4*y) & 0x3f);
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 256, 0, init0);
+                 256, 0, test_resource_access_init0);
         init_tex(ctx, 1, PIPE_TEXTURE_2D, true, PIPE_FORMAT_R32_FLOAT,
-                 60, 12, init1);
+                 60, 12, test_default_init);
         init_compute_resources(ctx, (int []) { 0, 1, -1 });
         launch_grid(ctx, (uint []){1, 1, 1}, (uint []){15, 12, 1}, 0, NULL);
-        check_tex(ctx, 1, expect, NULL);
+        check_tex(ctx, 1, test_resource_access_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_function_calls */
+static void test_function_calls_init(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = 15 * y + x;
+}
+
+static void test_function_calls_expect(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = (15 * y + x) < 4 ? 2 : 1 ;
+}
+
 static void test_function_calls(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -585,26 +603,26 @@ static void test_function_calls(struct context *ctx)
                 "21:  STORE RES[0].x, TEMP[2], TEMP[1].xxxx\n"
                 "22:  RET\n"
                 "23: ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 15 * y + x;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(uint32_t *)p = (15 * y + x) < 4 ? 2 : 1 ;
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_TEXTURE_2D, true, PIPE_FORMAT_R32_FLOAT,
-                 15, 12, init);
+                 15, 12, test_function_calls_init);
         init_compute_resources(ctx, (int []) { 0, -1 });
         launch_grid(ctx, (uint []){3, 3, 3}, (uint []){5, 4, 1}, 15, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_function_calls_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_input_global */
+static void test_input_global_expect(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = 0xdeadbeef - (x == 0 ? 0x10001 + 2 * s : 0);
+}
+
 static void test_input_global(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -621,35 +639,39 @@ static void test_input_global(struct context *ctx)
                 "       STORE RGLOBAL.x, TEMP[1].yyyy, TEMP[1]\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef - (x == 0 ? 0x10001 + 2 * s : 0);
-        }
         uint32_t input[8] = { 0x10001, 0x10002, 0x10003, 0x10004,
                               0x10005, 0x10006, 0x10007, 0x10008 };
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 0, 32, src, NULL);
-        init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT, 32, 0, init);
-        init_tex(ctx, 1, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT, 32, 0, init);
-        init_tex(ctx, 2, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT, 32, 0, init);
-        init_tex(ctx, 3, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT, 32, 0, init);
+        init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT, 32, 0,
+                 test_default_init);
+        init_tex(ctx, 1, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT, 32, 0,
+                 test_default_init);
+        init_tex(ctx, 2, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT, 32, 0,
+                 test_default_init);
+        init_tex(ctx, 3, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT, 32, 0,
+                 test_default_init);
         init_globals(ctx, (int []){ 0, 1, 2, 3, -1 },
                      (uint32_t *[]){ &input[1], &input[3],
                                      &input[5], &input[7] });
         launch_grid(ctx, (uint []){4, 1, 1}, (uint []){1, 1, 1}, 0, input);
-        check_tex(ctx, 0, expect, NULL);
-        check_tex(ctx, 1, expect, NULL);
-        check_tex(ctx, 2, expect, NULL);
-        check_tex(ctx, 3, expect, NULL);
+        check_tex(ctx, 0, test_input_global_expect, NULL);
+        check_tex(ctx, 1, test_input_global_expect, NULL);
+        check_tex(ctx, 2, test_input_global_expect, NULL);
+        check_tex(ctx, 3, test_input_global_expect, NULL);
         destroy_globals(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_private */
+static void test_private_expect(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = (x / 32) + x % 32;
+}
+
 static void test_private(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -691,26 +713,26 @@ static void test_private(struct context *ctx)
                 "       ENDLOOP\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(uint32_t *)p = (x / 32) + x % 32;
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 128, 0, src, NULL);
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 32768, 0, init);
+                 32768, 0, test_default_init);
         init_compute_resources(ctx, (int []) { 0, -1 });
         launch_grid(ctx, (uint []){16, 1, 1}, (uint []){16, 1, 1}, 0, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_private_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_local */
+static void test_local_expect(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = x & 0x20 ? 2 : 1;
+}
+
 static void test_local(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -778,26 +800,42 @@ static void test_local(struct context *ctx)
                 "       STORE RES[0].x, TEMP[1], TEMP[0]\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(uint32_t *)p = x & 0x20 ? 2 : 1;
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 256, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 4096, 0, init);
+                 4096, 0, test_default_init);
         init_compute_resources(ctx, (int []) { 0, -1 });
         launch_grid(ctx, (uint []){64, 1, 1}, (uint []){16, 1, 1}, 0, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_local_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_sample */
+static void test_sample_init(void *p, int s, int x, int y)
+{
+        *(float *)p = s ? 1 : x * y;
+}
+
+static void test_sample_expect(void *p, int s, int x, int y)
+{
+        switch (x % 4) {
+        case 0:
+                *(float *)p = x / 4 * y;
+                break;
+        case 1:
+        case 2:
+                *(float *)p = 0;
+                break;
+        case 3:
+                *(float *)p = 1;
+                break;
+        }
+}
+
 static void test_sample(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -818,36 +856,19 @@ static void test_sample(struct context *ctx)
                 "       STORE RES[0].xyzw, TEMP[0], TEMP[1]\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(float *)p = s ? 1 : x * y;
-        }
-        void expect(void *p, int s, int x, int y) {
-                switch (x % 4) {
-                case 0:
-                        *(float *)p = x / 4 * y;
-                        break;
-                case 1:
-                case 2:
-                        *(float *)p = 0;
-                        break;
-                case 3:
-                        *(float *)p = 1;
-                        break;
-                }
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_TEXTURE_2D, true, PIPE_FORMAT_R32_FLOAT,
-                 128, 32, init);
+                 128, 32, test_sample_init);
         init_tex(ctx, 1, PIPE_TEXTURE_2D, true, PIPE_FORMAT_R32_FLOAT,
-                 512, 32, init);
+                 512, 32, test_sample_init);
         init_compute_resources(ctx, (int []) { 1, -1 });
         init_sampler_views(ctx, (int []) { 0, -1 });
         init_sampler_states(ctx, 2);
         launch_grid(ctx, (uint []){1, 1, 1}, (uint []){128, 32, 1}, 0, NULL);
-        check_tex(ctx, 1, expect, NULL);
+        check_tex(ctx, 1, test_sample_expect, NULL);
         destroy_sampler_states(ctx);
         destroy_sampler_views(ctx);
         destroy_compute_resources(ctx);
@@ -855,6 +876,12 @@ static void test_sample(struct context *ctx)
         destroy_prog(ctx);
 }
 
+/* test_many_kern */
+static void test_many_kern_expect(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = x;
+}
+
 static void test_many_kern(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -883,29 +910,34 @@ static void test_many_kern(struct context *ctx)
                 "       STORE RES[0].x, TEMP[0], IMM[0].wwww\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(uint32_t *)p = x;
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 16, 0, init);
+                 16, 0, test_default_init);
         init_compute_resources(ctx, (int []) { 0, -1 });
         launch_grid(ctx, (uint []){1, 1, 1}, (uint []){1, 1, 1}, 0, NULL);
         launch_grid(ctx, (uint []){1, 1, 1}, (uint []){1, 1, 1}, 5, NULL);
         launch_grid(ctx, (uint []){1, 1, 1}, (uint []){1, 1, 1}, 10, NULL);
         launch_grid(ctx, (uint []){1, 1, 1}, (uint []){1, 1, 1}, 15, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_many_kern_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_constant */
+static void test_constant_init(void *p, int s, int x, int y)
+{
+        *(float *)p = s ? 0xdeadbeef : 8.0 - (float)x;
+}
+
+static void test_constant_expect(void *p, int s, int x, int y)
+{
+        *(float *)p = 8.0 - (float)x;
+}
+
 static void test_constant(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -922,28 +954,36 @@ static void test_constant(struct context *ctx)
                 "       STORE RES[1].x, TEMP[0], TEMP[1]\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(float *)p = s ? 0xdeadbeef : 8.0 - (float)x;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(float *)p = 8.0 - (float)x;
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_BUFFER, false, PIPE_FORMAT_R32_FLOAT,
-                 256, 0, init);
+                 256, 0, test_constant_init);
         init_tex(ctx, 1, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 256, 0, init);
+                 256, 0, test_constant_init);
         init_compute_resources(ctx, (int []) { 0, 1, -1 });
         launch_grid(ctx, (uint []){1, 1, 1}, (uint []){64, 1, 1}, 0, NULL);
-        check_tex(ctx, 1, expect, NULL);
+        check_tex(ctx, 1, test_constant_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_resource_indirect */
+static void test_resource_indirect_init(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = s == 0 ? 0xdeadbeef :
+                s == 1 ? x % 2 :
+                s == 2 ? 2 * x :
+                2 * x + 1;
+}
+
+static void test_resource_indirect_expect(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = 2 * x + (x % 2 ? 1 : 0);
+}
+
 static void test_resource_indirect(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -961,35 +1001,27 @@ static void test_resource_indirect(struct context *ctx)
                 "       STORE RES[0].x, TEMP[0], TEMP[1]\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = s == 0 ? 0xdeadbeef :
-                   s == 1 ? x % 2 :
-                   s == 2 ? 2 * x :
-                   2 * x + 1;
-        }
-        void expect(void *p, int s, int x, int y) {
-           *(uint32_t *)p = 2 * x + (x % 2 ? 1 : 0);
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 0, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 256, 0, init);
+                 256, 0, test_resource_indirect_init);
         init_tex(ctx, 1, PIPE_BUFFER, false, PIPE_FORMAT_R32_FLOAT,
-                 256, 0, init);
+                 256, 0, test_resource_indirect_init);
         init_tex(ctx, 2, PIPE_BUFFER, false, PIPE_FORMAT_R32_FLOAT,
-                 256, 0, init);
+                 256, 0, test_resource_indirect_init);
         init_tex(ctx, 3, PIPE_BUFFER, false, PIPE_FORMAT_R32_FLOAT,
-                 256, 0, init);
+                 256, 0, test_resource_indirect_init);
         init_compute_resources(ctx, (int []) { 0, 1, 2, 3, -1 });
         launch_grid(ctx, (uint []){1, 1, 1}, (uint []){64, 1, 1}, 0, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_resource_indirect_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_surface_ld */
 enum pipe_format surface_fmts[] = {
         PIPE_FORMAT_B8G8R8A8_UNORM,
         PIPE_FORMAT_B8G8R8X8_UNORM,
@@ -1023,6 +1055,42 @@ enum pipe_format surface_fmts[] = {
         PIPE_FORMAT_R32G32B32A32_SINT
 };
 
+static void test_surface_ld_init0f(void *p, int s, int x, int y)
+{
+        float v[] = { 1.0, -.75, .50, -.25 };
+        int i = 0;
+
+        util_format_write_4f(surface_fmts[i], v, 0, p, 0, 0, 0, 1, 1);
+}
+
+static void test_surface_ld_init0i(void *p, int s, int x, int y)
+{
+        int v[] = { 0xffffffff, 0xffff, 0xff, 0xf };
+        int i = 0;
+
+        util_format_write_4i(surface_fmts[i], v, 0, p, 0, 0, 0, 1, 1);
+}
+
+static void test_surface_ld_expectf(void *p, int s, int x, int y)
+{
+        float v[4], w[4];
+        int i = 0;
+
+        test_surface_ld_init0f(v, s, x / 4, y);
+        util_format_read_4f(surface_fmts[i], w, 0, v, 0, 0, 0, 1, 1);
+        *(float *)p = w[x % 4];
+}
+
+static void test_surface_ld_expecti(void *p, int s, int x, int y)
+{
+        int32_t v[4], w[4];
+        int i = 0;
+
+        test_surface_ld_init0i(v, s, x / 4, y);
+        util_format_read_4i(surface_fmts[i], w, 0, v, 0, 0, 0, 1, 1);
+        *(uint32_t *)p = w[x % 4];
+}
+
 static void test_surface_ld(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -1040,33 +1108,6 @@ static void test_surface_ld(struct context *ctx)
                 "       RET\n"
                 "    ENDSUB\n";
         int i = 0;
-        void init0f(void *p, int s, int x, int y) {
-                float v[] = { 1.0, -.75, .50, -.25 };
-                util_format_write_4f(surface_fmts[i], v, 0,
-                                     p, 0, 0, 0, 1, 1);
-        }
-        void init0i(void *p, int s, int x, int y) {
-                int v[] = { 0xffffffff, 0xffff, 0xff, 0xf };
-                util_format_write_4i(surface_fmts[i], v, 0,
-                                     p, 0, 0, 0, 1, 1);
-        }
-        void init1(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expectf(void *p, int s, int x, int y) {
-                float v[4], w[4];
-                init0f(v, s, x / 4, y);
-                util_format_read_4f(surface_fmts[i], w, 0,
-                                    v, 0, 0, 0, 1, 1);
-                *(float *)p = w[x % 4];
-        }
-        void expecti(void *p, int s, int x, int y) {
-                int32_t v[4], w[4];
-                init0i(v, s, x / 4, y);
-                util_format_read_4i(surface_fmts[i], w, 0,
-                                    v, 0, 0, 0, 1, 1);
-                *(uint32_t *)p = w[x % 4];
-        }
 
         printf("- %s\n", __func__);
 
@@ -1085,14 +1126,14 @@ static void test_surface_ld(struct context *ctx)
                 }
 
                 init_tex(ctx, 0, PIPE_TEXTURE_2D, true, surface_fmts[i],
-                         128, 32, (is_int ? init0i : init0f));
+                         128, 32, (is_int ? test_surface_ld_init0i : test_surface_ld_init0f));
                 init_tex(ctx, 1, PIPE_TEXTURE_2D, true, PIPE_FORMAT_R32_FLOAT,
-                         512, 32, init1);
+                         512, 32, test_default_init);
                 init_compute_resources(ctx, (int []) { 0, 1, -1 });
                 init_sampler_states(ctx, 2);
                 launch_grid(ctx, (uint []){1, 1, 1}, (uint []){128, 32, 1}, 0,
                             NULL);
-                check_tex(ctx, 1, (is_int ? expecti : expectf), NULL);
+                check_tex(ctx, 1, (is_int ? test_surface_ld_expecti : test_surface_ld_expectf), NULL);
                 destroy_sampler_states(ctx);
                 destroy_compute_resources(ctx);
                 destroy_tex(ctx);
@@ -1101,6 +1142,73 @@ static void test_surface_ld(struct context *ctx)
         destroy_prog(ctx);
 }
 
+/* test_surface_st */
+static void test_surface_st_init0f(void *p, int s, int x, int y)
+{
+        float v[] = { 1.0, -.75, 0.5, -.25 };
+        *(float *)p = v[x % 4];
+}
+
+static void test_surface_st_init0i(void *p, int s, int x, int y)
+{
+        int v[] = { 0xffffffff, 0xffff, 0xff, 0xf };
+        *(int32_t *)p = v[x % 4];
+}
+
+static void test_surface_st_init1(void *p, int s, int x, int y)
+{
+        int i = 0;
+        memset(p, 1, util_format_get_blocksize(surface_fmts[i]));
+}
+
+static void test_surface_st_expectf(void *p, int s, int x, int y)
+{
+        float vf[4];
+        int i = 0, j;
+
+        for (j = 0; j < 4; j++)
+                test_surface_st_init0f(&vf[j], s, 4 * x + j, y);
+        util_format_write_4f(surface_fmts[i], vf, 0, p, 0, 0, 0, 1, 1);
+}
+
+static void test_surface_st_expects(void *p, int s, int x, int y)
+{
+        int32_t v[4];
+        int i = 0, j;
+
+        for (j = 0; j < 4; j++)
+                test_surface_st_init0i(&v[j], s, 4 * x + j, y);
+        util_format_write_4i(surface_fmts[i], v, 0, p, 0, 0, 0, 1, 1);
+}
+
+static void test_surface_st_expectu(void *p, int s, int x, int y)
+{
+        uint32_t v[4];
+        int i = 0, j;
+
+        for (j = 0; j < 4; j++)
+                test_surface_st_init0i(&v[j], s, 4 * x + j, y);
+        util_format_write_4ui(surface_fmts[i], v, 0, p, 0, 0, 0, 1, 1);
+}
+
+static bool test_surface_st_check(void *x, void *y, int sz)
+{
+        int i = 0, j;
+
+        if (util_format_is_float(surface_fmts[i])) {
+                return fabs(*(float *)x - *(float *)y) < 3.92156863e-3;
+
+        } else if ((sz % 4) == 0) {
+                for (j = 0; j < sz / 4; j++)
+                        if (abs(((uint32_t *)x)[j] -
+                                ((uint32_t *)y)[j]) > 1)
+                                return false;
+                return true;
+        } else {
+                return !memcmp(x, y, sz);
+        }
+}
+
 static void test_surface_st(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -1118,60 +1226,6 @@ static void test_surface_st(struct context *ctx)
                 "       RET\n"
                 "    ENDSUB\n";
         int i = 0;
-        void init0f(void *p, int s, int x, int y) {
-                float v[] = { 1.0, -.75, 0.5, -.25 };
-                *(float *)p = v[x % 4];
-        }
-        void init0i(void *p, int s, int x, int y) {
-                int v[] = { 0xffffffff, 0xffff, 0xff, 0xf };
-                *(int32_t *)p = v[x % 4];
-        }
-        void init1(void *p, int s, int x, int y) {
-                memset(p, 1, util_format_get_blocksize(surface_fmts[i]));
-        }
-        void expectf(void *p, int s, int x, int y) {
-                float vf[4];
-                int j;
-
-                for (j = 0; j < 4; j++)
-                        init0f(&vf[j], s, 4 * x + j, y);
-                util_format_write_4f(surface_fmts[i], vf, 0,
-                                     p, 0, 0, 0, 1, 1);
-        }
-        void expects(void *p, int s, int x, int y) {
-                int32_t v[4];
-                int j;
-
-                for (j = 0; j < 4; j++)
-                        init0i(&v[j], s, 4 * x + j, y);
-                util_format_write_4i(surface_fmts[i], v, 0,
-                                     p, 0, 0, 0, 1, 1);
-        }
-        void expectu(void *p, int s, int x, int y) {
-                uint32_t v[4];
-                int j;
-
-                for (j = 0; j < 4; j++)
-                        init0i(&v[j], s, 4 * x + j, y);
-                util_format_write_4ui(surface_fmts[i], v, 0,
-                                      p, 0, 0, 0, 1, 1);
-        }
-        bool check(void *x, void *y, int sz) {
-                int j;
-
-                if (util_format_is_float(surface_fmts[i])) {
-                        return fabs(*(float *)x - *(float *)y) < 3.92156863e-3;
-
-                } else if ((sz % 4) == 0) {
-                        for (j = 0; j < sz / 4; j++)
-                                if (abs(((uint32_t *)x)[j] -
-                                        ((uint32_t *)y)[j]) > 1)
-                                        return false;
-                        return true;
-                } else {
-                        return !memcmp(x, y, sz);
-                }
-        }
 
         printf("- %s\n", __func__);
 
@@ -1192,16 +1246,16 @@ static void test_surface_st(struct context *ctx)
                 }
 
                 init_tex(ctx, 0, PIPE_TEXTURE_2D, true, PIPE_FORMAT_R32_FLOAT,
-                         512, 32, (is_int ? init0i : init0f));
+                         512, 32, (is_int ? test_surface_st_init0i : test_surface_st_init0f));
                 init_tex(ctx, 1, PIPE_TEXTURE_2D, true, surface_fmts[i],
-                         128, 32, init1);
+                         128, 32, test_surface_st_init1);
                 init_compute_resources(ctx, (int []) { 0, 1, -1 });
                 init_sampler_states(ctx, 2);
                 launch_grid(ctx, (uint []){1, 1, 1}, (uint []){128, 32, 1}, 0,
                             NULL);
-                check_tex(ctx, 1, (is_int && is_signed ? expects :
-                                   is_int && !is_signed ? expectu :
-                                   expectf), check);
+                check_tex(ctx, 1, (is_int && is_signed ? test_surface_st_expects :
+                                   is_int && !is_signed ? test_surface_st_expectu :
+                                   test_surface_st_expectf), test_surface_st_check);
                 destroy_sampler_states(ctx);
                 destroy_compute_resources(ctx);
                 destroy_tex(ctx);
@@ -1210,6 +1264,12 @@ static void test_surface_st(struct context *ctx)
         destroy_prog(ctx);
 }
 
+/* test_barrier */
+static void test_barrier_expect(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = 31;
+}
+
 static void test_barrier(struct context *ctx)
 {
         const char *src = "COMP\n"
@@ -1259,26 +1319,62 @@ static void test_barrier(struct context *ctx)
                 "       STORE RES[0].x, TEMP[1], TEMP[0]\n"
                 "       RET\n"
                 "    ENDSUB\n";
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 31;
-        }
 
         printf("- %s\n", __func__);
 
         init_prog(ctx, 256, 0, 0, src, NULL);
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 4096, 0, init);
+                 4096, 0, test_default_init);
         init_compute_resources(ctx, (int []) { 0, -1 });
         launch_grid(ctx, (uint []){64, 1, 1}, (uint []){16, 1, 1}, 0, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_barrier_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_atom_ops */
+static void test_atom_ops_init(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = 0xbad;
+}
+
+static void test_atom_ops_expect(void *p, int s, int x, int y)
+{
+        switch (x) {
+        case 0:
+                *(uint32_t *)p = 0xce6c8eef;
+                break;
+        case 1:
+                *(uint32_t *)p = 0xdeadbeef;
+                break;
+        case 2:
+                *(uint32_t *)p = 0x11111111;
+                break;
+        case 3:
+                *(uint32_t *)p = 0x10011001;
+                break;
+        case 4:
+                *(uint32_t *)p = 0xdfbdbfff;
+                break;
+        case 5:
+                *(uint32_t *)p = 0x11111111;
+                break;
+        case 6:
+                *(uint32_t *)p = 0x11111111;
+                break;
+        case 7:
+                *(uint32_t *)p = 0xdeadbeef;
+                break;
+        case 8:
+                *(uint32_t *)p = 0xdeadbeef;
+                break;
+        case 9:
+                *(uint32_t *)p = 0x11111111;
+                break;
+        }
+}
+
 static void test_atom_ops(struct context *ctx, bool global)
 {
         const char *src = "COMP\n"
@@ -1381,58 +1477,26 @@ static void test_atom_ops(struct context *ctx, bool global)
                 "       RET\n"
                 "    ENDSUB\n";
 
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xbad;
-        }
-        void expect(void *p, int s, int x, int y) {
-                switch (x) {
-                case 0:
-                        *(uint32_t *)p = 0xce6c8eef;
-                        break;
-                case 1:
-                        *(uint32_t *)p = 0xdeadbeef;
-                        break;
-                case 2:
-                        *(uint32_t *)p = 0x11111111;
-                        break;
-                case 3:
-                        *(uint32_t *)p = 0x10011001;
-                        break;
-                case 4:
-                        *(uint32_t *)p = 0xdfbdbfff;
-                        break;
-                case 5:
-                        *(uint32_t *)p = 0x11111111;
-                        break;
-                case 6:
-                        *(uint32_t *)p = 0x11111111;
-                        break;
-                case 7:
-                        *(uint32_t *)p = 0xdeadbeef;
-                        break;
-                case 8:
-                        *(uint32_t *)p = 0xdeadbeef;
-                        break;
-                case 9:
-                        *(uint32_t *)p = 0x11111111;
-                        break;
-                }
-        }
-
         printf("- %s (%s)\n", __func__, global ? "global" : "local");
 
         init_prog(ctx, 40, 0, 0, src,
                   (global ? "-DTARGET_GLOBAL" : "-DTARGET_LOCAL"));
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 40, 0, init);
+                 40, 0, test_atom_ops_init);
         init_compute_resources(ctx, (int []) { 0, -1 });
         launch_grid(ctx, (uint []){10, 1, 1}, (uint []){1, 1, 1}, 0, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_atom_ops_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);
 }
 
+/* test_atom_race */
+static void test_atom_race_expect(void *p, int s, int x, int y)
+{
+        *(uint32_t *)p = x & 0x20 ? 0x11111111 : 0xffffffff;
+}
+
 static void test_atom_race(struct context *ctx, bool global)
 {
         const char *src = "COMP\n"
@@ -1551,22 +1615,15 @@ static void test_atom_race(struct context *ctx, bool global)
                 "       RET\n"
                 "    ENDSUB\n";
 
-        void init(void *p, int s, int x, int y) {
-                *(uint32_t *)p = 0xdeadbeef;
-        }
-        void expect(void *p, int s, int x, int y) {
-                *(uint32_t *)p = x & 0x20 ? 0x11111111 : 0xffffffff;
-        }
-
         printf("- %s (%s)\n", __func__, global ? "global" : "local");
 
         init_prog(ctx, 256, 0, 0, src,
                   (global ? "-DTARGET_GLOBAL" : "-DTARGET_LOCAL"));
         init_tex(ctx, 0, PIPE_BUFFER, true, PIPE_FORMAT_R32_FLOAT,
-                 4096, 0, init);
+                 4096, 0, test_default_init);
         init_compute_resources(ctx, (int []) { 0, -1 });
         launch_grid(ctx, (uint []){64, 1, 1}, (uint []){16, 1, 1}, 0, NULL);
-        check_tex(ctx, 0, expect, NULL);
+        check_tex(ctx, 0, test_atom_race_expect, NULL);
         destroy_compute_resources(ctx);
         destroy_tex(ctx);
         destroy_prog(ctx);