glsl_to_tgsi: declare all SSBOs and atomics when indirect indexing is used

Only the first array element was declared, so tgsi_shader_info::
shader_buffers_declared didn't match what the shader was using.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 9620ef760f3113070e2f9ee23cec9f61f65c8e90..76cd4dc3a5e11e8dd55f02cab1bc8fa50ba78afa 100644 (file)
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -420,7 +420,6 @@ public:
    uint32_t samplers_used;
    glsl_base_type sampler_types[PIPE_MAX_SAMPLERS];
    int sampler_targets[PIPE_MAX_SAMPLERS];   /**< One of TGSI_TEXTURE_* */
-   int buffers_used;
    int images_used;
    int image_targets[PIPE_MAX_SHADER_IMAGES];
    unsigned image_formats[PIPE_MAX_SHADER_IMAGES];
@@ -4543,7 +4542,6 @@ glsl_to_tgsi_visitor::glsl_to_tgsi_visitor()
    num_immediates = 0;
    num_address_regs = 0;
    samplers_used = 0;
-   buffers_used = 0;
    images_used = 0;
    indirect_addr_consts = false;
    wpos_transform_const = -1;
@@ -4581,7 +4579,6 @@ static void
 count_resources(glsl_to_tgsi_visitor *v, gl_program *prog)
 {
    v->samplers_used = 0;
-   v->buffers_used = 0;
    v->images_used = 0;
 
    foreach_in_list(glsl_to_tgsi_instruction, inst, &v->instructions) {
@@ -4607,12 +4604,9 @@ count_resources(glsl_to_tgsi_visitor *v, gl_program *prog)
       if (inst->resource.file != PROGRAM_UNDEFINED && (
                 is_resource_instruction(inst->op) ||
                 inst->op == TGSI_OPCODE_STORE)) {
-         if (inst->resource.file == PROGRAM_BUFFER) {
-            v->buffers_used |= 1 << inst->resource.index;
-         } else if (inst->resource.file == PROGRAM_MEMORY) {
+         if (inst->resource.file == PROGRAM_MEMORY) {
             v->use_shared_memory = true;
-         } else {
-            assert(inst->resource.file == PROGRAM_IMAGE);
+         } else if (inst->resource.file == PROGRAM_IMAGE) {
             for (int i = 0; i < inst->sampler_array_size; i++) {
                unsigned idx = inst->sampler_base + i;
                v->images_used |= 1 << idx;
@@ -6580,16 +6574,20 @@ st_translate_program(
       }
    }
 
-   for (i = 0; i < frag_const->MaxAtomicBuffers; i++) {
-      if (program->buffers_used & (1 << i)) {
-         t->buffers[i] = ureg_DECL_buffer(ureg, i, true);
+   /* Declare atomic and shader storage buffers. */
+   {
+      struct gl_program *prog = program->prog;
+
+      for (i = 0; i < prog->info.num_abos; i++) {
+         unsigned index = prog->sh.AtomicBuffers[i]->Binding;
+         assert(index < frag_const->MaxAtomicBuffers);
+         t->buffers[index] = ureg_DECL_buffer(ureg, index, true);
       }
-   }
 
-   for (; i < frag_const->MaxAtomicBuffers + frag_const->MaxShaderStorageBlocks;
-        i++) {
-      if (program->buffers_used & (1 << i)) {
-         t->buffers[i] = ureg_DECL_buffer(ureg, i, false);
+      assert(prog->info.num_ssbos <= frag_const->MaxShaderStorageBlocks);
+      for (i = 0; i < prog->info.num_ssbos; i++) {
+         unsigned index = frag_const->MaxAtomicBuffers + i;
+         t->buffers[index] = ureg_DECL_buffer(ureg, index, false);
       }
    }