glsl: Added gl_shader_state::EmitContReturn field

This is the start of a glsl-continue-return feature branch to support
a GLSL code generator option for 'continue' and 'return' statements.
Some targets don't support CONT or RET statements so we'll need to
try to generate code that does not use them...

2 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 71a85a9db8..39b08d7a58 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2048,6 +2048,7 @@ struct gl_shader_state
    struct gl_shader_program *CurrentProgram; /**< The user-bound program */
    /** Driver-selectable options: */
    GLboolean EmitHighLevelInstructions; /**< IF/ELSE/ENDIF vs. BRA, etc. */
+   GLboolean EmitContReturn;            /**< Emit CONT/RET opcodes? */
    GLboolean EmitCondCodes;             /**< Use condition codes? */
    GLboolean EmitComments;              /**< Annotated instructions */
    void *MemPool;
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index a8390d3094..648fbc186b 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -402,6 +402,7 @@ _mesa_init_shader_state(GLcontext * ctx)
     * are generated by the GLSL compiler.
     */
    ctx->Shader.EmitHighLevelInstructions = GL_TRUE;
+   ctx->Shader.EmitContReturn = GL_TRUE;
    ctx->Shader.EmitCondCodes = GL_FALSE;
    ctx->Shader.EmitComments = GL_FALSE;
    ctx->Shader.Flags = get_shader_flags();