From 28a7da612b4a3f822df293e50bf043782eca1cb8 Mon Sep 17 00:00:00 2001 From: Samuel Iglesias Gonsalvez Date: Fri, 18 Jul 2014 11:16:14 +0200 Subject: [PATCH] i965/gen6/gs: Setup SOL surfaces for user-provided geometry shaders Update gen6_gs_binding_table and gen6_sol_surface to use user-provided geometry program information when present. This is necessary to implement transform feedback support. Signed-off-by: Samuel Iglesias Gonsalvez Acked-by: Kenneth Graunke Reviewed-by: Jordan Justen --- src/mesa/drivers/dri/i965/gen6_sol.c | 119 ++++++++++++++++++++++++----------- 1 file changed, 81 insertions(+), 38 deletions(-) diff --git a/src/mesa/drivers/dri/i965/gen6_sol.c b/src/mesa/drivers/dri/i965/gen6_sol.c index e1c1b3c..d21a010 100644 --- a/src/mesa/drivers/dri/i965/gen6_sol.c +++ b/src/mesa/drivers/dri/i965/gen6_sol.c @@ -41,13 +41,21 @@ gen6_update_sol_surfaces(struct brw_context *brw) /* BRW_NEW_TRANSFORM_FEEDBACK */ struct gl_transform_feedback_object *xfb_obj = ctx->TransformFeedback.CurrentObject; - /* BRW_NEW_VERTEX_PROGRAM */ - const struct gl_shader_program *shaderprog = - ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; - const struct gl_transform_feedback_info *linked_xfb_info = - &shaderprog->LinkedTransformFeedback; + const struct gl_shader_program *shaderprog; + const struct gl_transform_feedback_info *linked_xfb_info; int i; + if (brw->geometry_program) { + /* BRW_NEW_GEOMETRY_PROGRAM */ + shaderprog = + ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]; + } else { + /* BRW_NEW_VERTEX_PROGRAM */ + shaderprog = + ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; + } + linked_xfb_info = &shaderprog->LinkedTransformFeedback; + for (i = 0; i < BRW_MAX_SOL_BINDINGS; ++i) { const int surf_index = SURF_INDEX_GEN6_SOL_BINDING(i); if (_mesa_is_xfb_active_and_unpaused(ctx) && @@ -56,12 +64,24 @@ gen6_update_sol_surfaces(struct brw_context *brw) unsigned buffer_offset = xfb_obj->Offset[buffer] / 4 + linked_xfb_info->Outputs[i].DstOffset; - brw_update_sol_surface( - brw, xfb_obj->Buffers[buffer], &brw->ff_gs.surf_offset[surf_index], - linked_xfb_info->Outputs[i].NumComponents, - linked_xfb_info->BufferStride[buffer], buffer_offset); + if (brw->geometry_program) { + brw_update_sol_surface( + brw, xfb_obj->Buffers[buffer], + &brw->gs.base.surf_offset[surf_index], + linked_xfb_info->Outputs[i].NumComponents, + linked_xfb_info->BufferStride[buffer], buffer_offset); + } else { + brw_update_sol_surface( + brw, xfb_obj->Buffers[buffer], + &brw->ff_gs.surf_offset[surf_index], + linked_xfb_info->Outputs[i].NumComponents, + linked_xfb_info->BufferStride[buffer], buffer_offset); + } } else { - brw->ff_gs.surf_offset[surf_index] = 0; + if (!brw->geometry_program) + brw->ff_gs.surf_offset[surf_index] = 0; + else + brw->gs.base.surf_offset[surf_index] = 0; } } @@ -73,6 +93,7 @@ const struct brw_tracked_state gen6_sol_surface = { .mesa = 0, .brw = (BRW_NEW_BATCH | BRW_NEW_VERTEX_PROGRAM | + BRW_NEW_GEOMETRY_PROGRAM | BRW_NEW_TRANSFORM_FEEDBACK), .cache = 0 }, @@ -86,38 +107,50 @@ const struct brw_tracked_state gen6_sol_surface = { static void brw_gs_upload_binding_table(struct brw_context *brw) { - struct gl_context *ctx = &brw->ctx; - /* BRW_NEW_VERTEX_PROGRAM */ - const struct gl_shader_program *shaderprog = - ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; - bool has_surfaces = false; uint32_t *bind; - if (shaderprog) { - const struct gl_transform_feedback_info *linked_xfb_info = - &shaderprog->LinkedTransformFeedback; - /* Currently we only ever upload surfaces for SOL. */ - has_surfaces = linked_xfb_info->NumOutputs != 0; - } + if (!brw->geometry_program) { + struct gl_context *ctx = &brw->ctx; + /* BRW_NEW_VERTEX_PROGRAM */ + const struct gl_shader_program *shaderprog = + ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; + bool has_surfaces = false; + + if (shaderprog) { + const struct gl_transform_feedback_info *linked_xfb_info = + &shaderprog->LinkedTransformFeedback; + /* Currently we only ever upload surfaces for SOL. */ + has_surfaces = linked_xfb_info->NumOutputs != 0; - /* Skip making a binding table if we don't have anything to put in it. */ - if (!has_surfaces) { - if (brw->ff_gs.bind_bo_offset != 0) { - brw->state.dirty.brw |= BRW_NEW_GS_BINDING_TABLE; - brw->ff_gs.bind_bo_offset = 0; + /* Skip making a binding table if we don't have anything to put in it. */ + if (!has_surfaces) { + if (brw->ff_gs.bind_bo_offset != 0) { + brw->state.dirty.brw |= BRW_NEW_GS_BINDING_TABLE; + brw->ff_gs.bind_bo_offset = 0; + } + return; + } } - return; } /* Might want to calculate nr_surfaces first, to avoid taking up so much * space for the binding table. */ - bind = brw_state_batch(brw, AUB_TRACE_BINDING_TABLE, - sizeof(uint32_t) * BRW_MAX_GEN6_GS_SURFACES, - 32, &brw->ff_gs.bind_bo_offset); + if (brw->geometry_program) { + bind = brw_state_batch(brw, AUB_TRACE_BINDING_TABLE, + sizeof(uint32_t) * BRW_MAX_GEN6_GS_SURFACES, + 32, &brw->gs.base.bind_bo_offset); - /* BRW_NEW_SURFACES */ - memcpy(bind, brw->ff_gs.surf_offset, BRW_MAX_GEN6_GS_SURFACES * sizeof(uint32_t)); + /* BRW_NEW_SURFACES */ + memcpy(bind, brw->gs.base.surf_offset, BRW_MAX_GEN6_GS_SURFACES * sizeof(uint32_t)); + } else { + bind = brw_state_batch(brw, AUB_TRACE_BINDING_TABLE, + sizeof(uint32_t) * BRW_MAX_GEN6_GS_SURFACES, + 32, &brw->ff_gs.bind_bo_offset); + + /* BRW_NEW_SURFACES */ + memcpy(bind, brw->ff_gs.surf_offset, BRW_MAX_GEN6_GS_SURFACES * sizeof(uint32_t)); + } brw->state.dirty.brw |= BRW_NEW_GS_BINDING_TABLE; } @@ -126,8 +159,9 @@ const struct brw_tracked_state gen6_gs_binding_table = { .dirty = { .mesa = 0, .brw = (BRW_NEW_BATCH | - BRW_NEW_VERTEX_PROGRAM | - BRW_NEW_SURFACES), + BRW_NEW_VERTEX_PROGRAM | + BRW_NEW_GEOMETRY_PROGRAM | + BRW_NEW_SURFACES), .cache = 0 }, .emit = brw_gs_upload_binding_table, @@ -174,15 +208,24 @@ brw_begin_transform_feedback(struct gl_context *ctx, GLenum mode, struct gl_transform_feedback_object *obj) { struct brw_context *brw = brw_context(ctx); - const struct gl_shader_program *vs_prog = - ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; - const struct gl_transform_feedback_info *linked_xfb_info = - &vs_prog->LinkedTransformFeedback; + const struct gl_shader_program *shaderprog; + const struct gl_transform_feedback_info *linked_xfb_info; struct gl_transform_feedback_object *xfb_obj = ctx->TransformFeedback.CurrentObject; assert(brw->gen == 6); + if (brw->geometry_program) { + /* BRW_NEW_GEOMETRY_PROGRAM */ + shaderprog = + ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]; + } else { + /* BRW_NEW_VERTEX_PROGRAM */ + shaderprog = + ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; + } + linked_xfb_info = &shaderprog->LinkedTransformFeedback; + /* Compute the maximum number of vertices that we can write without * overflowing any of the buffers currently being used for feedback. */ -- 2.7.4